WO2016206484A1 - Resource scheduling indication method and apparatus - Google Patents

Resource scheduling indication method and apparatus Download PDF

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Publication number
WO2016206484A1
WO2016206484A1 PCT/CN2016/081444 CN2016081444W WO2016206484A1 WO 2016206484 A1 WO2016206484 A1 WO 2016206484A1 CN 2016081444 W CN2016081444 W CN 2016081444W WO 2016206484 A1 WO2016206484 A1 WO 2016206484A1
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WIPO (PCT)
Prior art keywords
indication information
sta
resource
information
resource blocks
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PCT/CN2016/081444
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French (fr)
Chinese (zh)
Inventor
田开波
吕开颖
姚珂
邢卫民
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中兴通讯股份有限公司
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Publication of WO2016206484A1 publication Critical patent/WO2016206484A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Definitions

  • This document relates to, but is not limited to, the field of communications, and in particular, to a method and apparatus for indicating resource scheduling.
  • IEEE 802.11a/b/g IEEE 802.11a/b/g.
  • 802.11ac technology can achieve data rates of more than 1 Gbps by introducing technologies such as larger channel bandwidth and higher-order MIMO (Multiple-Input Multiple-Output).
  • MIMO Multiple-Input Multiple-Output
  • an AP access point, access point site
  • a plurality of non-AP STAs non-AP stations associated with the AP form a BSS (basic service set). set).
  • the physical layer uses OFDM (Orthogonal Frequency Division Multiple) modulation technology, and the bandwidth of the wireless channel used for each communication is the basic bandwidth. Integer multiple of 20MHz (20/40/80/160MHz), but since the wireless channel has an inherent property of coherent bandwidth, and its coherent bandwidth is usually much smaller than 20MHz, the transceiver uses a full 20MHz and larger in one communication. Bandwidth wireless channels can cause low spectrum utilization.
  • the TGax task force introduced OFDMA (Orthogonal Frequency Division Multiple Access) as the main technology of the next-generation WLAN standard to improve spectrum utilization.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the 20MHz bandwidth is divided into multiple small bandwidths, AP It can communicate with multiple non-access point sites at the same time.
  • Each non-access point site can use one or more small bandwidths.
  • the non-access point sites use several and which small bandwidths require the AP to send relevant control information. Instructions.
  • the indication information usually uses a fixed number of bits and uses a bitmap. If the resource indication still uses this mode in the 802.11ax standard, the number of bits occupied will be very large, especially In the case where the channel bandwidth is greater than 20 MHz and the number of STAs (sites) is large; for example, each 20 MHz channel bandwidth is divided into 9 schedulable small bandwidths, and 36 independent schedulable bandwidths are available under the 80 MHz channel bandwidth, if simple
  • the bitmap mode means that each resource block occupies one bit.
  • each STA will use 36 bits for a total of 144 bits, and in order to improve the reliability of control information transmission such as scheduling, the WLAN usually uses The low-rate coding modulation mode MCS (Modulation and Coding Scheme) performs transmission, which increases the ratio of the transmission time occupied by the indication information to the data transmission time, thereby reducing the transmission efficiency.
  • MCS Modulation and Coding Scheme
  • the embodiment of the invention provides a method and a device for indicating resource scheduling, which can solve the problem of reducing the number of bits indicating the resource scheduling situation while still using the bitmap mode.
  • a method for indicating resource scheduling includes:
  • the sender generates resource allocation indication information
  • the resource allocation indication information includes resource allocation indication information of the N stations; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the location indication information of the resource block used by the STA; ⁇ 1;
  • the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: Indicates a rounding operation, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1 ⁇ n ⁇ N;
  • the number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite
  • the number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies: allocated for the STA
  • the maximum number R m-max of the resource block is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
  • the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
  • the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
  • the location indication information of the resource block used by the N STAs is arranged after all other indication information.
  • the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the resources used by the N STAs The number of blocks indicates that there is no other information between the messages.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA.
  • the information is the default indication.
  • the radio frame further includes size information of resources scheduled by the radio frame.
  • the radio frame further includes resource block granularity information, and/or a STA of the current radio frame scheduling Quantity information.
  • the radio frame further includes indication information indicating whether all resource blocks are scheduled.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information Information is not identical, or identical, or completely different.
  • the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
  • the identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
  • the identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
  • the radio frame further includes group identification indication information of the STA.
  • the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
  • a method for indicating resource scheduling includes:
  • the station STA receives the radio frame that includes the resource allocation indication information, and the resource allocation indication information includes the resource allocation indication information of the N STAs.
  • the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the The location indication information of the resource block used by the STA; N ⁇ 1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1 ⁇ n ⁇ N; the position of the resource block used by the nth STA indicates the bits occupied by the information.
  • the number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
  • the STA determines a resource block allocated to the STA according to the resource allocation indication information.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA.
  • the information is the default indication.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs
  • the indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and
  • the number of resource blocks used by the N STAs indicates that there is no other information between the information;
  • Determining, by the STA, the allocated resource block according to the resource allocation indication information includes:
  • the STA learns the order of the STA according to the indication information of the resource indication order of each STA; the total number of resource blocks is confirmed according to the indication information of the total number of resource blocks scheduled by the radio frame, according to the total number of resource blocks and the scheduling
  • the number of STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STA is obtained according to the number of resource blocks used by the STA;
  • the sum of the number of bits finds the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication information of the resource block used by the STA is obtained. And obtaining, according to the location indication information of the resource block used by the STA, the location of the resource block allocated to the STA.
  • the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
  • the indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  • the radio frame further includes quantity information of the scheduled STAs.
  • the indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to the resources: The scheduling granularity and the size information of the scheduled resources calculate the total number of resource blocks;
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources
  • the size information calculates the total number of resource blocks.
  • the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
  • a resource scheduling indication device is disposed in the sender device, and includes:
  • Generating a module configured to generate resource allocation indication information
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the generating module generates resource allocation indication information for the N STAs in sequence; each time in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies:
  • the maximum number R m-max of the resource blocks allocated by the STA is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
  • the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
  • the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
  • the location indication information of the resource block used by the N STAs is arranged after all other indication information.
  • the location indication information of the resource block used by the N STAs there is no other information between the number of resource blocks used by the N STAs and the number of resource blocks used by the N STAs.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource of the Nth STA.
  • the allocation indication information is the default indication information.
  • the radio frame further includes size information of resources scheduled by the radio frame.
  • the radio frame further includes resource block granularity information, and/or quantity information of STAs scheduled by the current radio frame.
  • the radio frame further includes indication information indicating whether all resource blocks are scheduled.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information Information is not identical, or identical, or completely different.
  • the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
  • the identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
  • the radio frame further includes group identification indication information of the STA.
  • the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
  • a receiving module configured to receive a radio frame that includes resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the number of resource blocks used by the STA The indication information and the location indication information of the resource block used by the STA; N ⁇ 1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1 ⁇ n ⁇ N; the position of the resource block used by the nth STA indicates the bits occupied by the information.
  • the number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
  • a processing module configured to determine, according to the resource allocation indication information, a resource block allocated to the STA where the STA is located.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs
  • the indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and
  • the number of resource blocks used by the N STAs indicates that there is no other information between the information;
  • Determining, by the processing module, the resource blocks allocated to the STAs that are located according to the resource allocation indication information includes:
  • the processing module learns the order of the STAs according to the indication information of the resource indication order of each STA; and confirms the total number of resource blocks according to the indication information of the total number of resource blocks scheduled by the current radio frame, according to the total number of resource blocks and
  • the number of the scheduled STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STAs is obtained according to the number of resource blocks used by the STAs;
  • the sum of the number of bits is found to find the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication of the resource block used by the STA is obtained.
  • the information is obtained according to the location indication information of the resource block used by the STA, and the location of the resource block allocated to the STA.
  • the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
  • the indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  • the radio frame further includes quantity information of the scheduled STAs.
  • the indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to the resources: The scheduling granularity and the size information of the scheduled resources calculate the total of the resource blocks Quantity
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources
  • the size information calculates the total number of resource blocks.
  • the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
  • a computer readable storage medium storing computer executable instructions for performing the above method.
  • the embodiment of the invention provides a resource scheduling indication scheme, which can support flexible resource scheduling allocation, and can greatly reduce the overhead of resource allocation indication information, thereby improving indication efficiency and improving network transmission efficiency.
  • FIG. 1 is a schematic flowchart of a method for indicating resource scheduling according to Embodiment 1;
  • FIG. 2 is a schematic flowchart of a method for indicating resource scheduling according to Embodiment 2;
  • FIG. 3 is a schematic diagram of resource block allocation of four STAs in Embodiments 1 to 6;
  • FIG. 4 is a schematic diagram of resource block allocation after culling STA1 allocated resource blocks in Embodiment 1;
  • FIG. 6 is a schematic diagram of resource block allocation after removing STA3 allocation resource blocks in Embodiments 2-6;
  • FIG. 7 is a schematic diagram of resource block allocation after removing resource blocks allocated by STA3 and STA4 in Embodiments 2-6;
  • FIG. 8 is a schematic diagram of a resource scheduling indication device of Embodiment 3.
  • FIG. 9 is a schematic diagram of a resource scheduling indication device of Embodiment 4.
  • Embodiment 1 A method for indicating resource scheduling, as shown in FIG. 1 , includes steps S110-S120:
  • the sender generates resource allocation indication information.
  • the resource allocation indication information may be generated according to the resource block allocated to the N STAs after the resource is allocated to the N STAs, or may be generated according to the resource block allocated to the N STAs.
  • the resource allocation indication information may be generated according to the resource block allocated to the N STAs after the resource is allocated to the N STAs, or may be generated according to the resource block allocated to the N STAs.
  • the sender sends a radio frame that includes the resource allocation indication information to a receiver.
  • the resource allocation indication information includes resource allocation indication information of the N STAs; the resource allocation indication information of each STA includes at least two parts of content: the quantity indication information of the resource block used by the STA and the location indication of the resource block used by the STA Information; wherein N is an integer greater than or equal to 1;
  • the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: among them, Representing the rounding operation, R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1 ⁇ n ⁇ N, when n is 1, R n is ready to be allocated to the N STAs The total number of resource blocks;
  • the number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, which is indicated by a bitmap mode; the number of the resource block is Numbers from 1 to R n that have been re-allocated by R n resource blocks. After the resource blocks are renumbered, the size relationship of the numbers is the same as the original number (the last number), that is, the result sorted by the original number. The result is the same as the result sorted by the new number; the number when n is 1 is the initial number of the resource block, and the original number does not exist at this time.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is increased by 1, that is, the number of bits is x+1, x is a positive integer.
  • the step S110 includes: generating resource allocation indication information for the N STAs in sequence; and generating, in each of the STAs that do not generate the resource allocation indication information, resource allocation indication information, where One STA satisfies: the maximum number R m-max of resource blocks allocated for the STA is the minimum value among the maximum numbers of resource blocks allocated to other STAs that have not yet generated resource allocation indication information.
  • the numbers described in this alternative may all refer to the initial number.
  • the STA that has not generated the resource allocation indication information continues to find the STA that meets the above conditions as the first STA, and preferentially generates the resource of the STA.
  • the indication information is allocated until resource allocation indication information of all STAs has been generated.
  • resource allocation indications may be made in a default or predetermined order.
  • the radio frame further includes the identifier information of the N STAs, which may be, but not limited to, an AID (Application Identifier) or a PAID (Proccessed Application Identifier).
  • the identification information of the N STAs is arranged in the radio frame in the order of the resource allocation indication information of the generated STA.
  • the quantity indication information of the resource blocks used by the N STAs is continuously indicated in the radio frame, and the order of indication is the same as the order of indication information of the STA.
  • the location indication information of the resource block used by the N STAs is continuously indicated in the radio frame, and the order of the indication is the same as the indication order of the STA.
  • the location indication information of the resource block used by the N STAs is arranged after all other indication information.
  • the location indication information of the resource block used by the N STAs is in accordance with the quantity indication information of the resource blocks used by the N STAs, that is, the resources used by the N STAs.
  • the location indication information of the block is located after the number indication information of the resource blocks used by the N STAs, and there is no other information (including idle bits) between the number indications of the resource blocks used by the N STAs, that is, The next bit after the last bit of the quantity indication information is the first bit of the position indication information.
  • the Nth STA occupies all resource blocks that have not been used, it is not necessary to indicate in the resource allocation indication information or adopt a default indication information, that is, in the case
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is the default indication information.
  • the radio frame further includes size information of the resource scheduled by the radio frame.
  • the size information of the resource scheduled by the radio frame is the radio used by the radio frame. Channel bandwidth information.
  • the radio frame further includes resource block granularity information, that is, size information of the resource block.
  • the radio frame may not include the resource block granularity information, and the granularity of the resource block adopts a preset value, such as a default size, and is, for example, a size agreed by the sender and the receiver.
  • the resource block may be, but not limited to, a frequency domain resource block, where the size information of the resource block refers to frequency domain size information, and the resource block may also be a time domain resource block, a time-frequency resource block, or the like.
  • the size information of a resource block refers to the size of the corresponding resource.
  • the radio frame further includes information about the number of STAs scheduled by the radio frame.
  • the number of STAs may not include the number of scheduled STAs, and the number of STAs adopts a preset value, such as a default number, and is, for example, a number agreed by the sender and the receiver.
  • the radio frame further includes indication information indicating whether all resource blocks are scheduled. It is also possible to schedule all by default.
  • the radio frame further includes information indicating that the resource allocation indication information included in the radio frame is uplink or downlink scheduling.
  • the radio frame further includes information indicating that the resource allocation indication information included in the radio frame is discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in an MPDU (Media Access Control Protocol Data Unit) of the radio frame.
  • MPDU Media Access Control Protocol Data Unit
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame may be the identifier information of the STA included in the resource allocation indication information. It's exactly the same.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiving STA of the data part carried by the radio frame may be related to the resource allocation indication
  • the identification information of the STA included in the information is completely different.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame may be the identifier information of the STA included in the resource allocation indication information.
  • the identifier information of the receiver STA of the data part carried by the radio frame may be the identifier information of the STA included in the resource allocation indication information.
  • Not identical may, but is not limited to, include any of the following:
  • the identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information; that is, the STA of the resource allocation indication information
  • the identification information does not include identification information of some or all of the receiving STAs
  • the identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
  • the radio frame further includes group identifier indication information.
  • the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
  • Embodiment 2 A method for indicating resource scheduling, as shown in FIG. 2, includes:
  • the STA receives the radio frame that includes the resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the quantity indication information of the resource block used by the STA. And location indication information of the resource block used by the STA; N ⁇ 1; wherein, the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: among them, The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1 ⁇ n ⁇ N; the position of the resource block used by the nth STA indicates the bits occupied by the information.
  • the number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
  • the STA determines, according to the resource allocation indication information, resources allocated to the STA. Piece.
  • the number of used Nth resource blocks indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
  • the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA.
  • the information is the default indication.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a MAC protocol data unit of the radio frame.
  • the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs
  • the indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and
  • the number of resource blocks used by the N STAs indicates that there is no other information between the information;
  • Determining, by the STA, the allocated resource block according to the resource allocation indication information includes:
  • the STA obtains the order of the STA according to the indication information of the resource indication order of each STA, and confirms the total number of resource blocks according to the indication information of the total number of resource blocks, and calculates according to the total number of resource blocks and the number of scheduled STAs.
  • the number of resource blocks used by each STA indicates the sum of the number of bits of the information, and the number of resource blocks allocated to the STA is obtained according to the number of resource blocks used by the STA; the sum of the number of bits is found.
  • the location of the resource block used by the N STAs indicates the start position of the information, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication information of the resource block used by the STA is obtained, according to the STA.
  • the location indication information of the used resource block learns the location of the resource block allocated to the STA.
  • the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
  • the indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  • the radio frame further includes quantity information of the scheduled STAs.
  • the STA confirms the number of scheduled STAs according to the quantity information; the number of scheduled STAs may also be a preset value, or may be confirmed according to the number of identification information.
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to: And calculating the total number of resource blocks by the size information of the scheduled resources;
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources
  • the size information calculates the total number of resource blocks.
  • the size information of the scheduled resource may be a preset value, and the indication information of the total number of resource blocks includes a resource scheduling granularity; and the total number of the scheduled resource blocks may be a preset value, and the wireless frame may not be Includes indications of the total number of resource blocks.
  • the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
  • the radio frame includes downlink or uplink OFDMA resource allocation indication information, and the resource allocation indication information is located in the radio frame data domain MPDU, and the four STAs are in random order. If the order is in the order of STA1, STA2, STA3, and STA4, the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs.
  • the AP uses a conventional OFDM technology to transmit a radio frame.
  • the radio frame format is identifiable by a conventional WLAN device (a device conforming to the IEEE802.11a/g/n/ac standard), and the resource scheduling granularity is pre-defined by the protocol, and each The 20MHz bandwidth is divided into nine frequency domain resource blocks. Assume that the AP uses a 40 MHz bandwidth, and a total of 18 frequency domain resource blocks can be allocated.
  • the resources allocated by the AP to the four STAs are as shown in FIG.
  • the initial number of the 18 frequency domain resource blocks is assumed to be 1 to 18, where The frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource blocks numbered 1, 2, 4, and 6. Assigned to STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
  • the scheduling AP performs resource allocation indication according to the order of STA1, STA2, STA3, and STA4.
  • the AP sets up a radio frame for transmission, and the resource allocation indication information is located in the radio frame data field.
  • the radio frame MAC frame header indicates that the type of the radio frame is a resource scheduling frame, and the resource is indicated in the radio frame MPDU.
  • the allocation indication information is uplink resource allocation indication information; and the resource allocation indication information includes an indication that the current resource allocation is a discrete resource allocation manner;
  • the resource allocation indication information includes an identifier AID of the four STAs or a processed identifier PAID, which are sequentially arranged in the order of STA1, STA2, STA3, and STA4.
  • the resource allocation indication information includes the number indication information of the resource blocks used by the four STAs, and is sequentially arranged in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA1, and the number of occupied bits is That is, 5 bits, the number of allocations to STA1 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA1 is 00100;
  • the number of resource blocks used by STA2 indicates information, and the number of occupied bits is That is, 4 bits, the number of allocations to STA2 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA2 is 0100;
  • the number of resource blocks used by STA3 indicates information, and the number of occupied bits is That is, 4 bits, the number of allocations to STA3 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA3 is 0100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 3 bits, the number of allocations to STA4 in this scheduling is 6 frequency domain resource blocks, so the number of resource blocks used by STA4 is 110;
  • the resource block number indication information sub-field in the radio frame including the number indication information of the resource blocks used by the four STAs, specifically: 0010001000100110;
  • the resource allocation indication information includes location indication information of the resource blocks used by the four STAs, and is sequentially arranged according to the identifier indication order of the four STAs, and each STA resource block location is indicated by a bitmap format:
  • the first is the location indication information of the resource block used by STA1, and the maximum number of the resource block occupied by STA1 is 17, then 17 bits are required, and the location indication information of the resource block used by STA1 is: 0000 0001 0010 0010 1;
  • the location indication information of the resource block used by STA2 is: 000000000 0011 11;
  • the location indication information of the resource block used by STA3 is: 1101 01;
  • the last is the location indication information of the resource block used by STA4.
  • the number is renumbered, and the remaining 6 resource blocks are allocated to STA4.
  • the maximum number of STA4 allocated in the new number is The resource block number is 6, then 6 bits are required, and the location indication information of the resource block used by STA4 is: 1111 11;
  • the resource block location indication information subfield in the radio frame including the location indication information of the resource blocks used by the four STAs, specifically 0000 0001 0010 0010 10000 00000011 111101 011111 11;
  • the radio frame also carries other signaling indication information, such as bandwidth information used for radio frame transmission,
  • the number information of the scheduled STAs, etc., the location indication information of the resource blocks used by the four STAs is located after the number indication information of the resource blocks used by the four STAs, and is placed after the other indication information of the signaling domain.
  • the STA1, the STA2, the STA3, and the STA4 After receiving the radio frame, the STA1, the STA2, the STA3, and the STA4 obtain the resource allocation indication information of the current transmission by parsing the radio frame, and learn that the resource allocation indication information is the uplink resource allocation indication information;
  • the STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the first bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned.
  • the bandwidth used in this time is 40MHz, and the total number of schedulable resource blocks is 18.
  • the number of resource blocks used by STA1 indicates the number of bits used by the information.
  • the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained;
  • the second STA resource block number is used to indicate that the number of bits used is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 4 resource blocks;
  • the third STA resource block number is used to indicate that the number of bits used is That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks;
  • the fourth STA resource block number is used to indicate that the number of bits used is That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and STA1 extracts information in the resource block position indication information sub-domain, and finds the first four 1s. That is, 0000 0001 0010 0010 1 is obtained, and the number of the allocated resource blocks is 8,
  • the STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the second bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned.
  • the bandwidth used in this time is 40MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and it is learned that the first STA is allocated to 4 resource blocks; the second STA is used to indicate the number of resource blocks used by itself.
  • the number of bits is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the fourth STA resource block number is used to indicate that the number of bits used is That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and STA2 extracts information in the resource block position indication information sub-domain, and the first STA is used.
  • the assigned resource block numbers are 13, 14, 16, and 18;
  • the STA3 first learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the third bit of the four STAs according to the identifier sequence; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 4 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • Number is That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the fourth STA is measured to indicate that the number of bits used by the information is That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA3 performs information extraction in the resource block number indication information sub-domain, and the first and the first are eliminated.
  • the search for 4 1s is continued, and 1101 is obtained, and the resources used by the first and second STAs are combined.
  • the location of the block you can know that the allocated resource block number is 1, 2, 4, 6;
  • the STA4 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the third bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned.
  • the bandwidth used in this time is 40MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 4 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • Number is That is, 3 bits, and it is known that the resource blocks are allocated to 6 resource blocks, and thus the number of resource block indication information sub-domains is 16 bits in total, and then the start position of the resource block position indication information sub-domain is known, and STA4 performs the resource block number indication information sub-domain.
  • Information extraction eliminating the position indication information of the resource block used by the first, second, and third STAs 0000 0001 0010 0010 10000 0000 0011 111101 01, continue to find the sixth one, 1111 11, combined with The location of the resource blocks used by one, the second, and the third STA can be known to be assigned resource block numbers of 3, 5, 7, 9, 10, and 12.
  • the downlink OFDMA scheduling is performed, and the resource allocation indication information is located in the radio frame physical layer signaling domain, and the identifier information of the four STAs is arranged in ascending order according to the maximum number of the allocated resource blocks.
  • the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs.
  • the AP uses the OFDMA technology to transmit data to STA1 to STA4.
  • the resource scheduling granularity is pre-defined by the protocol.
  • Each 20 MHz bandwidth is divided into 9 frequency domain resource blocks.
  • the AP uses a 40 MHz bandwidth for the current transmission.
  • a total of 18 frequency domain resource blocks can be allocated.
  • the resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where The frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource blocks numbered 1, 2, 4, and 6. Assigned to STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
  • the scheduling AP is scheduled in ascending order according to the maximum number of resource blocks allocated by the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource).
  • the resource allocation indication is performed in the order of block number 18);
  • the AP sets up a radio frame for transmission.
  • the resource allocation indication information is in the physical layer signaling domain of the radio frame.
  • the data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer of the frame are Make the resource allocation indication information in the domain consistent;
  • the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
  • the physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA3, and the number of occupied bits is That is, 5 bits, the number of frequency domain resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 4 bits, the number of frequency domain resource blocks allocated to STA4 in this scheduling is 6, so the number of resource blocks used by STA4 is 0110;
  • the number of resource blocks used by STA1 indicates information, and the number of occupied bits is That is, 3 bits, the number of frequency domain resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
  • the number of resource blocks used by STA2 indicates that the remaining number of frequency domain resource blocks that can be allocated to STA2 is four, and 4 is 2 to the power of 2, so the number of occupied bits is 2+1, that is, 3 bits. Therefore, the number of resource blocks used by STA2 is 100;
  • the resource block number indication information sub-domain in the radio frame including: the quantity indication information of the resource blocks used by the four STAs, specifically 001000110100100;
  • the location indication information of the resource block used by the four STAs is sequentially indicated according to the identifier indication sequence of the four STAs, and the location indication information of the resource block used by each STA is in the bitmap format.
  • the first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
  • the location indication information of the resource block used by STA4 is: 1110 1101;
  • the location indication information of the resource block used by STA1 is: 1100 101;
  • the last is the location indication information of the resource block used by STA2, and after re-numbering the 14 resource blocks occupied by STA1, STA3, and STA4, the remaining 6 resource blocks are allocated to the maximum resource allocated by STA4 in STA4 in the new number.
  • the block number is 4, then 4 bits are required, and the location indication information of the resource block used by STA2 is: 1111;
  • the resource block location indication information subfield in the radio frame is finally obtained according to the foregoing sequence, and includes: location indication information of resource blocks used by the four STAs: specifically, 1101 011110 110111001011111; a total of 25 bits;
  • the radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
  • STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
  • the STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the maximum number of resource blocks that can be scheduled is 40, and the number of the first STA, that is, the number of resource blocks used by the first STA, indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits,
  • the STA4 receives the radio frame, firstly knows that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the second bit of the four STAs; the bandwidth of the current use is obtained by using the radio frame bandwidth indication information. 40MHz, the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • Number is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the current resource allocation is 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits, and thus the number of resource block indication information sub-domains is 15 bits in total, and the resource block position indication information sub-domain is obtained.
  • the starting position of the STA4 is used for information extraction in the resource block number indication information sub-domain, and the location indication information of the resource block used by the first STA is removed (the first four 1s), and the first six 1s are continuously searched, and 1110 1101 is obtained. Obtaining that the assigned resource blocks are numbered 3, 5, 7, 9, 10, 12;
  • the STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the third position of the four STAs.
  • the bandwidth of the current use is obtained by using the radio frame bandwidth indication information.
  • the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • STA1 Instructing the start position of the information sub-domain, STA1 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s, and obtains 1100 101, knowing that the allocated resource block numbers are 8, 11, 15, and 17;
  • the STA2 receives the radio frame, firstly knows that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs; the bandwidth of the current use is obtained by using the radio frame bandwidth indication information.
  • the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of bits used for measuring the number of resource blocks used by the second STA is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby learning the resources.
  • the block location indicates the start position of the information subfield, and the STA2 extracts the information in the resource block number indication information subfield, and eliminates the location indication information of the resource block used by the first, second, and third STAs, and continues to find the first 4 One is 1, and 1111 is obtained. It is known that the allocated resource block numbers are 13, 14, 16, and 18.
  • the present embodiment is a downlink OFDMA scheduling, where the resource allocation indication information is located in the radio frame physical layer signaling domain, and the identification information of the four STAs is scheduled in ascending order according to the assigned maximum number of resource blocks.
  • the latter STA resource location bitmap does not need to be indicated.
  • the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs.
  • the AP uses DL OFDMA technology to send data to STA1 to STA4.
  • the resource scheduling granularity is pre-defined by the protocol.
  • Each 20MHz bandwidth is divided into 9 frequency domain resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission.
  • a total of 18 frequency domain resource blocks can be allocated and all resource blocks are allocated.
  • the resources allocated by the AP to the four STAs are as shown in Figure 3. Assume 18 frequency domain resources.
  • the initial number of the block is 1 to 18, and the frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are assigned to STA2, numbered 1.
  • the frequency domain resource blocks of 2, 4, and 6 are allocated to STA3, and the frequency domain resource blocks numbered 3, 5, 7, 9, 10, and 12 are allocated to STA4.
  • the scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
  • the AP sets up a radio frame for transmission.
  • the scheduling indication information is in the physical layer signaling domain of the radio frame.
  • the data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer signaling of the current frame.
  • the resource allocation indication information in the domain is consistent;
  • the physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA3, and the number of occupied bits is That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 indicates information 00100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
  • the number of resource blocks used by STA1 indicates information, and the number of occupied bits is That is, 3 bits, the number of resource blocks allocated to the STA1 resource block is 4, and the number of resource blocks used by STA1 is 100.
  • the resource block number indication information sub-field in the radio frame including: the quantity indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
  • the first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
  • the location indication information of the resource block used by STA4 is: 1110 1101;
  • the resource block location indication information subfield in the radio frame including the location indication information of the resource blocks used by the four STAs, specifically 1101 011110 11011100 101; a total of 21 bits;
  • the radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
  • STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
  • the STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18.
  • the number of bits used by the first STA which is the number of resource blocks used by the first STA, is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained;
  • the number of bits used for measuring the number of the second STA resource block used is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks;
  • the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA3 performs information extraction in the resource block number indication information sub-domain, and the first four 1s are found. Obtaining 1101 01, knowing that the allocated resource block numbers are 1, 2, 4, and 6;
  • the STA4 After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA4 performs information extraction in the resource block number indication information sub-domain, and the resource block used by the first STA is removed.
  • the location indication information continue to find the first 6 ones, get 11101101, and know that the allocated resource block numbers are 3, 5, 7, 9, 10, 12;
  • the STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA1 performs information extraction in the resource block number indication information sub-domain, and the first and second STAs are used.
  • the location indication information of the resource block continue to find the first 4 1s, get 1100101, and know that the allocated resource block numbers are 8, 11, 15, and 17;
  • the STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, it is not necessary to indicate the last STA, that is, its own resource.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the position indication of the resource block used by the first, second, and third STAs is removed.
  • Information, the remaining resource blocks are the resources that are dispatched to themselves.
  • the present embodiment is a downlink OFDMA scheduling.
  • the resource allocation indication information is located in the radio frame physical layer signaling domain, and the four STA identification information are arranged in ascending order according to the largest number of the allocated resource blocks, and the last STA resource location bitmap does not need to be indicated.
  • the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs.
  • the AP uses DL OFDMA technology to send data to STA1 to STA4.
  • the resource scheduling granularity is pre-defined by the protocol.
  • Each 20MHz bandwidth is divided into 9 frequency domain resource blocks.
  • the AP uses 40MHz bandwidth, a total of 18 frequency domain resource blocks can allocate resources allocated by the AP to the four STAs as shown in Figure 3: Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where the number The frequency domain resource blocks of 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource block numbers numbered 1, 2, 4, and 6 are allocated. For STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
  • the scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
  • the radio frame physical layer signaling field includes whether all resource blocks in the bandwidth of the current scheduling are allocated indication information; if the indication information indicates that all resource blocks are allocated, the resource allocation indication information does not need to include the last scheduled one. The number of resource blocks used by the STA and the location indication information. If it is not indicated that all resource blocks are allocated, the number and location indication information of the resource blocks used by the last scheduled STA still need to be included; Blocks are all assigned to the STA;
  • the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
  • the physical layer signaling domain of the radio frame includes the quantity indication information of the resource blocks used by the four STAs, and is sequentially arranged in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA3, and the number of occupied bits is That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
  • the number of resource blocks used by STA1 indicates information, and the number of occupied bits is That is, 3 bits, the number of resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
  • the radio frame physical layer signaling domain indicates that all resource blocks are allocated this time, so there is no need to indicate the number of resource block indication information used by STA2, and the default is all remaining resource blocks;
  • the resource block number indication information subfield in the radio frame including the number indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
  • the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
  • the location indication information of the resource block used by STA4 is: 1110 1101;
  • the location indication information of the resource block used by STA1 is: 1100 101;
  • the radio frame physical layer signaling domain indicates that all resource blocks are allocated this time, so it is not necessary to indicate the resource block location information allocated by STA2, and the default is all remaining resource blocks;
  • Obtaining the resource block location indication information subfield in the radio frame according to the foregoing sequence including: location indication information of the resource block used by the four STAs, specifically, 1101 011110 11011100 101; a total of 21 bits;
  • the radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
  • STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
  • the STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18.
  • the number of bits used by the first STA which is the number of resource blocks used by the first STA, is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained;
  • the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks;
  • the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the resource allocation indication information of the last STA; thus, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain
  • the STA4 After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the resource allocation indication information of the last STA; thus, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the STA4 performs information extraction in the resource block number indication information sub-domain.
  • the position indication information of the resource block used by the first STA is removed, and the first six 1s are continuously searched, and 1110 1101 is obtained, and the allocated resource block numbers are 3, 5, 7, 9, 10, and 12;
  • the STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the resource allocation indication information of the last STA so far, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA1 performs information extraction in the resource block number indication information sub-domain, and the information is removed.
  • the resource block location indication information of one and the second STA is continued, and the first four 1s are continuously searched, and 1100 101 is obtained, and the allocated resource block numbers are 8, 11, 15, and 17;
  • the STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the last STA, that is, its own resource allocation indication information; thus, the resource block number indication information sub-domain is a total of 12 bits,
  • the physical layer signaling domain includes resource allocation indication information is an uplink or downlink OFDMA scheduling indication, the resource allocation indication information is located in a radio frame physical layer signaling domain, and four STA identifiers are according to the allocated resources.
  • the block maximum number is in ascending order, and the data in the radio frame data field is the data of other STAs.
  • the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs.
  • the AP sends data to one STA or multiple STAs other than STA1 to STA4, and simultaneously sends resource scheduling allocation information to STA1 to STA4.
  • the resource scheduling granularity is pre-defined by the protocol, and each 20 MHz bandwidth is divided into 9 frequency resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission. A total of 18 frequency resource blocks can be allocated.
  • the resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where the number is The frequency domain resource blocks of 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource block numbers numbered 1, 2, 4, and 6 are allocated. For STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
  • the AP sets up a radio frame for transmission, and the scheduling indication information is sent to STA1 to STA4 in the physical layer signaling domain of the radio frame, and the data domain part of the radio frame carries data of other STAs, which is assumed to be STA5;
  • the physical layer signaling domain of the radio frame includes the resource allocation indication information as the uplink resource allocation indication information or the downlink resource allocation indication information, and assumes that the current resource allocation indication information is the uplink resource allocation indication information;
  • the scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
  • the physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA3, and the number of occupied bits is That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
  • the number of resource blocks used by STA1 indicates information, and the number of occupied bits is That is, 3 bits, the number of resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
  • the number of resource blocks used by STA2 indicates information.
  • the remaining number of resource blocks that can be allocated to STA2 is four, and 4 is 2 to the power of 2, so the number of occupied bits is 2+1, that is, 3 bits.
  • the number of resource blocks used by STA2 indicates that the information is 100.
  • the resource block number indication information subfield in the radio frame including the number indication information of the resource blocks used by the four STAs, specifically 001000110100100;
  • the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
  • the number is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
  • the location indication information of the resource block used by STA4 is: 1110 1101;
  • the location indication information of the resource block used by STA1 is: 1100 101;
  • the last is the location indication information of the resource block used by STA2, and after re-numbering the 14 resource blocks occupied by STA1, STA3, and STA4, the remaining 6 resource blocks are allocated to the maximum resource allocated by STA4 in STA4 in the new number.
  • the block number is 4, then 4 bits are required, and the location indication information of the resource block used by STA2 is: 1111;
  • the resource block location indication information subfield in the radio frame including the location indication information of the resource block used by the four STAs, specifically, 1101 011110 11011100 1011111; a total of 25 bits;
  • the radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
  • the STA1, the STA2, the STA3, and the STA4 After receiving the radio frame, the STA1, the STA2, the STA3, and the STA4, by analyzing the radio frame physical layer signaling domain, learn that the current OFDMA transmission resource allocation information is the uplink resource allocation indication information;
  • the STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18.
  • the number of bits used by the first STA which is the number of resource blocks used by the first STA, is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained;
  • the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks;
  • the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks;
  • the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits, and thus the number of resource block indication information sub-domains is 15 bits in
  • the STA4 After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18.
  • the number of resource blocks used by the first STA indicates that the number of bits used by the information is 5 bits, and the first 5 are extracted from the resource block number indication information subfield.
  • Bit knowing that the first STA is allocated to 4 resource blocks; measuring the number of bits of the second STA, that is, the number of resource blocks used by itself, indicates that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and thus the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby obtaining the resource block position.
  • STA4 Instructing the start position of the information sub-domain, STA4 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first STA, and continues to find the first six ones, and obtains 11101101, and obtains the allocation.
  • the resource block numbers are 3, 5, 7, 9, 10, 12;
  • the STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18.
  • the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • Number is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and thus the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby obtaining the resource block position.
  • STA1 Instructing the start position of the information sub-domain, STA1 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s, and obtains 1100 101, knowing that the allocated resource block numbers are 8, 11, 15, and 17;
  • the STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs.
  • the bandwidth of the current use is learned by the radio frame bandwidth indication information.
  • the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the number of the resource blocks used by the fourth STA which is the number of bits used by the fourth STA, is 3 bits, and the number of resource blocks indicates that the information sub-domain is a total of 15 bits. Knowing the start position of the resource block location indication information subfield, STA2 performs information extraction in the resource block number indication information subfield, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s. That is, 1111, it is known that the allocated resource block numbers are 13, 14, 16, and 18;
  • the STA5 receives the radio frame and parses the resource allocation indication information in the physical layer signaling domain of the radio frame, and is an uplink resource allocation indication information, but does not include its own resource allocation indication information, and parses other information in the signaling domain.
  • the domain contains its own data, and STA5 continues to receive the data portion of the resolved radio frame.
  • the present embodiment is based on the implementation example three downlink OFDMA scheduling, where the resource allocation indication information is located in the radio frame physical layer signaling domain, and the group address is used to indicate four STAs, and the location adjustment sequence indication information is included, and the last STA resource location bitmap does not need to be indicated;
  • the resource block is a frequency domain resource block, and the sender is an AP.
  • the AP forms a BSS with multiple non-AP STAs. After the non-AP STA joins the BSS, if the non-AP STA supports multi-user transmission or reception processing, such as MU-MIMO, OFDMA, etc., the AP may assign one or more group numbers to the non-AP STA.
  • multi-user transmission or reception processing such as MU-MIMO, OFDMA, etc.
  • the AP uses DL OFDMA technology to send data to STA1 to STA4.
  • the resource scheduling granularity is pre-defined by the protocol.
  • Each 20MHz bandwidth is divided into 9 frequency resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission.
  • a total of 18 frequency resource blocks can be allocated and all resource blocks are allocated.
  • the resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that 18 frequency domain resource blocks are assumed.
  • the initial number is 1 to 18, and the frequency domain resource blocks numbered 8, 11, 15, and 17 are assigned to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are assigned to STA2, numbered 1, 2
  • the frequency domain resource blocks of 4, 6 are allocated to STA3, and the frequency domain resource blocks numbered 3, 5, 7, 9, 10, and 12 are allocated to STA4.
  • the scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
  • the AP sets up a radio frame for transmission.
  • the scheduling indication information is in the physical layer signaling domain of the radio frame.
  • the data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer signaling of the current frame.
  • the resource allocation indication information in the domain is consistent;
  • STA1, STA2, STA3, and STA4 are in the same group, and the group ID is the group number is GID1.
  • the order of the four STAs in the group is that STA1 is in the first position and STA2 is in the second position.
  • STA3 is in the third position and STA4 is in the fourth position;
  • the physical layer signaling domain of the radio frame includes group identification information, GID1, and includes the STA resource allocation indication information indicating sequence and its positional order adjustment information in the group; and the adjusted resource allocation indication based on the location information in the group.
  • the information indication order is STA3, STA4, STA1, STA2;
  • the physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
  • the first is the number of resource blocks used by STA3, and the number of occupied bits is That is, 5 bits, the number of allocations to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
  • the number of resource blocks used by STA4 indicates information, and the number of occupied bits is That is, 4 bits, the number of allocations to STA4 is 6 in this scheduling, so the number of resource blocks used by STA3 is 0110;
  • the number of resource blocks used by STA1 indicates information, and the number of occupied bits is That is, 3 bits, the number of allocations to STA1 is 4, and the number of resource blocks used by STA3 is 100.
  • the resource block number indication information subfield in the radio frame including the number indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
  • the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
  • the first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
  • the location indication information of the resource block used by STA4 is: 1110 1101;
  • the location indication information of the resource block used by STA1 is the location indication information of the resource block used by STA1, and the STA3 and STA4 are excluded.
  • the 10 resource blocks are renumbered, as shown in Figure 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 bits are required, and the location indication information of the resource block used by STA3 is: 1100 101;
  • the resource block location indication information subfield in the radio frame including the location indication information of the resource blocks used by the four STAs, specifically 1101 011110 11011100 101; a total of 21 bits;
  • the radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
  • STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
  • the STA3 knows that the resource allocation indication information of the STA is located in the first position of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its in-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of bits used by the first STA, that is, the number of resource blocks used by the first STA is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA3 performs information extraction in the resource block number indication information sub-domain, and the first four 1s are found. Obtaining 1101 01, knowing that the allocated resource block numbers are 1, 2, 4, and 6;
  • the STA4 receives the radio frame, and determines that the resource allocation indication information of the UE is located in the second bit of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • Number is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA4 performs information extraction in the resource block number indication information sub-domain, and the resource block used by the first STA is removed.
  • the location indication information continue to find the first 6 ones, get 1110 1101, and know that the allocated resource block numbers are 3, 5, 7, 9, 10, 12;
  • the STA1 receives the radio frame, and determines that the resource allocation indication information of the UE is located in the third bit of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information.
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA1 performs information extraction in the resource block number indication information sub-domain, and the first and second STA3 are eliminated.
  • the position indication information of the resource block used by the STA4 is continued, and the first four 1s are continuously searched, and 1100 101 is obtained, and the allocated resource block numbers are 8, 11, 15, and 17;
  • the STA2 receives the radio frame, and obtains the resource allocation indication information of the fourth STA by the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group location order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third S
  • the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the position indication of the resource block used by the first, second, and third STAs is removed.
  • Information, the remaining resource blocks are the resources that are dispatched to themselves.
  • Embodiment 3 A resource scheduling indication device is disposed in a sender device, as shown in FIG. 8, and includes:
  • the generating module 81 is configured to generate resource allocation indication information
  • the sending module 82 is configured to send a radio frame including the resource allocation indication information to the receiver;
  • the resource allocation indication information includes resource allocation indication information of the N station STAs; the resource allocation indication information of each STA includes at least: the quantity indication information of the resource block used by the STA and the location indication information of the resource block used by the STA; N ⁇ 1;
  • the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: among them, The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1 ⁇ n ⁇ N;
  • the number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite
  • the number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the generating, by the generating module 81, the resource allocation indication information includes:
  • the generating module 81 sequentially generates resource allocation indication information for the N STAs. Each time, in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA meets:
  • the maximum number R m-max of the resource blocks allocated by the STA is the minimum value among the maximum numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
  • the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
  • the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
  • the location indication information of the resource block used by the N STAs is arranged after all other indication information.
  • the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the resources used by the N STAs The number of blocks indicates that there is no other information between the messages.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource of the Nth STA.
  • the allocation indication information is the default indication information.
  • the radio frame further includes size information of resources scheduled by the radio frame.
  • the radio frame further includes resource block granularity information, and/or quantity information of STAs scheduled by the current radio frame.
  • the radio frame further includes indication information indicating whether all resource blocks are scheduled.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is exactly the same.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is completely different.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is not exactly the same.
  • the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
  • the identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
  • the identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
  • the radio frame further includes group identification indication information of the STA.
  • the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
  • Embodiment 4 A resource scheduling indication device is configured in the STA, as shown in FIG. 9, and includes:
  • the receiving module 91 is configured to receive a radio frame that includes resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the resource block used by the STA The quantity indication information and the location indication information of the resource block used by the STA; N ⁇ 1; wherein the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is: among them, The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1 ⁇ n ⁇ N; the position of the resource block used by the nth STA indicates the bits occupied by the information.
  • the number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
  • the processing module 92 is configured to determine, according to the resource allocation indication information, a resource block allocated to the STA where the STA is located.
  • the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
  • the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  • the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA.
  • the information is the default indication.
  • the radio frame further includes any one or any of the following information:
  • the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information
  • the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  • the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  • the resource allocation indication information further includes indication information of a total number of resource blocks allocated by the current radio frame, and indication information of a resource indication order of each STA, where the resource blocks used by the N STAs are used.
  • the location indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs. And having no other information between the number of resource blocks used by the N STAs;
  • the processing module 92 determines, according to the resource allocation indication information, that the resource block allocated to the STA is:
  • the processing module 92 learns the order of the STAs according to the indication information of the resource indication order of each STA; and confirms the total number of resource blocks according to the indication information of the total number of resource blocks scheduled by the radio frame, according to the total number of resource blocks and
  • the number of the scheduled STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STAs is obtained according to the number of resource blocks used by the STAs;
  • the sum of the number of bits finds the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STA before the STA is removed, and the location of the resource block used by the STA is obtained.
  • the indication information is used to know the location of the resource block allocated to the STA according to the location indication information of the resource block used by the STA.
  • the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
  • the indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  • the radio frame further includes quantity information of the scheduled STAs.
  • the processing module 92 may confirm the number of scheduled STAs according to the quantity information; the number of scheduled STAs may also be a preset value, or may be confirmed according to the number of identification information.
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources, and And the total number of the resource blocks is determined according to the resource scheduling granularity and the size information of the scheduled resources, and the total number of resource blocks is calculated according to the resource scheduling granularity and the size information of the scheduled resources;
  • the indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources
  • the size information calculates the total number of resource blocks.
  • the size information of the scheduled resource may be a preset value, and the indication information of the total number of resource blocks includes a resource scheduling granularity; and the total number of the scheduled resource blocks may be a preset value, and the wireless frame may not be Includes indications of the total number of resource blocks.
  • the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
  • Embodiment 5 A computer readable storage medium storing computer executable instructions for performing the method of Embodiment 1 or Embodiment 2 above.
  • the embodiment of the invention provides a resource scheduling indication scheme, which can support flexible resource scheduling allocation, and can greatly reduce the overhead of resource allocation indication information, thereby improving indication efficiency and improving network transmission efficiency.

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Abstract

A resource scheduling indication method and apparatus. The method comprises: generating resource allocation indication information; and sending a radio frame comprising the resource allocation indication information to a receiving party, the resource allocation indication information comprising resource allocation indication information of N STAs. Resource allocation indication information of each STA comprises: indication information about a quantity of resource blocks used by the STA and indication information about locations of the resource blocks used by the STA. A quantity of bits occupied by indication information about a quantity of resource blocks used by an nth STA is shown in an expression I. Rn indicates a quantity of resource blocks that have not been allocated. A quantity of bits occupied by indication information about locations of the resource blocks used by the nth STA is equal to a maximum number of numbers of resource blocks allocated to the nth STA, and is indicated in a bitmap mode. Numbers of resource blocks are numbers from 1 to Rn provided again to Rn resource blocks that have not been allocated.

Description

一种资源调度的指示方法及装置Method and device for indicating resource scheduling 技术领域Technical field
本文涉及但不限于通信领域,尤其涉及一种资源调度的指示方法及装置。This document relates to, but is not limited to, the field of communications, and in particular, to a method and apparatus for indicating resource scheduling.
背景技术Background technique
目前,在无线网络领域,WLAN(Wireless Local Area Networks,无线局域网)快速发展,IEEE(Institute of Electrical and Electronics Engineers,电气和电子工程师协会)工业规范802.11组,先后定义了IEEE 802.11a/b/g/n/ac等一系列标准来满足不断增长的通信需求,这些标准多是致力于改进802.11的技术以提高最大物理层传输速率或网络最大吞吐量。例如,802.11ac技术通过引入更大的信道带宽、更高阶的MIMO(Multiple-Input Multiple-Output,多输入多输出)等技术,数据速率能够达到1Gbps以上。但是,随着网络密度的增加及用户数目的增多,WLAN网络的效率会出现明显下降的趋势,网络效率的问题不能单纯通过提高传输速率解决。因此,IEEE标准组织成立了TGax任务小组致力于解决WLAN网络效率问题。Currently, in the field of wireless networks, WLAN (Wireless Local Area Networks) has developed rapidly. The IEEE (Institute of Electrical and Electronics Engineers) Industrial Specification 802.11 group has defined IEEE 802.11a/b/g. A series of standards such as /n/ac to meet the growing demand for communication, many of which are dedicated to improving 802.11 technology to increase the maximum physical layer transmission rate or network maximum throughput. For example, 802.11ac technology can achieve data rates of more than 1 Gbps by introducing technologies such as larger channel bandwidth and higher-order MIMO (Multiple-Input Multiple-Output). However, as the network density increases and the number of users increases, the efficiency of the WLAN network will decrease significantly. The problem of network efficiency cannot be solved simply by increasing the transmission rate. Therefore, the IEEE Standards Organization established the TGax Task Force to address WLAN network efficiency issues.
WLAN中,一个AP(access point,接入点站点)以及与该AP相关联的多个non-AP STA(non-AP Station,非接入点站点)组成了一个BSS(basic service set,基本服务集)。In the WLAN, an AP (access point, access point site) and a plurality of non-AP STAs (non-AP stations) associated with the AP form a BSS (basic service set). set).
在当前主流的WLAN标准(IEEE 802.11a/g/n/ac)中,物理层采用OFDM(Orthogonal Frequency Division Multiple,正交频分复用)调制技术,每一次通信使用的无线信道带宽为基本带宽20MHz的整数倍(20/40/80/160MHz),但由于无线信道存在一个相干带宽的固有属性,且其相干带宽通常远小于20MHz,因而在一次通信中,收发方使用完整的20MHz以及更大带宽的无线信道,会造成频谱利用率低下。In the current mainstream WLAN standard (IEEE 802.11a/g/n/ac), the physical layer uses OFDM (Orthogonal Frequency Division Multiple) modulation technology, and the bandwidth of the wireless channel used for each communication is the basic bandwidth. Integer multiple of 20MHz (20/40/80/160MHz), but since the wireless channel has an inherent property of coherent bandwidth, and its coherent bandwidth is usually much smaller than 20MHz, the transceiver uses a full 20MHz and larger in one communication. Bandwidth wireless channels can cause low spectrum utilization.
TGax任务小组引入OFDMA(Orthogonal Frequency Division Multiple Access,正交频分多址接入)作为下一代WLAN标准的主要技术,以此来提高频谱利用率。目前标准研究进展中,20MHz带宽被分割成多个小带宽,AP 可以同时跟多个非接入点站点通信,每个非接入点站点可以使用一个或者多个小带宽,非接入点站点使用几个以及哪几个小带宽需要AP发相关的控制信息来指示。The TGax task force introduced OFDMA (Orthogonal Frequency Division Multiple Access) as the main technology of the next-generation WLAN standard to improve spectrum utilization. In the current standard research progress, the 20MHz bandwidth is divided into multiple small bandwidths, AP It can communicate with multiple non-access point sites at the same time. Each non-access point site can use one or more small bandwidths. The non-access point sites use several and which small bandwidths require the AP to send relevant control information. Instructions.
在WLAN中,指示信息通常使用固定的比特个数,并且采用bitmap(位图)的方式,如果在802.11ax标准中,资源指示仍然采用此模式,其占用的比特数量将会非常多,特别是在信道带宽大于20MHz以及STA(站点)数较多的情况下;例如每个20MHz信道带宽分成9个可调度的小带宽,在80MHz信道带宽下可调度的独立小带宽有36个,如果采用简单的bitmap模式即每一个资源块占用一个比特位,若存在4个STA,每个STA将使用36个比特,共计144个比特,而且WLAN中为了提高调度等控制信息传输的可靠性,通常使用较低速率的编码调制方式MCS(Modulation and Coding Scheme,调制与编码策略)进行传输,这就使得指示信息占用的传输时间相对数据传输时间的比例提高,进而使得传输效率降低。In the WLAN, the indication information usually uses a fixed number of bits and uses a bitmap. If the resource indication still uses this mode in the 802.11ax standard, the number of bits occupied will be very large, especially In the case where the channel bandwidth is greater than 20 MHz and the number of STAs (sites) is large; for example, each 20 MHz channel bandwidth is divided into 9 schedulable small bandwidths, and 36 independent schedulable bandwidths are available under the 80 MHz channel bandwidth, if simple The bitmap mode means that each resource block occupies one bit. If there are 4 STAs, each STA will use 36 bits for a total of 144 bits, and in order to improve the reliability of control information transmission such as scheduling, the WLAN usually uses The low-rate coding modulation mode MCS (Modulation and Coding Scheme) performs transmission, which increases the ratio of the transmission time occupied by the indication information to the data transmission time, thereby reducing the transmission efficiency.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
本发明实施例提供一种资源调度的指示方法及装置,可以解决在仍然采用bitmap模式的情况下,降低指示资源调度情况的比特的数量的问题。The embodiment of the invention provides a method and a device for indicating resource scheduling, which can solve the problem of reducing the number of bits indicating the resource scheduling situation while still using the bitmap mode.
为了解决上述问题,采用如下技术方案。In order to solve the above problems, the following technical solutions are adopted.
一种资源调度的指示方法,包括:A method for indicating resource scheduling includes:
发送方生成资源分配指示信息;The sender generates resource allocation indication information;
所述发送方发送包含所述资源分配指示信息的无线帧给接收方;Transmitting, by the sender, a radio frame that includes the resource allocation indication information to a receiver;
所述资源分配指示信息包括N个站点STA的资源分配指示信息;每个STA的资源分配指示信息包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;The resource allocation indication information includes resource allocation indication information of the N stations; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the location indication information of the resource block used by the STA; ≥1;
第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000001
表示上取整运算,Rn表示去除分配给前n-1个STA的资源 块后尚未分配的资源块数量;1≤n≤N;
The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000001
Indicates a rounding operation, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1 ≤ n ≤ N;
第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite The number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述发送方生成资源分配指示信息包括:Optionally, the sending the resource allocation indication information by the sender includes:
依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。Generating resource allocation indication information to the N STAs in sequence; each time in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies: allocated for the STA The maximum number R m-max of the resource block is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
可选地,所述无线帧还包含所述N个STA的标识信息,且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。Optionally, the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
可选地,在所述无线帧中,所述N个STA使用的资源块的数量指示信息和/或位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。Optionally, in the radio frame, the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is arranged after all other indication information.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the resources used by the N STAs The number of blocks indicates that there is no other information between the messages.
可选地,当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA. The information is the default indication.
可选地,所述无线帧还包含本无线帧调度的资源的大小信息。Optionally, the radio frame further includes size information of resources scheduled by the radio frame.
可选地,所述无线帧还包含资源块粒度信息,和/或本无线帧调度的STA 的数量信息。Optionally, the radio frame further includes resource block granularity information, and/or a STA of the current radio frame scheduling Quantity information.
可选地,所述无线帧还包含指示是否所有资源块都被调度的指示信息。Optionally, the radio frame further includes indication information indicating whether all resource blocks are scheduled.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同、或者完全相同、或者完全不同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information Information is not identical, or identical, or completely different.
可选地,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同包括以下情况中的任一种:Optionally, the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
可选地,所述无线帧还包含STA的组标识指示信息。Optionally, the radio frame further includes group identification indication information of the STA.
可选地,所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。Optionally, the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
一种资源调度的指示方法,包括:A method for indicating resource scheduling includes:
站点STA接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信 息;N≥1;第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000002
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
The station STA receives the radio frame that includes the resource allocation indication information, and the resource allocation indication information includes the resource allocation indication information of the N STAs. The resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the The location indication information of the resource block used by the STA; N≥1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000002
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
所述STA根据所述资源分配指示信息确定分配给本STA的资源块。The STA determines a resource block allocated to the STA according to the resource allocation indication information.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。Optionally, in the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
可选地,当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA. The information is the default indication.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述无线帧中还包括本无线帧所调度的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;其中,所述N个STA使用的资源块的位置指示信息及N个STA使用的资源块的数量指示信息均连续指示,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息; Optionally, the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs The indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and The number of resource blocks used by the N STAs indicates that there is no other information between the information;
所述STA根据所述资源分配指示信息确定所分配的资源块包括:Determining, by the STA, the allocated resource block according to the resource allocation indication information includes:
所述STA根据所述每个STA的资源指示顺序的指示信息获知本STA的排序;根据本无线帧调度的资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据本STA使用的资源块的数量指示信息获取分配给本STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在本STA之前的STA使用的资源块的位置指示信息,得到本STA使用的资源块的位置指示信息,根据所述本STA使用的资源块的位置指示信息获知分配给本STA的资源块的位置。The STA learns the order of the STA according to the indication information of the resource indication order of each STA; the total number of resource blocks is confirmed according to the indication information of the total number of resource blocks scheduled by the radio frame, according to the total number of resource blocks and the scheduling The number of STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STA is obtained according to the number of resource blocks used by the STA; The sum of the number of bits finds the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication information of the resource block used by the STA is obtained. And obtaining, according to the location indication information of the resource block used by the STA, the location of the resource block allocated to the STA.
可选地,所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;Optionally, the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
或者,or,
所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
可选地,所述无线帧中还包括所调度的STA的数量信息。Optionally, the radio frame further includes quantity information of the scheduled STAs.
可选地,所述资源块的总数量的指示信息包括:所调度的资源的大小信息和资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总数量;Optionally, the indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to the resources: The scheduling granularity and the size information of the scheduled resources calculate the total number of resource blocks;
或者,or,
所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
可选地,所述资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。Optionally, the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
一种资源调度的指示装置,设置于发送方设备中,包括: A resource scheduling indication device is disposed in the sender device, and includes:
生成模块,设置成生成资源分配指示信息;Generating a module, configured to generate resource allocation indication information;
发送模块,设置成发送包含所述资源分配指示信息的无线帧给接收方;a sending module, configured to send a radio frame including the resource allocation indication information to a receiver;
所述资源分配指示信息包括N个站点STA的资源分配指示信息;每个STA的资源分配指示信息包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;The resource allocation indication information includes resource allocation indication information of the N stations; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the location indication information of the resource block used by the STA; ≥1;
第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000003
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;
The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000003
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1≤n≤N;
第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite The number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述生成模块生成资源分配指示信息包括:Optionally, the generating, by the generating module, the resource allocation indication information includes:
所述生成模块依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。The generating module generates resource allocation indication information for the N STAs in sequence; each time in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies: The maximum number R m-max of the resource blocks allocated by the STA is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
可选地,所述无线帧还包含所述N个STA的标识信息,且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。Optionally, the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
可选地,在所述无线帧中,所述N个STA使用的资源块的数量指示信息和/或位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。Optionally, in the radio frame, the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is arranged after all other indication information.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息 位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs There is no other information between the number of resource blocks used by the N STAs and the number of resource blocks used by the N STAs.
可选地,当第N个调度的STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth scheduled STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource of the Nth STA. The allocation indication information is the default indication information.
可选地,所述无线帧还包含本无线帧调度的资源的大小信息。Optionally, the radio frame further includes size information of resources scheduled by the radio frame.
可选地,所述无线帧还包含资源块粒度信息、和/或本无线帧调度的STA的数量信息。Optionally, the radio frame further includes resource block granularity information, and/or quantity information of STAs scheduled by the current radio frame.
可选地,所述无线帧还包含指示是否所有资源块都被调度的指示信息。Optionally, the radio frame further includes indication information indicating whether all resource blocks are scheduled.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同、或者完全相同、或者完全不同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information Information is not identical, or identical, or completely different.
可选地,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同包括以下情况中的任一种:Optionally, the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
可选地,所述无线帧还包含STA的组标识指示信息。 Optionally, the radio frame further includes group identification indication information of the STA.
可选地,所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。Optionally, the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
一种资源调度的指示装置,设置于站点STA中,包括:A resource scheduling indication device is disposed in the STA of the station, and includes:
接收模块,设置成接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息至少包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000004
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
a receiving module, configured to receive a radio frame that includes resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the number of resource blocks used by the STA The indication information and the location indication information of the resource block used by the STA; N≥1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000004
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
处理模块,设置成根据所述资源分配指示信息确定分配给所在STA的资源块。And a processing module, configured to determine, according to the resource allocation indication information, a resource block allocated to the STA where the STA is located.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。Optionally, in the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
可选地,当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA. The information is the default indication.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。 Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述无线帧中还包括本无线帧所调度的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;其中,所述N个STA使用的资源块的位置指示信息及N个STA使用的资源块的数量指示信息均连续指示,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息;Optionally, the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs The indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and The number of resource blocks used by the N STAs indicates that there is no other information between the information;
所述处理模块根据所述资源分配指示信息确定分配给所在STA的资源块包括:Determining, by the processing module, the resource blocks allocated to the STAs that are located according to the resource allocation indication information includes:
所述处理模块根据所述每个STA的资源指示顺序的指示信息获知所在STA的排序;根据本无线帧调度的资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据所在STA使用的资源块的数量指示信息获取分配给所在STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在所在STA之前的STA使用的资源块的位置指示信息,得到所在STA使用的资源块的位置指示信息,根据所在STA使用的资源块的位置指示信息获知分配给所在STA的资源块的位置。The processing module learns the order of the STAs according to the indication information of the resource indication order of each STA; and confirms the total number of resource blocks according to the indication information of the total number of resource blocks scheduled by the current radio frame, according to the total number of resource blocks and The number of the scheduled STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STAs is obtained according to the number of resource blocks used by the STAs; The sum of the number of bits is found to find the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication of the resource block used by the STA is obtained. The information is obtained according to the location indication information of the resource block used by the STA, and the location of the resource block allocated to the STA.
可选地,所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;Optionally, the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
或者,or,
所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
可选地,所述无线帧中还包括所调度的STA的数量信息。Optionally, the radio frame further includes quantity information of the scheduled STAs.
可选地,所述资源块的总数量的指示信息包括:所调度的资源的大小信息和资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总 数量;Optionally, the indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to the resources: The scheduling granularity and the size information of the scheduled resources calculate the total of the resource blocks Quantity
或者,or,
所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
可选地,所述资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。Optionally, the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述方法。A computer readable storage medium storing computer executable instructions for performing the above method.
本发明实施例提供了一种资源调度指示方案,可以支持灵活的资源调度分配,可以极大的压缩资源分配指示信息的开销,进而提高指示效率,提高网络的传输效率。The embodiment of the invention provides a resource scheduling indication scheme, which can support flexible resource scheduling allocation, and can greatly reduce the overhead of resource allocation indication information, thereby improving indication efficiency and improving network transmission efficiency.
在阅读并理解了附图和详细描述后,可以明白其它方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述BRIEF abstract
图1是实施例一的资源调度的指示方法的流程示意图;1 is a schematic flowchart of a method for indicating resource scheduling according to Embodiment 1;
图2是实施例二的资源调度的指示方法的流程示意图;2 is a schematic flowchart of a method for indicating resource scheduling according to Embodiment 2;
图3是实施示例一~六中4个STA的资源块分配示意图;3 is a schematic diagram of resource block allocation of four STAs in Embodiments 1 to 6;
图4是实施示例一中剔除STA1分配资源块后的资源块分配示意图;4 is a schematic diagram of resource block allocation after culling STA1 allocated resource blocks in Embodiment 1;
图5是实施示例一中剔除STA1、STA2分配资源块后的资源块分配示意图;5 is a schematic diagram of resource block allocation after culling STA1, STA2 allocates resource blocks in Embodiment 1;
图6是实施示例二~六中剔除STA3分配资源块后的资源块分配示意图;6 is a schematic diagram of resource block allocation after removing STA3 allocation resource blocks in Embodiments 2-6;
图7是实施示例二~六中剔除STA3、STA4分配资源块后的资源块分配示意图;7 is a schematic diagram of resource block allocation after removing resource blocks allocated by STA3 and STA4 in Embodiments 2-6;
图8是实施例三的资源调度的指示装置的示意图;8 is a schematic diagram of a resource scheduling indication device of Embodiment 3;
图9是实施例四的资源调度的指示装置的示意图。 9 is a schematic diagram of a resource scheduling indication device of Embodiment 4.
本发明的实施方式Embodiments of the invention
需要说明的是,如果不冲突,本发明实施例以及实施例中的特征可以相互结合。另外,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。It should be noted that the features of the embodiments of the present invention and the embodiments may be combined with each other if they do not conflict. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.
实施例一、一种资源调度的指示方法,如图1所示,包括步骤S110~S120:Embodiment 1 A method for indicating resource scheduling, as shown in FIG. 1 , includes steps S110-S120:
S110、发送方生成资源分配指示信息;S110. The sender generates resource allocation indication information.
其中,可以是发送方将资源分配给N个STA后,根据为所述N个STA分配的资源块生成所述资源分配指示信息;也可以是根据已分配给N个STA的资源块的情况生成所述资源分配指示信息。The resource allocation indication information may be generated according to the resource block allocated to the N STAs after the resource is allocated to the N STAs, or may be generated according to the resource block allocated to the N STAs. The resource allocation indication information.
S120、所述发送方发送包含所述资源分配指示信息的无线帧给接收方;S120. The sender sends a radio frame that includes the resource allocation indication information to a receiver.
所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息至少包含两部分内容:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;其中,N为大于或等于1的整数;The resource allocation indication information includes resource allocation indication information of the N STAs; the resource allocation indication information of each STA includes at least two parts of content: the quantity indication information of the resource block used by the STA and the location indication of the resource block used by the STA Information; wherein N is an integer greater than or equal to 1;
第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000005
其中,
Figure PCTCN2016081444-appb-000006
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N,n为1时Rn为准备分配给所述N个STA的资源块的总数量;
The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000005
among them,
Figure PCTCN2016081444-appb-000006
Representing the rounding operation, R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1≤n≤N, when n is 1, R n is ready to be allocated to the N STAs The total number of resource blocks;
第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用bitmap模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号(上一次的编号)一致,即按照原有编号排序的结果,和按照新的编号排序的结果相同;n为1时进行的编号为资源块的初始编号,此时不存在原有编号。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, which is indicated by a bitmap mode; the number of the resource block is Numbers from 1 to R n that have been re-allocated by R n resource blocks. After the resource blocks are renumbered, the size relationship of the numbers is the same as the original number (the last number), that is, the result sorted by the original number. The result is the same as the result sorted by the new number; the number when n is 1 is the initial number of the resource block, and the original number does not exist at this time.
可选的,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量增加1,即比特数量为x+1,x为正整数。 Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is increased by 1, that is, the number of bits is x+1, x is a positive integer.
可选的,所述步骤S110包括:依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。Optionally, the step S110 includes: generating resource allocation indication information for the N STAs in sequence; and generating, in each of the STAs that do not generate the resource allocation indication information, resource allocation indication information, where One STA satisfies: the maximum number R m-max of resource blocks allocated for the STA is the minimum value among the maximum numbers of resource blocks allocated to other STAs that have not yet generated resource allocation indication information.
本可选方案中所述的编号可以均是指初始编号。本可选方案中,生成所述第一STA的资源分配指示信息后,继续在还未生成资源分配指示信息的STA中,找到满足上文条件的STA作为第一STA,优先生成该STA的资源分配指示信息,直到所有的STA的资源分配指示信息都已生成。The numbers described in this alternative may all refer to the initial number. In this implementation, after the resource allocation indication information of the first STA is generated, the STA that has not generated the resource allocation indication information continues to find the STA that meets the above conditions as the first STA, and preferentially generates the resource of the STA. The indication information is allocated until resource allocation indication information of all STAs has been generated.
在其它可选方案中,可以按照默认的或预定的顺序进行资源分配指示。In other alternatives, resource allocation indications may be made in a default or predetermined order.
可选的,所述无线帧还包含所述N个STA的标识信息,可以但不限于为AID(Application Identifier,应用标识符)或者PAID(Proccessed Application Identifier,经过处理的应用标识符),且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。Optionally, the radio frame further includes the identifier information of the N STAs, which may be, but not limited to, an AID (Application Identifier) or a PAID (Proccessed Application Identifier). The identification information of the N STAs is arranged in the radio frame in the order of the resource allocation indication information of the generated STA.
可选的,在所述无线帧中,所述N个STA使用的资源块的数量指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。Optionally, in the radio frame, the quantity indication information of the resource blocks used by the N STAs is continuously indicated in the radio frame, and the order of indication is the same as the order of indication information of the STA.
可选的,在所述无线帧中,所述N个STA使用的资源块的位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is continuously indicated in the radio frame, and the order of the indication is the same as the indication order of the STA.
可选的,在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is arranged after all other indication information.
可选的,在所述无线帧中,所述N个STA使用的资源块的位置指示信息紧随所述N个STA使用的资源块的数量指示信息,即:所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息(包括空闲位),也就是说数量指示信息最末尾一个比特后的下一个比特就是位置指示信息的第一个比特。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is in accordance with the quantity indication information of the resource blocks used by the N STAs, that is, the resources used by the N STAs. The location indication information of the block is located after the number indication information of the resource blocks used by the N STAs, and there is no other information (including idle bits) between the number indications of the resource blocks used by the N STAs, that is, The next bit after the last bit of the quantity indication information is the first bit of the position indication information.
可选的,当第N个STA占用尚未使用的所有资源块时,无需在所述资源分配指示信息中进行指示或者是采用一个缺省的指示信息,即该情况下所述 资源分配指示信息中不包含第N个STA的资源分配指示信息,或第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all resource blocks that have not been used, it is not necessary to indicate in the resource allocation indication information or adopt a default indication information, that is, in the case The resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is the default indication information.
可选的,所述无线帧还包含本无线帧调度的资源的大小信息;当所述资源为频域资源时,所述本无线帧调度的资源的大小信息即本无线帧发送所使用的无线信道带宽信息。Optionally, the radio frame further includes size information of the resource scheduled by the radio frame. When the resource is a frequency domain resource, the size information of the resource scheduled by the radio frame is the radio used by the radio frame. Channel bandwidth information.
可选的,所述无线帧还包含资源块粒度信息,即:所述资源块的大小信息。所述无线帧中也可以不包括资源块粒度信息,资源块的粒度采用预设的数值,比如为默认的大小,再比如为发送方和接收方约定的大小。Optionally, the radio frame further includes resource block granularity information, that is, size information of the resource block. The radio frame may not include the resource block granularity information, and the granularity of the resource block adopts a preset value, such as a default size, and is, for example, a size agreed by the sender and the receiver.
其中,所述资源块可以但不限于为频域资源块,所述资源块的大小信息是指频域大小信息;所述资源块也可以为时域资源块、时频资源块等,所述资源块的大小信息是指相应资源的大小。The resource block may be, but not limited to, a frequency domain resource block, where the size information of the resource block refers to frequency domain size information, and the resource block may also be a time domain resource block, a time-frequency resource block, or the like. The size information of a resource block refers to the size of the corresponding resource.
可选的,所述无线帧还包含本无线帧调度的STA的数量信息。所述无线帧中也可以不包括调度的STA的数量信息,STA的数量采用预设的数值,比如为默认的个数,再比如为发送方和接收方约定的个数。Optionally, the radio frame further includes information about the number of STAs scheduled by the radio frame. The number of STAs may not include the number of scheduled STAs, and the number of STAs adopts a preset value, such as a default number, and is, for example, a number agreed by the sender and the receiver.
可选的,所述无线帧还包含指示是否所有资源块都被调度的指示信息。也可以默认为全部都调度。Optionally, the radio frame further includes indication information indicating whether all resource blocks are scheduled. It is also possible to schedule all by default.
可选的,所述无线帧还包含指示本无线帧包含的资源分配指示信息为上行或下行调度的信息。Optionally, the radio frame further includes information indicating that the resource allocation indication information included in the radio frame is uplink or downlink scheduling.
可选的,所述无线帧还包含指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Optionally, the radio frame further includes information indicating that the resource allocation indication information included in the radio frame is discontinuous or continuous resource block scheduling.
可选的,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的MPDU(Media Access Control Protocol Data Unit,介质访问控制协议数据单元)内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in an MPDU (Media Access Control Protocol Data Unit) of the radio frame.
可选的,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息可以与资源分配指示信息包括的STA的标识信息完全相同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame may be the identifier information of the STA included in the resource allocation indication information. It's exactly the same.
可选的,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息可以与资源分配指示信 息包括的STA的标识信息完全不同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiving STA of the data part carried by the radio frame may be related to the resource allocation indication The identification information of the STA included in the information is completely different.
可选的,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息可以与资源分配指示信息包括的STA的标识信息不完全相同;可以但不限于包括以下情况中的任一种:Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame may be the identifier information of the STA included in the resource allocation indication information. Not identical; may, but is not limited to, include any of the following:
所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;即:所述资源分配指示信息包含的STA的标识信息中,不包含部分或所有所述接收方STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information; that is, the STA of the resource allocation indication information The identification information does not include identification information of some or all of the receiving STAs;
所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
可选的,所述无线帧还包含组标识指示信息。Optionally, the radio frame further includes group identifier indication information.
可选的,所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。Optionally, the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
实施例二、一种资源调度的指示方法,如图2所示,包括:Embodiment 2: A method for indicating resource scheduling, as shown in FIG. 2, includes:
S210、STA接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息至少包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;其中,第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000007
其中,
Figure PCTCN2016081444-appb-000008
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
S210: The STA receives the radio frame that includes the resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the quantity indication information of the resource block used by the STA. And location indication information of the resource block used by the STA; N≥1; wherein, the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000007
among them,
Figure PCTCN2016081444-appb-000008
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
S220、所述STA根据所述资源分配指示信息确定分配给本STA的资源 块。S220. The STA determines, according to the resource allocation indication information, resources allocated to the STA. Piece.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则第N个使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of used Nth resource blocks indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
可选地,所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。Optionally, in the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
可选地,当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA. The information is the default indication.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的MAC协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a MAC protocol data unit of the radio frame.
可选地,所述无线帧中还包括本无线帧所调度的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;其中,所述N个STA使用的资源块的位置指示信息及N个STA使用的资源块的数量指示信息均连续指示,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息;Optionally, the radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, and indication information of a resource indication order of each STA, where the location of the resource block used by the N STAs The indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and The number of resource blocks used by the N STAs indicates that there is no other information between the information;
所述STA根据所述资源分配指示信息确定所分配的资源块包括:Determining, by the STA, the allocated resource block according to the resource allocation indication information includes:
所述STA根据所述每个STA的资源指示顺序的指示信息获知本STA的排序;根据资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据本STA使用的资源块的数量指示信息获取分配给本STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在本STA之前的STA使用的资源块的位置指示信息,得到本STA使用的资源块的位置指示信息,根据本STA 使用的资源块的位置指示信息获知分配给本STA的资源块的位置。The STA obtains the order of the STA according to the indication information of the resource indication order of each STA, and confirms the total number of resource blocks according to the indication information of the total number of resource blocks, and calculates according to the total number of resource blocks and the number of scheduled STAs. The number of resource blocks used by each STA indicates the sum of the number of bits of the information, and the number of resource blocks allocated to the STA is obtained according to the number of resource blocks used by the STA; the sum of the number of bits is found. The location of the resource block used by the N STAs indicates the start position of the information, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication information of the resource block used by the STA is obtained, according to the STA. The location indication information of the used resource block learns the location of the resource block allocated to the STA.
可选地,所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;Optionally, the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
或者,or,
所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
可选地,所述无线帧中还包括所调度的STA的数量信息。所述STA根据该数量信息确认调度的STA的数量;调度的STA数量也可以是预设的值,或者可以根据标识信息的个数确认。Optionally, the radio frame further includes quantity information of the scheduled STAs. The STA confirms the number of scheduled STAs according to the quantity information; the number of scheduled STAs may also be a preset value, or may be confirmed according to the number of identification information.
可选地,资源块的总数量的指示信息包括:所调度的资源的大小信息和资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总数量;Optionally, the indication information of the total number of resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to: And calculating the total number of resource blocks by the size information of the scheduled resources;
或者,or,
所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
也可以所调度的资源的大小信息为预设的值,资源块的总数量的指示信息包括资源调度粒度;还可以所调度的资源块的总数量为预设的值,此时无线帧可以不包括资源块的总数量的指示信息。The size information of the scheduled resource may be a preset value, and the indication information of the total number of resource blocks includes a resource scheduling granularity; and the total number of the scheduled resource blocks may be a preset value, and the wireless frame may not be Includes indications of the total number of resource blocks.
可选地,资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。Optionally, the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
其它实现细节可参见实施例一。For other implementation details, refer to the first embodiment.
下面用六个实施示例对上述实施例进行说明。The above embodiment will be described below using six embodiment examples.
实施示例一Implementation example one
本实施示例中,无线帧包含下行或者上行OFDMA资源分配指示信息,资源分配指示信息位于无线帧数据域MPDU内,4个STA标识顺序随意(比 如按照STA1、STA2、STA3、STA4的顺序依次排列),资源块为频域资源块,发送方为AP。In this embodiment, the radio frame includes downlink or uplink OFDMA resource allocation indication information, and the resource allocation indication information is located in the radio frame data domain MPDU, and the four STAs are in random order. If the order is in the order of STA1, STA2, STA3, and STA4, the resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。The AP forms a BSS with multiple non-AP STAs.
AP使用传统的OFDM技术发送一个无线帧,无线帧格式是传统的WLAN设备(符合IEEE802.11a/g/n/ac标准的设备)可以识别的,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频域资源块。假定本次发送,AP使用40MHz带宽,共有18个频域资源块可以分配,AP分配给4个STA的资源如图3所示,假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP uses a conventional OFDM technology to transmit a radio frame. The radio frame format is identifiable by a conventional WLAN device (a device conforming to the IEEE802.11a/g/n/ac standard), and the resource scheduling granularity is pre-defined by the protocol, and each The 20MHz bandwidth is divided into nine frequency domain resource blocks. Assume that the AP uses a 40 MHz bandwidth, and a total of 18 frequency domain resource blocks can be allocated. The resources allocated by the AP to the four STAs are as shown in FIG. 3, and the initial number of the 18 frequency domain resource blocks is assumed to be 1 to 18, where The frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource blocks numbered 1, 2, 4, and 6. Assigned to STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
本次调度AP按照STA1、STA2、STA3、STA4的顺序进行资源分配指示;The scheduling AP performs resource allocation indication according to the order of STA1, STA2, STA3, and STA4.
AP组建无线帧进行发送,资源分配指示信息位于无线帧数据域中,本示例是在MPDU中,无线帧MAC帧头指示此无线帧的类型是一种资源调度帧,无线帧MPDU中指示此资源分配指示信息为上行资源分配指示信息;并且资源分配指示信息包含本次资源分配是一种离散资源分配方式的指示;The AP sets up a radio frame for transmission, and the resource allocation indication information is located in the radio frame data field. In this example, in the MPDU, the radio frame MAC frame header indicates that the type of the radio frame is a resource scheduling frame, and the resource is indicated in the radio frame MPDU. The allocation indication information is uplink resource allocation indication information; and the resource allocation indication information includes an indication that the current resource allocation is a discrete resource allocation manner;
资源分配指示信息包含4个STA的标识符AID或者经过处理的标识符PAID,按照STA1、STA2、STA3、STA4的顺序依次排列;The resource allocation indication information includes an identifier AID of the four STAs or a processed identifier PAID, which are sequentially arranged in the order of STA1, STA2, STA3, and STA4.
资源分配指示信息包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次排列:The resource allocation indication information includes the number indication information of the resource blocks used by the four STAs, and is sequentially arranged in the order indicated by the identifiers of the four STAs:
首先是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000009
即5个比特,本次调度分配给STA1的数量为4个频域资源块,故STA1使用的资源块的数量指示信息为00100;
The first is the number of resource blocks used by STA1, and the number of occupied bits is
Figure PCTCN2016081444-appb-000009
That is, 5 bits, the number of allocations to STA1 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA1 is 00100;
然后是STA2使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000010
即4个比特,本次调度分配给STA2的数量为4个频域资源块,故STA2使用的资源块的数量指示信息为0100;
Then, the number of resource blocks used by STA2 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000010
That is, 4 bits, the number of allocations to STA2 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA2 is 0100;
再是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000011
即4个比特,本次调度分配给STA3的数量为4个频域 资源块,故STA3使用的资源块的数量指示信息为0100;
Then, the number of resource blocks used by STA3 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000011
That is, 4 bits, the number of allocations to STA3 in this scheduling is 4 frequency domain resource blocks, so the number of resource blocks used by STA3 is 0100;
再是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000012
即3个比特,本次调度分配给STA4的数量为6个频域资源块,故STA4使用的资源块的数量指示信息为110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000012
That is, 3 bits, the number of allocations to STA4 in this scheduling is 6 frequency domain resource blocks, so the number of resource blocks used by STA4 is 110;
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括4个STA使用的资源块的数量指示信息,具体为:0010001000100110;Obtaining, according to the foregoing sequence, the resource block number indication information sub-field in the radio frame, including the number indication information of the resource blocks used by the four STAs, specifically: 0010001000100110;
资源分配指示信息包含4个STA使用的资源块的位置指示信息,按照4个STA的标识符指示顺序依次排列,每个STA资源块位置采用bitmap的格式指示:The resource allocation indication information includes location indication information of the resource blocks used by the four STAs, and is sequentially arranged according to the identifier indication order of the four STAs, and each STA resource block location is indicated by a bitmap format:
首先是STA1使用的资源块的位置指示信息,STA1占用的资源块的最大编号为17,那么需要17个比特指示,STA1使用的资源块的位置指示信息为:0000 0001 0010 0010 1;The first is the location indication information of the resource block used by STA1, and the maximum number of the resource block occupied by STA1 is 17, then 17 bits are required, and the location indication information of the resource block used by STA1 is: 0000 0001 0010 0010 1;
然后是STA2使用的资源块的位置指示信息,剔除STA1占用的4个资源块后,重新编号,如图4,在新的编号中STA2分配到的最大资源块编号为14,那么需要14个比特指示,STA2使用的资源块的位置指示信息为:00000000 0011 11;Then, it is the location indication information of the resource block used by STA2, and after re-numbering the four resource blocks occupied by STA1, as shown in FIG. 4, the maximum resource block number assigned by STA2 in the new number is 14, and 14 bits are needed. Indicates that the location indication information of the resource block used by STA2 is: 000000000 0011 11;
然后是STA3使用的资源块的位置指示信息,剔除STA1、STA2占用的8个资源块后,重新编号,如图5,在新的编号中STA3分配到的最大资源块编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;Then, it is the location indication information of the resource block used by STA3, and after re-numbering the 8 resource blocks occupied by STA1 and STA2, as shown in FIG. 5, the maximum resource block number assigned by STA3 in the new number is 6, and then 6 is needed. The bit indicates that the location indication information of the resource block used by STA3 is: 1101 01;
最后是STA4使用的资源块的位置指示信息,剔除STA1、STA2、STA3占用的12个资源块后,重新编号,剩余的6个资源块都分配给STA4;在新的编号中STA4分配到的最大资源块编号为6,那么需要6个比特指示,STA4使用的资源块的位置指示信息为:1111 11;The last is the location indication information of the resource block used by STA4. After the 12 resource blocks occupied by STA1, STA2, and STA3 are removed, the number is renumbered, and the remaining 6 resource blocks are allocated to STA4. The maximum number of STA4 allocated in the new number is The resource block number is 6, then 6 bits are required, and the location indication information of the resource block used by STA4 is: 1111 11;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括4个STA使用的资源块的位置指示信息,具体为0000 0001 0010 0010 10000 00000011 111101 011111 11;Obtaining the resource block location indication information subfield in the radio frame, including the location indication information of the resource blocks used by the four STAs, specifically 0000 0001 0010 0010 10000 00000011 111101 011111 11;
在无线帧中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、 调度的STA的数量信息等,4个STA使用的资源块的位置指示信息位于4个STA使用的资源块的数量指示信息之后,并且置于信令域其他指示信息之后。The radio frame also carries other signaling indication information, such as bandwidth information used for radio frame transmission, The number information of the scheduled STAs, etc., the location indication information of the resource blocks used by the four STAs is located after the number indication information of the resource blocks used by the four STAs, and is placed after the other indication information of the signaling domain.
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧来获知本次传输的资源分配指示信息,且获知该资源分配指示信息为上行资源分配指示信息;After receiving the radio frame, the STA1, the STA2, the STA3, and the STA4 obtain the resource allocation indication information of the current transmission by parsing the radio frame, and learn that the resource allocation indication information is the uplink resource allocation indication information;
STA1接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,根据标识符顺序获知自己的资源分配指示信息位于4个STA的第一位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,STA1使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000013
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次分配到4个资源块;测算第二个STA资源块数量指示使用的比特数为
Figure PCTCN2016081444-appb-000014
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到4个资源块;测算第三个STA资源块数量指示使用的比特数为
Figure PCTCN2016081444-appb-000015
即4个比特,从资源块数量指示信息子域中提取10~13位,获知第三个STA分配到4个资源块;测算第四个STA资源块数量指示使用的比特数为
Figure PCTCN2016081444-appb-000016
即3个比特,至此获知资源块数量指示信息子域总共16比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块位置指示信息子域进行信息提取,查找到前4个1即可,得到0000 0001 0010 0010 1,获知分配到的资源块的编号为8、11、15、17;
The STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the first bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned. The bandwidth used in this time is 40MHz, and the total number of schedulable resource blocks is 18. The number of resource blocks used by STA1 indicates the number of bits used by the information.
Figure PCTCN2016081444-appb-000013
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the second STA resource block number is used to indicate that the number of bits used is
Figure PCTCN2016081444-appb-000014
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 4 resource blocks; the third STA resource block number is used to indicate that the number of bits used is
Figure PCTCN2016081444-appb-000015
That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the fourth STA resource block number is used to indicate that the number of bits used is
Figure PCTCN2016081444-appb-000016
That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and STA1 extracts information in the resource block position indication information sub-domain, and finds the first four 1s. That is, 0000 0001 0010 0010 1 is obtained, and the number of the allocated resource blocks is 8, 11, 15, and 17;
STA2接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,根据标识符顺序获知自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,测算第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000017
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000018
即4个比特,从资源块数量指示信息子域中提取6~9位,获知本次分配到4个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000019
即4个比特,从资源块数量指示信息子域中提取10~13 位,获知第三个STA分配到4个资源块;测算第四个STA资源块数量指示使用的比特数为
Figure PCTCN2016081444-appb-000020
即3个比特,至此获知资源块数量指示信息子域总共16比特,进而获知资源块位置指示信息子域的开始位置,STA2在资源块位置指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息0000 0001 0010 0010 1后(前4个1),继续查找到4个1即可,得到0000 0000 0011 11,结合第一个STA使用的资源块的位置,即可获知分配到的资源块编号为13、14、16、18;
The STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the second bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned. The bandwidth used in this time is 40MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000017
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and it is learned that the first STA is allocated to 4 resource blocks; the second STA is used to indicate the number of resource blocks used by itself. The number of bits is
Figure PCTCN2016081444-appb-000018
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000019
That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the fourth STA resource block number is used to indicate that the number of bits used is
Figure PCTCN2016081444-appb-000020
That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and STA2 extracts information in the resource block position indication information sub-domain, and the first STA is used. After the location indication information of the resource block is 0000 0001 0010 0010 1 (the first 4 1s), continue to find 4 1s, and get 0000 0000 0011 11, combined with the location of the resource block used by the first STA, you can know The assigned resource block numbers are 13, 14, 16, and 18;
STA3接收到此无线帧,首先根据调度的STA的数量指示信息获知本次调度4个STA,根据标识符顺序获知自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,测算第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000021
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000022
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到4个资源块;测算第三个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000023
即4个比特,从资源块数量指示信息子域中提取10~13位,获知本次分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000024
即3个比特,至此获知资源块数量指示信息子域总共16比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA的资源块位置指示信息0000 0001 0010 0010 10000 0000 0011 11(前8个1)后,继续查找到4个1即可,得到1101 01,结合第一个、第二个STA使用的资源块的位置,即可获知分配到的资源块编号为1、2、4、6;、
Receiving the radio frame, the STA3 first learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the third bit of the four STAs according to the identifier sequence; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000021
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000022
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 4 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000023
That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the fourth STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000024
That is, 3 bits, so that the resource block number indication information sub-domain is a total of 16 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA3 performs information extraction in the resource block number indication information sub-domain, and the first and the first are eliminated. After the resource block position indication information of the two STAs is 0000 0001 0010 0010 10000 0000 0011 11 (the first 8 1s), the search for 4 1s is continued, and 1101 is obtained, and the resources used by the first and second STAs are combined. The location of the block, you can know that the allocated resource block number is 1, 2, 4, 6;
STA4接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,根据标识符顺序获知自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,测算第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000025
即5个比特,从资源块数量指示信息子域中提取前5 个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000026
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到4个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000027
即4个比特,从资源块数量指示信息子域中提取10~13位,获知第三个STA分配到4个资源块;测算第四个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000028
即3个比特,而且获知分配到6个资源块,至此获知资源块数量指示信息子域总共16比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个、第二个、第三个STA使用的资源块的位置指示信息0000 0001 0010 0010 10000 0000 0011 111101 01后,继续查找到第6个1即可,1111 11,结合第一个、第二个、第三个STA使用的资源块的位置,即可获知分配到的资源块编号为3、5、7、9、10、12。
The STA4 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and learns that the resource allocation indication information of the STA is located in the third bit of the four STAs according to the identifier sequence; the radio frame bandwidth indication information is learned. The bandwidth used in this time is 40MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000025
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000026
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 4 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000027
That is, 4 bits, 10 to 13 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000028
That is, 3 bits, and it is known that the resource blocks are allocated to 6 resource blocks, and thus the number of resource block indication information sub-domains is 16 bits in total, and then the start position of the resource block position indication information sub-domain is known, and STA4 performs the resource block number indication information sub-domain. Information extraction, eliminating the position indication information of the resource block used by the first, second, and third STAs 0000 0001 0010 0010 10000 0000 0011 111101 01, continue to find the sixth one, 1111 11, combined with The location of the resource blocks used by one, the second, and the third STA can be known to be assigned resource block numbers of 3, 5, 7, 9, 10, and 12.
实施示例二Implementation example two
本实施示例中为下行OFDMA调度,资源分配指示信息位于无线帧物理层信令域中,4个STA的标识信息按照分配到的资源块的最大编号升序排列。资源块为频域资源块,发送方为AP。In this embodiment, the downlink OFDMA scheduling is performed, and the resource allocation indication information is located in the radio frame physical layer signaling domain, and the identifier information of the four STAs is arranged in ascending order according to the maximum number of the allocated resource blocks. The resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。The AP forms a BSS with multiple non-AP STAs.
AP使用OFDMA技术发送数据给STA1~STA4,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频域资源块。假定本次发送,AP使用40MHz带宽,共有18个频域资源块可以分配,AP分配给4个STA的资源如图3所示:假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP uses the OFDMA technology to transmit data to STA1 to STA4. The resource scheduling granularity is pre-defined by the protocol. Each 20 MHz bandwidth is divided into 9 frequency domain resource blocks. Assume that the AP uses a 40 MHz bandwidth for the current transmission. A total of 18 frequency domain resource blocks can be allocated. The resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where The frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource blocks numbered 1, 2, 4, and 6. Assigned to STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
本次调度AP按照4个STA分配到资源块的最大编号升序调度,按照STA3(最大资源块编号6)、STA4(最大资源块编号12)、STA1(最大资源块编号17)、STA2(最大资源块编号18)的顺序进行资源分配指示; The scheduling AP is scheduled in ascending order according to the maximum number of resource blocks allocated by the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource). The resource allocation indication is performed in the order of block number 18);
AP组建无线帧进行发送,资源分配指示信息在无线帧的物理层信令域中,4个STA的数据承载在无线帧的数据域部分,每个STA的数据使用的资源与本帧物理层信令域中的资源分配指示信息一致;The AP sets up a radio frame for transmission. The resource allocation indication information is in the physical layer signaling domain of the radio frame. The data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer of the frame are Make the resource allocation indication information in the domain consistent;
无线帧的物理层信令域中,4个STA的标识符AID或者经过处理的标识符PAID按照STA3、STA4、STA1、STA2的顺序依次排列;In the physical layer signaling domain of the radio frame, the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
无线帧的物理层信令域中,包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次指示:The physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
首先是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000029
即5个比特,本次调度分配给STA3的频域资源块的数量为4个,故STA3使用的资源块的数量指示信息为00100;
The first is the number of resource blocks used by STA3, and the number of occupied bits is
Figure PCTCN2016081444-appb-000029
That is, 5 bits, the number of frequency domain resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
然后是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000030
即4个比特,本次调度分配给STA4的频域资源块的数量为6个,故STA4使用的资源块的数量指示信息为0110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000030
That is, 4 bits, the number of frequency domain resource blocks allocated to STA4 in this scheduling is 6, so the number of resource blocks used by STA4 is 0110;
再是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000031
即3个比特,本次调度分配给STA1的频域资源块的数量为4个,故STA1使用的资源块的数量指示信息为100;
Then, the number of resource blocks used by STA1 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000031
That is, 3 bits, the number of frequency domain resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
再是STA2使用的资源块的数量指示信息,剩余的可分配给STA2的频域资源块数量为4个,4为2的2次幂,故占用的比特数为2+1,即3个比特,故STA2使用的资源块的数量指示信息为100;Then, the number of resource blocks used by STA2 indicates that the remaining number of frequency domain resource blocks that can be allocated to STA2 is four, and 4 is 2 to the power of 2, so the number of occupied bits is 2+1, that is, 3 bits. Therefore, the number of resource blocks used by STA2 is 100;
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括:4个STA使用的资源块的数量指示信息,具体为001000110100100;Obtaining, according to the foregoing sequence, the resource block number indication information sub-domain in the radio frame, including: the quantity indication information of the resource blocks used by the four STAs, specifically 001000110100100;
无线帧的物理层信令域中,包含4个STA使用的资源块的位置指示信息,按照4个STA的标识符指示顺序依次指示,每个STA使用的资源块的位置指示信息采用bitmap的格式指示:In the physical layer signaling domain of the radio frame, the location indication information of the resource block used by the four STAs is sequentially indicated according to the identifier indication sequence of the four STAs, and the location indication information of the resource block used by each STA is in the bitmap format. Instructions:
首先是STA3使用的资源块的位置指示信息,STA3占用的资源块的最大编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;The first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
然后是STA4使用的资源块的位置指示信息,剔除STA3占用的4个资 源块后,重新编号,如图6,在新的编号中STA4分配到的最大资源块编号为8,那么需要8个比特指示,STA4使用的资源块的位置指示信息为:1110 1101;Then, it is the location indication information of the resource block used by STA4, and the 4 resources occupied by STA3 are removed. After the source block is renumbered, as shown in Figure 6, the maximum resource block number assigned by STA4 in the new number is 8, then 8 bits are required, and the location indication information of the resource block used by STA4 is: 1110 1101;
然后是STA1使用的资源块的位置指示信息,剔除STA3、STA4占用的10个资源块后,重新编号,如图7,在新的编号中STA1分配到的最大资源块编号为7,那么需要7个比特指示,STA1使用的资源块的位置指示信息为:1100 101;Then, it is the location indication information of the resource block used by STA1, and after re-numbering 10 resource blocks occupied by STA3 and STA4, as shown in FIG. 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 is needed. The bit indicates that the location indication information of the resource block used by STA1 is: 1100 101;
最后是STA2使用的资源块的位置指示信息,剔除STA1、STA3、STA4占用的14个资源块后,重新编号,剩余的6个资源块都分配给STA4在新的编号中STA4分配到的最大资源块编号为4,那么需要4个比特指示,STA2使用的资源块的位置指示信息为:1111;The last is the location indication information of the resource block used by STA2, and after re-numbering the 14 resource blocks occupied by STA1, STA3, and STA4, the remaining 6 resource blocks are allocated to the maximum resource allocated by STA4 in STA4 in the new number. The block number is 4, then 4 bits are required, and the location indication information of the resource block used by STA2 is: 1111;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括:4个STA使用的资源块的位置指示信息:具体为1101 011110 110111001011111;总共25个比特;The resource block location indication information subfield in the radio frame is finally obtained according to the foregoing sequence, and includes: location indication information of resource blocks used by the four STAs: specifically, 1101 011110 110111001011111; a total of 25 bits;
在无线帧物理层信令域中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、调度的STA的数量信息等,4个STA的资源块位置指示信息位于4个STA的资源块数量指示信息之后,并且置于信令域其他指示信息之后;The radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧物理层信令域来获知本次OFDMA传输资源分配信息;After receiving the radio frame, STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
STA3接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第一位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA即自己使用的资源块的数量指示信息使用的比特数为,
Figure PCTCN2016081444-appb-000032
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000033
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测 算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA资源块数量指示使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,查找到前4个1即可,得到1101 01,获知分配到的资源块的编号为1、2、4、6;
The STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. The maximum number of resource blocks that can be scheduled is 40, and the number of the first STA, that is, the number of resource blocks used by the first STA, indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000032
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000033
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits, and thus the number of resource block indication information sub-domains is 15 bits in total, and the resource block position indication information sub-domain is obtained. The start position of the STA3, the STA3 in the resource block number indication information sub-domain to extract information, find the first four 1 can be obtained, get 1101 01, know that the assigned resource block number is 1, 2, 4, 6;
STA4接收到此无线帧,首先根据调度STA数量指示信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000035
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000036
即4个比特,从资源块数量指示信息子域中提取6~9位,获知本次分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000037
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA资源块数量指示使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息(前4个1),继续查找到前6个1即可,得到1110 1101,获知分配到的资源块的编号为3、5、7、9、10、12;
The STA4 receives the radio frame, firstly knows that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the second bit of the four STAs; the bandwidth of the current use is obtained by using the radio frame bandwidth indication information. 40MHz, the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000035
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000036
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the current resource allocation is 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000037
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits, and thus the number of resource block indication information sub-domains is 15 bits in total, and the resource block position indication information sub-domain is obtained. The starting position of the STA4 is used for information extraction in the resource block number indication information sub-domain, and the location indication information of the resource block used by the first STA is removed (the first four 1s), and the first six 1s are continuously searched, and 1110 1101 is obtained. Obtaining that the assigned resource blocks are numbered 3, 5, 7, 9, 10, 12;
STA1接收到此无线帧,首先根据调度STA数量指示信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000038
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000039
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA即自己使用的资源 块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000040
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA使用的资源块的数量指示信息使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA使用的资源块的位置指示信息,继续查找到前4个1即可,得到1100 101,获知分配到的资源块编号为8、11、15、17;
The STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the third position of the four STAs. The bandwidth of the current use is obtained by using the radio frame bandwidth indication information. 40MHz, the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000038
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000039
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000040
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and thus the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby obtaining the resource block position. Instructing the start position of the information sub-domain, STA1 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s, and obtains 1100 101, knowing that the allocated resource block numbers are 8, 11, 15, and 17;
STA2接收到此无线帧,首先根据调度STA数量指示信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第四位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000041
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000042
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000043
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA即自己使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA使用的资源块的数量指示信息使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA2在资源块数量指示信息子域进行信息提取,剔除第一个、第二个、第三个STA使用的资源块的位置指示信息,继续查找到前4个1即可,得到1111,获知分配到的资源块编号为13、14、16、18。
The STA2 receives the radio frame, firstly knows that the four STAs are scheduled according to the scheduling STA number indication information, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs; the bandwidth of the current use is obtained by using the radio frame bandwidth indication information. 40MHz, the total number of schedulable resource blocks is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000041
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of bits used for measuring the number of resource blocks used by the second STA is
Figure PCTCN2016081444-appb-000042
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000043
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. The number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby learning the resources. The block location indicates the start position of the information subfield, and the STA2 extracts the information in the resource block number indication information subfield, and eliminates the location indication information of the resource block used by the first, second, and third STAs, and continues to find the first 4 One is 1, and 1111 is obtained. It is known that the allocated resource block numbers are 13, 14, 16, and 18.
实施示例三Implementation example three
本实施示例为下行OFDMA调度,资源分配指示信息位于无线帧物理层信令域中,4个STA的标识信息按照分配到的资源块最大编号升序调度,最 后一个STA资源位置bitmap无需指示。资源块为频域资源块,发送方为AP。The present embodiment is a downlink OFDMA scheduling, where the resource allocation indication information is located in the radio frame physical layer signaling domain, and the identification information of the four STAs is scheduled in ascending order according to the assigned maximum number of resource blocks. The latter STA resource location bitmap does not need to be indicated. The resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。The AP forms a BSS with multiple non-AP STAs.
AP使用DL OFDMA技术发送数据给STA1~STA4,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频域资源块。假定本次发送,AP使用40MHz带宽,共有18个频域资源块可以分配且本次调度所有资源块都被分配,AP分配给4个STA的资源如图3所示:假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP uses DL OFDMA technology to send data to STA1 to STA4. The resource scheduling granularity is pre-defined by the protocol. Each 20MHz bandwidth is divided into 9 frequency domain resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission. A total of 18 frequency domain resource blocks can be allocated and all resource blocks are allocated. The resources allocated by the AP to the four STAs are as shown in Figure 3. Assume 18 frequency domain resources. The initial number of the block is 1 to 18, and the frequency domain resource blocks numbered 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are assigned to STA2, numbered 1. The frequency domain resource blocks of 2, 4, and 6 are allocated to STA3, and the frequency domain resource blocks numbered 3, 5, 7, 9, 10, and 12 are allocated to STA4.
本次调度AP按照4个STA分配到资源块最大编号升序调度,按照STA3(最大资源块编号6)、STA4(最大资源块编号12)、STA1(最大资源块编号17)、STA2(最大资源块编号18)的顺序进行资源分配指示;The scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
AP组建无线帧进行发送,调度指示信息在无线帧的物理层信令域中,4个STA的数据承载在无线帧的数据域部分,每个STA的数据使用的资源与本帧物理层信令域中的资源分配指示信息一致;The AP sets up a radio frame for transmission. The scheduling indication information is in the physical layer signaling domain of the radio frame. The data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer signaling of the current frame. The resource allocation indication information in the domain is consistent;
无线帧的物理层信令域中,4个STA的标识符AID或者经过处理的标识符PAID按照STA3、STA4、STA1、STA2的顺序依次排列;In the physical layer signaling domain of the radio frame, the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
无线帧的物理层信令域中,包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次指示:The physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
首先是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000044
即5个比特,本次调度分配给STA3的资源块的数量为4个,故STA3使用的资源块的数量指示信息00100;
The first is the number of resource blocks used by STA3, and the number of occupied bits is
Figure PCTCN2016081444-appb-000044
That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 indicates information 00100;
然后是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000045
即4个比特,本次调度分配给STA4的资源块的数量为6个,故STA4使用的资源块的数量指示信息为0110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000045
That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
再是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000046
即3个比特,本次调度分配给STA1资源块的的数量为4个,故STA1使用的资源块的数量指示信息为100;
Then, the number of resource blocks used by STA1 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000046
That is, 3 bits, the number of resource blocks allocated to the STA1 resource block is 4, and the number of resource blocks used by STA1 is 100.
无需指示STA2分配到的资源块数量信息,默认为剩余的所有资源块;There is no need to indicate the number of resource blocks allocated by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括:4个STA使用的资源块的数量指示信息,具体为001000110100,共12比特;Obtaining, according to the foregoing sequence, the resource block number indication information sub-field in the radio frame, including: the quantity indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
无线帧的物理层信令域中,包含4个STA使用的资源块位置指示信息,按照4个STA的标识符指示顺序依次指示,每个STA资源块位置采用bitmap的格式指示:In the physical layer signaling domain of the radio frame, the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
首先是STA3使用的资源块的位置指示信息,STA3占用的资源块的最大编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;The first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
然后是STA4使用的资源块的位置指示信息,剔除STA3占用的4个资源块后,重新编号,如图6,在新的编号中STA4分配到的最大资源块编号为8,那么需要8个比特指示,STA4使用的资源块的位置指示信息为:1110 1101;Then, it is the location indication information of the resource block used by STA4, and after re-numbering the four resource blocks occupied by STA3, as shown in FIG. 6, in the new number, the maximum resource block number allocated by STA4 is 8, and then 8 bits are needed. Indicates that the location indication information of the resource block used by STA4 is: 1110 1101;
然后是STA1使用的资源块的位置指示信息,剔除STA3、STA4占用的10个资源块后,重新编号,如图7,在新的编号中STA1分配到的最大资源块编号为7,那么需要7个比特指示,STA1使用的资源块的位置指示信息为:1100 101;Then, it is the location indication information of the resource block used by STA1, and after re-numbering 10 resource blocks occupied by STA3 and STA4, as shown in FIG. 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 is needed. The bit indicates that the location indication information of the resource block used by STA1 is: 1100 101;
无需指示STA2分配到的资源块位置信息,默认为剩余的所有资源块;There is no need to indicate the resource block location information allocated by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括4个STA使用的资源块的位置指示信息,具体为1101 011110 11011100 101;总共21个比特;Obtaining the resource block location indication information subfield in the radio frame, including the location indication information of the resource blocks used by the four STAs, specifically 1101 011110 11011100 101; a total of 21 bits;
在无线帧物理层信令域中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、调度的STA的数量信息等,4个STA的资源块位置指示信息位于4个STA的资源块数量指示信息之后,并且置于信令域其他指示信息之后;The radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧物理层信令域来获知本次OFDMA传输资源分配信息;After receiving the radio frame, STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
STA3接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第一位;通过无线帧带 宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000047
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次分配到4个资源块;测算第二个STA资源块使用的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000048
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000049
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,查找到前4个1即可,得到1101 01,获知分配到的资源块编号为1、2、4、6;
The STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18. The number of bits used by the first STA, which is the number of resource blocks used by the first STA, is
Figure PCTCN2016081444-appb-000047
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of bits used for measuring the number of the second STA resource block used is
Figure PCTCN2016081444-appb-000048
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000049
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA. Information; at this point, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA3 performs information extraction in the resource block number indication information sub-domain, and the first four 1s are found. Obtaining 1101 01, knowing that the allocated resource block numbers are 1, 2, 4, and 6;
STA4接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000050
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000051
即4个比特,从资源块数量指示信息子域中提取6~9位,获知本次分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000052
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息,继续查找到前6个1即可,得到11101101,获知分配到的资源块编号为3、5、7、9、10、12;
After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000050
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000051
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the current resource allocation is 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000052
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA. Information; at this point, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA4 performs information extraction in the resource block number indication information sub-domain, and the resource block used by the first STA is removed. The location indication information, continue to find the first 6 ones, get 11101101, and know that the allocated resource block numbers are 3, 5, 7, 9, 10, 12;
STA1接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第三位;通过无线帧带 宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000053
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000054
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000055
即3个比特,从资源块数量指示信息子域中提取10~12位,获知本次分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA使用的资源块的位置指示信息,继续查找到前4个1即可,得到1100101,获知分配到的资源块编号为8、11、15、17;
The STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000053
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000054
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000055
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the current resource allocation is 4 resource blocks; since all resource blocks are scheduled, it is not necessary to indicate resource allocation indication information of the last STA; So far, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA1 performs information extraction in the resource block number indication information sub-domain, and the first and second STAs are used. The location indication information of the resource block, continue to find the first 4 1s, get 1100101, and know that the allocated resource block numbers are 8, 11, 15, and 17;
STA2接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第四位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000056
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000057
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000058
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA即自己的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,剔除第一个、第二个、第三个STA使用的资源块的位置指示信息,剩余的资源块即为调度给自己的资源。
The STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000056
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000057
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000058
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, it is not necessary to indicate the last STA, that is, its own resource. Allocating the indication information; so far, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the position indication of the resource block used by the first, second, and third STAs is removed. Information, the remaining resource blocks are the resources that are dispatched to themselves.
实施示例四 Implementation example four
本实施示例为下行OFDMA调度,资源分配指示信息位于无线帧物理层信令域中,4个STA标识信息按照分配到的资源块的最大编号升序排列,最后一个STA资源位置bitmap无需指示。资源块为频域资源块,发送方为AP。The present embodiment is a downlink OFDMA scheduling. The resource allocation indication information is located in the radio frame physical layer signaling domain, and the four STA identification information are arranged in ascending order according to the largest number of the allocated resource blocks, and the last STA resource location bitmap does not need to be indicated. The resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。The AP forms a BSS with multiple non-AP STAs.
AP使用DL OFDMA技术发送数据给STA1~STA4,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频域资源块。假定本次发送,AP使用40MHz带宽,共有18个频域资源块可以分配AP分配给4个STA的资源如图3所示:假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP uses DL OFDMA technology to send data to STA1 to STA4. The resource scheduling granularity is pre-defined by the protocol. Each 20MHz bandwidth is divided into 9 frequency domain resource blocks. Assume that the current transmission, the AP uses 40MHz bandwidth, a total of 18 frequency domain resource blocks can allocate resources allocated by the AP to the four STAs as shown in Figure 3: Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where the number The frequency domain resource blocks of 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource block numbers numbered 1, 2, 4, and 6 are allocated. For STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
本次调度AP按照4个STA分配到资源块最大编号升序调度,按照STA3(最大资源块编号6)、STA4(最大资源块编号12)、STA1(最大资源块编号17)、STA2(最大资源块编号18)的顺序进行资源分配指示;The scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
AP组建无线帧进行发送,调度指示信息在无线帧的物理层信令域中,4个STA的数据承载在无线帧的数据域部分,每个STA的数据使用的资源与本帧物理层信令域中的资源分配指示信息一致;The AP sets up a radio frame for transmission. The scheduling indication information is in the physical layer signaling domain of the radio frame. The data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer signaling of the current frame. The resource allocation indication information in the domain is consistent;
无线帧物理层信令域包含本次调度的带宽内的所有资源块是否都被分配指示信息;如果此指示信息指示所有资源块都被分配,则资源分配指示信息中无需包含最后一个被调度的STA使用的资源块的数量和位置指示信息,如果不是指示所有资源块都被分配,则仍需包含最后一个被调度的STA使用的资源块的数量和位置指示信息;假定本次调度,所有资源块都被分配给STA;The radio frame physical layer signaling field includes whether all resource blocks in the bandwidth of the current scheduling are allocated indication information; if the indication information indicates that all resource blocks are allocated, the resource allocation indication information does not need to include the last scheduled one. The number of resource blocks used by the STA and the location indication information. If it is not indicated that all resource blocks are allocated, the number and location indication information of the resource blocks used by the last scheduled STA still need to be included; Blocks are all assigned to the STA;
无线帧的物理层信令域中,4个STA的标识符AID或者经过处理的标识符PAID按照STA3、STA4、STA1、STA2的顺序依次排列;In the physical layer signaling domain of the radio frame, the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
无线帧的物理层信令域中,包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次排列:The physical layer signaling domain of the radio frame includes the quantity indication information of the resource blocks used by the four STAs, and is sequentially arranged in the order indicated by the identifiers of the four STAs:
首先是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000059
即5个比特,本次调度分配给STA3的资源块的数量为4个,故STA3使用的 资源块的数量指示信息为00100;
The first is the number of resource blocks used by STA3, and the number of occupied bits is
Figure PCTCN2016081444-appb-000059
That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
然后是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000060
即4个比特,本次调度分配给STA4的资源块的数量为6个,故STA4使用的资源块的数量指示信息为0110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000060
That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
再是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000061
即3个比特,本次调度分配给STA1的资源块的数量为4个,故STA1使用的资源块的数量指示信息为100;
Then, the number of resource blocks used by STA1 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000061
That is, 3 bits, the number of resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
无线帧物理层信令域中指示本次所有资源块都被分配,故无需指示STA2使用的资源块的数量指示信息,默认为剩余的所有资源块;The radio frame physical layer signaling domain indicates that all resource blocks are allocated this time, so there is no need to indicate the number of resource block indication information used by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括4个STA使用的资源块的数量指示信息,具体为001000110100,共12比特;Obtaining, according to the foregoing sequence, the resource block number indication information subfield in the radio frame, including the number indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
无线帧的物理层信令域中,包含4个STA使用的资源块位置指示信息,按照4个STA的标识符指示顺序依次指示,每个STA资源块位置采用bitmap的格式指示:In the physical layer signaling domain of the radio frame, the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
首先是STA3使用的资源块的位置指示信息,STA3占用的资源块的最大编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;The first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
然后是STA4使用的资源块的位置指示信息,剔除STA3占用的4个资源块后,重新编号,如图6,在新的编号中STA4分配到的最大资源块编号为8,那么需要8个比特指示,STA4使用的资源块的位置指示信息为:1110 1101;Then, it is the location indication information of the resource block used by STA4, and after re-numbering the four resource blocks occupied by STA3, as shown in FIG. 6, in the new number, the maximum resource block number allocated by STA4 is 8, and then 8 bits are needed. Indicates that the location indication information of the resource block used by STA4 is: 1110 1101;
然后是STA1使用的资源块的位置指示信息,剔除STA3、STA4占用的10个资源块后,重新编号,如图7,在新的编号中STA1分配到的最大资源块编号为7,那么需要7个比特指示,STA1使用的资源块的位置指示信息为:1100 101;Then, it is the location indication information of the resource block used by STA1, and after re-numbering 10 resource blocks occupied by STA3 and STA4, as shown in FIG. 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 is needed. The bit indicates that the location indication information of the resource block used by STA1 is: 1100 101;
无线帧物理层信令域中指示本次所有资源块都被分配,故无需指示STA2分配到的资源块位置信息,默认为剩余的所有资源块;The radio frame physical layer signaling domain indicates that all resource blocks are allocated this time, so it is not necessary to indicate the resource block location information allocated by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括:4个STA使用的资源块的位置指示信息,具体为1101 011110 11011100 101; 总共21个比特;Obtaining the resource block location indication information subfield in the radio frame according to the foregoing sequence, including: location indication information of the resource block used by the four STAs, specifically, 1101 011110 11011100 101; a total of 21 bits;
在无线帧物理层信令域中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、调度的STA的数量信息等,4个STA的资源块位置指示信息位于4个STA的资源块数量指示信息之后,并且置于信令域其他指示信息之后;The radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧物理层信令域来获知本次OFDMA传输资源分配信息;After receiving the radio frame, STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
STA3接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第一位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000062
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000063
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000064
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于无线帧物理层信令域中指示所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,查找到前4个1即可,1101 01,获知分配到的资源块编号为1、2、4、6;
The STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18. The number of bits used by the first STA, which is the number of resource blocks used by the first STA, is
Figure PCTCN2016081444-appb-000062
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000063
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000064
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the resource allocation indication information of the last STA; thus, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the STA3 performs information extraction in the resource block number indication information sub-domain. Find the first 4 1s, 1101 01, and know that the allocated resource block numbers are 1, 2, 4, and 6;
STA4接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000065
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000066
即4个比特,从资源块数量指示信息子域中提 取6~9位,获知本次分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000067
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于无线帧物理层信令域中指示所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息,继续查找到前6个1即可,得到1110 1101,获知分配到的资源块编号为3、5、7、9、10、12;
After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000065
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000066
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 6 resource blocks is obtained; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000067
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the resource allocation indication information of the last STA; thus, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the STA4 performs information extraction in the resource block number indication information sub-domain. The position indication information of the resource block used by the first STA is removed, and the first six 1s are continuously searched, and 1110 1101 is obtained, and the allocated resource block numbers are 3, 5, 7, 9, 10, and 12;
STA1接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000068
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000069
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000070
即3个比特,从资源块数量指示信息子域中提取10~12位,获知本次分配到4个资源块;由于无线帧物理层信令域中指示所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA的资源块位置指示信息,继续查找到前4个1即可,得到1100 101,获知分配到的资源块编号为8、11、15、17;
The STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000068
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000069
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000070
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the current allocation is 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, no indication is needed. The resource allocation indication information of the last STA; so far, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA1 performs information extraction in the resource block number indication information sub-domain, and the information is removed. The resource block location indication information of one and the second STA is continued, and the first four 1s are continuously searched, and 1100 101 is obtained, and the allocated resource block numbers are 8, 11, 15, and 17;
STA2接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第四位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000071
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分 配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000072
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000073
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于无线帧物理层信令域中指示所有资源块都被调度,故无需指示最后一个STA即自己的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,剔除第一个、第二个、第三个STA1、STA3、STA4的资源块位置指示信息,剩余的资源块即为调度给自己的资源。
The STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000071
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000072
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000073
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all the resource blocks are scheduled in the radio frame physical layer signaling domain, There is no need to indicate the last STA, that is, its own resource allocation indication information; thus, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the first, second, and third are eliminated. The resource block location indication information of STA1, STA3, and STA4, and the remaining resource blocks are resources allocated to itself.
实施示例五Implementation example five
本实施示例基于实施示例二,物理层信令域中包含资源分配指示信息是上行或者下行OFDMA调度指示,资源分配指示信息位于无线帧物理层信令域中,4个STA标识按照分配到的资源块最大编号升序排列,无线帧数据域中的数据是其他STA的数据。资源块为频域资源块,发送方为AP。The present embodiment is based on the implementation example 2, the physical layer signaling domain includes resource allocation indication information is an uplink or downlink OFDMA scheduling indication, the resource allocation indication information is located in a radio frame physical layer signaling domain, and four STA identifiers are according to the allocated resources. The block maximum number is in ascending order, and the data in the radio frame data field is the data of other STAs. The resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。The AP forms a BSS with multiple non-AP STAs.
AP发送数据给STA1~STA4之外的一个STA或者多个STA,同时发送资源调度分配信息给STA1~STA4,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频率资源块。假定本次发送,AP使用40MHz带宽,共有18个频率资源块可以分配,AP分配给4个STA的资源如图3所示:假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP sends data to one STA or multiple STAs other than STA1 to STA4, and simultaneously sends resource scheduling allocation information to STA1 to STA4. The resource scheduling granularity is pre-defined by the protocol, and each 20 MHz bandwidth is divided into 9 frequency resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission. A total of 18 frequency resource blocks can be allocated. The resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that the initial number of the 18 frequency domain resource blocks is 1 to 18, where the number is The frequency domain resource blocks of 8, 11, 15, and 17 are allocated to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are allocated to STA2, and the frequency domain resource block numbers numbered 1, 2, 4, and 6 are allocated. For STA3, the frequency domain resource blocks numbered 3, 5, 7, 9, 10, 12 are allocated to STA4.
AP组建无线帧进行发送,调度指示信息在无线帧的物理层信令域中调度指示信息是发送给STA1~STA4的,无线帧的数据域部分承载其他STA的数据,假定为STA5; The AP sets up a radio frame for transmission, and the scheduling indication information is sent to STA1 to STA4 in the physical layer signaling domain of the radio frame, and the data domain part of the radio frame carries data of other STAs, which is assumed to be STA5;
无线帧的物理层信令域中,包含资源分配指示信息是上行资源分配指示信息还是下行资源分配指示信息,假定本次资源分配指示信息是上行资源分配指示信息;The physical layer signaling domain of the radio frame includes the resource allocation indication information as the uplink resource allocation indication information or the downlink resource allocation indication information, and assumes that the current resource allocation indication information is the uplink resource allocation indication information;
本次调度AP按照4个STA分配到资源块最大编号升序调度,按照STA3(最大资源块编号6)、STA4(最大资源块编号12)、STA1(最大资源块编号17)、STA2(最大资源块编号18)的顺序进行资源分配指示;The scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
无线帧的物理层信令域中,4个STA的标识符AID或者经过处理的标识符PAID按照STA3、STA4、STA1、STA2的顺序依次排列;In the physical layer signaling domain of the radio frame, the identifiers AID of the four STAs or the processed identifiers PAID are sequentially arranged in the order of STA3, STA4, STA1, and STA2;
无线帧的物理层信令域中,包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次指示:The physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
首先是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000074
即5个比特,本次调度分配给STA3的资源块的数量为4个,故STA3使用的资源块的数量指示信息为00100;
The first is the number of resource blocks used by STA3, and the number of occupied bits is
Figure PCTCN2016081444-appb-000074
That is, 5 bits, the number of resource blocks allocated to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
然后是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000075
即4个比特,本次调度分配给STA4的资源块的数量为6个,故STA4使用的资源块的数量指示信息为0110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000075
That is, 4 bits, the number of resource blocks allocated to STA4 is 6 in this scheduling, so the number of resource blocks used by STA4 is 0110;
再是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000076
即3个比特,本次调度分配给STA1的资源块的数量为4个,故STA1使用的资源块的数量指示信息为100;
Then, the number of resource blocks used by STA1 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000076
That is, 3 bits, the number of resource blocks allocated to STA1 in this scheduling is 4, so the number of resource blocks used by STA1 indicates 100.
再是STA2使用的资源块的数量指示信息,剩余的可分配给STA2的资源块数量为4个,4为2的2次幂,故占用的比特数为2+1,即3个比特,故STA2使用的资源块的数量指示信息为100;Then, the number of resource blocks used by STA2 indicates information. The remaining number of resource blocks that can be allocated to STA2 is four, and 4 is 2 to the power of 2, so the number of occupied bits is 2+1, that is, 3 bits. The number of resource blocks used by STA2 indicates that the information is 100.
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括4个STA使用的资源块的数量指示信息,具体为001000110100100;Obtaining, according to the foregoing sequence, the resource block number indication information subfield in the radio frame, including the number indication information of the resource blocks used by the four STAs, specifically 001000110100100;
无线帧的物理层信令域中,包含4个STA使用的资源块位置指示信息,按照4个STA的标识符指示顺序依次指示,每个STA资源块位置采用bitmap的格式指示:In the physical layer signaling domain of the radio frame, the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
首先是STA3使用的资源块的位置指示信息,STA3占用的资源块的最大 编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;First, the location indication information of the resource block used by STA3, and the maximum resource block occupied by STA3. The number is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
然后是STA4使用的资源块的位置指示信息,剔除STA3占用的4个资源块后,重新编号,如图6,在新的编号中STA4分配到的最大资源块编号为8,那么需要8个比特指示,STA4使用的资源块的位置指示信息为:1110 1101;Then, it is the location indication information of the resource block used by STA4, and after re-numbering the four resource blocks occupied by STA3, as shown in FIG. 6, in the new number, the maximum resource block number allocated by STA4 is 8, and then 8 bits are needed. Indicates that the location indication information of the resource block used by STA4 is: 1110 1101;
然后是STA1使用的资源块的位置指示信息,剔除STA3、STA4占用的10个资源块后,重新编号,如图7,在新的编号中STA1分配到的最大资源块编号为7,那么需要7个比特指示,STA1使用的资源块的位置指示信息为:1100 101;Then, it is the location indication information of the resource block used by STA1, and after re-numbering 10 resource blocks occupied by STA3 and STA4, as shown in FIG. 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 is needed. The bit indicates that the location indication information of the resource block used by STA1 is: 1100 101;
最后是STA2使用的资源块的位置指示信息,剔除STA1、STA3、STA4占用的14个资源块后,重新编号,剩余的6个资源块都分配给STA4在新的编号中STA4分配到的最大资源块编号为4,那么需要4个比特指示,STA2使用的资源块的位置指示信息为:1111;The last is the location indication information of the resource block used by STA2, and after re-numbering the 14 resource blocks occupied by STA1, STA3, and STA4, the remaining 6 resource blocks are allocated to the maximum resource allocated by STA4 in STA4 in the new number. The block number is 4, then 4 bits are required, and the location indication information of the resource block used by STA2 is: 1111;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括4个STA使用的资源块的位置指示信息,具体为1101 011110 11011100 1011111;总共25个比特;Obtaining, in the foregoing sequence, the resource block location indication information subfield in the radio frame, including the location indication information of the resource block used by the four STAs, specifically, 1101 011110 11011100 1011111; a total of 25 bits;
在无线帧物理层信令域中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、调度的STA的数量信息等,4个STA的资源块位置指示信息位于4个STA的资源块数量指示信息之后,并且置于信令域其他指示信息之后;The radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧物理层信令域来获知本次OFDMA传输资源分配信息为上行资源分配指示信息;After receiving the radio frame, the STA1, the STA2, the STA3, and the STA4, by analyzing the radio frame physical layer signaling domain, learn that the current OFDMA transmission resource allocation information is the uplink resource allocation indication information;
STA3接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第一位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000077
即5个比特,从资源块数量指示信息子域中提取前5个比特,获 知本次分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000078
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000079
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA资源块数量指示使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,查找到前4个1即可,得到1101 01,获知分配到的资源块编号为1、2、4、6;
The STA3 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the first position of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18. The number of bits used by the first STA, which is the number of resource blocks used by the first STA, is
Figure PCTCN2016081444-appb-000077
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000078
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000079
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of the fourth STA resource blocks indicates that the number of used bits is 3 bits, and thus the number of resource block indication information sub-domains is 15 bits in total, and the resource block position indication information sub-domain is obtained. The starting position of STA3 is used to extract information in the resource block number indication information sub-domain, and the first four 1s are found, and 1101 is obtained, and the allocated resource block numbers are 1, 2, 4, and 6;
STA4接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为,即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000080
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000081
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA使用的资源块的数量指示信息使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息,继续查找到前6个1即可,得到11101101,获知分配到的资源块编号为3、5、7、9、10、12;
After receiving the radio frame, the STA4 first learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the second bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18. The number of resource blocks used by the first STA indicates that the number of bits used by the information is 5 bits, and the first 5 are extracted from the resource block number indication information subfield. Bit, knowing that the first STA is allocated to 4 resource blocks; measuring the number of bits of the second STA, that is, the number of resource blocks used by itself, indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000080
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000081
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and thus the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby obtaining the resource block position. Instructing the start position of the information sub-domain, STA4 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first STA, and continues to find the first six ones, and obtains 11101101, and obtains the allocation. The resource block numbers are 3, 5, 7, 9, 10, 12;
STA1接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18 个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000082
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000083
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000084
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA使用的资源块的数量指示信息使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA使用的资源块的位置指示信息,继续查找到前4个1即可,得到1100 101,获知分配到的资源块编号为8、11、15、17;
The STA1 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the third bit of the four STAs; the bandwidth of the current use is learned by the radio frame bandwidth indication information. For 40MHz, the total number of schedulable resource blocks is 18. The number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000082
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000083
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000084
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and the third STA is allocated to 4 resource blocks; the number of resource blocks used by the fourth STA is measured to indicate the number of bits used by the information, Since the remaining 4 resource blocks are allocated, the number of resource blocks used by the fourth STA indicates that the number of bits used by the information is 3 bits, and thus the number of resource blocks indicates that the information sub-domain is a total of 15 bits, thereby obtaining the resource block position. Instructing the start position of the information sub-domain, STA1 performs information extraction in the resource block number indication information sub-domain, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s, and obtains 1100 101, knowing that the allocated resource block numbers are 8, 11, 15, and 17;
STA2接收到此无线帧,首先根据调度的STA的数量信息获知本次调度4个STA,自己的资源分配指示信息位于4个STA的第四位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000085
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000086
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000087
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;测算第四个STA即自己使用的资源块的数量指示信息使用的比特数,由于剩余4个可分配的资源块,故第四个STA即自己使用的资源块的数量指示信息使用的比特数为3个比特,至此获知资源块数量指示信息子域总共15比特,进而获知资源块位置指示信息子域的开始位置,STA2在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA使用的资源块的位置指示信息,继续查找到前4个1即可,1111,获知分配到的资源块编号为13、14、16、18;
The STA2 receives the radio frame, and firstly learns that the four STAs are scheduled according to the number of scheduled STAs, and the resource allocation indication information of the STA is located in the fourth bit of the four STAs. The bandwidth of the current use is learned by the radio frame bandwidth indication information. At 40 MHz, the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000085
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000086
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000087
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; and the fourth STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. The number of the resource blocks used by the fourth STA, which is the number of bits used by the fourth STA, is 3 bits, and the number of resource blocks indicates that the information sub-domain is a total of 15 bits. Knowing the start position of the resource block location indication information subfield, STA2 performs information extraction in the resource block number indication information subfield, and eliminates the location indication information of the resource block used by the first and second STAs, and continues to find the first four 1s. That is, 1111, it is known that the allocated resource block numbers are 13, 14, 16, and 18;
STA5接收到此无线帧,解析无线帧物理层信令域中的资源分配指示信息,是一个上行资源分配指示信息,但是不包含自己的资源分配指示信息,解析信令域中的其他信息,数据域包含自己的数据,STA5继续接收解析无线帧的数据部分。The STA5 receives the radio frame and parses the resource allocation indication information in the physical layer signaling domain of the radio frame, and is an uplink resource allocation indication information, but does not include its own resource allocation indication information, and parses other information in the signaling domain. The domain contains its own data, and STA5 continues to receive the data portion of the resolved radio frame.
实施示例六Implementation example six
本实施示例基于实施示例三下行OFDMA调度,资源分配指示信息位于无线帧物理层信令域中,采用组地址指示4个STA,同时包含位置调整顺序指示信息,最后一个STA资源位置bitmap无需指示;资源块为频域资源块,发送方为AP。The present embodiment is based on the implementation example three downlink OFDMA scheduling, where the resource allocation indication information is located in the radio frame physical layer signaling domain, and the group address is used to indicate four STAs, and the location adjustment sequence indication information is included, and the last STA resource location bitmap does not need to be indicated; The resource block is a frequency domain resource block, and the sender is an AP.
AP与多个non-AP STA组成一个BSS。non-AP STA加入BSS之后,如果non-AP STA支持多用户发射或者接收处理,例如MU-MIMO、OFDMA等,AP可以给non-AP STA分配一个或者多个组号。The AP forms a BSS with multiple non-AP STAs. After the non-AP STA joins the BSS, if the non-AP STA supports multi-user transmission or reception processing, such as MU-MIMO, OFDMA, etc., the AP may assign one or more group numbers to the non-AP STA.
AP使用DL OFDMA技术发送数据给STA1~STA4,资源调度粒度为协议预先规定好的,每个20MHz带宽分为9个频率资源块。假定本次发送,AP使用40MHz带宽,共有18个频率资源块可以分配且本次调度所有资源块都被分配,AP分配给4个STA的资源如图3所示:假设18个频域资源块的初始编号为1~18,其中编号为8、11、15、17的频域资源块分配给STA1,编号为13、14、16、18的频域资源块分配给STA2,编号为1、2、4、6的频域资源块分配给STA3,编号为3、5、7、9、10、12的频域资源块分配给STA4。The AP uses DL OFDMA technology to send data to STA1 to STA4. The resource scheduling granularity is pre-defined by the protocol. Each 20MHz bandwidth is divided into 9 frequency resource blocks. Assume that the AP uses 40MHz bandwidth for the current transmission. A total of 18 frequency resource blocks can be allocated and all resource blocks are allocated. The resources allocated by the AP to the four STAs are as shown in Figure 3. Assume that 18 frequency domain resource blocks are assumed. The initial number is 1 to 18, and the frequency domain resource blocks numbered 8, 11, 15, and 17 are assigned to STA1, and the frequency domain resource blocks numbered 13, 14, 16, and 18 are assigned to STA2, numbered 1, 2 The frequency domain resource blocks of 4, 6 are allocated to STA3, and the frequency domain resource blocks numbered 3, 5, 7, 9, 10, and 12 are allocated to STA4.
本次调度AP按照4个STA分配到资源块最大编号升序调度,按照STA3(最大资源块编号6)、STA4(最大资源块编号12)、STA1(最大资源块编号17)、STA2(最大资源块编号18)的顺序进行资源分配指示;The scheduling AP is allocated to the maximum number of resource blocks in ascending order according to the four STAs, according to STA3 (maximum resource block number 6), STA4 (maximum resource block number 12), STA1 (maximum resource block number 17), and STA2 (maximum resource block). Resource allocation indication in the order of number 18);
AP组建无线帧进行发送,调度指示信息在无线帧的物理层信令域中,4个STA的数据承载在无线帧的数据域部分,每个STA的数据使用的资源与本帧物理层信令域中的资源分配指示信息一致;The AP sets up a radio frame for transmission. The scheduling indication information is in the physical layer signaling domain of the radio frame. The data of the four STAs is carried in the data domain part of the radio frame, and the resources used by each STA and the physical layer signaling of the current frame. The resource allocation indication information in the domain is consistent;
假定STA1、STA2、STA3和STA4在同一个组内,组标识即组号为GID1,4个STA在组内的位置顺序是STA1位于第一个位置,STA2位于第二个位置, STA3位于第三个位置,STA4位于第四个位置;It is assumed that STA1, STA2, STA3, and STA4 are in the same group, and the group ID is the group number is GID1. The order of the four STAs in the group is that STA1 is in the first position and STA2 is in the second position. STA3 is in the third position and STA4 is in the fourth position;
无线帧的物理层信令域中,包含组标识信息,GID1,同时包含STA资源分配指示信息指示顺序与其在组内位置顺序调整信息;基于其在组内的位置信息,调整后的资源分配指示信息指示顺序为STA3、STA4、STA1、STA2;The physical layer signaling domain of the radio frame includes group identification information, GID1, and includes the STA resource allocation indication information indicating sequence and its positional order adjustment information in the group; and the adjusted resource allocation indication based on the location information in the group. The information indication order is STA3, STA4, STA1, STA2;
无线帧的物理层信令域中,包含4个STA使用的资源块的数量指示信息,按照4个STA的标识符指示顺序依次指示:The physical layer signaling domain of the radio frame includes the number indication information of the resource blocks used by the four STAs, and is sequentially indicated in the order indicated by the identifiers of the four STAs:
首先是STA3使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000088
即5个比特,本次调度分配给STA3的数量为4个,故STA3使用的资源块的数量指示信息为00100;
The first is the number of resource blocks used by STA3, and the number of occupied bits is
Figure PCTCN2016081444-appb-000088
That is, 5 bits, the number of allocations to STA3 in this scheduling is 4, so the number of resource blocks used by STA3 is 00100;
然后是STA4使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000089
即4个比特,本次调度分配给STA4的数量为6个,故STA3使用的资源块的数量指示信息为0110;
Then, the number of resource blocks used by STA4 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000089
That is, 4 bits, the number of allocations to STA4 is 6 in this scheduling, so the number of resource blocks used by STA3 is 0110;
再是STA1使用的资源块的数量指示信息,占用的比特数为
Figure PCTCN2016081444-appb-000090
即3个比特,本次调度分配给STA1的数量为4个,故STA3使用的资源块的数量指示信息为100;
Then, the number of resource blocks used by STA1 indicates information, and the number of occupied bits is
Figure PCTCN2016081444-appb-000090
That is, 3 bits, the number of allocations to STA1 is 4, and the number of resource blocks used by STA3 is 100.
无需指示STA2使用的资源块数量,默认为剩余的所有资源块;There is no need to indicate the number of resource blocks used by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块数量指示信息子域,包括4个STA使用的资源块的数量指示信息,具体为001000110100,共12比特;Obtaining, according to the foregoing sequence, the resource block number indication information subfield in the radio frame, including the number indication information of the resource blocks used by the four STAs, specifically 001000110100, a total of 12 bits;
无线帧的物理层信令域中,包含4个STA使用的资源块位置指示信息,按照4个STA的标识符指示顺序依次指示,每个STA资源块位置采用bitmap的格式指示:In the physical layer signaling domain of the radio frame, the resource block location indication information used by the four STAs is sequentially indicated according to the identifier indication order of the four STAs, and the location of each STA resource block is indicated by a bitmap format:
首先是STA3使用的资源块的位置指示信息,STA3占用的资源块的最大编号为6,那么需要6个比特指示,STA3使用的资源块的位置指示信息为:1101 01;The first is the location indication information of the resource block used by STA3, and the maximum number of the resource block occupied by STA3 is 6, then 6 bits are required, and the location indication information of the resource block used by STA3 is: 1101 01;
然后是STA4使用的资源块的位置指示信息,剔除STA3占用的4个资源块后,重新编号,如图6,在新的编号中STA4分配到的最大资源块编号为8,那么需要8个比特指示,STA3使用的资源块的位置指示信息为:1110 1101;Then, it is the location indication information of the resource block used by STA4, and after re-numbering the four resource blocks occupied by STA3, as shown in FIG. 6, in the new number, the maximum resource block number allocated by STA4 is 8, and then 8 bits are needed. Indicates that the location indication information of the resource block used by STA3 is: 1110 1101;
然后是STA1使用的资源块的位置指示信息,剔除STA3、STA4占用的 10个资源块后,重新编号,如图7,在新的编号中STA1分配到的最大资源块编号为7,那么需要7个比特指示,STA3使用的资源块的位置指示信息为:1100 101;Then, it is the location indication information of the resource block used by STA1, and the STA3 and STA4 are excluded. After the 10 resource blocks are renumbered, as shown in Figure 7, in the new number, the maximum resource block number assigned by STA1 is 7, then 7 bits are required, and the location indication information of the resource block used by STA3 is: 1100 101;
无需指示STA2使用的资源块位置,默认为剩余的所有资源块;There is no need to indicate the location of the resource block used by STA2, and the default is all remaining resource blocks;
按照上述顺序最后得到无线帧中的资源块位置指示信息子域,包括4个STA使用的资源块的位置指示信息,具体为1101 011110 11011100 101;总共21个比特;Obtaining the resource block location indication information subfield in the radio frame, including the location indication information of the resource blocks used by the four STAs, specifically 1101 011110 11011100 101; a total of 21 bits;
在无线帧物理层信令域中还携带其他信令指示信息,例如无线帧传输使用的带宽信息、调度的STA的数量信息等,4个STA的资源块位置指示信息位于4个STA的资源块数量指示信息之后,并且置于信令域其他指示信息之后;The radio frame physical layer signaling domain further carries other signaling indication information, such as bandwidth information used for radio frame transmission, number of scheduled STAs, and the like, and resource block location indication information of four STAs is located in resource blocks of four STAs. After the quantity indication information, and after the other indication information in the signaling domain;
STA1、STA2、STA3和STA4接收到此无线帧之后,通过解析无线帧物理层信令域来获知本次OFDMA传输资源分配信息;After receiving the radio frame, STA1, STA2, STA3, and STA4 learn the current OFDMA transmission resource allocation information by parsing the radio frame physical layer signaling domain;
STA3接收到此无线帧,通过解析组标识以及STA资源分配指示信息指示顺序与其在组内位置顺序调整信息,获知自己的资源分配指示信息位于4个STA的第一位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000091
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知本次分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000092
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000093
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA3在资源块数量指示信息子域进行信息提取,查找到前4个1即可,得到1101 01,获知分配到的资源块编号为1、2、4、6;
Receiving the radio frame, the STA3 knows that the resource allocation indication information of the STA is located in the first position of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its in-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of bits used by the first STA, that is, the number of resource blocks used by the first STA is
Figure PCTCN2016081444-appb-000091
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the current allocation to 4 resource blocks is obtained; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000092
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000093
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA. Information; at this point, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA3 performs information extraction in the resource block number indication information sub-domain, and the first four 1s are found. Obtaining 1101 01, knowing that the allocated resource block numbers are 1, 2, 4, and 6;
STA4接收到此无线帧,通过解析组标识以及STA资源分配指示信息指 示顺序与其在组内位置顺序调整信息,获知自己的资源分配指示信息位于4个STA的第二位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000094
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000095
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000096
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA4在资源块数量指示信息子域进行信息提取,剔除第一个STA使用的资源块的位置指示信息,继续查找到前6个1即可,得到1110 1101,获知分配到的资源块编号为3、5、7、9、10、12;
The STA4 receives the radio frame, and determines that the resource allocation indication information of the UE is located in the second bit of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000094
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the second STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000095
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000096
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA. Information; at this point, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and the STA4 performs information extraction in the resource block number indication information sub-domain, and the resource block used by the first STA is removed. The location indication information, continue to find the first 6 ones, get 1110 1101, and know that the allocated resource block numbers are 3, 5, 7, 9, 10, 12;
STA1接收到此无线帧,通过解析组标识以及STA资源分配指示信息指示顺序与其在组内位置顺序调整信息,获知自己的资源分配指示信息位于4个STA的第三位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000097
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000098
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA即自己使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000099
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,STA1在资源块数量指示信息子域进行信息提取,剔除第一个、第二个STA3、STA4使用的资源块的位置指示信息,继续查找到前4个1即可,得到1100 101,获知 分配到的资源块编号为8、11、15、17;
The STA1 receives the radio frame, and determines that the resource allocation indication information of the UE is located in the third bit of the four STAs by using the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group position order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000097
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000098
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and it is learned that the second STA is allocated to 6 resource blocks; and the third STA, that is, the number of resource blocks used by itself, indicates the bits used by the information. Number is
Figure PCTCN2016081444-appb-000099
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, there is no need to indicate the resource allocation indication of the last STA. Information; at this point, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is known, and STA1 performs information extraction in the resource block number indication information sub-domain, and the first and second STA3 are eliminated. The position indication information of the resource block used by the STA4 is continued, and the first four 1s are continuously searched, and 1100 101 is obtained, and the allocated resource block numbers are 8, 11, 15, and 17;
STA2接收到此无线帧,通过解析组标识以及STA资源分配指示信息指示顺序与其在组内位置顺序调整信息,获知自己的资源分配指示信息位于4个STA的第四位;通过无线帧带宽指示信息获知本次使用的带宽为40MHz,总共可调度的资源块数量为18个,第一个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000100
即5个比特,从资源块数量指示信息子域中提取前5个比特,获知第一个STA分配到4个资源块;测算第二个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000101
即4个比特,从资源块数量指示信息子域中提取6~9位,获知第二个STA分配到6个资源块;测算第三个STA使用的资源块的数量指示信息使用的比特数为
Figure PCTCN2016081444-appb-000102
即3个比特,从资源块数量指示信息子域中提取10~12位,获知第三个STA分配到4个资源块;由于所有资源块都被调度,故无需指示最后一个STA即自己的资源分配指示信息;至此获知资源块数量指示信息子域总共12比特,进而获知资源块位置指示信息子域的开始位置,剔除第一个、第二个、第三个STA使用的资源块的位置指示信息,剩余的资源块即为调度给自己的资源。
The STA2 receives the radio frame, and obtains the resource allocation indication information of the fourth STA by the parsing group identifier and the STA resource allocation indication information indicating sequence and its intra-group location order adjustment information; It is known that the bandwidth used in this time is 40 MHz, and the total number of resource blocks that can be scheduled is 18, and the number of resource blocks used by the first STA indicates that the number of bits used by the information is
Figure PCTCN2016081444-appb-000100
That is, 5 bits, the first 5 bits are extracted from the resource block number indication information sub-domain, and the first STA is allocated to 4 resource blocks; the number of resource blocks used by the second STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000101
That is, 4 bits, 6 to 9 bits are extracted from the resource block number indication information sub-domain, and the second STA is allocated to 6 resource blocks; the number of resource blocks used by the third STA is measured to indicate that the number of bits used by the information is
Figure PCTCN2016081444-appb-000102
That is, 3 bits, 10-12 bits are extracted from the resource block number indication information sub-domain, and it is learned that the third STA is allocated to 4 resource blocks; since all resource blocks are scheduled, it is not necessary to indicate the last STA, that is, its own resource. Allocating the indication information; so far, the resource block number indication information sub-domain is a total of 12 bits, and then the start position of the resource block position indication information sub-domain is obtained, and the position indication of the resource block used by the first, second, and third STAs is removed. Information, the remaining resource blocks are the resources that are dispatched to themselves.
实施例三、一种资源调度的指示装置,设置于发送方设备中,如图8所示,包括:Embodiment 3: A resource scheduling indication device is disposed in a sender device, as shown in FIG. 8, and includes:
生成模块81,设置成生成资源分配指示信息;The generating module 81 is configured to generate resource allocation indication information;
发送模块82,设置成发送包含所述资源分配指示信息的无线帧给接收方;The sending module 82 is configured to send a radio frame including the resource allocation indication information to the receiver;
所述资源分配指示信息包括N个站点STA的资源分配指示信息;每个STA的资源分配指示信息至少包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;The resource allocation indication information includes resource allocation indication information of the N station STAs; the resource allocation indication information of each STA includes at least: the quantity indication information of the resource block used by the STA and the location indication information of the resource block used by the STA; N≥1;
其中,第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000103
其中,
Figure PCTCN2016081444-appb-000104
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;
The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000103
among them,
Figure PCTCN2016081444-appb-000104
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1≤n≤N;
第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所 述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite The number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述生成模块81生成资源分配指示信息包括:Optionally, the generating, by the generating module 81, the resource allocation indication information includes:
所述生成模块81依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。The generating module 81 sequentially generates resource allocation indication information for the N STAs. Each time, in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA meets: The maximum number R m-max of the resource blocks allocated by the STA is the minimum value among the maximum numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
可选地,所述无线帧还包含所述N个STA的标识信息,且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。Optionally, the radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs are arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
可选地,在所述无线帧中,所述N个STA使用的资源块的数量指示信息和/或位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。Optionally, in the radio frame, the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is arranged after all other indication information.
可选地,在所述无线帧中,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息。Optionally, in the radio frame, the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the resources used by the N STAs The number of blocks indicates that there is no other information between the messages.
可选地,当第N个调度的STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth scheduled STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource of the Nth STA. The allocation indication information is the default indication information.
可选地,所述无线帧还包含本无线帧调度的资源的大小信息。Optionally, the radio frame further includes size information of resources scheduled by the radio frame.
可选地,所述无线帧还包含资源块粒度信息、和/或本无线帧调度的STA的数量信息。 Optionally, the radio frame further includes resource block granularity information, and/or quantity information of STAs scheduled by the current radio frame.
可选地,所述无线帧还包含指示是否所有资源块都被调度的指示信息。Optionally, the radio frame further includes indication information indicating whether all resource blocks are scheduled.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息完全相同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is exactly the same.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息完全不同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is completely different.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame, and the identifier information of the receiver STA of the data part carried by the radio frame and the identifier of the STA included in the resource allocation indication information The information is not exactly the same.
可选地,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同包括以下情况中的任一种:Optionally, the identifier information of the receiver STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information, and includes any one of the following situations:
所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
可选地,所述无线帧还包含STA的组标识指示信息。Optionally, the radio frame further includes group identification indication information of the STA.
可选地,所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。 Optionally, the radio frame further includes correspondence information of an arrangement order of the resource allocation indication information of the STA and a position order of the STA in the group.
其它实现细节可参见实施例一。For other implementation details, refer to the first embodiment.
实施例四、一种资源调度的指示装置,设置于STA中,如图9所示,包括:Embodiment 4: A resource scheduling indication device is configured in the STA, as shown in FIG. 9, and includes:
接收模块91,设置成接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息至少包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;其中,第n个STA使用的资源块的数量指示信息占用的比特数量为:
Figure PCTCN2016081444-appb-000105
其中,
Figure PCTCN2016081444-appb-000106
表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
The receiving module 91 is configured to receive a radio frame that includes resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the resource block used by the STA The quantity indication information and the location indication information of the resource block used by the STA; N≥1; wherein the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
Figure PCTCN2016081444-appb-000105
among them,
Figure PCTCN2016081444-appb-000106
The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
处理模块92,设置成根据所述资源分配指示信息确定分配给所在STA的资源块。The processing module 92 is configured to determine, according to the resource allocation indication information, a resource block allocated to the STA where the STA is located.
可选地,对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。Optionally, for the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, where x is A positive integer.
可选地,所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。Optionally, in the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
可选地,当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。Optionally, when the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication of the Nth STA. The information is the default indication.
可选地,所述无线帧还包含以下任一种或任几种信息:Optionally, the radio frame further includes any one or any of the following information:
指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。 Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
可选地,所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。Optionally, the resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
可选地,所述资源分配指示信息中还包括本无线帧所分配的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;其中,所述N个STA使用的资源块的位置指示信息及N个STA使用的资源块的数量指示信息均连续指示,且所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息;Optionally, the resource allocation indication information further includes indication information of a total number of resource blocks allocated by the current radio frame, and indication information of a resource indication order of each STA, where the resource blocks used by the N STAs are used. The location indication information and the quantity indication information of the resource blocks used by the N STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs. And having no other information between the number of resource blocks used by the N STAs;
所述处理模块92根据所述资源分配指示信息确定分配给所在STA的资源块包括:The processing module 92 determines, according to the resource allocation indication information, that the resource block allocated to the STA is:
所述处理模块92根据所述每个STA的资源指示顺序的指示信息获知所在STA的排序;根据本无线帧调度的资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据所在STA使用的资源块的数量指示信息获取分配给所在STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在所在STA之前的STA使用的资源块的位置指示信息,得到所在STA使用的资源块的位置指示信息,根据所在STA使用的资源块的位置指示信息获知分配给所在STA的资源块的位置。The processing module 92 learns the order of the STAs according to the indication information of the resource indication order of each STA; and confirms the total number of resource blocks according to the indication information of the total number of resource blocks scheduled by the radio frame, according to the total number of resource blocks and The number of the scheduled STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STAs is obtained according to the number of resource blocks used by the STAs; The sum of the number of bits finds the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STA before the STA is removed, and the location of the resource block used by the STA is obtained. The indication information is used to know the location of the resource block allocated to the STA according to the location indication information of the resource block used by the STA.
可选地,所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;Optionally, the indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
或者,or,
所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
可选地,所述无线帧中还包括所调度的STA的数量信息。所述处理模块92可以根据该数量信息确认调度的STA的数量;调度的STA数量也可以是预设的值,或者可以根据标识信息的个数确认。Optionally, the radio frame further includes quantity information of the scheduled STAs. The processing module 92 may confirm the number of scheduled STAs according to the quantity information; the number of scheduled STAs may also be a preset value, or may be confirmed according to the number of identification information.
可选地,资源块的总数量的指示信息包括:所调度的资源的大小信息和 资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总数量;Optionally, the indication information of the total number of resource blocks includes: size information of the scheduled resources, and And the total number of the resource blocks is determined according to the resource scheduling granularity and the size information of the scheduled resources, and the total number of resource blocks is calculated according to the resource scheduling granularity and the size information of the scheduled resources;
或者,or,
所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
也可以所调度的资源的大小信息为预设的值,资源块的总数量的指示信息包括资源调度粒度;还可以所调度的资源块的总数量为预设的值,此时无线帧可以不包括资源块的总数量的指示信息。The size information of the scheduled resource may be a preset value, and the indication information of the total number of resource blocks includes a resource scheduling granularity; and the total number of the scheduled resource blocks may be a preset value, and the wireless frame may not be Includes indications of the total number of resource blocks.
可选地,所述资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。Optionally, the indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
其它实现细节可参见实施例二。For other implementation details, see Embodiment 2.
实施例五、一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述实施例一或实施例二的方法。Embodiment 5 A computer readable storage medium storing computer executable instructions for performing the method of Embodiment 1 or Embodiment 2 above.
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成,所述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地,上述实施例中的模块/单元可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。本发明实施例不限制于任何特定形式的硬件和软件的结合。One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, the modules/units in the foregoing embodiments may be implemented in the form of hardware or in the form of software functional modules. Embodiments of the invention are not limited to any specific form of combination of hardware and software.
工业实用性Industrial applicability
本发明实施例提供了一种资源调度指示方案,可以支持灵活的资源调度分配,可以极大的压缩资源分配指示信息的开销,进而提高指示效率,提高网络的传输效率。 The embodiment of the invention provides a resource scheduling indication scheme, which can support flexible resource scheduling allocation, and can greatly reduce the overhead of resource allocation indication information, thereby improving indication efficiency and improving network transmission efficiency.

Claims (56)

  1. 一种资源调度的指示方法,包括:A method for indicating resource scheduling includes:
    发送方生成资源分配指示信息;The sender generates resource allocation indication information;
    所述发送方发送包含所述资源分配指示信息的无线帧给接收方;Transmitting, by the sender, a radio frame that includes the resource allocation indication information to a receiver;
    所述资源分配指示信息包括N个站点STA的资源分配指示信息;每个STA的资源分配指示信息包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;The resource allocation indication information includes resource allocation indication information of the N stations; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the location indication information of the resource block used by the STA; ≥1;
    第n个STA使用的资源块的数量指示信息占用的比特数量为:
    Figure PCTCN2016081444-appb-100001
    Figure PCTCN2016081444-appb-100002
    表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;
    The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
    Figure PCTCN2016081444-appb-100001
    Figure PCTCN2016081444-appb-100002
    The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1≤n≤N;
    第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite The number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
  2. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。For the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
  3. 如权利要求1所述的方法,其中,所述发送方生成资源分配指示信息包括:The method of claim 1, wherein the generating the resource allocation indication information by the sender comprises:
    依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。Generating resource allocation indication information to the N STAs in sequence; each time in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies: allocated for the STA The maximum number R m-max of the resource block is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
  4. 如权利要求3所述的方法,其中:The method of claim 3 wherein:
    所述无线帧还包含所述N个STA的标识信息,且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。 The radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs is arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
  5. 如权利要求4所述的方法,其中:The method of claim 4 wherein:
    在所述无线帧中,所述N个STA使用的资源块的数量指示信息和/或位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。In the radio frame, the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
  6. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。In the radio frame, the location indication information of the resource blocks used by the N STAs is arranged after all other indication information.
  7. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    在所述无线帧中,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息。In the radio frame, the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the number of resource blocks used by the N STAs is indicated. There is no other information between the messages.
  8. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。When the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is the default. Instructions.
  9. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    所述无线帧还包含本无线帧调度的资源的大小信息。The radio frame further includes size information of resources scheduled by the radio frame.
  10. 如权利要求1或9所述的方法,其中:The method of claim 1 or 9, wherein:
    所述无线帧还包含资源块粒度信息,和/或本无线帧调度的STA的数量信息。The radio frame further includes resource block granularity information, and/or information about the number of STAs scheduled by the radio frame.
  11. 如权利要求9所述的方法,其中:The method of claim 9 wherein:
    所述无线帧还包含指示是否所有资源块都被调度的指示信息。The radio frame also includes indication information indicating whether all resource blocks are scheduled.
  12. 如权利要求1所述的方法,其中,所述无线帧还包含以下任一种或任几种信息:The method of claim 1 wherein said wireless frame further comprises any one or more of the following:
    指示本无线帧包含的资源分配指示信息为上行或下行调度的信息; Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
    指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  13. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。The resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  14. 如权利要求4所述的方法,其中:The method of claim 4 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同、或者完全相同、或者完全不同。The resource allocation indication information is carried in the physical layer signaling domain of the radio frame, and the identifier information of the receiving STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information. , or exactly the same, or completely different.
  15. 如权利要求14所述的方法,其中,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同包括以下情况中的任一种:The method according to claim 14, wherein the identification information of the receiving STA of the data portion carried by the radio frame is not exactly the same as the identification information of the STA included in the resource allocation indication information, including any of the following cases :
    所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
    所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes identifier information of other STAs other than the receiver STA, in addition to the identifier information of the receiver STA that includes the data part carried by the radio frame.
  16. 如权利要求1所述的方法,其中:The method of claim 1 wherein:
    所述无线帧还包含STA的组标识指示信息。The radio frame further includes group identification indication information of the STA.
  17. 如权利要求16所述的方法,其中:The method of claim 16 wherein:
    所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The radio frame further includes correspondence information of an arrangement order of resource allocation indication information of the STA and a position order of the STA in the group.
  18. 一种资源调度的指示方法,包括:A method for indicating resource scheduling includes:
    站点STA接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息包含: 该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;第n个STA使用的资源块的数量指示信息占用的比特数量为:
    Figure PCTCN2016081444-appb-100003
    Figure PCTCN2016081444-appb-100004
    表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
    The station STA receives the radio frame that includes the resource allocation indication information, and the resource allocation indication information includes the resource allocation indication information of the N STAs; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the The location indication information of the resource block used by the STA; N≥1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
    Figure PCTCN2016081444-appb-100003
    Figure PCTCN2016081444-appb-100004
    The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
    所述STA根据所述资源分配指示信息确定分配给本STA的资源块。The STA determines a resource block allocated to the STA according to the resource allocation indication information.
  19. 如权利要求18所述的方法,其中:The method of claim 18 wherein:
    对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。For the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
  20. 如权利要求18所述的方法,其中:The method of claim 18 wherein:
    所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。In the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  21. 如权利要求18所述的方法,其中:The method of claim 18 wherein:
    当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。When the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is the default. Instructions.
  22. 如权利要求18所述的方法,其中,所述无线帧还包含以下任一种或任几种信息:The method of claim 18, wherein the radio frame further comprises any one or any of the following:
    指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
    指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  23. 如权利要求18所述的方法,其中:The method of claim 18 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述 无线帧的介质访问控制协议数据单元内。The resource allocation indication information is carried in a physical layer signaling domain of the radio frame, or The radio frame is within the medium access control protocol data unit.
  24. 如权利要求18所述的方法,其中:The method of claim 18 wherein:
    所述无线帧中还包括本无线帧所调度的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;所述N个STA使用的资源块的位置指示信息及所述N个STA使用的资源块的数量指示信息均连续指示,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息;The radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, indication information of a resource indication order of each STA, location indication information of the resource block used by the N STAs, and the N The number indication information of the resource blocks used by the STAs are consecutively indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and with the N STAs. The number of resource blocks used indicates that there is no other information between the information;
    所述STA根据所述资源分配指示信息确定所分配的资源块包括:Determining, by the STA, the allocated resource block according to the resource allocation indication information includes:
    所述STA根据所述每个STA的资源指示顺序的指示信息获知本STA的排序;根据本无线帧调度的资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据本STA使用的资源块的数量指示信息获取分配给本STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在本STA之前的STA使用的资源块的位置指示信息,得到本STA使用的资源块的位置指示信息,根据所述本STA使用的资源块的位置指示信息获知分配给本STA的资源块的位置。The STA learns the order of the STA according to the indication information of the resource indication order of each STA; the total number of resource blocks is confirmed according to the indication information of the total number of resource blocks scheduled by the radio frame, according to the total number of resource blocks and the scheduling The number of STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STA is obtained according to the number of resource blocks used by the STA; The sum of the number of bits finds the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STAs before the STA is removed, and the location indication information of the resource block used by the STA is obtained. And obtaining, according to the location indication information of the resource block used by the STA, the location of the resource block allocated to the STA.
  25. 如权利要求24所述的方法,其中:The method of claim 24 wherein:
    所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;The indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
    或者,or,
    所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  26. 如权利要求18或24所述的方法,其中:The method of claim 18 or 24 wherein:
    所述无线帧中还包括所调度的STA的数量信息。 The radio frame further includes quantity information of the scheduled STAs.
  27. 如权利要求24所述的方法,其中:The method of claim 24 wherein:
    所述资源块的总数量的指示信息包括:所调度的资源的大小信息和资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总数量;The indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to: The size information of the scheduled resources calculates the total number of resource blocks;
    或者,or,
    所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
  28. 如权利要求27所述的方法,其中:The method of claim 27 wherein:
    所述资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。The indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
  29. 一种资源调度的指示装置,设置于发送方设备中,包括:A resource scheduling indication device is disposed in the sender device, and includes:
    生成模块,设置成生成资源分配指示信息;Generating a module, configured to generate resource allocation indication information;
    发送模块,设置成发送包含所述资源分配指示信息的无线帧给接收方;a sending module, configured to send a radio frame including the resource allocation indication information to a receiver;
    所述资源分配指示信息包括N个站点STA的资源分配指示信息;每个STA的资源分配指示信息包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;The resource allocation indication information includes resource allocation indication information of the N stations; the resource allocation indication information of each STA includes: the quantity indication information of the resource block used by the STA, and the location indication information of the resource block used by the STA; ≥1;
    第n个STA使用的资源块的数量指示信息占用的比特数量为:
    Figure PCTCN2016081444-appb-100005
    Figure PCTCN2016081444-appb-100006
    表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;
    The number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
    Figure PCTCN2016081444-appb-100005
    Figure PCTCN2016081444-appb-100006
    The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after removing the resource blocks allocated to the first n-1 STAs; 1≤n≤N;
    第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致。The number of bits occupied by the location indication information of the resource block used by the nth STA is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is the opposite The number from 1 to R n that is re-performed by the R n resource blocks that have not been allocated is the same as the original number after the resource block is renumbered.
  30. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N 个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。For the Nth STA, if the number of remaining resource blocks is an x power of 2, then the Nth The number of resource blocks used by the STAs indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
  31. 如权利要求29所述的装置,其中,所述生成模块生成资源分配指示信息包括:The device of claim 29, wherein the generating module generates resource allocation indication information comprises:
    所述生成模块依次对所述N个STA生成资源分配指示信息;每次在未生成资源分配指示信息的STA中,优先对第一STA生成资源分配指示信息,所述第一STA满足:为该STA所分配的资源块的最大编号Rm-max是为其他尚未生成资源分配指示信息的STA所分配的资源块的最大编号中的最小值。The generating module generates resource allocation indication information for the N STAs in sequence; each time in the STA that does not generate the resource allocation indication information, the resource allocation indication information is preferentially generated for the first STA, where the first STA satisfies: The maximum number R m-max of the resource blocks allocated by the STA is the minimum value among the largest numbers of resource blocks allocated to other STAs that have not yet generated the resource allocation indication information.
  32. 如权利要求31所述的装置,其中:The apparatus of claim 31 wherein:
    所述无线帧还包含所述N个STA的标识信息,且所述N个STA的标识信息按照生成STA的资源分配指示信息的顺序在所述无线帧中排列。The radio frame further includes the identifier information of the N STAs, and the identifier information of the N STAs is arranged in the radio frame in the order of generating the resource allocation indication information of the STA.
  33. 如权利要求32所述的装置,其中:The apparatus of claim 32 wherein:
    在所述无线帧中,所述N个STA使用的资源块的数量指示信息和/或位置指示信息在无线帧中连续指示,指示的顺序与STA的标识信息指示顺序相同。In the radio frame, the quantity indication information and/or the location indication information of the resource blocks used by the N STAs are consecutively indicated in the radio frame, and the order of indication is the same as the indication order of the STAs.
  34. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    在所述无线帧中,所述N个STA使用的资源块的位置指示信息排列在其他所有指示信息的后面。In the radio frame, the location indication information of the resource blocks used by the N STAs is arranged after all other indication information.
  35. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    在所述无线帧中,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息。In the radio frame, the location indication information of the resource block used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and the number of resource blocks used by the N STAs is indicated. There is no other information between the messages.
  36. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    当第N个调度的STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。 When the Nth scheduled STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is The default indication.
  37. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    所述无线帧还包含本无线帧调度的资源的大小信息。The radio frame further includes size information of resources scheduled by the radio frame.
  38. 如权利要求29或37所述的装置,其中:The device of claim 29 or 37, wherein:
    所述无线帧还包含资源块粒度信息、和/或本无线帧调度的STA的数量信息。The radio frame further includes resource block granularity information, and/or information about the number of STAs scheduled by the radio frame.
  39. 如权利要求37所述的装置,其中:The apparatus of claim 37 wherein:
    所述无线帧还包含指示是否所有资源块都被调度的指示信息。The radio frame also includes indication information indicating whether all resource blocks are scheduled.
  40. 如权利要求29所述的装置,其中,所述无线帧还包含以下任一种或任几种信息:The apparatus of claim 29, wherein the radio frame further comprises any one or any of the following:
    指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
    指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  41. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。The resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  42. 如权利要求32所述的装置,其中:The apparatus of claim 32 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同、或者完全相同、或者完全不同。The resource allocation indication information is carried in the physical layer signaling domain of the radio frame, and the identifier information of the receiving STA of the data part carried by the radio frame is not completely the same as the identifier information of the STA included in the resource allocation indication information. , or exactly the same, or completely different.
  43. 如权利要求42所述的装置,其中,所述无线帧承载的数据部分的接收方STA的标识信息与所述资源分配指示信息包含的STA的标识信息不完全相同包括以下情况中的任一种:The apparatus according to claim 42, wherein the identification information of the receiving STA of the data part carried by the radio frame is not exactly the same as the identification information of the STA included in the resource allocation indication information, including any of the following cases :
    所述无线帧承载的数据部分的所有接收方STA的标识信息中,包含所述资源分配指示信息包含的STA的标识信息以外的STA的标识信息;The identifier information of all the receiving STAs of the data part carried by the radio frame includes the identifier information of the STA other than the identifier information of the STA included in the resource allocation indication information;
    所述资源分配指示信息包含的STA的标识信息中,除了包含所述无线帧 承载的数据部分的接收方STA的标识信息,还包含所述接收方STA以外的其它STA的标识信息。The identifier information of the STA included in the resource allocation indication information includes, in addition to the radio frame The identifier information of the receiver STA of the data part of the bearer further includes identifier information of other STAs other than the receiver STA.
  44. 如权利要求29所述的装置,其中:The device of claim 29 wherein:
    所述无线帧还包含STA的组标识指示信息。The radio frame further includes group identification indication information of the STA.
  45. 如权利要求44所述的装置,其中:The apparatus of claim 44 wherein:
    所述无线帧还包括STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The radio frame further includes correspondence information of an arrangement order of resource allocation indication information of the STA and a position order of the STA in the group.
  46. 一种资源调度的指示装置,设置于站点STA中,包括:A resource scheduling indication device is disposed in the STA of the station, and includes:
    接收模块,设置成接收包含资源分配指示信息的无线帧;所述资源分配指示信息包括N个STA的资源分配指示信息;每个STA的资源分配指示信息至少包含:该STA使用的资源块的数量指示信息和该STA使用的资源块的位置指示信息;N≥1;第n个STA使用的资源块的数量指示信息占用的比特数量为:
    Figure PCTCN2016081444-appb-100007
    Figure PCTCN2016081444-appb-100008
    表示上取整运算,Rn表示去除分配给前n-1个STA的资源块后尚未分配的资源块数量;1≤n≤N;第n个STA使用的资源块的位置指示信息占用的比特数量等于分配给所述第n个STA的资源块的编号中的最大编号,采用位图模式指示;所述资源块的编号为对所述尚未分配的Rn个资源块重新进行的、从1到Rn的编号,资源块重新编号后,编号的大小关系同原有编号一致;
    a receiving module, configured to receive a radio frame that includes resource allocation indication information, where the resource allocation indication information includes resource allocation indication information of the N STAs, and the resource allocation indication information of each STA includes at least: the number of resource blocks used by the STA The indication information and the location indication information of the resource block used by the STA; N≥1; the number of resource blocks used by the nth STA indicates that the number of bits occupied by the information is:
    Figure PCTCN2016081444-appb-100007
    Figure PCTCN2016081444-appb-100008
    The upper rounding operation is performed, and R n represents the number of resource blocks that have not been allocated after the resource blocks allocated to the first n-1 STAs are removed; 1≤n≤N; the position of the resource block used by the nth STA indicates the bits occupied by the information. The number is equal to the largest number in the number of resource blocks allocated to the nth STA, and is indicated by a bitmap mode; the number of the resource block is re-executed from the undistributed R n resource blocks After the number of R n is renumbered, the size relationship of the number is the same as the original number;
    处理模块,设置成根据所述资源分配指示信息确定分配给所在STA的资源块。And a processing module, configured to determine, according to the resource allocation indication information, a resource block allocated to the STA where the STA is located.
  47. 如权利要求46所述的装置,其中:The apparatus of claim 46 wherein:
    对于第N个STA,如果剩余的资源块数量为2的x幂次方,则所述第N个STA使用的资源块的数量指示信息占用的比特数量为x+1,x为正整数。For the Nth STA, if the number of remaining resource blocks is an x power of 2, the number of resource blocks used by the Nth STA indicates that the number of bits occupied by the information is x+1, and x is a positive integer.
  48. 如权利要求46所述的装置,其中:The apparatus of claim 46 wherein:
    所述资源分配指示信息中,每个STA的资源分配指示信息按照分配到的资源块的最大编号升序排列。 In the resource allocation indication information, the resource allocation indication information of each STA is arranged in ascending order according to the maximum number of the allocated resource blocks.
  49. 如权利要求46所述的装置,其中:The apparatus of claim 46 wherein:
    当第N个STA占用尚未使用的所有资源块时,所述资源分配指示信息中不包含所述第N个STA的资源分配指示信息,或所述第N个STA的资源分配指示信息为缺省的指示信息。When the Nth STA occupies all the resource blocks that have not been used, the resource allocation indication information does not include the resource allocation indication information of the Nth STA, or the resource allocation indication information of the Nth STA is the default. Instructions.
  50. 如权利要求46所述的装置,其中,所述无线帧还包含以下任一种或任几种信息:The apparatus of claim 46, wherein the wireless frame further comprises any one or any of the following:
    指示本无线帧包含的资源分配指示信息为上行或下行调度的信息;Indicates that the resource allocation indication information included in the current radio frame is uplink or downlink scheduling information;
    指示本无线帧包含的资源分配指示信息是非连续或者连续资源块调度的信息。Indicates that the resource allocation indication information included in the current radio frame is information of discontinuous or continuous resource block scheduling.
  51. 如权利要求46所述的装置,其中:The apparatus of claim 46 wherein:
    所述资源分配指示信息承载于所述无线帧的物理层信令域内,或者所述无线帧的介质访问控制协议数据单元内。The resource allocation indication information is carried in a physical layer signaling domain of the radio frame or in a medium access control protocol data unit of the radio frame.
  52. 如权利要求46所述的装置,其中:The apparatus of claim 46 wherein:
    所述无线帧中还包括本无线帧所调度的资源块的总数量的指示信息、每个STA的资源指示顺序的指示信息;所述N个STA使用的资源块的位置指示信息及N个STA使用的资源块的数量指示信息均连续指示,所述N个STA使用的资源块的位置指示信息位于所述N个STA使用的资源块的数量指示信息之后,且与所述N个STA使用的资源块的数量指示信息之间无其它信息;The radio frame further includes indication information of a total number of resource blocks scheduled by the current radio frame, indication information of a resource indication order of each STA, location indication information of the resource block used by the N STAs, and N STAs. The quantity indication information of the used resource blocks is continuously indicated, and the location indication information of the resource blocks used by the N STAs is located after the quantity indication information of the resource blocks used by the N STAs, and is used by the N STAs. The number of resource blocks indicates that there is no other information between the information;
    所述处理模块根据所述资源分配指示信息确定分配给所在STA的资源块包括:Determining, by the processing module, the resource blocks allocated to the STAs that are located according to the resource allocation indication information includes:
    所述处理模块根据所述每个STA的资源指示顺序的指示信息获知所在STA的排序;根据本无线帧调度的资源块的总数量的指示信息确认资源块的总数,根据资源块的总数及所调度的STA的数量计算出每个STA使用的资源块的数量指示信息的比特数的总和,并根据所在STA使用的资源块的数量指示信息获取分配给所在STA的资源块的个数;根据所述比特数的总和找到所述N个STA使用的资源块的位置指示信息的开始位置,剔除排序在所在STA之前的STA使用的资源块的位置指示信息,得到所在STA使用的资源块的位 置指示信息,根据所在STA使用的资源块的位置指示信息获知分配给所在STA的资源块的位置。The processing module learns the order of the STAs according to the indication information of the resource indication order of each STA; and confirms the total number of resource blocks according to the indication information of the total number of resource blocks scheduled by the current radio frame, according to the total number of resource blocks and The number of the scheduled STAs is calculated as the sum of the number of bits of the number of resource blocks used by each STA, and the number of resource blocks allocated to the STAs is obtained according to the number of resource blocks used by the STAs; The sum of the number of bits is found to find the start position of the location indication information of the resource block used by the N STAs, and the location indication information of the resource block used by the STA before the STA is removed, and the bit of the resource block used by the STA is obtained. The indication information is used to learn the location of the resource block allocated to the STA according to the location indication information of the resource block used by the STA.
  53. 如权利要求52所述的装置,其中:The apparatus of claim 52 wherein:
    所述STA的资源指示顺序的指示信息为STA的标识信息,且STA的标识信息的排列顺序和STA的资源分配指示信息的排列顺序相同;The indication information of the resource indication order of the STA is the identifier information of the STA, and the order of the identifier information of the STA is the same as the order of the resource allocation indication information of the STA.
    或者,or,
    所述STA的资源指示顺序的指示信息为STA的组标识指示信息,以及STA的资源分配指示信息的排列顺序与STA在组内的位置顺序的对应信息。The indication information of the resource indication order of the STA is the group identification indication information of the STA, and the information about the arrangement order of the resource allocation indication information of the STA and the location order of the STA in the group.
  54. 如权利要求46或52所述的装置,其中:The device of claim 46 or 52 wherein:
    所述无线帧中还包括所调度的STA的数量信息。The radio frame further includes quantity information of the scheduled STAs.
  55. 如权利要求49所述的装置,其中:The apparatus of claim 49 wherein:
    所述资源块的总数量的指示信息包括:所调度的资源的大小信息和资源调度粒度;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据所述资源调度粒度和所调度的资源的大小信息计算出资源块的总数量;The indication information of the total number of the resource blocks includes: size information of the scheduled resources and a resource scheduling granularity; and determining, according to the indication information of the total number of resource blocks, the total number of resource blocks, according to: The size information of the scheduled resources calculates the total number of resource blocks;
    或者,or,
    所述资源块的总数量的指示信息包括:所调度的资源的大小信息;所述根据资源块的总数量的指示信息确认资源块的总数包括:根据预设的资源调度粒度和所调度的资源的大小信息计算出资源块的总数量。The indication information of the total number of resource blocks includes: size information of the scheduled resources; and the total number of resource blocks confirmed according to the indication information of the total number of resource blocks includes: according to preset resource scheduling granularity and scheduled resources The size information calculates the total number of resource blocks.
  56. 如权利要求55所述的装置,其中:The apparatus of claim 55 wherein:
    所述资源块的总数量的指示信息还包含指示是否所有资源块都被调度的指示信息。 The indication information of the total number of resource blocks further includes indication information indicating whether all resource blocks are scheduled.
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