WO2011079525A1 - 分配下行资源及实现下行数据接收的方法、装置 - Google Patents
分配下行资源及实现下行数据接收的方法、装置 Download PDFInfo
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- WO2011079525A1 WO2011079525A1 PCT/CN2010/002217 CN2010002217W WO2011079525A1 WO 2011079525 A1 WO2011079525 A1 WO 2011079525A1 CN 2010002217 W CN2010002217 W CN 2010002217W WO 2011079525 A1 WO2011079525 A1 WO 2011079525A1
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- 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 invention relates to the field of communications technologies, and in particular, to a method and apparatus for allocating downlink resources and implementing downlink data reception in a broadband evolution system.
- the specification defines a variety of different system bandwidths, as shown in Figure 1, where the channel bandwidth is the total bandwidth occupied by the system, and the transmission bandwidth is the physical.
- the layer can be used to transmit the effective bandwidth of the signal, in units of Resource Blocks (RBs).
- RBs Resource Blocks
- the DC subcarrier when the channel bandwidth is an even number of RBs, for example, 6 RB, 50 RB, 100 RB, the DC subcarrier is located at the intersection of the two central RBs; when the channel bandwidth is an odd number of RBs, iH- Kv 15 RB, 25 RB, 75 RB, the DC subcarrier is located at the center of the central RB. Since one RB in the LTE system consists of 12 subcarriers, the central RB has 6 subcarriers on each side of the DC subcarrier.
- the resources of multiple LTE member carriers need to be connected, and there are two ways: First, multiple consecutive LTE members are used.
- the carrier wave is aggregated to provide a larger transmission bandwidth for LTE-A.
- the second is to aggregate multiple discontinuous LTE member carriers to provide a larger transmission bandwidth for LTE-A.
- Figure 2 is a schematic diagram of member carrier wave polymerization, and Figure 2 shows an example of discontinuous member wave polymerization.
- the research orientation of the standardization organization is that the consensus on the design of the member carrier wave polymerization system is that the design of each member carrier wave is kept as consistent as possible with the LTE Rel-8 system, thereby ensuring that the terminal of the LTE Rel-8 system can be in each member.
- the planting wave works normally.
- the research requirements of the LTE-A system have been formulated, and the aggregation of the five member carriers is supported at the maximum, and one UE supports the transmission of data simultaneously on the five component carriers.
- the industry proposes a method of utilizing discrete frequency domain resources.
- the intermediate bandwidth is B 0 part, which is a Rel-8 compatible frequency domain resource part (Segment).
- the physical resources of the part may be jointly used by the LTE Rel-8 UE and the LTE-AUE; the frequency domain resource part on both sides, that is, the B-Bo part, is a non-compatible frequency domain resource part, and the physical resources of the part may be consecutive
- the frequency domain resource component can also be composed of multiple non-contiguous frequency domain resources.
- the extended channel bandwidth is part B, which satisfies the several bandwidth values given in Table 1.
- the Rel-8 compatible frequency domain resource part is extended, how to use the extended resource to enable the LTE-A terminal to normally access and use the Rel-8 compatible frequency domain resource part and non- Compatible with the physical resources of the frequency domain resource part is a problem that needs to be solved. Summary of the invention
- the embodiments of the present invention provide a method and a device for implementing downlink data reception in a broadband evolution system, which are used to implement downlink data reception in the case of a resource extension.
- the embodiments of the present invention provide a method and an apparatus for allocating downlink resources in a broadband evolution system, so as to implement resource allocation in the case of extending the resource of the carrier.
- the transmission bandwidth resource of the broadband evolving system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, and the transmission bandwidth resource is divided. For a plurality of frequency domain resource blocks, each frequency domain resource block corresponds to one resource block RB number, wherein the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources are numbered according to the numbering mode of the LTE system, and the number is determined by Rel.
- the frequency-numbered resource blocks corresponding to the non-compatible frequency-domain resources are sequentially numbered according to the maximum number corresponding to the -8-compatible frequency-domain resources, and the method further includes: the broadband-evolved terminal receives the RB number that is sent by the network side. After downlink control signaling, obtain The frequency domain resource block corresponding to the RB number in the downlink control signaling receives downlink data on the obtained frequency domain resource block.
- the transmission bandwidth resource of the broadband evolving system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, and the transmission bandwidth resource is divided. For a plurality of frequency domain resource blocks, each frequency domain resource block corresponds to one resource block RB number, wherein the frequency domain resource blocks are sequentially numbered in order from low frequency to high frequency.
- the method also includes:
- the broadband evolved terminal After receiving the downlink control signaling with the RB number sent by the network side, the broadband evolved terminal obtains the frequency domain resource block corresponding to the RB number in the downlink control signaling, and receives the downlink data on the obtained frequency domain resource block.
- the transmission bandwidth resource of the broadband evolving system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, and the transmission bandwidth resource is divided.
- each frequency domain resource block corresponds to one resource block RB number, wherein the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources are numbered according to the numbering mode of the LTE system, and are used as Rel -8
- the frequency-number resource blocks corresponding to the non-compatible frequency domain resources are sequentially numbered in sequence according to the maximum number corresponding to the frequency domain resources, and the method further includes:
- the RB number corresponding to the downlink frequency domain resource block allocated to the broadband evolved terminal is determined, and the determined RB number is sent to the broadband uplink terminal.
- the transmission bandwidth resource of the broadband evolving system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, and the transmission bandwidth resource is divided. For a plurality of frequency domain resource blocks, a resource block RB number is set for each frequency domain resource block, where the resource numbering manner for the broadband evolved terminal is sequentially numbered according to the lowest frequency, and is configured for the LTE terminal according to the LTE terminal. The numbering mode of the LTE system is numbered.
- the method further includes: The network side determines the type of the terminal to which the resource is to be allocated, and allocates the downlink frequency domain resource block to the terminal according to the type of the terminal.
- the allocated number is determined according to the numbering manner of the broadband evolved terminal.
- the number of the downlink frequency domain resource block is determined according to the numbering manner for the LTE terminal.
- the transmission bandwidth resource of the broadband evolution system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, where the apparatus includes:
- a storage unit configured to store the numbering mode information, where the numbering mode information is: dividing the transmission bandwidth resource into multiple frequency domain resource blocks, where each frequency domain resource block corresponds to one resource block RB number, where, according to the LTE system
- the numbering mode numbers the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources, and sequentially sequences the frequency domain resources corresponding to the non-compatible frequency domain resources based on the maximum number corresponding to the Rel-8 compatible frequency domain resources. Blocks are numbered sequentially;
- a first receiving unit configured to receive a downlink control signaling that is sent by the network side and includes an RB number
- the determining unit is configured to obtain a frequency domain corresponding to the RB number in the downlink control signaling by using the numbering mode information saved by the storage unit Resource block
- a second receiving unit configured to receive downlink data on the obtained frequency domain resource block.
- the transmission bandwidth resource of the broadband evolution system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, where the apparatus includes:
- a storage unit configured to store numbering mode information, where the numbering mode information is to divide the transmission bandwidth resource into multiple frequency domain resource blocks, and each frequency domain resource block corresponds to one resource block RB number, where The sequence of high frequencies sequentially numbers the frequency domain resource blocks;
- a first receiving unit configured to receive a downlink control signaling that is sent by the network side and includes an RB number
- the determining unit is configured to obtain a frequency domain corresponding to the RB number in the downlink control signaling by using the numbering mode information saved by the storage unit Resource block
- a second receiving unit configured to receive downlink data on the obtained frequency domain resource block.
- a device for allocating downlink resources in a broadband evolution system includes: Rd-8 compatible frequency domain resources and non-compatible frequency domain resources, and the device includes:
- a storage unit configured to store the numbering mode information, where the numbering mode information is: dividing the transmitted bandwidth resource into multiple frequency domain resource blocks, each frequency domain resource block corresponding to one resource block RB number, wherein, according to the LTE system The numbering mode numbers the frequency domain resource blocks corresponding to the Rd-8 compatible frequency domain resources, and sequentially sequences the frequency domain resources corresponding to the non-compatible frequency domain resources based on the maximum number corresponding to the Rel-8 compatible frequency domain resources. Blocks are numbered sequentially;
- an allocation unit configured to: when the downlink frequency domain resource block is allocated to the broadband evolved terminal, determine the RB number corresponding to the downlink frequency domain resource block allocated by the broadband evolved terminal by using the resource numbering mode information saved by the storage unit, and determine the RB number Sent to the broadband evolution terminal.
- a device for allocating downlink resources in a broadband evolving system where a transmission bandwidth resource of the broadband evolving system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, and the Rel-8 compatible frequency domain The resource is located in an intermediate frequency portion of the transmission bandwidth resource, and the apparatus includes:
- a storage unit configured to save the numbering mode information, where the numbering mode information is: dividing the transmission bandwidth resource into multiple frequency domain resource blocks, and setting a resource block RB number for each frequency domain resource block, where The numbering mode of the terminal is to sequentially number the frequency domain resource blocks from the lowest frequency, and number the LTE terminals according to the numbering mode of the LTE system;
- an allocation unit configured to determine a type of the terminal to which the resource to be allocated belongs, and to allocate a downlink frequency domain resource block to the terminal according to the type of the terminal, and if the terminal is a broadband evolved terminal, determine the location according to the numbering manner of the broadband evolved terminal. The number of the allocated downlink frequency domain resource block. If the terminal is an LTE terminal, the number of the allocated downlink frequency domain resource block is determined according to the numbering manner for the LTE terminal.
- the transmission bandwidth resource is divided into multiple frequency domain resource blocks, and one numbering manner that can be adopted is: each frequency domain resource block corresponds to one resource block RB number, where, according to the LTE system The numbering mode numbers the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources, and sequentially performs the frequency domain resource blocks corresponding to the non-compatible frequency domain resources based on the maximum number corresponding to the Rel-8 compatible frequency domain resources. Perform sequential numbering; resources and widths that can also be used for LTE terminals The resources used by the evolved terminal are numbered separately, and different terminals adopt different numbering methods.
- the frequency domain resource blocks of the transmission bandwidth are sequentially numbered in order from low frequency to high frequency, and for the LTE terminal, Numbering is performed using the numbering method of the original LTE system.
- the broadband evolved terminal After receiving the downlink control signaling that is sent by the network side and receiving the RB number, the broadband evolved terminal obtains the frequency domain resource block corresponding to the RB number in the downlink control signaling, and can receive the downlink data on the obtained frequency domain resource block.
- FIG. 1 is a schematic diagram of a plurality of different system bandwidths defined in an LTE Rel-8 system
- FIG. 3 is a schematic diagram of a method of utilizing discrete frequency domain resources
- FIG. 4 is a schematic flowchart of a method for receiving downlink data in an LTE-A system according to an embodiment of the present invention
- FIG. 5 is a schematic flowchart of a method for receiving downlink data in another LTE-A system according to an embodiment of the present invention
- FIG. 6 is a schematic flowchart of a method for allocating downlink resources in an LTE-A system according to an embodiment of the present invention
- FIG. 7 is a schematic flowchart of a method for allocating downlink resources in another LTE-A system according to an embodiment of the present invention.
- FIG. 8 is a schematic diagram of a correspondence between an RB number and a frequency domain resource block in a carrier wave resource expansion scheme according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of a correspondence between an RB number and a frequency domain resource block in another carrier resource expansion scheme according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of a correspondence between an RB number and a frequency domain resource block in another carrier resource expansion scheme according to an embodiment of the present invention.
- the transmission bandwidth resource of the broadband evolution system includes: a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, in order to implement downlink data reception in the case of the expansion of the carrier resource,
- the method for dividing the transmission bandwidth resource into multiple frequency domain resource blocks may be: numbering each frequency domain resource block corresponding to one resource block RB number, where
- the frequency domain resource blocks are sequentially numbered.
- the numbering method that can be used is: numbering the resources used by the LTE terminal and the resources used by the broadband evolved terminal respectively, and different terminals adopt different numbering methods for the broadband evolved terminal.
- the frequency domain resource blocks of the transmission bandwidth resource are sequentially numbered in order from low frequency to high frequency, and for the LTE terminal, the numbering method of the original LTE system is used for numbering.
- the broadband evolved terminal After receiving the downlink control signaling that is sent by the network side and receiving the RB number, the broadband evolved terminal obtains the frequency domain resource block corresponding to the RB number in the downlink control signaling, and can receive the downlink data on the obtained frequency domain resource block. .
- the broadband evolution system can be either an LTE-A system or another broadband system developed by the LTE system.
- the following is a description of the technical solution of the present invention by taking the broadband evolution system as an example of the LTE-A system.
- the method for receiving downlink data in the LTE-A system includes the following steps:
- Step 400 The transmission bandwidth resource of the LTE-A system including the Rel-8 compatible frequency domain resource and the non-compatible frequency domain resource is divided into multiple frequency domain resource blocks, and each frequency domain resource block corresponds to one resource block RB number, where
- the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources are numbered according to the numbering mode of the LTE system, and are corresponding to the non-compatible frequency domain resources according to the maximum number corresponding to the Rei-8 compatible frequency domain resources.
- the frequency domain resource blocks are sequentially numbered.
- the correspondence between the RB number and the frequency domain resource block may be set according to step 400.
- Step 401 After receiving the downlink control signaling that is sent by the network side and containing the RB number, the LTE-A terminal obtains the frequency domain resource block corresponding to the RB number in the downlink control signaling.
- Step 402 The LTE-A terminal receives downlink data on the obtained frequency domain resource block.
- the Rel-8 compatible frequency domain resource is located in an intermediate frequency portion of the transmission bandwidth resource, and is not compatible with the frequency domain resource. Located in the low frequency and/or high frequency portion of the transmit bandwidth resource.
- the Rel-8 compatible frequency domain resource is used.
- the corresponding maximum number is used as a reference, and the frequency domain resource blocks corresponding to the non-compatible frequency domain resources are sequentially numbered in sequence: the maximum number corresponding to the Rd-8 compatible frequency domain resource is used as a reference for the non-compatible frequency domain resources.
- the frequency domain resource blocks corresponding to the high frequency part are numbered in order from low frequency to high frequency, and then the non-compatible frequency domain is sequentially based on the maximum number of the frequency domain resource block corresponding to the high frequency part of the non-compatible frequency domain resource.
- the frequency domain resource blocks corresponding to the low frequency portion of the resource are numbered in order from low frequency to high frequency.
- the Rel-8 compatible frequency domain resource is used.
- the corresponding maximum number is used as a reference to sequentially sequence the frequency domain resource blocks corresponding to the non-compatible frequency domain resources, which can be implemented by: sequentially numbering the maximum frequency of the Rel-8 compatible frequency domain resources, and then The maximum number of frequency domain resource blocks corresponding to the low frequency part of the non-compatible frequency domain resource is the reference, and the frequency domain resource blocks corresponding to the high frequency part of the non-compatible frequency domain resource are sequentially numbered in order from low frequency to high frequency.
- the transmission bandwidth resource of the LTE-A system and the frequency domain resource block of the Rd-8 compatible frequency domain resource are the smallest, the transmission bandwidth resource of the LTE-A system is compatible with the Rel-8.
- the frequency domain resource blocks of the frequency domain resource are all odd, and all the bandwidth resources in the transmission bandwidth resource may be divided into multiple frequency domain resource blocks.
- the frequency domain resource block of the Rd-8 compatible frequency domain resource is an odd number, or the LTE-A system
- the frequency-domain resource block of the maximum bandwidth of the transmission bandwidth resource is an odd number
- the frequency-domain resource block of the maximum-divided frequency-domain resource of the Rel-8 compatible frequency domain resource is an even number, and part of the bandwidth resource in the transmission bandwidth resource may be divided into multiple frequencies. Domain resource block.
- the non-compatible frequency The domain resource is located in the low frequency and high frequency part of the transmission bandwidth resource, and the high frequency part and the low frequency part of the non-compatible frequency domain resource may respectively reserve a physical resource of half frequency domain resource block size according to the principle of symmetry, and will reserve The high frequency part and the low frequency part of the non-compatible frequency domain resource of the physical resource of the half frequency domain resource block size are respectively divided into frequency domain resource blocks, and the reserved physical resources are not transmitted by digital transmission.
- the high frequency portion of the non-compatible frequency domain resource may be The highest frequency reserves the physical resources of half the frequency domain resource block size, and reserves the physical resources of half the frequency domain resource block size from the lowest frequency in the low frequency part of the non-compatible frequency domain resource. It is also possible to reserve a physical resource of half the frequency domain resource block size from the lowest frequency in the high frequency part of the non-compatible frequency domain resource, and reserve a half frequency from the highest frequency in the low frequency part of the non-compatible frequency domain resource. The physical resource of the domain resource block size.
- Step 500 The transmission bandwidth resource of the LTE-A system including the Rei-8 compatible frequency domain resource and the non-compatible frequency domain resource is divided into multiple frequency domain resource blocks, and each frequency domain resource block corresponds to one resource block RB number, where , The frequency domain resource blocks are sequentially numbered in order from low frequency to high frequency. Specifically, the correspondence between the frequency domain resource block and the RB number may be set according to step 500, and the corresponding relationship is saved.
- Step 501 After receiving the downlink control signaling that is sent by the network side and including the RB number, the LTE-A terminal obtains the frequency domain resource block corresponding to the RB number in the downlink control signaling.
- Step 502 The LTE-A terminal receives downlink data on the obtained frequency domain resource block.
- step 500 if the transmission bandwidth resource of the LTE-A system and the maximum frequency domain resource block that can be divided by the Rel-8 compatible frequency domain resource are even, or the transmission bandwidth resource of the LTE-A system and Ild- 8
- the frequency domain resource blocks that are compatible with the maximum frequency domain resources are all odd, and all the bandwidth resources in the transmission bandwidth resources may be divided into multiple frequency domain resource blocks.
- the frequency domain resource block of the Rel-8 compatible frequency domain resource may be an odd number, or The frequency-domain resource block of the LTE-A system may be an odd number, and the frequency-domain resource block of the Rel-8 compatible frequency-domain resource may be evenly divided, and the part of the transmission bandwidth resource may be The bandwidth resource is divided into multiple frequency domain resource blocks.
- the high frequency part and the low frequency part of the non-compatible frequency domain resource respectively reserve half of the physical resources of the frequency domain resource block size according to the principle of symmetry, and half of the frequency domain resource block is reserved.
- the high frequency part and the low frequency part of the non-compatible frequency domain resource of the size physical resource are respectively divided into frequency domain resource blocks, and the reserved physical resources are not subjected to data transmission.
- the high frequency portion of the non-compatible frequency domain resource may be The highest frequency reserves the physical resources of half the frequency domain resource block size, and the physical resources of the half frequency domain resource block size are reserved from the lowest frequency in the low frequency part of the non-compatible frequency domain resource, and the non-compatible frequency can also be used.
- the method for allocating downlink resources in an LTE-A system includes the following steps: Step 600: Configuring a LTE-A system including Rel-8 compatible frequency domain resources and non-compatible frequency domain resources
- the transmission bandwidth resource is divided into a plurality of frequency domain resource blocks, and each frequency domain resource block corresponds to one resource block RB number, wherein the frequency domain resource block corresponding to the Rel-8 compatible frequency domain resource is performed according to the numbering mode of the LTE system.
- Step 601 When the network side allocates the downlink frequency domain resource block to the LTE-A terminal, determine the RB number corresponding to the downlink frequency domain resource block allocated by the LTE-A terminal, and send the determined RB number to the LTE-A terminal.
- the Rel-8 compatible frequency domain resource is located at an intermediate frequency portion of the transmission bandwidth resource, and the non-compatible frequency domain resource is located at a low frequency and/or high frequency portion of the transmission bandwidth resource.
- the maximum number corresponding to the Rel-8 compatible frequency domain resource is used.
- the sequential numbering of the frequency domain resource blocks corresponding to the non-compatible frequency domain resources may be implemented as follows: The high-frequency part of the non-compatible frequency domain resources is sequentially determined based on the maximum number corresponding to the Rel-8 compatible frequency domain resources. The corresponding frequency domain resource blocks are numbered in order from low frequency to high frequency, and then the maximum number of frequency domain resource blocks corresponding to the high frequency part of the non-compatible frequency domain resource is used as a reference, and the non-compatible frequency domain resources are sequentially sequenced.
- the corresponding frequency domain resource blocks are numbered in order from low frequency to high frequency. It can also be implemented by: sequentially numbering the maximum high frequency corresponding to the Rel-8 compatible frequency domain resource, and then using the maximum number of the frequency domain resource block corresponding to the non-compatible frequency domain resource.
- the frequency domain resource blocks corresponding to the high frequency portion of the non-compatible frequency domain resource are sequentially numbered in order from low frequency to high frequency.
- the transmission bandwidth resource of the LTE-A system and the frequency domain resource block of the Rel-8 compatible frequency domain resource are the smallest, the transmission bandwidth resource of the LTE-A system is compatible with the Rel-8 frequency domain.
- the frequency domain resource blocks with the largest possible resources are all odd, and all the bandwidth resources in the transmitted bandwidth resources are divided into multiple frequency domain resource blocks.
- the frequency domain resource block of the Rel-8 compatible frequency domain resource is an odd number, or the LTE-A system
- the frequency-domain resource block of the maximum bandwidth of the transmission bandwidth resource is an odd number
- the frequency-domain resource block of the maximum-divided frequency-domain resource is even-numbered
- the part of the bandwidth resource in the transmission bandwidth resource is divided into multiple frequency domains.
- Resource block. the high-frequency part and the low-frequency part of the non-compatible frequency domain resource respectively reserve half of the physical resources of the frequency domain resource block size according to the principle of symmetry, and the physical resources of the half frequency domain resource block size are reserved.
- the high frequency part and the low frequency part of the non-compatible frequency domain resource are respectively divided into frequency domain resource blocks, and the reserved physical resources are not transmitted.
- a physical resource of a half frequency domain resource block size is reserved from the highest frequency in the high frequency portion of the non-compatible frequency domain resource
- a physical resource of half the frequency domain resource block size is reserved from the lowest frequency in the low frequency portion of the non-compatible frequency domain resource.
- the network side needs to use the same numbering method to number the frequency domain resource blocks, thereby realizing the allocation of resources on the network side, and enabling the terminal side to correctly parse.
- the network side uses different numbering methods for different terminals. Different terminals can use a specific way to resolve resources allocated on the network side. Referring to FIG. 7, a method for allocating downlink resources in an LTE-A system according to an embodiment of the present invention is as follows:
- Step 700 Divide a transmission bandwidth resource including a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource of the LTE-A system into multiple frequency domain resource blocks, and set a resource block RB number for each frequency domain resource block, where The numbering mode for the LTE-A terminal is to sequentially number the frequency domain resource blocks from the lowest frequency, and number the LTE terminals according to the numbering mode of the LTE system.
- the numbering manner of the LTE system refer to 3GPP TS36.211 v900. .
- Step 701 The network side determines the type of the terminal to which the resource to be allocated belongs, and the downlink frequency domain resource block is allocated to the terminal according to the type of the terminal. If the terminal is an LTE-A terminal, step 702 is performed, if the terminal is LTE. The terminal performs step 703.
- Step 702 Determine the number of the allocated downlink frequency domain resource block according to the numbering manner for the LTE-A terminal.
- Step 703 Determine the number of the allocated downlink frequency domain resource block according to the numbering manner for the LTE terminal.
- step 700 if the transmission bandwidth resource of the LTE-A system and the frequency domain resource block of the Rel-8 compatible frequency domain resource are the smallest, the transmission bandwidth resource of the LTE-A system and the Rd- 8
- the frequency domain resource blocks that are compatible with the maximum frequency domain resources are all odd, and all the bandwidth resources in the transmission bandwidth resources are divided into multiple frequency domain resource blocks.
- the frequency domain resource block of the Rel-8 compatible frequency domain resource may be an odd number, or the LTE-A system.
- the frequency domain resource block with the largest transmittable bandwidth resource is an odd number, and the frequency domain resource block with the largest possible division of the Rel-8 compatible frequency domain resource is an even number, and then part of the bandwidth resource in the transmission bandwidth resource is divided into multiple Frequency domain resource block.
- the Rel-8 compatible frequency domain resource is located in an intermediate frequency portion of the transmission bandwidth resource, and the non-compatible frequency domain resource is located in the (frequency and high frequency portion) of the transmission bandwidth resource, a part of the bandwidth in the transmission bandwidth resource is used.
- the resource is divided into multiple frequency domain resource blocks, which can be implemented as follows: The high frequency part and the low frequency part of the non-compatible frequency domain resource respectively reserve half of the physical resources of the frequency domain resource block size according to the principle of symmetry, and half of the frequency is reserved.
- the high frequency part and the low frequency part of the non-compatible frequency domain resource of the physical resource of the domain resource block size are respectively divided into frequency domain resource blocks, and the reserved physical resources are not transmitted, for example: the high frequency part of the non-compatible frequency domain resource Reserve a physical resource of half the frequency domain resource block size from the highest frequency, and reserve a physical resource of half the frequency domain resource block size from the lowest frequency in the low frequency part of the non-compatible frequency domain resource.
- an embodiment of the present invention provides a receiving apparatus for downlink data in an LTE-A system, where a transmission bandwidth resource of the LTE-A system includes a Rel-8 compatible frequency domain resource and a non-compatible frequency.
- the domain resource, the device includes: a storage unit, a first receiving unit, a determining unit, and a second receiving unit.
- the storage unit is configured to save the numbering mode information, where the numbering mode information is: dividing the transmission bandwidth resource into multiple frequency domain resource blocks, where each frequency domain resource block corresponds to one resource block RB number, where, according to The numbering mode of the LTE system numbers the frequency domain resource blocks corresponding to the Rei-8 compatible frequency domain resources, and sequentially codes the frequency corresponding to the non-compatible frequency domain resources based on the maximum number corresponding to the Rel-8 compatible frequency domain resources.
- the domain resource block is sequentially numbered; the first receiving unit is configured to receive the downlink control signaling that is sent by the network side and includes the RB number; and the determining unit is configured to obtain the downlink control signaling by using the numbering mode information saved by the storage unit. a frequency domain resource block corresponding to the RB number; and a second receiving unit, configured to receive downlink data on the obtained frequency domain resource block.
- an embodiment of the present invention provides a downlink in an LTE-A system.
- a receiving device of the data the transmission bandwidth resource of the LTE-A system includes a Rel-8 compatible frequency domain resource and a non-compatible frequency domain resource, the device includes: a storage unit, a first receiving unit, a determining unit, and a second receiving unit,
- the storage unit is configured to store the numbering mode information, where the numbering mode information is to divide the transmission bandwidth resource into multiple frequency domain resource blocks, and each frequency domain resource block corresponds to one resource block RB number, where The sequence of the low frequency to the high frequency sequentially numbers the frequency domain resource blocks; the first receiving unit is configured to receive the downlink control signaling that is sent by the network side and includes the RB number; and the determining unit is configured to use the numbering information saved by the storage unit And obtaining a frequency domain resource block corresponding to the RB number in the downlink control signaling, where the second receiving unit is configured to receive downlink data on the obtained frequency domain resource block.
- the embodiment of the present invention provides a downlink resource allocation apparatus in an LTE-A system, where the LTE-A system transmits bandwidth resources including Rd-8 compatible frequency domain resources and is not compatible.
- the device includes: a storage unit and an allocation unit.
- the storage unit is configured to save the numbering mode information, where the numbering mode information is: dividing the transmission bandwidth resource into multiple frequency domain resource blocks, where each frequency domain resource block corresponds to one resource block RB number, where, according to The numbering mode of the LTE system numbers the frequency domain resource blocks corresponding to the Rel-8 compatible frequency domain resources, and sequentially codes the frequency corresponding to the non-compatible frequency domain resources based on the maximum number corresponding to the Rel-8 compatible frequency domain resources.
- the domain resource block is sequentially numbered; the allocation unit is configured to determine, by using the numbering mode information stored in the storage unit, the downlink frequency domain resource block allocated by the LTE-A terminal, when the downlink frequency domain resource block is allocated to the LTE-A terminal.
- the RB number is sent to the LTE-A terminal by the determined RB number.
- an embodiment of the present invention provides a downlink resource allocation apparatus in an LTE-A system, where the transmission bandwidth resource of the LTE-A system includes a Rel-8 compatible frequency domain resource and is not compatible.
- the device includes: a storage unit and an allocation unit.
- the storage unit is configured to save the numbering mode information, where the numbering mode information is: dividing the transmission bandwidth resource into multiple frequency domain resource blocks, and setting a resource block RB number for each frequency domain resource block, where The numbering mode of the LTE-A terminal is to perform the frequency domain resource block from the lowest frequency.
- the sequence number is assigned to the LTE terminal according to the numbering mode of the LTE system;
- the allocation unit is configured to determine the type of the terminal to which the resource to be allocated belongs, and allocate the downlink frequency domain resource block to the terminal according to the type of the terminal, if the terminal For the LTE-A terminal, the number of the allocated downlink frequency domain resource block is determined according to the numbering manner for the LTE-A terminal. If the terminal is an LTE terminal, the allocated downlink frequency domain is determined according to the numbering manner for the LTE terminal. The number of the resource block.
- the bandwidth of the Rd-8 compatible frequency domain resource is an even number of RBs, and after the resource is extended, the transmission bandwidth is also an even number of RBs; or, when the bandwidth of the Rel-8 compatible frequency domain resource is an odd number of RBs, and the resources are expanded
- the transmission bandwidth is also an odd number of RBs
- the RB boundary of the non-compatible frequency domain resource part is naturally aligned with the RB boundary of the Rel-8 compatible frequency domain resource part, and the extended DC carrier of the carrier wave and the original Rel- The DC subcarriers in the compatible frequency domain resource part are kept in the same position. At this time, there are two ways to number all the RBs in the system.
- Figure 8 shows four parts (a), (b), (c), (d), where part (a) is a 15 RB Rel-8 frequency domain resource; (b) part is a frequency domain of 15 RB
- the resource is extended to a representation of 25 RBs, where the numbering mode is sequential numbering; (c) is a schematic representation of the sequential numbering of the extended transmission bandwidth, where the Rd-8 is compatible with the frequency domain resource portion and the non-compatible frequency domain.
- the resource part is renumbered. In the LTE, A system, this number can be used for the LTE-A terminal.
- the original numbering method can be used for the LTE terminal, as shown in part (a);
- the Rd-8 compatible frequency domain resource part adopts the same numbering method as the original, and the non-compatible frequency domain resource part is numbered according to the maximum number of the Rel-8 compatible frequency domain resource part, and the figure shows The maximum number of the Rel-8 compatible frequency domain resource part is 14, and the sequence number of the high frequency part of the non-compatible frequency domain resource part can be continued by 14 as the reference, that is, the number is started from 15, and then the non-compatible frequency domain resource part is used.
- the low frequency parts are numbered sequentially.
- Example 1 For an LTE-A terminal, RBs in the entire transmission bandwidth are numbered sequentially from low frequency to high frequency using the numbering method shown in part (c).
- the RBs of the Rel-8 compatible frequency domain resource part are as follows. The way to number is to use the numbering method shown in part (a). In this case, the network side needs to save two numbering methods and work in the Rel-8 compatible frequency domain resource part.
- the LTE terminal and the LTE-A terminal understand the same RB as a different number. For example, the RB 5 that the LTE-A terminal understands is OB RB in the LTE terminal.
- Example 2 The numbering method shown in part (d) is used to first number the RBs of the Rel-8 compatible frequency domain resource part from low frequency to high frequency, and then number the RBs of the non-compatible frequency domain resource part.
- the LTE terminal working on the Rel-8 compatible frequency domain resource part and the LTE-A terminal have the same understanding of the RB number.
- the bandwidth of the Rel-8 compatible frequency domain resource is an even number of RBs, and the transmission bandwidth is an odd number of RBs after the resource is extended, or when the bandwidth of the Rel-8 compatible frequency domain resource is an odd number of RBs, and the resources are expanded.
- the transmission bandwidth is an even number of RBs
- the RB boundary of the non-compatible frequency domain resource part needs to translate 6 subcarriers (half RBs) to align with the RB boundary of the Rel-8 compatible frequency domain resource part.
- Figure 9 and Figure 10 show a schematic diagram of extending the 6 RB Rd-8 compatible frequency domain resource to the 15 RB transmission bandwidth, where part (a) is the numbering scheme of the Rel-8 compatible frequency domain resource, (b) Partially all RBs included in the extended transmission bandwidth, where all RBs are numbered sequentially.
- the DC subcarriers including the 6 RB frequency domain resources are located between the two central RBs, and the DC subcarriers including the 15 RB frequency domain resources are located at the center of the central RB, in order to ensure
- the LTE terminal understands that the physical resource location and the DC subcarrier position are unchanged, and the RB of the extended resource part needs to translate 6 subcarriers, thereby maintaining alignment with the Rel-8 compatible frequency domain resource portion, and specifically having two different translation modes.
- the RB boundary of the non-compatible frequency domain resource part on the high frequency side is shifted to the low frequency side by 6 subcarriers based on the central Rd-8 compatible frequency domain resource part, and the 6 subcarriers are reserved. Resources, no data transmission;
- the RB boundary of the non-compatible frequency domain resource part on the low frequency side is shifted to the high frequency side by 6 subcarriers, and the 6 subcarriers are used as pre- Leave resources, do not transfer data.
- the six sub-carriers reserved on both sides of the carrier wave are idle, which can be used as a system frequency protection band, or can transmit some special signals of the LTE-A system.
- the RB boundary of the non-compatible frequency domain resource portion on the high frequency side is shifted to the high frequency side by 6 subcarriers;
- the frequency-domain domain resource part is the reference, and the RB boundary of the non-compatible frequency domain resource part on the low-frequency side is shifted to the low-frequency side by 6 sub-carriers.
- there are 6 subcarriers between the two sides of the Rel-8 compatible frequency domain resource part and the non-compatible frequency domain resource part which can be used as a null carrier wave without any signal transmission, and can also transmit some LTE-A. Special signal for the system.
- the RBs in the entire transmission bandwidth are sequentially numbered from the low frequency to the high frequency.
- the LTE terminal working in the Rel-8 compatible frequency domain resource part and the LTE-A terminal will understand the same RB as different numbers.
- the RBs of the Rel-8 compatible frequency domain resource portion are numbered from the low frequency to the high frequency, and the RBs of the non-compatible frequency domain resource portion are numbered.
- the LTE terminal working on the Rel-8 compatible frequency domain resource part and the LTE-A terminal have the same understanding of the RB number.
- some signaling support is required, including the need for the base station to notify the LTE-A terminal of the bandwidth of the Rel-8 compatible frequency domain resource and the transmission bandwidth, etc., and the notification may adopt a cell broadcast manner.
- the physical resource location and definition of the compatible frequency domain resource part are guaranteed to be unchanged, and the physical resource boundary of the non-compatible frequency domain resource part is kept aligned with the same.
- the RB boundaries of the non-compatible frequency-domain resources are shifted by six sub-carriers.
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US13/519,828 US9031015B2 (en) | 2009-12-31 | 2010-12-30 | Method and device for allocating downlink resource and receiving downlink data |
EP10840315.5A EP2521321A4 (en) | 2009-12-31 | 2010-12-30 | METHOD AND DEVICE FOR ASSIGNING DOWNLINK RESOURCES AND IMPLEMENTING DOWNLINK DATA RECEPTION |
KR1020127020088A KR101495647B1 (ko) | 2009-12-31 | 2010-12-30 | 다운링크 자원의 할당 및 다운링크 데이터의 수신 방법 및 장치 |
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CN200910217503.3A CN102014444B (zh) | 2009-12-31 | 2009-12-31 | 分配下行资源及实现下行数据接收的方法、装置 |
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US (1) | US9031015B2 (zh) |
EP (1) | EP2521321A4 (zh) |
KR (1) | KR101495647B1 (zh) |
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WO (1) | WO2011079525A1 (zh) |
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CN101932098B (zh) * | 2009-01-06 | 2013-06-05 | 华为技术有限公司 | 资源分配方法、网络设备和无线*** |
CN103108394B (zh) * | 2011-11-15 | 2015-12-16 | 华为技术有限公司 | 一种扩展载波的资源配置方法、装置及*** |
CN103428859A (zh) * | 2012-05-16 | 2013-12-04 | 中兴通讯股份有限公司 | 下行信息传输方法、基站及用户设备 |
CN103944841B (zh) * | 2013-01-17 | 2017-03-08 | 展讯通信(上海)有限公司 | 正交频分复用***中信道估计方法及其装置 |
JP2014216698A (ja) * | 2013-04-23 | 2014-11-17 | ソニー株式会社 | 通信制御装置、通信制御方法、無線通信システム及び端末装置 |
CN106031230B (zh) * | 2015-01-27 | 2020-03-20 | 华为技术有限公司 | 一种确定资源块的方法、装置及*** |
US10863523B2 (en) | 2016-07-31 | 2020-12-08 | Yulong Computer Telecommunication Scientific (Shenzhen) Co., Ltd. | Method for instructing a user terminal to perform measurement and data interaction at a communication resource location outside of reserved frequency domain resource range, base station, user terminal, and computer-readable storage medium |
US10193727B1 (en) * | 2016-12-12 | 2019-01-29 | Sprint Spectrum L.P. | Selective muting of transmission of reference signals to reduce interference in a wireless network |
CN108513356B (zh) * | 2017-02-27 | 2020-01-07 | 维沃软件技术有限公司 | 一种资源分配指示方法、基站及终端 |
EP3982681A1 (en) * | 2017-03-24 | 2022-04-13 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Information sending method and apparatus, terminal, access network device and system |
CN117376990A (zh) | 2017-06-16 | 2024-01-09 | 韩国电子通信研究院 | 通信***中用于支持宽带载波的带宽设定方法 |
CN108882376B (zh) * | 2017-11-10 | 2020-01-17 | 华为技术有限公司 | 一种通信方法、装置以及*** |
US10469221B2 (en) | 2017-11-10 | 2019-11-05 | Huawei Technologies Co., Ltd. | Communication method, apparatus, and system |
CN109769300A (zh) | 2017-11-10 | 2019-05-17 | 华为技术有限公司 | 一种通信方法、装置以及*** |
CN117978331B (zh) * | 2024-03-28 | 2024-07-02 | 北京智芯微电子科技有限公司 | 发射方法、发射机与通信*** |
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- 2010-12-30 WO PCT/CN2010/002217 patent/WO2011079525A1/zh active Application Filing
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Publication number | Publication date |
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US9031015B2 (en) | 2015-05-12 |
KR101495647B1 (ko) | 2015-02-25 |
EP2521321A4 (en) | 2013-04-17 |
EP2521321A1 (en) | 2012-11-07 |
CN102014444A (zh) | 2011-04-13 |
KR20120110152A (ko) | 2012-10-09 |
CN102014444B (zh) | 2013-04-17 |
US20120294250A1 (en) | 2012-11-22 |
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