WO2021164603A1 - Resource indication method and apparatus for sidelink control information, and terminal device - Google Patents

Abstract

Disclosed are a resource indication method and apparatus for sidelink control information, and a terminal device. The method comprises: a first terminal device sending first SCI to a second terminal device, wherein the first SCI is used for indicating a first number of transmission resources and a second number of first HARQ feedback resources, and the first number of transmission resources are used for performing data and SCI transmission between the second terminal device and a third terminal device, and the second number of first HARQ feedback resources are used by the second terminal device to perform first HARQ feedback on the first terminal device. It can be seen that according to the present application, time-frequency domain location information of a scheduled resource is indicated by means of sidelink control information, thereby facilitating the implementation of a resource allocation mode in which a terminal device schedules resources for other terminal devices.

Description

Resource indication method and device for auxiliary link control information, and terminal equipment Technical field

This application relates to the field of communication technology, and in particular to a method and device for resource indication of auxiliary link control information, and terminal equipment.

Background technique

In the fifth-generation (5th-Generation, 5G) New Radio (NR) communication system, there are mainly two modes (mode) for resource allocation of the NR secondary link (sidelink, SL), namely mode 1 (mode1). ) And mode 2 (mode2). Among them, mode1 is the base station scheduling auxiliary link resources to the terminal device for auxiliary link transmission; mode2 is the auxiliary link resource determined by the base station or the network (pre-)configured by the terminal device, and mode2 contains 4 sub-modes, namely mode2a, mode2b , Mode2 and mode2d.

In the Release 16 phase of the 3rd Generation Partnership Project (3GPP), 3GPP emphasizes the standardization of mode2a, and the resource allocation mode of terminal equipment scheduling resources for other terminal equipment in mode2d needs further study.

Summary of the invention

The embodiments of the present application provide a method and device for indicating resources of secondary link control information, and terminal equipment. It is expected that the time-frequency domain position information of the scheduled resources will be indicated through the secondary link control information, which is beneficial to realize that the terminal equipment is other The resource allocation method of terminal equipment scheduling resources.

In the first aspect, an embodiment of the present application provides a resource indication method for secondary link control information, including:

The first terminal device sends the first auxiliary link control information SCI to the second terminal device, where the first SCI is used to indicate the first number of transmission resources and the second number of first hybrid automatic repeat request HARQ feedback resources, so The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to the The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the first HARQ feedback result. The HARQ feedback result of the third terminal device with respect to the data transmission condition of the second terminal device on the first number of transmission resources.

In the second aspect, an embodiment of the present application provides a resource indication method for secondary link control information, including:

The second terminal device receives the first SCI from the first terminal device, where the first SCI is used to indicate a first number of transmission resources and a second number of first HARQ feedback resources, and the first number of transmission resources is used for Data and SCI transmission are performed between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to perform the first HARQ feedback to the first terminal device , The first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is that the third terminal is directed to the second terminal device HARQ feedback results of data transmission conditions on the first number of transmission resources.

In a third aspect, an embodiment of the present application provides a resource indicating device for secondary link control information. The device includes a processing unit and a communication unit, and the processing unit is configured to:

Sending first auxiliary link control information SCI to the second terminal device through the communication unit, where the first SCI is used to indicate a first number of transmission resources and a second number of first hybrid automatic repeat request HARQ feedback resources, The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to the third terminal device. The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the The third terminal device feeds back the HARQ result of the data transmission condition of the second terminal device on the first number of transmission resources.

In a fourth aspect, an embodiment of the present application provides a resource indicating device for secondary link control information. The device includes a processing unit and a communication unit, and the processing unit is configured to:

Receive first auxiliary link control information SCI from the first terminal device through the communication unit, where the first SCI is used to indicate a first number of transmission resources and a second number of first hybrid automatic repeat request HARQ feedback resources , The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is The HARQ feedback result of the third terminal device with respect to the data transmission condition of the second terminal device on the first number of transmission resources.

In a fifth aspect, an embodiment of the present application provides a terminal device. The terminal device is a first terminal device and includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored In the memory and configured to be executed by the processor, the program includes instructions for executing the steps in any method in the first aspect of the embodiments of the present application.

In a sixth aspect, an embodiment of the present application provides a terminal device. The terminal device is a second terminal device and includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored In the memory and configured to be executed by the processor, the program includes instructions for executing the steps in any method in the second aspect of the embodiments of the present application.

In a seventh aspect, an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the first aspect or the second aspect of the embodiment of the present application. Some or all of the steps described in any method of the aspect.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the For example, part or all of the steps described in any method of the first aspect or the second aspect.

In a ninth aspect, an embodiment of the present application provides a computer program, wherein the computer program is operable to cause a computer to execute part or all of the steps described in any method of the first aspect or the second aspect of the embodiment of the present application . The computer program may be a software installation package.

It can be seen that, in the embodiment of the present application, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn the resources scheduled by the first terminal device by detecting and decoding the auxiliary link control information. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

Description of the drawings

The following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art.

FIG. 1A is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

FIG. 1B is a schematic diagram of a resource pool provided by an embodiment of the present application;

FIG. 1C is a schematic diagram of a resource allocation method in mode 2d provided by an embodiment of the present application;

FIG. 1D is a schematic diagram of a physical secondary link feedback channel resource provided by an embodiment of the present application;

1E is a schematic diagram of an implicit mapping relationship between transmission resources and physical auxiliary link feedback information resources provided by an embodiment of the present application;

2A is a schematic flowchart of a method for resource indication of secondary link control information provided by an embodiment of the present application;

2B is a schematic diagram of a resource indication field in secondary link control information provided by an embodiment of the present application;

2C is a schematic diagram of another resource indication field in secondary link control information provided by an embodiment of the present application;

2D is a schematic diagram of an independent physical secondary link control channel and a data transmission single subchannel provided by an embodiment of the present application;

3 is a block diagram of functional units of a resource indicating device for secondary link control information provided by an embodiment of the present application;

FIG. 4 is a block diagram of functional units of another device for indicating resources of auxiliary link control information provided by an embodiment of the present application; FIG.

FIG. 5 is a schematic structural diagram of a first terminal device provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a second terminal device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

Before describing in detail the resource indication method of the secondary link control information provided by the embodiment of the present application, a communication system to which the embodiment of the present application can be applied is first introduced, please refer to FIG. 1A. Wherein, the example communication system 100 includes a first terminal device 110A, a second terminal device 110B, and a third terminal device 110C. An auxiliary link is established between the first terminal device 110A and the second terminal device 110B, and an auxiliary link is established between the second terminal device 110B and the third terminal device 110C. Then, the first terminal device 110A can schedule resources to the second terminal device 110B, and the second terminal device 110B can perform auxiliary link transmission and hybrid automatic repeat request with the third terminal device 110C on the scheduled resources. request, HARQ) feedback, and HARQ feedback with the first terminal device 110A. It should be noted that the number of the first terminal device 110A, the second terminal device 110B, and the third terminal device 110C is not limited to one, and there may be more than one. In addition, the terminal device 110 may include a first terminal device 110A, a second terminal device 110B, and a third terminal device 110C.

Specifically, the example communication system 100 may include a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), and general mobile communications. System (Universal Mobil Etelecommunication System, UMTS), the fifth generation (5th Generation, 5G) New Radio (NR) communication system and Non-Terrestrial Network (NTN) system.

Specifically, the terminal device 110 in the embodiments of the present application may refer to vehicle-mounted equipment, vehicle-mounted terminal, vehicle equipment, or automobile equipment, etc., as well as user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, etc. Remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device 110 can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), and a wireless Handheld devices, computing devices, or other processing devices connected to wireless modems, relay devices, wearable devices, terminal devices in 5G NR systems, or future evolution of public land mobile communication networks (Public Land Mobile Network, PLMN) Terminal equipment in. The embodiments of the present application are not limited to this.

In the embodiment of the present application, the terminal device 110 includes 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 (CPU), a memory management unit (Memory Management Unit, MMU), and memory (also referred to as main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application. For example, the execution subject of the method provided in the embodiment of the present application may be the terminal device 110, or a functional module in the terminal device 110 that can call and execute the program.

Before describing in detail the resource indication method of the secondary link control information provided in the embodiment of the present application, the related communication technology in the embodiment of the present application will be introduced.

Resource pool:

Please refer to FIG. 1B. FIG. 1B is a schematic diagram of a resource pool provided by an embodiment of the present application. Among them, the granularity of the time domain is the time slot (slot), and the granularity of the frequency domain is the data transmission subchannel (subchannel), and each data transmission subchannel contains m resource blocks (RB), m is a high-level configuration of. When the terminal device 110 selects transmission resources, it can be determined that L data transmission sub-channels are required for transmission according to the size of the data packet. Then, the transmission resource is L continuous subchannels in a certain time slot in the resource pool, for example, a transmission resource with L=3 in FIG. 1B. Each transmission resource will simultaneously transmit the Physical Sidelink Control Channel (PSCCH) and the Physical Sidelink Share Channel (PSSCH). In other words, each transmission will contain PSCCH and PSSCH. At the same time, the PSCCH is used to carry Sidelink Control Information (SCI), and the PSSCH is used to carry transmission data. The SCI may include the time-frequency domain position information of the current transmission resource and the time-frequency domain position information of the later reserved transmission resource, and may also include some parameters in the decoding PSSCH. In the transmission resources, the frequency domain start position of the PSCCH is the same as the frequency domain start position of the PSSCH. When the PSCCH is detected, the frequency domain start position of the current PSSCH can be obtained.

Resource allocation method in mode 2d (mode2d):

In the resource allocation manner in mode 2d, one terminal device 110 may schedule transmission resources for another or more terminal devices 110. In the embodiment of the present application, the terminal device 110 that schedules resources is the first terminal device 110A, and the other terminal device or devices 110 that are scheduled are the second terminal device 110B. Then, the first terminal device 110A schedules transmission resources for the second terminal device 110B. First, the first terminal device 110A obtains a group of resources, and then, the first terminal device 110A schedules resources within the group of resources to the second terminal device 110B for secondary link transmission. The acquisition of this group of resources by the first terminal device 110A specifically considers the following two scenarios:

Scenario 1: The first terminal device is working in mode 1 (mode1)

1C, the network device 120 allocates a group of resources to the first terminal device 110A in the resource pool by means of dynamic scheduling or configured grant (Configured Grant), and then the first terminal device 110A schedules resources to the second terminal device 110A in this group of resources. The terminal device 110B performs auxiliary link transmission.

The network device 120 in the embodiment of the present application may be a device for communicating with the terminal device 110. The network equipment 120 may include an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, a Next Generation Node B (Next Generation Node B, gNB or gNodeB) in a 5G NR system, and Next Generation Evolved Node B (Next Generation Evolved Node B, ng-eNB or ng-eNodeB), Cloud Radio Access Network (Cloud Radio Access Network, CRAN) scenarios for wireless controllers. In addition, the network device 120 may also include a relay device, an access point, a vehicle-mounted device, a wearable device, one or a group of (including multiple antenna panels) antenna panels of the base station in the 5G NR system, and the antenna panels that constitute the gNB or transmission point. Network nodes, such as Baseband Unit (BBU) or Distributed Unit (DU). The embodiments of the application are not limited.

Scenario 2: The first terminal device works in mode 2

The first terminal device 110A selects a group of resources in the resource pool based on the perception window and the resource selection window in the perception resource allocation method (mode 2a), and then the first terminal device schedules resources within this group of resources to the second terminal device. Secondary link transmission.

For the above two scenarios, the manner in which the first terminal device 110A schedules resources for the second terminal device 110B may be dynamic scheduling of transmission resources, or the transmission resources may be configured through configuration authorization. In addition, the way for the second terminal device 110B to obtain transmission resources may also be: after the first terminal device 110A obtains a set of resources, the second terminal device 110B is notified of the set of resources, and then the second terminal device 110B is based on the perceived resources The perception window and resource selection window in the allocation method (mode 2a) select transmission resources in this group of resources.

Physical Sidelink Feedback Channel (PSFCH) resources:

For each resource pool, PSFCH resources will be (pre-)configured or not (pre-)configured. When the PSFCH resource is (pre-)configured for a certain resource pool, the period of the PSFCH resource will be configured, and the period N can be 1, 2 or 4 time slots. As shown in Fig. 1D, the resource pool is (pre-configured) with PSFCH resources with a period N of 2, that is, there will be one PSFCH resource in every two time slots. In addition, in the time domain, the PSFCH resource used to transmit HARQ feedback information occupies one symbol in one slot. The PSFCH symbol used to transmit HARQ feedback information may be the penultimate symbol of the secondary link symbol. In the frequency domain, the PSFCH resource used to transmit HARQ feedback information can be indicated by a (pre-)configured bitmap. The bitmap is used to indicate which RBs in the resource pool bandwidth on the PSFCH symbol are PSFCH resources, and HARQ Feedback information can be transmitted on these RBs.

HARQ feedback rules in the secondary link:

When a resource pool (pre-)configured with resources that can be HARQ feedback, the second terminal device 110B will indicate in the SCI carried by each transmission resource whether the third terminal device 110C needs to perform HARQ feedback during the current transmission. If the SCI in the current transmission indicates that the third terminal device 110C needs to perform HARQ feedback, the third terminal device 110C needs to perform HARQ feedback to the second terminal device 110B on the PSFCH resource corresponding to the current transmission after receiving the transmission. Among them, the PSFCH resource corresponding to the current transmission may be the implicit mapping relationship between the transmission resource and the PSFCH resource described below.

In the secondary link, the SCI carried by each transmission resource does not indicate the PSFCH resource corresponding to the current transmission, but is implicitly indicated by the one-to-one correspondence between the current transmission and the PSFCH resource. That is, through the implicit mapping relationship between the transmission resource and the PSFCH resource, the third terminal device 110C can determine the PSFCH resource corresponding to the current transmission, and perform HARQ feedback on the corresponding PSFCH resource. In addition, the HARQ feedback rule in the secondary link is related to the transmission mode on the secondary link.

The transmission modes on the secondary link include the following three: unicast, groupcast, and broadcast. Among them, unicast refers to a terminal device that only transmits data to another terminal device. Multicast refers to a terminal device that transmits data to other terminal devices in the same group as the terminal device. In other words, only the terminal devices in the group can receive multicast data, and the higher layer will indicate which terminal devices belong to a group. Broadcasting refers to a terminal device transmitting data to all other terminal devices, and all terminal devices can receive broadcast data. The new air interface secondary link (NR SL) can support HARQ feedback in unicast and multicast modes,

For the unicast mode, the third terminal device 110C performs HARQ feedback to the second terminal device 110B on the PSFCH resource. If the third terminal device 110C successfully receives the data from the second terminal device 110B, then the HARQ positive (ACK) message is fed back on the PSFCH resource; if the third terminal device 110C fails to receive the data, then the HARQ negative (NACK) message is fed back on the PSFCH resource. ) Message; if the third terminal device 110C does not detect the PSCCH, that is, the third terminal device does not know that there is a current transmission, then the third terminal device 110C does not perform HARQ feedback. At the same time, the second terminal device 110B will perform HARQ feedback detection on the PSFCH resource corresponding to the current transmission. When it is detected that the third terminal device 110C feeds back HARQ NACK information, the second terminal device 110B retransmits to the third terminal device 110C data.

For the multicast method, there are two types of HARQ feedback methods, namely the first type of multicast HARQ feedback method (groupcast option1) and the second type of multicast HARQ feedback method (graoupcast option2), and the SCI carried by the transmission resource will indicate which HARQ feedback method. Among them, the first type of multicast HARQ feedback mode supports the third terminal device 110C to only feed back HARQ NACK information, and all third terminal devices 110C in the group perform HARQ NACK feedback on the same PSFCH resource. That is, if there is a third terminal device 110C in the group that fails to receive successfully, the third terminal device 110C feeds back HARQ NACK information on the PSFCH resource corresponding to the current transmission; if the third terminal device 110C successfully receives or fails to detect the PSCCH , Then HARQ feedback is not performed. At the same time, when the third terminal device 110C detects the HARQ NACK information of the third terminal device 110 on the corresponding PSFCH resource, the third terminal device 110C performs retransmission. The second type of multicast HARQ feedback mode supports the third terminal device 110C to perform HARQ ACK/NACK feedback, and each third terminal device 110C in the group has a corresponding PSFCH resource to feed back the HARQ ACK/NACK message. In other words, if there are M third terminal devices 110C in the group, there will be M PSFCH resources. If the third terminal device 110C receives successfully, then the HARQ ACK information is fed back on the corresponding PSFCH resource; if the third terminal device 110C does not receive successfully, then the HARQ NACK information is fed back on the corresponding PSFCH resource; if the third terminal device 110C does not PSCCH is detected, then the third terminal device 110C does not perform HARQ feedback on the PSFCH resource. At the same time, when the second terminal device 110B detects HARQ ACK information on all M PSFCH resources, the third terminal device 110C does not perform retransmission, otherwise it performs retransmission.

The implicit mapping relationship between transmission resources and PSFCH resources:

The higher layer configures a value of k, which is used to indicate the time slot in which the PSFCH resource corresponding to the transmission resource in time slot n is located. If there is a PSFCH resource in slot n+k, then the third terminal device 110C will perform HARQ feedback on the PSFCH resource in slot n+k; if there is no PSFCH resource in slot n+k, then the third terminal device 110C will HARQ feedback is performed on the PSFCH resource in the first time slot with the PSFCH resource after the time slot n+k. Refer to Figure 1E. A PSFCH resource with a period of 2 is (pre-)configured in a resource pool, that is, a PSFCH resource in time slot n+1 and a PSFCH resource in time slot n+3, and the specific is determined according to the bitmap Multiple RBs corresponding to each PSFCH resource. For the transmission resource in time slot n, there is no PSFCH resource in time slot n+2, so the third terminal device 110C is on the PSFCH resource in time slot n+3 that has PSFCH resources in the first time slot n+2 after time slot n+2. Give feedback. In addition, for the transmission resources of time slot n+1, there are PSFCH resources in time slot n+3, so the third terminal device 110C performs HARQ feedback on the PSFCH resources in time slot n+3.

According to the above rules, the time slot in which the current transmission resource is located can determine which time slot the corresponding PSFCH resource is in. However, regarding which (unicast, groupcast option1) or which (groupcast option2) PSFCH resources in the PSFCH resources in the time slot specifically correspond, the following rules apply: the upper layer configures a Z value, which is used to indicate each PSFCH resource. The data transmission sub-channel corresponds to a PSFCH resource with Z RBs. If the transmissions in P time slots are all performing HARQ feedback on the PSFCH symbols in the same time slot, then the first data transmission subchannel in the first time slot in the P time slots corresponds to the PSFCH symbol The first PSFCH resource with Z RBs, the first data transmission subchannel in the second slot in the P slots corresponds to the second PSFCH resource with Z RBs in the PSFCH symbol,... ..., the second data transmission subchannel in the first time slot of the P time slots corresponds to the P+1th PSFCH resource with Z RBs in the PSFCH symbol, .... By analogy, it can finally be determined that each data transmission sub-channel in each of the P time slots corresponds to a corresponding PSFCH resource with Z RBs in the PSFCH symbol. As shown in FIG. 1D, the first PSFCH symbol corresponding to the s-th slot in the slot n has a PSFCH resource of 2 RBs. In addition, one RB may contain multiple resources, which are distinguished by cycle shift. For example, if one RB contains Y cycle shift resources, then Z RBs contain Z×Y PSFCH resources. For unicast and groupcast option1, only one PSFCH resource is required for one transmission, and according to the formula Kmod(Z×Y), one PSFCH resource of the Z×Y PSFCH resources corresponding to a certain data transmission subchannel can be determined, and the third terminal device 110C transmits HARQ feedback on the PSFCH resource, where K is the identification (UE ID) of the second terminal device carried in the SCI transmitted by the second terminal device 110B. For groupcast option2, if there are M third terminal devices 110C in the group, then M PSFCH resources are required for one transmission, and according to the formula (K+M) mod (Z×Y), it is determined that it is the Z corresponding to the data transmission sub-channel. × M PSFCH resources in the Y PSFCH resources, and M third terminal devices 110C respectively transmit their HARQ feedback on the M PSFCH resources.

The following will introduce the execution steps of the resource indication method of the secondary link control information from the perspective of the method example, please refer to FIG. 2A. 2A is a schematic flowchart of a method for indicating resources of secondary link control information according to an embodiment of the present application, and the method includes:

S210: The first terminal device 110A sends the first auxiliary link control information SCI to the second terminal device 110B.

The first SCI is used to indicate the first number of transmission resources and the second number of first HARQ feedback resources. It is understandable that the first SCI is specifically used to indicate the time-frequency domain location information of the first number of transmission resources and the time-frequency domain location information of the second number of first HARQ feedback resources. The time-frequency domain position information of the first number of transmission resources may include the slot position of each transmission resource in the first number of transmission resources, the frequency domain starting position of each transmission resource, and the frequency domain of each transmission resource. The size of the frequency domain is used to indicate the number of subchannels occupied in the frequency domain; the time-frequency domain position information of the second number of first HARQ feedback resources may include each of the second number of first HARQ feedback resources The slot position where the first HARQ feedback resource is located, the frequency domain starting position or the frequency domain size of each first HARQ feedback resource, etc. It should be noted that whether the first SCI needs to indicate the frequency domain size of each first HARQ feedback resource in the second number of first HARQ feedback resources can be determined by the bearer channel of the first SCI. For example, if the bearer channel of the first SCI is the standalone PSCCH or PSCCH+PSSCH single subchannel, since the frequency domain size of the standalone PSCCH and PSCCH+PSSCH single subchannel is fixed, there is no need to indicate each first SCI in the first SCI. The frequency domain size of the HARQ feedback resource. The frequency domain size of each first HARQ feedback resource can be obtained through the frequency domain starting position of each first HARQ feedback resource indicated by the first SCI, plus its fixed frequency domain size.

Specifically, the first number of transmission resources are used for data and SCI transmission between the second terminal device 110B and the third terminal device 110C, and the second number of first HARQ feedback resources are used for the second terminal device 110B to the first terminal. The device 110A performs the first HARQ feedback. Wherein, the first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is that the third terminal device 110C is in the first number for the second terminal device 110B. HARQ feedback results of data transmission conditions on each transmission resource.

Further, the first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result. It should be noted that the second terminal device 110B is in the second HARQ corresponding to the current transmission resource The HARQ feedback of the third terminal device 110C is detected on the feedback resource, and it is determined that it is an HARQ ACK or NACK message, that is, the second HARQ feedback result, and then according to the second HARQ feedback result, the second terminal device 110B is the second terminal device 110B after the current transmission resource. The determined HARQ feedback result, that is, the first HARQ feedback result, is fed back to the first terminal device 110A on a first HARQ feedback resource. The judgment rule can be as follows: For the unicast HARQ feedback mode, when the second terminal device 110B detects the HARQ ACK message on the second HARQ feedback resource, the second terminal device 110B judges the HARQ ACK and feeds it back to the first terminal device 110A HARQ ACK information, otherwise it is judged as HARQ NACK and the HARQ NACK information is fed back to the first terminal device 110A; for the first type of multicast HARQ feedback mode, when the second terminal device 110B detects HARQ NACK information on the second HARQ feedback resource , The second terminal device 110B feeds back HARQ NACK information to the first terminal device 110A, otherwise it feeds back HARQ ACK information; for the second type of multicast HARQ feedback mode, when the second terminal device 110B has all the corresponding second HARQ feedback resources When the HARQ ACK information is detected, the second terminal device 110B feeds back the HARQ ACK information to the first terminal device 110A, otherwise, it feeds back the HARQ NACK information.

Further, the second HARQ feedback resource may be a physical sidelink feedback channel (PSFCH) resource. Therefore, the second HARQ feedback resource corresponding to the current transmission resource can be determined by the content in the above-mentioned "implicit mapping relationship between transmission resource and PSFCH resource", that is, a value of k is configured by high-level signaling.

Further, regardless of the unicast or multicast HARQ feedback mode, the number of bits of the HARQ ACK/NACK information sent by the second terminal device 110B to the first terminal device 110A is 1.

Further, for the second HARQ feedback result that is the HARQ feedback result of the third terminal device 110C on the data transmission condition of the second terminal device 110B on the first number of transmission resources, it can be understood that the third terminal device 110C judges that the current The data transmission status of the transmission resource, and the second HARQ feedback result is fed back on the second HARQ feedback resource corresponding to the current transmission resource. The judgment rule can be as follows: For unicast and second-type multicast HARQ feedback methods, if the third terminal device 110C successfully receives data from the second terminal device 110B on the current transmission resource, the second terminal device 110B corresponding to the current transmission resource HARQ ACK information is fed back on the HARQ resource; if the third terminal device 110C does not successfully receive, the HARQ NACK information is fed back; if the third terminal device 110C does not detect the PSCCH on the current transmission resource, the HARQ feedback is not performed. For the first-type multicast HARQ feedback mode, if the third terminal device 110C fails to receive successfully, then the HARQ NACK information is fed back; if the third terminal device 110C successfully receives or does not detect the PSCCH, the HARQ feedback is not performed.

Further, the time interval between the first transmission resource in the first number of transmission resources and the last transmission resource in the first number of transmission resources does not exceed 32 time slots.

In a possible example, the first number of transmission resources includes the second number of transmission resources, where the second number of transmission resources is configured with the second number of first HARQ after each transmission resource in a one-to-one correspondence relationship. One of the first HARQ feedback resources in the feedback resources. It can be understood that there is a second number of transmission resources in the first number of transmission resources, and after each transmission resource of the second number of transmission resources, a first HARQ feedback resource is configured. For example, if the first SCI schedules three transmission resources, and each of the first HARQ feedback resources is scheduled after the first transmission resource and the third transmission resource. At this time, the second number of transmission resources are the first transmission resource and the third transmission resource. If the first SCI schedules three transmission resources, and only one HARQ feedback resource is scheduled after the last transmission resource. At this time, the second number of transmission resources is the third transmission resource.

In a possible example, when there is a second HARQ feedback resource corresponding to the current transmission resource between the current transmission resource and the next transmission resource of the current transmission resource, the current transmission resource carries the second SCI, and the second SCI uses Instructing the third terminal device 110C to perform the second HARQ feedback to the second terminal device 110B on the second HARQ feedback resource corresponding to the current transmission resource. It is understandable that if there is a second HARQ feedback resource corresponding to the current transmission between the current transmission and the next transmission, that is, the second HARQ feedback corresponding to the current transmission is before the next transmission resource, then the SCI of the current transmission The third terminal device 110C will be instructed to perform HARQ feedback on the current transmission.

In a possible example, in the case that the second HARQ feedback resource corresponding to the current transmission resource is after the next transmission resource of the current transmission resource, after the transmission on the current transmission resource is completed, the next transmission resource of the current transmission resource is directly used. To transfer. It is understandable that if the time domain locations of the two transmission resources (the previous and the next) are very close, the second HARQ feedback resource corresponding to the previous transmission is after the next transmission, then the previous transmission will be directly followed. Perform the next transmission without HARQ feedback on the previous transmission to determine whether the subsequent transmission is needed.

Since one SCI issued by the first terminal device 110A can schedule one or more transmission resources for the same transport block (Transport Block, TB) for the second terminal device 110B, and one or more first HARQ feedback resources for HARQ feedback, that is, the first number and the second number are integers greater than or equal to 1, so for different transmission resources and the number of first HARQ feedback resources, the first SCI needs corresponding time-frequency domain position information indicating the transmission resources and Time-frequency domain location information of the first HARQ feedback resource.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of transmission resources is a single transmission resource, and the single transmission resource is The last one of the first number of transmission resources; the first SCI may include: a first time interval indicator field (Time gap1), a first frequency domain index indicator field (Frequency index1), and a first time domain resource indicator field (Time gap1). indication field), a first frequency domain resource indication field (Frequency indication field), a second time interval indication field (Time gap2), and a second frequency domain index indication field (Frequency index2). It is understandable that the first SCI schedules multiple transmission resources and one HARQ feedback resource, and after the last transmission resource of the multiple transmission resources, a first HARQ feedback resource is configured, and the second number of transmission resources is more The last transmission resource of two transmission resources. At the same time, the resource indication field in the first SCI is used to indicate the time-frequency domain location information of these resources.

The first time interval indicator field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; the first frequency domain index indicator field is used to indicate the first number of transmission resources The start position of the first transmission resource in the frequency domain, that is, the data transmission subchannel index; the first time domain resource indicator field is used to indicate the first transmission resource in the first number of transmission resources. The time domain resource position of each transmission resource; the first frequency domain resource indication field is used to indicate the frequency domain starting position and the first number of transmissions of each transmission resource after the first transmission resource in the first number of transmission resources The frequency domain size of all transmission resources in the resource. The frequency domain size is used to indicate the number of data transmission sub-channels occupied by the transmission resource, and the frequency domain size of all transmission resources is equal; the second time interval indicator field is used to indicate the correspondence of a single transmission resource The time interval between the second HARQ feedback resource and the single first HARQ feedback resource; the second frequency domain index indication field is used to indicate the frequency domain start position of the single first HARQ feedback resource.

Table 1

Specifically, the first time domain resource indication field is specifically used to indicate the time of all transmission resources in the first number of transmission resources except the first transmission resource in 31 time slots after the time slot where the first transmission resource is located. Domain position, and the number of bits of the first time domain resource indication domain is determined by the maximum number of transmission resources indicated in one SCI configured by high-layer signaling. Among them, the L is the maximum number of transmission resources that can be indicated in an SCI, and the number of transmission resources indicated by the SCI each time is less than or equal to L. In addition, the number of bits in the first time domain resource indicator field can be as shown in Table 1. When L is 2, the number of bits in the first time domain resource indicator field is 5; when L is 3, the first time domain resource The number of bits in the indication field is 9.

Specifically, the number of bits of the first frequency domain resource indication field is determined by the maximum number of SCI transmission resources at one time L configured by high-layer signaling and the number of data transmission sub-channels included in a group of resources acquired by the first terminal device 110A. Wherein, a group of resources acquired by the first terminal device 110A may be a group of resources introduced in the resource allocation manner in the above-mentioned mode 2d, and the number of bits of the first frequency domain resource indicator field may be as shown in Table 1.

For an example, please refer to Figure 2B. In the first SCI sent by the first terminal device 110A, the first terminal device 110A schedules two transmission resources to the second terminal device 110B for transmitting the current TB, and schedules a first HARQ after the second transmission resource. Feedback resources. The first terminal device 110A needs to explicitly indicate in the SCI of the second transmission resource that the third terminal device 110C needs to perform the second HARQ feedback on the second HARQ feedback resource corresponding to the current transmission resource, and finally the second terminal device 110B The first HARQ feedback is performed on the first HARQ feedback resource after the scheduled second transmission. In addition, in the resource indicator field in the first SCI, the first time interval indicator field indicates the time interval between the first SCI and the first transmission resource (time interval 1 in the figure), in units of time slots, The time domain position of the first transmission resource can be known; the first frequency domain index indication field indicates the frequency domain start position of the first transmission resource; the first time domain resource indication field indicates that the second transmission resource is in the first transmission In which of the 31 time slots after the resource, the time domain position of the second transmission resource can be known; the first frequency domain resource indication field indicates the first transmission resource in the first number of transmission resources. The frequency domain start position of each transmission resource and the frequency domain size of all transmission resources in the first number of transmission resources. The frequency domain size is used to indicate the number of data transmission sub-channels occupied by the frequency domain, and the number of all transmission resources The frequency domain is equal in size; the second time interval indicator field indicates the time interval between the second HARQ feedback resource and the first HARQ feedback resource (time interval 2 in the figure); the second frequency domain index indicator field indicates the first HARQ feedback resource The start position of the frequency domain.

It can be seen that the first electronic device 110A schedules multiple transmission resources and one first HARQ feedback resource for the second electronic device 110B, and the one first HARQ feedback resource is after the last transmission resource among the multiple transmission resources. Since the first terminal device 110A schedules the first HARQ feedback resource for the second terminal device 110B, the second terminal device 110B performs the first HARQ feedback on the first HARQ feedback resource after the scheduled last transmission resource. In addition, multiple indication fields included in the SCI are used to indicate the time-frequency domain position information of multiple transmission resources and the time-frequency domain position information of a first HARQ feedback resource.

For the above example, the frequency domain start position of the first HARQ feedback resource (indicated by the second frequency domain index) and the frequency domain resource position information of each transmission resource after the first transmission resource (indicated by the first frequency domain index) The resource indication field indication) can be jointly coded together and indicated by the second frequency domain resource indication field. At this time, whether the first SCI schedules the first HARQ feedback resource can be judged by whether there is a second slot interval indication field. If there is a second slot interval indicator field, the last frequency domain start position indicated in the second frequency domain resource indicator field after joint coding is the frequency domain start position of the first HARQ feedback resource.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of transmission resources is a single transmission resource, and the single transmission resource is The last one of the first number of transmission resources; the first SCI may include: a first time domain interval indicator field, a first frequency domain index indicator field, a first time domain resource indicator field, a second frequency domain resource indicator field, and a first Three time interval indication field.

The first time interval indicator field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; the first frequency domain index indicator field is used to indicate the first number of transmission resources The frequency domain start position of the first transmission resource in the first transmission resource; the first time domain resource indication field is used to indicate the time domain resource position of each transmission resource after the first transmission resource in the first number of transmission resources; The second frequency domain resource indication field is used to indicate the frequency domain starting position of each transmission resource after the first transmission resource in the first number of transmission resources, and the frequency domain size of all transmission resources in the first number of transmission resources The frequency domain size of all transmission resources is the same as the frequency domain start position of a single first HARQ feedback resource; the third time interval indication field is used to indicate the difference between the second HARQ feedback resource corresponding to a single transmission resource and the single first HARQ feedback resource. The time interval between.

Specifically, the first time domain resource indication field is similar to the above example, and the number of bits of the first time domain resource indication field may be as shown in Table 1.

Specifically, the number of bits in the second frequency domain resource indicator field is configured by the highest number of transmission resources indicated in one SCI configured by high-level signaling, L, and the number of data transmission sub-channels included in a set of resources acquired by the first terminal device 110A S decided. Wherein, when L is 2, the number of bits in the second frequency domain resource indicator field is calculated by the following formula:

When L is 3, the number of bits in the second frequency domain resource indicator field is calculated by the following formula:

By converting the above two formulas into binary and rounding up, the number of bits required by the second frequency domain resource indicator domain can be obtained.

In the above example, among the transmission resources scheduled by the first terminal device 110A, only the last transmission resource is followed by the first HARQ feedback resource. If the current transmission resource is not the last transmission resource and the first data is successfully transmitted on the current transmission resource, that is, The third terminal device 110C feeds back the HARQ ACK information to the second terminal device 110B, then the second terminal device 110B will not retransmit the first data on subsequent transmission resources of the current transmission resource. Since there is no first HARQ feedback resource after the current transmission resource, the second terminal device 110B cannot perform HARQ feedback to the first terminal device 110A in time, and needs to wait until the first HARQ feedback resource after the last transmission resource to report to the first terminal device. 110A performs HARQ feedback. Although the second terminal device 110B can finally perform HARQ feedback to the first terminal device 110 through the first HARQ feedback resource, the first terminal device 110A cannot know in time that the second terminal device 110B will not transmit data on subsequent transmission resources of the current transmission resource. , Resulting in these subsequent resources being empty, and the first terminal device 110A cannot be recycled in time, resulting in a waste of resources. To this end, it is possible to consider multiple transmission resources and multiple first HARQ feedback resources scheduled by the first terminal device 110A, and configure one first HARQ feedback resource after any transmission resource among the multiple transmission resources.

In a possible example, when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is any one of the first number of transmission resources; the first SCI includes: Time domain interval indication domain, first frequency domain index indication domain, first time domain resource indication domain, third frequency domain resource indication domain, HARQ feedback resource number indication domain (HARQ feedback resource number indication), multiple time interval indication domains , The third frequency domain index indication domain. It can be understood that the first SCI schedules multiple transmission resources and one or more HARQ feedback resources, and one first HARQ feedback resource is configured after any transmission resource among the multiple transmission resources. At the same time, the resource indication field in the first SCI is used to indicate the time-frequency domain location information of these resources.

The first time interval indicator field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; the first frequency domain index indicator field is used to indicate the first number of transmission resources The frequency domain start position of the first transmission resource in the first transmission resource; the first time domain resource indication field is used to indicate the time domain resource position of each transmission resource after the first transmission resource in the first number of transmission resources; The three-frequency domain resource indicator field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and the frequency domain size of all transmission resources in the first number of transmission resources , The frequency domain size is used to indicate the number of data transmission sub-channels occupied by the transmission resource, and the frequency domain sizes of all transmission resources are equal; the HARQ feedback resource quantity indicator field is used to indicate that the second number of transmission resources correspond to each other in a one-to-one relationship. The first HARQ feedback resource of the second number of first HARQ feedback resources is configured after the two transmission resources; each time interval indicator field in the multiple time interval indicator fields is used to indicate the first HARQ feedback resource of the second number of transmission resources. The time interval between a second HARQ feedback resource corresponding to a transmission resource and a first HARQ feedback resource configured after the first transmission resource, where the first transmission resource is any one of the second number of transmission resources; and third The frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources.

Specifically, the first time domain resource indication field is similar to the above example, and the number of bits of the first time domain resource indication field may be as shown in Table 1.

Specifically, the number of bits in the third frequency domain resource indication domain is configured by the highest number of transmission resources indicated in one SCI configured by high-level signaling, L, and the number of data transmission sub-channels included in a set of resources acquired by the first terminal device 110A. Decide. The number of bits in the third frequency domain resource indicator field can be as shown in Table 1.

Specifically, the number of bits in the HARQ feedback resource quantity indication field may be determined by the maximum number of transmission resources indicated in the SCI configured by the higher layer at one time, L. Further, the number of bits in the HARQ feedback resource quantity indication field may be L. For example, when L is 2, the number of bits in the HARQ feedback resource quantity indication field is 2; when L is 3, the number of bits in the HARQ feedback resource quantity indication field is 3.

Specifically, in order to reduce the overhead of the first SCI, the time interval indicated by each time interval indicator field in the multiple time interval indicator fields may be equal, and the fourth time interval indicator field in the multiple time interval indicator fields is used to indicate For equal time intervals, the fourth time interval indicator field is any one of the multiple time interval indicator fields. It is understandable that when the indicated time intervals are equal, the multiple time interval indicator fields are one time interval indicator, and the one time interval indicator field is used to indicate that the time intervals are equal.

Specifically, the third frequency domain index indication field indicates the frequency domain starting position of each first HARQ feedback resource scheduled by the first SCI through joint coding, and since the frequency domain size of each first HARQ feedback resource is fixed, it is not Need additional instructions. The number of bits in the third frequency domain index indication field is determined by the maximum number of transmission resources indicated in one SCI configured by high-level signaling, L, and the number of data transmission sub-channels included in a set of resources acquired by the first terminal device 110A. . Among them, when L is 2, the number of bits in the third frequency domain index indication field is calculated by the following formula:

When L is 3, the number of bits in the third frequency domain index indication field is calculated by the following formula:

By converting the above formula into binary and rounding up, the number of bits required by the third frequency domain index indication domain can be obtained.

For an example, please refer to Figure 2C. In the first SCI issued by the first terminal device 110A, the first terminal device 110A schedules two transmission resources to the second terminal device 110B for transmitting the first data, and the first transmission resource and the second transmission resource After the resources, a first HARQ feedback resource is scheduled. The first terminal device 110A needs to explicitly indicate in the SCI of the first transmission resource and the second transmission resource that the third terminal device 110C needs to perform the second HARQ feedback on the second HARQ feedback resource corresponding to the current transmission resource. If the first data is successfully transmitted on the first transmission resource, that is, the third terminal device 110C feeds back HARQ ACK information to the second terminal device 110B on the second HARQ feedback resource corresponding to the first transmission resource, then the second terminal device 110B will not retransmit the first data on the second transmission resource, and will not perform the second HARQ feedback on the second HARQ feedback resource corresponding to the second transmission resource. Since a first HARQ feedback resource is configured after the first transmission resource, the second terminal device 110B can timely use the first HARQ feedback resource to perform the first HARQ feedback to the first terminal device 110A. After receiving the HARQ ACK information, the first terminal device 110A will reclaim the second transmission resource to improve resource utilization. If the first data is not successfully transmitted on the first transmission resource, that is, the third terminal device 110C feeds back HARQ NACK information to the second terminal device 110B on the second HARQ feedback resource corresponding to the first transmission resource, then the second terminal The device 110B needs to retransmit the first data on the second transmission resource and send HARQ NACK information to the first terminal device 110. Finally, the second terminal device 110B obtains the second HARQ feedback result through the second HARQ feedback resource corresponding to the second transmission resource, and then performs the first HARQ feedback to the first terminal device through the first HARQ feedback resource configured thereafter.

In addition, in the resource indicator field in the first SCI of FIG. 2C, the first time interval indicator field indicates the time interval between the first SCI and the first transmission resource (time interval 1 in the figure), in terms of time slot As a unit, the time domain position of the first transmission resource can be known; the first frequency domain index indication field indicates the frequency domain start position of the first transmission resource; the first time domain resource indication field indicates that the second transmission resource is in the first In which of the 31 time slots after a transmission resource is transmitted, the time domain position of the second transmission resource can be known; the third frequency domain resource indicator field indicates the frequency domain start position of the second transmission resource And the frequency domain size of the first and second transmission resources. The frequency domain size is used to indicate the number of data transmission sub-channels occupied by the transmission resource, and the frequency domain size of the first and second transmission resources is equal; HARQ feedback The resource quantity indicator field indicates that the first transmission resource and the second transmission resource are each configured with a first HARQ feedback resource; one of the multiple time interval indicator fields indicates the second corresponding to the first transmission resource. The time interval between the HARQ feedback resource and a first HARQ feedback resource configured after the first transmission resource (time interval 2 in the figure), and the other time interval indication field in the multiple time interval indication fields indicates the second The time interval between the second HARQ feedback resource corresponding to one transmission resource and a first HARQ feedback resource configured after the second transmission resource (time interval 3 in the figure), and if in order to reduce the overhead of the first SCI, The first SCI indicates that the time interval 2 and the time interval 3 are equal. At this time, the multiple time interval indicator fields are a time interval indicator field, and the one time interval indicator field is used to indicate that the time intervals are equal; the third frequency domain index indicates The field indicates the respective start positions of the two first HARQ feedback resources in the frequency domain.

It can be seen that, compared with the previous example, any transmission resource among the multiple transmission resources scheduled by the first terminal device 110A is configured with a first HARQ feedback resource. If the first HARQ feedback resource is configured after the current transmission resource, and the first data is successfully transmitted in the current transmission, that is, the third terminal device 110C feeds back HARQ ACK information to the second terminal device 110B, then the second terminal device 110B can directly pass the current transmission The first HARQ feedback resource after transmission performs HARQ feedback to the first terminal device 110A. If the first HARQ feedback resource is not configured after the current transmission resource, and the current transmission successfully transmits the first data, the second terminal device 110B may also perform HARQ feedback on the first first HARQ feedback resource after the current transmission. At this time, the first terminal device 110A knows that the second terminal device 110B will not retransmit on subsequent transmission resources, and can reclaim these subsequent resources for other scheduling, such as the second terminal device 110B for scheduling or transmitting the second data. Scheduling of other terminal equipment.

In a possible example, the bearer channel of the first SCI may include one of the following: a standalone physical secondary link control channel (standalone PSCCH), and a data transmission single subchannel (PSCCH+PSSCH single subchannel). It is understandable that when the first terminal device 110A issues an SCI, the SCI may be carried by the standalone PSCCH or PSCCH+PSSCH single subchannel.

Specifically, the standalone PSCCH occupies one time slot in the time domain, and occupies a fixed number of RBs in the frequency domain, as shown in FIG. 2D. In addition, the standalone PSCCH only carries SCI, and the standalone PSCCH is a special frequency domain size.

Specifically, compared with the normal transmission resources (including PSCCH and PSSCH), the frequency domain granularity is a data transmission subchannel, that is, the occupied frequency domain resources are several consecutive data transmission subchannels, and the PSCCH+PSSCH single subchannel is in time. It occupies a time slot in the frequency domain and a data transmission sub-channel in the frequency domain. No additional special structure is required (for example, standalone PSCCH requires a special frequency domain structure. The frequency domain occupies multiple fixed RBs and the same as existing The data transmission granularity is also different), as shown in Figure 2D. In addition, the data transmission of the PSCCH+PSSCH single subchannel may only include the transmission of the SCI on the PSCCH, or the transmission of the SCI on the PSCCH and the transmission of service data on the PSSCH. The difference between PSCCH+PSSCH single subchannel data transmission and normal data transmission occupying a data transmission subchannel is: PSCCH+PSSCH single subchannel data transmission must carry SCI, but may not carry service data; in PSCCH+PSSCH single subchannel There is a 1-bit indicator field in the SCI, which is used to indicate that a single data transmission subchannel (single subchannel) is a PSCCH+PSSCH single subchannel, rather than a normal data transmission that occupies a data transmission subchannel.

In a possible example, the channels of the second number of first HARQ feedback resources may include one of the following: standalone PSCCH, PSCCH+PSSCH single subchannel. It is understandable that the channel for the second terminal device 110B to perform the first HARQ feedback to the first terminal device 110A may have a standalone PSCCH or a PSCCH+PSSCH single subchannel.

In a possible example, before S210, the second terminal device 110B may send first information to the first terminal device 110A, and the first information is used to request the first number of transmission resources and the second number of first HARQ feedbacks. resource. The first information includes one of the following: a scheduling request (scheduling request, SR), and a buffer status report (Buffer Status Report, BSR).

Specifically, the possible ways for the second terminal device 110B to send the SR to the first terminal device 110A are: 1) using the PSFCH to send the SR; 2) using the standalone PSCCH or PSCCH+PSSCH single subchannel to send the SR.

It is understandable that when the second terminal device 110B sends an SR/BSR to the first terminal device 11A to request resources, the first terminal device 11A issues a resource scheduling SCI, which may be a scheduling grant SCI (scheduling grant SCI). ), and can be carried by standalone PSCCH or PSCCH+PSSCH single subchannel. Then, the second terminal device 110B detects and decodes the SCI, and can know the resources scheduled by the first terminal device 110A.

S220. The second electronic device 110B receives the first SCI from the first electronic device 110A.

It can be seen that in this embodiment, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn the resources scheduled by the first terminal device by detecting and decoding the auxiliary link control information. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between various network elements on the method side. It can be understood that, in order to realize the above-mentioned functions, the terminal and the network device include hardware structures and/or software modules corresponding to the respective functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of the present application may divide the terminal and the network device into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software program modules. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

In the case of using an integrated unit, FIG. 3 shows a block diagram of the functional unit composition of a resource indicating device for auxiliary link control information. The apparatus 300 for indicating resources of secondary link control information is applied to the first terminal device, and specifically includes: a processing unit 302 and a communication unit 303. The processing unit 302 is configured to control and manage the actions of the first terminal device. For example, the processing unit 302 is configured to support the terminal device to perform step 210 in FIG. 2A and other processes used in the technology described herein. The communication unit 303 is used to support communication between the first terminal device and other devices. The first terminal device may also include a storage unit 301 for storing program codes and data of the terminal.

The processing unit 302 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application. The processing unit 302 may also be a combination that implements calculation functions, for example, includes a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication unit 303 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 301 may be a memory. When the processing unit 302 is a processor, the communication unit 303 is a communication interface, and the storage unit 301 is a memory, the resource indicating device 300 of secondary link control information involved in the embodiment of the present application may be the first terminal device shown in FIG. 5 .

In specific implementation, the processing unit 302 is configured to perform any step performed by the terminal device in the foregoing method embodiment, and when performing data transmission such as sending, the communication unit 303 can be optionally invoked to complete the corresponding operation. The detailed description will be given below.

The processing unit 302 is configured to send first auxiliary link control information SCI to the second terminal device, where the first SCI is used to indicate a first number of transmission resources and a second number of first hybrid automatic repeat request HARQ feedback resources , The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to perform the first HARQ to the first terminal device Feedback, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is that the third terminal device transmits to the second terminal device in the first number The HARQ feedback result of the data transmission situation of the resource.

It can be seen that in this embodiment, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn the resources scheduled by the first terminal device by detecting and decoding the auxiliary link control information. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

In a possible example, the first number of transmission resources includes the second number of transmission resources, and the second number of transmission resources is configured with the second number of first HARQ feedback resources after each transmission resource in a one-to-one correspondence. One of the first HARQ feedback resources in.

In a possible example, the first SCI includes a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, the first time interval indicator field is used to indicate that the first SCI and The time interval between the first transmission resource in the first number of transmission resources; the first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; A time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, the second number of transmission resources is a single transmission resource, and the single transmission resource is a first HARQ feedback resource. The last one of a number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second frequency domain index indicator field; wherein, the first frequency domain resource indicator field is used for Indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources, the frequency domain size of all transmission resources in the first number of transmission resources, and the frequency domain size of all transmission resources Equal; the second time interval indicator field is used to indicate the time interval between the second HARQ feedback resource corresponding to a single transmission resource and a single first HARQ feedback resource; the second frequency domain index indicator field is used to indicate a single first HARQ feedback resource The start position of the frequency domain.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, the second number of transmission resources is a single transmission resource, and the single transmission resource is a first HARQ feedback resource. The last one of a number of transmission resources; the first SCI includes: a second frequency domain resource indicator field and a third time interval indicator field; wherein the second frequency domain resource indicator field is used to indicate the first number of transmission resources The frequency domain start position of each transmission resource after the first transmission resource in, the frequency domain size of all transmission resources in the first number of transmission resources, and the frequency domain start position of a single first HARQ feedback resource, all The frequency domains of the transmission resources are equal in size; the third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to a single transmission resource and the single first HARQ feedback resource.

In a possible example, the number of bits in the second frequency domain resource indicator field is obtained by the following calculation:

Where, S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, L represents the maximum number of transmission resources indicated in one SCI configured by high-level signaling, and the transmission resource indicated by the first SCI The number of is less than or equal to L.

In a possible example, when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is any one of the first number of transmission resources; the first SCI further includes: The third frequency domain resource indicator field, the HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and the third frequency domain index indicator field; wherein the third frequency domain resource indicator field is used to indicate the number of transmission resources in the first number of transmission resources. The frequency domain start position of each transmission resource after the first transmission resource and the frequency domain size of all transmission resources in the first number of transmission resources, the frequency domain size of all transmission resources are the same; the HARQ feedback resource quantity indicator is used In order to indicate that the second number of transmission resources are configured in a one-to-one correspondence, one of the second number of first HARQ feedback resources is configured after each transmission resource; each of the multiple time interval indication domains The time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources and a first HARQ feedback resource configured after the first transmission resource, the first transmission resource Is any one of the second number of transmission resources; the third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources.

In a possible example, the number of bits in the HARQ feedback resource quantity indication field is calculated by calculating the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, L, and the calculation result is equal to L.

In a possible example, each time interval indicator field in the multiple time interval indicator fields indicates the same time interval, and the fourth time interval indicator field in the multiple time interval indicator fields is used to indicate the equal time interval. The four time interval indication field is any one of multiple time interval indication fields.

In a possible example, the number of bits in the third frequency domain index indication domain is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L.

In a possible example, the bearer channel of the first SCI includes one of the following: standalone PSCCH, PSCCH+PSSCH single subchannel.

In a possible example, the channels of the second number of first HARQ feedback resources include one of the following: standalone PSCCH, PSCCH+PSSCH single subchannel.

In a possible example, the processing unit 302 is further configured to: receive first information from the second terminal device, where the first information is used to request the first number of transmission resources and the second number of first HARQ feedback resource.

In a possible example, the first information includes one of the following: a scheduling request SR, and a buffer status report BSR.

In the case of using an integrated unit, FIG. 4 illustrates a block diagram of the functional unit composition of another resource indicating device for auxiliary link control information. The apparatus 400 for indicating resources of secondary link control information is applied to a second terminal device, and specifically includes: a processing unit 402 and a communication unit 403. The processing unit 402 is configured to control and manage the actions of the second terminal device. For example, the processing unit 402 is configured to support the second terminal device to perform step 220 in FIG. 2A and/or other processes used in the technology described herein. The communication unit 403 is used to support communication between the network device and other devices. The network device may also include a storage unit 401 for storing program codes and data of the terminal.

The processing unit 402 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), and an application-specific integrated circuit (Application-Specific Integrated Circuit). Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication unit 403 may be a communication interface, a transceiver, a transceiving circuit, etc., and the storage unit 401 may be a memory. When the processing unit 402 is a processor, the communication unit 403 is a communication interface, and the storage unit 401 is a memory, the resource indicating device 400 of secondary link control information involved in the embodiment of the present application may be the second terminal device shown in FIG. 6 .

The processing unit 402 is configured to receive first auxiliary link control information SCI from the first terminal device, where the first SCI is used to indicate a first number of transmission resources and a second number of first HARQ feedback resources, and the first number Two transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device. The second number of first HARQ feedback resources are used for the second terminal device to perform the first HARQ feedback to the first terminal device. The first HARQ feedback result carried on the number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the data of the third terminal device on the first number of transmission resources for the second terminal device HARQ feedback results of transmission conditions.

It can be seen that in this embodiment, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn the resources scheduled by the first terminal device by detecting and decoding the auxiliary link control information. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

In a possible example, the first number of transmission resources includes the second number of transmission resources, and the second number of transmission resources is configured with the second number of first HARQ feedback resources after each transmission resource in a one-to-one correspondence. One of the first HARQ feedback resources in.

In a possible example, the first SCI includes a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, the first time interval indicator field is used to indicate that the first SCI and The time interval between the first transmission resource in the first number of transmission resources; the first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; A time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, the second number of transmission resources is a single transmission resource, and the single transmission resource is a first HARQ feedback resource. The last one of a number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second frequency domain index indicator field; wherein, the first frequency domain resource indicator field is used for Indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources, the frequency domain size of all transmission resources in the first number of transmission resources, and the frequency domain size of all transmission resources Equal; the second time interval indicator field is used to indicate the time interval between the second HARQ feedback resource corresponding to a single transmission resource and a single first HARQ feedback resource; the second frequency domain index indicator field is used to indicate a single first HARQ feedback resource The start position of the frequency domain.

In a possible example, when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, the second number of transmission resources is a single transmission resource, and the single transmission resource is a first HARQ feedback resource. The last one of a number of transmission resources; the first SCI includes: a second frequency domain resource indicator field and a third time interval indicator field; wherein the second frequency domain resource indicator field is used to indicate the first number of transmission resources The frequency domain start position of each transmission resource after the first transmission resource in, the frequency domain size of all transmission resources in the first number of transmission resources, and the frequency domain start position of a single first HARQ feedback resource, all The frequency domains of the transmission resources are equal in size; the third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to a single transmission resource and the single first HARQ feedback resource.

In a possible example, the number of bits in the second frequency domain resource indicator field is obtained by the following calculation:

Where, S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, L represents the maximum number of transmission resources indicated in one SCI configured by high-level signaling, and the transmission resource indicated by the first SCI The number of is less than or equal to L.

In a possible example, when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is any one of the first number of transmission resources; the first SCI further includes: The third frequency domain resource indicator field, the HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and the third frequency domain index indicator field; wherein, the third frequency domain resource indicator field is used to indicate the number of transmission resources in the first number of transmission resources. The frequency domain start position of each transmission resource after the first transmission resource and the frequency domain size of all transmission resources in the first number of transmission resources, the frequency domain size of all transmission resources are the same; the HARQ feedback resource quantity indicator is used In order to indicate that the second number of transmission resources are configured in a one-to-one correspondence, one of the second number of first HARQ feedback resources is configured after each transmission resource; each of the multiple time interval indication domains The time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources and a first HARQ feedback resource configured after the first transmission resource, the first transmission resource Is any one of the second number of transmission resources; the third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources.

In a possible example, the number of bits in the HARQ feedback resource quantity indication field is calculated by calculating the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, L, and the calculation result is equal to L.

In a possible example, each time interval indicator field in the multiple time interval indicator fields indicates the same time interval, and the fourth time interval indicator field in the multiple time interval indicator fields is used to indicate the equal time interval. The four time interval indication field is any one of multiple time interval indication fields.

In a possible example, the number of bits in the third frequency domain index indication domain is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L.

In a possible example, the bearer channel of the first SCI includes one of the following: standalone PSCCH, PSCCH+PSSCH single subchannel.

In a possible example, the channels of the second number of first HARQ feedback resources include one of the following: standalone PSCCH, PSCCH+PSSCH single subchannel.

In a possible example, the processing unit 402 is further configured to send first information to the first terminal device, where the first information is used to request the first number of transmission resources and the second number of first HARQ feedback resources.

In a possible example, the first information includes one of the following: a scheduling request and a buffer status report BSR.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a first terminal device 500 according to an embodiment of the present application, as shown in FIG. 5. The first terminal device 500 includes a processor 510, a memory 520, a communication interface 530, and at least one communication bus for connecting the processor 510, the memory 520, and the communication interface 530.

The memory 520 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM) or portable Read-only memory (compact disc read-only memory, CD-ROM), the memory 520 is used for related instructions and data.

The communication interface 530 is used to receive and send data.

The processor 510 may be one or more central processing units (CPUs). When the processor 510 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 510 in the first terminal device 500 is configured to read one or more program codes 521 stored in the memory 520, and perform the following operations: the first terminal device sends the first SCI to the second terminal device, and the first SCI is used to Indicate the first number of transmission resources and the second number of first HARQ feedback resources, the first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ The feedback resource is used by the second terminal device to perform the first HARQ feedback to the first terminal device, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback The result is the HARQ feedback result of the third terminal device for the data transmission condition of the second terminal device on the first number of transmission resources.

It should be noted that the implementation of each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 2A, and the first terminal device 500 may be used to execute the terminal-side method of the foregoing method embodiment of the present application.

In the first terminal device 500 described in FIG. 5, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn that the first terminal device schedules it by detecting and decoding the auxiliary link control information. H. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a second terminal device 600 according to an embodiment of the present application, as shown in FIG. 6. The second terminal device 600 includes a processor 610, a memory 620, a communication interface 630, and at least one communication bus for connecting the processor 610, the memory 620, and the communication interface 630.

The memory 620 includes, but is not limited to, a random access memory, a read-only memory, an erasable programmable read-only memory, or a portable read-only memory. The memory 620 is used for related instructions and data.

The communication interface 630 is used to receive and send data.

The processor 610 may be one or more central processing units. When the processor 610 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 610 in the second terminal device 600 is configured to read one or more program codes 621 stored in the memory 620, and perform the following operations: receive the first SCI from the first terminal device, and the first SCI is used to indicate the first The number of transmission resources and the second number of first HARQ feedback resources, the first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used The second terminal device performs the first HARQ feedback to the first terminal device, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the first HARQ feedback result. The HARQ feedback results of the three terminals for the data transmission situation of the second terminal device on the first number of transmission resources.

It should be noted that the implementation of each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 2A, and the second terminal device 600 may be used to execute the method on the network device side of the foregoing method embodiment of the present application.

In the second terminal device 600 described in FIG. 6, the first terminal device issues a piece of auxiliary link control information, and the second terminal device can learn that the first terminal device schedules it by detecting and decoding the auxiliary link control information. H. The second terminal device can use the resource to perform secondary link transmission and second HARQ feedback with the third terminal device, and perform first HARQ feedback with the first terminal device according to the second HARQ feedback result. Since the time-frequency domain position information of the scheduled resource is indicated by the secondary link control information, it is beneficial to realize a resource allocation method in which the terminal device schedules resources for other terminal devices.

The embodiment of the present application also provides a chip, wherein the chip includes a processor, which is used to call and run a computer program from the memory, so that the device installed with the chip executes the first terminal device and the first terminal device in the above method embodiment. Part or all of the steps described by the second terminal device.

The embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the method as described in the above method embodiment. Part or all of the steps described by a terminal device and a second terminal device.

The embodiment of the present application also provides a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause a computer to execute the operations performed by the first terminal device and the second terminal device in the foregoing method embodiment. Some or all of the steps described. The computer program product may be a software installation package.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions. Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should be aware that, in one or more of the foregoing examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) )Wait.

The specific implementations described above further describe the purpose, technical solutions, and beneficial effects of the embodiments of the application in detail. It should be understood that the foregoing descriptions are only specific implementations of the embodiments of the application, and are not used for To limit the protection scope of the embodiments of the application, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the application shall be included in the protection scope of the embodiments of the application.

Claims (47)

A resource indication method for auxiliary link control information, which is characterized in that it includes: The first terminal device sends the first auxiliary link control information SCI to the second terminal device, where the first SCI is used to indicate the first number of transmission resources and the second number of first hybrid automatic repeat request HARQ feedback resources, so The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to the The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the first HARQ feedback result. The HARQ feedback result of the third terminal device with respect to the data transmission condition of the second terminal device on the first number of transmission resources. The method according to claim 1, wherein the first number of transmission resources includes a second number of transmission resources, and the second number of transmission resources is configured after each transmission resource in a one-to-one correspondence relationship. There is one first HARQ feedback resource in the second number of first HARQ feedback resources. The method according to claim 2, wherein the first SCI comprises a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, The first time interval indication field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; The first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; The first time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources. The method according to claim 3, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last one of the first number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second time interval indicator field. Two frequency domain index indication domain; among them, The first frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and all of the first number of transmission resources The frequency domain size of the transmission resources, and the frequency domain sizes of all the transmission resources are equal; The second time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource; The second frequency domain index indication field is used to indicate the frequency domain start position of the single first HARQ feedback resource. The method according to claim 3, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last of the first number of transmission resources; the first SCI further includes: a second frequency domain resource indicator field and a third time interval indicator field; in, The second frequency domain resource indicator field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources, and the frequency domain start position of each transmission resource in the first number of transmission resources. The frequency domain size of all transmission resources and the frequency domain start position of the single first HARQ feedback resource, and the frequency domain size of all transmission resources are equal; The third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource. The method according to claim 5, wherein the number of bits of the second frequency domain resource indicator field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The method according to claim 3, wherein when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is the first number of transmissions Any one of the resources; the first SCI further includes: a third frequency domain resource indicator field, a HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and a third frequency domain index indicator field; wherein, The third frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and all the data in the first transmission resource The frequency domain size of the transmission resources, and the frequency domain sizes of all the transmission resources are equal; The HARQ feedback resource quantity indication field is used to indicate that the second quantity of transmission resources are configured with one first HARQ of the second quantity of first HARQ feedback resources after each transmission resource in a one-to-one correspondence relationship. Feedback resources; Each of the multiple time interval indication fields is used to indicate that the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources is configured after the first transmission resource. A time interval between a first HARQ feedback resource, where the first transmission resource is any one of the second number of transmission resources; The third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources. The method according to claim 7, characterized in that the number of bits in the HARQ feedback resource quantity indication field is calculated by calculating the maximum number L of transmission resources indicated in one SCI configured by high-layer signaling, and the calculation result is equal to The L. The method according to claim 7 or 8, wherein the time interval indicated by each of the multiple time interval indicator fields is equal, and the fourth time in the multiple time interval indicator fields The interval indicator field is used to indicate the equal time interval, and the fourth time interval indicator field is any one of the multiple time interval indicator fields. The method according to any one of claims 7-9, wherein the number of bits in the third frequency domain index indication field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The method according to any one of claims 1-10, wherein the bearer channel of the first SCI includes one of the following: a standalone secondary link control channel standalone PSCCH, and a data transmission single subchannel PSCCH+PSSCH single subchannel. The method according to any one of claims 1-11, wherein the channels of the second number of first HARQ feedback resources include one of the following: the standalone PSCCH, and the PSCCH+PSSCH single subchannel. The method according to any one of claims 1-12, further comprising: The first terminal device receives first information from the second terminal device, where the first information is used to request the first number of transmission resources and the second number of first HARQ feedback resources. The method according to claim 13, wherein the first information includes one of the following: a scheduling request SR, and a buffer status report BSR. A resource indication method for auxiliary link control information, which is characterized in that it includes: The second terminal device receives the first SCI from the first terminal device, where the first SCI is used to indicate a first number of transmission resources and a second number of first HARQ feedback resources, and the first number of transmission resources is used for Data and SCI transmission are performed between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to perform the first HARQ feedback to the first terminal device , The first HARQ feedback result carried on the second number of first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is that the third terminal is directed to the second terminal device HARQ feedback results of data transmission conditions on the first number of transmission resources. The method according to claim 15, wherein the first number of transmission resources comprises a second number of transmission resources, and the second number of transmission resources is configured after each transmission resource in a one-to-one correspondence relationship. There is one first HARQ feedback resource in the second number of first HARQ feedback resources. The method according to claim 16, wherein the first SCI comprises a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, The first time interval indication field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; The first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; The first time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources. The method according to claim 17, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last one of the first number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second time interval indicator field. Two frequency domain index indication domain; among them, The first frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and the frequency domain start position of each transmission resource in the first number of transmission resources. The size of the frequency domain of all transmission resources, and the size of the frequency domain of all the transmission resources is equal; The second time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource; The second frequency domain index indication field is used to indicate the frequency domain start position of the single first HARQ feedback resource. The method according to claim 17, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last of the first number of transmission resources; the first SCI further includes: a second frequency domain resource indicator field and a third time interval indicator field; in, The second frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource in the first number of transmission resources, and the frequency domain size of all transmission resources in the first number of transmission resources And the frequency domain start position of the single first HARQ feedback resource, the frequency domain sizes of all the transmission resources are equal; The third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource. The method according to claim 19, wherein the number of bits of the second frequency domain resource indicator field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The method according to claim 17, wherein when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is the first number of transmissions Any one of the resources; the first SCI further includes: a third frequency domain resource indicator field, a HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and a third frequency domain index indicator field; wherein, The third frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and all the data in the first transmission resource The frequency domain size of the transmission resources, and the frequency domain sizes of all the transmission resources are equal; The HARQ feedback resource quantity indication field is used to indicate that the second quantity of transmission resources are configured with one first HARQ of the second quantity of first HARQ feedback resources after each transmission resource in a one-to-one correspondence relationship. Feedback resources; Each of the multiple time interval indication fields is used to indicate that the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources is configured after the first transmission resource. A time interval between a first HARQ feedback resource, where the first transmission resource is any one of the second number of transmission resources; The third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources. The method according to claim 21, wherein the number of bits in the HARQ feedback resource quantity indication field is calculated by calculating the maximum number L of transmission resources indicated in an SCI configured by high-layer signaling, and the calculation result is equal to The L. The method according to claim 22, wherein the time interval indicated by each of the multiple time interval indicator fields is equal, and the fourth time interval indicator in the multiple time interval indicator fields The field is used to indicate the equal time interval, and the fourth time interval indication field is any one of the multiple time interval indication fields. The method according to claim 23, wherein the number of bits in the third frequency domain index indication field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The method according to any one of claims 15-24, wherein the bearer channel of the first SCI includes one of the following: a standalone secondary link control channel standalone PSCCH, and a data transmission single subchannel PSCCH+PSSCH single subchannel. The method according to any one of claims 15-25, wherein the channels of the second number of first HARQ feedback resources include one of the following: the standalone PSCCH, and the PSCCH+PSSCH single subchannel. The method according to any one of claims 15-26, further comprising: The second terminal device sends first information to the first terminal device, where the first information is used to request the first number of transmission resources and the second number of first HARQ feedback resources. The method according to claim 27, wherein the first information includes one of the following: a scheduling request and a buffer status report. A resource indicating device for auxiliary link control information, wherein the device includes a processing unit and a communication unit, and the processing unit is configured to: Sending first auxiliary link control information SCI to the second terminal device through the communication unit, where the first SCI is used to indicate a first number of transmission resources and a second number of first hybrid automatic repeat request HARQ feedback resources, The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to the third terminal device. The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is the The third terminal device feeds back the HARQ result of the data transmission condition of the second terminal device on the first number of transmission resources. The apparatus according to claim 29, wherein the first number of transmission resources comprises a second number of transmission resources, and the second number of transmission resources is configured after each transmission resource in a one-to-one correspondence relationship There is one first HARQ feedback resource in the second number of first HARQ feedback resources. The apparatus according to claim 30, wherein the first SCI comprises a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, The first time interval indication field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; The first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; The first time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources. The apparatus according to claim 31, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last one of the first number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second time interval indicator field. Two frequency domain index indication domain; among them, The first frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and the frequency domain start position of each transmission resource in the first number of transmission resources. The size of the frequency domain of all transmission resources, and the size of the frequency domain of all the transmission resources is equal; The second time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource; The second frequency domain index indication field is used to indicate the frequency domain start position of the single first HARQ feedback resource. The apparatus according to claim 31, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last of the first number of transmission resources; the first SCI further includes: a second frequency domain resource indicator field and a third time interval indicator field; in, The second frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource in the first number of transmission resources, and the frequency domain size of all transmission resources in the first number of transmission resources And the frequency domain start position of the single first HARQ feedback resource, the frequency domain sizes of all the transmission resources are equal, and the number of bits of the second frequency domain resource indicator field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L; The third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource. The apparatus according to claim 31, wherein, when the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is the first number of transmissions Any one of the resources; the first SCI further includes: a third frequency domain resource indicator field, a HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and a third frequency domain index indicator field; wherein, The third frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource in the first number of transmission resources and the frequency domain size of all transmission resources in the first number of transmission resources , The frequency domain sizes of all the transmission resources are equal; The HARQ feedback resource quantity indication field is used to indicate that the second quantity of transmission resources are configured with one first HARQ of the second quantity of first HARQ feedback resources after each transmission resource in a one-to-one correspondence relationship. Feedback resources, the number of bits in the HARQ feedback resource quantity indication field is calculated through the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, L, and the calculation result is equal to the L; Each of the multiple time interval indication fields is used to indicate that the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources is configured after the first transmission resource. A time interval between a first HARQ feedback resource, where the first transmission resource is any one of the second number of transmission resources; The third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources, and the third frequency domain index indicates the bits of the domain The number is calculated as follows:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The apparatus according to claim 34, wherein the time interval indicated by each time interval indicator field in the plurality of time interval indicator fields is equal, and the fourth time interval indicator in the plurality of time interval indicator fields indicates The field is used to indicate the equal time interval, and the fourth time interval indication field is any one of the multiple time interval indication fields. A resource indicating device for auxiliary link control information, wherein the device includes a processing unit and a communication unit, and the processing unit is configured to: Receive first auxiliary link control information SCI from the first terminal device through the communication unit, where the first SCI is used to indicate a first number of transmission resources and a second number of first hybrid automatic repeat request HARQ feedback resources , The first number of transmission resources are used for data and SCI transmission between the second terminal device and the third terminal device, and the second number of first HARQ feedback resources are used for the second terminal device to transmit data to The first terminal device performs the first HARQ feedback, the first HARQ feedback result carried on the second number of the first HARQ feedback resources is determined according to the second HARQ feedback result, and the second HARQ feedback result is The HARQ feedback result of the third terminal device with respect to the data transmission condition of the second terminal device on the first number of transmission resources. The apparatus according to claim 36, wherein the first number of transmission resources comprises a second number of transmission resources, and the second number of transmission resources are configured after each transmission resource in a one-to-one correspondence relationship. There is one first HARQ feedback resource in the second number of first HARQ feedback resources. The apparatus according to claim 37, wherein the first SCI comprises a first time domain interval indicator field, a first frequency domain index indicator field, and a first time domain resource indicator field; wherein, The first time interval indication field is used to indicate the time interval between the first SCI and the first transmission resource in the first number of transmission resources; The first frequency domain index indication field is used to indicate the frequency domain start position of the first transmission resource in the first number of transmission resources; The first time domain resource indication field is used to indicate the time domain resource location of each transmission resource after the first transmission resource in the first number of transmission resources. The apparatus according to claim 38, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last one of the first number of transmission resources; the first SCI also includes: a first frequency domain resource indicator field, a second time interval indicator field, and a second time interval indicator field. Two frequency domain index indication domain; among them, The first frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource after the first transmission resource in the first number of transmission resources and the frequency domain start position of each transmission resource in the first number of transmission resources. The size of the frequency domain of all transmission resources, and the size of the frequency domain of all the transmission resources is equal; The second time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource; The second frequency domain index indication field is used to indicate the frequency domain start position of the single first HARQ feedback resource. The apparatus according to claim 38, wherein when the second number is 1, the second number of first HARQ feedback resources is a single first HARQ feedback resource, and the second number of HARQ feedback resources is a single first HARQ feedback resource. The transmission resource is a single transmission resource, and the single transmission resource is the last of the first number of transmission resources; the first SCI further includes: a second frequency domain resource indicator field and a third time interval indicator field; in, The second frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource in the first number of transmission resources, and the frequency domain size of all transmission resources in the first number of transmission resources And the frequency domain start position of the single first HARQ feedback resource, the frequency domain sizes of all the transmission resources are equal, and the number of bits of the second frequency domain resource indicator field is obtained by the following calculation:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the data transmission sub-channel of the first terminal device, and the L represents the maximum number of transmission resources indicated in one SCI configured by high-layer signaling , The number of transmission resources indicated by the first SCI is less than or equal to the L; The third time interval indication field is used to indicate the time interval between the second HARQ feedback resource corresponding to the single transmission resource and the single first HARQ feedback resource. The apparatus according to claim 38, wherein, in the case that the second number is greater than or equal to 1, each transmission resource in the second number of transmission resources is the first number of transmissions Any one of the resources; the first SCI further includes: a third frequency domain resource indicator field, a HARQ feedback resource quantity indicator field, multiple time interval indicator fields, and a third frequency domain index indicator field; wherein, The third frequency domain resource indication field is used to indicate the frequency domain start position of each transmission resource in the first number of transmission resources and the frequency domain size of all transmission resources in the first number of transmission resources , The frequency domain sizes of all the transmission resources are equal; The HARQ feedback resource quantity indication field is used to indicate that the second quantity of transmission resources are configured with one first HARQ of the second quantity of first HARQ feedback resources after each transmission resource in a one-to-one correspondence relationship. Feedback resources, the number of bits in the HARQ feedback resource quantity indication field is calculated through the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, L, and the calculation result is equal to the L; Each of the multiple time interval indication fields is used to indicate that the second HARQ feedback resource corresponding to the first transmission resource in the second number of transmission resources is configured after the first transmission resource. A time interval between a first HARQ feedback resource, where the first transmission resource is any one of the second number of transmission resources; The third frequency domain index indication field is used to indicate the frequency domain start position of each first HARQ feedback resource in the second number of first HARQ feedback resources, and the third frequency domain index indicates the bits of the domain The number is calculated as follows:

Wherein, the S represents the number of data transmission sub-channels included in a set of resources acquired by the first terminal device, the L represents the maximum number of transmission resources indicated in an SCI configured by high-layer signaling, and the first The number of transmission resources indicated by an SCI is less than or equal to the L. The device according to claim 41, wherein the time interval indicated by each of the multiple time interval indicator fields is equal, and the fourth time interval indicator in the multiple time interval indicator fields The field is used to indicate the equal time interval, and the fourth time interval indication field is any one of the multiple time interval indication fields. A terminal device, the terminal device being a first terminal device, characterized by comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory, And is configured to be executed by the processor, and the program includes instructions for executing the steps in the method according to any one of claims 1-14. A terminal device, the terminal device being a second terminal device, characterized by comprising a processor, a memory, a communication interface, and one or more programs, and the one or more programs are stored in the memory, And configured to be executed by the processor, the program includes instructions for executing the steps in the method according to any one of claims 15-28. A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the method described in any one of claims 1-14 or 15-28 method. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-14 or 15-28 . A computer program that causes a computer to execute the method according to any one of claims 1-14 or 15-28.

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