WO2019062560A1 - Method for indicating uplink sub-band precoding matrix, terminal, and base station - Google Patents

Method for indicating uplink sub-band precoding matrix, terminal, and base station Download PDF

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Publication number
WO2019062560A1
WO2019062560A1 PCT/CN2018/105638 CN2018105638W WO2019062560A1 WO 2019062560 A1 WO2019062560 A1 WO 2019062560A1 CN 2018105638 W CN2018105638 W CN 2018105638W WO 2019062560 A1 WO2019062560 A1 WO 2019062560A1
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Prior art keywords
subband
subbands
precoding matrix
sub
bits
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PCT/CN2018/105638
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French (fr)
Chinese (zh)
Inventor
孙彦良
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华为技术有限公司
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Publication of WO2019062560A1 publication Critical patent/WO2019062560A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to an indication method, a terminal, and a base station of an uplink subband precoding matrix.
  • the current uplink multi-antenna transmission is determined to be supported.
  • the mechanism of uplink multi-antenna transmission is similar to that of downlink.
  • the terminal first transmits a sounding reference signal (SRS).
  • SRS sounding reference signal
  • the base station receives the SRS and learns the channel state of the uplink through channel estimation, and then sends downlink control information (DCI).
  • DCI downlink control information
  • Schedule uplink transmission Based on the conclusions of the current NR discussion, up to 4 uplink SRS ports can be supported.
  • the base station may indicate the precoding matrix of the uplink multi-antenna transmission through a predefined codebook.
  • the codebook includes N candidate precoding codewords.
  • the base station Based on the SRS sent by the terminal, the base station selects one of the N codewords and determines the precoding matrix to be used on the SRS ports. And transmitting a transmitted precoding matrix index (TPMI) to indicate a precoding matrix that needs to be adopted on these SRS ports.
  • TPMI transmitted precoding matrix index
  • the terminal learns the precoding matrix required for the uplink transmission by reading the indication bit of the TPMI.
  • Frequency-selective precoding refers to a physical resource that is scheduled by the DCI and used for uplink transmission.
  • the frequency domain is divided into multiple sub-bands. On different sub-bands, the precoding matrix required for uplink transmission is used. different. Therefore, in the case of frequency selective precoding, the DCI needs to include an indication of the TPMI of each subband.
  • the subband width is different for different frequency domain scheduling widths. For example, if the number of subbands configured by the system through RRC signaling is 3, and the base station schedules 90 PRBs, the subband width of the UE is 30. Assuming that the base station schedules 45 PRBs, the subband width of the UE is 15; if the base station schedules 3 PRBs, the subband width of the UE is 1 PRB.
  • the base station indicates to the terminal that the sub-band TPMI for uplink transmission also changes, and the pre-coding matrix used for uplink transmission on the sub-band also changes, which is disadvantageous for the uplink transmission. Band-level signal interference management also reduces the performance of upstream transmissions.
  • the existing method of determining the sub-band width based on the scheduling width results in unstable transmission performance of the uplink transmission on the sub-band.
  • the present invention provides an indication method, a terminal, and a base station of an uplink sub-band precoding matrix, and improves an indication manner of an uplink sub-band to perform precoding matrix indication by using downlink control information, so as to improve uplink data transmission performance.
  • the sub-band width is only related to the system bandwidth. Compared with the prior art, since the width of the sub-band does not change with the frequency domain width of the uplink resource scheduling, the sub-band can be unified. Band-level signal interference management to maintain the stability of uplink transmission.
  • the bits of the precoding matrix of the original subband in the downlink control information are used to indicate the precoding matrix subset of the subband group. Since the width of the subband is relatively fixed, the uplink resource scheduling width can be dynamically adjusted. The number of subbands in the subband group is kept unchanged, so that the bit length of the downlink control information DCI is fixed, so that the downlink control information is normally acquired by the terminal, and the uplink data transmission is maintained normally.
  • the first aspect of the present disclosure provides a method for indicating an uplink sub-band precoding matrix, which is applied to a terminal side, where the method includes: receiving, by a terminal, downlink control information sent by a base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one or more sub And the number of the sub-bands in the sub-band group is dynamically adjusted according to the number of sub-bands occupied by the uplink resource scheduling.
  • the terminal acquires the pre-coding matrix corresponding to the sequence of the pre-coding matrix according to the downlink control information. And determining, by the terminal, the precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling according to the precoding matrix subset.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the width of the subband and the number of bits of the first bit interval are configured in the terminal, or are configured by radio resource control (RRC) of the base station.
  • RRC radio resource control
  • one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
  • At least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
  • the 2N bits include at least one redundant bit.
  • the redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the terminal determines, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling, where: the terminal determines each Determining a subband group, and subbands in each subband group; said terminal selecting said precoding matrix from said subset of precoding matrices from said subband group corresponding to said subband In the precoding matrix subset, a precoding matrix for performing uplink data transmission on the subband is selected.
  • the precoding matrix subset and the manner of selecting the precoding matrix from the precoding matrix subset are configured in the terminal, or are configured to the terminal by using an RRC command of the base station. .
  • the present disclosure provides a method for indicating an uplink sub-band precoding matrix, which is applied to a base station side, and includes: determining, by a base station, downlink control information that is sent to a terminal, where the downlink control is performed.
  • the information includes a first bit interval, where the bit number of the first bit interval is fixed, and the bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one Or a plurality of sub-bands, and the number of the sub-bands in the sub-band group is dynamically adjusted according to the number of sub-bands occupied by the uplink resource scheduling; the base station sends the downlink control information to the terminal, where the downlink control information is used to indicate the terminal Obtaining, according to the downlink control information, a precoding matrix subset corresponding to the precoding matrix sequence, and determining, according to the precoding matrix subset, uplink data transmission on the subband occupied by the uplink resource scheduling Precoding matrix.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the method further includes: the base station sending a radio resource management RRC command to the terminal, where the RRC command is used to indicate a width of the subband and a bit of the first bit interval. number.
  • one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
  • At least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
  • the 2N bits include at least one redundant bit.
  • the redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the method further includes: the base station sending an RRC command to the terminal, where the RRC command is used to indicate the precoding matrix subset of each of the subband groups and from the The way in which the precoding matrix is selected in the subset of precoding matrices.
  • the present application provides a terminal, including: a processor and a transceiver;
  • the transceiver is configured to: receive downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used for an indicator a transmission precoding matrix sequence number of the group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by uplink resource scheduling;
  • the device is configured to: obtain, according to the downlink control information received by the transceiver, a precoding matrix subset corresponding to the sending precoding matrix sequence; and determine, according to the precoding matrix subset, that the uplink resource scheduling is occupied A precoding matrix for uplink data transmission on the subband.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the number of bits in the first bit interval is 2N, and N is a positive integer;
  • the number of bits in the first bit interval is 2N, and N is a positive integer;
  • the coding matrix sequence occupies two consecutive bits of the first bit interval.
  • the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmit precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the structure of the terminal includes a processor and a transceiver configured to support the terminal to perform corresponding functions in the above methods.
  • the transceiver is configured to support communication between the terminal and the base station, and send information or instructions involved in the foregoing method to the base station.
  • the terminal may also include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.
  • the present application provides a base station, including: a processor and a transceiver;
  • the processor is configured to: determine downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
  • the transceiver is configured to: send the downlink control information to the terminal, where the downlink control information is used to instruct the terminal to acquire, according to the downlink control information, a precoding matrix subset corresponding to the precoding matrix sequence number, and according to the The precoding matrix subset determines a precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the number of bits in the first bit interval is 2N, and N is a positive integer;
  • the number of bits in the first bit interval is 2N, and N is a positive integer;
  • the coding matrix sequence occupies two consecutive bits of the first bit interval.
  • the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmit precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the processor is configured to support a base station to perform the corresponding functions of the base station in the above method.
  • the transceiver is configured to support communication between the base station and the terminal, and send information or instructions involved in the foregoing method to the terminal.
  • a memory may also be included in the base station for coupling with the processor, which stores the necessary program instructions and data for the base station.
  • the present application provides a circuit system including a chip or a system on a chip that provides a processor function, the chip or the system on chip being configured in a terminal such that the The terminal implements any of the above first aspects or any possible implementation of the first aspect; or the chip or the system on chip is configured in a base station such that the base station implements any of the above aspects or the first aspect Method to realize.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by the present application.
  • FIG. 2 is a flowchart of a method for indicating an uplink subband precoding matrix provided by the present application
  • FIG. 3 is a schematic diagram of a method for determining a number of subbands occupied by uplink resource scheduling in a discontinuous resource scheduling according to the present application
  • FIG. 5 is a second example of the configuration of the number of subbands of a subband group provided by the present application.
  • FIG. 7 is a fourth example of the configuration of the number of subbands of a subband group provided by the present application.
  • FIG. 9 is a sixth example of the configuration of the number of subbands of a subband group provided by the present application.
  • 10 is an example 7 of a configuration of a number of subbands of a subband group provided by the present application.
  • 11 is an eighth example of the configuration of the number of subbands of a subband group provided by the present application.
  • Figure 12 is a ninth example of the configuration of the number of subbands of a subband group provided by the present application.
  • 13 is an example 10 of a configuration of a number of subbands of a subband group provided by the present application.
  • 15 is an example 12 of an example of a configuration of a number of subbands of a subband group provided by the present application;
  • 16 is an example 13 of the configuration of the number of subbands of a subband group provided by the present application.
  • 17 is a fourteenth example of a configuration of the number of subbands of a subband group provided by the present application.
  • Figure 18 is a schematic structural view of a device provided by the present application.
  • Figure 19 is a schematic structural view of another device provided by the present application.
  • FIG. 21 is a schematic structural diagram of another circuit system provided by the present application.
  • LTE systems such as LTE/LTE-A/eLTE systems
  • LTE/LTE-A/eLTE systems or other wireless communication systems using various wireless access technologies, for example, using multiple code divisions.
  • SC-FDMA single carrier-frequency division multiple access
  • 5G also known as new radio
  • NR new radio
  • Figure 1 shows a schematic diagram of a communication system.
  • the communication system may include at least one base station 100 (only one shown) and one or more terminals 200 connected to the base station 100.
  • Base station 100 can be a device that can communicate with terminal 200.
  • the base station 100 can be any device having a wireless transceiving function. Including but not limited to: a base station NodeB, an evolved base station eNodeB, a base station in a fifth generation (5G) communication system, a base station or base station in a future communication system, an access node in a WiFi system, and a wireless relay node , wireless backhaul nodes, etc.
  • the base station 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario.
  • the base station 100 may also be a base station in a 5G network or a base station in a future evolved network; it may also be a wearable device or an in-vehicle device or the like.
  • the base station 100 can also be a small station, a transmission reference point (TRP), or the like. Of course, no application is not limited to this.
  • TRP transmission reference point
  • the terminal 200 is a device with wireless transceiving function that can be deployed on land, including indoor or outdoor, handheld, wearable or on-board; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (for example, an airplane or a balloon). And satellites, etc.).
  • the terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control.
  • the embodiment of the present application does not limit the application scenario.
  • a terminal may also be referred to as a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, and a UE. Agent or UE device, etc.
  • UE user equipment
  • system and “network” in the embodiments of the present invention may be used interchangeably.
  • Multiple means two or more, and in view of this, "a plurality” may also be understood as “at least two” in the embodiment of the present invention.
  • and/or describes the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately.
  • the character "/" unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
  • the sub-band width is independent of the number of physical resources scheduled by the system, and the sub-band width is related to the system bandwidth.
  • the sub-band width is used.
  • the number of bits of the indication bit is fixed, for example, the number of bits of the indication bit does not exceed 10 bits, so as to ensure that the length of the DCI is not affected; in order to ensure that the number of indication bits is fixed, the indication bit indicates not the TPMI of one subband, but the TPMI of a subband group, including in a subband group One or more sub-bands, so that when resource scheduling is performed, it is ensured that the sub-band bandwidth does not change with the frequency domain width of the scheduling, but the number of sub-bands in the sub-band group follows the frequency domain width of the scheduling. Change, the number of subbands of the subband group does not affect the indication bits in the DCI.
  • the present application provides an indication method of an uplink sub-band precoding matrix, which can be applied to an uplink frequency selective precoding technology, where the number of bits of the downlink control signaling is limited,
  • the indication manner is that the TPMI of each sub-band group is indicated to the terminal by using the downlink control signaling, and after acquiring the TPMI of the sub-band group, the terminal determines the sub-band in the sub-band group according to the pre-coding matrix subset configured for the TPMI of the sub-band group. Precoding matrix.
  • the application provides an indication method of an uplink subband precoding matrix, which includes the following steps:
  • Step 201 The base station determines downlink control information, where the downlink control information includes a first bit interval, where the bit number of the first bit interval is fixed, and the bit of the first bit interval is used to indicate a transmission pre-sort of the sub-band group.
  • An encoding matrix sequence number wherein the subband group includes one or more subbands, and the number of subbands included in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
  • Step 202 The base station sends downlink control information to the terminal.
  • Step 203 The terminal receives the downlink control information sent by the base station, and obtains a precoding matrix subset corresponding to the sending precoding matrix sequence according to the received downlink control information; and determines, according to the precoding matrix subset, the uplink resource.
  • the base station needs to configure the uplink precoding of the terminal to be frequency selective uplink precoding by sending an RRC message.
  • the width of the subband refers to the number of consecutive RBs in the frequency domain.
  • the resource scheduling can also be scheduled with a granularity of a physical resource block (PRB). Therefore, the width of the subband may be a granularity of the RB, or may be a granularity of the PRB.
  • the width of the subband is the number of consecutive PRBs occupied by each subband in the frequency domain, wherein the width of the subband has no relationship with the number of PRBs actually scheduled by the uplink resource scheduling.
  • the physical resource block (PRB) in the present application is a unit of time-frequency resources, occupying 1 subframe or 1 slot in the time domain, and occupying a sub-time in the LTE domain. There are 14 consecutive OFDM symbols in the frame, occupying 12 consecutive subcarriers in the frequency domain.
  • the width of the sub-band is determined according to the system bandwidth in which the terminal is configured.
  • one system bandwidth corresponds to one subband width, or one system bandwidth corresponds to multiple subband widths, and which subband width is specifically configured by the base station.
  • the system bandwidth is relatively fixed, taking the PRB as the granularity, the physical uplink data channel and the precoding matrix of the demodulation reference signal are the same and remain unchanged in the one or more frequency domain continuous PRBs occupied by one subband. .
  • the base station indicates the subband width to the terminal by using RRC signaling.
  • the subband width is explicitly indicated by adding a system parameter of “subband width” in the RRC signaling; or based on a certain system bandwidth or other system parameter to subband width mapping table,
  • the subband width is implicitly indicated by indicating a system bandwidth or other system parameters.
  • the subband bandwidth can also be defined in the standard to configure the subband bandwidth in the terminal.
  • the downlink control information in this application refers to the DCI used for uplink scheduling, and the number of bits occupied by the first bit interval in the DCI is fixed.
  • the base station may indicate, by using the RRC information, the number of bits occupied by the first bit interval to the terminal. For example, assuming that the number of bits is 2N and N is a positive integer, the base station can configure the value of N through the RRC information, so that the terminal determines the number of bits of the indication bit indicating the TPMI of the subband group.
  • the number of bits occupied by the first bit interval may also be defined in a standard to configure the number of bits occupied by the first bit interval in the terminal.
  • the method further includes: configuring, by the uplink resource scheduling, the scheduled resource to the terminal, so that the terminal determines the number of subbands occupied by the uplink resource scheduling. .
  • the base station transmits physical control information in a certain slot, and the scheduling terminal performs uplink multi-antenna transmission.
  • the UE receives the scheduling signaling of the base station, and determines the starting position and the number of PRBs of the scheduled PRB of the base station.
  • the frequency domain width of the uplink resource scheduling for the uplink multi-antenna transmission by the base station is configured by the base station, and the step further includes: determining, by the terminal, the number of sub-bands occupied by the uplink resource scheduling.
  • the number of subbands occupied by the uplink resource scheduling is the number of subbands occupied by all the scheduled PRBs.
  • the number of subbands occupied by the uplink resource scheduling is the number of subbands occupied by the scheduled physical resource block.
  • the scheduled physical resource block is non-contiguous 11 PRBs, and the number of subbands occupied by the uplink resource scheduling is scheduled.
  • the number of subbands occupied by these 11 PRBs there are two options for calculating the number of subbands occupied by these 11 PRBs:
  • Manner 1 As shown in (1) of FIG. 3, the number of subbands occupied by the subband and the 11 scheduled PRBs are determined according to the subband bandwidth and the 11 scheduled PRBs actually scheduled. The calculation principle is: every 4 PRBs are one subband, and the first PRB of each subband must be the scheduled PRB, and only the subband including the actually scheduled PRB will be counted as occupied by the uplink resource scheduling. The number of sub-bands.
  • the subband is determined according to the granularity of the subband bandwidth predetermined by the system.
  • the calculation principle is: every 4 PRBs are one subband, and the first PRB of each subband does not need to be a scheduled PRB, but only the subband including the actually scheduled PRB will be counted in the uplink resource scheduling office. The number of subbands occupied.
  • the downlink control information refers to the DCI used for uplink scheduling, and the number of bits occupied by the first bit interval in the DCI is fixed, and the TPMI for indicating a subband group in the first bit interval is used.
  • the indication bits can be unified into two bits or one bit.
  • the terminal may obtain the first bit interval according to the bit bitmap of the DCI, and the terminal may obtain the TPMI of the sub-band group indicated by the first bit interval by searching the mapping relationship table between the sub-band group and the indication bit.
  • the TPMI of each subband group indicates the specific configuration of a precoding matrix subset.
  • the terminal determines, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling, where: the terminal determines each of the subbands. a group, and a subband in each subband group; the terminal, according to a method of selecting a precoding matrix from the precoding matrix subset, from the precoding matrix of a subband group corresponding to any one of the subbands In the subset, a precoding matrix for uplink data transmission on the subband is selected.
  • the terminal determines each of the subband groups, and the subbands in each subband group, and the method mainly includes: determining, by the terminal, the number of subband groups, the number of subbands in the subband group, and the subband The assignment relationship between groups and subbands.
  • the subband group in the present application refers to the subband group occupied by the uplink resource scheduling
  • the subband in the subband group is the subband occupied by the uplink resource scheduling
  • the subband in the subband group is the uplink resource.
  • the subbands in the n subbands occupied by the scheduling are generally started from the first subband of the n subbands occupied by the uplink resource scheduling, and the subbands in each subband group are sequentially divided.
  • the number of subband groups and the number of subbands in the subband group are all adjustable, and both need to take into account the number of subbands occupied by the uplink resource scheduling and the number of bits occupied by the sequence of the precoding matrix.
  • the transmission precoding matrix sequence number occupies two consecutive bits of the first bit interval
  • the other is: the transmission precoding matrix sequence number occupies 1 bit of the first bit interval.
  • the number of subbands in the subband group can be determined in the following manner. These determination manners can be configured in the terminal and the base station by standard definition.
  • the following example shows that the foregoing resource scheduling is a continuous PRB scheduling in the frequency domain, and an example of determining the number of subbands in the subband group is illustrated.
  • the number of bits in the first bit interval in the DCI is 2N
  • the subband is The width is K
  • the number of subbands occupied by the uplink resource scheduling is n
  • the number of consecutive PRBs scheduled by the base station is X (ie, the number of consecutive PRBs scheduled by the uplink resource scheduling)
  • the number of subbands in the subband group is Y.
  • the number of subbands in the subband group is determined by:
  • the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
  • the base station indicates the TPMI of each subband group by every 2 bits of the first bit interval in the DCI, and the TPMI of each subband group corresponds to a certain precoding matrix, and the precoding matrix is performed on the subbands in the subband group.
  • the base station indicates the TPMI of each subband group by using every bit in the first bit interval in the DCI, and the TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset.
  • Send and receive uplink data For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission. .
  • the base station indicates the TPMI of each subband group by every 1 bit of the first bit interval in the DCI.
  • the TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception.
  • the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
  • the number of subbands in the subband group is determined by:
  • the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval.
  • the base station indicates the TPMI of each subband group by every 2 bits of the first bit interval in the DCI, and the TPMI of each subband group corresponds to a certain precoding matrix, and the precoding matrix is performed on the subbands in the subband group.
  • the base station indicates the TPMI of each subband group by every 2 bits in the scheduling signaling.
  • the TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception.
  • the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
  • the base station indicates the TPMI of each subband group by every 2 bits in the scheduling signaling.
  • the TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception.
  • the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
  • the application also provides a way to process redundant bits included in 2N bits:
  • the redundant bits are padded with 0 or other invalid values.
  • these redundant bits are reinterpreted to transmit other related information of the TpMI of the subband group, for example, these redundant bits are used to indicate adjacent subbands. Whether the precoding matrix on the top must be inconsistent. It may be indicated whether the precoding matrices of two adjacent subbands in one subband group must be inconsistent, or may indicate whether precoding matrices of adjacent two subbands in a frequency domain interval must be inconsistent.
  • the specific manner of processing the redundant bits included in the 2N bits may be standard definition, and the base station and the terminal are pre-configured based on the standard definition; or the base station may be configured to the terminal through RRC signaling.
  • 2N bits may not be fully used.
  • An example of a manner of processing redundant bits included in 2N bits provided by the present application is as follows:
  • each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 4 bits, and the redundancy bits are 2 bits. Therefore, when using redundant bits, for subband groups 1 and 2, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 3 and 4, adding 1 bit Indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
  • each subband group includes 1 subband.
  • Each bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 5 bits, and the redundancy bits are 1 bit. Therefore, when redundant bits are used, for subband groups 1 to 5, an increase of 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
  • each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 5 bits, and the redundancy bits are 3 bits.
  • adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 2 to 4, Adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 3 to 5, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range are necessary. Inconsistent.
  • each subband group includes 1 sub.
  • every 1 bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 6 bits, and the redundancy bits are 2 bits. Therefore, when using these two redundant bits, for subband groups 1 to 3, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 4 to 6, Adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
  • each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 7 bits, and the redundancy bits are 1 bit. Therefore, when using the 1 redundant bit, for subband groups 1 to 7, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
  • each subband group includes two subbands, two each.
  • the bit indicates the TPMI of one subband group, and therefore, the bit indicating the TPMI of the subband group is 4 bits, and the redundancy bit is 2 bits.
  • one redundant bit is used to indicate whether the precoding matrices of two adjacent subbands in the subband group must be inconsistent, that is, each subband group indicates the subband group by 3 bits.
  • TPMI related information where two bits indicate the TPMI (precoding matrix subset) of the subband group, and the other bit indicates whether the precoding matrices of two adjacent subbands in the subband group must be inconsistent.
  • each subband group includes 2 subbands, and each of the two subbands.
  • the bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 6 bits, and the redundancy bits are 2 bits. Therefore, when using redundant bits, for subband groups 1 and 2, one bit can be added to indicate whether the precoding matrices of two adjacent subbands within the subband range of the first two subband groups must be inconsistent, for the latter. With groups 3 and 4, adding 1 bit indicates whether the precoding matrices of two adjacent subbands within the subband range of the latter two subband groups must be inconsistent.
  • n ⁇ N there may be redundant bits, but in this case, since only one subband is included in each subband group, the TPMI of the subband group indicates a certain Precoding matrices, there is no need to use redundant bits to indicate whether the precoding matrices on adjacent subbands must be inconsistent, usually filled with zeros.
  • the resource scheduling only occupies 2 subbands, and the 2 bits corresponding to the last subband are redundant bits, and are filled with 00. .
  • the resource scheduling only occupies 1 subband, except that the bit region corresponding to the first subband is used to indicate the precoding matrix.
  • the remaining 6 bits of all the remaining three sub-bands are redundant bits, all of which are padded with 0.
  • the present invention is mainly directed to a scenario in which the number of subbands occupied by uplink resource scheduling is large.
  • a scenario corresponding to n ⁇ N may appear briefly in a few fewer uplink scheduling time units. If the scheduling of n ⁇ N occurs frequently, it should be configured as a wideband TPMI indication in the RRC configuration according to the base station scheduler logic.
  • the number of subbands in a subband group is determined by:
  • the number of sub-bands in each sub-band group is equal.
  • the number of subbands in the remaining subband groups is equal except that the number of subbands in a subband group is special.
  • the number of subbands in the subband group can be different, in order to avoid the presence of redundant bits in 2N bits.
  • the number of subbands in each of the subband groups is one, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval;
  • the mode determines that the number of sub-bands included in the N sub-band groups is any two or three of p, 2*p, and (p+1+(n-1) mod p).
  • the number of subbands included in each of the subband groups is determined by: after allocating p subbands for each of the N subband groups, n-pN remaining in the n subbands
  • the bands are allocated p sub-bands for each sub-band group in descending order of sub-band group numbers from small to large or large to small, until the n-pN sub-bands are allocated.
  • the size of each sub-band group can be increased from p sub-bands to 2*p sub-bands in a fixed order based on the number n of sub-bands occupied by the scheduling until n-pN sub-bands are used.
  • the number of subbands in the subband group is at most 2*p and the minimum is p.
  • the fixed order may be in the order of the sub-band group numbers from small to large, or may be in the order of the sub-band group numbers from large to small, and the invention is not limited.
  • Y i p is satisfied in the subband group, and its corresponding bit field (subband, indicator bit of the TPMI of the group) indicates a certain precoding matrix.
  • the bit field indicates a subset of a precoding matrix, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception.
  • the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
  • Y i is the number of subbands included in the i-th sub-band group
  • Yi is determined according to the judgment of n in the following relation:
  • each subband group includes p subbands.
  • the subband group number is less than The number of subbands in the subband group is 2*p
  • when the subband group number is equal to The number of subbands in the subband group is (p+1+(n-1) mod p)
  • when the subband group number is greater than The number of subbands in the subband group is p.
  • the number of the subband group is equal to The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than The number of subbands in the subband group is p.
  • each subband group includes 1 subband.
  • the TPMI sequence number indicated by the base station indicates a subset of a certain precoding matrix in the first subband group, and a plurality of subband groups in i>1 represent a certain precoding matrix.
  • the number of subbands in the subband group is 2*p
  • the subband group number is equal to The number of subbands in the subband group is (p+1+(n-1) mod p).
  • the sub-bands in the sub-band group can also be determined in a similar manner according to the order of the sub-band groups. Specifically, the above relationship can also be transformed into:
  • the number of subbands in the subband group is 2*p
  • the subband group number is equal to The number of subbands in the subband group is (p+1+(n-1) mod p)
  • the subband group number is less than The number of subbands in the subband group is p.
  • the number of subbands in the subband group is p
  • the number of subbands in the subband group is (p+1+(n-1) mod p).
  • the method further includes: selecting, by the terminal, the precoding matrix from the subset of precoding matrices, selecting, in the precoding matrix subset of the subband group corresponding to any one of the subbands, A precoding matrix for uplink data transmission on the subband.
  • the precoding matrix subset of the subband group includes a determination. Precoding matrix. If the number of subbands in each subband group is one or more when the number of subbands occupied by the uplink resource scheduling is n>N, the precoding matrix subset of the subband group includes at least two precodings. a matrix, randomly selecting one of the two precoding matrices as a precoding matrix for performing uplink data transmission on the corresponding subband, or selecting one of the two precoding matrices in a cyclic manner as the corresponding subband A precoding matrix for uplink data transmission. Alternatively, optionally, a precoding matrix is selected from the two precoding matrices according to information indicated by the redundant bits, such as whether the precoding matrix of the adjacent subbands must be inconsistent.
  • a precoding matrix subset of the TPMI indication of the subband group and a manner of selecting a precoding matrix from the precoding matrix subset are configured in the terminal, or configured by using an RRC instruction of the base station To the terminal.
  • a precoding matrix may be indicated for each subband occupied by the uplink resource scheduling. And has the following technical effects:
  • Maintaining the subband width is only related to the system bandwidth. Compared with the prior art, since the width of the subband does not change with the frequency domain width of the uplink resource scheduling, the signal interference management of the subband level can be uniformly performed, and the uplink transmission is maintained. stability.
  • the bits of the precoding matrix of the original indicator subband in the downlink control information are used to indicate the precoding matrix subset of the subband group. Since the width of the subband is relatively fixed, the subband can be dynamically adjusted according to the width of the uplink resource scheduling. The number of subbands in the group, and the number of bits of the indication bit are kept unchanged, so that the bit length of the downlink control information DCI is fixed, so that the downlink control information is normally acquired by the terminal, and the uplink data transmission is maintained normally.
  • the relevant configuration information of the precoding matrix subset of one subband group is indicated every 1 bit or every 2 bits.
  • the configuration information of the precoding matrix subset of a subband group includes at least a restriction set of two precoding codewords, and the restriction set of the precoding codeword is used to determine a precoding matrix, and the precoding matrix is combined with the codebook design below. A specific implementation of the related configuration of the subset will be described.
  • the indication of the base beam selection for the second transmission layer is changed from the broadband indication to the sub-band indication;
  • the NR uplink two-level codebook can be designed as:
  • the first level W1 indicates a set of oversampled DFT beams.
  • a broadband base beam selection can be determined. Based on the selection of the first level, on each subband, a 1-bit or 2-bit indication is further indicated to indicate the cross-polarization phase generated between the two 2-port port groups, as follows:
  • a restricted set of pre-coded codewords can also be defined by several implementation options as follows.
  • Implementation option 1 the restriction set option of the precoding codeword is determined, and the base station and the terminal are based on the fixed restriction set, and the terminal selects a precoding matrix from the precoding matrix subset indicated by the base station according to the selection indicated by the base station.
  • the method of determining a set of restrictions on a subband to determine a precoding matrix is a method of determining a set of restrictions on a subband to determine a precoding matrix.
  • the base station configures a set of pre-coding matrix restriction sets, and semi-statically notifies the UE.
  • the base station is configured through a Media Access Control Control Element (MAC CE), or may be through an RRC letter. Order instructions.
  • MAC CE Media Access Control Control Element
  • the base station selects one of the restriction sets to notify the terminal in the downlink control information, and the terminal randomly selects a precoding matrix to report in the restriction set.
  • the following two-level codebook may be designed as follows:
  • Option 1 The two c1,0 restriction sets are ⁇ 1,j ⁇ and ⁇ -1,-j ⁇ .
  • the base station indicates, by 1 bit, that the candidate set of the cross-polarization phase selectable by the UE is ⁇ 1, j ⁇ or ⁇ -1, -j ⁇ .
  • Option 2 The two c1,0 restriction sets described are ⁇ 1, -j ⁇ and ⁇ -1, j ⁇ .
  • the base station indicates, by 1 bit, that the candidate set of the cross-polarization phase selectable by the UE is ⁇ 1, -j ⁇ or ⁇ -1, j ⁇ .
  • the switch between the two options can be configured by MAC CE or by RRC signaling.
  • the cross polarization phase can be selected between [1, 1; 1, -1] and [1, 1; j, -j].
  • the following two-level codebook may be designed as follows:
  • Option 1 The four c1,0 restriction sets are ⁇ 1,-j ⁇ , ⁇ -1,j ⁇ , ⁇ 1,j ⁇ and ⁇ -1,-j ⁇ .
  • the base station indicates that the candidate set of the cross-polarization phase selectable by the UE is one of four options by 2 bits.
  • Option 2 The two c1,0 restriction sets are ⁇ 1,j,-1 ⁇ , ⁇ -1,j,-j ⁇ , ⁇ 1,j,-j ⁇ and ⁇ j,-1,-j ⁇ .
  • the base station indicates that the candidate set of the cross-polarization phase selectable by the UE is one of four options by 2 bits.
  • the switch between the two options can be configured by MAC CE or by RRC signaling.
  • the first transmission layer and the second transmission layer select the same beam; the first transmission layer circulates in [1, 1]; [1, j], and the second transmission layer is selected in [1, -1]; [1 , -j] loop.
  • the first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, 1]; [1, j], and the second transport layer is at [1, -1]; [1, -j] in the loop.
  • the first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, -1]; [1, -j], and the second transport layer is in [1, 1]; [1 , -j] loop.
  • the first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, 1]; [1, -j], and the second transport layer is at [1, 1]; [1, j] in the loop.
  • an apparatus 200 provided by an embodiment of the present application includes at least one processor 21, a communication bus 22, a memory 23, and at least one communication interface 24.
  • the terminal 200 in FIG. 1 can also be the device shown in FIG.
  • the terminal 200 can implement the steps related to the terminal in the indication method of the uplink sub-band precoding matrix in the embodiment of the present application by using the processor 21.
  • the base station 100 in FIG. 1 may also be the apparatus shown in FIG. 18.
  • the base station 100 may implement the steps related to the base station in the indication method of the uplink subband precoding matrix in the embodiment of the present application by using the processor 21.
  • the processor 21 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication bus 22 may include a path for communicating information between the components described above.
  • the communication interface 24 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), WALN, and the like.
  • RAN Radio Access Network
  • WALN Wireless Local Area Network
  • the memory 23 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other medium accessed by the device, but is not limited thereto.
  • the memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.
  • the memory 23 is used to store application code for executing the solution of the present application, and is controlled by the processor 21 for execution.
  • the processor 21 is configured to execute application code stored in the memory 23.
  • processor 21 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • the apparatus 200 can include a plurality of processors, such as the processor 21 and the processor 28 of FIG. Each of these processors can be a single-CPU processor or a multi-core processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the embodiment of the present application may perform the division of the function modules on the device shown in FIG. 18 according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • the apparatus shown in FIG. 18 is presented in the form of dividing each functional module corresponding to each function, or the apparatus is presented in the form of dividing each functional module in an integrated manner.
  • a “module” herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above. Device.
  • ASIC application-specific integrated circuit
  • FIG. 19 shows a possible structural diagram of the device involved in the above embodiment, and the device 900 may be the terminal or the base station in the above embodiment.
  • the device 900 includes a processing unit 901 and a transceiver unit 902.
  • the transceiver unit 902 is configured to send and receive signals by the processing unit 901.
  • the processing unit 901 and the transceiver unit 902 in FIG. 19 can be implemented by the processor 21 (and/or the processor 28) and the memory 23 of FIG. 18.
  • the processing unit 901 and the transceiver unit 902 can be implemented by the processor 21 ( And/or the processor 28) is called to execute the application code stored in the memory 23, and the embodiment of the present application does not impose any limitation thereon.
  • the transceiver unit 902 is configured to receive downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, The bits of the first bit interval are used to indicate the transmit precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is occupied by uplink resource scheduling.
  • the number of the sub-bands is dynamically adjusted; the processing unit 901 is configured to: obtain, according to the downlink control information, a precoding matrix subset corresponding to the sending precoding matrix sequence; and determine, according to the precoding matrix subset, the uplink A precoding matrix for performing uplink data transmission on a subband occupied by resource scheduling.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the width of the sub-band and the number of bits of the first bit interval are configured in the terminal, or are configured to the terminal by a radio resource management RRC command of the base station.
  • one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
  • At least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
  • the 2N bits include at least one redundant bit.
  • the redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the processing unit 901 is specifically configured to: the terminal determine each of the subband groups, and subbands in each subband group; the terminal selects from the precoding matrix subset In a precoding matrix manner, a precoding matrix for performing uplink data transmission on the subband is selected from the precoding matrix subset of the subband group corresponding to any of the subbands.
  • the precoding matrix subset and the manner of selecting the precoding matrix from the precoding matrix subset are configured in the terminal, or are configured to the terminal by using an RRC command of the base station. .
  • the processing unit 901 is configured to determine downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and the first bit The bits of the interval are used to indicate the transmit precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is based on the subband occupied by the uplink resource scheduling. The number is dynamically adjusted; the transceiver unit 902 is configured to send the downlink control information to the terminal, where the downlink control information is used to instruct the terminal to acquire a precoding matrix subset corresponding to the precoding matrix sequence number according to the downlink control information. And determining, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling.
  • the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
  • the transceiver unit 902 is further configured to: send, by the base station, a radio resource management RRC command to the terminal, where the RRC command is used to indicate a width of the subband and a bit of the first bit interval. Number of digits.
  • one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
  • At least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
  • the 2N bits include at least one redundant bit.
  • the redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  • the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
  • the transceiver unit 902 is further configured to: send, by the base station, an RRC command to the terminal, where the RRC command is used to indicate the precoding matrix subset and the slave of each of the subband groups The manner in which the precoding matrix is selected in the subset of precoding matrices.
  • FIG. 20 is a schematic structural diagram of a circuit system (for example, an access point or a communication device such as a base station, a station, or a terminal) provided in an embodiment of the present invention.
  • a circuit system for example, an access point or a communication device such as a base station, a station, or a terminal
  • circuitry 1200 can be implemented by bus 1201 as a general bus architecture.
  • bus 1201 may include any number of interconnect buses and bridges.
  • Bus 1201 connects various circuits together, including processor 1202, storage medium 1203, and bus interface 1204.
  • circuitry 1200 connects network adapters 1205 and the like via bus 1201 using bus interface 1204.
  • the network adapter 1205 can be used to implement signal processing functions of the physical layer in the wireless communication network, and to implement transmission and reception of radio frequency signals through the antenna 1207.
  • the user interface 1206 can be connected to a user terminal such as a keyboard, display, mouse or joystick.
  • the bus 1201 can also be connected to various other circuits, such as timing sources, peripherals, voltage regulators, or power management circuits, etc., which are well known in the art and therefore will not be described in detail.
  • circuitry 1200 can also be configured as a chip or system on a chip that includes one or more microprocessors that provide processor functionality, and external memory that provides at least a portion of storage medium 1203, all of which Both are connected to other support circuits through an external bus architecture.
  • circuitry 1200 can be implemented using an ASIC (application specific integrated circuit) having a processor 1202, a bus interface 1204, a user interface 1206, and at least a portion of a storage medium 1203 integrated in a single chip, or Circuitry 1200 can be implemented using one or more FPGAs (Field Programmable Gate Arrays), PLDs (Programmable Logic Devices), controllers, state machines, gate logic, discrete hardware components, any other suitable circuitry, Or any combination of circuits capable of performing the various functions described throughout the present invention.
  • ASIC application specific integrated circuit
  • FPGAs Field Programmable Gate Arrays
  • PLDs Programmable Logic Devices
  • controllers state machines, gate logic, discrete hardware components, any other suitable circuitry, Or any combination of circuits capable of performing the various functions described throughout the present invention.
  • the processor 1202 is responsible for managing the bus and general processing (including executing software stored on the storage medium 1203).
  • Processor 1202 can be implemented using one or more general purpose processors and/or special purpose processors. Examples of processors include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software.
  • Software should be interpreted broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • Storage medium 1203 is shown separated from processor 1202 in the following figures, however, those skilled in the art will readily appreciate that storage medium 1203, or any portion thereof, may be located external to circuitry 1200.
  • storage medium 1203 can include transmission lines, carrier waveforms modulated with data, and/or computer products separate from wireless nodes, all of which can be accessed by processor 1202 through bus interface 1204.
  • storage medium 1203, or any portion thereof, can be integrated into processor 1202, for example, can be a cache and/or a general purpose register.
  • the processor 1202 can perform the indication method of the uplink sub-band precoding matrix in any of the foregoing embodiments of the present application, and details are not described herein again.
  • FIG. 21 is another schematic structural diagram of a circuit system according to an embodiment of the present invention.
  • the circuitry can be a processor.
  • the processor may be embodied as a chip or a system on chip (SOC), which is disposed in a base station or a terminal of the wireless communication system according to the embodiment of the present invention, so that the base station or the terminal implements the wireless communication method of the embodiment of the present invention.
  • the circuit system 60 includes an interface unit 601, a control and operation unit 602, and a storage unit 603.
  • the interface unit is for communicating with other components of the base station or terminal
  • the storage unit 603 is for storing computer programs or instructions
  • the control and operation unit 602 is for decoding and executing the computer programs or instructions.
  • these computer programs or instructions may include the terminal function programs described above, as well as the base station function programs described above.
  • the terminal function program When the terminal function program is controlled and the operation unit 602 is decoded and executed, the terminal can be configured to implement the indication method of the uplink sub-band precoding matrix and the function of the terminal in the embodiment of the present invention.
  • the base station function program When the base station function program is decoded and executed by the control and operation unit 602, the base station can be configured to implement the function of the base station in the indication method of the uplink subband precoding matrix in the embodiment of the present invention.
  • these terminal function programs or base station function programs are stored in a memory external to circuitry 60.
  • the storage unit 603 temporarily stores part or all of the contents of the terminal function program, or temporarily stores part or all of the contents of the base station function program.
  • these terminal function programs or base station function programs are disposed in a storage unit 603 stored within circuitry 60.
  • the circuit system 60 can be disposed in the terminal 200 of the wireless communication system of the embodiment of the present invention.
  • the base station function program is stored in the storage unit 603 inside the circuit system 60, the circuit system 60 can be disposed in the base station 100 of the wireless communication system of the embodiment of the present invention.
  • portions of the terminal function program or base station function program are stored in a memory external to circuitry 60, and other portions of the terminal function program or base station function program are stored within circuitry system 60. In the storage unit 603.
  • the present application provides a computer readable storage medium having instructions stored therein that, when run on a computer, cause the computer to execute the various embodiments and terminals involved in the present application Related method steps.
  • the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform various embodiments in accordance with the present application with a base station Related method steps.
  • the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method steps associated with the terminal in various embodiments of the present application.
  • the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method steps associated with the base station in various embodiments of the present application.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • embodiments of the present application can be provided as a method, apparatus (device), or computer program product.
  • the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects, which are collectively referred to herein as "module” or “system.”
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the various illustrative logic blocks, modules and circuits described in the embodiments of the present application may be implemented by a general purpose processing unit, a digital signal processing unit, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic. Devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the functions described.
  • the general purpose processing unit may be a micro processing unit.
  • the general purpose processing unit may be any conventional processing unit, controller, microcontroller or state machine.
  • the processing unit may also be implemented by a combination of computing devices, such as a digital signal processing unit and a microprocessing unit, a plurality of microprocessing units, one or more microprocessing units in conjunction with a digital signal processing unit core, or any other similar configuration. achieve.
  • the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium.
  • Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another.
  • the storage medium can be any available media that any general purpose or special computer can access.
  • Such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general or special processing unit.
  • any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium.
  • DSL digital subscriber line
  • the disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.

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Abstract

Disclosed in the present application are a method for indicating an uplink sub-band precoding matrix, a terminal, and a base station. The method comprises: a terminal receives downlink control information sent by a base station, the downlink control information comprising a first bit interval, the quantity of digits of bits of the first bit interval being fixed, and the bits of the first bit interval being used for indicating a transmitted precoding matrix index of a sub-band set, the sub-band set comprising one or more sub-bands, and the quantity of sub-bands in the sub-band set being dynamically adjusted based on the quantity of sub-bands occupied in uplink resource scheduling; the terminal obtains a precoding matrix subset corresponding to the transmitted precoding matrix index; and determine, according to the precoding matrix subset, precoding matrices for performing uplink data transmission on the sub-bands occupied in the uplink resource scheduling. In the method, the width of a sub-band set can be adjusted according to the width of uplink resource scheduling, so that a precoding matrix is indicated by means of the sub-band set, which facilitates signal interference management on a sub-band level and helps to improve performance of uplink data transmission.

Description

一种上行子带预编码矩阵的指示方法、终端及基站Method, terminal and base station for indicating uplink subband precoding matrix 技术领域Technical field
本申请涉及移动通信技术领域，尤其涉及一种上行子带预编码矩阵的指示方法、终端及基站。The present application relates to the field of mobile communications technologies, and in particular, to an indication method, a terminal, and a base station of an uplink subband precoding matrix.
背景技术Background technique
在第三代合作伙伴计划(3rd generation partnership project，3GPP)新空口(New Radio access technology，NR)的讨论中，目前上行多天线传输是确定被支持的。上行多天线传输的机制与下行类似，终端先发送探测参考信号(sounding reference signal，SRS)，基站接收SRS并通过信道估计获知上行的信道状态，进而通过发送下行控制信息(downlink control information，DCI)调度上行传输。基于目前NR讨论的结论，可以支持最多到4个上行SRS端口。另外，考虑基于码本的上行传输的情况，基站在指示终端上行传输时，可以通过一个预先定义的码本，来指示上行多天线传输的预编码矩阵。具体而言，这个码本包括N个可供选择的预编码码字，基于终端发送的SRS，基站从N个码字中选择1个，确定为在这些SRS端口上需要采用的预编码矩阵，并发送发射预编码矩阵序号(transmitted precoding matrix index，TPMI)来指示在这些SRS端口上需要采用的预编码矩阵。终端在接收到上行调度的DCI后，通过读取TPMI的指示比特，获知上行传输所需采用的预编码矩阵。In the discussion of the 3rd generation partnership project (3GPP) New Radio access technology (NR), the current uplink multi-antenna transmission is determined to be supported. The mechanism of uplink multi-antenna transmission is similar to that of downlink. The terminal first transmits a sounding reference signal (SRS). The base station receives the SRS and learns the channel state of the uplink through channel estimation, and then sends downlink control information (DCI). Schedule uplink transmission. Based on the conclusions of the current NR discussion, up to 4 uplink SRS ports can be supported. In addition, considering the case of uplink transmission based on the codebook, when indicating the uplink transmission of the terminal, the base station may indicate the precoding matrix of the uplink multi-antenna transmission through a predefined codebook. Specifically, the codebook includes N candidate precoding codewords. Based on the SRS sent by the terminal, the base station selects one of the N codewords and determines the precoding matrix to be used on the SRS ports. And transmitting a transmitted precoding matrix index (TPMI) to indicate a precoding matrix that needs to be adopted on these SRS ports. After receiving the uplink scheduled DCI, the terminal learns the precoding matrix required for the uplink transmission by reading the indication bit of the TPMI.
如果上行传输支持频率选择性的预编码。频率选择性的预编码，指的是将DCI所调度的，用于上行传输的物理资源，在频域上划分为多个子带，在不同的子带上，上行传输所需采用的预编码矩阵不同。因此，在频率选择性预编码的场景下，DCI需要包括每个子带的TPMI的指示。If the uplink transmission supports frequency selective precoding. Frequency-selective precoding refers to a physical resource that is scheduled by the DCI and used for uplink transmission. The frequency domain is divided into multiple sub-bands. On different sub-bands, the precoding matrix required for uplink transmission is used. different. Therefore, in the case of frequency selective precoding, the DCI needs to include an indication of the TPMI of each subband.
而目前，针对不同的频域调度宽度，子带宽度也不同，例如，如果***通过RRC信令配置子带数目为3，假设基站调度了90个PRB，则该UE的子带宽度为30；假设基站调度了45个PRB，则该UE的子带宽度为15；假设基站调度了3个PRB，则该UE的子带宽度为1个PRB。子带宽度随调度区域不断变化时，基站给终端指示上行传输的子带TPMI也要发生变化，在子带上进行上行传输所采用的预编码矩阵也随之变化，这样不利于上行传输的子带级的信号干扰管理，还降低了上行传输的性能。Currently, the subband width is different for different frequency domain scheduling widths. For example, if the number of subbands configured by the system through RRC signaling is 3, and the base station schedules 90 PRBs, the subband width of the UE is 30. Assuming that the base station schedules 45 PRBs, the subband width of the UE is 15; if the base station schedules 3 PRBs, the subband width of the UE is 1 PRB. When the sub-band width changes continuously with the scheduling area, the base station indicates to the terminal that the sub-band TPMI for uplink transmission also changes, and the pre-coding matrix used for uplink transmission on the sub-band also changes, which is disadvantageous for the uplink transmission. Band-level signal interference management also reduces the performance of upstream transmissions.
综上，现有的基于调度宽度决定子带宽度的方式，导致子带上的上行传输的传输性能不稳定。In summary, the existing method of determining the sub-band width based on the scheduling width results in unstable transmission performance of the uplink transmission on the sub-band.
发明内容Summary of the invention
本申请提供一种上行子带预编码矩阵的指示方法、终端及基站，改进了上行子带通过下行控制信息进行预编码矩阵指示的指示方式，用以提升上行数据传输性能。The present invention provides an indication method, a terminal, and a base station of an uplink sub-band precoding matrix, and improves an indication manner of an uplink sub-band to perform precoding matrix indication by using downlink control information, so as to improve uplink data transmission performance.
本申请中，为了提升上行数据传输性能，一方面保持子带宽度只和***带宽有关，相 对于现有技术，由于子带的宽度不再随上行资源调度的频域宽度变化，可以统一进行子带级的信号干扰管理，保持上行传输的稳定性。另一方面，令下行控制信息中原来指示子带的预编码矩阵的比特，用来指示子带组的预编码矩阵子集，由于子带的宽度相对固定，可根据上行资源调度的宽度动态调整子带组中的子带数目，进而保持指示比特的位数不变，这样下行控制信息DCI的比特长度固定，保证下行控制信息正常被终端获取，保持了上行数据传输正常进行。In this application, in order to improve the uplink data transmission performance, on the one hand, the sub-band width is only related to the system bandwidth. Compared with the prior art, since the width of the sub-band does not change with the frequency domain width of the uplink resource scheduling, the sub-band can be unified. Band-level signal interference management to maintain the stability of uplink transmission. On the other hand, the bits of the precoding matrix of the original subband in the downlink control information are used to indicate the precoding matrix subset of the subband group. Since the width of the subband is relatively fixed, the uplink resource scheduling width can be dynamically adjusted. The number of subbands in the subband group is kept unchanged, so that the bit length of the downlink control information DCI is fixed, so that the downlink control information is normally acquired by the terminal, and the uplink data transmission is maintained normally.
为实现上述发明目的，第一方面，本申请提供一种上行子带预编码矩阵的指示方法，应用于终端侧，该方法包括：终端接收基站发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；所述终端根据所述下行控制信息，获取所述发送预编码矩阵序号对应的预编码矩阵子集；所述终端根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。In order to achieve the foregoing object, the first aspect of the present disclosure provides a method for indicating an uplink sub-band precoding matrix, which is applied to a terminal side, where the method includes: receiving, by a terminal, downlink control information sent by a base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one or more sub And the number of the sub-bands in the sub-band group is dynamically adjusted according to the number of sub-bands occupied by the uplink resource scheduling. The terminal acquires the pre-coding matrix corresponding to the sequence of the pre-coding matrix according to the downlink control information. And determining, by the terminal, the precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling according to the precoding matrix subset.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，所述子带的宽度和所述第一比特区间的比特位数被配置在所述终端中，或者通过所述基站的无线资源控制(radio resource control，RRC)指令配置给所述终端。In a possible design, the width of the subband and the number of bits of the first bit interval are configured in the terminal, or are configured by radio resource control (RRC) of the base station. To the terminal.
在一个可能的设计中，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。In one possible design, one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the sub-subs The number of subbands in the band group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; the number of subbands occupied by the uplink resource scheduling When n satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and the number of subbands in each of the remaining subband groups is p. Where p = 2 k , k ≥ 0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), at least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the The number of subbands in the subband group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; when the subband occupied by the uplink resource scheduling When the number n satisfies p*N<n≤2*p*N, the number of sub-bands in one of the sub-band groups is less than or equal to 2*p, and the number of sub-bands in each of the remaining sub-band groups is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比 特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit. The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当n≤N时，每一个所述子带组中的子带数目为1个；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2k，k≥0；所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the transmit precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. a continuous bit; when n≤N, the number of subbands in each of the subband groups is one; when the number of subbands occupied by the uplink resource scheduling is n, p*N<n≤2*p*N Where, where p=2k, k≥0; the number of subband groups is N, and the number of subbands included in the N subband groups is p, 2*p, and (p+1+(n) -1) Any two or three of mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
可选的，若
Figure PCTCN2018105638-appb-000001
且
Figure PCTCN2018105638-appb-000002
则当子带组的序号小于
Figure PCTCN2018105638-appb-000003
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000004
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000005
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000001
And
Figure PCTCN2018105638-appb-000002
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000003
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000004
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000005
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000006
则当子带组的序号等于
Figure PCTCN2018105638-appb-000007
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000008
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000006
Then when the subband group number is equal to
Figure PCTCN2018105638-appb-000007
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000008
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000009
则当子带组的序号小于
Figure PCTCN2018105638-appb-000010
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000011
时，该子带组中的子带数目为(p+1+(n-1)mod p)个。 Optional if
Figure PCTCN2018105638-appb-000009
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000010
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000011
The number of subbands in the subband group is (p+1+(n-1) mod p).
在一个可能的设计中，所述终端根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵，包括：所述终端确定每一所述子带组，以及每一子带组中的子带；所述终端按照从所述预编码矩阵子集中选择预编码矩阵的方式，从任一所述子带对应的子带组的所述预编码矩阵子集中，选择出在所述子带上进行上行数据传输的预编码矩阵。In a possible design, the terminal determines, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling, where: the terminal determines each Determining a subband group, and subbands in each subband group; said terminal selecting said precoding matrix from said subset of precoding matrices from said subband group corresponding to said subband In the precoding matrix subset, a precoding matrix for performing uplink data transmission on the subband is selected.
在一个可能的设计中，所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式被配置在所述终端中，或者通过所述基站的RRC指令配置给所述终端。In a possible design, the precoding matrix subset and the manner of selecting the precoding matrix from the precoding matrix subset are configured in the terminal, or are configured to the terminal by using an RRC command of the base station. .
第二方面，为了实现上述发明目的，本申请提供一种上行子带预编码矩阵的指示方法，应用于基站侧，其特征在于，包括：基站确定向终端发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述 子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；基站向终端发送所述下行控制信息，所述下行控制信息用于指示所述终端根据所述下行控制信息，获取所述预编码矩阵序号对应的预编码矩阵子集，以及根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。In a second aspect, in order to achieve the foregoing object, the present disclosure provides a method for indicating an uplink sub-band precoding matrix, which is applied to a base station side, and includes: determining, by a base station, downlink control information that is sent to a terminal, where the downlink control is performed. The information includes a first bit interval, where the bit number of the first bit interval is fixed, and the bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one Or a plurality of sub-bands, and the number of the sub-bands in the sub-band group is dynamically adjusted according to the number of sub-bands occupied by the uplink resource scheduling; the base station sends the downlink control information to the terminal, where the downlink control information is used to indicate the terminal Obtaining, according to the downlink control information, a precoding matrix subset corresponding to the precoding matrix sequence, and determining, according to the precoding matrix subset, uplink data transmission on the subband occupied by the uplink resource scheduling Precoding matrix.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，所述方法还包括：所述基站向所述终端发送无线资源管理RRC指令，所述RRC指令用于指示所述子带的宽度和所述第一比特区间的比特位数。In a possible design, the method further includes: the base station sending a radio resource management RRC command to the terminal, where the RRC command is used to indicate a width of the subband and a bit of the first bit interval. number.
在一个可能的设计中，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。In one possible design, one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the sub-subs The number of subbands in the band group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; the number of subbands occupied by the uplink resource scheduling When n satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and the number of subbands in each of the remaining subband groups is p. Where p = 2 k , k ≥ 0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), at least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the The number of subbands in the subband group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; when the subband occupied by the uplink resource scheduling When the number n satisfies p*N<n≤2*p*N, the number of sub-bands in one of the sub-band groups is less than or equal to 2*p, and the number of sub-bands in each of the remaining sub-band groups is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit. The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the transmit precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. a continuous bit; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0, the number of the subband groups is N And the number of sub-bands included in the N sub-band groups is any two or three of p, 2*p, and (p+1+(n-1) mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
可选的，若
Figure PCTCN2018105638-appb-000012
且
Figure PCTCN2018105638-appb-000013
则当子带组的序号小于
Figure PCTCN2018105638-appb-000014
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000015
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000016
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000012
And
Figure PCTCN2018105638-appb-000013
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000014
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000015
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000016
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000017
则当子带组的序号等于
Figure PCTCN2018105638-appb-000018
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000019
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000017
Then when the subband group number is equal to
Figure PCTCN2018105638-appb-000018
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000019
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000020
则当子带组的序号小于
Figure PCTCN2018105638-appb-000021
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000022
时，该子带组中的子带数目为(p+1+(n-1)mod p)个。 Optional if
Figure PCTCN2018105638-appb-000020
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000021
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000022
The number of subbands in the subband group is (p+1+(n-1) mod p).
在一个可能的设计中，所述方法还包括：所述基站向所述终端发送RRC指令，所述RRC指令用于指示每一个所述子带组的所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式。In a possible design, the method further includes: the base station sending an RRC command to the terminal, where the RRC command is used to indicate the precoding matrix subset of each of the subband groups and from the The way in which the precoding matrix is selected in the subset of precoding matrices.
第三方面，为了实现上述发明目的，本申请提供一种终端，包括：处理器和收发器；In a third aspect, in order to achieve the foregoing object, the present application provides a terminal, including: a processor and a transceiver;
所述收发器用于：接收基站发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；所述处理器用于：根据所述收发器接收的所述下行控制信息，获取所述发送预编码矩阵序号对应的预编码矩阵子集；根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。The transceiver is configured to: receive downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used for an indicator a transmission precoding matrix sequence number of the group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by uplink resource scheduling; The device is configured to: obtain, according to the downlink control information received by the transceiver, a precoding matrix subset corresponding to the sending precoding matrix sequence; and determine, according to the precoding matrix subset, that the uplink resource scheduling is occupied A precoding matrix for uplink data transmission on the subband.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer;
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is Less than or equal to p, the number of subbands in each of the remaining subband groups is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer;
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连 续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, one of the subbands in the subband group The number is less than or equal to 2*p, and the number of subbands in each of the remaining subband groups is 2*p, where p=2 k , k≥0, and the transmission preamble of each of the subband groups The coding matrix sequence occupies two consecutive bits of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当n≤N时，每一个所述子带组中的子带数目为1个；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmit precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval. a bit; when n≤N, the number of subbands in each of the subband groups is one; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N Where p = 2 k , k ≥ 0, the number of subband groups is N, and the number of subbands included in the N subband groups is p, 2*p, and (p+1+(n) -1) Any two or three of mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
在一种可能的设计中，该终端的结构中包括处理器和收发器，所述处理器被配置为支持终端执行上述方法中相应的功能。所述收发器用于支持终端与基站之间的通信，向基站发送上述方法中所涉及的信息或者指令。终端中还可以包括存储器，所述存储器用于与处理器耦合，其保存终端必要的程序指令和数据。In one possible design, the structure of the terminal includes a processor and a transceiver configured to support the terminal to perform corresponding functions in the above methods. The transceiver is configured to support communication between the terminal and the base station, and send information or instructions involved in the foregoing method to the base station. The terminal may also include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.
第四方面，为了实现上述发明目的，本申请提供一种基站，包括：处理器和收发器；In a fourth aspect, in order to achieve the foregoing object, the present application provides a base station, including: a processor and a transceiver;
所述处理器用于：确定向终端发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；所述收发器用于：向终端发送所述下行控制信息，所述下行控制信息用于指示所述终端根据所述下行控制信息，获取所述预编码矩阵序号对应的预编码矩阵子集，以及根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。The processor is configured to: determine downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling; The transceiver is configured to: send the downlink control information to the terminal, where the downlink control information is used to instruct the terminal to acquire, according to the downlink control information, a precoding matrix subset corresponding to the precoding matrix sequence number, and according to the The precoding matrix subset determines a precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer;
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is Less than or equal to p, the number of subbands in each of the remaining subband groups is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer;
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所 述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, one of the subbands in the subband group The number is less than or equal to 2*p, and the number of subbands in each of the remaining subband groups is 2*p, where p=2 k , k≥0, and the transmission preamble of each of the subband groups The coding matrix sequence occupies two consecutive bits of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当n≤N时，每一个所述子带组中的子带数目为1个；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmit precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval. a bit; when n≤N, the number of subbands in each of the subband groups is one; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N Where p = 2 k , k ≥ 0, the number of subband groups is N, and the number of subbands included in the N subband groups is p, 2*p, and (p+1+(n) -1) Any two or three of mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
在一种可能的设计中，所述处理器被配置为支持基站执行上述方法中基站相应的功能。所述收发器用于支持基站与终端之间的通信，向终端发送上述方法中所涉及的信息或者指令。基站中还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。In one possible design, the processor is configured to support a base station to perform the corresponding functions of the base station in the above method. The transceiver is configured to support communication between the base station and the terminal, and send information or instructions involved in the foregoing method to the terminal. A memory may also be included in the base station for coupling with the processor, which stores the necessary program instructions and data for the base station.
第五方面，为了实现上述发明目的，本申请提供一种电路***，所述电路***包括提供处理器功能的芯片或片上***，所述芯片或所述片上***被配置在终端中，使得所述终端实现上述第一方面或第一方面的任意可能的实现方式；或者，所述芯片或所述片上***被配置在基站中，使得所述基站实现上述第一方面或第一方面的任意可能的实现方式。In a fifth aspect, in order to achieve the above object, the present application provides a circuit system including a chip or a system on a chip that provides a processor function, the chip or the system on chip being configured in a terminal such that the The terminal implements any of the above first aspects or any possible implementation of the first aspect; or the chip or the system on chip is configured in a base station such that the base station implements any of the above aspects or the first aspect Method to realize.
附图说明DRAWINGS
图1为本申请提供的一种无线通信***的架构示意图；1 is a schematic structural diagram of a wireless communication system provided by the present application;
图2为本申请提供的一种上行子带预编码矩阵的指示方法的方法流程图；2 is a flowchart of a method for indicating an uplink subband precoding matrix provided by the present application;
图3为本申请提供的一种非连续资源调度时上行资源调度所占用的子带数目的确定方法示例；FIG. 3 is a schematic diagram of a method for determining a number of subbands occupied by uplink resource scheduling in a discontinuous resource scheduling according to the present application;
图4为本申请提供的一种子带组的子带数目的配置的示例之一；4 is an example of a configuration of a number of subbands of a subband group provided by the present application;
图5为本申请提供的一种子带组的子带数目的配置的示例之二；FIG. 5 is a second example of the configuration of the number of subbands of a subband group provided by the present application;
图6为本申请提供的一种子带组的子带数目的配置的示例之三；6 is a third example of the configuration of the number of subbands of a subband group provided by the present application;
图7为本申请提供的一种子带组的子带数目的配置的示例之四；FIG. 7 is a fourth example of the configuration of the number of subbands of a subband group provided by the present application; FIG.
图8为本申请提供的一种子带组的子带数目的配置的示例之五；8 is a fifth example of the configuration of the number of subbands of a subband group provided by the present application;
图9为本申请提供的一种子带组的子带数目的配置的示例之六；FIG. 9 is a sixth example of the configuration of the number of subbands of a subband group provided by the present application;
图10为本申请提供的一种子带组的子带数目的配置的示例之七；10 is an example 7 of a configuration of a number of subbands of a subband group provided by the present application;
图11为本申请提供的一种子带组的子带数目的配置的示例之八；11 is an eighth example of the configuration of the number of subbands of a subband group provided by the present application;
图12为本申请提供的一种子带组的子带数目的配置的示例之九；Figure 12 is a ninth example of the configuration of the number of subbands of a subband group provided by the present application;
图13为本申请提供的一种子带组的子带数目的配置的示例之十；13 is an example 10 of a configuration of a number of subbands of a subband group provided by the present application;
图14为本申请提供的一种子带组的子带数目的配置的示例之十一；14 is an eleventh example of the configuration of the number of subbands of a subband group provided by the present application;
图15为本申请提供的一种子带组的子带数目的配置的示例之十二；15 is an example 12 of an example of a configuration of a number of subbands of a subband group provided by the present application;
图16为本申请提供的一种子带组的子带数目的配置的示例之十三；16 is an example 13 of the configuration of the number of subbands of a subband group provided by the present application;
图17为本申请提供的一种子带组的子带数目的配置的示例之十四；17 is a fourteenth example of a configuration of the number of subbands of a subband group provided by the present application;
图18为本申请提供的一种装置的结构示意图；Figure 18 is a schematic structural view of a device provided by the present application;
图19为本申请提供的另一种装置的结构示意图；Figure 19 is a schematic structural view of another device provided by the present application;
图20为本申请提供的一种电路***的结构示意图；20 is a schematic structural diagram of a circuit system provided by the present application;
图21为本申请提供的另一种电路***的结构示意图。FIG. 21 is a schematic structural diagram of another circuit system provided by the present application.
具体实施方式Detailed ways
下面将结合附图对本申请作进一步地详细描述。The present application will be further described in detail below with reference to the accompanying drawings.
下面介绍一下本申请的***运行环境，本申请描述的技术可以适用于LTE***，如LTE/LTE-A/eLTE***,或其他采用各种无线接入技术的无线通信***，例如采用码分多址(code division multiple access,CDMA)，频分多址(frequency division multiple access,FDMA)，时分多址(time division multiple access,TDMA)，正交频分多址(orthogonal frequency division multiple access,OFDMA)，单载波频分多址(single carrier-frequency division multiple access,SC-FDMA)等接入技术的***，还适用于后续的演进***，如第五代5G(还可以称为新无线电(new radio,NR))***等，也可以扩展到类似的无线通信***中，如wifi、wimax、以及3gpp相关的蜂窝***。The following describes the system operating environment of the present application. The technology described in this application can be applied to LTE systems, such as LTE/LTE-A/eLTE systems, or other wireless communication systems using various wireless access technologies, for example, using multiple code divisions. Code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA) The system of access technologies such as single carrier-frequency division multiple access (SC-FDMA) is also applicable to subsequent evolved systems, such as the fifth generation 5G (also known as new radio) , NR)) systems, etc., can also be extended to similar wireless communication systems, such as wifi, wimax, and 3gpp-related cellular systems.
图1给出了一种通信***的示意图。该通信***可以包括至少一个基站100(仅示出1个)以及与基站100连接的一个或多个终端200。Figure 1 shows a schematic diagram of a communication system. The communication system may include at least one base station 100 (only one shown) and one or more terminals 200 connected to the base station 100.
基站100可以是能和终端200通信的设备。基站100可以是任意一种具有无线收发功能的设备。包括但不限于：基站NodeB、演进型基站eNodeB、第五代(the fifth generation，5G)通信***中的基站、未来通信***中的基站或基站、WiFi***中的接入节点、无线中继节点、无线回传节点等。基站100还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。基站100还可以是5G网络中的基站或未来演进网络中的基站；还可以是可穿戴设备或车载设备等。基站100还可以是小站，传输节点(transmission reference point，TRP)等。当然不申请不限于此。 Base station 100 can be a device that can communicate with terminal 200. The base station 100 can be any device having a wireless transceiving function. Including but not limited to: a base station NodeB, an evolved base station eNodeB, a base station in a fifth generation (5G) communication system, a base station or base station in a future communication system, an access node in a WiFi system, and a wireless relay node , wireless backhaul nodes, etc. The base station 100 may also be a wireless controller in a cloud radio access network (CRAN) scenario. The base station 100 may also be a base station in a 5G network or a base station in a future evolved network; it may also be a wearable device or an in-vehicle device or the like. The base station 100 can also be a small station, a transmission reference point (TRP), or the like. Of course, no application is not limited to this.
终端200是一种具有无线收发功能的设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端、增强现实(Augmented Reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端有时也可以称为用户设备(user equipment，UE)、接入终端、UE单元、UE站、移动站、移动台、远方站、远程终端、移动设备、UE终端、终端、无线通信设备、UE代理或UE装置等。The terminal 200 is a device with wireless transceiving function that can be deployed on land, including indoor or outdoor, handheld, wearable or on-board; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (for example, an airplane or a balloon). And satellites, etc.). The terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control. Wireless terminal, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety, A wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The embodiment of the present application does not limit the application scenario. A terminal may also be referred to as a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, and a UE. Agent or UE device, etc.
需要说明的是，本发明实施例中的术语“***”和“网络”可被互换使用。“多个”是指两个或两个以上，鉴于此，本发明实施例中也可以将“多个”理解为“至少两个”。“和/或”，描 述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。It should be noted that the terms "system" and "network" in the embodiments of the present invention may be used interchangeably. "Multiple" means two or more, and in view of this, "a plurality" may also be understood as "at least two" in the embodiment of the present invention. "and/or" describes the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately. In addition, the character "/", unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
为了使基于子带的上行传输性能稳定，本申请相对于现有技术，子带宽度与***调度的物理资源数目无关，令子带宽度与***带宽有关，在***带宽为固定值时，子带宽度也是固定值，从而能保证上行传输的性能不受调度频域宽度的影响；此外，通过DCI指示子带预编码矩阵的相关信息时，指示比特的位数固定，例如指示比特的位数不超过10个比特，从而能够保证DCI的长度不受影响；为了能够保证指示比特位数固定，令指示比特指示的不是一个子带的TPMI，而是一个子带组的TPMI，一个子带组中包括一个或多个子带，这样在进行资源调度时，保证了子带带宽不会随着调度的频域宽度的变化而变化，而是子带组中的子带数目随着调度的频域宽度的变化，子带组的子带数目并不影响DCI中的指示比特。In order to stabilize the sub-band-based uplink transmission performance, the sub-band width is independent of the number of physical resources scheduled by the system, and the sub-band width is related to the system bandwidth. When the system bandwidth is a fixed value, the sub-band width is used. It is also a fixed value, so that the performance of the uplink transmission is not affected by the frequency domain width of the scheduling; in addition, when the information about the sub-band precoding matrix is indicated by the DCI, the number of bits of the indication bit is fixed, for example, the number of bits of the indication bit does not exceed 10 bits, so as to ensure that the length of the DCI is not affected; in order to ensure that the number of indication bits is fixed, the indication bit indicates not the TPMI of one subband, but the TPMI of a subband group, including in a subband group One or more sub-bands, so that when resource scheduling is performed, it is ensured that the sub-band bandwidth does not change with the frequency domain width of the scheduling, but the number of sub-bands in the sub-band group follows the frequency domain width of the scheduling. Change, the number of subbands of the subband group does not affect the indication bits in the DCI.
基于这一发明构思，本申请提供一种上行子带预编码矩阵的指示方法，可以应用在上行的频率选择性预编码技术中，在下行控制信令的比特位数受限的条件下，其指示的方式为通过下行控制信令向终端指示每个子带组的TPMI，终端获取子带组的TPMI后，根据为子带组的TPMI配置的预编码矩阵子集，确定子带组中子带的预编码矩阵。Based on the inventive concept, the present application provides an indication method of an uplink sub-band precoding matrix, which can be applied to an uplink frequency selective precoding technology, where the number of bits of the downlink control signaling is limited, The indication manner is that the TPMI of each sub-band group is indicated to the terminal by using the downlink control signaling, and after acquiring the TPMI of the sub-band group, the terminal determines the sub-band in the sub-band group according to the pre-coding matrix subset configured for the TPMI of the sub-band group. Precoding matrix.
下面结合具体的示例进行说明。The following description will be made with reference to specific examples.
如图2所示，本申请提供一种上行子带预编码矩阵的指示方法，包括以下步骤：As shown in FIG. 2, the application provides an indication method of an uplink subband precoding matrix, which includes the following steps:
步骤201，基站确定下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组包括的子带数目基于上行资源调度所占用的子带数目动态调整；Step 201: The base station determines downlink control information, where the downlink control information includes a first bit interval, where the bit number of the first bit interval is fixed, and the bit of the first bit interval is used to indicate a transmission pre-sort of the sub-band group. An encoding matrix sequence number; wherein the subband group includes one or more subbands, and the number of subbands included in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
步骤202，基站向终端发送下行控制信息；Step 202: The base station sends downlink control information to the terminal.
步骤203，终端接收基站发送的下行控制信息，根据接收的所述下行控制信息，获取所述发送预编码矩阵序号对应的预编码矩阵子集；根据预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。Step 203: The terminal receives the downlink control information sent by the base station, and obtains a precoding matrix subset corresponding to the sending precoding matrix sequence according to the received downlink control information; and determines, according to the precoding matrix subset, the uplink resource. A precoding matrix for performing uplink data transmission on the subband occupied by the scheduling.
需要说明的是，在基于码本的上行传输中，在上述步骤之前，还包括：基站需要通过发送RRC消息，将终端的上行预编码配置成频率选择性的上行预编码。It should be noted that, in the uplink transmission based on the codebook, before the foregoing step, the base station needs to configure the uplink precoding of the terminal to be frequency selective uplink precoding by sending an RRC message.
本申请中，子带的宽度以资源块(Resource Block，RB)为粒度时，子带的宽度是指子带在频域上占用连续的RB个数。由于资源调度也可以以物理资源块(physical resource block，PRB)为粒度进行调度，因此，子带的宽度除了以RB为粒度，也可以是以PRB为粒度。以PRB为粒度时，子带的宽度为每个子带在频域上占据的连续PRB数目，其中，子带的宽度与上行资源调度实际调度的PRB数没有关系。In the present application, when the width of the subband is a resource block (RB), the width of the subband refers to the number of consecutive RBs in the frequency domain. The resource scheduling can also be scheduled with a granularity of a physical resource block (PRB). Therefore, the width of the subband may be a granularity of the RB, or may be a granularity of the PRB. When the PRB is used as the granularity, the width of the subband is the number of consecutive PRBs occupied by each subband in the frequency domain, wherein the width of the subband has no relationship with the number of PRBs actually scheduled by the uplink resource scheduling.
本申请中所说的物理资源块(physical resource block，PRB)，是一种时频资源的单位，在时域上占用1个子帧或1个时隙，LTE中，在时域上占一个子帧中连续的14个OFDM符号，频域上占用连续的12个子载波。The physical resource block (PRB) in the present application is a unit of time-frequency resources, occupying 1 subframe or 1 slot in the time domain, and occupying a sub-time in the LTE domain. There are 14 consecutive OFDM symbols in the frame, occupying 12 consecutive subcarriers in the frequency domain.
本申请中，无论哪一种粒度，子带的宽度(以下简称子带宽度)根据所述终端被配置的***带宽确定。例如，一种***带宽对应一种子带宽度，或者一种***带宽对应多个子 带宽度，具体使用哪一个子带宽度由基站配置。由于***带宽比较固定，以PRB为粒度为例，在一个子带占用的这一个或多个频域连续的PRB内，物理上行数据信道和解调参考信号的预编码矩阵一样，且保持不变。In the present application, regardless of the granularity, the width of the sub-band (hereinafter referred to as the sub-band width) is determined according to the system bandwidth in which the terminal is configured. For example, one system bandwidth corresponds to one subband width, or one system bandwidth corresponds to multiple subband widths, and which subband width is specifically configured by the base station. As the system bandwidth is relatively fixed, taking the PRB as the granularity, the physical uplink data channel and the precoding matrix of the demodulation reference signal are the same and remain unchanged in the one or more frequency domain continuous PRBs occupied by one subband. .
本申请中，对于子带带宽的指示方式，可以有多种方式。In the present application, there are various ways for indicating the subband bandwidth.
可选的，在上述步骤201之前，基站通过RRC信令向终端指示子带宽度。例如，通过在RRC信令中增加一个“子带宽度”的***参数来显式的指示子带宽度；也可以基于某一确定的***带宽或其它的***参数到子带宽度的映射关系表，通过指示某一***带宽或其它的***参数，来隐式的指示子带宽度。Optionally, before the foregoing step 201, the base station indicates the subband width to the terminal by using RRC signaling. For example, the subband width is explicitly indicated by adding a system parameter of “subband width” in the RRC signaling; or based on a certain system bandwidth or other system parameter to subband width mapping table, The subband width is implicitly indicated by indicating a system bandwidth or other system parameters.
可选的，子带带宽还可以在标准中定义，以将子带带宽配置在终端中。Optionally, the subband bandwidth can also be defined in the standard to configure the subband bandwidth in the terminal.
本申请中的下行控制信息是指用于上行调度的DCI，DCI中的第一比特区间所占的比特数目是固定的。The downlink control information in this application refers to the DCI used for uplink scheduling, and the number of bits occupied by the first bit interval in the DCI is fixed.
可选的，在上述步骤之前，基站可以通过RRC信息向终端指示第一比特区间所占的比特数目。例如，假设这一比特数目为2N，N为正整数，基站可以通过RRC信息，配置N的值，使得终端确定指示子带组的TPMI的指示比特的比特数目。Optionally, before the foregoing step, the base station may indicate, by using the RRC information, the number of bits occupied by the first bit interval to the terminal. For example, assuming that the number of bits is 2N and N is a positive integer, the base station can configure the value of N through the RRC information, so that the terminal determines the number of bits of the indication bit indicating the TPMI of the subband group.
可选的，第一比特区间所占的比特数目还可以在标准中定义，以将第一比特区间所占的比特数目配置在终端中。Optionally, the number of bits occupied by the first bit interval may also be defined in a standard to configure the number of bits occupied by the first bit interval in the terminal.
需要说明的是，在上述子带宽度和上述第一比特区间的比特数目配置给终端之后，还包括：将上行资源调度所调度的资源配置给终端，以便终端确定上行资源调度占用的子带数目。It should be noted that after the foregoing subband width and the number of bits in the first bit interval are configured to the terminal, the method further includes: configuring, by the uplink resource scheduling, the scheduled resource to the terminal, so that the terminal determines the number of subbands occupied by the uplink resource scheduling. .
例如，基于上述子带宽度和上述第一比特区间的比特数目的配置信息，在某一时隙，基站发送物理控制信息，调度终端进行上行多天线传输。UE接收基站的调度信令，确定基站的所调度的PRB的起始位置和PRB数目。For example, based on the configuration information of the subband width and the number of bits of the first bit interval, the base station transmits physical control information in a certain slot, and the scheduling terminal performs uplink multi-antenna transmission. The UE receives the scheduling signaling of the base station, and determines the starting position and the number of PRBs of the scheduled PRB of the base station.
基于基站配置给终端进行上行多天线传输的上行资源调度的频域宽度，上述步骤之前，还包括：终端确定上行资源调度占用的子带数。The frequency domain width of the uplink resource scheduling for the uplink multi-antenna transmission by the base station is configured by the base station, and the step further includes: determining, by the terminal, the number of sub-bands occupied by the uplink resource scheduling.
可选的，当上行资源调度为频域的连续资源调度时，所述上行资源调度所占用的子带数目为调度的所有PRB所占据的子带数目。Optionally, when the uplink resource scheduling is the continuous resource scheduling in the frequency domain, the number of subbands occupied by the uplink resource scheduling is the number of subbands occupied by all the scheduled PRBs.
可选的，当所述上行资源调度为频域的非连续资源调度时，所述上行资源调度所占用的子带数目为被调度的物理资源块所占据的子带数目。Optionally, when the uplink resource scheduling is a discontinuous resource scheduling in a frequency domain, the number of subbands occupied by the uplink resource scheduling is the number of subbands occupied by the scheduled physical resource block.
针对非连续资源调度的情况，如图3所示，假如配置的子带宽度为4，被调度的物理资源块为非连续的11个PRB，上行资源调度所占用的子带数目为被调度的这11个PRB所占据的子带数目。其中，在计算这11个PRB所占据的子带数目时有两种可选方式：For the case of non-contiguous resource scheduling, as shown in FIG. 3, if the configured subband width is 4, the scheduled physical resource block is non-contiguous 11 PRBs, and the number of subbands occupied by the uplink resource scheduling is scheduled. The number of subbands occupied by these 11 PRBs. Among them, there are two options for calculating the number of subbands occupied by these 11 PRBs:
方式一：如图3中的(1)所示，根据子带带宽和实际被调度的11个PRB，确定子带和实际被调度的11个PRB所占据的子带数目。计算原则是：每4个PRB为一个子带，并且每个子带的第一个PRB一定是被调度的PRB，而且只有包括实际被调度的PRB的子带才会被计入上行资源调度所占用的子带数目。Manner 1: As shown in (1) of FIG. 3, the number of subbands occupied by the subband and the 11 scheduled PRBs are determined according to the subband bandwidth and the 11 scheduled PRBs actually scheduled. The calculation principle is: every 4 PRBs are one subband, and the first PRB of each subband must be the scheduled PRB, and only the subband including the actually scheduled PRB will be counted as occupied by the uplink resource scheduling. The number of sub-bands.
方式二：如图3中的(2)所示，根据***预先确定的子带带宽的粒度来确定子带。计算原则是：每4个PRB为一个子带，每个子带的第一个PRB不需要一定是被调度的PRB，但是只有包括实际被调度的PRB的子带才会被计入上行资源调度所占用的子带数目。Manner 2: As shown in (2) of FIG. 3, the subband is determined according to the granularity of the subband bandwidth predetermined by the system. The calculation principle is: every 4 PRBs are one subband, and the first PRB of each subband does not need to be a scheduled PRB, but only the subband including the actually scheduled PRB will be counted in the uplink resource scheduling office. The number of subbands occupied.
需要说明的是，上述步骤201中，下行控制信息是指用于上行调度的DCI，第一比特区间在DCI中占据的比特数目固定，第一比特区间中用于指示一个子带组的TPMI的指示比特，能够统一为两比特或1比特。It should be noted that, in the foregoing step 201, the downlink control information refers to the DCI used for uplink scheduling, and the number of bits occupied by the first bit interval in the DCI is fixed, and the TPMI for indicating a subband group in the first bit interval is used. The indication bits can be unified into two bits or one bit.
上述步骤203中，终端可以根据DCI的比特位图来获取第一比特区间，终端可以通过查找子带组与指示比特之间的映射关系表，获取第一比特区间所指示的子带组的TPMI，每个子带组的TPMI指示一个预编码矩阵子集的具体配置。In the foregoing step 203, the terminal may obtain the first bit interval according to the bit bitmap of the DCI, and the terminal may obtain the TPMI of the sub-band group indicated by the first bit interval by searching the mapping relationship table between the sub-band group and the indication bit. The TPMI of each subband group indicates the specific configuration of a precoding matrix subset.
步骤203中，所述终端根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵，包括：所述终端确定每一所述子带组，以及每一子带组中的子带；所述终端按照从所述预编码矩阵子集中选择预编码矩阵的方式，从任一所述子带对应的子带组的所述预编码矩阵子集中，选择出在所述子带上进行上行数据传输的预编码矩阵。In step 203, the terminal determines, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling, where: the terminal determines each of the subbands. a group, and a subband in each subband group; the terminal, according to a method of selecting a precoding matrix from the precoding matrix subset, from the precoding matrix of a subband group corresponding to any one of the subbands In the subset, a precoding matrix for uplink data transmission on the subband is selected.
可选的，所述终端确定每一所述子带组，以及每一子带组中的子带，主要包括：终端确定子带组的数目，子带组中的子带数目，以及子带组与子带的分配关系。Optionally, the terminal determines each of the subband groups, and the subbands in each subband group, and the method mainly includes: determining, by the terminal, the number of subband groups, the number of subbands in the subband group, and the subband The assignment relationship between groups and subbands.
需要说明的是，本申请中的子带组是指上行资源调度占用的子带组，子带组中的子带是上行资源调度占用的子带，子带组中的子带是从上行资源调度占用的n个子带中的子带，通常从上行资源调度占用的n个子带中的第一个子带开始，按顺序划分每个子带组中的子带。It should be noted that the subband group in the present application refers to the subband group occupied by the uplink resource scheduling, the subband in the subband group is the subband occupied by the uplink resource scheduling, and the subband in the subband group is the uplink resource. The subbands in the n subbands occupied by the scheduling are generally started from the first subband of the n subbands occupied by the uplink resource scheduling, and the subbands in each subband group are sequentially divided.
需要说明的是，子带组的数目以及子带组中的子带数目都是可调的，都需要兼顾上行资源调度所占用的子带数目n和发送预编码矩阵序号占用的比特位数。It should be noted that the number of subband groups and the number of subbands in the subband group are all adjustable, and both need to take into account the number of subbands occupied by the uplink resource scheduling and the number of bits occupied by the sequence of the precoding matrix.
可选的，一个发送预编码矩阵序号占用的比特位数有两种配置，具体是哪一种配置可以通过标准定义配置在终端中，也可以通过基站配置给终端。其中一种是：发送预编码矩阵序号占用所述第一比特区间的两个连续比特，另外一种是：发送预编码矩阵序号占用所述第一比特区间的1个比特。Optionally, there is two configurations for the number of bits occupied by the serial number of the precoding matrix. The specific configuration may be configured in the terminal by using a standard definition, or may be configured to the terminal through the base station. One of them is: the transmission precoding matrix sequence number occupies two consecutive bits of the first bit interval, and the other is: the transmission precoding matrix sequence number occupies 1 bit of the first bit interval.
基于配置给终端的上述第一比特区间的比特数目，终端确定的上行资源调度所占用的子带，以及上行资源调度所占用的子带数目，以及每一个所述子带组的发送预编码矩阵序号占用的比特位数和第一比特区间是否有冗余比特的上述配置，可以通过以下方式确定子带组中的子带数目，这些确定方式可以通过标准进行定义配置在终端和基站中。Based on the number of bits of the first bit interval configured to the terminal, the subband occupied by the uplink resource scheduling determined by the terminal, and the number of subbands occupied by the uplink resource scheduling, and the transmission precoding matrix of each of the subband groups For the above configuration of the number of bits occupied by the sequence number and whether there is a redundant bit in the first bit interval, the number of subbands in the subband group can be determined in the following manner. These determination manners can be configured in the terminal and the base station by standard definition.
下面以上行资源调度为频域的连续PRB调度为例，说明子带组中的子带数目的确定方式示例，为了便于说明，记DCI中第一比特区间的比特个数为2N，子带的宽度为K，上行资源调度所占用的子带数目为n，基站调度的连续PRB个数为X(即上行资源调度所调度的连续PRB个数)，子带组中的子带数目为Y。The following example shows that the foregoing resource scheduling is a continuous PRB scheduling in the frequency domain, and an example of determining the number of subbands in the subband group is illustrated. For convenience of description, the number of bits in the first bit interval in the DCI is 2N, and the subband is The width is K, the number of subbands occupied by the uplink resource scheduling is n, the number of consecutive PRBs scheduled by the base station is X (ie, the number of consecutive PRBs scheduled by the uplink resource scheduling), and the number of subbands in the subband group is Y.
在第一种可能的设计中，子带组中的子带数目通过以下方式确定：In the first possible design, the number of subbands in the subband group is determined by:
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比 特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and each of the remaining The number of subbands in the subband group is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
示例性的，如图4，配置N＝3，K＝4。当X＝10时，基站调度的所有PRB刚好占据了n＝N＝3个子带。此时，每个子带组包括Y＝1个子带。基站通过DCI中第一比特区间的每2比特指示每个子带组的TPMI，每个子带组的TPMI对应一个确定的预编码矩阵，该预编码矩阵为在该子带组中的子带上进行上行数据传输的一个预编码矩阵。Illustratively, as in Figure 4, configuration N = 3, K = 4. When X=10, all PRBs scheduled by the base station occupy exactly n=N=3 subbands. At this time, each subband group includes Y=1 subbands. The base station indicates the TPMI of each subband group by every 2 bits of the first bit interval in the DCI, and the TPMI of each subband group corresponds to a certain precoding matrix, and the precoding matrix is performed on the subbands in the subband group. A precoding matrix for uplink data transmission.
示例性的，如图5，配置配置N＝3，K＝4。当X＝21时，基站调度的所有PRB刚好占据了n＝2N＝6个子带，即p＝1。此时，每个子带组包括Y＝1个子带。基站通过DCI中第一比特区间中的每1比特指示每个子带组的TPMI，任意一个子带组的TPMI对应一个预编码矩阵子集，终端可以选择预编码矩阵子集中的任意一个预编码矩阵进行上行数据的收发。对于任意一个子带，终端从子带所在的子带组的预编码矩阵子集中，为该子带选择一个预编码矩阵进行上行数据传输。。Illustratively, as shown in FIG. 5, the configuration configuration N=3, K=4. When X=21, all PRBs scheduled by the base station occupy exactly n=2N=6 sub-bands, that is, p=1. At this time, each subband group includes Y=1 subbands. The base station indicates the TPMI of each subband group by using every bit in the first bit interval in the DCI, and the TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset. Send and receive uplink data. For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission. .
示例性的，如图6，N＝3，K＝4，当X＝43时，基站调度的所有PRB刚好占据了n＝4N＝12个子带，即p＝2。此时，每个子带组包括Y＝2个子带。基站通过DCI中第一比特区间的每1比特指示每个子带组的TPMI。任意一个子带组的TPMI对应一个预编码矩阵子集，终端可以选择预编码矩阵子集中的任意一个预编码矩阵进行上行数据的收发。对于任意一个子带，终端从子带所在的子带组的预编码矩阵子集中，为该子带选择一个预编码矩阵进行上行数据传输。Exemplarily, as shown in FIG. 6, N=3, K=4. When X=43, all PRBs scheduled by the base station occupy exactly n=4N=12 sub-bands, that is, p=2. At this time, each subband group includes Y=2 subbands. The base station indicates the TPMI of each subband group by every 1 bit of the first bit interval in the DCI. The TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception. For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
在第二种可能的设计中，子带组中的子带数目通过以下方式确定：In the second possible design, the number of subbands in the subband group is determined by:
当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval.
当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is less than or equal to 2*p, and each of the remaining The number of subbands in the subband group is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. Continuous bits.
示例性的，如图7，配置N＝4，K＝6。当X＝21时，基站调度的所有PRB刚好占据了n＝N＝4个子带。此时，每个子带组包括Y＝1个子带。基站通过DCI中第一比特区间的每2比特指示每个子带组的TPMI，每个子带组的TPMI对应一个确定的预编码矩阵，该预编码矩阵为在该子带组中的子带上进行上行数据传输的一个预编码矩阵。Illustratively, as shown in Figure 7, configuration N = 4, K = 6. When X=21, all PRBs scheduled by the base station occupy exactly n=N=4 sub-bands. At this time, each subband group includes Y=1 subbands. The base station indicates the TPMI of each subband group by every 2 bits of the first bit interval in the DCI, and the TPMI of each subband group corresponds to a certain precoding matrix, and the precoding matrix is performed on the subbands in the subband group. A precoding matrix for uplink data transmission.
示例性的，如图8，配置N＝4，K＝6。当X＝44时，基站调度的所有PRB刚好占据了n＝2N＝8个子带，即p＝1。此时，每个子带组包括Y＝2个子带。基站通过调度信令中的每2比特指示每个子带组的TPMI。其中，任意一个子带组的TPMI对应一个预编码矩阵子集，终端可以选择预编码矩阵子集中的任意一个预编码矩阵进行上行数据的收发。对于任意一个子带，终端从子带所在的子带组的预编码矩阵子集中，为该子带选择一个预编码矩阵进行上行数据传输。Illustratively, as shown in Figure 8, configuration N = 4, K = 6. When X=44, all PRBs scheduled by the base station occupy exactly n=2N=8 subbands, that is, p=1. At this time, each subband group includes Y=2 subbands. The base station indicates the TPMI of each subband group by every 2 bits in the scheduling signaling. The TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception. For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
示例性的，如图9，配置N＝4，K＝6，当X＝82时，基站调度的所有PRB刚好占据了n＝4N＝16个子带，即p＝2。此时，每个子带组包括Y＝4个子带。基站通过调度信令中的每2比特指示每个子带组的TPMI。其中，任意一个子带组的TPMI对应一个预编码矩阵子 集，终端可以选择预编码矩阵子集中的任意一个预编码矩阵进行上行数据的收发。对于任意一个子带，终端从子带所在的子带组的预编码矩阵子集中，为该子带选择一个预编码矩阵进行上行数据传输。Exemplarily, as shown in FIG. 9, configuration N=4, K=6, when X=82, all PRBs scheduled by the base station occupy exactly n=4N=16 sub-bands, that is, p=2. At this time, each subband group includes Y=4 subbands. The base station indicates the TPMI of each subband group by every 2 bits in the scheduling signaling. The TPMI of any subband group corresponds to a precoding matrix subset, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception. For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
需要说明的是，对于上述第一种可能的设计中，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，会出现2N个比特没有全用的情况，2N个比特中没有用于指示子带组的TpMI用于的比特为冗余比特，并且冗余比特的个数至少为1个。对于上述第二种可能的设计中，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，会出现2N个比特没有全用的情况，2N个比特中没有用于指示子带组的TPMI用于的比特为冗余比特，并且冗余比特的个数至少为1个。It should be noted that, in the foregoing first possible design, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), 2N bits are not present. In the case of full use, the bits for which the TpMI for the subband group is not used for the 2N bits are redundant bits, and the number of redundant bits is at least one. For the second possible design, when the number of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), 2N bits are not present. In the case of use, the bits for which the TPMI for the subband group is not used for the 2N bits are redundant bits, and the number of redundant bits is at least one.
本申请还提供了对2N个比特中包括的冗余比特进行处理的方式：The application also provides a way to process redundant bits included in 2N bits:
方式一，所述冗余比特被填充为0或其它无效值。In the first mode, the redundant bits are padded with 0 or other invalid values.
方式二，为了更好的使用这些冗余比特，将这些冗余比特进行重新解释，来传递子带组的TpMI的其他相关信息，例如，将这些所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。可以指示一个子带组内相邻两个子带的预编码矩阵是否必须不一致，也可以指示某一频域区间内相邻两个子带的预编码矩阵是否必须不一致。In the second way, in order to better use these redundant bits, these redundant bits are reinterpreted to transmit other related information of the TpMI of the subband group, for example, these redundant bits are used to indicate adjacent subbands. Whether the precoding matrix on the top must be inconsistent. It may be indicated whether the precoding matrices of two adjacent subbands in one subband group must be inconsistent, or may indicate whether precoding matrices of adjacent two subbands in a frequency domain interval must be inconsistent.
对2N个比特中包括的冗余比特进行处理的具体方式是哪一种，可以是标准定义的，基站和终端基于标准定义进行预配置；也可以是基站通过RRC信令配置给终端。The specific manner of processing the redundant bits included in the 2N bits may be standard definition, and the base station and the terminal are pre-configured based on the standard definition; or the base station may be configured to the terminal through RRC signaling.
对于上述第一种可能的设计中，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，会出现2N个比特没有全用的情况，本申请提供的对2N个比特中包括的冗余比特进行处理的方式的示例如下：In the above first possible design, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), 2N bits may not be fully used. An example of a manner of processing redundant bits included in 2N bits provided by the present application is as follows:
示例性的，如图10所示，当2N＝6时，且基站调度的所有PRB占用的子带数目n为4时，(p＝1)，共有4个子带组，每个子带组包括1个子带，每1个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为4比特，冗余比特为2比特。因此，在使用冗余比特时，对于子带组1和2，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致；对于子带组3和4，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 10, when 2N=6, and the number of subbands occupied by all PRBs scheduled by the base station is n, (p=1), there are 4 subband groups, and each subband group includes 1 Sub-bands, each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 4 bits, and the redundancy bits are 2 bits. Therefore, when using redundant bits, for subband groups 1 and 2, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 3 and 4, adding 1 bit Indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
示例性的，如图11，当2N＝6时，且基站调度的所有PRB占用的子带数目n为5时，(p＝1)，共有5个子带组，每个子带组包括1个子带，每1个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为5比特，冗余比特为1比特。因此，在使用冗余比特时，对于子带组1至5，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 11, when 2N=6, and the number of subbands occupied by all PRBs scheduled by the base station is n, (p=1), there are 5 subband groups, and each subband group includes 1 subband. Each bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 5 bits, and the redundancy bits are 1 bit. Therefore, when redundant bits are used, for subband groups 1 to 5, an increase of 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
示例性的，如图12所示，当2N＝8时，且基站调度的所有PRB占用的子带数目n为5时，(p＝1)，共有5个子带组，每个子带组包括1个子带，每1个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为5比特，冗余比特为3比特。因此，在使用这3个冗余比特时，对于子带组1至3，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致；对于子带组2至4，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致；对于子带组3至5，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 12, when 2N=8, and the number of subbands occupied by all PRBs scheduled by the base station is n, (p=1), there are 5 subband groups, and each subband group includes 1 Sub-bands, each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 5 bits, and the redundancy bits are 3 bits. Therefore, when using these 3 redundant bits, for subband groups 1 to 3, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 2 to 4, Adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 3 to 5, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range are necessary. Inconsistent.
示例性的，如图13示，当2N＝8时，且基站调度的所有PRB占用的子带数目n为6时，(p＝1)，共有6个子带组，每个子带组包括1个子带，每1个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为6比特，冗余比特为2比特。因此，在使用这2个冗余比特时，对于子带组1至3，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致；对于子带组4至6，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 13, when 2N=8, and the number of subbands occupied by all PRBs scheduled by the base station is n, (p=1), there are 6 subband groups, and each subband group includes 1 sub. Band, every 1 bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 6 bits, and the redundancy bits are 2 bits. Therefore, when using these two redundant bits, for subband groups 1 to 3, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent; for subband groups 4 to 6, Adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
示例性的，如图14所示，当2N＝8时，且基站调度的所有PRB占用的子带数目n为7时，(p＝1)，共有7个子带组，每个子带组包括1个子带，每1个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为7比特，冗余比特为1比特。因此，在使用这1个冗余比特时，对于子带组1至7，增加1比特指示这一范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 14, when 2N=8, and the number of subbands occupied by all PRBs scheduled by the base station is n, (p=1), there are 7 subband groups, and each subband group includes 1 Sub-bands, each bit indicates the TPMI of a sub-band group. Therefore, the bits of the TPMI indicating the subband group are 7 bits, and the redundancy bits are 1 bit. Therefore, when using the 1 redundant bit, for subband groups 1 to 7, adding 1 bit indicates whether the precoding matrices of two adjacent subbands in this range must be inconsistent.
对于上述第二种可能的设计中，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，会出现2N个比特没有全用的情况，本申请提供的对2N个比特中包括的冗余比特进行处理的方式的示例如下：For the second possible design, when the number of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), 2N bits are not present. In the case of use, examples of the manner in which the redundant bits included in 2N bits are processed by the present application are as follows:
示例性的，如图15所示，当2N＝6时，且基站调度的所有PRB占用的子带数目n为4时，共有两个子带组，每个子带组包括2个子带，每两个比特指示一个子带组的TPMI，因此，指示子带组的TPMI的比特为4比特，冗余比特为2比特。此时，对于每个子带组，分别使用1个冗余比特指示该子带组内两个相邻子带的预编码矩阵是否必须不一致，即每个子带组用3个比特来指示子带组的TPMI的相关信息，其中两个比特指示子带组的TPMI(预编码矩阵子集)，另一比特指示子带组中内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 15, when 2N=6, and the number of subbands occupied by all PRBs scheduled by the base station is n, there are two subband groups, and each subband group includes two subbands, two each. The bit indicates the TPMI of one subband group, and therefore, the bit indicating the TPMI of the subband group is 4 bits, and the redundancy bit is 2 bits. At this time, for each subband group, one redundant bit is used to indicate whether the precoding matrices of two adjacent subbands in the subband group must be inconsistent, that is, each subband group indicates the subband group by 3 bits. TPMI related information, where two bits indicate the TPMI (precoding matrix subset) of the subband group, and the other bit indicates whether the precoding matrices of two adjacent subbands in the subband group must be inconsistent.
示例性的，如图16所示，当2N＝8时，且基站调度的所有PRB占用的子带数目n为6时，共有3个子带组，每个子带组包括2个子带，每两个比特指示一个子带组的TPMI。因此，指示子带组的TPMI的比特为6比特，冗余比特为2比特。因此，在使用冗余比特时，对于子带组1和2，可以增加1比特指示前两个子带组的子带范围内的两个相邻子带的预编码矩阵是否必须不一致，对于后子带组3和4，增加1比特指示后两个子带组的子带范围内两个相邻子带的预编码矩阵是否必须不一致。Exemplarily, as shown in FIG. 16, when 2N=8, and the number of subbands occupied by all PRBs scheduled by the base station is n, there are 3 subband groups, and each subband group includes 2 subbands, and each of the two subbands. The bit indicates the TPMI of a subband group. Therefore, the bits of the TPMI indicating the subband group are 6 bits, and the redundancy bits are 2 bits. Therefore, when using redundant bits, for subband groups 1 and 2, one bit can be added to indicate whether the precoding matrices of two adjacent subbands within the subband range of the first two subband groups must be inconsistent, for the latter. With groups 3 and 4, adding 1 bit indicates whether the precoding matrices of two adjacent subbands within the subband range of the latter two subband groups must be inconsistent.
需要说明的是，对于n<N的情形，也可能会有冗余比特，但是此种情况由于每个子带组中只包括一个子带，因此，子带组的TPMI所指示的是一个确定的预编码矩阵，没有需求使用冗余比特来指示相邻子带上的预编码矩阵是否必须不一致，通常会填充为0。It should be noted that for the case of n<N, there may be redundant bits, but in this case, since only one subband is included in each subband group, the TPMI of the subband group indicates a certain Precoding matrices, there is no need to use redundant bits to indicate whether the precoding matrices on adjacent subbands must be inconsistent, usually filled with zeros.
例如，当上行资源调度X＝5，且配置K＝3，N＝3时，所述资源调度仅仅占用了2个子带，最后一个子带对应的2个比特为冗余比特，被填充为00。For example, when the uplink resource scheduling X=5, and the configuration K=3, N=3, the resource scheduling only occupies 2 subbands, and the 2 bits corresponding to the last subband are redundant bits, and are filled with 00. .
又例如，当上行资源调度X＝4，且配置K＝6，N＝4时，所述资源调度仅仅占用了1个子带，除了第一个子带对应的比特区域用于指示预编码矩阵外，剩余的所有三个子带对应的6个比特为冗余比特，全部被填充为0。For another example, when the uplink resource scheduling X=4, and the configuration K=6, N=4, the resource scheduling only occupies 1 subband, except that the bit region corresponding to the first subband is used to indicate the precoding matrix. The remaining 6 bits of all the remaining three sub-bands are redundant bits, all of which are padded with 0.
需要注意的是，本发明主要针对上行资源调度所占用的子带数目n较多的场景。对应n<N的场景，可能在较少的若干个上行调度时间单位中短暂出现。如果n<N的调度经常出现，按照基站调度器逻辑，应在RRC配置中配置成宽带TPMI指示。It should be noted that the present invention is mainly directed to a scenario in which the number of subbands occupied by uplink resource scheduling is large. A scenario corresponding to n<N may appear briefly in a few fewer uplink scheduling time units. If the scheduling of n<N occurs frequently, it should be configured as a wideband TPMI indication in the RRC configuration according to the base station scheduler logic.
在第三种可能的设计中，子带组中的子带数目通过以下方式确定：In a third possible design, the number of subbands in a subband group is determined by:
与上述两种设计的区别在于：上述两种设计中，每个子带组中子带数目相等。除了一个子带组中的子带数目比较特殊之外，其余子带组中的子带数目都相等。第三种设计中，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，p＝2 k，k≥0，所述子带组的数目恒定为N，子带组中的子带数目可以不同，目的在于避免2N个比特中有冗余比特存在。 The difference from the above two designs is that in the above two designs, the number of sub-bands in each sub-band group is equal. The number of subbands in the remaining subband groups is equal except that the number of subbands in a subband group is special. In the third design, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, p=2 k , k≥0, and the number of the subband groups is constant. For N, the number of subbands in the subband group can be different, in order to avoid the presence of redundant bits in 2N bits.
当n≤N时，每一个所述子带组中的子带数目为1个，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When n ≤ N, the number of subbands in each of the subband groups is one, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval;
当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，p＝2 k，k≥0，每个所述子带组中的子带数目通过以下方式确定：N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。可选的，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, p=2 k , k≥0, and the number of subbands in each of the subband groups passes the following The mode determines that the number of sub-bands included in the N sub-band groups is any two or three of p, 2*p, and (p+1+(n-1) mod p). Optionally, the number of subbands included in each of the subband groups is determined by: after allocating p subbands for each of the N subband groups, n-pN remaining in the n subbands The bands are allocated p sub-bands for each sub-band group in descending order of sub-band group numbers from small to large or large to small, until the n-pN sub-bands are allocated.
基于这样的判断方法，可以基于调度所占用的子带数目n的多少，依照固定次序将各个子带组的大小从p个子带增长到2*p个子带，直到n-pN个子带都被用完为止，子带组中的子带数目最大为2*p，最小为p。所述固定次序，可以是按照子带组编号从小到大的次序，也可以是按照子带组编号从大到小的次序，本发明不做限定。Based on such a judging method, the size of each sub-band group can be increased from p sub-bands to 2*p sub-bands in a fixed order based on the number n of sub-bands occupied by the scheduling until n-pN sub-bands are used. At the end, the number of subbands in the subband group is at most 2*p and the minimum is p. The fixed order may be in the order of the sub-band group numbers from small to large, or may be in the order of the sub-band group numbers from large to small, and the invention is not limited.
特别的，当p＝1时，子带组中满足Y i＝p的，其对应比特域(子带，组的TPMI的指示比特)指示一个确定的预编码矩阵。当p>1时，所述比特域指示一个预编码矩阵的子集，终端可以选择预编码矩阵子集中的任意一个预编码矩阵进行上行数据的收发。对于任意一个子带，终端从子带所在的子带组的预编码矩阵子集中，为该子带选择一个预编码矩阵进行上行数据传输。 In particular, when p=1, Y i =p is satisfied in the subband group, and its corresponding bit field (subband, indicator bit of the TPMI of the group) indicates a certain precoding matrix. When p>1, the bit field indicates a subset of a precoding matrix, and the terminal may select any precoding matrix in the precoding matrix subset to perform uplink data transmission and reception. For any subband, the terminal selects a precoding matrix for the subband from the precoding matrix subset of the subband group in which the subband is located for uplink data transmission.
为了便于说明，Y i为第i个子带组包括的子带数目，i为子带组的序号，i＝1,2,…,N，配置每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特，则Y i＝p或2*p，或Y i介于p和2*p之间。 For convenience of explanation, Y i is the number of subbands included in the i-th sub-band group, i is the sequence number of the sub-band group, i=1, 2, . . . , N, and the transmission precoding matrix number of each of the sub-band groups is configured. Occupying two consecutive bits of the first bit interval, Y i =p or 2*p, or Y i is between p and 2*p.
具体而言，对于第i个子带组，Yi根据如下关系式中对n的判断来确定：Specifically, for the i-th sub-band group, Yi is determined according to the judgment of n in the following relation:
Figure PCTCN2018105638-appb-000023
Figure PCTCN2018105638-appb-000023
上述关系式的含义如图17所示，子带组共有N个，对于子带组1至子带组
Figure PCTCN2018105638-appb-000024
每个子带组中都包括2*p个子带，对于子带组
Figure PCTCN2018105638-appb-000025
子带组中包括(p+1+(n-1)mod p)个子带，对于子带组
Figure PCTCN2018105638-appb-000026
至子带组N，每个子带组中都包括p个子带。 The meaning of the above relationship is shown in Figure 17, there are N subband groups, for subband group 1 to subband group
Figure PCTCN2018105638-appb-000024
2*p subbands are included in each subband group for subband groups
Figure PCTCN2018105638-appb-000025
Subband groups include (p+1+(n-1) mod p) subbands for subband groups
Figure PCTCN2018105638-appb-000026
To subband group N, each subband group includes p subbands.
对于于上述关系式的使用，有如下几种情况：For the use of the above relationship, there are several cases:
(1)若
Figure PCTCN2018105638-appb-000027
且
Figure PCTCN2018105638-appb-000028
通过以下方式确定子带组中的子带数目： (1) If
Figure PCTCN2018105638-appb-000027
And
Figure PCTCN2018105638-appb-000028
Determine the number of subbands in a subband group by:
可选的，当子带组的序号小于
Figure PCTCN2018105638-appb-000029
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000030
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000031
时，该子带组中的子带数目为p个。 Optionally, when the subband group number is less than
Figure PCTCN2018105638-appb-000029
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000030
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000031
The number of subbands in the subband group is p.
示例性的，当上行资源调度X＝54，N＝3，K＝6时，计算可得n＝9，故p＝2，此时，
Figure PCTCN2018105638-appb-000032
即，对于i＝1，满足i<2，此时i＝1的子带组包括2*p＝4个子带，对于i＝2，子带组包括2+1+(9-1)mod2＝3个子带，对于i＝3满足i>2的子带组包括2个子带。由于子带组中的子带数目都大于1，故基站指示的TPMI序号，在每个子带组上，都指示某个预编码矩阵的子集。 Exemplarily, when the uplink resource scheduling X=54, N=3, K=6, the calculation can obtain n=9, so p=2, at this time,
Figure PCTCN2018105638-appb-000032
That is, for i=1, i<2 is satisfied, and the subband group with i=1 at this time includes 2*p=4 subbands, and for i=2, the subband group includes 2+1+(9-1) mod2= The three sub-bands include two sub-bands for the sub-band group satisfying i>2 for i=3. Since the number of subbands in the subband group is greater than 1, the TPMI sequence number indicated by the base station indicates a subset of a precoding matrix on each subband group.
(2)特殊情形下，若
Figure PCTCN2018105638-appb-000033
则通过以下方式确定子带组中的子带数目： (2) Under special circumstances, if
Figure PCTCN2018105638-appb-000033
Then determine the number of subbands in the subband group by:
当子带组的序号等于
Figure PCTCN2018105638-appb-000034
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000035
时，该子带组中的子带数目为p个。 When the number of the subband group is equal to
Figure PCTCN2018105638-appb-000034
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000035
The number of subbands in the subband group is p.
例如，当上行资源调度X＝18，N＝4，K＝4时，计算可得n＝5，故p＝1，此时，
Figure PCTCN2018105638-appb-000036
即，满足
Figure PCTCN2018105638-appb-000037
的i不存在，第i＝1个子带组的大小(子带组中的子带数目)为p+1+(5-1)mod1＝2，其余序号为i>1的子带组，依旧是每个子带组包括1个子带。基站指示的TPMI序号，在第1个子带组表示某个预编码矩阵的子集，而在i>1的多个子带组表示某个确定的预编码矩阵。 For example, when the uplink resource scheduling X=18, N=4, and K=4, the calculation can obtain n=5, so p=1, at this time,
Figure PCTCN2018105638-appb-000036
That is, satisfy
Figure PCTCN2018105638-appb-000037
i does not exist, the size of the i-th sub-band group (the number of sub-bands in the sub-band group) is p+1+(5-1) mod1=2, and the remaining sub-band groups with the sequence number i>1 are still It is that each subband group includes 1 subband. The TPMI sequence number indicated by the base station indicates a subset of a certain precoding matrix in the first subband group, and a plurality of subband groups in i>1 represent a certain precoding matrix.
(3)特殊情形下，若
Figure PCTCN2018105638-appb-000038
则通过以下方式确定子带组中的子带数目： (3) Under special circumstances, if
Figure PCTCN2018105638-appb-000038
Then determine the number of subbands in the subband group by:
当子带组的序号小于
Figure PCTCN2018105638-appb-000039
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000040
时，该子带组中的子带数目为(p+1+(n-1)mod p)个。 When the subband group number is less than
Figure PCTCN2018105638-appb-000039
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000040
The number of subbands in the subband group is (p+1+(n-1) mod p).
又例如，当上行资源调度X＝58，N＝4，K＝4时，计算可得n＝15，故p＝2，此时，
Figure PCTCN2018105638-appb-000041
即，对于满足i<4的所有子带组，每个子带组包括2*p＝4个子带，对于i＝4，子带组包括2+1+(15-1)mod2＝3个子带，由于只有4个子带组，满足i>4的子带组不存在。由于子带组中的子带数目都大于1，故基站指示的TPMI序号，在每个子带组上，都指示某个预编码矩阵的子集。 For another example, when the uplink resource scheduling X=58, N=4, and K=4, the calculation can obtain n=15, so p=2, at this time,
Figure PCTCN2018105638-appb-000041
That is, for all subband groups satisfying i<4, each subband group includes 2*p=4 subbands, and for i=4, the subband group includes 2+1+(15-1) mod2=3 subbands, Since there are only 4 subband groups, the subband group satisfying i>4 does not exist. Since the number of subbands in the subband group is greater than 1, the TPMI sequence number indicated by the base station indicates a subset of a precoding matrix on each subband group.
另一种可能的设计中，也可以按照子带组的序号从大到小的顺序来按照相似的方法确定子带组中的子带。具体而言，上述关系式也可变形为：In another possible design, the sub-bands in the sub-band group can also be determined in a similar manner according to the order of the sub-band groups. Specifically, the above relationship can also be transformed into:
Figure PCTCN2018105638-appb-000042
Figure PCTCN2018105638-appb-000042
对于于上述变形后的关系式的使用，有如下几种情况：For the use of the above-described transformed relationship, there are several cases:
(1)若
Figure PCTCN2018105638-appb-000043
且
Figure PCTCN2018105638-appb-000044
通过以下方式确定子带组中的子带数目： (1) If
Figure PCTCN2018105638-appb-000043
And
Figure PCTCN2018105638-appb-000044
Determine the number of subbands in a subband group by:
当子带组的序号大于
Figure PCTCN2018105638-appb-000045
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000046
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号小于
Figure PCTCN2018105638-appb-000047
时，该子带组中的子带数目为p个。 When the subband group number is greater than
Figure PCTCN2018105638-appb-000045
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000046
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is less than
Figure PCTCN2018105638-appb-000047
The number of subbands in the subband group is p.
(2)特殊情形下，若
Figure PCTCN2018105638-appb-000048
则通过以下方式确定子带组中的子带数目：当子带组的序号等于
Figure PCTCN2018105638-appb-000049
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000050
时，该子带组中的子带数目为2*p个。 (2) Under special circumstances, if
Figure PCTCN2018105638-appb-000048
Then determine the number of subbands in the subband group by: when the subband group number is equal to
Figure PCTCN2018105638-appb-000049
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000050
The number of subbands in the subband group is 2*p.
(3)特殊情形下，若
Figure PCTCN2018105638-appb-000051
则通过以下方式确定子带组中的子带数目： (3) Under special circumstances, if
Figure PCTCN2018105638-appb-000051
Then determine the number of subbands in the subband group by:
当子带组的序号小于
Figure PCTCN2018105638-appb-000052
时，该子带组中的子带数目为p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000053
时，该子带组中的子带数目为(p+1+(n-1)mod p)个。 When the subband group number is less than
Figure PCTCN2018105638-appb-000052
The number of subbands in the subband group is p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000053
The number of subbands in the subband group is (p+1+(n-1) mod p).
步骤203中，还包括：终端按照从所述预编码矩阵子集中选择预编码矩阵的方式，从任一所述子带对应的子带组的所述预编码矩阵子集中，选择出在所述子带上进行上行数据传输的预编码矩阵。In step 203, the method further includes: selecting, by the terminal, the precoding matrix from the subset of precoding matrices, selecting, in the precoding matrix subset of the subband group corresponding to any one of the subbands, A precoding matrix for uplink data transmission on the subband.
需要说明的是，如果当所述上行资源调度所占用的子带数目n≤N时，每一个子带组中的子带数目为1个，则子带组的预编码矩阵子集包括一个确定的预编码矩阵。如果当所述上行资源调度所占用的子带数目n>N时，每一个子带组中的子带数目为1个或多个，子带组的预编码矩阵子集中包括至少两个预编码矩阵，从这两个预编码矩阵中随机选择一个，作为在对应子带上进行上行数据传输的预编码矩阵，或者按照循环的方式从这两个预编码矩阵中选择一个，作为在对应子带上进行上行数据传输的预编码矩阵。或者，可选的， 根据冗余比特指示的信息，如，相邻子带的预编码矩阵是否必须不一致的信息，从这两个预编码矩阵中选择一个预编码矩阵。It should be noted that, if the number of subbands in each subband group is one when the number of subbands occupied by the uplink resource scheduling is n≤N, the precoding matrix subset of the subband group includes a determination. Precoding matrix. If the number of subbands in each subband group is one or more when the number of subbands occupied by the uplink resource scheduling is n>N, the precoding matrix subset of the subband group includes at least two precodings. a matrix, randomly selecting one of the two precoding matrices as a precoding matrix for performing uplink data transmission on the corresponding subband, or selecting one of the two precoding matrices in a cyclic manner as the corresponding subband A precoding matrix for uplink data transmission. Alternatively, optionally, a precoding matrix is selected from the two precoding matrices according to information indicated by the redundant bits, such as whether the precoding matrix of the adjacent subbands must be inconsistent.
可选的，所述子带组的TPMI指示的预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式被配置在所述终端中，或者通过所述基站的RRC指令配置给所述终端。Optionally, a precoding matrix subset of the TPMI indication of the subband group and a manner of selecting a precoding matrix from the precoding matrix subset are configured in the terminal, or configured by using an RRC instruction of the base station To the terminal.
基于本申请的上述具体实施方式，可以为上行资源调度占用的每个子带指示一个预编码矩阵。并且具有以下技术效果：Based on the foregoing specific implementation manner of the present application, a precoding matrix may be indicated for each subband occupied by the uplink resource scheduling. And has the following technical effects:
1、保持子带宽度只和***带宽有关，相对于现有技术，由于子带的宽度不再随上行资源调度的频域宽度变化，可以统一进行子带级的信号干扰管理，保持上行传输的稳定性。1. Maintaining the subband width is only related to the system bandwidth. Compared with the prior art, since the width of the subband does not change with the frequency domain width of the uplink resource scheduling, the signal interference management of the subband level can be uniformly performed, and the uplink transmission is maintained. stability.
2、令下行控制信息中原来指示子带的预编码矩阵的比特，用来指示子带组的预编码矩阵子集，由于子带的宽度相对固定，可根据上行资源调度的宽度动态调整子带组中的子带数目，进而保持指示比特的位数不变，这样下行控制信息DCI的比特长度固定，保证下行控制信息正常被终端获取，保持了上行数据传输正常进行。2. The bits of the precoding matrix of the original indicator subband in the downlink control information are used to indicate the precoding matrix subset of the subband group. Since the width of the subband is relatively fixed, the subband can be dynamically adjusted according to the width of the uplink resource scheduling. The number of subbands in the group, and the number of bits of the indication bit are kept unchanged, so that the bit length of the downlink control information DCI is fixed, so that the downlink control information is normally acquired by the terminal, and the uplink data transmission is maintained normally.
3、指示子带组的预编码矩阵子集的比特位置可以固定为1个比特或2个比特，基于此，可以对码本进行增强，使得对于每个秩，在宽带用3个比特进行指示，而在每个子带用于2个比特进行指示。例如，对于不同的秩(如Rank＝1,2,3，或4)，可以统一采用两个连续比特来指示一个确定的预编码矩。3. The bit position of the precoding matrix subset indicating the subband group may be fixed to 1 bit or 2 bits. Based on this, the codebook may be enhanced such that for each rank, 3 bits are indicated in the wideband. And in each subband for 2 bits for indication. For example, for different ranks (eg, Rank=1, 2, 3, or 4), two consecutive bits can be uniformly used to indicate a certain precoding moment.
基于本申请提供的上述上行子带预编码矩阵的指示方法，每1个比特或每2个比特指示一个子带组的预编码矩阵子集的相关配置信息。一个子带组的预编码矩阵子集的配置信息至少包括两个预编码码字的限制集，预编码码字的限制集用来确定一个预编码矩阵，下面将结合码本设计对预编码矩阵子集的相关配置的具体实施方式进行说明。Based on the foregoing indication method of the uplink subband precoding matrix provided by the present application, the relevant configuration information of the precoding matrix subset of one subband group is indicated every 1 bit or every 2 bits. The configuration information of the precoding matrix subset of a subband group includes at least a restriction set of two precoding codewords, and the restriction set of the precoding codeword is used to determine a precoding matrix, and the precoding matrix is combined with the codebook design below. A specific implementation of the related configuration of the subset will be described.
首先，在现有技术中，针对已经存在的NR下行两级码本，进行如下2个方面的增强：First, in the prior art, for the existing NR downlink two-level codebook, the following two aspects are enhanced:
1)针对Rank＝2的情况，对于第二个传输层的基波束选择的指示，从宽带指示变为子带指示；1) for the case of Rank=2, the indication of the base beam selection for the second transmission layer is changed from the broadband indication to the sub-band indication;
2)针对Rank＝3、4的情况，对于两个正交的波束的交叉极化相位的选择，增加可以不一样的选项。2) For the case of Rank=3, 4, for the selection of the cross-polarization phase of two orthogonal beams, the options may be different.
进一步，基于以上两处的增强，NR上行两级码本可以设计为：Further, based on the enhancements of the above two, the NR uplink two-level codebook can be designed as:
第一级W1指示一组过采样的DFT波束。在4端口码本中，过采样因子为O1＝4，第一级内，考虑N1＝2个端口产生的波束
Figure PCTCN2018105638-appb-000054
有 The first level W1 indicates a set of oversampled DFT beams. In the 4-port codebook, the oversampling factor is O1=4. In the first stage, consider the beam generated by N1=2 ports.
Figure PCTCN2018105638-appb-000054
Have
Figure PCTCN2018105638-appb-000055
Figure PCTCN2018105638-appb-000055
通过确定i1的取值，可以确定一个宽带的基波束选择。基于第一级的选择，在每个子带上，进一步通过一个1比特或2比特的指示，指示两个2-端口的端口组之间产生的交叉极化相位，如下所示：By determining the value of i1, a broadband base beam selection can be determined. Based on the selection of the first level, on each subband, a 1-bit or 2-bit indication is further indicated to indicate the cross-polarization phase generated between the two 2-port port groups, as follows:
Rank＝1时：
Figure PCTCN2018105638-appb-000056
When Rank=1:
Figure PCTCN2018105638-appb-000056
这样，在宽带需要3个比特来指示
Figure PCTCN2018105638-appb-000057
在每个子带，需要2个比特来指示c1,0的选择。 In this way, 3 bits are required in the broadband to indicate
Figure PCTCN2018105638-appb-000057
In each subband, 2 bits are required to indicate the choice of c1,0.
Rank＝2时：
Figure PCTCN2018105638-appb-000058
Rank=2:
Figure PCTCN2018105638-appb-000058
这样，在宽带需要3个比特来指示k1，在每个子带，需要2个比特来指示c1,0和k’1,l的选择。Thus, 3 bits are required in the wideband to indicate k1, and in each subband, 2 bits are required to indicate the selection of c1, 0 and k'1, l.
Rank＝3或4时：Rank=3 or 4:
Figure PCTCN2018105638-appb-000059
Figure PCTCN2018105638-appb-000059
k′ 1,0＝k′ 1,2＝0,k′ 1,1＝k′ 1,3＝O 1, k' 1,0 =k' 1,2 =0,k' 1,1 =k' 1,3 =O 1 ,
其中，对于每个n，cr,l的取值如下Where, for each n, cr, l values are as follows
Figure PCTCN2018105638-appb-000060
Figure PCTCN2018105638-appb-000060
Figure PCTCN2018105638-appb-000061
Figure PCTCN2018105638-appb-000061
这样，对于每个秩，在宽带都需要3个比特进行指示，而在每个子带都需要2个比特进行指示。这样的设计，可以满足上述上行子带预编码矩阵的指示方法中，统一采用两个连续比特来指示一个确定的预编码矩。Thus, for each rank, 3 bits are required for indication in the wideband, and 2 bits are required for indication in each subband. Such a design can satisfy the above-mentioned indication method of the uplink subband precoding matrix by uniformly using two consecutive bits to indicate a certain precoding moment.
再进一步的，基于这样的码本设计，还可以通过如下几种实施选项定义预编码码字的限制集。Still further, based on such a codebook design, a restricted set of pre-coded codewords can also be defined by several implementation options as follows.
实施选项一：所述预编码码字的限制集选项是确定的，基站和终端基于这一固定的限制集，终端基于基站指示的选择(即基站指示的从预编码矩阵子集中选择预编码矩阵的方式)，确定某一子带上可选择的限制集，进而确定一个预编码矩阵。Implementation option 1: the restriction set option of the precoding codeword is determined, and the base station and the terminal are based on the fixed restriction set, and the terminal selects a precoding matrix from the precoding matrix subset indicated by the base station according to the selection indicated by the base station. The method of determining a set of restrictions on a subband to determine a precoding matrix.
实施选项二：基站配置一系列预编码矩阵的限制集配置，并半静态的通知UE，比如，基站通过媒体接入控制控制元素(Media Access Control Control Element，MAC CE)配置，也可以通过RRC信令指示。基于半静态配置的限制集，基站在下行控制信息中，选择其中一个限制集通知终端，终端在限制集中随机选择一个预编码矩阵上报。Implementation Option 2: The base station configures a set of pre-coding matrix restriction sets, and semi-statically notifies the UE. For example, the base station is configured through a Media Access Control Control Element (MAC CE), or may be through an RRC letter. Order instructions. Based on the restriction set of the semi-static configuration, the base station selects one of the restriction sets to notify the terminal in the downlink control information, and the terminal randomly selects a precoding matrix to report in the restriction set.
例如，上述实施选项中，当每个子带组通过1比特指示预编码矩阵的限制集信息时，可以基于上述两级码本进行如下设计：For example, in the foregoing implementation option, when each subband group indicates the restriction set information of the precoding matrix by 1 bit, the following two-level codebook may be designed as follows:
1)Rank＝1时，存在两个选项1) When Rank=1, there are two options
选项一：所述的两个c1,0限制集为{1,j}和{-1,-j}。此时，基站通过1比特指示UE可选的交叉极化相位的候选集为{1,j}或{-1,-j}。Option 1: The two c1,0 restriction sets are {1,j} and {-1,-j}. At this time, the base station indicates, by 1 bit, that the candidate set of the cross-polarization phase selectable by the UE is {1, j} or {-1, -j}.
选项二：所述的两个c1,0限制集为{1,-j}和{-1,j}。此时，基站通过1比特指示UE可选的交叉极化相位的候选集为{1,-j}或{-1,j}。Option 2: The two c1,0 restriction sets described are {1, -j} and {-1, j}. At this time, the base station indicates, by 1 bit, that the candidate set of the cross-polarization phase selectable by the UE is {1, -j} or {-1, j}.
在两个选项之间的切换，可以通过MAC CE配置，也可以通过RRC信令指示。The switch between the two options can be configured by MAC CE or by RRC signaling.
2)Rank＝2时，通过1比特指示第二传输层和第一传输层之间波束是否一致。交叉极化相位可以在[1,1；1,-1]和[1,1；j,-j]之间任选。2) When Rank=2, it is indicated by 1 bit whether the beams between the second transmission layer and the first transmission layer are identical. The cross polarization phase can be selected between [1, 1; 1, -1] and [1, 1; j, -j].
3)Rank＝3或4时，通过1比特指示在n∈{0,1}还是n∈{2,3}中做交叉极化相位的循环。3) When Rank=3 or 4, a cycle of cross-polarization phase is performed in n∈{0,1} or n∈{2,3} by 1 bit.
又例如，当上述实施选项中，当每个子带组通过2比特指示预编码矩阵的限制集信息时，可以基于上述两级码本进行如下设计：For another example, in the above implementation option, when each subband group indicates the restriction set information of the precoding matrix by 2 bits, the following two-level codebook may be designed as follows:
1)Rank＝1时，存在两个选项1) When Rank=1, there are two options
选项一：所述的四个c1,0限制集为{1,-j}，{-1,j}，{1,j}和{-1,-j}。此时，基站通过2比特指示UE可选的交叉极化相位的候选集为四个选择中的一个。Option 1: The four c1,0 restriction sets are {1,-j}, {-1,j}, {1,j} and {-1,-j}. At this time, the base station indicates that the candidate set of the cross-polarization phase selectable by the UE is one of four options by 2 bits.
选项二：所述的两个c1,0限制集为{1,j,-1}，{-1,j,-j}，{1,j,-j}和{j,-1,-j}。此时，基 站通过2比特指示UE可选的交叉极化相位的候选集为四个选择中的一个。Option 2: The two c1,0 restriction sets are {1,j,-1}, {-1,j,-j},{1,j,-j} and {j,-1,-j }. At this time, the base station indicates that the candidate set of the cross-polarization phase selectable by the UE is one of four options by 2 bits.
在两个选项之间的切换，可以通过MAC CE配置，也可以通过RRC信令指示。The switch between the two options can be configured by MAC CE or by RRC signaling.
2)Rank＝2时，对于第二传输层选择正交波束的情况，增加两种交叉极化相位与第一传输层不一样的循环：2) When Rank=2, for the case where the second transmission layer selects the orthogonal beam, two cycles in which the cross polarization phase is different from the first transmission layer are added:
00：第一传输层和第二传输层选择相同的波束；第一传输层在[1,1]；[1,j]中循环，第二传输层选择在[1,-1]；[1,-j]中循环。00: the first transmission layer and the second transmission layer select the same beam; the first transmission layer circulates in [1, 1]; [1, j], and the second transmission layer is selected in [1, -1]; [1 , -j] loop.
01：第一传输层和第二传输层选择不同的波束；第一传输层在[1,1]；[1,j]中循环，第二传输层在[1,-1]；[1,-j]中循环。01: The first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, 1]; [1, j], and the second transport layer is at [1, -1]; [1, -j] in the loop.
10：第一传输层和第二传输层选择不同的波束；第一传输层在[1,-1]；[1,-j]中循环，第二传输层在[1,1]；[1,-j]中循环。10: The first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, -1]; [1, -j], and the second transport layer is in [1, 1]; [1 , -j] loop.
11：第一传输层和第二传输层选择不同的波束；第一传输层在[1,1]；[1,-j]中循环，第二传输层在[1,1]；[1,j]中循环。11: The first transport layer and the second transport layer select different beams; the first transport layer circulates in [1, 1]; [1, -j], and the second transport layer is at [1, 1]; [1, j] in the loop.
3)Rank＝3或Rank＝4时，通过2比特指示在n∈{0,1}或n∈{2,3}或n∈{0,2}或n∈{1,3}中的任何一个。3) When Rank=3 or Rank=4, any of n∈{0,1} or n∈{2,3} or n∈{0,2} or n∈{1,3} is indicated by 2 bits. One.
基于相同的发明构思，如图18所示，本申请实施例提供的一种装置200，包括至少一个处理器21，通信总线22，存储器23以及至少一个通信接口24。Based on the same inventive concept, as shown in FIG. 18, an apparatus 200 provided by an embodiment of the present application includes at least one processor 21, a communication bus 22, a memory 23, and at least one communication interface 24.
示例性的，图1中的终端200也可以为图18所示的装置。终端200可以通过处理器21实现本申请实施例中的上行子带预编码矩阵的指示方法中与终端有关的步骤。示例性的，图1中的基站100也可以为图18所示的装置，基站100可以通过处理器21实现本申请实施例中的上行子带预编码矩阵的指示方法中与基站有关的步骤。Exemplarily, the terminal 200 in FIG. 1 can also be the device shown in FIG. The terminal 200 can implement the steps related to the terminal in the indication method of the uplink sub-band precoding matrix in the embodiment of the present application by using the processor 21. For example, the base station 100 in FIG. 1 may also be the apparatus shown in FIG. 18. The base station 100 may implement the steps related to the base station in the indication method of the uplink subband precoding matrix in the embodiment of the present application by using the processor 21.
处理器21可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。The processor 21 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.
通信总线22可包括一通路，在上述组件之间传送信息。所述通信接口24，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(RAN)，WALN等。Communication bus 22 may include a path for communicating information between the components described above. The communication interface 24 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), WALN, and the like.
存储器23可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由该装置存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器相连接。存储器也可以和处理器集成在一起。The memory 23 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions. The dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other medium accessed by the device, but is not limited thereto. The memory can exist independently and be connected to the processor via a bus. The memory can also be integrated with the processor.
其中，所述存储器23用于存储执行本申请方案的应用程序代码，并由处理器21来控制执行。所述处理器21用于执行所述存储器23中存储的应用程序代码。The memory 23 is used to store application code for executing the solution of the present application, and is controlled by the processor 21 for execution. The processor 21 is configured to execute application code stored in the memory 23.
在具体实现中，作为一种实施例，处理器21可以包括一个或多个CPU，例如图18 中的CPU0和CPU1。In a particular implementation, as an embodiment, processor 21 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
在具体实现中，作为一种实施例，该装置200可以包括多个处理器，例如图18中的处理器21和处理器28。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。In a particular implementation, as an embodiment, the apparatus 200 can include a plurality of processors, such as the processor 21 and the processor 28 of FIG. Each of these processors can be a single-CPU processor or a multi-core processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
本申请实施例可以根据上述方法示例对图18所示的装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既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。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。The embodiment of the present application may perform the division of the function modules on the device shown in FIG. 18 according to the foregoing method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. . The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
在本实施例中，图18所示的装置以对应各个功能划分各个功能模块的形式来呈现，或者，该装置以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。In the present embodiment, the apparatus shown in FIG. 18 is presented in the form of dividing each functional module corresponding to each function, or the apparatus is presented in the form of dividing each functional module in an integrated manner. A "module" herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above. Device.
比如，在采用对应各个功能划分各个功能模块的情况下，图19示出了上述实施例中所涉及的装置的可能的结构示意图，该装置900可以是上述实施例中的终端或基站。该装置900包括处理单元901、收发单元902。所述收发单元902用于所述处理单元901收发信号。图19中的处理单元901、收发单元902可以通过图18的处理器21(和/或处理器28)和存储器23来实现，具体的，处理单元901、收发单元902可以通过由处理器21(和/或处理器28)来调用存储器23中存储的应用程序代码来执行，本申请实施例对此不作任何限制。For example, in the case of dividing each functional module by using corresponding functions, FIG. 19 shows a possible structural diagram of the device involved in the above embodiment, and the device 900 may be the terminal or the base station in the above embodiment. The device 900 includes a processing unit 901 and a transceiver unit 902. The transceiver unit 902 is configured to send and receive signals by the processing unit 901. The processing unit 901 and the transceiver unit 902 in FIG. 19 can be implemented by the processor 21 (and/or the processor 28) and the memory 23 of FIG. 18. Specifically, the processing unit 901 and the transceiver unit 902 can be implemented by the processor 21 ( And/or the processor 28) is called to execute the application code stored in the memory 23, and the embodiment of the present application does not impose any limitation thereon.
具体实现中，当装置900为终端时，收发单元902用于接收基站发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；处理单元901用于：根据所述下行控制信息，获取所述发送预编码矩阵序号对应的预编码矩阵子集；根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。In a specific implementation, when the device 900 is a terminal, the transceiver unit 902 is configured to receive downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, The bits of the first bit interval are used to indicate the transmit precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is occupied by uplink resource scheduling. The number of the sub-bands is dynamically adjusted; the processing unit 901 is configured to: obtain, according to the downlink control information, a precoding matrix subset corresponding to the sending precoding matrix sequence; and determine, according to the precoding matrix subset, the uplink A precoding matrix for performing uplink data transmission on a subband occupied by resource scheduling.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，所述子带的宽度和所述第一比特区间的比特位数被配置在所述终端中，或者通过所述基站的无线资源管理RRC指令配置给所述终端。In one possible design, the width of the sub-band and the number of bits of the first bit interval are configured in the terminal, or are configured to the terminal by a radio resource management RRC command of the base station.
在一个可能的设计中，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。In one possible design, one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带 数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the sub-subs The number of subbands in the band group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; the number of subbands occupied by the uplink resource scheduling When n satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and the number of subbands in each of the remaining subband groups is p. Where p = 2 k , k ≥ 0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), at least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the The number of subbands in the subband group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; when the subband occupied by the uplink resource scheduling When the number n satisfies p*N<n≤2*p*N, the number of sub-bands in one of the sub-band groups is less than or equal to 2*p, and the number of sub-bands in each of the remaining sub-band groups is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit. The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当n≤N时，每一个所述子带组中的子带数目为1个；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0；所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the transmit precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. a continuous bit; when n≤N, the number of subbands in each of the subband groups is one; when the number of subbands occupied by the uplink resource scheduling is n, p*N<n≤2*p*N Where, where p = 2 k , k ≥ 0; the number of subband groups is N, and the number of subbands included in the N subband groups is p, 2 * p, and (p + 1 + ( Any two or three of n-1) mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
可选的，若
Figure PCTCN2018105638-appb-000062
且
Figure PCTCN2018105638-appb-000063
则当子带组的序号小于
Figure PCTCN2018105638-appb-000064
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000065
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000066
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000062
And
Figure PCTCN2018105638-appb-000063
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000064
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000065
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000066
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000067
则当子带组的序号等于
Figure PCTCN2018105638-appb-000068
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000069
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000067
Then when the subband group number is equal to
Figure PCTCN2018105638-appb-000068
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000069
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000070
则当子带组的序号小于
Figure PCTCN2018105638-appb-000071
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000072
时，该子带组中的子带数目为 (p+1+(n-1)mod p)个。 Optional if
Figure PCTCN2018105638-appb-000070
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000071
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000072
The number of subbands in the subband group is (p+1+(n-1) mod p).
在一个可能的设计中，处理单元901具体用于：所述终端确定每一所述子带组，以及每一子带组中的子带；所述终端按照从所述预编码矩阵子集中选择预编码矩阵的方式，从任一所述子带对应的子带组的所述预编码矩阵子集中，选择出在所述子带上进行上行数据传输的预编码矩阵。In a possible design, the processing unit 901 is specifically configured to: the terminal determine each of the subband groups, and subbands in each subband group; the terminal selects from the precoding matrix subset In a precoding matrix manner, a precoding matrix for performing uplink data transmission on the subband is selected from the precoding matrix subset of the subband group corresponding to any of the subbands.
在一个可能的设计中，所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式被配置在所述终端中，或者通过所述基站的RRC指令配置给所述终端。In a possible design, the precoding matrix subset and the manner of selecting the precoding matrix from the precoding matrix subset are configured in the terminal, or are configured to the terminal by using an RRC command of the base station. .
当装置900为基站时，处理单元901用于确定向终端发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；收发单元902用于向终端发送所述下行控制信息，所述下行控制信息用于指示所述终端根据所述下行控制信息，获取所述预编码矩阵序号对应的预编码矩阵子集，以及根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。When the device 900 is a base station, the processing unit 901 is configured to determine downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and the first bit The bits of the interval are used to indicate the transmit precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is based on the subband occupied by the uplink resource scheduling. The number is dynamically adjusted; the transceiver unit 902 is configured to send the downlink control information to the terminal, where the downlink control information is used to instruct the terminal to acquire a precoding matrix subset corresponding to the precoding matrix sequence number according to the downlink control information. And determining, according to the precoding matrix subset, a precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling.
在一个可能的设计中，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。In a possible design, the width of the sub-band is determined according to a system bandwidth in which the terminal is configured, and the width of the sub-band is a number of consecutive physical resource blocks PRB occupied by the sub-band in the frequency domain or consecutively The number of resource blocks RB.
在一个可能的设计中，收发单元902还用于：所述基站向所述终端发送无线资源管理RRC指令，所述RRC指令用于指示所述子带的宽度和所述第一比特区间的比特位数。In a possible design, the transceiver unit 902 is further configured to: send, by the base station, a radio resource management RRC command to the terminal, where the RRC command is used to indicate a width of the subband and a bit of the first bit interval. Number of digits.
在一个可能的设计中，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。In one possible design, one of the transmit precoding matrix sequence numbers occupies two consecutive bits or one bit of the first bit interval.
在一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 In a possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the sub-subs The number of subbands in the band group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; the number of subbands occupied by the uplink resource scheduling When n satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and the number of subbands in each of the remaining subband groups is p. Where p = 2 k , k ≥ 0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*Np), at least one redundant bit is included in the 2N bits; the redundancy The bits are padded with 0; alternatively, the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数；当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer; when the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, each of the The number of subbands in the subband group is one, and the sequence of the transmission precoding matrix of each of the subband groups occupies two consecutive bits of the first bit interval; when the subband occupied by the uplink resource scheduling When the number n satisfies p*N<n≤2*p*N, the number of sub-bands in one of the sub-band groups is less than or equal to 2*p, and the number of sub-bands in each of the remaining sub-band groups is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two consecutive bits of the first bit interval.
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；所述冗余比特被填充为0；或者，所述冗余比 特用于指示相邻子带上的预编码矩阵是否必须不一致。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit. The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
在另一个可能的设计中，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 In another possible design, the number of bits in the first bit interval is 2N, and N is a positive integer, and the transmit precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. a continuous bit; when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0, the number of the subband groups is N And the number of sub-bands included in the N sub-band groups is any two or three of p, 2*p, and (p+1+(n-1) mod p).
可选的，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。Optionally, when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands included in each of the subband groups is determined by: After each of the sub-band groups is allocated p sub-bands, the remaining n-pN sub-bands in the n sub-bands are sequentially sub-band groups according to the sub-band group number from small to large or from large to small. P sub-bands are allocated until the n-pN sub-bands are allocated.
可选的，若
Figure PCTCN2018105638-appb-000073
且
Figure PCTCN2018105638-appb-000074
则当子带组的序号小于
Figure PCTCN2018105638-appb-000075
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000076
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000077
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000073
And
Figure PCTCN2018105638-appb-000074
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000075
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000076
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000077
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000078
则当子带组的序号等于
Figure PCTCN2018105638-appb-000079
时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
Figure PCTCN2018105638-appb-000080
时，该子带组中的子带数目为p个。 Optional if
Figure PCTCN2018105638-appb-000078
Then when the subband group number is equal to
Figure PCTCN2018105638-appb-000079
The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
Figure PCTCN2018105638-appb-000080
The number of subbands in the subband group is p.
可选的，若
Figure PCTCN2018105638-appb-000081
则当子带组的序号小于
Figure PCTCN2018105638-appb-000082
时，该子带组中的子带数目为2*p个，当子带组的序号等于
Figure PCTCN2018105638-appb-000083
时，该子带组中的子带数目为(p+1+(n-1)mod p)个。 Optional if
Figure PCTCN2018105638-appb-000081
Then when the subband group number is less than
Figure PCTCN2018105638-appb-000082
The number of subbands in the subband group is 2*p, when the subband group number is equal to
Figure PCTCN2018105638-appb-000083
The number of subbands in the subband group is (p+1+(n-1) mod p).
在一个可能的设计中，收发单元902还用于：所述基站向所述终端发送RRC指令，所述RRC指令用于指示每一个所述子带组的所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式。In a possible design, the transceiver unit 902 is further configured to: send, by the base station, an RRC command to the terminal, where the RRC command is used to indicate the precoding matrix subset and the slave of each of the subband groups The manner in which the precoding matrix is selected in the subset of precoding matrices.
上述装置实施例的具体实现方式与方法实施例相对应，其具体实现方式和有益效果和参加方式实施例的相关描述。The specific implementation manners of the foregoing device embodiments correspond to the method embodiments, and the specific implementation manners and beneficial effects and related descriptions of the participating mode embodiments are described.
基于同一发明构思，本申请实施例还提供了一种电路***，图20为本发明实施方式中所提供的电路***的结构示意图(例如接入点或基站、站点或者终端等通信装置)。Based on the same inventive concept, the embodiment of the present application further provides a circuit system, and FIG. 20 is a schematic structural diagram of a circuit system (for example, an access point or a communication device such as a base station, a station, or a terminal) provided in an embodiment of the present invention.
如图20所示，电路***1200可以由总线1201作一般性的总线体系结构来实现。根据电路***1200的具体应用和整体设计约束条件，总线1201可以包括任意数量的互连总线和桥接。总线1201将各种电路连接在一起，这些电路包括处理器1202、存储介质1203和总线接口1204。可选的，电路***1200使用总线接口1204将网络适配器1205等经由总线1201连接。网络适配器1205可用于实现无线通信网络中物理层的信号处理功能，并通过天线1207实现射频信号的发送和接收。用户接口1206可以连接用户终端，例如：键 盘、显示器、鼠标或者操纵杆等。总线1201还可以连接各种其它电路，如定时源、***设备、电压调节器或者功率管理电路等，这些电路是本领域所熟知的，因此不再详述。As shown in FIG. 20, circuitry 1200 can be implemented by bus 1201 as a general bus architecture. Depending on the particular application of circuitry 1200 and overall design constraints, bus 1201 may include any number of interconnect buses and bridges. Bus 1201 connects various circuits together, including processor 1202, storage medium 1203, and bus interface 1204. Alternatively, circuitry 1200 connects network adapters 1205 and the like via bus 1201 using bus interface 1204. The network adapter 1205 can be used to implement signal processing functions of the physical layer in the wireless communication network, and to implement transmission and reception of radio frequency signals through the antenna 1207. The user interface 1206 can be connected to a user terminal such as a keyboard, display, mouse or joystick. The bus 1201 can also be connected to various other circuits, such as timing sources, peripherals, voltage regulators, or power management circuits, etc., which are well known in the art and therefore will not be described in detail.
可以替换的，电路***1200也可配置成芯片或片上***，该芯片或片上***包括:提供处理器功能的一个或多个微处理器；以及提供存储介质1203的至少一部分的外部存储器，所有这些都通过外部总线体系结构与其它支持电路连接在一起。Alternatively, circuitry 1200 can also be configured as a chip or system on a chip that includes one or more microprocessors that provide processor functionality, and external memory that provides at least a portion of storage medium 1203, all of which Both are connected to other support circuits through an external bus architecture.
可替换的，电路***1200可以使用下述来实现:具有处理器1202、总线接口1204、用户接口1206的ASIC(专用集成电路)；以及集成在单个芯片中的存储介质1203的至少一部分，或者，电路***1200可以使用下述来实现:一个或多个FPGA(现场可编程门阵列)、PLD(可编程逻辑器件)、控制器、状态机、门逻辑、分立硬件部件、任何其它适合的电路、或者能够执行本发明通篇所描述的各种功能的电路的任意组合。Alternatively, circuitry 1200 can be implemented using an ASIC (application specific integrated circuit) having a processor 1202, a bus interface 1204, a user interface 1206, and at least a portion of a storage medium 1203 integrated in a single chip, or Circuitry 1200 can be implemented using one or more FPGAs (Field Programmable Gate Arrays), PLDs (Programmable Logic Devices), controllers, state machines, gate logic, discrete hardware components, any other suitable circuitry, Or any combination of circuits capable of performing the various functions described throughout the present invention.
其中，处理器1202负责管理总线和一般处理(包括执行存储在存储介质1203上的软件)。处理器1202可以使用一个或多个通用处理器和/或专用处理器来实现。处理器的例子包括微处理器、微控制器、DSP处理器和能够执行软件的其它电路。应当将软件广义地解释为表示指令、数据或其任意组合，而不论是将其称作为软件、固件、中间件、微代码、硬件描述语言还是其它。Among them, the processor 1202 is responsible for managing the bus and general processing (including executing software stored on the storage medium 1203). Processor 1202 can be implemented using one or more general purpose processors and/or special purpose processors. Examples of processors include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Software should be interpreted broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
在下图中存储介质1203被示为与处理器1202分离，然而，本领域技术人员很容易明白，存储介质1203或其任意部分可位于电路***1200之外。举例来说，存储介质1203可以包括传输线、用数据调制的载波波形、和/或与无线节点分离开的计算机制品，这些介质均可以由处理器1202通过总线接口1204来访问。可替换地，存储介质1203或其任意部分可以集成到处理器1202中，例如，可以是高速缓存和/或通用寄存器。 Storage medium 1203 is shown separated from processor 1202 in the following figures, however, those skilled in the art will readily appreciate that storage medium 1203, or any portion thereof, may be located external to circuitry 1200. For example, storage medium 1203 can include transmission lines, carrier waveforms modulated with data, and/or computer products separate from wireless nodes, all of which can be accessed by processor 1202 through bus interface 1204. Alternatively, storage medium 1203, or any portion thereof, can be integrated into processor 1202, for example, can be a cache and/or a general purpose register.
处理器1202可执行本申请上述任意实施例中的上行子带预编码矩阵的指示方法，具体内容在此不再赘述。The processor 1202 can perform the indication method of the uplink sub-band precoding matrix in any of the foregoing embodiments of the present application, and details are not described herein again.
示例性的，图21为本发明实施例的电路***的另一种结构示意图。该电路***可以是处理器。该处理器可体现为芯片或片上***(system on chip，SOC)，被设置于本发明实施例的无线通信***的基站或终端中，以使得该基站或终端实现本发明实施例的无线通信方法。如图21所示，电路***60包括：接口单元601，控制及运算单元602，和存储单元603。其中，接口单元用于与基站或终端的其他组件连通，存储单元603用于存储计算机程序或指令，控制及运算单元602用于译码和执行这些计算机程序或指令。应理解，这些计算机程序或指令可包括上述终端功能程序，也可包括上述基站功能程序。当终端功能程序被控制及运算单元602译码并执行时，可使得终端实现本发明实施例的上行子带预编码矩阵的指示方法，终端的功能。当基站功能程序被所述控制及运算单元602译码并执行时，可使得基站实现本发明实施例的上行子带预编码矩阵的指示方法中基站的功能。Illustratively, FIG. 21 is another schematic structural diagram of a circuit system according to an embodiment of the present invention. The circuitry can be a processor. The processor may be embodied as a chip or a system on chip (SOC), which is disposed in a base station or a terminal of the wireless communication system according to the embodiment of the present invention, so that the base station or the terminal implements the wireless communication method of the embodiment of the present invention. . As shown in FIG. 21, the circuit system 60 includes an interface unit 601, a control and operation unit 602, and a storage unit 603. The interface unit is for communicating with other components of the base station or terminal, the storage unit 603 is for storing computer programs or instructions, and the control and operation unit 602 is for decoding and executing the computer programs or instructions. It should be understood that these computer programs or instructions may include the terminal function programs described above, as well as the base station function programs described above. When the terminal function program is controlled and the operation unit 602 is decoded and executed, the terminal can be configured to implement the indication method of the uplink sub-band precoding matrix and the function of the terminal in the embodiment of the present invention. When the base station function program is decoded and executed by the control and operation unit 602, the base station can be configured to implement the function of the base station in the indication method of the uplink subband precoding matrix in the embodiment of the present invention.
在一种可能的设计中，这些终端功能程序或基站功能程序存储在电路***60外部的存储器中。当上述终端功能程序或基站功能程序被控制及运算单元602译码并执行时，存储单元603中临时存放上述终端功能程序的部分或全部内容，或者临时存放上述基站功能程序的部分或全部内容。In one possible design, these terminal function programs or base station function programs are stored in a memory external to circuitry 60. When the terminal function program or the base station function program is controlled and executed by the operation unit 602, the storage unit 603 temporarily stores part or all of the contents of the terminal function program, or temporarily stores part or all of the contents of the base station function program.
在另一种可选实现方式中，这些终端功能程序或基站功能程序被设置于存储在电路***60内部的存储单元603中。当电路***60内部的存储单元603中存储有终端功能程序 时，电路***60可被设置在本发明实施例的无线通信***的终端200中。当电路***60内部的存储单元603中存储有基站功能程序时，电路***60可被设置在本发明实施例的无线通信***的基站100中。In another alternative implementation, these terminal function programs or base station function programs are disposed in a storage unit 603 stored within circuitry 60. When a terminal function program is stored in the storage unit 603 inside the circuit system 60, the circuit system 60 can be disposed in the terminal 200 of the wireless communication system of the embodiment of the present invention. When the base station function program is stored in the storage unit 603 inside the circuit system 60, the circuit system 60 can be disposed in the base station 100 of the wireless communication system of the embodiment of the present invention.
在又一种可选实现方式中，这些终端功能程序或基站功能程序的部分内容存储在电路***60外部的存储器中，这些终端功能程序或基站功能程序的其他部分内容存储在电路***60内部的存储单元603中。In still another alternative implementation, portions of the terminal function program or base station function program are stored in a memory external to circuitry 60, and other portions of the terminal function program or base station function program are stored within circuitry system 60. In the storage unit 603.
基于相同构思，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行本申请所涉及的各种实施例中与终端相关的方法步骤。Based on the same concept, the present application provides a computer readable storage medium having instructions stored therein that, when run on a computer, cause the computer to execute the various embodiments and terminals involved in the present application Related method steps.
基于相同构思，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行本申请所涉及的各种实施例中与基站相关的方法步骤。Based on the same concept, the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform various embodiments in accordance with the present application with a base station Related method steps.
基于相同构思，本申请提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行本申请所涉及的各种实施例中与终端相关的方法步骤。Based on the same concept, the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method steps associated with the terminal in various embodiments of the present application.
基于相同构思，本申请提供一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行本申请所涉及的各种实施例中与基站相关的方法步骤。Based on the same concept, the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform the method steps associated with the base station in various embodiments of the present application.
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
本所属领域的技术人员可以清楚地了解到，本发明提供的各实施例的描述可以相互参照，为描述的方便和简洁，关于本发明实施例提供的各装置、设备的功能以及执行的步骤可以参照本发明方法实施例的相关描述，在此不做赘述。It will be apparent to those skilled in the art that the description of the embodiments of the present invention can be referred to each other. For the convenience and brevity of the description, the functions and steps of the devices and devices provided by the embodiments of the present invention may be Reference is made to the related description of the method embodiment of the present invention, and details are not described herein.
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。Although the present application has been described herein in connection with the various embodiments, those skilled in the art can Other variations of the disclosed embodiments are achieved. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill several of the functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that the measures are not combined to produce a good effect.
本领域技术人员应明白，本申请的实施例可提供为方法、装置(设备)、或计算机程 序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式，这里将它们都统称为“模块”或“***”。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。计算机程序存储/分布在合适的介质中，与其它硬件一起提供或作为硬件的一部分，也可以采用其他分布形式，如通过Internet或其它有线或无线电信***。Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, apparatus (device), or computer program product. Thus, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects, which are collectively referred to herein as "module" or "system." Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code. The computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。为清楚展示硬件和软件的可替换性(interchangeability)，上述的各种说明性部件(illustrative components)和步骤已经通用地描述了它们的功能。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本发明实施例保护的范围。Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the various illustrative components and steps described above have generally described their functionality. Whether such functionality is implemented by hardware or software depends on the design requirements of the particular application and the overall system. A person skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as being beyond the scope of the embodiments of the present invention.
本申请实施例中所描述的各种说明性的逻辑块，模块和电路可以通过通用处理单元，数字信号处理单元，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理单元可以为微处理单元，可选地，该通用处理单元也可以为任何传统的处理单元、控制器、微控制器或状态机。处理单元也可以通过计算装置的组合来实现，例如数字信号处理单元和微处理单元，多个微处理单元，一个或多个微处理单元联合一个数字信号处理单元核，或任何其它类似的配置来实现。The various illustrative logic blocks, modules and circuits described in the embodiments of the present application may be implemented by a general purpose processing unit, a digital signal processing unit, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic. Devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the functions described. The general purpose processing unit may be a micro processing unit. Alternatively, the general purpose processing unit may be any conventional processing unit, controller, microcontroller or state machine. The processing unit may also be implemented by a combination of computing devices, such as a digital signal processing unit and a microprocessing unit, a plurality of microprocessing units, one or more microprocessing units in conjunction with a digital signal processing unit core, or any other similar configuration. achieve.
在一个或多个示例性的设计中，本发明实施例所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现，这些功能可以存储与电脑可读的媒介上，或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如，这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置，或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理单元读取形式的程序代码的媒介。此外，任何连接都可以被适当地定义为电脑可读媒介，例如，如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、DVD、软盘和蓝光光盘，磁盘通常以磁性复制数据，而碟片通常以激光进行光学复制数据。上述的组合也可以包含在电脑可读媒介中。In one or more exemplary designs, the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium. Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another. The storage medium can be any available media that any general purpose or special computer can access. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general or special processing unit. In addition, any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server or other remote source through a coaxial cable, fiber optic computer, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium. The disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.
本发明说明书的上述描述可以使得本领域技术任何可以利用或实现本发明的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本发明所描述的基本原则可以应用到其它变形中而不偏离本发明的发明本质和范围。因此，本发明所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本发明原则和所公开的新特征一致的最大范围。The above description of the specification of the present invention may enable any of the art to utilize or implement the present invention. Any modifications based on the disclosure should be considered as obvious in the art. The basic principles described herein can be applied to other variants. Without departing from the spirit and scope of the invention. Therefore, the present disclosure is not limited to the described embodiments and designs, but may be extended to the maximum extent consistent with the principles of the invention and the novel features disclosed.

Claims (42)

  1. 一种上行子带预编码矩阵的指示方法，其特征在于，所述方法包括：An indication method for an uplink subband precoding matrix, the method comprising:
    终端接收基站发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；Receiving, by the terminal, downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission pre-sort of the sub-band group Encoding matrix sequence number; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
    所述终端根据所述下行控制信息，获取所述发送预编码矩阵序号对应的预编码矩阵子集；Obtaining, according to the downlink control information, the precoding matrix subset corresponding to the sending precoding matrix sequence number;
    所述终端根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。Determining, by the terminal, a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling according to the precoding matrix subset.
  2. 根据权利要求1所述的方法，其特征在于，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。The method according to claim 1, wherein the width of the subband is determined according to a system bandwidth in which the terminal is configured, and the width of the subband is a continuous physical resource occupied by the subband in a frequency domain. The number of block PRBs or the number of consecutive resource blocks RB.
  3. 根据权利要求1或2所述的方法，所述子带的宽度和所述第一比特区间的比特位数被配置在所述终端中，或者通过所述基站的无线资源管理RRC指令配置给所述终端。The method according to claim 1 or 2, wherein a width of the subband and a bit number of the first bit interval are configured in the terminal, or are configured by a radio resource management RRC command of the base station Said terminal.
  4. 根据权利要求1或2所述的方法，其特征在于，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。The method according to claim 1 or 2, wherein one of said transmission precoding matrix numbers occupies two consecutive bits or one bit of said first bit interval.
  5. 根据权利要求4所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 4, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and each of the remaining The number of subbands in the subband group is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
  6. 根据权利要求4所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 4, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is less than or equal to 2*p, and each of the remaining The number of subbands in the subband group is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. Continuous bits.
  7. 根据权利要求5所述的方法，其特征在于，The method of claim 5 wherein:
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-p), at least one redundant bit is included in the 2N bits;
    所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是 否必须不一致。The redundant bits are padded with 0; or the redundant bits are used to indicate whether the precoding matrices on adjacent subbands must be inconsistent.
  8. 根据权利要求6所述的方法，其特征在于，The method of claim 6 wherein:
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit;
    所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  9. 根据权利要求1或2所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；The method according to claim 1 or 2, wherein the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmission precoding matrix of each of the subband groups occupies the Two consecutive bits of the first bit interval;
    当n≤N时，每一个所述子带组中的子带数目为1个；When n ≤ N, the number of sub-bands in each of the sub-band groups is one;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0, the number of the subband groups is N, and N The number of sub-bands included in the sub-band group is any two or three of p, 2*p, and (p+1+(n-1) mod p).
  10. 根据权利要求9所述的方法，其特征在于，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：The method according to claim 9, wherein when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, each subband group includes a sub The number of bands is determined by:
    为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。After allocating p subbands for each of the N subband groups, the remaining n-pN subbands in the n subbands are sequentially in the order of the subband group numbers from small to large or from large to small. The band group allocates p sub-bands until the n-pN sub-bands are allocated.
  11. 根据权利要求10所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100001
    且
    Figure PCTCN2018105638-appb-100002
    则当子带组的序号小于
    Figure PCTCN2018105638-appb-100003
    时，该子带组中的子带数目为2*p个，当子带组的序号等于
    Figure PCTCN2018105638-appb-100004
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
    Figure PCTCN2018105638-appb-100005
    时，该子带组中的子带数目为p个。     The method of claim 10, wherein
    Figure PCTCN2018105638-appb-100001
    And
    Figure PCTCN2018105638-appb-100002
    Then when the subband group number is less than
    Figure PCTCN2018105638-appb-100003
    The number of subbands in the subband group is 2*p, when the subband group number is equal to
    Figure PCTCN2018105638-appb-100004
    The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
    Figure PCTCN2018105638-appb-100005
    The number of subbands in the subband group is p.
  12. 根据权利要求10所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100006
    则当子带组的序号等于
    Figure PCTCN2018105638-appb-100007
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
    Figure PCTCN2018105638-appb-100008
    时，该子带组中的子带数目为p个。     The method of claim 10, wherein
    Figure PCTCN2018105638-appb-100006
    Then when the subband group number is equal to
    Figure PCTCN2018105638-appb-100007
    The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
    Figure PCTCN2018105638-appb-100008
    The number of subbands in the subband group is p.
  13. 根据权利要求10所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100009
    则当子带组的序号小于
    Figure PCTCN2018105638-appb-100010
    时，该子带组中的子带数目为2*p个，当子带组的序号等于
    Figure PCTCN2018105638-appb-100011
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个。     The method of claim 10, wherein
    Figure PCTCN2018105638-appb-100009
    Then when the subband group number is less than
    Figure PCTCN2018105638-appb-100010
    The number of subbands in the subband group is 2*p, when the subband group number is equal to
    Figure PCTCN2018105638-appb-100011
    The number of subbands in the subband group is (p+1+(n-1) mod p).
  14. 根据权利要求1所述的方法，其特征在于，The method of claim 1 wherein
    所述终端根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵，包括：Determining, by the terminal, the precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling according to the precoding matrix subset, including:
    所述终端确定每一所述子带组，以及每一子带组中的子带；The terminal determines each of the subband groups, and subbands in each subband group;
    所述终端按照从所述预编码矩阵子集中选择预编码矩阵的方式，从任一所述子带对应的子带组的所述预编码矩阵子集中，选择出在所述子带上进行上行数据传输的预编码矩阵。Selecting, by the terminal, the precoding matrix from the precoding matrix subset, selecting, according to the precoding matrix subset of the subband group corresponding to any one of the subbands, performing uplink on the subband A precoding matrix for data transmission.
  15. 根据权利要求12所述的方法，其特征在于，The method of claim 12 wherein:
    所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式被配置在所述终端中，或者通过所述基站的RRC指令配置给所述终端。The precoding matrix subset and the manner of selecting the precoding matrix from the precoding matrix subset are configured in the terminal, or are configured to the terminal by using an RRC command of the base station.
  16. 一种上行子带预编码矩阵的指示方法，其特征在于，包括：An indication method for an uplink subband precoding matrix, comprising:
    基站确定向终端发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；The base station determines the downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where the bit number of the first bit interval is fixed, and the bit of the first bit interval is used to indicate the sending of the subband group. a precoding matrix sequence number; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
    基站向终端发送所述下行控制信息，所述下行控制信息用于指示所述终端根据所述下行控制信息，获取所述预编码矩阵序号对应的预编码矩阵子集，以及根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。The base station sends the downlink control information to the terminal, where the downlink control information is used to instruct the terminal to acquire a precoding matrix subset corresponding to the precoding matrix sequence according to the downlink control information, and according to the precoding matrix. The subset determines a precoding matrix for performing uplink data transmission on the subband occupied by the uplink resource scheduling.
  17. 根据权利要求16所述的方法，其特征在于，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。The method according to claim 16, wherein the width of the subband is determined according to a system bandwidth in which the terminal is configured, and the width of the subband is a continuous physical resource occupied by the subband in a frequency domain. The number of block PRBs or the number of consecutive resource blocks RB.
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：The method of claim 17, wherein the method further comprises:
    所述基站向所述终端发送无线资源管理RRC指令，所述RRC指令用于指示所述子带的宽度和所述第一比特区间的比特位数。The base station sends a radio resource management RRC command to the terminal, where the RRC command is used to indicate a width of the subband and a bit number of the first bit interval.
  19. 根据权利要求16或17所述的方法，其特征在于，一个所述发送预编码矩阵序号占用所述第一比特区间的两个连续比特或1个比特。The method according to claim 16 or 17, wherein one of said transmission precoding matrix numbers occupies two consecutive bits or one bit of said first bit interval.
  20. 根据权利要求19所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 19, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and each of the remaining The number of subbands in the subband group is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
  21. 根据权利要求19所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 19, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连 续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is less than or equal to 2*p, and each of the remaining The number of subbands in the subband group is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. Continuous bits.
  22. 根据权利要求20所述的方法，其特征在于，The method of claim 20 wherein:
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-p)时，所述2N个比特中包括至少一个冗余比特；When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-p), at least one redundant bit is included in the 2N bits;
    所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  23. 根据权利要求21所述的方法，其特征在于，The method of claim 21 wherein
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤(2*p*N-2*p)时，所述2N个比特中包括至少一个冗余比特；When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤(2*p*N-2*p), the 2N bits include at least one redundant bit;
    所述冗余比特被填充为0；或者，所述冗余比特用于指示相邻子带上的预编码矩阵是否必须不一致。The redundant bits are padded to 0; or the redundant bits are used to indicate whether precoding matrices on adjacent subbands must be inconsistent.
  24. 根据权利要求16或17所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；The method according to claim 16 or 17, wherein the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmission precoding matrix of each of the subband groups occupies the Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0；所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0; the number of the subband groups is N, and N The number of sub-bands included in the sub-band group is any two or three of p, 2*p, and (p+1+(n-1) mod p).
  25. 根据权利要求24所述的方法，其特征在于，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：The method according to claim 24, wherein when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, each subband group includes a sub The number of bands is determined by:
    为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。After allocating p subbands for each of the N subband groups, the remaining n-pN subbands in the n subbands are sequentially in the order of the subband group numbers from small to large or from large to small. The band group allocates p sub-bands until the n-pN sub-bands are allocated.
  26. 根据权利要求25所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100012
    且
    Figure PCTCN2018105638-appb-100013
    则     The method of claim 25, wherein
    Figure PCTCN2018105638-appb-100012
    And
    Figure PCTCN2018105638-appb-100013
    then
    当子带组的序号小于
    Figure PCTCN2018105638-appb-100014
    时，该子带组中的子带数目为2*p个，当子带组的序号等于
    Figure PCTCN2018105638-appb-100015
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
    Figure PCTCN2018105638-appb-100016
    时，该子带组中的子带数目为p个。     When the subband group number is less than
    Figure PCTCN2018105638-appb-100014
    The number of subbands in the subband group is 2*p, when the subband group number is equal to
    Figure PCTCN2018105638-appb-100015
    The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
    Figure PCTCN2018105638-appb-100016
    The number of subbands in the subband group is p.
  27. 根据权利要求25所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100017
    则当子带组的序 号等于
    Figure PCTCN2018105638-appb-100018
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个，当子带组的序号大于
    Figure PCTCN2018105638-appb-100019
    时，该子带组中的子带数目为p个。     The method of claim 25, wherein
    Figure PCTCN2018105638-appb-100017
    Then when the subband group number is equal to
    Figure PCTCN2018105638-appb-100018
    The number of subbands in the subband group is (p+1+(n-1) mod p), when the subband group number is greater than
    Figure PCTCN2018105638-appb-100019
    The number of subbands in the subband group is p.
  28. 根据权利要求25所述的方法，其特征在于，若
    Figure PCTCN2018105638-appb-100020
    则当子带组的序号小于
    Figure PCTCN2018105638-appb-100021
    时，该子带组中的子带数目为2*p个，当子带组的序号等于
    Figure PCTCN2018105638-appb-100022
    时，该子带组中的子带数目为(p+1+(n-1)mod p)个。     The method of claim 25, wherein
    Figure PCTCN2018105638-appb-100020
    Then when the subband group number is less than
    Figure PCTCN2018105638-appb-100021
    The number of subbands in the subband group is 2*p, when the subband group number is equal to
    Figure PCTCN2018105638-appb-100022
    The number of subbands in the subband group is (p+1+(n-1) mod p).
  29. 根据权利要求16所述的方法，其特征在于，所述方法还包括：The method of claim 16 wherein the method further comprises:
    所述基站向所述终端发送RRC指令，所述RRC指令用于指示每一个所述子带组的所述预编码矩阵子集和从所述预编码矩阵子集中选择预编码矩阵的方式。The base station sends an RRC command to the terminal, where the RRC instruction is used to indicate the precoding matrix subset of each of the subband groups and a manner of selecting a precoding matrix from the precoding matrix subset.
  30. 一种终端，其特征在于，包括：处理器和收发器；A terminal, comprising: a processor and a transceiver;
    所述收发器用于：接收基站发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；The transceiver is configured to: receive downlink control information sent by the base station, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used for an indicator a transmission precoding matrix sequence number of the group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
    所述处理器用于：根据所述收发器接收的所述下行控制信息，获取为所述发送预编码矩阵序号对应的预编码矩阵子集；根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。The processor is configured to: obtain, according to the downlink control information received by the transceiver, a precoding matrix subset corresponding to the sending precoding matrix sequence number; and determine, according to the precoding matrix subset, the uplink A precoding matrix for performing uplink data transmission on a subband occupied by resource scheduling.
  31. 根据权利要求30所述的方法，其特征在于，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。The method according to claim 30, wherein the width of the subband is determined according to a system bandwidth in which the terminal is configured, and the width of the subband is a continuous physical resource occupied by the subband in a frequency domain. The number of block PRBs or the number of consecutive resource blocks RB.
  32. 根据权利要求30或31所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 30 or 31, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and each of the remaining The number of subbands in the subband group is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
  33. 根据权利要求30或31所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 30 or 31, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中， p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is less than or equal to 2*p, and each of the remaining The number of subbands in the subband group is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. Continuous bits.
  34. 根据权利要求30或31所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；The method according to claim 30 or 31, wherein the number of bits in the first bit interval is 2N, and N is a positive integer, and the sequence of the transmission precoding matrix of each of the subband groups occupies the Two consecutive bits of the first bit interval;
    当n≤N时，每一个所述子带组中的子带数目为1个；When n ≤ N, the number of sub-bands in each of the sub-band groups is one;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0, the number of the subband groups is N, and N The number of sub-bands included in the sub-band group is any two or three of p, 2*p, and (p+1+(n-1) mod p).
  35. 根据权利要求34所述的方法，其特征在于，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：The method according to claim 34, wherein when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, each subband group includes a sub The number of bands is determined by:
    为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。After allocating p subbands for each of the N subband groups, the remaining n-pN subbands in the n subbands are sequentially in the order of the subband group numbers from small to large or from large to small. The band group allocates p sub-bands until the n-pN sub-bands are allocated.
  36. 一种基站，其特征在于，包括：处理器和收发器；A base station, comprising: a processor and a transceiver;
    所述处理器用于：确定向终端发送的下行控制信息，所述下行控制信息中包括第一比特区间，所述第一比特区间的比特位数固定，所述第一比特区间的比特用于指示子带组的发送预编码矩阵序号；其中，所述子带组包括一个或多个子带，且所述子带组中的子带数目基于上行资源调度所占用的子带数目动态调整；The processor is configured to: determine downlink control information that is sent to the terminal, where the downlink control information includes a first bit interval, where a bit number of the first bit interval is fixed, and a bit of the first bit interval is used to indicate a transmission precoding matrix sequence number of the subband group; wherein the subband group includes one or more subbands, and the number of subbands in the subband group is dynamically adjusted based on the number of subbands occupied by the uplink resource scheduling;
    所述收发器用于：向终端发送所述下行控制信息，所述下行控制信息用于指示所述终端根据所述下行控制信息，获取所述预编码矩阵序号对应的预编码矩阵子集，以及根据所述预编码矩阵子集，确定在所述上行资源调度所占用的子带上进行上行数据传输的预编码矩阵。The transceiver is configured to: send the downlink control information to a terminal, where the downlink control information is used to instruct the terminal to acquire, according to the downlink control information, a precoding matrix subset corresponding to the precoding matrix sequence number, and according to the The precoding matrix subset determines a precoding matrix for performing uplink data transmission on a subband occupied by the uplink resource scheduling.
  37. 根据权利要求36所述的方法，其特征在于，所述子带的宽度根据所述终端被配置的***带宽确定，所述子带的宽度为所述子带在频域上占用的连续物理资源块PRB个数或者连续资源块RB个数。The method according to claim 36, wherein the width of the subband is determined according to a system bandwidth in which the terminal is configured, and the width of the subband is a continuous physical resource occupied by the subband in a frequency domain. The number of block PRBs or the number of consecutive resource blocks RB.
  38. 根据权利要求36或37所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 36 or 37, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个子带组中的子带数目为小于或等于p个，其余的每个所述子带组中的子带数目为p个，其中，p＝2 k，k≥0；且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的1个比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one subband group is less than or equal to p, and each of the remaining The number of subbands in the subband group is p, where p=2 k , k≥0; and the transmission precoding matrix sequence number of each of the subband groups occupies 1 bit of the first bit interval.
  39. 根据权利要求36或37所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数；The method according to claim 36 or 37, wherein the number of bits in the first bit interval is 2N, and N is a positive integer;
    当所述上行资源调度所占用的子带数目n满足n≤N时，每一个所述子带组中的子带数目为1个，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连 续比特；When the number n of subbands occupied by the uplink resource scheduling satisfies n ≤ N, the number of subbands in each of the subband groups is one, and the sequence of the precoding matrix of each of the subband groups occupies Two consecutive bits of the first bit interval;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中一个所述子带组中的子带数目小于或等于2*p，其余的每个所述子带组中的子带数目为2*p个，其中，p＝2 k，k≥0，且每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, the number of subbands in one of the subband groups is less than or equal to 2*p, and each of the remaining The number of subbands in the subband group is 2*p, where p=2 k , k≥0, and the transmission precoding matrix sequence number of each of the subband groups occupies two of the first bit intervals. Continuous bits.
  40. 根据权利要求36或37所述的方法，其特征在于，所述第一比特区间的比特个数为2N个，N为正整数，每一个所述子带组的发送预编码矩阵序号占用所述第一比特区间的两个连续比特；The method according to claim 36 or 37, wherein the number of bits in the first bit interval is 2N, N is a positive integer, and the sequence of the transmission precoding matrix of each of the subband groups occupies the Two consecutive bits of the first bit interval;
    当n≤N时，每一个所述子带组中的子带数目为1个；When n ≤ N, the number of sub-bands in each of the sub-band groups is one;
    当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，其中，p＝2 k，k≥0，所述子带组的数目为N，且N个所述子带组所包括的子带数目为p、2*p和(p+1+(n-1)mod p)中的任意两个或三个。 When the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, where p=2 k , k≥0, the number of the subband groups is N, and N The number of sub-bands included in the sub-band group is any two or three of p, 2*p, and (p+1+(n-1) mod p).
  41. 根据权利要求40所述的方法，其特征在于，当所述上行资源调度所占用的子带数目n满足p*N＜n≤2*p*N时，每个所述子带组包括的子带数目通过以下方式确定：The method according to claim 40, wherein when the number n of subbands occupied by the uplink resource scheduling satisfies p*N<n≤2*p*N, each subband group includes a sub The number of bands is determined by:
    为N个所述子带组中的每个分配p个子带后，将n子带中剩余的n-pN个子带，按照子带组序号从小到大或从大到小的次序依次为每个子带组分配p个子带，直至所述n-pN个子带被分配完。After allocating p subbands for each of the N subband groups, the remaining n-pN subbands in the n subbands are sequentially in the order of the subband group numbers from small to large or from large to small. The band group allocates p sub-bands until the n-pN sub-bands are allocated.
  42. 一种电路***，其特征在于，所述电路***包括提供处理器功能的芯片或片上***，所述芯片或所述片上***被配置在终端中，使得所述终端实现权利要求1至15中任一项所述的方法；或者，所述芯片或所述片上***被配置在基站中，使得所述基站实现权利要求16至29中任一项所述的方法。A circuit system, characterized in that the circuit system comprises a chip or a system on chip providing a processor function, the chip or the system on chip being configured in a terminal such that the terminal implements any of claims 1 to 15 The method of any one of claims 16 to 29, wherein the chip or the system on chip is configured in a base station such that the base station implements the method of any one of claims 16 to 29.
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