CN111586859B

CN111586859B - Resource allocation method and device

Info

Publication number: CN111586859B
Application number: CN201910118350.0A
Authority: CN
Inventors: 杨帆; 张兴炜; 王俊伟; 栗忠峰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-02-16
Filing date: 2019-02-16
Publication date: 2023-10-24
Anticipated expiration: 2039-02-16
Also published as: WO2020164496A1; CN111586859A

Abstract

The application provides a resource allocation method, which provides that a time-frequency resource used by terminal equipment for transmitting HARQ feedback information and/or CSI can be allocated through network equipment, and the terminal equipment can send request information to request the network equipment to allocate the time-frequency resource used for transmitting the HARQ feedback information and/or the CSI, wherein the HARQ feedback information and/or the CSI are transmitted by at least one terminal equipment in S terminal equipment to other terminal equipment in the S terminal equipment. In this way, the network device can configure corresponding time-frequency resources for the HARQ feedback information and/or the CSI based on the request information, thereby meeting the communication requirement of SL communication and reducing the time delay of SL feedback.

Description

Resource allocation method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for resource allocation in the field of communications.

Background

The direct communication between the terminal devices may be referred to as a Side Link (SL) communication, which does not pass through the network device. For example, the manner of communication in a vehicle networking system may be collectively referred to as V2X communication, where V represents a vehicle and X represents anything. Alternatively, the V2X communication may include: vehicle-to-vehicle (vehicle to vehicle, V2V), vehicle-to-roadside infrastructure (vehicle to infrastructure, V2I), vehicle-to-pedestrian communication (vehicle to pedestrian, V2P), or vehicle-to-network (vehicle to network, V2N), etc.

In SL communication, feedback control information (e.g., hybrid automatic repeat request (hybrid automatic repeat request, HARQ) feedback information, channel state information (channel state information, CSI)) can be transmitted between terminal devices, but how to configure time-frequency resources for these related information is a problem that needs to be discussed and solved by the current standard.

Disclosure of Invention

The application provides a resource allocation method, which proposes that a time-frequency resource used by terminal equipment for transmitting SL feedback control information (such as HARQ feedback information and/or CSI) can be allocated through network equipment, and the terminal equipment can send request information to request the network equipment to allocate the time-frequency resource for SL communication, thereby meeting the requirement of SL communication.

In a first aspect, a method for resource allocation is provided, the method comprising:

the network device receives request information from a first terminal device, the request information being used for requesting time-frequency resources for transmitting first information, the first information comprising: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

The network equipment determines a first time-frequency resource according to the request information, wherein the first time-frequency resource is used for transmitting the first information;

the network device sends downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices.

Therefore, in the method for configuring resources provided in the embodiment of the present application, in SL communication, generally, the network device cannot sense the behavior between the terminal devices (for example, the first information may include HARQ feedback information and/or CSI) from time to time, when the terminal device needs to send the first information, there is no time-frequency resource that may be used for transmitting the first information, in the embodiment of the present application, the terminal device (for example, the first terminal device) sends the time-frequency resource used for requesting to transmit the first information to the network device, so that the network device configures the corresponding time-frequency resource for the first information relatively timely based on the request information, which can meet the communication requirement of SL communication, and reduce the transmission delay of SL feedback.

Optionally, the request information is a first scheduling request SR, where the first SR is used to indicate a load size range of the first information and/or an information type of the first information, and the information type of the first information is used to indicate that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI.

Therefore, in the method for configuring the resources provided in the embodiment of the present application, the terminal device indicates the information type and/or the load size range of the first information through the SR, when the SR indicates the information type, the network device may estimate the load size range of the first information corresponding to the information type according to the information type, and when the SR indicates the load size range, the network device may determine the load size range of the first information according to the SR, so that the network device may determine the first time-frequency resource more accurately according to the finally obtained load size range of the first information, so as to avoid configuring more or less time-frequency resources for the first information, and improve accuracy of resource configuration.

Optionally, the first SR is configured to indicate a load size range of the first information or an information type of the first information, including:

The cyclic shift value of the first SR is used to indicate a load size range of the first information or an information type of the first information.

Therefore, in the method for configuring resources provided by the embodiment of the application, since the SRs can be sent in a sequence form, the problem of signaling overhead increased by additionally designing the SRs is avoided by adopting the cyclic shift value of the SR (for example, the first SR) to indicate the load size range or the information type of the first information, and the signaling overhead is effectively saved.

Optionally, the load size range of the first information belongs to at least one load size range, and the load size range in the at least one load size range corresponds to the resource sets in the resource set group one by one, wherein the resource set group comprises at least one resource set; or alternatively, the process may be performed,

the information type of the first information belongs to at least one information type, and the information type in the at least one information type is used for indicating that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI, and the information type in the at least one information type corresponds to a resource set in a resource set group, wherein the resource set group comprises at least one resource set;

The network device determines a first time-frequency resource according to the request information, and the method comprises the following steps:

and the network equipment determines a corresponding resource set from the resource set group according to the load size range of the first information or the information type of the first information, wherein the first time-frequency resource belongs to the corresponding resource set.

Therefore, by pre-configuring the corresponding at least one resource set for the load size range, in the case that the SR (e.g., the first SR) indicates the load size range, the method provided by the embodiment of the application can enable the network device to determine the time-frequency resource (e.g., the first time-frequency resource) for transmitting the first information from the resource sets of the load size range indicated by the corresponding SR in the existing at least one resource set more quickly, or by pre-configuring the corresponding at least one resource set for the information type, in the case that the SR (e.g., the first SR) indicates the information type, the network device can enable the network device to determine the time-frequency resource (e.g., the first time-frequency resource) for transmitting the first information from the resource sets of the information type indicated by the corresponding SR in the existing at least one resource set more quickly, so that the communication efficiency is effectively improved.

Optionally, the request information is a first buffer status report BSR, the first BSR includes an information type of the first information, the information type of the first information belongs to at least one information type, and an information type in the at least one information type is used to indicate that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI.

Therefore, in the method for configuring resources provided by the embodiment of the application, the terminal device indicates the information type of the first information through the BSR, the network device can estimate the load size range of the first information corresponding to the information type according to the information type, and the first time-frequency resource can be accurately determined according to the load size range of the first information, so that more or less time-frequency resources are prevented from being configured for the first information, and the accuracy of resource configuration is improved.

Optionally, the information type in the at least one information type corresponds to a resource set in a resource set group, wherein the resource set group comprises at least one resource set;

and the network equipment determines a corresponding resource set from the resource set group according to the information type of the first information, wherein the first time-frequency resource belongs to the corresponding resource set.

Therefore, by pre-configuring at least one corresponding resource set for the information type, the method provided by the embodiment of the application can enable the network equipment to determine the time-frequency resource (for example, the first time-frequency resource) for transmitting the first information from the resource set of the information type indicated by the corresponding BSR in the existing at least one resource set more quickly under the condition that the BSR (for example, the first BSR) indicates the information type, thereby effectively improving the communication efficiency.

Optionally, the request information is a first BSR;

the network equipment determines a load size range of the first information according to the first BSR;

the network equipment determines a corresponding resource set from a resource set group according to the load size range of the first information, wherein the first time-frequency resource belongs to the corresponding resource set;

the resource set group comprises at least one resource set, the load size range of the first information belongs to at least one load size range, and the load size range in the at least one load size range corresponds to the resource sets in the resource set group one by one.

Therefore, in the method for configuring resources provided by the embodiment of the present application, by pre-configuring at least one corresponding resource set for the load size range, in the case that the BSR (e.g., the first BSR) indicates the load size range, the network device can determine the time-frequency resource (e.g., the first time-frequency resource) used for transmitting the first information from the resource set of the load size range indicated by the corresponding BSR in the existing at least one resource set relatively quickly, thereby effectively improving the communication efficiency.

Optionally, in a case that the first information includes the HARQ feedback information, or in a case that the first information includes the HARQ feedback information and the CSI, the first BSR includes a type of HARQ codebook used by data corresponding to the HARQ feedback information, where the type of HARQ codebook is a semi-static codebook or a dynamic codebook;

the network device determining a load size range of the first information according to the first BSR, including:

and the network equipment determines the load size range of the HARQ feedback information according to the type of the HARQ codebook.

Optionally, in a case where the first information includes the CSI, or in a case where the first information includes the HARQ feedback information and the CSI, the first BSR indicates content of the CSI, the content of the CSI including at least one of: channel quality indication, CQI, precoding matrix, transmission order, transmission RI, channel state information reference signal resource, CRI, transmission layer number, reference signal received power, RSRP, or side link synchronization signal block resource, SSBRI;

The network device determining a load size range of the first information according to the BSR, including:

and the network equipment determines the load size range of the CSI according to the content of the CSI.

Optionally, in a case where the first information includes the HARQ information, or in a case where the first information includes the HARQ feedback information and the CSI, the first BSR further includes the number of HARQ codebooks; or alternatively, the process may be performed,

in case that the first information includes the CSI, or in case that the first information includes the HARQ feedback information and the CSI, the first BSR indicates a type of the CSI, wherein the type of the CSI includes: wideband CSI, or, subband CSI;

and the network equipment determines the load size range of the CSI according to the type of the CSI.

Optionally, the second terminal device is a terminal device with the largest RSRP among the S terminal devices; or alternatively, the first and second heat exchangers may be,

the second terminal equipment is the terminal equipment closest to the network equipment in the S terminal equipment;

the second terminal device is any one of the S terminal devices except the first terminal device.

Optionally, before the network device sends the downlink control information to the second terminal device, the method further includes:

the network device receives identification information for identifying the second terminal device from the first terminal device; or, the network device receives link identification information for identifying a link from the first terminal device, and the terminal device in the link includes the second terminal device.

Optionally, the method further comprises:

the network device receives resource release information from at least one terminal device in the S terminal devices, wherein the resource release information is used for indicating to release part or all of the time-frequency resources in the first time-frequency resources.

Therefore, in the method for configuring resources provided by the embodiment of the application, in SL communication, the terminal equipment can enable the network equipment to dynamically adjust the allocation and release of the time-frequency resources for transmitting the first information (such as HARQ feedback information and/or CSI) by sending the resource release information to the network equipment, thereby effectively improving the utilization rate of the resources.

Optionally, the resource release information is carried in a second SR, where a cyclic shift value of the second SR is used to indicate to release part or all of the time-frequency resources in the first time-frequency resources; or alternatively, the process may be performed,

The resource release information is carried in a second BSR.

In a second aspect, a method for configuring resources, the method comprising:

the network equipment receives request information from first terminal equipment, wherein the request information is used for requesting time-frequency resources for transmitting retransmission data packets of first data, the retransmission data packets of the first data are sent by one terminal equipment in S terminal equipment to other terminal equipment in the S terminal equipment, the S terminal equipment comprises the first terminal equipment, and S is an integer greater than 1;

the network equipment determines a first time-frequency resource according to the request information, wherein the first time-frequency resource is used for transmitting a retransmission data packet of the first data;

Therefore, in the method for configuring resources provided in the embodiment of the present application, in SL communication, generally, the network device cannot sense the behavior between the terminal devices (for example, when the terminal devices need to send the retransmission data, there is no time-frequency resource that can be used for transmitting the retransmission data) all the time (for example, when the terminal devices need to send the retransmission data, the terminal device (for example, the first terminal device) sends the time-frequency resource used for requesting to transmit the retransmission data to the network device, so that the network device configures the corresponding time-frequency resource (for example, the first time-frequency resource) for retransmitting the data more timely based on the request information, thereby meeting the communication requirement of SL communication and reducing the transmission delay of SL feedback.

Optionally, the request information is used for requesting a retransmission data packet for transmitting the first data, including:

the request information indicates that the requested time-frequency resource is used for retransmitting the first data;

optionally, the network device determines the time-frequency resource according to the request information, including:

the network device determines the first time-frequency resource according to the time-frequency resource used for primary transmission and/or retransmission of the first data.

Optionally, the request information is used for indicating the number M of data blocks included in the retransmission data packet of the first data, where M is a positive integer;

and the network equipment determines the first time-frequency resource according to the number M of the data blocks.

In a third aspect, a method of resource configuration is provided, the method comprising:

the network device receives request information from a first terminal device, the request information being used to request time-frequency resources for transmitting first information, the first information comprising any one of: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI, wherein the first information is sent by at least one terminal device in S terminal devices to other terminal devices in the S terminal devices, the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

The network equipment determines the first time-frequency resource according to the request information;

the network device sends downlink control information to a second terminal device, where the downlink control information includes information for indicating the first time-frequency resource, and the second terminal device is one of the S terminal devices.

Optionally, the request information is used to indicate an information type of the first information.

Optionally, the request information is an SR, or the request information is carried in an SR.

Optionally, the cyclic shift value of the request information is used to indicate an information type of the first information, where the information type of the first information is used to indicate that the first information is HARQ feedback information, or channel state information CSI, or HARQ feedback information and CSI.

Optionally, the request information is carried in a buffer status report BSR.

Optionally, the request information indicates that the information type of the first information is used to indicate that the first information is HARQ feedback information; and the network device determines the first time-frequency resource according to the request information, including:

the network equipment determines the first time-frequency resource from P resource sets, wherein the time-frequency resource in the P resource sets is used for transmitting the HARQ feedback information, and P is a positive integer; or alternatively, the first and second heat exchangers may be,

The request information indicates that the information type of the first information is used for indicating that the first information is CSI; and the network device determines the first time-frequency resource according to the request information, including:

the network equipment determines the first time-frequency resource from M resource sets, wherein the time-frequency resource in the M resource sets is used for transmitting the CSI, and M is a positive integer; or alternatively, the first and second heat exchangers may be,

the request information indicates the information type of the first information and is used for indicating that the first information is HARQ feedback information and CSI; and the network device determines the first time-frequency resource according to the request information, including:

the network device determines the first time-frequency resource from N resource sets, wherein the time-frequency resource in the N resource sets is used for transmitting the HARQ feedback information and the CSI, and N is a positive integer.

Optionally, the method further comprises:

the network device sends first resource configuration information to the S terminal devices through higher layer signaling or downlink control information, where the first resource configuration information is used to indicate the P resource sets, or the M resource sets, or the N resource sets.

Optionally, the request information is used to indicate a load size of the first information.

Optionally, the cyclic shift value of the request information is used to indicate a load size of the first information.

Optionally, the request information is carried in a BSR.

Optionally, in the case that the first information is the HARQ information, or in the case that the first information is the HARQ information and the CSI, the request information is specifically configured to indicate a type of HARQ codebook used by data corresponding to the HARQ feedback information, where the type of HARQ codebook is a semi-static codebook or a dynamic codebook.

Optionally, the request information is further used to indicate the number of HARQ codebooks.

Optionally, in a case where the first information is the CSI, or in a case where the first information is the HARQ feedback information and the CSI, the request information is further used to indicate content of the CSI, where the content of the CSI is used to determine a load size of the CSI.

Optionally, the request information is further used to indicate a type of the CSI, where the type of the CSI includes wideband CSI, or subband CSI.

Optionally, the network device determines the first time-frequency resource according to the request information, including:

the network equipment determines first time-frequency resources from Q resource sets according to the load size of the first information, the Q resource sets are in one-to-one correspondence with Q load size ranges, the first time-frequency resources belong to the first resource set in the Q resource sets, and the load size range of the first information is in the load size range corresponding to the first resource set.

Optionally, the method further comprises:

and the network equipment sends second resource configuration information to the S terminal equipment through high-layer signaling or downlink control information, wherein the second resource configuration information is used for indicating the Q resource sets.

Optionally, the second terminal device is a terminal device with the maximum reference signal received power RSRP among the S terminal devices; or alternatively, the first and second heat exchangers may be,

the second terminal device is the terminal device closest to the network device in the S terminal devices.

Optionally, the method further comprises:

the network device receives resource release indication information from at least one terminal device, where the resource release indication information is used to indicate to release part or all of the time-frequency resources in the first time-frequency resources, and the at least one terminal device belongs to the S terminal devices.

Optionally, the resource release indication information is an SR, and a cyclic shift value of the resource release indication information is used to indicate that part or all of the time-frequency resources in the first time-frequency resource are released.

Optionally, the resource release indication information is carried in a BSR.

In a fourth aspect, a method for resource allocation is provided, the method comprising:

the first terminal device generates request information, where the request information is used to request time-frequency resources for transmitting first information, and the first information includes: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

The first terminal device sends the request information to the network device.

the information type of the first information belongs to at least one information type, and the information type in the at least one information type is used for indicating that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI, and the information type in the at least one information type corresponds to a resource set in a resource set group, where the resource set group includes at least one resource set.

Optionally, the request information is a first buffer status report BSR, the first BSR includes an information type of the first information, the information type of the first information belongs to at least one information type, and an information type in the at least one information type is used to indicate that the first information is the HARQ feedback information, the CSI, or the HARQ feedback information and the CSI.

Optionally, the information type of the at least one information type corresponds to a resource set of a resource set group, wherein the resource set group includes at least one resource set.

Optionally, the request information is a first BSR;

in the case that the first information includes the HARQ feedback information, or in the case that the first information includes the HARQ feedback information and the CSI, the first BSR includes a type of HARQ codebook used by data corresponding to the HARQ feedback information, where the type of HARQ codebook is a semi-static codebook or a dynamic codebook.

Optionally, the request information is a first BSR;

in case that the first information includes the CSI, or in case that the first information includes the HARQ feedback information and the CSI, the first BSR indicates contents of the CSI including at least one of: channel quality indicator CQI, or precoding matrix indicator PMI, or transmission order indicator RI, or channel state information reference signal resource indicator CRI, or transmission layer number indicator LI, or reference signal received power RSRP, or side link synchronization signal block resource indicator SSBRI.

in case that the first information includes the CSI, or in case that the first information includes the HARQ feedback information and the CSI, the first BSR indicates a type of the CSI, wherein the type of the CSI includes: wideband CSI, or subband CSI.

Optionally, the method further comprises:

the first terminal equipment receives downlink control information from the network equipment, wherein the downlink control information is used for indicating first time-frequency resources, and the first time-frequency resources are used for transmitting the first information.

Optionally, the method further comprises:

and the first terminal equipment sends resource release information to the network equipment, wherein the resource release information is used for indicating to release part or all of the time-frequency resources in the first time-frequency resources.

The resource release information is carried in a second BSR.

In a fifth aspect, a method of resource configuration is provided, the method comprising:

the method comprises the steps that a first terminal device generates receiving request information, wherein the request information is used for requesting time-frequency resources for transmitting retransmission data packets of first data, the retransmission data packets of the first data are sent by one terminal device in S terminal devices to other terminal devices in the S terminal devices, the S terminal devices comprise the first terminal device, and S is an integer larger than 1;

the first terminal device sends the request information to a network device.

Optionally, the first terminal device receives downlink control information from the network device, where the downlink control information is used to indicate a first time-frequency resource, and the first time-frequency resource is used to transmit a retransmission data packet of the first data.

In a sixth aspect, a method of resource configuration is provided, the method comprising:

the first terminal device generates request information, wherein the request information is used for requesting time-frequency resources for transmitting first information, and the first information comprises any one of the following items: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI, wherein the first information is sent by at least one terminal device in S terminal devices to other terminal devices in the S terminal devices, the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

The first terminal device sends the request information to a network device.

Optionally, the request information is carried in a buffer status report BSR.

Optionally, the request information indicates that the information type of the first information is used for indicating that the first information is HARQ feedback information, where the HARQ feedback information corresponds to P resource sets, and time-frequency resources of the P resource sets are used for transmitting the HARQ feedback information, and P is a positive integer; or alternatively, the first and second heat exchangers may be,

the request information indicates that the information type of the first information is used for indicating that the first information is CSI, the CSI corresponds to time-frequency resources of M resource sets, which are used for transmitting the CSI, and M is a positive integer; or alternatively, the first and second heat exchangers may be,

the request information indicates that the information type of the first information is used for indicating that the first information is HARQ feedback information and CSI, the HARQ feedback information and the CSI correspond to N resource sets, time-frequency resources in the N resource sets are used for transmitting the HARQ feedback information and the CSI, and N is a positive integer.

Optionally, the method further comprises:

the first terminal device receives first resource configuration information from a network device, where the first resource configuration information is used to indicate the P resource sets, or the M resource sets, or the N resource sets.

Optionally, the request information is carried in a BSR.

Optionally, the method further comprises:

the first terminal device receives identification information for identifying a second terminal device from the network device, wherein the second terminal device belongs to the S terminal devices; or alternatively, the first and second heat exchangers may be,

the first terminal device receives link identification information for identifying a link from the network device, and the terminal devices in the link include a second terminal device, and the second terminal device belongs to the S terminal devices.

Optionally, the method further comprises:

and the first terminal equipment sends resource release indication information to the network equipment, wherein the resource release indication information is used for indicating to release part or all of the time-frequency resources in the first time-frequency resources.

Optionally, the resource release indication information is carried in a BSR.

A seventh aspect provides an apparatus for resource allocation for performing the method in any of the possible implementations of the first to third aspects. In particular, the apparatus comprises means for performing the method in any one of the possible implementations of the first aspect to the third aspect described above.

An eighth aspect provides an apparatus for resource allocation for performing the method of any of the possible implementations of the fourth to sixth aspects. In particular, the apparatus comprises means for performing the method in any one of the possible implementations of the fourth to sixth aspects described above.

In a ninth aspect, there is provided an apparatus for resource allocation, the apparatus comprising: a transceiver, a memory, and a processor. Wherein the transceiver, the memory and the processor are in communication with each other via an internal connection path, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory, to control the receiver to receive signals and to control the transmitter to transmit signals, and when the processor executes the instructions stored by the memory, to cause the processor to perform the method in any one of the possible implementations of the first aspect to the third aspect.

In a tenth aspect, there is provided an apparatus for resource allocation, the apparatus comprising: a transceiver, a memory, and a processor. Wherein the transceiver, the memory and the processor are in communication with each other via an internal connection path, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory, to control the receiver to receive signals and control the transmitter to transmit signals, and when the processor executes the instructions stored by the memory, to cause the processor to perform the method in any one of the possible implementation manners of the fourth aspect to the sixth aspect.

In an eleventh aspect, there is provided a computer program product comprising: computer program code which, when run by a computer, causes the computer to perform the methods of the above aspects.

In a twelfth aspect, a computer readable medium is provided for storing a computer program comprising instructions for performing the methods of the above aspects.

In a thirteenth aspect, there is provided a chip comprising a processor for calling from a memory and executing instructions stored in said memory, to cause a communication device on which said chip is mounted to perform the method of the above aspects.

In a fourteenth aspect, there is provided another chip comprising: the system comprises an input interface, an output interface, a processor and a memory, wherein the input interface, the output interface, the processor and the memory are connected through an internal connection path, the processor is used for executing codes in the memory, and when the codes are executed, the processor is used for executing the method in each aspect.

Drawings

Fig. 1 is a schematic diagram of an architecture of a mobile communication system suitable for use in an embodiment of the present application.

Fig. 2 is a schematic diagram of the relationship of PSSCH and PSCCH according to an embodiment of the present application.

Fig. 3 to 8 are schematic interaction diagrams of a method of resource allocation according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of an apparatus for resource allocation according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of an apparatus for resource allocation according to an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

In embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c can be single or multiple. "A belongs to B" may mean that A is a subset of B, or that A has the same content as B. "A includes B" may mean that B is a subset of A, or that A has the same content as B.

In the embodiment of the application, for a technical feature, the technical features of the technical feature are distinguished by a first, a second, a third, a, B, a C, a D and the like, and the technical features described by the first, the second, the third, the a, the B, the C, the D are not in sequence or in order of magnitude.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, future fifth generation (5th generation,5G) system, or New Radio (NR), etc.

The terminal device in the embodiments of the present application may refer to a user device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., as embodiments of the present application are not limited in this respect.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved NodeB (eNB or eNodeB) in an LTE system, a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiment of the present application is not limited.

In the embodiment of the application, the terminal equipment or the network equipment comprises a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as the communication can be performed by the method provided according to the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, and for example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips, etc.), optical disks (e.g., compact disk, CD, digital versatile disk, digital versatile disc, DVD, etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory, EPROM), cards, sticks, or key drives, etc. Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a schematic diagram of an architecture of a mobile communication system suitable for use in an embodiment of the present application. As shown in fig. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (such as terminal device 130 and terminal device 140 in fig. 1), and in an embodiment of the present application, the radio access network device may be used as an example of a network device. The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or may integrate the functions of the core network device and the logic functions of the radio access network device on the same physical device, or may integrate the functions of part of the core network device and part of the radio access network device on one physical device. The terminal device may be fixed in position or may be movable. Fig. 1 is only a schematic diagram, and other network devices may be further included in the communication system, for example, a wireless relay device and a wireless backhaul device may also be included, which are not shown in fig. 1. The embodiment of the application does not limit the number of the core network equipment, the radio access network equipment and the terminal equipment included in the mobile communication system.

For ease of understanding, a brief description of the relevant terms related to the embodiments of the present application will be first provided.

Side Link (SL) communication

The direct communication between the terminal devices is called SL communication, which does not pass through the network device. For example, the manner of communication in a vehicle networking system may be collectively referred to as V2X communication, where V represents a vehicle and X represents anything. Alternatively, the V2X communication may include: vehicle-to-vehicle (vehicle to vehicle, V2V), vehicle-to-roadside infrastructure (vehicle to infrastructure, V2I), vehicle-to-pedestrian communication (vehicle to pedestrian, V2P), or vehicle-to-network (vehicle to network, V2N), etc.

Hybrid automatic repeat request (hybrid automatic repeat request, HARQ) feedback information

In SL communication, one terminal device (denoted as a transmitting terminal device) transmits data to at least one terminal device (each terminal device is denoted as a feedback terminal device), and the feedback terminal device transmits HARQ feedback information to the transmitting terminal device based on a reception condition of the data, so that the transmitting terminal device confirms the reception condition of the data by the feedback terminal device. In the embodiment of the present application, the HARQ feedback information includes Acknowledgement (ACK) and negative acknowledgement (negative acknowledgement, NACK), where ACK indicates that the feedback end terminal device successfully receives and decodes data sent by the transmitting end terminal device, NACK indicates that the feedback end terminal device does not successfully receive data sent by the transmitting end terminal device or does not successfully decode data sent by the transmitting end terminal device, or that NACK indicates that the feedback end terminal device fails to receive data sent by the transmitting end terminal device.

It should be noted that, the HARQ feedback information in the embodiment of the present application may also be referred to as HARQ-ACK information, where the HARQ-ACK information includes ACK and NACK, and the two descriptions may be replaced with each other.

The at least one terminal device (or at least one feedback terminal device) may be a terminal device in a unicast scenario, or may be a group of terminal devices performing multicast communication. In a unicast scenario, one terminal device sends data to another terminal device, which is a SL communication between two terminal devices, the at least one terminal device comprising one terminal device. In a group of terminal devices performing multicast communication, one terminal device may transmit data to a plurality of terminal devices, which is SL communication between two or more terminal devices, the at least one terminal device including the plurality of terminal devices.

Channel state information (channel state information, CSI)

In SL communication, a terminal device (similarly, may be referred to as a transmitting terminal device) transmits a reference signal to at least one terminal device (similarly, each terminal device may be referred to as a feedback terminal device), and the feedback terminal device performs channel state measurement based on the reference signal, generates channel state information CSI according to the measured channel state, and transmits the channel state information CSI to the transmitting terminal device. Similarly, the at least one terminal device may be a terminal device in a unicast scenario, or may be a group of terminal devices performing multicast communication, and the specific description may refer to the description related to the at least one terminal device in the HARQ feedback information, which is not repeated herein.

CSI is a generic term for a class of information representing channel state, and illustratively, CSI may include at least one of the following information: channel quality indication (channel quality Indicator, CQI), precoding matrix indication (precoding matrix indicator, PMI), transmission Rank Indication (RI), channel state information reference signal resource indication (CSI reference signal resource indicator, CRI), reference signal received power (reference signal receive power, RSRP), transmission layer number indication (LI), side link synchronization signal block resource indication (sidelink synchronization signal block Resource indicator, SSBRI).

Wherein, the CQI represents the information of channel quality obtained by the terminal equipment, the PMI represents the precoding matrix recommended by the terminal equipment, the RI represents the transmission order recommended by the terminal equipment, the RSRP represents the receiving power of the receiving reference signal of the terminal equipment, the CRI represents the indication information of the resource of the channel state reference signal, the LI represents the transmission layer recommended by the terminal equipment, and the SSBRI represents the resource indication information used by the synchronous signal resource block.

It should be understood that the HARQ feedback information and CSI may be collectively referred to as feedback control information, and the HARQ feedback information and CSI in the side link communication may be collectively referred to as side link feedback control information, so in the embodiment of the present application, the terminal device that sends the HARQ feedback information and sends the CSI is referred to as a feedback end terminal device. In other words, in the embodiment of the present application, the feedback control information may include at least one of HARQ feedback information and CSI. Illustratively, in SL communication, the feedback control information is referred to as side link feedback control information (sidelink feedback control information, SFCI). In addition, the feedback control information may be carried on a physical side link control channel (physical sidelink control channel, PSCCH) or a physical side link shared channel (physical sidelink shared channel, PSSCH) or a physical side link feedback control channel (physical sidelink feedback control channel, PSFCH). The relationship between PSSCH and PSCCH may be as shown in fig. 2, and generally, the PSCCH carries control information related to data transmission, and the PSSCH carries data.

Currently, in SL communication, terminal devices may communicate directly without a network device, where, in the case that the terminal devices may send and receive SL feedback control information (e.g., HARQ feedback information and/or CSI), how to configure time-frequency resources for these information is a problem that needs to be discussed and solved by the current standard.

In a side link mode one (mode 1) of a New Radio (NR) system, a time-frequency resource used by a terminal device to transmit SL feedback control information is configured in advance by a network device, and the terminal device may transmit request information to request the network device to configure the time-frequency resource for SL communication. Optionally, the request information may be specifically used to indicate an information type and/or a load size range of the SL feedback control information to be sent by the terminal device, so as to avoid that the network device configures excessive or insufficient time-frequency resources for the terminal device, and improve accuracy of resource configuration.

In addition, on the basis of configuring time-frequency resources for feedback control information by the network equipment, from the viewpoint of improving the resource utilization rate, the embodiment of the application also provides a resource configuration method, wherein the terminal equipment sends resource release information to the network equipment so as to instruct the network equipment to release the configured time-frequency resources for transmitting SL feedback control information, so that the network equipment can reasonably control the allocation and release of the time-frequency resources, and the resource utilization rate is effectively improved.

In addition, in SL communication, the terminal devices can retransmit the previous data, but how to reconfigure the time-frequency resources for retransmission is also a problem that needs to be discussed and solved by the current standards. Based on this, the embodiment of the application also provides that the time-frequency resource used by the retransmission data between the terminal devices in the SL communication can be configured by the network device, and the terminal device can send request information to request the network device to configure the time-frequency resource used for retransmitting the data. Alternatively, the request information may specifically indicate the time-frequency resource requested for retransmitting the data, or indicate a load size range of the retransmitted data packet.

In the embodiment of the present application, a method for configuring resources for a network device to transmit SL feedback control information for a terminal device is described with reference to fig. 3 and fig. 4, a method for releasing resources for a network device to transmit SL feedback control information for a terminal device is described with reference to fig. 5 and fig. 6, and a method for configuring resources for a network device to retransmit data is described with reference to fig. 7 and fig. 8.

In the following, first, with reference to fig. 3 and fig. 4, an embodiment of the network device configuring resources for transmitting SL feedback control information to the terminal device will be described in detail. In addition, for convenience of description, SL feedback control information may be noted as first information, and both descriptions may be replaced.

Fig. 3 and 4 are schematic interaction diagrams illustrating a method of resource allocation according to an embodiment of the present application. The method shown in fig. 3 includes steps S210 to S231, and the method shown in fig. 4 includes steps S210 to S232. In the embodiment of the present application, for convenience of description, a terminal device that sends request information is referred to as a first terminal device, and a terminal device that receives downlink control information is referred to as a second terminal device, where the first terminal device and the second terminal device may be the same terminal device or different terminal devices. The first terminal device or the second terminal device may be a transmitting terminal device or a feedback terminal device, where the transmitting terminal device is a terminal device transmitting data and/or reference signals, and the feedback terminal device is a terminal device receiving data and/or reference signals, or the feedback terminal device is a terminal device transmitting HARQ feedback information for data and/or CSI for reference signals. For descriptive understanding, fig. 3 shows a case where the first terminal device is the terminal device 1 shown in fig. 3 and the second terminal device is the terminal device 2 shown in fig. 3, and one of the terminal device 1 and the terminal device 2 may be a transmitting terminal device, and the other may be a feedback terminal device. Fig. 4 shows a case where the first terminal device and the second terminal device are the same terminal device, wherein both the first terminal device and the second terminal device are terminal device 1.

Next, each step in fig. 3 and 4 is explained.

In S210, the first terminal device transmits request information to the network device, the request information being used to request time-frequency resources for transmitting first information, the first information including: the method comprises the steps of mixing automatic retransmission request HARQ feedback information, or channel state information CSI, or HARQ feedback information and CSI, wherein the first information is sent by at least one terminal device in S terminal devices to other terminal devices in the S terminal devices, the S terminal devices comprise the first terminal device, and S is an integer larger than 1.

In S220, the network device determines a first time-frequency resource according to the request information, where the first time-frequency resource is used for transmitting the first information.

Here, the first terminal device may be a terminal device that performs unicast or a terminal device that performs multicast, which is not limited in the embodiment of the present application.

In the embodiment of the application, the number of S is related to a multicast or unicast scene. S can be equal to 2, in this case, S terminal devices can be terminal devices in a unicast scene, at least one terminal device is a terminal device sending first information in 2 terminal devices, or at least one terminal device is a feedback terminal device in 2 terminal devices, and other terminal devices are terminal devices receiving first information in 2 terminal devices, or other terminal devices are sending terminal devices in 2 terminal devices; s can be an integer greater than 2, in which case, S terminal devices can be a group of terminal devices that perform multicast communication, at least one terminal device is a plurality of terminal devices that send first information in the S terminal devices, or at least one terminal device is a plurality of feedback terminal devices in the S terminal devices, and other terminal devices are terminal devices that receive the first information in the S terminal devices, or other terminal devices are sending terminal devices in the S terminal devices. The first terminal device is one of the S terminal devices.

When S is an integer greater than 2, the terminal device that transmits the first information is a plurality of feedback terminal devices except for the transmitting terminal device of S terminal devices, and the first time-frequency resource is a time-frequency resource of the plurality of feedback terminal devices that transmits the first information, and time-frequency resources of any two feedback terminal devices that transmit the first information may be the same or different, which is not limited herein.

Alternatively, the request information may be a scheduling request (scheduling request, SR) or a buffer status report (buffer status report, BSR).

Specifically, the first terminal device may send request information for requesting time-frequency resources for transmitting the first information to the network device according to the requirement, and the network device configures the time-frequency resources (e.g., the first time-frequency resources) for transmitting the first information according to the request information. For example, if the first terminal device is a transmitting terminal device, the first terminal device may send request information to the network device after sending data and/or reference signals, to request time-frequency resources for receiving the first information (i.e. feedback control information); for another example, if the first terminal device is a feedback terminal device, the first terminal device may send request information to the network device after receiving the data and/or the reference signal, and request time-frequency resources for sending feedback control information, or the first terminal device may send request information to the network device before sending HARQ feedback information of the corresponding data and/or CSI of the corresponding reference signal.

Alternatively, the request information may be used to indicate an information type and/or a load size range of the first information.

The load size range of the first information may represent a size range of a number of bits that the first information may occupy, and the network device may determine a size of a time-frequency resource that needs to be allocated according to the load size range of the first information.

The information type of the first information is used to indicate that the first information is HARQ feedback information, or CSI, or both HARQ feedback information and CSI. For example, the information type may be indicated with 2 bits, and exemplary "00" indicates that the first information is HARQ feedback information, CSI with the first information indicated by "01" and HARQ feedback information and CSI with the first information indicated by "10".

In general, the load size range of the first information does not have a larger variation range like data, and the network device or the protocol can pre-configure the load sizes corresponding to different information types, so that the network device can estimate the load size range of the first information according to the information types, and therefore, the network device can determine the first time-frequency resource according to the information types of the first information.

A specific description of how the network device configures the first time-frequency resources may be referred to the relevant description below for specific content of the request information.

In S231 of fig. 3, the network device sends downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices. In this step S231, the second terminal device and the first terminal device are two terminal devices, the first terminal device being terminal device 1 and the second terminal device being terminal device 2.

In S232 of fig. 4, the network device sends downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices. In step S232, the second terminal device is the same terminal device as the first terminal device, and is terminal device 1.

In the embodiment of the present application, for convenience of distinction, the downlink control information for indicating the first time-frequency resource is denoted as first downlink control information.

The network device may also indicate the first time-frequency resource by other information (e.g., higher layer signaling), which may be radio resource control (radio resource control, RRC) signaling, for example.

In the embodiment of the present application, the network device may determine the second terminal device in two ways, in the mode 1, the network device may determine the second terminal device through signaling sent by the first terminal device, in the mode 2, the network device may determine the second terminal device through a preset rule, and the two ways are respectively described below.

Mode 1

In one possible implementation manner, before the network device sends the first downlink control information to the second terminal device, the method further includes:

the network device receives identification information for identifying the second terminal device from the first terminal device.

The identification information may be an identification of the second terminal device, which may be an identification that is only valid in the whole system, or the identification may be an identification that uniquely identifies the second terminal device, for example, an identification of the second terminal device, which may also be an identification that is valid in a group of terminal devices, for example, an identification in a group of terminal devices, for example, group 1 includes 3 terminal devices, respectively 1,2,3, and group 2 also includes 3 terminal devices, respectively 1,2,3, and the identifications of the terminal devices in the two groups are the same and valid only in the group.

Alternatively, the identifier of the second terminal device may be the identifier of the feedback terminal device, or alternatively, the identifier of the feedback terminal device may be referred to as a destination identifier (e.g., destination ID).

In another possible implementation manner, before the network device sends the first downlink control information to the second terminal device, the method further includes:

The network device receives link identification information from the first terminal device for identifying a link in which the terminal device comprises the second terminal device.

This implementation may be applicable in a unicast scenario, where the network device may determine the link through the link identification information, so that 2 terminal devices in the link may be determined, where the 2 terminal devices include a transmitting end terminal device and a feedback end terminal device, where the network device may determine the feedback end terminal device as the second terminal device if the system specifies or the protocol predefines that the first downlink control information is transmitted to the transmitting end terminal device, and where the network device may determine the transmitting end terminal device as the second terminal device if the system specifies or the protocol predefines that the first downlink control information is transmitted to the transmitting end terminal device.

By way of example and not limitation, the identification information or link identification information may be carried in the same information as the request information, e.g., both in the same BSR.

Mode 2

Optionally, the second terminal device is a terminal device with the largest RSRP among the S terminal devices.

That is, the network device determines the terminal device having the largest RSRP as the second terminal device by detecting the RSRP of each terminal device.

Optionally, the second terminal device is a terminal device closest to the network device among the S terminal devices.

The network device may determine the channel quality by using the RSRP of each terminal device, where the RSRP is generally large and the channel quality is good, and may indicate that the terminal device is close to the network device to a certain extent, the RSRP is small and the channel quality is poor and may indicate that the terminal device is far from the network device to a certain extent. The network device may also determine the distance of each terminal device from the network device by means of the location information of the terminal device, for example.

Optionally, the second terminal device is one terminal device other than the first terminal device of the S terminal devices.

In this embodiment of the present application, optionally, if the second terminal device is a transmitting terminal device, the second terminal device needs to send, to each of the other S terminal devices, indication information of a time-frequency resource for transmitting the first information according to the first downlink control information.

With continued reference to fig. 3, if s=2, the terminal device in fig. 3 includes the terminal device 1 and the terminal device 2, and assuming that the terminal device 2 is a transmitting terminal device and the terminal device 1 is a feedback terminal device, and the terminal device 2 receives the first downlink control information, in S241, the terminal device 2 may send the indication information for indicating the first time-frequency resource to the terminal device 1, so that the terminal device 1 sends the first information on the first time-frequency resource indicated by the first downlink control information.

With continued reference to fig. 3, if S is an integer greater than 2, and the terminal device in fig. 3 includes terminal device 1, terminal device 2, and terminal device 3, and if terminal device 2 is a transmitting terminal device, terminal device 1 is a feedback terminal device, and the other terminal devices are feedback terminal devices, then in S242, terminal device 2 needs to send, to each feedback terminal device, indication information of a time-frequency resource corresponding to the feedback terminal device according to the first time-frequency resource, where each feedback terminal device has a corresponding time-frequency resource for transmitting the first information, for example, terminal device 2 sends, to terminal device 3, indication information of a time-frequency resource corresponding to terminal device 3, and terminal device 2 sends, to terminal device 4, indication information of a time-frequency resource corresponding to terminal device 4. In a first possible implementation manner, the first downlink control information indicates a time-frequency resource corresponding to each feedback end terminal device, and the second terminal device sends, to each feedback end terminal device, indication information for indicating the time-frequency resource corresponding to each feedback end terminal device, so that each feedback end terminal device sends the first information on the corresponding time-frequency resource. In a second possible implementation manner, the first downlink control information indicates the first time-frequency resource, the terminal device 2 may configure a corresponding time-frequency resource for each feedback end terminal device in the S terminal devices, and the terminal device 2 sends the corresponding time-frequency resource of each feedback end terminal device to each feedback end terminal device through signaling, so that each feedback end terminal device sends the first information on the corresponding time-frequency resource.

With continued reference to fig. 4, S is an integer greater than 2, and the terminal device in fig. 4 includes a terminal device 1, a terminal device 2, and a terminal device 3, and the terminal device 1 is a transmitting terminal device, and the terminal device 2 and other terminal devices are feedback terminal devices, where in S243, the terminal device 1 needs to transmit, to each feedback terminal device, indication information of a time-frequency resource corresponding to the feedback terminal device according to a first time-frequency resource, where each feedback terminal device has a corresponding time-frequency resource for transmitting the first information. The specific description may refer to the related description of step S242 shown in fig. 3, and will not be repeated here.

As described above, the request information may be an SR or a BSR, and generally, the SR occupies a small number of bits, the BSR occupies a large number of bits, and due to the characteristics of the SR and the BSR, in practical design, the SR and the BSR may include contents that are different from each other, and therefore, the SR and the BSR are taken as examples respectively, and the process of determining the first time-frequency resource by the network device based on the request information will be described in detail below. In addition, for convenience of distinction, an SR for requesting the first time-frequency resource is denoted as a first SR, and a BSR for requesting the first time-frequency resource is denoted as a first BSR.

Optionally, the request information is a first scheduling request SR, where the first SR is used to indicate a load size range of the first information and/or an information type of the first information, and the information type of the first information is used to indicate that the first information is HARQ feedback information, or CSI, or HARQ feedback information and CSI.

Here, the first SR may be an SR (denoted as UL SR) of an Uplink (UR) for requesting uplink data, or a redesigned SR (denoted as SL SR) independent of the UL SR for requesting SL resources, wherein time-frequency resources used by the SL SR are independent, for example, time-frequency resources configured by the network device for transmitting the SL SR may be dedicated, and the SL SR may have a higher priority than the UL SR. Illustratively, the two types of SRs may be distinguished by distinguishing transmission resources. For example, the network device may configure time-frequency resources for transmitting the SL SR and for transmitting the UL SR through two RRC signaling, respectively, one RRC signaling configured for time-frequency resources for transmitting the SL SR and the other RRC signaling configured for time-frequency resources for transmitting the UL SR, and the network device may detect on the corresponding time-frequency resources, and consider that the UL SR is detected if the information is detected on the time-frequency resources for transmitting the UL SR, and consider that the SL SR is detected if the information is detected on the time-frequency resources for transmitting the SL SR.

Since the SRs may be transmitted in the form of a sequence, the load size range of the first information and/or the information type of the first information may be indicated by different cyclic shift values of the sequence from the viewpoint of saving signaling overhead.

Table 1 shows the correspondence between the cyclic shift values of the SR and the information types, and it can be seen that one cyclic shift value corresponds to one information type and that any two cyclic shift values correspond to different information types. Table 2 shows the correspondence between the cyclic shift values of the SR and the load size ranges, and it can be seen that one cyclic shift value corresponds to one load size range, and the load size ranges corresponding to any two cyclic shift values are different, where the N value in table 2 may be preconfigured or predefined by the network device, and the embodiment of the present application does not limit any limitation. The correspondence may include only part of the correspondence in tables 1 and 2.

It should be understood that the correspondence between the cyclic shift values of SRs and the corresponding information types shown in table 1 is only schematically illustrated, and the correspondence between the cyclic shift values of SRs and the corresponding load size ranges shown in table 2 is also only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 1

TABLE 2

The first SR is described in detail above, and a procedure in which the network device determines the first time-frequency resource based on the first SR is described below in two cases in which the first SR indicates the information type or the load size range of the first information, respectively.

If the first SR is used to indicate the information type of the first information, in general, the load size range of the first information will not have a larger variation range like the data, and the load size occupied by which type of information is used, and the network device or the protocol may be preconfigured in advance, so that the network device may estimate the load size range of the first information corresponding to the information type according to the information type, and therefore, the network device may determine the first time-frequency resource accurately according to the information type of the first information, so as to avoid configuring more or less time-frequency resources for the first information, and improve accuracy of resource configuration.

In the embodiment of the present application, in order to enable the network device to quickly configure the time-frequency resources for the terminal device based on the first SR, optionally, the network device may pre-configure at least one resource set for S terminal devices, and indicate the at least one resource set to each of the S terminal devices through signaling, where the signaling may be, for example, higher layer signaling or downlink control information, and the higher layer signaling may be RRC signaling, or at least one resource set may also be predefined. The at least one resource set corresponds to at least one information type, one resource set may correspond to one information type, and when the network device is preconfigured with a plurality of resource sets, at least one resource set of the plurality of resource sets may correspond to one information type. Wherein the at least one information type is used to indicate that the first information includes HARQ feedback information, or CSI, or both HARQ feedback information and CSI. The correspondence between the at least one resource set and the at least one information type may be predefined or configured by the network device.

In this way, the network device may determine, based on the information type of the first information indicated by the first SR, a first time-frequency resource from the preconfigured at least one set of resources, where the first time-frequency resource belongs to a set of resources corresponding to the information type of the first information.

For example, table 3 shows the correspondence between the information types and the resource sets, in table 3, set 0 corresponds to HARQ feedback information, set 1 corresponds to CSI, and Set 2 corresponds to HARQ feedback information and CSI.

It should be understood that the correspondence between the information types and the resource sets shown in table 3 is only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 3 Table 3

Information type	Resource collection
		(HARQ feedback information)	Set 0
(CSI)	Set 1
		(HARQ feedback information and CSI)	Set 2

In embodiments of the present application, a resource set group may be defined, which may include at least one resource set preconfigured by a network device. In this way, the network device may determine, from the resource set group, a corresponding resource set to which the first time-frequency resource belongs according to the information type of the first information indicated by the first SR. Here, the corresponding resource set represents a resource set corresponding to the information type of the first information.

In implementation, this step may occur before step S210 or before step S220 in the embodiments corresponding to fig. 3 and fig. 4, and is not limited herein, as long as it can be logically implemented.

The resource set will be described in detail below in connection with the information type.

Optionally, the network device is preconfigured with P resource sets, where the P resource sets include at least one resource set, each resource set is used for transmitting HARQ feedback information, and P is a positive integer.

That is, the P resource sets correspond to HARQ feedback information, and are dedicated to transmitting HARQ feedback information.

For example, if the protocol specifies that HARQ feedback information may be transmitted without transmitting CSI, in this case, the network device may configure only the P resource sets, and correspondingly, the first information includes HARQ feedback information, and the information type indicated by the first SR is also used to indicate that the first information is HARQ feedback information.

Optionally, the network device is preconfigured with M resource sets, where the M resource sets include at least one resource set, each resource set is used for transmitting CSI, and M is a positive integer.

That is, the corresponding CSI in the M resource sets is dedicated to transmitting CSI.

For example, if the protocol specifies that CSI can be transmitted without transmitting HARQ feedback information, in this case, the network device may configure only the P resource sets, and correspondingly, the first information includes CSI, and the information type indicated by the first SR is also used to indicate that the first information is CSI.

Optionally, the network device is preconfigured with N resource sets, where the N resource sets include at least one resource set, each resource set is used for transmitting HARQ feedback information and CSI, and N is a positive integer.

That is, the N resource sets correspond to CSI and HARQ feedback information, and are used to transmit CSI and HARQ feedback information.

For example, if the protocol specifies that HARQ feedback information and CSI may be transmitted, in this case, the network device may preconfigure the N resource sets, and correspondingly, the first information includes CSI and HARQ feedback information, and the information type indicated by the first SR is also used to indicate that the first information includes CSI and HARQ feedback information.

In this case, N resource sets may be used to transmit HARQ feedback information or CSI according to the configuration of the network device. For example, the first information includes HARQ feedback information, and the network device may also configure time-frequency resources for the HARQ feedback information based on the N resource sets. For another example, the first information includes CSI, and the network device may also configure time-frequency resources for CSI based on the N resource sets.

Optionally, the network device is preconfigured with P resource sets and M resource sets.

That is, the network device may configure the resource set for both HARQ feedback information and CSI. For example, if the protocol specifies that HARQ feedback information and CSI may be transmitted, but HARQ feedback information and CSI may not need to be transmitted on the same channel resource, in this case, the network device may configure P resource sets for HARQ feedback information and M resource sets for CSI, respectively, where the first information is CSI or HARQ feedback information.

Optionally, the network device is preconfigured with P resource sets, M resource sets, and N resource sets.

That is, the network device may configure the resource set for both HARQ feedback information and CSI. For example, if the protocol specifies that HARQ feedback information and CSI may be transmitted, HARQ feedback information and CSI may or may not be transmitted on the same channel resource. In this case, the network device may configure P resource sets for HARQ feedback information and M resource sets for CSI, so that HARQ feedback information and CSI are transmitted on different channel resources, respectively, and correspondingly, the first information is CSI or HARQ feedback information, or may configure N resource sets for HARQ feedback information and CSI, so that HARQ feedback information and CSI may be transmitted on the same channel resource, and correspondingly, the first information is CSI and HARQ feedback information.

By way of example and not limitation, a network device may also be preconfigured with P resource sets and N resource sets, or M resource sets and N resource sets.

As previously described, one information type may correspond to at least one resource set, and when one information type may correspond to a plurality of resource sets, each of the plurality of resource sets may correspond to one channel format, wherein the channel format may include a certain number of OFDM symbols, a number of PRBs, a pattern of DMRS, and whether frequency hopping is enabled. The channel format may relate to the traffic of the data transmitted by the terminal device, in particular, the time delay requirement of the traffic, the time length of the channel format is small, the time delay required for the data is short, for example, the traffic of the data may be high reliability low latency communication (ultra reliable and low latency communications, URLLC), the time length of the channel format is long, the time required for the data is prolonged, for example, the traffic of the data may be mass machine type communication (massive machine type communications, mctc). Assuming that 2 resource sets are all used for transmitting HQRQ feedback information, the time length of the channel format corresponding to the resource set 1 is 4 symbols, and can be used for transmitting HARQ feedback information of data with higher latency requirements, such as URLLC, and the like, and the time length of the channel format corresponding to the resource set 2 is 7 symbols, and can be used for transmitting HARQ feedback information of data with lower latency requirements, such as mctc, and the like. In this case, the terminal device may send a traffic type of the data to the network device, and the network device may further determine the first time-frequency resource based on the information type and the traffic type.

Alternatively, in the first resource set, each resource set may also correspond to a plurality of resources, each resource in the plurality of resources may correspond to a channel format, and similarly, the channel format may relate to a service of data sent by the terminal device, and for a specific description, reference may be made to the related description about the relationship between data and channel format. Assuming that one resource set is used for transmitting HQRQ feedback information, the resource set includes 2 resources, the time length of the channel format corresponding to the resource 1 is 4 symbols, and the resource set can be used for transmitting HARQ feedback information of data with higher time delay requirements, such as URLLC, and the like, and the time length of the channel format corresponding to the resource 2 is 7 symbols, and HARQ feedback information of data with lower time delay requirements, such as mctc, and the like, can be transmitted. In this case, the terminal device may send a traffic type of the data to the network device, and the network device may further determine the first time-frequency resource based on the information type and the traffic type.

If the first SR is used to indicate the load size range of the first information, the network device may determine the first time-frequency resource more accurately according to the load size range, so as to avoid configuring more or less time-frequency resources for the first information, and improve accuracy of resource configuration.

Similarly to the information type used by the first SR to indicate the first information, in order that the network device may quickly configure time-frequency resources for the terminal device based on the first SR, optionally, the network device may be preconfigured with Q resource sets for S terminal devices, and the Q resource sets are indicated to each of the S terminal devices by information, where the information may be higher layer signaling or downlink control information, the higher layer signaling may be RRC signaling, Q is a positive integer, and the Q resource sets may also be predefined. Among the Q resource sets, one resource set corresponds to one load size range, and optionally, the load size ranges corresponding to any two resource sets are different. In this way, the network device may determine, based on the load size range of the first information indicated by the first SR, a first time-frequency resource from the Q resource sets, where the first time-frequency resource belongs to a resource set corresponding to the load size range. The correspondence between the load size range and the resource set may be predefined or configured by the network device. In implementation, this step may occur before step S210 or before step S220 in the embodiments corresponding to fig. 3 and fig. 4, and is not limited herein, as long as it can be logically implemented.

In the embodiment of the present application, a resource set group may also be defined, where the resource set group may include at least one resource set preconfigured by the network device.

For example, table 4 shows the correspondence between the load size ranges and the resource sets, in table 4, the load size ranges corresponding to Set 0 are 1 to N1, the load size ranges corresponding to Set 1 are N1 to N2, and the load size ranges corresponding to Set 2 are N2 to N3.

It should be understood that the correspondence between the load size ranges and the resource sets shown in table 4 is only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 4 Table 4

Load size range	Resource collection
		(1～N1)	Set 0
(N1～N2)	Set 1
		(N2～N3)	Set 2

Similarly, in the case where the first SR is used to request a load size range, a resource set group may also be defined, where the resource set group may include Q resource sets preconfigured by the network device. In this way, the network device may determine, from at least one set of resources, a corresponding set of resources to which the first time-frequency resource belongs according to a load size range of the first information indicated by the first SR. Here, the corresponding resource set indicates a resource set corresponding to the load size range of the first information.

The above description has been made of the procedure in which the network device determines the first time-frequency resource based on the first SR by respectively indicating the information type or the load size range of the first information from the first SR, which may also indicate the information type and the load size range of the first information, alternatively, the network device may pre-configure the resource set corresponding to the information type and the resource set corresponding to the load size range, wherein the detailed description of how the first SR indicates the information type and the load size range, and how the network device configures the resource set and determines the first time-frequency resource may refer to the relevant description of the case in which the first SR is used to indicate the information type of the first information and the case in which the first SR is used to indicate the load size range of the first information, which will not be repeated herein.

The case where the request information is the first SR is described in detail above, and the case where the request information is the first BSR is described in detail below from 2 cases.

When the request information is the first BSR, the terminal device may send an SR (for convenience of distinction, denoted as a third SR) to the network device, so as to request the time-frequency resource used by the terminal device to transmit the first BSR, where the network device sends the configured time-frequency resource used to transmit the first BSR to the terminal device through scheduling information, and finally, the first terminal device sends the first BSR to the network device on the time-frequency resource indicated by the scheduling information. Here, the terminal device that transmits the third SR and the terminal device that receives the scheduling information may be the same terminal device, or may not be the same terminal device; the terminal device receiving the scheduling information and the terminal device sending the first BSR may be the same terminal device, or may not be the same terminal device, and when the terminal device is not the same terminal device, the terminal device receiving the scheduling information may send the scheduling information to the first terminal device, so that the first terminal device sends the first BSR.

In the embodiment of the present application, the third SR may be a UL SR or a SL SR, which is not limited herein. In addition, the first BSR may be a BSR used by the terminal device to request SL data resources, or may be a BSR used to request SL feedback resources (e.g., first time-frequency resources), which is not limited herein. Optionally, the request information is a first buffer status report BSR, the first BSR indicates an information type of the first information, and the information type of the first information is used to indicate that the first information is HARQ feedback information, CSI, or HARQ feedback information and CSI.

The specific description of determining the first time-frequency resource by the network device according to the information type of the first information may refer to the description of determining the first time-frequency resource by the network device according to the information type of the first information indicated by the first SR, which is not repeated herein.

Alternatively, the information type of the first information may be indicated by one indication field in the first BSR. Specifically, the information type of the first information is indicated by the bit value of the bit field.

Alternatively, an indication field may be added to the first BSR, where the indication field is used to indicate the information type of the first information.

Table 5 shows the correspondence of the bit values of the bit fields with the information types. As shown in table 5, one bit value corresponds to one information type, and any two bit values correspond to different information types.

It should be understood that the correspondence between the bit values and the information types of the S-bit fields shown in table 5 is only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 5

Bit value	Information type
		00	HARQ feedback information
01	CSI
		11	HARQ feedback information and CSI
10	Reservation

Similarly to the case where the first SR is used to indicate the information type of the first information described above, in case a, in order for the network device to rapidly configure time-frequency resources for the terminal devices based on the first BSR, the network device may optionally pre-configure at least one resource set for S terminal devices, the at least one resource set is indicated to each of the S terminal devices by information, which may be high-layer signaling or downlink control information, for example, the high-layer signaling may be RRC signaling. The specific description of the at least one resource set preconfigured by the network device may refer to the description of the at least one resource set preconfigured by the network device in the case that the first SR is used to indicate the information type of the first information, which is not repeated herein. In this way, the network device may determine, based on the information type of the first information indicated by the first BSR, a first time-frequency resource from the preconfigured at least one resource set, where the first time-frequency resource belongs to a resource set corresponding to the information type of the first information.

Therefore, in the method for configuring resources provided in the embodiment of the present application, the terminal device reports the information type of the first information through the BSR (e.g., the first BSR), and can determine a corresponding resource set according to the information type, and determine a time-frequency resource (e.g., the first time-frequency resource) for transmitting the first information in the corresponding resource set, so as to avoid configuring more or less time-frequency resources for the first information, so as to improve accuracy of resource configuration; on the other hand, the additional design of the BSR can be reduced, and the implementation complexity is reduced.

Optionally, the network device may determine a load size range of the first information according to the first BSR, and determine the first time-frequency resource according to the load size range of the first information.

Similarly to the case where the first SR is used to request the load size range described above, in order that the network device may quickly determine the first time-frequency resource based on the load size range, the network device may optionally be preconfigured with Q resource sets for S terminal devices, which are indicated to each of the S terminal devices by information, which may be higher layer signaling or downlink control information, which may be RRC signaling, Q being a positive integer of 1. For a specific description of Q resource sets preconfigured by the network device, reference may be made to the description of Q resource sets preconfigured by the network device in the case where the first SR is used to request the load size range, which is not repeated herein. In this way, the network device may determine, based on the determined load size range, a first time-frequency resource from the Q resource sets, where the first time-frequency resource belongs to a resource set corresponding to the load size range.

Hereinafter, based on the content of the first BSR, respective cases will be described in detail.

Optionally, when the first information is HARQ feedback information, the first BSR includes a type of HARQ codebook used for data corresponding to the HARQ feedback information, where the type of HARQ codebook is a semi-static codebook or a dynamic codebook;

the network device determines a load size range of the HARQ feedback information according to the type of the HARQ codebook.

For a semi-static codebook, the load size of HARQ feedback information of the semi-static codebook may be constant. For one HARQ feedback information, a certain time range may be corresponding to one or more time slots, where the number of time slots is configured by the network device, and the number of bits fed back for the time range is fixed. For example, the time range is 4 consecutive time slots: time slot n to time slot n +3 and the network device schedules the sidelink data at the granularity of one time slot, the semi-static codebook will contain fixed 4 bits, whether or not sidelink data is transmitted in that time slot. If the side link data is scheduled at the granularity of mini-slots, such as 7 mini-slots in one slot, then 4 slots will fix feedback 28-bit HARQ feedback information. In case the number of HARQ codebooks is known (e.g. the system specifies or agrees to predefine at least one data corresponding to feedback one HARQ codebook), the network device may determine the load size range of the HARQ feedback information in case it determines the type of the HARQ codebook as a semi-static codebook, since the load size of the HARQ feedback information of the semi-static codebook may be unchanged, and the first time-frequency resource is determined according to the load size range.

For the dynamic codebook, the load size of the HARQ feedback information of the dynamic codebook is dynamically changed, and the load size is related to data transmitted by the transmitting terminal equipment. And the feedback terminal feeds back corresponding HARQ bits when the feedback terminal receives one data transmitted by the transmitting terminal successfully. For example, the transmitting terminal transmits 2 TB side link data, and the feedback terminal feeds back according to the TB level, and needs to feed back 2-bit HARQ; if feedback is performed according to the CBG level, for example, 1 TB corresponds to 8 CBGs, the data of 2 TBs will correspond to the 16-bit HARQ feedback information fed back by the feedback terminal. The dynamic codebook corresponds to whether side link data is received or not, not to a time range. Since in the NR side link mode, the data resources of the side link are configured by the network device, in this case, the network device may learn how much of the HARQ feedback information needs to be fed back and determine the load size range of the HARQ feedback information of the dynamic codebook based on how much data, such as how many TB side link data, are configured with resources. In this way, in case the number of HARQ codebooks is known (e.g. the system provision or the protocol predefines feeding back at least one data corresponding to one HARQ codebook), the network device may determine a load size range of the HARQ feedback information, and determine the first time-frequency resource according to the load size range even for dynamic HARQ codebooks.

For example, the first BSR may further be configured to indicate a transmission unit (denoted as a data block) of data corresponding to the HARQ codebook, where the data block includes a Transport Block (TB) and a Code Block Group (CBG), and one TB may include a plurality of CBGs, and accordingly, feedback of the HARQ feedback information may be performed according to the data block at the TB level or the data block at the CBG level, and thus, the network device may further determine the load size range according to the transmission unit of the data corresponding to the HARQ codebook.

For example, if data of one TB needs to feed back 1-bit HARQ feedback information according to the TB level, the network device may configure one TB to correspond to multiple CBGs, for example, if the 1 TB includes 4 CBGs, then one TB needs to feed back 4-bit HARQ feedback information.

Illustratively, in an implementation, the transmission units of data may be predefined, e.g., all employ TB-level data blocks. Alternatively, the transmission unit of data may be semi-statically switched between, for example, TB and CBG, which is not limited herein.

The above manner can be well applied to feedback the data corresponding to one HARQ codebook at a time by the feedback end terminal device, in some cases, in order to reduce signaling interaction between the terminal devices, from the perspective of saving the time-frequency resources of SL, the feedback end terminal device can feedback the feedback information of multiple HARQ codebooks at a time, so optionally, in the case that the first information is the HARQ information, the first BSR further includes the number of the HARQ codebooks.

In this way, the network device may determine the load size range of the HARQ feedback information according to the type of the HARQ codebook and the number of HARQ codebooks, and determine the first time-frequency resource according to the load size range. For example, the type of the HARQ codebook is a semi-static codebook, the number of HARQ codebooks is 4, the data block of one HARQ codebook is a data block of TB level, and the load size of the HARQ feedback information corresponding to one TB is 1 bit, and then the load size of the HARQ feedback information corresponding to 4 HARQ codebooks is 4 bits, that is, the receiving condition of the feedback terminal device corresponding to the 4 HARQ codebooks may be indicated by using the 4-bit HARQ feedback information.

Therefore, according to the resource allocation method provided by the embodiment of the application, the terminal equipment reports the type of the HARQ codebook adopted by the data corresponding to the HARQ feedback information through the BSR (for example, the first BSR), so that the network equipment can estimate the load size range of the HARQ feedback information through the type of the HARQ codebook, and the time-frequency resource used for transmitting the HARQ feedback information can be accurately determined according to the load size range of the HARQ feedback information, thereby avoiding configuring more or less time-frequency resources for the HARQ feedback information and improving the accuracy of resource allocation; on the other hand, the additional design of SR can be reduced, and the implementation complexity is reduced.

Optionally, in the case that the first information is the CSI, the first BSR indicates content of the CSI, where the content of the CSI includes at least one of: CQI, or, PMI, or, RI, or, CRI, or, LI, or, RSRP, or SSBRI;

the network device determines a payload size range of the CSI based on the content of the CSI.

In this way, the network device may estimate the load size range of the CSI based on the content in the CSI. For a specific description of the content in CSI, reference may be made to the above description about CSI, which is not repeated here.

The content of the CSI may be indicated by a bit value of a bit field in the first BSR, for example. For example, the content of CSI may include CQI, or PMI, or RI, or RSRP, and 2 bits may be used to indicate the content of CSI, "00" indicates CQI, "01" indicates PMI, "10" indicates RI, "11" indicates RSRP.

The content of CSI may also be indicated by a bit map, for example. Setting a plurality of bits, each bit corresponding to one content of the CSI, each bit may have two bit values, wherein one bit value indicates that the content of the CSI of the corresponding bit exists, i.e., the first information includes the content of the CSI of the corresponding bit, and the other bit indicates that the content of the CSI of the corresponding bit does not exist, i.e., the first information does not include the content of the CSI of the corresponding bit. For example, the bit map shown in table 6 is related to the content of CSI. In table 6, illustratively, the content of CSI may include CQI, or PMI, or RI, or RSRP, the first bit indicates CQI, the second bit indicates PMI, the third bit indicates RI, and the fourth bit indicates RSRP, taking the first bit as an example, when the bit value is "0", the presence of CQI is indicated, the first information includes CQI, when the bit value is "1", the absence of CQI is indicated, and the first information does not include CQI.

It should be understood that the relationship between the bit map and the content of CSI shown in table 6 is only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 6

Bit value	First bit (CQI)	Second bit (PMI)	Third bit (RI)	Fourth bit (RSRP)
					1	Has the following components	Has the following components	Has the following components	Has the following components
0	Without any means for	Without any means for	Without any means for	Without any means for

In general, the CSI has multiple types of CSI, and in order to facilitate the network device to quickly identify the CSI, optionally, the first BSR is further configured to indicate the type of CSI, where the type of CSI includes at least one of the following: periodic CSI, or aperiodic CSI, or wideband CSI, or subband CSI. In this way, the network device can quickly determine the content of the CSI based on determining the type of CSI.

Wherein, the periodical CSI and the aperiodic CSI both represent the sending mode of the CSI, the periodical CSI represents periodical sending of the CSI, and the aperiodic CSI represents sending of the CSI only once; the wideband CSI and the subband CSI both represent the bandwidth size of the measurement channel, the subband CSI represents the result of channel measurement on one subband, the wideband CSI represents the average value of the measurement results of multiple subbands CSI, one wideband may include multiple subbands, and the specific number of subbands and the size of the subband bandwidth may be configured to the terminal device by the network device. For example, when the type of CSI configured by the network device is subband CSI, for each subband configured by the network device, the terminal device needs to feed back CSI; if the type of CSI is wideband CSI, the terminal device will feed back an average of the subband CSI of the multiple subbands configured by the base station.

Alternatively, the type of CSI may be indicated by means of a bit map. Illustratively, table 7 shows the relationship of bit map and CSI type. The first bit indicates whether the type of CSI is periodic CSI or aperiodic CSI, and the second bit indicates whether the type of CSI is subband CSI or wideband CSI. Taking the first bit as an example, when the bit value is "0", the type of CSI is indicated as periodic CSI, and when the bit value is "1", the type of CSI is indicated as aperiodic CSI.

It should be understood that the relationship between the bit map and the types of CSI shown in table 7 is only schematically illustrated, and should not be construed as limiting the embodiments of the present application.

TABLE 7

Bit value	First bit	Second bit
			0	Periodic CSI	Wideband CSI
1	Aperiodic CSI	Subband CSI

It should be noted that, since the payload sizes of CSI generated by the terminal device in the subband CSI and in the wideband CSI for measuring channel quality are different, when the type of CSI indicated by the first BSR includes the subband CSI or the wideband CSI, the subband CSI or the wideband CSI may also be used to determine the payload size range of the CSI. That is to say,

the network device determines a payload size range of the CSI according to the type of the CSI.

For example, the transmitting end terminal device may trigger configuration information for indicating the content of CSI, and, in the first BSR, indicate whether the CSI is subband CSI or wideband CSI, the feedback end terminal device may determine the payload size range of the CSI based on the content of CSI and the characteristics of whether the CSI is subband or wideband CSI.

For example, the first BSR may indicate not only the content of CSI but also whether CSI is subband CSI or wideband CSI, and the feedback end terminal device may determine the load size range of CSI based on the content of CSI in the first BSR and the characteristics of whether CSI is subband or wideband CSI.

Therefore, in the method for resource allocation provided by the embodiment of the application, the terminal equipment reports the specific content (for example, at least one of CQI, PMI, RI or RSRP) of the CSI through the BSR (for example, the first BSR), so that the network equipment estimates the load size range of the CSI through the CSI, and the time-frequency resource used for transmitting the CSI can be accurately determined according to the load size range of the CSI, thereby avoiding configuring more or less time-frequency resources for the CSI and improving the accuracy of resource allocation; on the other hand, the additional design of SR can be reduced, and the implementation complexity is reduced.

Optionally, in the case that the first information is the HARQ feedback information and the CSI, the first BSR indicates a content and a CSI of the CSI

The type of the HARQ codebook adopted by the data corresponding to the HARQ feedback information, wherein the content of the CSI includes at least one of the following: CQI, or PMI, or RI, or CRI, or LI, or RSRP, or SSBRI, the HARQ codebook type is a semi-static codebook or a dynamic codebook;

the network device determines a payload size range of the first information according to the content of the CSI and the type of HARQ codebook.

That is, the payload size range of the CSI may be determined according to the content of the CSI, and the payload size range of the HARQ feedback information may be determined according to the type of the HARQ codebook, thereby determining the payload size ranges of the CSI and the HARQ feedback information. For specific description of determining CSI according to the content of CSI, reference may be made to the above related description, and for brevity, description will not be repeated.

Optionally, the first BSR further includes a type of the CSI and a number of HARQ codebooks, wherein the type of the CSI includes at least one of: periodic CSI, or aperiodic CSI, or wideband CSI, or subband CSI.

For specific descriptions of the type of CSI and the number of HARQ codebooks, reference may be made to the above related descriptions, and the descriptions are not repeated here.

In the above, the process of configuring the time-frequency resource for the first information by the network device is described in detail, but conversely, the network device may also apply for the time-frequency resource configured for the first information before release based on various requirements, so that the resource utilization rate may be improved. For example, when the overall channel resources are relatively congested or the distance between the terminal devices is relatively long, the first information of the SL may be deactivated, and then the terminal device may also inform the network device to release the time-frequency resources for transmitting the first information. Next, a process of releasing the time-frequency resource for transmitting the first information will be described in detail with reference to fig. 5 and 6.

Fig. 5 and fig. 6 are interactive diagrams of resource allocation according to an embodiment of the present application, where the method shown in fig. 5 includes steps S310, S321, and S330, and the method shown in fig. 6 includes steps S310, S322, and S330.

In this embodiment, for convenience of description, the terminal device that receives the downlink control information is collectively referred to as a third terminal device, and in this embodiment of the present application, at least one terminal device that sends the resource release information may include the third terminal device, or may not include the third terminal device, and fig. 5 shows a case where at least one terminal device that sends the resource release information does not include the third terminal device, where the third terminal device is terminal device 1, one terminal device of the at least one terminal device is terminal device 2, and fig. 6 shows that at least one terminal device that sends the resource release information may include the third terminal device, where the third terminal device and the terminal device that sends the resource release information are terminal device 1.

In S310, the network device sends downlink control information to the third terminal device, where the downlink control information is used to indicate a first time-frequency resource used to transmit first information, and the first information includes: the method comprises the steps of mixing automatic retransmission request HARQ feedback information, or channel state information CSI, or HARQ feedback information and CSI, wherein the first information is sent by at least one terminal device in S terminal devices to other terminal devices in the S terminal devices, the S terminal devices comprise the first terminal device, and S is an integer larger than 1.

The third terminal device may be any one of the S terminal devices.

It should be noted that, the first time-frequency resource is not limited to the first time-frequency resource determined based on the embodiments corresponding to fig. 3 and fig. 4, but may be a time-frequency resource determined based on other manners for transmitting the first information, which is not limited in any way. For example, when the base station configures the data resource of SL for a certain terminal device, the base station correspondingly configures or reserves the time-frequency resource of the first information corresponding to the data at the same time.

Alternatively, the first time-frequency resource may be a periodic resource.

In S321 in fig. 5, at least one of the S terminal devices sends resource release information to the network device, where the resource release information is used to indicate to release at least part of the time-frequency resources in the first time-frequency resources.

In this step, the at least one terminal device does not comprise a third terminal device, wherein the third terminal device is terminal device 1 and one of the at least one terminal device is terminal device 2.

In S322 in fig. 6, at least one of the S terminal devices sends resource release information to the network device, the resource release information being used to indicate to release at least part of the time-frequency resources in the first time-frequency resources.

In this step, the at least one terminal device includes a third terminal device, wherein the third terminal device and the terminal device that transmits the resource release information are terminal device 1.

In S430, the network device releases at least part of the time-frequency resources in the first time-frequency resources according to the resource release information.

Optionally, the resource release information may include an identification of the at least one terminal device, such that the network device releases at least part of the time-frequency resources of the first time-frequency resources based on the identification of the at least one terminal device.

In particular, illustratively, when the overall channel resources are relatively congested or the distance between the terminal devices is relatively long, the first information of the SL may be deactivated, or the terminal device may disable feedback of the first information, and the terminal device may send resource release information requesting to release the time-frequency resources to the network device, and based on the resource release information, the network device may consider at least part of the time-frequency resources of the first time-frequency resources to be idle, and thus may reallocate the at least part of the time-frequency resources to other terminal devices.

Wherein at least part of the time-frequency resources in the first time-frequency resources may be explained as follows: part of the first time-frequency resources, or all of the first time-frequency resources. The partial resources in the first time-frequency resources represent time-frequency resources of partial terminal devices in a group of terminal devices, and specifically, when the partial terminal devices can disable feedback of the first information, the partial time-frequency resources include time-frequency resources corresponding to each terminal device in the partial terminal devices. One or more terminal devices in the S terminal devices may send resource indication information, one terminal device may request to release all resources of the first time-frequency resource, or may request to release part of the resources of the first time-frequency resource, and when the plurality of terminal devices request to release part of the time-frequency resources of the first time-frequency resource, the resources requested to be released by each terminal device may be the time-frequency resources used by each terminal device to transmit the first information, and the time-frequency resources requested to be released by any two terminal devices may be different.

In a specific implementation, the method can be flexibly processed based on actual conditions. In the following, taking s=4, the terminal device group includes 4 terminal devices as an example, the relevant content of at least one terminal device and the resource release information will be described in detail. Wherein, terminal device 1, terminal device 2 and terminal device 3, wherein, terminal device 1 is a transmitting terminal device, and terminal device 2, terminal device 3 and terminal device 4 are feedback terminal devices.

For example, if the system specifies or protocols predefine that all of the first time-frequency resources can be released, then the resource release information may be sent by only one terminal device, which resource release information is used to indicate that the first time-frequency resources are released. Of the 4 terminal devices, if the channel quality between any two terminal devices is poor, any terminal device (for example, terminal device 3) may send resource release information, where the resource indication information may carry an identifier of terminal device 3, and the network device may determine, based on the identifier of terminal device 3, that the time-frequency resource in the terminal device group is released, that is, release the first time-frequency resource.

For another example, if the system specifies or predefines a portion of the resources that can release the first time-frequency resources, then for the terminal devices that can release the resources, the resource release information of each terminal device may be sent, where the resource release information of each terminal device is used to indicate that each terminal device releases the time-frequency resources used for transmitting the first information, that is, a portion of the time-frequency resources of the first time-frequency resources. Of the 4 terminal devices, if the channel quality between the terminal device 3 and the terminal device 1 is good, it means that the terminal device 3 may continue to send the first information to the terminal device 1, and the channel quality between the terminal device 2 and the terminal device 1 and between the terminal device 4 and the terminal device 1 is poor, the first information may be deactivated, which means that only the time-frequency resources used by the terminal device 4 and the terminal device 2 for transmitting the first information, that is, part of the time-frequency resources of the first time-frequency resources may be released. In one possible implementation, the resource release information may be sent by any one of the terminal devices 2 and 4 (e.g., the terminal device 2), where the resource release information may carry the identities of the terminal device 2 and the terminal device 4, and the network device may release only the time-frequency resources used for transmitting the first information in the terminal device 2 and the terminal device 4 based on the identities of the terminal device 2 and the terminal device 4. In another possible implementation manner, the terminal device 2 and the terminal device 4 may both send resource release information, the resource release information sent by the terminal device 2 may carry an identifier of the terminal device 4, the resource release information sent by the terminal device 4 may carry an identifier of the terminal device 2, and the network device may release time-frequency resources used for transmitting the first information in the terminal device 2 and the terminal device 4 based on the identifiers of the terminal device 2 and the terminal device 4.

In the embodiment of the present application, at least one terminal device that transmits the resource release information includes a transmitting terminal device, and may also include a feedback terminal device. For example, the feedback end terminal device may actively initiate the release, alternatively, the feedback end terminal device may send signaling to the sending end terminal device to inform that the feedback end terminal device will not send the first information, so that the sending end terminal device will not retransmit any more. For another example, if the transmitting end terminal device determines that the feedback end terminal device may not need feedback, signaling may be sent to the feedback end terminal device to indicate that the feedback end terminal device does not need feedback, so that the feedback end terminal device may send the resource release information based on the indication of the transmitting end terminal device. For another example, the transmitting end terminal device determines that the feedback end terminal device may not need feedback, and may actively transmit the resource release information, and optionally, may send signaling to the feedback end terminal device to indicate that the feedback end terminal device does not need feedback.

In the embodiment of the present application, alternatively, the resource release information may be an SR or a BSR, where the SR in the embodiment is denoted as a second SR and the BSR in the embodiment is denoted as a second BSR for convenience of distinction.

Optionally, when the resource release information may be the second BSR, an identifier of the terminal device related to the release of the resource may be carried in the second BSR to instruct the network device to release at least part of the time-frequency resources of the first time-frequency resource, and the detailed description may refer to the above related description about the resource release information including the identifier of the terminal device, which is not described herein again.

Alternatively, when the resource release information may be the second SR, a cyclic shift value of the second SR may be employed to indicate that at least part of the time-frequency resources of the first time-frequency resources are released. Of course, the identifier of the terminal device related to the resource release may also be carried in the second SR, which is not limited in the embodiment of the present application.

It should be noted that, in the embodiment of the present application, the SR may be only used to request the first time-frequency resource or indicate to release at least part of the time-frequency resources of the first time-frequency resource, or may be used to request both the first time-frequency resource and indicate to release at least part of the time-frequency resources of the first time-frequency resource.

When the SR may be used only for requesting the first time-frequency resource or indicating to release at least part of the first time-frequency resource, the BSR may be used for requesting the first time-frequency resource, the SR may be used for indicating to release at least part of the first time-frequency resource, and in this case, the cyclic shift of the SR is a fixed value, e.g., cs=0, or the SR may be used for requesting the first time-frequency resource, and the BSR may be used for indicating to release at least part of the first time-frequency resource.

When the SR may be used to request the first time-frequency resource and may be used to indicate that at least part of the time-frequency resource of the first time-frequency resource is released, different cyclic shifts of the SR may correspond to different functions, and table 8 shows a correspondence between cyclic shift values of the SR and the different functions, and it should be understood that the correspondence between cyclic shift values of the SR and the different functions shown in table 8 is only illustrative and should not be construed as limiting the embodiment of the present application. Further, in this case, this embodiment may be used in combination with the embodiments corresponding to fig. 3 and 4, the first time-frequency resource may be requested through the first SR with reference to the embodiments corresponding to fig. 3 and 4, and subsequently, at least part of the time-frequency resource of the first time-frequency resource may be released through the second SR with reference to the embodiment corresponding to fig. 7. Here, it is to be noted that, when there are SRs of various functions, by way of example, different types of SRs may be distinguished by the resources configured to transmit SRs, for example, two types of SRs (e.g., a first SR and a second SR) may be distinguished by the resources configured to transmit SRs. For example, the network device may configure time-frequency resources for transmitting an SR (e.g., the second SR) releasing SL resources and time-frequency resources for transmitting an SR (e.g., the first SR) requesting SL resources (e.g., the first SR) through two RRC signaling, respectively, one configured for transmitting the SR releasing SL resources and the other configured for transmitting the SR requesting SL resources, and the network device may detect on the corresponding time-frequency resources, consider that the SR releasing SL resources is detected if information is detected on the time-frequency resources for transmitting the SR releasing SL resources, and consider that the SR requesting SL resources is detected if information is detected on the time-frequency resources for transmitting the SR requesting SL resources.

TABLE 8

In the above, the embodiment of the network device configuring the resource for the first information is described in detail with reference to fig. 3 and fig. 4, the embodiment of the network device releasing the resource for the first information is described in detail with reference to fig. 5 and fig. 6, and the embodiment of the network device configuring the resource for retransmission data is described in detail with reference to fig. 7 and fig. 8.

Fig. 7 and 8 are schematic interaction diagrams illustrating a method of resource allocation according to an embodiment of the present application. The method shown in fig. 7 includes steps S410 to S431, and the method shown in fig. 8 includes steps S410 to S432. In the embodiment of the present application, for convenience of description, similarly, the terminal device that sends the request information is referred to as a first terminal device, and the terminal device that receives the downlink control information is referred to as a second terminal device, where the first terminal device and the second terminal device may be the same terminal device or different terminal devices. The first terminal device or the second terminal device may be a transmitting terminal device or a feedback terminal device, where the transmitting terminal device is a terminal device that transmits data, and the feedback terminal device is a terminal device that receives data. For descriptive understanding, fig. 7 shows a case where the first terminal device is the terminal device 1 shown in fig. 7 and the second terminal device is the terminal device 2 shown in fig. 7, and one of the terminal device 1 and the terminal device 2 may be a transmitting terminal device, and the other may be a feedback terminal device. Fig. 8 shows a case where the first terminal device and the second terminal device are the same terminal device, wherein both the first terminal device and the second terminal device are terminal device 1.

Next, each step in fig. 7 and 8 is explained.

In S410, a first terminal device sends request information to a network device, where the request information is used to request a time-frequency resource for transmitting a retransmission data packet of first data, where the retransmission data packet of the first data is to be sent by one terminal device of S terminal devices to another terminal device of the S terminal devices, and the S terminal devices include the first terminal device, and S is an integer greater than 1;

alternatively, the request information may be a scheduling request SR or a buffer status report BSR.

In S420, the network device determines a first time-frequency resource according to the request information, where the first time-frequency resource is used for transmitting a retransmission packet of the first data.

Note that, the first time-frequency resource in this embodiment is different from the first time-frequency resource in the embodiment corresponding to fig. 3 or fig. 4 in function.

Similar to the corresponding embodiments of fig. 3 and 4, the number of S is related to a multicast or unicast scenario. S may be equal to 2, in which case the S terminal devices may be terminal devices in a unicast scenario, and the one of the 2 terminal devices (transmitting terminal device) transmits the retransmission data of the first data to the other terminal device (feedback terminal device); s may be an integer greater than 2, in which case S terminal devices may be a group of terminal devices performing multicast communication, and one terminal device (transmitting terminal device) of the S terminal devices transmits retransmission data of the first data to the other terminal device (feedback terminal device).

Specifically, the first terminal device may send, to the network device, request information for requesting the first time-frequency resource according to the requirement, and the network device configures the first time-frequency resource according to the request information. For example, if the first terminal device is a transmitting terminal device, the first terminal device sends first data to other feedback terminal devices, receives HARQ feedback information sent by the other feedback terminal devices, and the first terminal device may determine, based on the HARQ feedback information of each feedback terminal device, whether the feedback terminal device successfully receives the first data, and after confirming that there is at least one feedback terminal device that does not successfully receive the first data, may send request information to the network device to request a time-frequency resource for transmitting retransmission data of the first data; for another example, if the first terminal device is a feedback terminal device, the transmitting terminal device sends first data to at least one feedback terminal device including the first terminal device, and the first terminal device detects and receives the first data, and if the first data is not successfully received, the transmitting terminal device may send request information to the network device to request a time-frequency resource for transmitting retransmission data of the first data.

In the embodiment of the present application, based on different contents indicated by the request information, the network device may determine the first time-frequency resource in different manners (manner a and manner B), and detailed descriptions of manner a and manner B are provided below.

Mode A

Optionally, the request information indicates a requested time-frequency resource for retransmitting the first data.

The first data may be retransmitted, for example, by a new data indication (new data indication, NDI) value and an NDI flip indication. For example, when the value of the previous NDI is "1", new transmission data is indicated, and when the value of the next NDI is "0", the value of NDI is flipped, retransmission data is indicated; for another example, when the previous NDI value is "0", new data is indicated, and when the next NDI value is "1", the NDI value is flipped, and data is retransmitted.

The field may be indicated, for example, by one of the request information. For example, referring to table 9, new transmission data may be represented by a bit value of "0" and retransmission data may be represented by a bit value of "1".

TABLE 9

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The network device determines the first time-frequency resource according to the time-frequency resource for the initial transmission and/or retransmission of the first data.

Specifically, since the time-frequency resource (for convenience of distinction, referred to as a third time-frequency resource) used for transmitting the first data is configured by the network device, the network device explicitly knows the third time-frequency resource, based on which, in the mode a, the first terminal device may inform that the first data needs to be retransmitted through the request information, the network device may confirm that the first data is not successfully received by the feedback terminal device, and thus, the first time-frequency resource may be determined based on the third time-frequency resource, where the process of determining the first time-frequency resource based on the third time-frequency resource with respect to the network device may be implemented as follows.

For example, the network device may configure the transmitting terminal device with the same number of first time-frequency resources as the number of resource units of the third time-frequency resource according to the resource size of the third time-frequency resource. In this embodiment of the present application, the measurement unit of the resource in the time-frequency domain may be represented as a resource unit, and the resource unit may be, for example, a Resource Element (RE) or a Resource Block (RB).

The network device may also determine the third time-frequency resource as the first time-frequency resource, for example.

As previously described, the request information may be an SR or a BSR.

Illustratively, when the information SR is requested, the cyclic shift value of the SR may be used to indicate the data type, for example, referring to table 10, the cyclic shift value "0" may be used to represent new transmission data, and the cyclic shift value "6" may be used to represent retransmission data.

Table 10

Cyclic shift value	Data type
		0	New data transmission
6	Retransmitting data

For example, when the request information is a BSR, the data type may be indicated by way of the indication field as described above.

Mode B

the network device determines a first time-frequency resource according to the request information, and comprises:

the network device determines the first time-frequency resource according to the number M of the data blocks.

Specifically, as described above, in the transmission unit of the data block data, the retransmission packet of the first data is transmitted through M data blocks, where the load size of one data block may be predefined by a protocol or specified by a system, and one data block may be one TB, or one CBG or CB, which is not limited herein. The first terminal device informs the number M of the data blocks through the request information, and because the load size of the data blocks is known, the network device can determine the load size of the M data blocks according to M, that is, can determine the load size of the retransmission data packet of the first data according to M, so that the network device can determine the first time-frequency resource based on the load size of the retransmission data of the first data.

In S431 in fig. 7, the network device sends downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices.

The network device may also indicate the first time-frequency resource by other information (e.g., higher layer signaling), which may be RRC signaling, for example.

The second terminal device may be the first terminal device, or any one of the S terminal devices other than the first terminal device. That is, the network device may transmit the downlink control information indicating the first time-frequency resource to the first terminal device that transmits the request information, or may transmit the downlink control information to one terminal device other than the first terminal device among the S terminal devices.

In this embodiment of the present application, optionally, if the second terminal device is a feedback terminal device, the second terminal device needs to send the first time-frequency resource to the sending terminal device. For example, in fig. 7, assuming that the terminal device 1 is a transmitting terminal device, the terminal device 2 is a feedback terminal device, and if S is an integer equal to 2 and the terminal device 2 (i.e., the second terminal device) receives the downlink control information, the terminal device 2 may transmit the downlink control information to the terminal device 1 so that the terminal device 1 transmits a retransmission packet of the first data on the first time-frequency resource indicated by the downlink control information.

It should be understood that the sequence numbers of the above processes do not mean the order of execution, and the execution order of the processes should be determined by the functions and internal logic of the processes, and should not be construed as limiting the implementation process of the embodiments of the present application.

The method of resource allocation according to the embodiment of the present application is described in detail above with reference to fig. 1 to 8, and the apparatus for the method of communication of ethernet data according to the embodiment of the present application will be described in detail below with reference to fig. 9 to 10.

Fig. 9 shows an apparatus 1400 for resource allocation according to an embodiment of the present application, where the apparatus 1400 may be a network device or a chip in a network device. The apparatus 1400 may be a terminal device or a chip in a terminal device. The apparatus 1400 includes: a transceiver unit 1410 and a processing unit 1420.

In one possible implementation, the apparatus 1400 is configured to perform the respective flows and steps corresponding to the network devices in the embodiments corresponding to the methods shown in fig. 3 and fig. 4.

The transceiver unit 1410: for receiving request information from a first terminal device, the request information being for requesting time-frequency resources for transmitting first information, the first information comprising: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

processing unit 1420: the method comprises the steps of determining a first time-frequency resource according to request information, wherein the first time-frequency resource is used for transmitting the first information;

The transceiver 1410 is further configured to send downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices.

The transceiver unit 1410 is configured to perform steps S210 and S231 of the embodiment corresponding to fig. 3, and also configured to perform steps S210 and S232 of the embodiment corresponding to fig. 4, and the processing unit 1420 is configured to perform step S220 of the embodiment corresponding to fig. 3 and 4, and the detailed description may refer to the description of the relevant steps of the embodiment corresponding to fig. 3 or 4, which is not repeated herein. In another possible implementation manner, the apparatus 1400 is configured to perform the respective flows and steps corresponding to the terminal device in the embodiments corresponding to fig. 3 and fig. 4.

Processing unit 1420: for generating request information for requesting time-frequency resources for transmitting first information, the first information comprising: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

Transceiver unit 1410: for sending the request information to the network device.

The transceiver unit 1410 is configured to perform steps S210 and S231 of the embodiment corresponding to fig. 3, and also configured to perform steps S210 and S232 of the embodiment corresponding to fig. 4, and the processing unit 1420 is configured to perform step S220 of the embodiment corresponding to fig. 3 and 4, and the detailed description may refer to the description of the relevant steps of the embodiment corresponding to fig. 3 or 4, which is not repeated herein.

In another possible implementation manner, the apparatus 1400 is configured to perform the respective flows and steps corresponding to the network devices in the embodiments corresponding to fig. 7 and fig. 8.

A transceiver unit 1410, configured to receive, from a first terminal device, request information, where the request information is used to request a time-frequency resource for transmitting a retransmission packet of first data, where the retransmission packet of first data is to be sent by one terminal device of S terminal devices to another terminal device of the S terminal devices, and the S terminal devices include the first terminal device, and S is an integer greater than 1;

a processing unit 1420, configured to determine a first time-frequency resource according to the request information, where the first time-frequency resource is used to transmit a retransmission packet of the first data;

optionally, the processing unit 1420 is specifically configured to:

and determining the first time-frequency resource according to the time-frequency resource used for initially transmitting and/or retransmitting the first data.

the processing unit 1420 is specifically configured to:

and determining the first time-frequency resource according to the number M of the data blocks.

The transceiver unit 1410 is configured to perform steps S410 and S431 of the embodiment corresponding to fig. 7, and also configured to perform steps S410 and S432 of the embodiment corresponding to fig. 8, and the processing unit 1420 is configured to perform step S420 of the embodiment corresponding to fig. 7 and 8, and the detailed description may refer to the description of the relevant steps of the embodiment corresponding to fig. 7 or 8, which is not repeated herein.

In another possible implementation manner, the apparatus 1400 is configured to perform the respective processes and steps corresponding to the terminal device in the embodiments corresponding to fig. 7 and fig. 8.

A processing unit 1420, configured to generate reception request information, where the request information is used to request a time-frequency resource for transmitting a retransmission packet of first data, where the retransmission packet of first data is to be sent by one of S terminal devices to another of the S terminal devices, and the S terminal devices include the first terminal device, and S is an integer greater than 1;

a transceiver unit 1410, configured to send the request information to a network device.

optionally, the request information is used to indicate the number M of data blocks included in the retransmission packet of the first data, where M is a positive integer.

It should be appreciated that the apparatus 1400 herein is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the apparatus 1400 may be specifically a terminal device or a network device (as a transmitting end or a receiving end, respectively) in the foregoing embodiment, and the apparatus 1400 may be configured to perform each flow and/or step corresponding to the terminal device or the network device in the foregoing method embodiment, which is not repeated herein.

The apparatus 1400 of each of the above embodiments has a function of implementing the corresponding steps executed by the terminal device or the network device (as the transmitting end or the receiving end, respectively) in the above method; the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transceiver unit may be implemented by a transmitter and a receiver, and the other units, such as a processing unit, may be implemented by one or more processors, to perform the transceiver operations and associated processing operations in the respective method embodiments. In addition, the transceiver unit in the apparatus 1400 may also be composed of a transmitting unit and a receiving unit, and for performing an operation related to reception, the function of the transceiver unit may be understood as a receiving operation performed by the receiving unit, and for performing an operation related to transmission, the function of the transceiver unit may be understood as a transmitting operation performed by the transmitting unit.

In an embodiment of the application, the device in fig. 9 may also be a chip or a chip system, for example: system on chip (SoC). Correspondingly, the transceiver unit may be an input/output interface of the chip, and the processing unit may be one or more processors in the chip, which is not limited herein.

Fig. 10 illustrates an apparatus 1500 for resource allocation provided by an embodiment of the present application. The apparatus 1500 includes a processor 1510, a transceiver 1520, and a memory 1530. Wherein the processor 1510, the transceiver 1520 and the memory 1530 communicate with each other through an internal connection path, the memory 1530 is for storing instructions, and the processor 1510 is for executing the instructions stored in the memory 1530 to control the transceiver 1520 to transmit signals and/or receive signals.

In a possible implementation manner, the apparatus 1500 is configured to perform the respective flows and steps corresponding to the network devices in the embodiments corresponding to fig. 3 and fig. 4.

The transceiver 1520 is configured to receive request information from a first terminal device, where the request information is used to request a time-frequency resource for transmitting first information, and the first information includes: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

Processor 1510: the method comprises the steps of determining a first time-frequency resource according to request information, wherein the first time-frequency resource is used for transmitting the first information;

the transceiver 1520 is further configured to send downlink control information to a second terminal device, where the downlink control information is used to indicate the first time-frequency resource, and the second terminal device is one of the S terminal devices.

The transceiver 1520 is configured to perform steps S210 and S231 of the embodiment corresponding to fig. 3, and also configured to perform steps S210 and S232 of the embodiment corresponding to fig. 4, and the processor 1510 is configured to perform step S220 of the embodiment corresponding to fig. 3 and 4, and the detailed description may refer to the description of the relevant steps of the embodiment corresponding to fig. 3 or 4, which is not repeated herein.

In another possible implementation manner, the apparatus 1400 is configured to perform the respective processes and steps corresponding to the terminal device in the embodiments corresponding to fig. 3 and fig. 4.

A processor 1510 configured to generate request information for requesting time-frequency resources for transmitting first information, the first information comprising: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, wherein the S terminal devices comprise the first terminal device, and S is a positive integer greater than 1;

A transceiver 1520 for transmitting the request information to the network device.

In another possible implementation manner, the apparatus 1500 is configured to perform the respective flows and steps corresponding to the network devices in the embodiments corresponding to fig. 7 and fig. 8.

A transceiver 1520 for receiving request information from a first terminal device, the request information being for requesting a time-frequency resource for transmitting a retransmission data packet of first data to be transmitted by one of S terminal devices to other terminal devices of the S terminal devices, the S terminal devices including the first terminal device, S being an integer greater than 1;

a processor 1510 configured to determine a first time-frequency resource according to the request information, where the first time-frequency resource is used for transmitting a retransmission packet of the first data;

optionally, the processor 1510 is specifically configured to:

the processor 1510 is specifically configured to:

The transceiver 1520 is configured to perform steps S410 and S431 of the embodiment corresponding to fig. 7, and also configured to perform steps S410 and S432 of the embodiment corresponding to fig. 8, and the processor 1510 is configured to perform step S420 of the embodiment corresponding to fig. 7 and 8, and the detailed description may refer to the description of the relevant steps of the embodiment corresponding to fig. 7 or 8, which is not repeated herein.

In another possible implementation manner, the apparatus 1500 is configured to perform the respective flows and steps corresponding to the terminal device in the embodiments corresponding to fig. 7 and fig. 8.

A processor 1510 configured to generate reception request information for requesting a time-frequency resource for transmitting a retransmission packet of first data to be transmitted by one of S terminal devices to other of the S terminal devices, the S terminal devices including the first terminal device, S being an integer greater than 1;

a transceiver 1520 for transmitting the request information to a network device.

It should be understood that the apparatus 1500 may be specifically a terminal device or a network device in the foregoing embodiment (as a transmitting end or a receiving end, respectively), and may be configured to perform each step and/or flow corresponding to the terminal device or the network device in the foregoing method embodiment. The memory 1530 may optionally include read only memory and random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store information of the device type. The processor 1510 may be configured to execute instructions stored in a memory, and when the processor 1510 executes the instructions stored in the memory, the processor 1510 is configured to perform the steps and/or processes of the method embodiments described above corresponding to the terminal device or network device.

It should be appreciated that in embodiments of the present application, the processor of the apparatus described above may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software elements in the processor for execution. The software elements may be located in a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of resource allocation, the method comprising:

the network device receives request information from a first terminal device, the request information being used for requesting time-frequency resources for transmitting first information, the first information comprising: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is to be sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, where the S terminal devices include the first terminal device, S is a positive integer greater than 1, the request information is used to indicate a load size range of the first information and/or an information type of the first information, and the information type of the first information is used to indicate that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI;

2. The method according to claim 1, wherein the request information is a first scheduling request, SR, indicating a load size range of the first information and/or an information type of the first information, comprising:

3. The method of claim 2, wherein the load size range of the first information belongs to at least one load size range, the load size range of the at least one load size range being in one-to-one correspondence with a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources; or alternatively, the process may be performed,

4. The method of claim 1, wherein the request information is a first buffer status report, BSR, the first BSR comprising an information type of the first information, the information type of the first information belonging to at least one information type, the information type of the at least one information type being used to indicate that the first information is the HARQ feedback information, or the CSI, or both the HARQ feedback information and the CSI.

5. The method of claim 4, wherein an information type of the at least one information type corresponds to a set of resources in a set of resource sets, wherein the set of resource sets includes at least one set of resources;

6. The method of claim 1, wherein the request information is a first BSR;

7. The method of claim 6, wherein, if the first information includes the HARQ feedback information, or if the first information includes the HARQ feedback information and the CSI, the first BSR includes a type of HARQ codebook used for data corresponding to the HARQ feedback information, the type of HARQ codebook being a semi-static codebook or a dynamic codebook;

8. The method of claim 6 or 7, wherein the first BSR indicates content of the CSI if the first information includes the CSI or if the first information includes the HARQ feedback information and the CSI, the content of the CSI including at least one of: channel quality indication, CQI, precoding matrix, transmission order, transmission RI, channel state information reference signal resource, CRI, transmission layer number, reference signal received power, RSRP, or side link synchronization signal block resource, SSBRI;

9. The method according to any of claims 6 to 8, wherein the first BSR further comprises the number of HARQ codebooks if the first information comprises the HARQ feedback information or if the first information comprises the HARQ feedback information and the CSI; or alternatively, the process may be performed,

10. The method according to any one of claims 1 to 9, further comprising:

11. A method of resource allocation, the method comprising:

the first terminal device generates request information, where the request information is used to request time-frequency resources for transmitting first information, and the first information includes: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is to be sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, where the S terminal devices include the first terminal device, S is a positive integer greater than 1, the request information is used to indicate a load size range of the first information and/or an information type of the first information, and the information type of the first information is used to indicate that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI;

The first terminal device sends the request information to a network device.

12. The method according to claim 11, wherein the request information is a first scheduling request, SR, indicating a load size range of the first information and/or an information type of the first information, comprising:

13. The method of claim 12, wherein the load size range of the first information belongs to at least one load size range, the load size range of the at least one load size range being in one-to-one correspondence with a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources; or alternatively, the process may be performed,

14. The method of claim 11, wherein the request information is a first buffer status report, BSR, the first BSR comprising an information type of the first information, the information type of the first information belonging to at least one information type, the information type of the at least one information type being used to indicate that the first information is the HARQ feedback information, the CSI, or both the HARQ feedback information and the CSI.

15. The method of claim 14, wherein an information type of the at least one information type corresponds to a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources.

16. The method of claim 11, wherein the request information is a first BSR;

17. The method of claim 11, wherein the request information is a first BSR;

18. The method according to claim 16 or 17, wherein the first BSR further comprises the number of HARQ codebooks if the first information comprises the HARQ feedback information or if the first information comprises the HARQ feedback information and the CSI; or alternatively, the process may be performed,

19. The method according to any one of claims 11 to 18, further comprising:

20. The method of claim 19, wherein the method further comprises:

21. An apparatus for resource allocation, the apparatus comprising:

a transceiver unit, configured to receive request information from a first terminal device, where the request information is used to request a time-frequency resource used to transmit first information, and the first information includes: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is to be sent by at least one terminal device of S terminal devices to other terminal devices of the S terminal devices, where the S terminal devices include the first terminal device, S is a positive integer greater than 1, the request information is used to indicate a load size range of the first information and/or an information type of the first information, and the information type of the first information is used to indicate that the first information is the HARQ feedback information, or the CSI, or the HARQ feedback information and the CSI;

The processing unit is used for determining a first time-frequency resource according to the request information, wherein the first time-frequency resource is used for transmitting the first information;

and the receiving and transmitting unit is used for transmitting downlink control information to a second terminal device, wherein the downlink control information is used for indicating the first time-frequency resource, and the second terminal device is one terminal device in the S terminal devices.

22. The apparatus of claim 21, wherein the request information is a first scheduling request, SR, the first SR being configured to indicate a load size range of the first information and/or an information type of the first information, comprising:

23. The apparatus of claim 22, wherein the load size range of the first information belongs to at least one load size range, the load size range of the at least one load size range being in one-to-one correspondence with a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources; or alternatively, the process may be performed,

The processing unit is specifically configured to:

and determining a corresponding resource set from the resource set group according to the load size range of the first information or the information type of the first information, wherein the first time-frequency resource belongs to the corresponding resource set.

24. The apparatus of claim 21, wherein the request information is a first buffer status report, BSR, the first BSR comprising an information type of the first information, the information type of the first information belonging to at least one information type, the information type of the at least one information type being used to indicate that the first information is the HARQ feedback information, or the CSI, or both the HARQ feedback information and the CSI.

25. The apparatus of claim 24, wherein an information type of the at least one information type corresponds to a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources;

the processing unit is specifically configured to:

and determining a corresponding resource set from the resource set group according to the information type of the first information, wherein the first time-frequency resource belongs to the corresponding resource set.

26. The apparatus of claim 21, wherein the request information is a first BSR;

the processing unit is specifically configured to:

determining a load size range of the first information according to the first BSR;

determining a corresponding resource set from a resource set group according to the load size range of the first information, wherein the first time-frequency resource belongs to the corresponding resource set;

27. The apparatus of claim 26, wherein the first BSR comprises a type of HARQ codebook employed by data corresponding to the HARQ feedback information, the type of HARQ codebook being a semi-static codebook or a dynamic codebook, if the first information comprises the HARQ feedback information or if the first information comprises the HARQ feedback information and the CSI;

the processing unit is specifically configured to:

and determining the load size range of the HARQ feedback information according to the type of the HARQ codebook.

28. The apparatus of claim 26 or 27, wherein the first BSR indicates content of the CSI if the first information includes the CSI or if the first information includes the HARQ feedback information and the CSI, the content of the CSI including at least one of: channel quality indication, CQI, precoding matrix, transmission order, transmission RI, channel state information reference signal resource, CRI, transmission layer number, reference signal received power, RSRP, or side link synchronization signal block resource, SSBRI;

the processing unit is specifically configured to:

and determining the load size range of the CSI according to the content of the CSI.

29. The apparatus according to any one of claims 26 to 28, wherein the first BSR further comprises a number of the HARQ codebooks if the first information comprises the HARQ feedback information or if the first information comprises the HARQ feedback information and the CSI; or alternatively, the process may be performed,

The processing unit is specifically configured to:

and determining the load size range of the CSI according to the type of the CSI.

30. The apparatus according to any one of claims 21 to 29, wherein the transceiver unit is further configured to:

and receiving resource release information from at least one terminal device in the S terminal devices, wherein the resource release information is used for indicating to release part or all of the time-frequency resources in the first time-frequency resources.

31. An apparatus for resource allocation, the apparatus comprising:

a processing unit, configured to generate request information, where the request information is used to request a time-frequency resource for transmitting first information, and the first information includes: hybrid automatic repeat request (HARQ) feedback information, or Channel State Information (CSI), or HARQ feedback information and CSI; the first information is sent by a first resource configuration device in the S resource configuration devices to other resource configuration devices in the S resource configuration devices, S is a positive integer greater than 1, the request information is used for indicating the load size range of the first information and/or the information type of the first information, and the information type of the first information is used for indicating that the first information is the HARQ feedback information or the CSI or the HARQ feedback information and the CSI;

And the receiving and transmitting unit is used for transmitting the request information to the network equipment.

32. The apparatus of claim 31, wherein the request information is a first scheduling request, SR, the first SR being configured to indicate a load size range of the first information and/or an information type of the first information, comprising:

33. The apparatus of claim 32, wherein the load size range of the first information belongs to at least one load size range, the load size range of the at least one load size range being in one-to-one correspondence with a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources; or alternatively, the process may be performed,

34. The apparatus of claim 31, wherein the request information is a first buffer status report, BSR, the first BSR comprising an information type of the first information, the information type of the first information belonging to at least one information type, the information type of the at least one information type being used to indicate the first information as the HARQ feedback information, the CSI, or both the HARQ feedback information and the CSI.

35. The apparatus of claim 34, wherein an information type of the at least one information type corresponds to a set of resources in a set of resource sets, wherein the set of resource sets comprises at least one set of resources.

36. The apparatus of claim 31, wherein the request information is a first BSR;

37. The apparatus of claim 31, wherein the request information is a first BSR;

38. The apparatus according to claim 36 or 37, wherein the first BSR further comprises the number of HARQ codebooks if the first information comprises the HARQ feedback information or if the first information comprises the HARQ feedback information and the CSI; or alternatively, the process may be performed,

39. The apparatus according to any one of claims 31 to 38, wherein the transceiver unit is further configured to:

And receiving downlink control information from the network equipment, wherein the downlink control information is used for indicating a first time-frequency resource, and the first time-frequency resource is used for transmitting the first information.

40. The apparatus of claim 39, wherein the transceiver unit is further configured to:

and sending resource release information to the network equipment, wherein the resource release information is used for indicating to release part or all of the time-frequency resources in the first time-frequency resources.

41. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 10, or 11 to 20.