WO2021027563A1

WO2021027563A1 - Method for sending sidelink harq-ack, method for determining psfch resource, and device

Info

Publication number: WO2021027563A1
Application number: PCT/CN2020/105204
Authority: WO
Inventors: 张轶; 夏亮; 王启星
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2019-08-14
Filing date: 2020-07-28
Publication date: 2021-02-18
Also published as: CN112398594A

Abstract

Embodiments of the present disclosure provide a method for sending sidelink HARQ-ACK, a method for determining a PSFCH resource, and a device. The method comprises: determining a first PUCCH resource according to PUCCH configuration information and/or DCI sent by a network side; determining an HARQ codebook according to a first identifier or according to an indication of the network side, the first identifier being used for indicating priority information of a sidelink data packet, or QoS; and sending the HARQ codebook on the first PUCCH resource.

Description

SIDELINK HARQ-ACK transmission method, PSFCH resource determination method and equipment

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910749230.0 filed in China on August 14, 2019, the entire content of which is incorporated herein by reference.

Technical field

The embodiments of the present disclosure relate to the field of communication technology, and in particular to a method for sending a direct link (Sidelink, SL) hybrid automatic repeat request acknowledgement (HARQ-ACK), and a physical direct link feedback channel (Physical). Sidelink Feedback Channel (PSFCH) resource determination method and equipment.

Background technique

In order to reuse the relevant design in the New Radio (NR) as much as possible, Sidelink HARQ-ACK may be reported on the Physical Uplink Control Channel (PUCCH), so the multi-service priority sidelink HARQ-ACK How to report through the Uu interface (the interface between the terminal and the base station) is an urgent problem to be solved.

Different Sidelink services have different delay and reliability requirements. If the same PSFCH resource determination mechanism is used, the requirements of different services cannot be guaranteed, or a certain amount of resource waste will be caused. Therefore, how to transmit SFCI with multiple service priorities on Sidelink is an urgent problem to be solved.

Summary of the invention

The embodiments of the present disclosure provide a method for sending sidelink HARQ-ACK, a method and device for determining PSFCH resources, and solve the problem of how Sidelink HARQ-ACK with multiple service priorities is reported through a Uu interface, and a direct link with multiple service priorities How to transmit feedback control information (Sidelink feedback control information, SFCI) on Sidelink.

According to the first aspect, the embodiments of the present disclosure provide a sidelink HARQ-ACK sending method, including: determining the first PUCCH resource according to PUCCH configuration information and/or DCI sent by the network side;

Determine the HARQ codebook according to the first identifier, or according to instructions from the network side, where the first identifier is used to indicate priority information or QoS of the sidelink data packet; the HARQ codebook includes sidelink HARQ-ACK;

Send the HARQ codebook on the first PUCCH resource.

Optionally, determining the HARQ codebook according to the first identifier includes: determining the HARQ codebook according to the first identifier and the mapping relationship between the first identifier and the HARQ codebook.

Optionally, the mapping relationship between the first identifier and the HARQ codebook is agreed in advance by a protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-level signaling.

Optionally, determining the HARQ codebook according to the first identifier includes: determining the HARQ codebook according to the first identifier and a preset threshold.

Optionally, determining the HARQ codebook according to the first identifier and the preset threshold includes:

If the first identifier is less than a first preset threshold, determine that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is less than or equal to a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is greater than a first preset threshold, determine that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is greater than or equal to a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is less than a second preset threshold, determining that the HARQ codebook is a second HARQ codebook;

or,

If the first identifier is less than or equal to the second preset threshold, determining that the HARQ codebook is the second HARQ codebook;

or,

If the first identifier is greater than a second preset threshold, determining that the HARQ codebook is a second HARQ codebook;

or,

If the first identifier is greater than or equal to the second preset threshold, it is determined that the HARQ codebook is the second HARQ codebook.

Optionally, the first threshold value or the second threshold value is agreed in advance by a protocol; or, the first threshold value or the second threshold value is configured by the network side through high-layer signaling.

Optionally, determining the HARQ codebook according to instructions from the network side includes:

Receiving first indication information sent by the network side, where the first indication information indicates the HARQ codebook used by the terminal;

According to the first indication information, the HARQ codebook is determined.

Optionally, the first indication information is any one of the following:

The DCI format of the downlink control information for scheduling sidelink data;

Radio network temporary identifier RNTI used to scramble DCI for scheduling sidelink data;

The first indication field in the DCI for scheduling sidelink data, where the first indication field is used to indicate the HARQ codebook corresponding to the sidelink data scheduled by the DCI.

Optionally, the first indication information is generated by the network side according to priority information and/or quality of service QoS information reported by the terminal.

Optionally, the HARQ codebook includes one or more of the following:

HARQ codebook based on time slot;

HARQ codebook based on sub-slots.

In the second aspect, the embodiments of the present disclosure also provide a method for determining PSFCH resources, including:

Receiving second indication information, where the second indication information is used to indicate the priority or the quality of service of the data packet on the physical direct link shared channel PSSCH scheduled by the direct link control information SCI;

According to the second indication information, one or more of the PSFCH resource pool or resource set, the format of the PSFCH, the frequency domain resources of the PSFCH, and the code domain resources of the PSFCH are determined.

Optionally, determining one or more of the PSFCH resource pool or resource set, PSFCH format, PSFCH frequency domain resources, and PSFCH code domain resources according to the second indication information includes:

According to the second indication information, determine a PSFCH resource pool or a resource set from at least one PSFCH resource pool or resource set configured, or,

According to the second indication information, determine a PSFCH format from the configured PSFCH resource pool or PSFCH resource set, or,

According to the second indication information, the frequency domain resources of the PSFCH and/or the code domain resources of the PSFCH are determined from the configured PSFCH resource pool or PSFCH resource set.

Optionally, the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured on the network side through high-level signaling.

Optionally, the receiving the second indication information includes:

Receiving an SCI, where the SCI includes the second indication information.

In a third aspect, embodiments of the present disclosure further provide a terminal, including: a first processor and a first transceiver, where the first processor is configured to: determine the first processor according to the PUCCH configuration information and/or DCI sent by the network side PUCCH resources; and determine the HARQ codebook according to a first identifier or an instruction from the network side, where the first identifier is used to indicate the priority information or QoS of the sidelink data packet; the first transceiver is used to: Sending the HARQ codebook on the first PUCCH resource.

In a fourth aspect, embodiments of the present disclosure also provide a terminal, including: a first determining module, a second determining module, and a sending module, where the first determining module is configured to: according to PUCCH configuration information and/or downlink sent by the network side The control information DCI determines the first PUCCH resource; the second determining module is used to determine the HARQ codebook according to the first identifier or according to the instructions from the network side, and the first identifier is used to indicate the priority of the sidelink data packet Information, or QoS; the HARQ codebook includes sidelink HARQ-ACK; the sending module is configured to send the HARQ codebook on the first PUCCH resource.

In a fifth aspect, embodiments of the present disclosure also provide a terminal, including: a second transceiver and a second processor, where the second transceiver is configured to receive second instruction information, and the second instruction information is used to indicate The priority or quality of service of the data packet on the physical direct link shared channel PSSCH scheduled by the direct link control information; the second processor is configured to: determine the PSFCH resource pool or resource set, PSFCH according to the second indication information One or more of the format, PSFCH frequency domain resources, and PSFCH code domain resources.

In a sixth aspect, the embodiments of the present disclosure further provide a terminal, including: a second receiving module and a fourth determining module, the second receiving module is configured to receive second indication information, the second indication information is used to indicate The priority or quality of service of the data packet on the physical direct link shared channel PSSCH scheduled by the direct link control information; the fourth determining module is configured to: determine the PSFCH resource pool or resource set according to the second indication information, One or more of PSFCH format, PSFCH frequency domain resources, and PSFCH code domain resources.

In a seventh aspect, the embodiments of the present disclosure also provide a terminal, including: a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is implemented when the processor is executed The steps of the method for transmitting HARQ-ACK as described above; or the steps of the method for determining PSFCH resources as described above.

In an eighth aspect, the embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the HARQ-ACK transmission as described above is realized The steps of the method; or, the steps of the method for determining PSFCH resources as described above.

In some embodiments of the present disclosure, it can be ensured that the delay and reliability of Sidelink HARQ-ACK of different services are satisfied. In other embodiments of the present disclosure, it can be ensured that the delay and reliability requirements of SFCI of different services are met.

Description of the drawings

By reading the detailed description of the optional embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only used for the purpose of showing alternative embodiments, and are not considered as a limitation to the present disclosure. Also, throughout the drawings, the same reference symbols are used to denote the same components. In the attached picture:

Figure 1 is a schematic diagram of the sender reporting sidelink HARQ-ACK to the base station;

FIG. 2 is one of the flowcharts of the sidelink HARQ-ACK sending method according to an embodiment of the disclosure;

3 is a flowchart of a method for determining PSFCH resources according to an embodiment of the disclosure;

FIG. 4 is one of the schematic diagrams of the terminal of the embodiment of the disclosure;

FIG. 5 is a second schematic diagram of a terminal according to an embodiment of the disclosure;

FIG. 6 is the third schematic diagram of a terminal according to an embodiment of the disclosure;

FIG. 7 is a fourth schematic diagram of a terminal according to an embodiment of the disclosure;

FIG. 8 is a fifth schematic diagram of a terminal according to an embodiment of the disclosure.

detailed description

1. Related technology 1: sidelink HARQ-ACK is transmitted in Uu.

(1) Regarding the NR Vehicle-to-Everything (V2X) Mode 1 (mode-1) HARQ-ACK transmission method: see Figure 1, which shows the NR V2X mode-1 sidelink HARQ-ACK transmission, the specific steps as follows:

Step 1: The transmitter (transmitter) sends a scheduling request (Scheduling Request, SR) and a sidelink buffer status report (Buffer Status Report, BSR) to the base station;

Step 2: The base station (gNB) sends DCI to the transmitter for resource allocation;

Step 3: The transmitter sends the SCI and data (data) on the corresponding resource according to the sidelink grant issued by the received base station;

Step 4: The receiver (receiver) blindly detects the sidelink control information (SCI), receives the data, and sends the SFCI to the transmitter;

Step 5: The transmitter sends a sidelink HARQ-ACK to the base station and applies for retransmission resources from the base station;

Step 6: The base station issues DCI to the transmitter to schedule retransmission.

(2) Long Term Evolution (LTE)-Near Field Communication Priority (PPPP) of data packets in V2X:

There are 8 types of LTE V2X PPPP, which are generated by the application layer, and reported by the terminal to the base station priority information to reflect PPPP. The base station can derive the delay budget of the corresponding packet through priority information;

The LTE SCI format 1 contains 3-bit priority information, which is used for terminal sensing (sensing) and other purposes.

NR will reuse the idea of PPPP and the design of QoS flow to generate, for example, PFI identifiers (PC5 QoS Flow Identifiers), which are used to characterize service priority and QoS requirements.

2. Related technology 2: Sidelink HARQ-ACK is transmitted in sidelink/PC5.

It supports at least one sequence-based Physical Sidelink Feedback Channel (PSFCH) format. Other types of PSFCH formats need to be further studied (For Further Study, FFS).

How to determine PSFCH resources:

The time gap between the PSFCH and the associated PSSCH is pre-configured ((pre-)configuration).

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The term "comprising" in the specification and claims of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to clear Instead, those steps or units listed below may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment. In addition, the use of "and/or" in the specification and claims means at least one of the connected objects, such as A and/or B, which means that A and B alone are included, and there are three cases for both A and B.

In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The technology described in this article is not limited to the fifth-generation mobile communication (5th-generation, 5G) system and subsequent evolved communication systems, and is not limited to the LTE/LTE evolution (LTE-Advanced, LTE-A) system, and can also be used for various A kind of wireless communication system, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems.

The terms "system" and "network" are often used interchangeably. The CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. The TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM). OFDMA system can realize such as ultra mobile broadband (Ultra Mobile Broadband, UMB), evolved UTRA ((Evolution-UTRA, E-UTRA)), IEEE 802.11 ((Wi-Fi)), IEEE 802.16 ((WiMAX)), IEEE 802.20, Flash-OFDM and other radio technologies. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE (such as LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The technology described in this article can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies.

Referring to FIG. 2, an embodiment of the present disclosure provides a HARQ-ACK sending method, which is applicable to a terminal, such as a sending end, and specific steps include: step 201, step 202, and step 203.

Step 201: Determine the first PUCCH resource according to the PUCCH configuration information and/or DCI sent by the network side.

Step 202: Determine the HARQ codebook according to the first identifier or the instruction from the network side. The first identifier is used to indicate priority information or QoS of the sidelink data packet, and the HARQ codebook includes the sidelink HARQ-ACK;

In some implementation manners, first indication information sent by the network side is received, where the first indication information indicates the HARQ codebook used by the terminal; and the HARQ codebook is determined according to the first indication information.

Step 203: Send the HARQ codebook on the first PUCCH resource.

In some implementations, the HARQ codebook includes one or more of the following: (1) slot-based HARQ codebook; (2) sub-slot based HARQ Codebook.

In some embodiments, the HARQ codebook is determined according to the first identifier and the mapping relationship between the first identifier and the HARQ codebook. Further, the mapping relationship between the first identifier and the HARQ codebook is pre-arranged by a protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-level signaling.

Optionally, the mapping relationship between the first identifier and the HARQ codebook can be found in Table 1. It should be noted that the HARQ codebook shown in Table 1 includes HARQ codebook 1 and HARQ codebook 2, and other situations are similar. Let me explain.

Table 1:

第一标识First logo	HARQ codebookHARQ codebook
11	HARQ codebook 1HARQ codebook 1
22	HARQ codebook 2HARQ codebook 2
33	HARQ codebook 1HARQ codebook 1
44	HARQ codebook 2HARQ codebook 2
55	HARQ codebook 1HARQ codebook 1
66	HARQ codebook 2HARQ codebook 2
77	HARQ codebook 1HARQ codebook 1
88	HARQ codebook 2HARQ codebook 2

In some embodiments, the HARQ codebook is determined according to the first identifier and the preset threshold value. For example: through the following methods:

or,

If the first identifier is greater than a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

Further, the first threshold value or the second threshold value is agreed in advance by a protocol; or, the first threshold value or the second threshold value is configured by the network side through high-layer signaling.

It is understandable that the first threshold value and the second threshold value may be the same or different, and the first threshold value and the second threshold value are not specifically limited in the embodiment of the present disclosure.

In some embodiments, the first indication information is any one of the following:

(1) The DCI format for scheduling sidelink data.

For example, there may be two DCI formats for scheduling sidelink data, including: DCI format 1 and DCI format 2. When a terminal receives DCI format 1, the HARQ codebook corresponding to its scheduled sidelink data is the first HARQ codebook; When DCI format 2 is received, the HARQ codebook corresponding to the scheduled sidelink data is the second HARQ codebook.

(2) Radio Network Temporary Identifier (RNTI) used to scramble the DCI for scheduling sidelink data.

For example, there may be two RNTIs used to scramble the DCI for scheduling sidelink data, including: the first RNTI and the second RNTI. When the terminal receives the DCI scheduling sidelink data scrambled by the first RNTI, the scheduled sidelink data corresponds to The HARQ codebook of is the first HARQ codebook; when the terminal receives the DCI scheduled sidelink data scrambled by the second RNTI, the HARQ codebook corresponding to the scheduled sidelink data is the second HARQ codebook.

(3) The first indication field in the DCI for scheduling sidelink data, where the first indication field is used to indicate the HARQ codebook corresponding to the sidelink data scheduled by the DCI.

For example, the first indicator field in the DCI for scheduling sidelink data contains 1 bit, and the terminal receives the DCI for scheduling sidelink data, and when the first indicator field contained in it is "0", the HARQ codebook corresponding to the scheduled sidelink data is The first HARQ codebook, when the first indication field contained in it is "1", the HARQ codebook corresponding to the scheduled sidelink data is the second codebook.

In some implementation manners, the first indication information is generated by the network side according to priority information and/or QoS information reported by the terminal.

In the embodiments of the present disclosure, it can be ensured that the delay and reliability of Sidelink HARQ-ACKs of different services are satisfied.

Referring to FIG. 3, an embodiment of the present disclosure also provides a method for determining PSFCH resources, which is applicable to a terminal, such as a receiving end, and specific steps include: step 301 and step 302.

Step 301: Receive second indication information, where the second indication information is used to indicate the priority or the quality of service of the data packet on the physical through link shared channel PSSCH scheduled by the through link control information (Sidelink Control Information, SCI) ( QoS);

For example: receiving an SCI, and the SCI includes the second indication information.

Step 302: Determine one or more of the PSFCH resource pool or resource set, PSFCH format, PSFCH frequency domain resources, and PSFCH code domain resources according to the second indication information.

In some implementations, according to the second indication information, a PSFCH resource pool or a resource set is determined from at least one PSFCH resource pool or resource set configured, or, according to the second indication information, a PSFCH resource pool or a resource set is determined Determine a PSFCH format in the PSFCH resource pool or PSFCH resource set, or determine the PSFCH frequency domain resource and/or PSFCH code from the configured PSFCH resource pool or PSFCH resource set according to the second indication information Domain resources.

In some embodiments, the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured by the network side through high-level signaling.

In the embodiments of the present disclosure, it can be ensured that the delay and reliability requirements of the SFCI of different services are met.

The following describes the HARQ-ACK transmission method and the PSFCH resource determination method of the embodiments of the present disclosure in combination with Example 1, Example 2, and Example 3.

Example 1: Regarding the sending method of multi-service priority sidelink HARQ-ACK:

Configure the mapping relationship between the first identifier and the HARQ codebook in a predefined manner or in a manner configured by the base station through high-level signaling.

Optionally, the first identifier includes one or more of the following: PFI identifier (PC5 QoS Flow Identifiers), PPPP, etc., used to characterize the QoS requirements of the service/data packet corresponding to the HARQ codebook, specifically including the following methods :

-Configure the first identification threshold in a predefined way, or the base station through high-level signaling configuration, when the first identification corresponding to the data packet is lower or higher than the first threshold, use the first HARQ codebook, when the first identifier corresponding to the data packet is higher or lower than the second threshold, the second HARQ codebook is used.

-The first HARQ codebook or the second HARQ codebook includes one or more of the following: slot-based HARQ codebook and corresponding HARQ-ACK related PUCCH configuration, sub-slot based HARQ codebook method and corresponding HARQ-ACK related PUCCH configuration.

-Configure the mapping table between the first identifier and the HARQ codebook in a predefined manner, or the base station through high-layer signaling configuration, see Table 1.

The terminal determines the HARQ codebook used and the corresponding PUCCH configuration according to the first identifier corresponding to the data packet.

Example 2: About the sending method of multi-service priority sidelink HARQ-ACK:

The base station determines the codebook used by the sidelink HARQ-ACK according to the priority and PFI identifier (PC5QoS Flow Identifiers) reported by the terminal, and indicates the HARQ codebook used by the terminal through the physical layer downlink control information for scheduling the sidelink data. The specific implementation is as follows:

-For example, there are at least two DCI formats for scheduling sidelink data: DCI format 5A and DCI format 5B. When using DCI format 5A to schedule sidelink data, use the first HARQ codebook. When using DCI format 5B to schedule sidelink data, use the first HARQ codebook. Two HARQ codebook;

-For example, there are at least two RNTIs used to scramble the DCI for scheduling sidelink data. When using RNTI 1 to scramble the DCI for scheduling sidelink data, use the first HARQ codebook; when using RNTI 2 to scramble the DCI for scheduling sidelink data , Use the second HARQ codebook;

-For example, the HARQ codebook indication field is added to the DCI for scheduling sidelink data to indicate that the HARQ-ACK corresponding to the sidelink data scheduled by the DCI uses the first HARQ codebook or the second HARQ codebook

-The UE determines the HARQ codebook used and the corresponding PUCCH configuration information according to the instructions of the base station

In Example 1 and Example 2, the mapping relationship between PC5QoS Flow Identifier and sidelink HARQ codebook is configured, or different DCI formats, RNTIs, etc. are used to schedule sidelink data to ensure the sidelink HARQ-ACK delay of different services. Reliability is satisfied.

Example 3: Regarding the PSFCH resource determination method based on the first information:

The first information is included in Sidelink Control Information (SCI), and is used to indicate the priority of the data packet on the PSSCH scheduled by it;

-Configure multiple PSFCH resource pools/resource sets for the receiving end in a predefined way, or the base station/transmitting end through high-level signaling configuration, and the receiving end determines which of them from the multiple resource pools configured according to the first information A PSFCH resource pool/resource collection; or

-Configure the PSFCH resource pool/resource set for the receiving end in a predefined way, or the base station/sending end through high-level signaling configuration, and the receiving end determines the PSFCH from the configured resource pool/resource set according to the first information Format; or

-Configure the PSFCH resource pool/resource set for the receiver in a predefined way, or by the base station/sender through high-level signaling configuration, and the receiver determines the frequency domain/of the PSFCH from the configured resource pool according to the first information. Code domain resources.

In Example 3, the PSFCH resource/PSFCH format is implicitly determined by priority to ensure that the delay and reliability requirements of the SFCI of different services are met.

The embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the HARQ-ACK transmission method in the embodiment of the present disclosure, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated. .

4, an embodiment of the present disclosure also provides a terminal. The terminal 400 includes a first processor 401 and a first transceiver 402. The first processor 401 is configured to: according to the PUCCH configuration information sent by the network side and/ Or DCI, determine the first PUCCH resource; and determine the HARQ codebook according to the first identifier, or according to the instructions of the network side, the first identifier is used to indicate the priority information or QoS of the sidelink data packet, the HARQ codebook includes sidelink HARQ-ACK;; the first transceiver 402 is configured to: send the HARQ codebook on the first PUCCH resource.

In some embodiments, the first identifier is used to indicate the priority information of the sidelink data packet, or the quality of service QoS.

In some embodiments, the first processor 401 is further configured to: determine the HARQ codebook according to the first identifier and the mapping relationship between the first identifier and the HARQ codebook.

In some embodiments, the mapping relationship between the first identifier and the HARQ codebook is pre-arranged by the protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-level signaling of.

In some embodiments, the first processor 401 is further configured to: determine the HARQ codebook according to the first identifier and a preset threshold value.

In some embodiments, the first processor 401 is further configured to:

or,

If the first identifier is greater than or equal to the second preset threshold, it is determined that the HARQ codebook is the second HARQ codebook. In some implementation manners, the first threshold value or the second threshold value is agreed in advance by a protocol; or, the first threshold value or the second threshold value is configured by the network side through high-layer signaling.

In some embodiments, the first transceiver 402 is further configured to: receive first indication information sent by the network side, where the first indication information indicates the HARQ codebook used by the terminal; the first processor 401 is further configured to: The first indication information determines the HARQ codebook.

DCI format of scheduling sidelink data;

RNTI used to scramble DCI for scheduling sidelink data;

In some implementation manners, the first indication information is generated by the network side according to priority information and/or quality of service QoS information reported by the terminal.

In some embodiments, the HARQ codebook includes one or more of the following: a slot-based HARQ codebook; and a sub-slot-based HARQ codebook.

The terminal provided in the embodiments of the present disclosure can execute the above-mentioned embodiments, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.

Referring to FIG. 5, an embodiment of the present disclosure also provides a terminal. The terminal 500 includes: a first determining module 501, a second determining module 502, and a sending module 503. The first determining module 501 is configured to: PUCCH configuration information and/or downlink control information DCI determine the first PUCCH resource; the second determining module 502 is configured to: determine the HARQ codebook according to the first identifier, or according to the instructions from the network side, and the first identifier is used to indicate Priority information of the sidelink data packet, or QoS; the sending module 503 is configured to send the HARQ codebook on the first PUCCH resource.

In some embodiments, the second determining module 502 is further configured to determine the HARQ codebook according to the first identifier and the mapping relationship between the first identifier and the HARQ codebook.

In some embodiments, the second determining module 502 is further configured to determine the HARQ codebook according to the first identifier and the preset threshold value.

In some embodiments, the second determining module 502 is further configured to: if the first identifier is less than, or less than or equal to, or greater than, or greater than or equal to a first preset threshold, determine that the HARQ codebook is the first A HARQ codebook; or, if the first identifier is less than, or less than or equal to, or greater than, or greater than or equal to a second preset threshold value, determine that the HARQ codebook is the second HARQ codebook.

In some implementation manners, the first threshold value or the second threshold value is agreed in advance by a protocol; or, the first threshold value or the second threshold value is configured by the network side through high-layer signaling.

In some embodiments, the terminal further includes a first receiving module configured to: receive first indication information sent by the network side, the first indication information indicating the HARQ codebook used by the terminal; The module 502 is further configured to determine the HARQ codebook according to the first indication information.

DCI format of scheduling sidelink data;

RNTI used to scramble DCI for scheduling sidelink data;

The embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the method for determining the PSFCH resource in the embodiment of the present disclosure, the implementation of the terminal may refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 6, an embodiment of the present disclosure also provides a terminal. The terminal 600 includes a second transceiver 601 and a second processor 602. The second transceiver 601 is configured to receive second indication information. 2. The indication information is used to indicate the priority or quality of service of the data packet on the PSSCH scheduled by the direct link control information; the second processor 602 is used to: determine the PSFCH resource pool or resource set according to the second indication information , One or more of PSFCH format, PSFCH frequency domain resources and PSFCH code domain resources.

In some embodiments, the second processor 602 is further configured to: determine a PSFCH resource pool or a resource set from at least one PSFCH resource pool or resource set configured according to the second indication information, or The second indication information determines a PSFCH format from the configured PSFCH resource pool or PSFCH resource set, or, according to the second indication information, determines the PSFCH format from the configured PSFCH resource pool or PSFCH resource set Frequency domain resources and/or PSFCH code domain resources.

In some embodiments, the second transceiver 601 is further configured to receive an SCI, where the SCI includes the second indication information.

Referring to FIG. 7, an embodiment of the present disclosure also provides a terminal. The terminal 700 includes a second receiving module 701 and a fourth determining module 702. The second receiving module 701 is configured to receive second indication information. The information is used to indicate the priority or the quality of service of the data packet on the PSSCH scheduled by the through link control information; the fourth determining module 702 is used to determine the PSFCH resource pool or resource set, and the format of the PSFCH according to the second indication information , One or more of PSFCH frequency domain resources and PSFCH code domain resources.

In some embodiments, the fourth determining module 702 is further configured to: determine a PSFCH resource pool or a resource set from at least one PSFCH resource pool or resource set configured according to the second indication information, or The second indication information determines a PSFCH format from the configured PSFCH resource pool or PSFCH resource set, or, according to the second indication information, determines the PSFCH format from the configured PSFCH resource pool or PSFCH resource set Frequency domain resources and/or PSFCH code domain resources.

In some embodiments, the second receiving module 701 is further configured to receive an SCI, where the SCI includes the second indication information.

As shown in FIG. 8, the terminal 800 shown in FIG. 8 includes: at least one processor 801, a memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal 800 are coupled together through the bus system 805. It can be understood that the bus system 805 is used to implement connection and communication between these components. In addition to the data bus, the bus system 805 also includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are marked as the bus system 805 in FIG. 8.

Wherein, the user interface 803 may include a display, a keyboard or a pointing device (for example, a mouse, a trackball (trackball), a touch panel or a touch screen, etc.).

It can be understood that the memory 802 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) And Direct Rambus RAM (DRRAM). The memory 802 of the system and method described in the embodiments of the present disclosure is intended to include but not limited to these and any other suitable types of memory.

In some embodiments, the memory 802 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 8021 and application programs 8022.

Among them, the operating system 8021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, which are used to implement various basic services and process hardware-based tasks. The application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiments of the present disclosure may be included in the application 8022.

In an embodiment of the present disclosure, by calling a program or instruction stored in the memory 802, specifically, a program or instruction stored in the application program 8022, the steps described in the above method are implemented when executed.

The terminal provided in the embodiment of the present disclosure can execute the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.

The steps of the method or algorithm described in connection with the disclosure of the present disclosure may be implemented in a hardware manner, or may be implemented in a manner of executing software instructions on a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disks, mobile hard disks, read-only optical disks, 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 can 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 can be carried in an ASIC. In addition, the ASIC can be carried in the core network interface device. Of course, the processor and the storage medium may also exist as discrete components in the core network interface device.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the present disclosure can be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium. The computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

The specific implementations described above further describe the purpose, technical solutions and beneficial effects of the present disclosure in further detail. It should be understood that the foregoing are only specific implementations of the present disclosure and are not intended to limit the disclosure. The protection scope, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present disclosure shall be included in the protection scope of the present disclosure.

Those skilled in the art should understand that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the embodiments of the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present disclosure may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

It can be understood that the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, units, modules, sub-units and sub-modules can be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (Digital Signal Processing, DSP), and digital signal processing equipment (DSP Device). , DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and Disclosure of the described functions in other electronic units or combinations thereof.

For software implementation, the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.

The embodiments of the present disclosure are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the present disclosure. In this way, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

A method for sending the HARQ-ACK of a direct link sidelink hybrid automatic repeat request response, including:

Determine the first PUCCH resource according to physical uplink control channel PUCCH configuration information and/or downlink control information DCI sent by the network side;

Determine the HARQ codebook according to the first identifier, or according to instructions from the network side, where the first identifier is used to indicate the priority information of the sidelink data packet or the quality of service QoS; the HARQ codebook includes the sidelink HARQ-ACK;

Send the HARQ codebook on the first PUCCH resource.
The method according to claim 1, wherein determining the HARQ codebook according to the first identifier comprises:

Determine the HARQ codebook according to the first identifier and the mapping relationship between the first identifier and the HARQ codebook.
The method of claim 2, wherein:

The mapping relationship between the first identifier and the HARQ codebook is pre-arranged in the agreement; or,

The mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-layer signaling.
The method according to claim 1, wherein determining the HARQ codebook according to the first identifier comprises:

According to the first identifier and the preset threshold value, the HARQ codebook is determined.
The method according to claim 4, wherein determining the HARQ codebook according to the first identifier and the preset threshold value comprises:

If the first identifier is less than a first preset threshold, determine that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is less than or equal to a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is greater than a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is greater than or equal to a first preset threshold, determining that the HARQ codebook is the first HARQ codebook;

or,

If the first identifier is less than a second preset threshold, determining that the HARQ codebook is a second HARQ codebook;

or,

If the first identifier is less than or equal to the second preset threshold, determining that the HARQ codebook is the second HARQ codebook;

or,

If the first identifier is greater than a second preset threshold, determining that the HARQ codebook is a second HARQ codebook;

or,

If the first identifier is greater than or equal to the second preset threshold, it is determined that the HARQ codebook is the second HARQ codebook.
The method according to claim 5, wherein the first threshold value or the second threshold value is agreed in advance by an agreement; or, the first threshold value or the second threshold value is passed by the network side Signaling configuration.
The method according to claim 1, wherein determining the HARQ codebook according to an instruction from the network side comprises:

Receiving first indication information sent by the network side, where the first indication information indicates the HARQ codebook used by the terminal;

According to the first indication information, the HARQ codebook is determined.
The method according to claim 7, wherein the first indication information is any one of the following:

The DCI format of the downlink control information for scheduling sidelink data;

Radio network temporary identifier RNTI used to scramble DCI for scheduling sidelink data;

The first indication field in the DCI for scheduling sidelink data, where the first indication field is used to indicate the HARQ codebook corresponding to the sidelink data scheduled by the DCI.
The method according to claim 7, wherein the first indication information is generated by the network side according to priority information and/or quality of service information reported by the terminal.
The method according to claim 1, wherein the HARQ codebook includes one or more of the following:

HARQ codebook based on time slot;

HARQ codebook based on sub-slots.
A method for determining the PSFCH resource of the physical direct link feedback channel includes:

Receiving second indication information, where the second indication information is used to indicate the priority or the quality of service of the data packet on the physical direct link shared channel PSSCH scheduled by the direct link control information SCI;

According to the second indication information, one or more of the PSFCH resource pool or resource set, the format of the PSFCH, the frequency domain resources of the PSFCH, and the code domain resources of the PSFCH are determined.
The method according to claim 11, wherein one or more of the PSFCH resource pool or resource set, PSFCH format, PSFCH frequency domain resources, and PSFCH code domain resources are determined according to the second indication information, include:

According to the second indication information, determine a PSFCH resource pool or a resource set from at least one PSFCH resource pool or resource set configured, or,

According to the second indication information, determine a PSFCH format from the configured PSFCH resource pool or PSFCH resource set, or,

According to the second indication information, the frequency domain resources of the PSFCH and/or the code domain resources of the PSFCH are determined from the configured PSFCH resource pool or PSFCH resource set.
The method according to claim 11, wherein the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured by the network side through high-level signaling.
The method according to claim 11, wherein said receiving the second indication information comprises:

Receiving an SCI, where the SCI includes the second indication information.
A terminal includes: a first processor and a first transceiver, the first processor is configured to: determine a first PUCCH resource according to PUCCH configuration information and/or DCI sent by a network side; and according to a first identifier, or According to the instructions from the network side, the HARQ codebook is determined. The first identifier is used to indicate the priority information or QoS of the sidelink data packet; the HARQ codebook includes sidelink HARQ-ACK; the first transceiver is used to: Send the HARQ codebook on the first PUCCH resource.
A terminal includes: a first determining module, a second determining module, and a sending module, where the first determining module is configured to determine a first PUCCH resource according to PUCCH configuration information and/or downlink control information DCI sent by a network side; The second determining module is configured to determine the HARQ codebook according to the first identifier or according to an instruction from the network side, and the first identifier is used to indicate priority information or QoS of the sidelink data packet; Yu: Send the HARQ codebook on the first PUCCH resource.
A terminal, comprising: a second transceiver and a second processor, the second transceiver is configured to receive second indication information, the second indication information is used to indicate the physical through link control information scheduling of the through link The priority or quality of service of the data packet on the shared channel PSSCH; the second processor is configured to determine the PSFCH resource pool or resource set, PSFCH format, PSFCH frequency domain resources, and PSFCH according to the second indication information One or more of the code domain resources.
A terminal, comprising: a second receiving module and a fourth determining module, the second receiving module is configured to receive second indication information, the second indication information is used to indicate the physical through link control information scheduling of the through link The priority or quality of service of data packets on the shared channel PSSCH; the fourth determining module is configured to determine the PSFCH resource pool or resource set, the format of the PSFCH, the frequency domain resources of the PSFCH, and the PSFCH according to the second indication information. One or more of the code domain resources of the PSFCH.
A terminal, comprising: a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is executed by the processor to implement any one of claims 1 to 10 The steps of the HARQ-ACK transmission method; or, the steps of the method for determining the PSFCH resource according to any one of claims 11 to 14.
A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the HARQ-ACK according to any one of claims 1 to 10 is implemented. The steps of the sending method; or, the steps of the method for determining the PSFCH resource according to any one of claims 11 to 14.