WO2020048526A1

WO2020048526A1 - Sidelink information feedback method and terminal

Info

Publication number: WO2020048526A1
Application number: PCT/CN2019/104699
Authority: WO
Inventors: 杨晓东
Original assignee: 维沃移动通信有限公司
Priority date: 2018-09-07
Filing date: 2019-09-06
Publication date: 2020-03-12
Also published as: CN110890942A; CN110890942B

Abstract

Provided are a sidelink information feedback method and a terminal. The method comprises: receiving first transmission information related to a sidelink transmission, wherein the first transmission information comprises at least one of the following: a group identifier of an interest group to which a first terminal and a second terminal belong, a first terminal identifier of the first terminal, a second terminal identifier of the second terminal, and first transmission resource information related to the sidelink transmission; and feeding back, according to the first transmission information, second transmission information to the second terminal, wherein the second transmission information is used to indicate whether to give a reception feedback with respect to data sent by the second terminal.

Description

Side link information feedback method and terminal

Cross-reference to related applications

This application claims priority from Chinese Patent Application No. 201811043326.7 filed in China on September 7, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communication technologies, and in particular, to a side-link information feedback method and terminal.

Background technique

In a mobile communication system, a side link (also called a side link, a side link, a side link, etc.) is used for direct transmission between terminals without using a network device. Among them, the terminal sends side link control information (SCI) through the physical side link control channel (PSCCH), and schedules the transmission of the physical side link shared channel (PSSCH) to send data. Among them, the transmission of the sidelink is based on broadcasting, and the receiving terminal does not feedback to the transmitting terminal whether the reception is successful.

Sidelink transmission supports two resource allocation modes. One is the Scheduled Resource Allocation mode. In this mode, the network equipment controls and allocates resources to each terminal. The other is the autonomous resource selection mode. In this mode, the terminal autonomously selects resources.

The network device configures the terminal with a sidelink discovery or transmission resource pool. The resource pool contains the resource information and related transmission parameters used in the sidelink discovery or transmission process, such as the offset value of the first subframe of the resource pool, and the resource pool. The corresponding bitmap, whether PSCCH and PSSCH will be transmitted in the adjacent resource block (RB), the number of subchannels, the size of each subchannel, the lowest RB index value corresponding to the subchannel, and the PSCCH pool ) Corresponding minimum RB index value, Sidelink Received Signal Strength Indicator (S-RSSI) threshold and area identifier etc. measured by Channel Busy Rate (CBR) measurement.

Currently, sidelink transmission includes unicast, multicast (or multicast), and broadcast. For the data transmitted by sidelink, the sending terminal cannot determine the receiving result of the receiving terminal. To improve the transmission reliability, the sending terminal can Set the number of times to send data to the receiving terminal, but it may increase the network load.

Summary of the Invention

The embodiments of the present disclosure provide a side-link information feedback method and a terminal, so as to solve the problem of reliability of data transmission between terminals that communicate directly.

In a first aspect, an embodiment of the present disclosure provides a side link information feedback method, which is applied to a first terminal and includes:

Receive first transmission information related to side-link transmission, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, and a second terminal information of the second terminal At least one of a terminal identification and first transmission resource information related to a side link transmission;

Feedback the second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

In a second aspect, an embodiment of the present disclosure further provides a terminal, where the terminal is a first terminal, and includes:

A first receiving module, configured to receive first transmission information related to side-link transmission, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and a first terminal identifier of the first terminal At least one of a second terminal identifier of the second terminal and first transmission resource information related to the side link transmission;

The feedback module is configured to feedback the second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

In a third aspect, an embodiment of the present disclosure provides a side-link information feedback method, which is applied to a second terminal and includes:

Send first transmission information related to the side link transmission to the first terminal, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, and a second At least one of a second terminal identifier of the terminal and first transmission resource information related to the side link transmission;

Receiving second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feed back data sent by the second terminal.

In a fourth aspect, an embodiment of the present disclosure provides a terminal, where the terminal is a second terminal, and includes:

The first sending module is configured to send first transmission information related to the side link transmission to the first terminal, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and a At least one of a first terminal identifier, a second terminal identifier of a second terminal, and first transmission resource information related to side-link transmission;

The second receiving module is configured to receive second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

In a fifth aspect, an embodiment of the present disclosure provides a terminal. The terminal includes a processor, a memory, and a program stored on the memory and running on the processor. When the program is executed by the processor, the method for implementing the above-mentioned side-link information feedback method is provided. step.

According to a sixth aspect, an embodiment of the present disclosure further provides a computer-readable storage medium. The computer-readable storage medium stores a program, and when the program is executed by a processor, implements the steps of the above-mentioned side-link information feedback method.

In this way, the receiving terminal in the embodiment of the present disclosure receives the first transmission information related to the side link transmission, and feeds back the second transmission information to the transmitting terminal according to the first transmission information, so as to indicate whether to perform data transmission on the transmitting terminal. Feedback, so that the receiving terminal can receive and feedback the data transmitted by the transmitting terminal, thereby ensuring the reliability of data transmission during the side-link transmission process.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the drawings used in the description of the embodiments of the present disclosure are briefly introduced below. Obviously, the drawings in the following description are just some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic flowchart of a side-link information feedback method on a first terminal side according to an embodiment of the present disclosure;

FIG. 2 is a schematic flowchart of a side-link information feedback method on a second terminal side according to an embodiment of the present disclosure;

3 is a schematic structural diagram of a module of a first terminal according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a module of a second terminal according to an embodiment of the present disclosure;

FIG. 5 shows a block diagram of a terminal according to an embodiment of the present disclosure.

detailed description

Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a thorough understanding of the present disclosure, and to fully convey the scope of the present disclosure to those skilled in the art.

The terms "first", "second", and the like in the specification and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those explicitly listed Those steps or units may instead include other steps or units not explicitly listed or inherent to these processes, methods, products or equipment. "And / or" in the specification and claims means at least one of the connected objects. The expression "at least one of A or B" in the description and the claims can be understood as "only A, only B, or A + B".

An embodiment of the present disclosure provides a side link information feedback method, which is applied to a first terminal (receiving terminal). As shown in FIG. 1, the method includes the following steps: 11 and 12.

Step 11: Receive first transmission information related to the side link transmission.

The side-link transmission mentioned in this embodiment includes: unicast or multicast. The first transmission information is used to indicate how the second terminal performs side-link transmission with the first terminal. Optionally, the first transmission information includes: a group identifier of an interest group (or an interesting service group) to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, a second terminal identifier of the second terminal, and At least one of first transmission resource information related to a side link transmission.

The first terminal and the second terminal belong to the same interest group, and the services transmitted between the two terminals can be understood by using the same encryption and decryption process. Among them, the transmitted services can be distinguished by independent service identifiers.

The first terminal identifier is used to indicate identity information of the first terminal, and the first terminal identifier may be a terminal ID of the first terminal, a wireless network temporary identifier (RNTI), and the like. The second terminal identifier is used to indicate identity information of the second terminal, and the second terminal identifier may be a terminal ID, an RNTI, and the like of the second terminal.

The first transmission resource information is used to indicate a position and a size of a transmission resource related to the side link transmission. The second terminal transmits services and data to the first terminal through the resources indicated by the first transmission resource information.

The first transmission resource information in the embodiment of the present disclosure includes, but is not limited to, resource information selected from a data communication resource pool, HARQ process number information of a hybrid automatic retransmission request, and reference of Radio Link Monitoring (RLM) At least one of signal configuration information, reference signal configuration information for beam management, and antenna transmission mode information.

Step 12: feedback the second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

After receiving the first transmission information, the first terminal feeds back the second transmission information to the second terminal, so as to inform the second terminal whether to receive feedback on the data sent by the first terminal, thereby realizing the feedback of the side-link transmission and ensuring the side-link Reliability of transmission.

Before step 11, the method further includes: determining a second terminal that establishes a side link transmission with the first terminal. This step is to determine whether two terminals can perform side-link transmission. Optionally, this step can be implemented by, but not limited to, the following: according to at least one of the following target information, the terminal will belong to the same interest group as the first terminal. The terminal is determined as the second terminal. The target information includes, but is not limited to:

1. Interactive information at the application or control layer. For example, the terminal interacts with the application layer of V2X or the control function layer of V2X to ensure that the two terminals can be in an interest group in the upper layer of V2X. This method is similar to the discovery mechanism of sidelink transmission in the LTE system. The two terminals can be in an interest group to ensure that services can use the same encryption and decryption process and can understand each other. For example, it is identified by a service independent service ID.

2. Air interface transmits information. For example, two terminals send air interface transmission information on the air interface, such as similar to discovery signals / messages or data communication signals / information. On the sidelink air interface, the two terminals are found to be in the same interest group. , And the air distance is relatively close.

3. Discover signals / messages or data transmission signals / messages. For example, it is carried in the discovery signal / information or transmission signal / information: the group identity of the interest group, the terminal identity of each terminal (per UE) in the group, and the like. Among them, this terminal identifier can be used for subsequent side-link transmission and feedback negotiation between the two terminals. For example, the group identification of the first terminal is X, the group identification of the first terminal is UE identification 1, the group identification of the second terminal is X, and the group identification of the second terminal is UE identification 2.

4. Instruction information of the network device. This method is that the terminal can discover the terminal that performs side-link transmission with the assistance or instruction of the network device. For example, the network device knows that the two terminals are close to each other, so it can directly indicate that the two terminals can perform side-link transmission.

In the embodiment of the present disclosure, the second transmission information includes: a group identifier of the interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, a second terminal identifier of the second terminal, and feedback on whether to receive feedback. At least one of instruction information, second transmission resource information related to receiving feedback, and identification information related to receiving feedback.

The first terminal and the second terminal belong to the same interest group, and the services transmitted between the two terminals can be understood by using the same encryption and decryption process. Among them, the transmitted services can be distinguished by independent service identifiers. The first terminal identifier is used to indicate identity information of the first terminal, and the first terminal identifier may be a terminal ID, an RNTI, and the like of the first terminal. The second terminal identifier is used to indicate identity information of the second terminal, and the second terminal identifier may be a terminal ID, an RNTI, and the like of the second terminal.

Wherein, the second transmission resource information is used to indicate the position and size of the transmission resource related to the side-link transmission feedback. If the first terminal sends second transmission resource information indicating the resource used for receiving feedback to the second terminal, it implicitly instructs the first terminal to receive feedback on the received data; if the second transmission resource information is not sent, Then the first terminal is implicitly instructed not to receive feedback on the received data. The resource indicated by the second transmission resource information is determined from the data communication feedback resource pool. For example, the second terminal sends the first transmission information carrying the group identifier X, the UE identifier 1 as the target address, and the UE identifier 2 as the source address, and which resource it wants to select from the data communication resource pool. The first terminal and the second terminal can also carry their desired modulation and coding strategy (MCS) capabilities, multiple input multiple output (MIMO) capabilities, bandwidth, and sub-carrier spacing (Sub- Carrier Spacing (SCS). After receiving the first transmission information, the first terminal carries the group identifier X, the UE identifier 1 as the source address, and the UE identifier 2 as the destination address, and in which data communication feedback resource pool (data pool) it wants to return from The selected resource performs second transmission information of ACK feedback or MCS feedback. The feedback information may include, but is not limited to, the physical uplink control channel format (PUCCH-like format), timing relationship, and hybrid automatic repeat request codebook (Hybrid) used by the feedback. ARQ, Hybrid, Automatic, Repeat, Request, Code, Book, etc.). In this way, the first terminal and the second terminal negotiate quite once, which facilitates subsequent communications.

The identification information related to receiving feedback refers to the identification information related to the second transmission resource information. For example, the second terminal sends the first transmission information carrying the group identifier X, the UE identifier 2 as the source address, and the UE identifier 1 as the target address, and in which data communication pool the resource selected is expected to communicate, the first terminal, The terminal will carry the group ID X, UE ID 1 as the source address, and UE ID 2 as the destination address, and it will be used to indicate that I received this information and I will also assign a UE ID separately for the feedback resource (such as UE ID 1 ') The second transmission information. The UE identifier 1 'is used to scramble feedback information transmission, and a resource of the feedback information can be selected from a data communication feedback pool. The second terminal needs to demodulate the UE identifier 1 'to determine whether the first terminal has feedback. If it is not demodulated, it is considered that the first terminal has no feedback. If the UE identifier 1' is demodulated, the second terminal then UE identifier 1 ′ determines that the first terminal performs feedback. The resources and specific information of the feedback information of this method are also scheduled, so it is necessary to negotiate the configuration of scheduling these feedback information, such as negotiating the resource location and identification of the feedback scheduling. The terminal then monitors the feedback scheduling information to determine whether there is feedback.

The first transmission resource information and the second transmission resource information have a preset correspondence relationship. For example, the second terminal sends the first transmission information that carries the group identifier X, the UE identifier 2 as the source address, and the UE identifier 1 as the target address, and which data communication pool is desired to communicate with. The first terminal carries the group identifier X, the UE identifier 1 as a source address, and the UE identifier 2 as a target address according to the first transmission information, and the second transmission information indicating that this information is received and can be used for feedback. The specific feedback resource may have a default mapping relationship with the resource selected in the data communication pool, that is, the second transmission resource information is determined according to the first transmission resource information.

The side link information feedback method on the first terminal side is described above, and the side link information feedback method on the second terminal side will be further described below with reference to the accompanying drawings.

As shown in FIG. 2, an embodiment of the present disclosure provides a side link information feedback method, which is applied to a second terminal side. The method includes the following steps: 21 and 22.

Step 21: Send first transmission information related to the side link transmission to the first terminal.

The side-link transmission in this embodiment includes: unicast or multicast. The first transmission information is used to instruct the second terminal how to perform side-link transmission with the first terminal. For example, the first transmission information includes a group identifier of an interest group to which the first terminal and the second terminal belong, and a first terminal identifier of the first terminal. At least one of a second terminal identifier of the second terminal and first transmission resource information related to the side link transmission.

The first transmission resource information in the embodiment of the present disclosure includes, but is not limited to, resource information selected from a data communication resource pool, hybrid automatic repeat request HARQ process number information, reference signal configuration information for RLM, and reference signal configuration for beam management. At least one of information and antenna transmission mode information.

Step 22: Receive second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

The second terminal determines whether the first terminal receives and feedbacks the data sent by the second terminal according to the second transmission information, so as to realize the feedback of the side link transmission and ensure the reliability of the side link transmission.

Before step 21, the method further includes: determining a first terminal that establishes a side link transmission with the second terminal. The step includes: determining a terminal belonging to the same interest group as the second terminal as the first terminal according to at least one of the following target information; wherein the target information includes but is not limited to:

Application layer or control layer interaction information; for example, the terminal interacts with the V2X application layer or the V2X control function layer to ensure that the two terminals can be in an interest group of the V2X upper layer. This method is similar to the sidelink transmission found in the LTE system The two terminals of the mechanism can be in an interest group to ensure that services can use the same encryption and decryption process and can understand each other. For example, it is identified by a service independent service ID.

Air interface transmission information; for example, two terminals send air interface transmission information on the air interface, such as similar to discovery signal / information or data transmission signal / information, and the sidelink air interface realizes that the two terminals are in the same interest group and the air interface distance is compared. near.

Discovery signal / information or data transmission signal / information; for example, carried in the discovery signal / information or transmission transmission signal / information: the group identification of the interest group, the terminal identification of each terminal in the group, and the like. The terminal identifier can be used for subsequent side-link transmission and feedback negotiation between the two terminals. For example, among two terminals, the group identifier of the first terminal is X, the group identifier of the first terminal is UE identifier 1, the group identifier of the second terminal is X, and the group identifier of the second terminal is UE identifier 2.

Instructions for network devices. This method is the discovery of a terminal that can perform side-link transmission with the assistance or instruction of a network device. For example, the network device knows that the two terminals are close to each other, so it can directly indicate that the two terminals can perform side-link transmission.

The second transmission information includes: a group identifier of the interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, a second terminal identifier of the second terminal, feedback indication information of whether to receive feedback, and At least one of second transmission resource information related to receiving feedback and identification information related to receiving feedback.

Among them, the first terminal and the second terminal belong to the same interest group, and the services transmitted between the two can use the same encryption and decryption process to understand each other. The first terminal identifier is used to indicate the identity information of the first terminal, and the second terminal identifier is used to indicate the identity information of the second terminal.

The second transmission resource information is used to indicate the position and size of the transmission resource related to the side-link transmission feedback, and the resource indicated by the second transmission resource information is determined from the data communication feedback resource pool.

The identification information related to receiving feedback refers to the identification information related to the second transmission resource information. The second terminal needs to demodulate the identification information to determine whether there is feedback from the first terminal. If the second terminal does not demodulate, it is considered that the first terminal has no feedback. The first terminal performs feedback.

The first transmission resource information and the second transmission resource information have a preset correspondence relationship, and the second transmission resource information to be fed back is determined according to the first transmission resource information.

In the side-link information feedback method of the embodiment of the present disclosure, the receiving terminal receives the first transmission information related to the side-link transmission, and feeds back the second transmission information to the transmitting terminal according to the first transmission information to indicate whether to The data sent by the end terminal is fed back, so that the receiving end terminal can receive and feedback the data transmitted by the sending end terminal, thereby ensuring the reliability of data transmission during the side-link transmission process.

The above embodiments describe the side-link information feedback method in different scenarios, and the corresponding terminal will be further described below with reference to the accompanying drawings.

The terminal in the embodiment of the present disclosure can implement the details of the side link information feedback method in the foregoing embodiment and achieve the same effect.

When the terminal is the first terminal, as shown in FIG. 3, the terminal 300 includes the following functional modules:

The first receiving module 310 is configured to receive first transmission information related to a side link transmission, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and the first terminal of the first terminal. At least one of an identifier, a second terminal identifier of a second terminal, and first transmission resource information related to a side link transmission;

The feedback module 320 is configured to feed back the second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.

The terminal 300 further includes:

The first determining module is configured to determine a second terminal that establishes a side link transmission with the first terminal.

The first determination module includes:

A first determining submodule, configured to determine, according to at least one of the following target information, a terminal that belongs to the same interest group as the first terminal as a second terminal;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal / information or data transmission signal / information;

Instructions for network devices.

The resource indicated by the second transmission resource information is determined from the data communication feedback resource pool.

The identification information related to receiving feedback refers to the identification information related to the second transmission resource information.

The first transmission resource information and the second transmission resource information have a preset correspondence relationship.

The first transmission resource information includes: the resource information determined from the data communication resource pool, the HARQ process number information of the hybrid automatic repeat request, the reference signal configuration information of the radio link monitoring RLM, the reference signal configuration information of the beam management, and the antenna At least one item of transmission mode information.

Among them, the side link transmission includes: unicast or multicast.

When the terminal is a second terminal, as shown in FIG. 4, the terminal 400 includes the following functional modules:

A first sending module 410 is configured to send first transmission information related to a side link transmission to a first terminal, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and the first terminal At least one of the first terminal identifier of the second terminal identifier, the second terminal identifier of the second terminal, and the first transmission resource information related to the side link transmission;

The second receiving module 420 is configured to receive second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback data sent by the second terminal.

The terminal 400 further includes:

The second determining module is configured to determine a first terminal that establishes a side link transmission with the second terminal.

The second determination module includes:

A second determining submodule, configured to determine, according to at least one of the following target information, a terminal that belongs to the same interest group as the second terminal as the first terminal;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal / information or data transmission signal / information;

Instructions for network devices.

The first transmission resource information includes: the resource information determined from the data communication resource pool, the HARQ process number information of the hybrid automatic retransmission request, the reference signal configuration information of the radio link monitoring RLM, the reference signal configuration information of the beam management, and the antenna. At least one item of transmission mode information.

Among them, the side link transmission includes: unicast or multicast.

It is worth noting that the transmitting terminal in the embodiment of the present disclosure sends the first transmission information related to the side link transmission to the receiving terminal, and the receiving terminal feeds back the second transmission information to the transmitting terminal according to the first transmission information to indicate Whether to feedback the data sent by the transmitting terminal, so that the receiving terminal can receive and feedback the data transmitted by the transmitting terminal, thereby ensuring the reliability of data transmission during the side-link transmission process.

It should be noted that it should be understood that the division of each module of the above terminal is only a division of logical functions. In actual implementation, it may be fully or partially integrated into a physical entity, or it may be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in hardware; some modules can be implemented in the form of software called by processing elements, and some modules can be implemented in hardware. For example, the determination module may be a separately established processing element, or it may be integrated and implemented in a certain chip of the above device. In addition, it may also be stored in the form of a program code in the memory of the above device, and a certain processing element of the above device may be used. Invoke and execute the functions of the above identified modules. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, or they can be implemented independently. The processing element described herein may be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor (DSP), or one or more Field Programmable Gate Array (FPGA). As another example, when one of the above modules is implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

In order to better achieve the foregoing objective, further, FIG. 5 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure. The terminal 50 includes, but is not limited to, a radio frequency unit 51, a network module 52, an audio output unit 53, The input unit 54, the sensor 55, the display unit 56, the user input unit 57, the interface unit 58, the memory 59, the processor 510, and the power supply 511 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown, or some components may be combined, or different components may be arranged. In the embodiment of the present disclosure, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 51 is configured to transmit and receive data under the control of the processor 510.

When the terminal is a receiving terminal, that is, the first terminal, the radio frequency unit 51 is configured to receive first transmission information related to side-link transmission, where the first transmission information includes: an interest group to which the first terminal and the second terminal belong. At least one of the group identity of the first terminal, the first terminal identity of the first terminal, the second terminal identity of the second terminal, and the first transmission resource information related to the side link transmission;

When the terminal is a transmitting terminal, that is, a second terminal, the radio frequency unit 51 is configured to send the first transmission information related to the side link transmission to the first terminal, where the first transmission information includes the first terminal and the second terminal. At least one of a group identifier of an interest group to which the terminal belongs, a first terminal identifier of a first terminal, a second terminal identifier of a second terminal, and first transmission resource information related to side-link transmission;

In the embodiment of the present disclosure, the transmitting terminal sends the first transmission information related to the side-link transmission to the receiving terminal, and the receiving terminal feeds back the second transmission information to the transmitting terminal according to the first transmission information, so as to indicate whether to the transmitting terminal The sent data is fed back, so that the receiving terminal can receive and feedback the data transmitted by the sending terminal, thereby ensuring the reliability of data transmission during the side-link transmission process.

It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 51 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 510; The uplink data is sent to the base station. Generally, the radio frequency unit 51 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 51 can also communicate with a network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 52, such as helping users to send and receive email, browse web pages, and access streaming media.

The audio output unit 53 may convert audio data received by the radio frequency unit 51 or the network module 52 or stored in the memory 59 into audio signals and output them as sound. Moreover, the audio output unit 53 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 50. The audio output unit 53 includes a speaker, a buzzer, a receiver, and the like.

The input unit 54 is used for receiving audio or video signals. The input unit 54 may include a Graphics Processing Unit (GPU) 541 and a microphone 542. The graphics processor 541 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed. The processed image frames may be displayed on the display unit 56. The image frames processed by the graphics processor 541 may be stored in the memory 59 (or other storage medium) or transmitted via the radio frequency unit 51 or the network module 52. The microphone 542 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 51 in the case of a telephone call mode and output.

The terminal 50 further includes at least one sensor 55, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 561 according to the brightness of the ambient light, and the proximity sensor can close the display panel 561 and / or when the terminal 50 is moved to the ear. Or backlight. As a type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes). It can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 55 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.

The display unit 56 is used to display information input by the user or information provided to the user. The display unit 56 may include a display panel 561, and the display panel 561 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

The user input unit 57 may be configured to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 57 includes a touch panel 571 and other input devices 572. The touch panel 571, also known as a touch screen, can collect user's touch operations on or near it (for example, the user uses a finger, a stylus or any suitable object or accessory on the touch panel 571 or near the touch panel 571 operating). The touch panel 571 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal caused by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 510, receive the command sent by the processor 510 and execute it. In addition, the touch panel 571 may be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave. In addition to the touch panel 571, the user input unit 57 may further include other input devices 572. Specifically, other input devices 572 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.

Further, the touch panel 571 may be overlaid on the display panel 561. After the touch panel 571 detects a touch operation on or near the touch panel 571, the touch panel 571 is transmitted to the processor 510 to determine the type of the touch event. The type of event provides corresponding visual output on the display panel 561. Although in FIG. 5, the touch panel 571 and the display panel 561 are implemented as input and output functions of the terminal as two independent components, in some embodiments, the touch panel 571 and the display panel 561 may be integrated and Implement the input and output functions of the terminal, which are not limited here.

The interface unit 58 is an interface through which an external device is connected to the terminal 50. For example, the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, and audio input / output (I / O) port, video I / O port, headphone port, and more. The interface unit 58 may be used to receive an input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 50 or may be used between the terminal 50 and an external device. Transfer data.

The memory 59 can be used to store software programs and various data. The memory 59 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, and the like), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 59 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.

The processor 510 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal. By running or executing software programs and / or modules stored in the memory 59, and calling data stored in the memory 59, the execution Various functions and processing data of the terminal, so as to monitor the terminal as a whole. The processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc. The tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 510.

The terminal 50 may further include a power source 511 (such as a battery) for supplying power to various components. Optionally, the power source 511 may be logically connected to the processor 510 through a power management system, so as to implement charge, discharge, and power management through the power management system And other functions.

In addition, the terminal 50 includes some functional modules that are not shown, and details are not described herein again.

Optionally, an embodiment of the present disclosure further provides a terminal, including a processor 510, a memory 59, and a program stored on the memory 59 and executable on the processor 510, and the program is implemented when the processor 510 is executed The various processes of the side link information feedback method embodiment can achieve the same technical effect. To avoid repetition, details are not described herein again. The terminal may be a wireless terminal or a wired terminal. The wireless terminal may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless connection function, or other processing equipment connected to a wireless modem. . A wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal For example, it can be a portable, compact, handheld, computer-built or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (Personal Digital Assistant, PDA) and other devices. A wireless terminal can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal, The access terminal (Access terminal), user terminal (User terminal), user agent (User agent), user equipment (User Device or User Equipment) are not limited here.

An embodiment of the present disclosure also provides a computer-readable storage medium. A program is stored on the computer-readable storage medium. When the program is executed by a processor, the processes of the above-mentioned side link information feedback method embodiments are implemented, and the same Technical effects. To avoid repetition, we will not repeat them here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation should not be considered outside the scope of the present disclosure.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present disclosure is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

In addition, it should be pointed out that, in the apparatus and method of the present disclosure, it is obvious that each component or each step can be disassembled and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure. In addition, the steps for performing the series of processes described above can be performed naturally in chronological order in accordance with the described order, but need not necessarily be performed in chronological order, and certain steps can be performed in parallel or independently of each other. For a person of ordinary skill in the art, it is able to understand all or any steps or components of the methods and devices of the present disclosure, and may be implemented in hardware, firmware in any computing device (including a processor, a storage medium, etc.) or a network of computing devices. , Software, or a combination thereof, which can be achieved by a person of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.

Therefore, the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device. The computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product including a program code that implements the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. Obviously, the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that, in the apparatus and method of the present disclosure, it is obvious that each component or each step can be disassembled and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure. In addition, the steps for performing the above-mentioned series of processes can be naturally performed in chronological order in accordance with the described order, but need not necessarily be performed in chronological order. Certain steps can be performed in parallel or independently of each other.

The above is an optional implementation of the present disclosure. It should be noted that for ordinary people in the technical field, several improvements and retouches can be made without departing from the principles described in the present disclosure. These improvements and retouches are also Within the scope of this disclosure.

Claims

A side link information feedback method applied to a first terminal includes:

Receiving first transmission information related to side-link transmission, wherein the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, At least one of a second terminal identifier of the second terminal and first transmission resource information related to the side link transmission;

Feedback the second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback the data sent by the second terminal.
The side link information feedback method according to claim 1, before the step of receiving the first transmission information related to the side link transmission, further comprising:

Determining a second terminal that establishes the side link transmission with the first terminal.
The side-link information feedback method according to claim 2, wherein the step of determining a second terminal for establishing the side-link transmission with the first terminal comprises:

Determining, as at least one of the following target information, a terminal that belongs to the same interest group as the first terminal as a second terminal;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal, discovery information, data transmission signal, or data transmission information;

Instructions for network devices.
The side-link information feedback method according to claim 1, wherein the second transmission information comprises: a group identifier of an interest group to which the first terminal and the second terminal belong, and a first terminal identifier of the first terminal At least one of a second terminal identifier of the second terminal, feedback indication information about whether to receive feedback, second transmission resource information related to the received feedback, and identification information related to the received feedback.
The method of claim 4, wherein the resource indicated by the second transmission resource information is determined from a data communication feedback resource pool.
The side-link information feedback method according to claim 4, wherein the identification information related to the received feedback refers to identification information related to the second transmission resource information.
The method according to claim 4, wherein the first transmission resource information and the second transmission resource information have a preset correspondence relationship.
The side link information feedback method according to claim 1, wherein the first transmission resource information comprises: resource information determined from a data communication resource pool, hybrid automatic repeat request HARQ process number information, and wireless link monitoring At least one of reference signal configuration information of RLM, reference signal configuration information of beam management, and antenna transmission mode information.
The side-link information feedback method according to claim 1, wherein the side-link transmission comprises: unicast or multicast.
A terminal, where the terminal is a first terminal and includes:

A first receiving module, configured to receive first transmission information related to a side-link transmission, wherein the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and the first terminal At least one of a first terminal identifier of the terminal, a second terminal identifier of the second terminal, and first transmission resource information related to the side link transmission;

A feedback module is configured to feedback second transmission information to the second terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback data sent by the second terminal.
The terminal according to claim 10, further comprising:

A first determining module, configured to determine a second terminal that establishes the side link transmission with the first terminal.
The terminal according to claim 11, wherein the first determining module comprises:

A first determining submodule, configured to determine, according to at least one of the following target information, a terminal that belongs to the same interest group as the first terminal as a second terminal;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal, discovery information, data transmission signal, or data transmission information;

Instructions for network devices.
The terminal according to claim 10, wherein the second transmission information comprises: a group identifier of an interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, and the second terminal At least one of a second terminal identifier of the terminal, feedback indication information about whether to receive feedback, second transmission resource information related to the received feedback, and identification information related to the received feedback.
The terminal according to claim 10, wherein the first transmission resource information comprises: resource information determined from a data communication resource pool, hybrid automatic repeat request HARQ process number information, and reference signal configuration of a radio link monitoring RLM At least one of information, reference signal configuration information for beam management, and antenna transmission mode information.
The terminal according to claim 10, wherein the side link transmission comprises: unicast or multicast.
A side link information feedback method applied to a second terminal includes:

Sending first transmission information related to side-link transmission to a first terminal, where the first transmission information includes: a group identifier of an interest group to which the first terminal and the second terminal belong, and the first terminal At least one of a first terminal identifier of the second terminal identifier, a second terminal identifier of the second terminal, and first transmission resource information related to the side link transmission;

Receiving second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive and feedback data sent by the second terminal.
The side-link information feedback method according to claim 16, before the step of sending the first transmission information related to the side-link transmission to the first terminal, further comprising:

A first terminal that establishes the side link transmission with the second terminal is determined.
The side-link information feedback method according to claim 17, wherein the step of determining a first terminal for establishing the side-link transmission with the second terminal comprises:

Determining, as at least one of the following target information, a terminal that belongs to the same interest group as the second terminal as the first terminal;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal, discovery information, data transmission signal, or data transmission information;

Instructions for network devices.
The side-link information feedback method according to claim 16, wherein the second transmission information comprises: a group identifier of an interest group to which the first terminal and the second terminal belong, and a first terminal identifier of the first terminal At least one of a second terminal identifier of the second terminal, feedback indication information about whether to receive feedback, second transmission resource information related to the received feedback, and identification information related to the received feedback.
The side-link information feedback method according to claim 19, wherein the resource indicated by the second transmission resource information is determined from a data communication feedback resource pool.
The side-link information feedback method according to claim 19, wherein the identification information related to the received feedback refers to identification information related to the second transmission resource information.
The method according to claim 19, wherein the first transmission resource information and the second transmission resource information have a preset correspondence relationship.
The side-link information feedback method according to claim 16, wherein the first transmission resource information comprises: resource information determined from a data communication resource pool, hybrid automatic repeat request HARQ process number information, and wireless link monitoring At least one of reference signal configuration information of RLM, reference signal configuration information of beam management, and antenna transmission mode information.
The side-link information feedback method according to claim 16, wherein the side-link transmission comprises: unicast or multicast.
A terminal, where the terminal is a second terminal and includes:

A first sending module, configured to send first transmission information related to side-link transmission to a first terminal, where the first transmission information includes: a group of an interest group to which the first terminal and the second terminal belong At least one of an identifier, a first terminal identifier of the first terminal, a second terminal identifier of the second terminal, and first transmission resource information related to the side link transmission;

A second receiving module, configured to receive second transmission information fed back by the first terminal according to the first transmission information, where the second transmission information is used to indicate whether to receive data sent by the second terminal Feedback.
The terminal according to claim 25, further comprising:

A second determining module, configured to determine a first terminal that establishes the side link transmission with the second terminal.
The terminal according to claim 26, wherein the second determining module comprises:

A second determining submodule, configured to determine a terminal that belongs to the same interest group as the second terminal as the first terminal according to at least one of the following target information;

The target information includes:

Interaction information at the application or control level;

Air interface transmission information;

Discovery signal, discovery information, data transmission signal, or data transmission information;

Instructions for network devices.
The terminal according to claim 25, wherein the second transmission information comprises: a group identifier of an interest group to which the first terminal and the second terminal belong, a first terminal identifier of the first terminal, and the second terminal At least one of a second terminal identifier of the terminal, feedback indication information about whether to receive feedback, second transmission resource information related to the received feedback, and identification information related to the received feedback.
The terminal according to claim 25, wherein the first transmission resource information comprises: resource information determined from a data communication resource pool, hybrid automatic repeat request HARQ process number information, and reference signal configuration of a radio link monitoring RLM At least one of information, reference signal configuration information for beam management, and antenna transmission mode information.
The terminal according to claim 25, wherein the side-link transmission comprises: unicast or multicast.
A terminal comprising a processor, a memory, and a program stored on the memory and running on the processor, wherein the program is implemented as claimed in claims 1 to 9 when executed by the processor or Steps of the side-link information feedback method according to any one of 16 to 24.
A computer-readable storage medium, wherein a program is stored on the computer-readable storage medium, and the program implements the side chain according to any one of claims 1 to 9 or 16 to 24 when executed by a processor. Steps of the feedback method.