CN112398594A - sending method of sidelink HARQ-ACK, PSFCH resource determination method and equipment - Google Patents

Abstract

Embodiments of the present invention provide a method for sending sidelink HARQ-ACK, a method and device for determining PSFCH resources. The method includes: determining a first PUCCH resource according to PUCCH configuration information and/or DCI sent by the network side; , or determine the HARQ codebook according to the indication of the network side, the first identifier is used to indicate the priority information or QoS of the sidelink data packet; the HARQ codebook is sent on the first PUCCH resource. In some embodiments of the present invention, it can be ensured that the delay and reliability of Sidelink HARQ-ACK of different services are satisfied.

Description

Method for sending sidelink HARQ-ACK, method and device for determining PSFCH resources

technical field

Embodiments of the present invention relate to the field of communication technologies, 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 device.

Background technique

In order to reuse the related designs in the New Radio (NR) as much as possible, the Sidelink HARQ-ACK may be reported on the Physical Uplink Control Channel (PUCCH), so the sidelink HARQ-ACK with multi-service priority 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 requirements for delay and reliability. If the same PSFCH resource determination mechanism is used, the requirements of different services will not be guaranteed, or some resources will be wasted. Therefore, how to transmit SFCI with multiple service priorities on Sidelink is an urgent problem to be solved.

SUMMARY OF THE INVENTION

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

According to the first aspect, an embodiment of the present invention provides a method for sending a sidelink HARQ-ACK, including: determining a 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 the indication of the network side, where the first identifier is used to indicate the priority information or QoS of the sidelink data packet; the HARQ codebook includes the sidelink HARQ-ACK;

On the first PUCCH resource, the HARQ codebook is sent.

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

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

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

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

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

Optionally, the HARQ codebook is determined according to the indication of the network side, including:

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 of the following:

Downlink control information DCI format for scheduling sidelink data;

The radio network temporary identifier RNTI used for scrambling and scheduling the DCI of the 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:

slot-based HARQ codebook;

Subslot based HARQ codebook.

In a second aspect, an embodiment of the present invention further provides a method for determining PSFCH resources, including:

receiving second indication information, where the second indication information is used to indicate the priority or quality of service of the data packets 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 items 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, according to the second indication information, determine 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, including:

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

According to the second indication information, a PSFCH format is determined 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 by a high-layer signaling on the network side.

Optionally, the receiving the second indication information includes:

An SCI is received, and the SCI includes the second indication information.

In a third aspect, an embodiment of the present invention further provides a terminal, including: a first processor and a first transceiver, where the first processor is configured to: determine the first processor according to PUCCH configuration information and/or DCI sent by the network side PUCCH resources; and determining a HARQ codebook according to a first identifier or an indication from the network side, where the first identifier is used to indicate priority information or QoS of sidelink data packets; the first transceiver is used to: The HARQ codebook is sent on the first PUCCH resource.

In a fourth aspect, an embodiment of the present invention further provides 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 the PUCCH configuration information and/or downlink sent by the network side Control information DCI, to determine the first PUCCH resource; the second determination module is used to: determine the HARQ codebook according to the first identifier, or according to the indication of the network side, 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, an embodiment of the present invention further provides a terminal, including: a second transceiver and a second processor, where the second transceiver is configured to: receive second indication information, where the second indication information is used to indicate the priority or quality of service of the data packets on the physical direct link shared channel PSSCH scheduled by the direct link control information; the second processor is configured to: according to the second indication information, determine the PSFCH resource pool or resource set, the PSFCH One or more of the format of the PSFCH, the frequency domain resources of the PSFCH, and the code domain resources of the PSFCH.

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

In a seventh aspect, an embodiment of the present invention further provides a terminal, including: a processor, a memory, and a program stored on the memory and executable on the processor, and the program is implemented when executed by the processor The steps of the above-mentioned method for sending HARQ-ACK; or, the steps of implementing the above-mentioned method for PSFCH resource determination.

In an eighth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the HARQ-ACK is sent as described above. The steps of the method; or, the steps of implementing the method for determining the PSFCH resource as described above.

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

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

FIG. 1 is a schematic diagram of a transmitter reporting sidelink HARQ-ACK to a base station;

2 is one of the flowcharts of a method for sending sidelink HARQ-ACK according to an embodiment of the present invention;

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

FIG. 4 is one of schematic diagrams of a terminal according to an embodiment of the present invention;

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

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

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

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

Detailed ways

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 are as follows :

Step 1: The transmitter (transmitter) sends a 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 SCI and data (data) in the corresponding resources according to the received sidelink grant issued by the base station;

Step 4: The receiver (receiver) blindly detects the direct link control information (Sidelink Control Information, SCI), receives the data, and sends the SFCI to the transmitter;

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

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

(2) Near Field Communication Priority (ProSe Per-Packet Priority, PPPP) of data packets in Long Term Evolution (LTE)-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 (priority information) to reflect the PPPP. The base station can deduce the delay budget of the corresponding data packet (packet) through the priority information;

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

NR will reuse the idea of PPPP and the design of QoS flow to generate, for example, PFI identifiers (PC5QoS FlowIdentifiers), which are used to characterize service priorities and QoS requirements.

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

Currently, at least one sequence-based Physical Sidelink Feedback Channel (PSFCH) format (format) has been adopted, and other types of PSFCH formats require further study (For Further Study, FFS).

How to determine PSFCH resources:

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

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The term "comprising" and any variations thereof in the description and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to the explicit Those steps or units are explicitly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or apparatus. In addition, the use of "and/or" in the description and the claims indicates at least one of the connected objects, such as A and/or B, indicating that there are three cases including A alone, B alone, and both A and B.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

The techniques described herein are not limited to 5th-generation (5G) and subsequent evolved communication systems, and are not limited to LTE/LTE evolved (LTE-Advanced, LTE-A) systems, and can also be used in various mobile communication systems. wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), 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. A CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system may implement a radio technology such as the Global System for Mobile Communication (GSM). The OFDMA system can implement systems such as Ultra Mobile Broadband (UMB), Evolved UTRA ((Evolution-UTRA, E-UTRA)), IEEE 802.11 ((Wi-Fi)), IEEE 802.16 ((WiMAX)), IEEE802 .20, Flash-OFDM and other radio technologies. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (eg LTE-A) are new UMTS releases 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 techniques described herein may be used for both the systems and radio technologies mentioned above, as well as for other systems and radio technologies.

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

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

Step 202: Determine a HARQ codebook according to a first identifier or an indication from the network side, where the first identifier is used to indicate priority information or QoS of sidelink data packets, and the HARQ codebook includes sidelink HARQ-ACK;

In some embodiments, the 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 embodiments, the HARQ codebook includes one or more of the following: (1) a slot-based HARQ codebook; (2) a 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-agreed by the protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-layer signaling.

Optionally, for the mapping relationship between the first identifier and the HARQ codebook, see Table 1. It should be noted that the HARQ codebook shown in Table 1 includes HARQ codebook 1 and HARQ codebook 2. Other situations are similar and are not omitted here. Describe again.

Table 1:

first sign HARQ codebook 1 HARQ codebook 1 2 HARQ codebook 2 3 HARQ codebook 1 4 HARQ codebook 2 5 HARQ codebook 1 6 HARQ codebook 2 7 HARQ codebook 1 8 HARQ codebook 2

In some embodiments, the HARQ codebook is determined according to the first identifier and a preset threshold value. For example: do it by:

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

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

It can be understood 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 this embodiment of the present invention.

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 the terminal receives DCI format 1, the HARQ codebook corresponding to the scheduled sidelink data is the first HARQ codebook; When receiving DCI format 2, the HARQ codebook corresponding to the scheduled sidelink data is the second HARQ codebook.

(2) Radio Network Temporary Identifier (RNTI) for scrambling the DCI for scheduling sidelink data.

For example, there may be two RNTIs for scrambled and scheduled sidelink data of DCI, including: a first RNTI and a 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 is the first HARQ codebook; when the terminal receives the DCI scheduling 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 indication field in the DCI for scheduling sidelink data contains 1 bit, and when the terminal receives the DCI for scheduling sidelink data, when the first indication field contained in the DCI for scheduling sidelink data is "0", the HARQ codebook corresponding to the scheduled sidelink data is: When the first indication field included in the first HARQ codebook is "1", the HARQ codebook corresponding to the scheduled sidelink data is the second codebook.

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

In the embodiment of the present invention, it can be ensured that the delay and reliability of Sidelink HARQ-ACK of different services are satisfied.

Referring to FIG. 3 , an embodiment of the present invention further provides a method for determining PSFCH resources, which is suitable for a terminal, such as a receiving end, and the 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 quality of service (QoS) of the data packets on the physical direct link shared channel PSSCH scheduled by the direct link control information (Sidelink Control Information, SCI). QoS);

For example, an SCI is received, and the SCI includes the second indication information.

Step 302: Determine 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 according to the second indication information.

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

In some embodiments, the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured by a higher layer signaling on the network side.

In the embodiment of the present invention, it can be ensured that the time delay and reliability requirements of the SFCI of different services are satisfied.

The following describes the method for sending HARQ-ACK and the method for determining PSFCH resources according to the embodiment of the present invention with reference to Example 1, Example 2 and Example 3.

Example 1: Sending method of multi-service priority sidelink HARQ-ACK:

The mapping relationship between the first identifier and the HARQ codebook is configured in a pre-defined 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 (PC5QoS FlowIdentifiers), PPPP, etc., used to characterize the QoS requirements of the service/data packet corresponding to the HARQ codebook, specifically including the following methods:

- The first identifier threshold is configured in a predefined manner, or the base station configures the first identifier through high-level signaling. When the first identifier corresponding to the data packet is lower than or higher than the first threshold, the first identifier is used. HARQ codebook, when the first identifier corresponding to the data packet is higher or lower than the second threshold value, 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-slotbased HARQ codebook mode and corresponding HARQ-ACK related PUCCH configuration .

- The mapping table between the first identifier and the HARQ codebook is configured by the base station in a pre-defined manner, or the base station is configured by high-layer signaling, see Table 1.

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

Example 2: 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 reported by the terminal, PFI identifiers (PC5QoS Flow Identifiers) and other related information, and indicates the HARQ codebook used by the terminal through the physical layer downlink control information of the scheduling 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, and when using DCI format 5B to schedule sidelink data, use the second HARQ codebook;

- For example, there are at least two RNTIs for scrambled and scheduled DCI of sidelink data. When using RNTI 1 to scramble and schedule DCI of sidelink data, use the first HARQ codebook; when using RNTI 2 to scramble and schedule DCI of sidelink data , using the second HARQ codebook;

- For example, a HARQ codebook indication field is added to the DCI 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 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-slotbased HARQ codebook mode and corresponding HARQ-ACK related PUCCH configuration .

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

In Example 1 and Example 2, by configuring the mapping relationship between PC5QoS Flow Identifier and sidelink HARQ codebook, or by introducing different DCI formats, RNTI, etc. for scheduling sidelink data, the delay and reliability of sidelink HARQ-ACK for different services are guaranteed. Sex is satisfied.

Example 3: Regarding the way of determining the PSFCH resource based on the first information:

The first information is included in the through link control information (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 manner, or the base station/transmitting end configures through high-level signaling, and the receiving end determines which of the multiple resource pools configured according to the first information. A PSFCH resource pool/resource set; or

- The PSFCH resource pool/resource set is configured for the receiving end in a predefined manner, or the base station/transmitter is configured by high-level signaling, and the receiving end determines the PSFCH resource pool/resource set from the configured resource pool/resource set according to the first information. format; or

- Configure the PSFCH resource pool/resource set for the receiving end in a predefined manner, or the base station/transmitting end configures it through high-level signaling, and the receiving end determines the frequency domain/resource set of the PSFCH from the configured resource pool according to the first information. Code domain resources.

In Example 3, by using the priority to implicitly determine the resources of the PSFCH/PSFCH format, it is ensured that the delay and reliability requirements of the SFCI of different services are satisfied.

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

Referring to FIG. 4, an embodiment of the present invention further provides a terminal. The terminal 400 includes: a first processor 401 and a first transceiver 402, where the first processor 401 is configured to: according to the PUCCH configuration information sent by the network side and/or or DCI, determine the first PUCCH resource; and determine the HARQ codebook according to the first identifier, or according to the indication of the network side, the first identifier is used to indicate the priority information of the sidelink data packet, or the QoS, and 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-agreed by a protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-layer 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:

If the first identifier is less than a first preset threshold, determining 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 a second preset threshold, determining that the HARQ codebook is a 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 a second preset threshold, it is determined that the HARQ codebook is a second HARQ codebook. In some embodiments, the first threshold value or the second threshold value is pre-agreed 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: according to the The first indication information determines the HARQ codebook.

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

The DCI format for scheduling sidelink data;

RNTI for scrambling the 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.

In some embodiments, 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; a subslot-based HARQ codebook.

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiments, and the implementation principle and technical effect thereof are similar, and details are not described herein again in this embodiment.

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

Referring to FIG. 5 , an embodiment of the present invention further provides a terminal. The terminal 500 includes: a first determining module 501 , a second determining module 502 and a sending module 503 , where the first determining module 501 is configured to: The PUCCH configuration information and/or the 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 an indication from the network side, and the first identifier is used to indicate Priority information of sidelink data packets, or QoS; the sending module 503 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 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 mapping relationship between the first identifier and the HARQ codebook is pre-agreed by a protocol; or, the mapping relationship between the first identifier and the HARQ codebook is configured by the network side through high-layer signaling of.

In some embodiments, the second determining module 502 is further configured to: determine the HARQ codebook according to the first identifier and a 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, the HARQ codebook is determined to be the second HARQ codebook.

In some embodiments, the first threshold value or the second threshold value is pre-agreed 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, where the first receiving module is configured to: receive first indication information sent by the network side, where the first indication information indicates the HARQ codebook used by the terminal; Module 502 is further configured to: determine the HARQ codebook according to the first indication information.

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

The DCI format for scheduling sidelink data;

RNTI for scrambling the 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.

In some embodiments, 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; a subslot-based HARQ codebook.

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiments, and the implementation principle and technical effect thereof are similar, and details are not described herein again in this embodiment.

The embodiment of the present invention 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 invention, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 6 , an embodiment of the present invention further provides a terminal. The terminal 600 includes: a second transceiver 601 and a second processor 602, where the second transceiver 601 is configured to: receive second indication information, the first The second 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 configured to: determine the PSFCH resource pool or resource set according to the second indication information , one or more of the format of the PSFCH, the frequency domain resources of the PSFCH, and the code domain resources of the PSFCH.

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

In some embodiments, the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured by a higher layer signaling on the network side.

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

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiments, and the implementation principle and technical effect thereof are similar, and details are not described herein again in this embodiment.

The embodiment of the present invention 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 invention, the implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.

Referring to FIG. 7 , an embodiment of the present invention further 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 second indication The information is used to indicate the priority or quality of service of the data packets on the PSSCH scheduled by the direct link control information; the fourth determination module 702 is used to: determine the PSFCH resource pool or resource set, the format of the PSFCH according to the second indication information , one or more of the frequency domain resources of the PSFCH and the code domain resources of the PSFCH.

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

In some embodiments, the configured PSFCH resource pool or resource set is pre-defined by a protocol, or configured by a higher layer signaling on the network side.

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

The terminal provided by the embodiment of the present invention can execute the above-mentioned embodiments, and the implementation principle and technical effect thereof are similar, and details are not described herein again in this embodiment.

As shown in FIG. 8 , the terminal 800 shown in FIG. 8 includes: at least one processor 801 , memory 802 , at least one network interface 804 and user interface 803 . The various components in terminal 800 are coupled together by bus system 805 . It can be understood that the bus system 805 is used to implement the connection 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 the sake of clarity, the various buses are labeled as bus system 805 in FIG. 8 .

The user interface 803 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen, etc.).

It can be understood that the memory 802 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be Read-Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Datarate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct memory bus random access memory (Direct Rambus RAM, DRRAM). The memory 802 of the systems and methods described in embodiments of the present invention is intended to include, but not be limited to, these and any other suitable types of memory.

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

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. The program for implementing the method of the embodiment of the present invention may be included in the application program 8022 .

In an embodiment of the present invention, by calling the program or instruction stored in the memory 802, specifically, the program or instruction stored in the application program 8022, the steps described in the above method are implemented during execution.

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

The steps of the method or algorithm described in conjunction with the disclosure of the present invention may be implemented in a hardware manner, or may be implemented in a manner of executing software instructions on a processor. The software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and storage medium may be carried in an ASIC. Alternatively, the ASIC may be carried in the core network interface device. Of course, the processor and the storage medium may also exist in the core network interface device as discrete components.

Those skilled in the art should appreciate that, in one or more of the above examples, the functions described in the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

The specific embodiments described above further describe the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solution of the present invention shall be included within the protection scope of the present invention.

It should be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, a system, or a computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, CD-ROM, optical storage, and the like.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, provided that these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (20)

1. A method for sending a sidelink HARQ-ACK (hybrid automatic repeat request-acknowledgement), comprises the following steps:

determining a first PUCCH resource according to Physical Uplink Control Channel (PUCCH) configuration information and/or Downlink Control Information (DCI) sent by a network side;

determining an HARQ codebook according to a first identifier or an indication of a network side, wherein the first identifier is used for indicating priority information of a sidelink data packet or service quality QoS; the HARQ codebook comprises sidelink HARQ-ACK;

and transmitting the HARQ codebook on the first PUCCH resource.

2. The method of claim 1, wherein determining the HARQ codebook according to the first identifier comprises:

and determining the HARQ codebook according to the first identifier and the mapping relation between the first identifier and the HARQ codebook.

3. The method of claim 2,

the mapping relation between the first identifier and the HARQ codebook is agreed in advance by a protocol; or,

and the mapping relation between the first identifier and the HARQ codebook is configured by a network side through high-layer signaling.

4. The method of claim 1, wherein determining the HARQ codebook according to the first identifier comprises:

and determining the HARQ codebook according to the first identifier and a preset threshold value.

5. The method of claim 4, wherein determining the HARQ codebook according to the first identifier and a preset threshold comprises:

if the first identifier is smaller than a first preset threshold value, determining that the HARQ codebook is a first HARQ codebook;

or,

if the first identifier is smaller than or equal to a first preset threshold value, determining the HARQ codebook as a first HARQ codebook;

or,

if the first identifier is larger than a first preset threshold value, determining that the HARQ codebook is a first HARQ codebook;

or,

if the first identifier is larger than or equal to a first preset threshold value, determining the HARQ codebook as a first HARQ codebook;

or,

if the first identifier is smaller than a second preset threshold value, determining that the HARQ codebook is a second HARQ codebook;

or,

if the first identifier is smaller than or equal to a second preset threshold value, determining the HARQ codebook as a second HARQ codebook;

or,

if the first identifier is larger than a second preset threshold value, determining that the HARQ codebook is a second HARQ codebook;

or,

and if the first identifier is larger than or equal to a second preset threshold value, determining the HARQ codebook as a second HARQ codebook.

6. The method of claim 5, wherein the first threshold or the second threshold is pre-agreed upon by a protocol; or, the first threshold or the second threshold is configured by a network side through a high-level signaling.

7. The method of claim 1, wherein determining the HARQ codebook according to the indication of the network side comprises:

receiving first indication information sent by a network side, wherein the first indication information indicates an HARQ codebook used by a terminal;

and determining an HARQ codebook according to the first indication information.

8. The method according to claim 7, wherein the first indication information is any one of:

scheduling a Downlink Control Information (DCI) format of sidelink data;

radio Network Temporary Identity (RNTI) for scrambling DCI (Downlink control information) for scheduling sidelink data;

the first indication field is used for indicating a HARQ codebook corresponding to the sidelink data scheduled by the DCI.

9. 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 (QoS) information reported by the terminal.

10. The method of claim 1, wherein the HARQ codebook comprises one or more of:

a slot-based HARQ codebook;

sub-slot based HARQ codebook.

11. A method for determining PSFCH resources of a physical direct link feedback channel (PRFCH) is characterized by comprising the following steps:

receiving second indication information, wherein the second indication information is used for indicating the priority or the service quality of a data packet on a physical direct link shared channel PSSCH scheduled by direct link control information (SCI);

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

12. The method of claim 11, wherein determining one or more of a pool or set of PSFCH resources, a format of the PSFCH, frequency domain resources of the PSFCH, and code domain resources of the PSFCH according to the second indication information comprises:

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

determining a format of the PSFCH from the configured PSFCH resource pool or the PSFCH resource set according to the second indication information, or,

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

13. The method according to claim 11, wherein the configured PSFCH resource pool or resource set is configured by a predefined manner of a protocol or by a higher layer signaling on the network side.

14. The method of claim 11, wherein receiving the second indication comprises:

and receiving an SCI, wherein the SCI comprises the second indication information.

15. A terminal, comprising: a first processor and a first transceiver, the first processor to: 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 an indication of a network side, wherein the first identifier is used for indicating the priority information or QoS of a sidelink data packet; the HARQ codebook comprises sidelink HARQ-ACK; the first transceiver is to: and transmitting the HARQ codebook on the first PUCCH resource.

16. A terminal, comprising: the device comprises a first determining module, a second determining module and a sending module, wherein the first determining module is used for: determining a first PUCCH resource according to PUCCH configuration information and/or Downlink Control Information (DCI) sent by a network side; the second determination module is to: determining an HARQ codebook according to a first identifier or an indication of a network side, wherein the first identifier is used for indicating the priority information or QoS of a sidelink data packet; the sending module is used for: and transmitting the HARQ codebook on the first PUCCH resource.

17. A terminal, comprising: a second transceiver and a second processor, the second transceiver to: receiving second indication information, wherein the second indication information is used for indicating the priority or the service quality of a data packet on a physical straight-through link shared channel PSSCH scheduled by straight-through link control information; the second processor is to: and determining one or more of a PSFCH resource pool or resource set, a format of the PSFCH, frequency domain resources of the PSFCH and code domain resources of the PSFCH according to the second indication information.

18. A terminal, comprising: a second receiving module and a fourth determining module, wherein the second receiving module is configured to: receiving second indication information, wherein the second indication information is used for indicating the priority or the service quality of a data packet on a physical straight-through link shared channel PSSCH scheduled by straight-through link control information; the fourth determining module is to: and determining one or more of a PSFCH resource pool or resource set, a format of the PSFCH, frequency domain resources of the PSFCH and code domain resources of the PSFCH according to the second indication information.

19. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method of transmitting HARQ-ACK according to any of claims 1 to 10; alternatively, the steps of a method of PSFCH resource determination according to any of claims 11 to 14 are implemented.

20. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method of transmission of HARQ-ACK according to any one of claims 1 to 10; alternatively, the steps of a method of PSFCH resource determination according to any of claims 11 to 14 are implemented.

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