WO2020108043A1

WO2020108043A1 - Information sending and receiving methods and device

Info

Publication number: WO2020108043A1
Application number: PCT/CN2019/107301
Authority: WO
Inventors: 张锦芳; 苏宏家; 向铮铮
Original assignee: 华为技术有限公司
Priority date: 2018-11-28
Filing date: 2019-09-23
Publication date: 2020-06-04
Also published as: CN111246419A

Abstract

A solution provided in an embodiment of the present invention comprises: a first terminal generating feedback information directed to a second terminal; the first terminal generating first information according to the feedback information and an identifier of the second terminal; and the first terminal sending the first information to the second terminal. Accordingly, when receiving the first information, the second terminal can confirm that the feedback information in the first information is directed thereto. Moreover, in the situation where terminals can select sidelink resources by themselves, if a sidelink resource selected by another terminal is the same as a transmission resource used to performed communication between the first terminal and the second terminal, said terminal can confirm that feedback information is not directed thereto. The invention can prevent a third terminal from making an erroneous determination when mistakenly ascertaining that feedback information is directed thereto, thereby enhancing reliability of using a sidelink to perform transmission. The invention is applicable to an internet of vehicles, such as a V2X network, an LTE-V network and a V2V network, or is applicable to fields such as D2D, intelligent driving and intelligent connected vehicles.

Description

Information sending method, receiving method and device

This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office on November 28, 2018, with the application number 201811434184.7 and the application name as "an information sending method, receiving method and device", the entire content of which is incorporated by reference In this application.

Technical field

Embodiments of the present application relate to the field of communication technologies, and in particular, to an information sending method, receiving method, and device.

Background technique

In the 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE) and New Radio (NR) (also known as 5th Generation (5G) network) Of vehicles standardize all vehicle-to-everything (V2X) communications. In addition, V2X services were introduced in LTE and NR.

Connect vehicles through V2X communication system, including vehicle-to-vehicle (V2V), vehicle-to-Pedestrian (V2P), vehicle-to-infrastructure (V2I) and vehicle-to-network (Vehicle toto Network, V2N) intelligent transportation business. Except for V2N vehicle and network communications that use uplink and downlink, the rest of V2V/V2I/V2P data communications use side links for communications. The side link (SL) is defined for direct communication between the communication device and the communication device, that is, the communication device and the communication device communicate directly without forwarding through the base station.

V2X services can usually be sent by terminal A to terminal B using side resources on the side link. The side resource may be allocated to terminal A by the base station to which terminal A belongs, or may be determined by terminal A itself. When the terminal can determine the side resource by itself, a resource collision problem may occur. For example, the side resources selected by any two terminals have one or more of the same time, frequency, code, and space domains, or the side resources selected by terminal 1 and the side rows allocated by the base station to terminal 2 The resources have one or more of the same time domain, frequency domain, code domain and space domain.

In the case that the terminal determines the side link resources by itself, if the side resources selected by different terminals have the same time domain, information sent by different terminals may collide or receive errors. As the number of terminals increases or the amount of traffic increases, the reliability of side link communication cannot be satisfied.

Summary of the invention

Embodiments of the present invention provide an information sending method, receiving method, and device, to improve the reliability of information transmission on a side link.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

In a first aspect, an embodiment of the present application provides an information sending method. The method includes: a first terminal generates feedback information for a second terminal. The first terminal generates first information according to the feedback information and the identifier of the second terminal. The first terminal sends the first information to the second terminal.

An embodiment of the present application provides an information sending method, which generates first information having feedback information and identification information of a second terminal through a first terminal, and sends the first information to the second terminal. In this way, when the second terminal receives the first information, it can determine whether the feedback information in the first information is transmitted to the second terminal according to the criteria of the second terminal in the first information. In addition, in the case where the terminal can select the side resource by itself, if the side resource selected by the other terminal and the transmission resource for communication between the first terminal and the second terminal are the same, the other terminal may determine that the feedback information is not Send to other terminals. In this way, when other terminals determine that the feedback information is not sent to themselves, on the one hand, they may not parse the feedback information, and on the other hand, they can avoid the misjudgment caused by other terminals thinking that the feedback information is sent to themselves. Therefore, the reliability of the side link transmission can be improved.

Optionally, the first terminal sends the first information to the second terminal, which may specifically be: the first terminal sends the first information to the second terminal on the transmission link with the second terminal.

In a possible implementation manner, the first terminal generates the first information according to the feedback information and the identifier of the second terminal, including: the first terminal generates the first information, and the first information includes the feedback information and the first The logo of the second terminal. In this way, by carrying the identifier of the second terminal in the first information, the identifier indicating the second terminal can be displayed to all terminals that receive the first information.

In a possible implementation manner, the number of bits of the feedback information is less than or equal to N, and N is a positive integer. In this way, when the number of bits of the feedback information is less than or equal to N, the identifier of the second terminal may be carried in the first information carrying the feedback information.

In a possible implementation manner, the first terminal generates the first information according to the feedback information and the identifier of the second terminal, including: the first terminal generates the first information, and the first information includes the feedback information and the second terminal Identify the scrambling check code. In this way, the first information may carry the check code scrambled using the identifier of the second terminal, which not only improves the reliability of feedback information transmission, but also implicitly indicates to all terminals receiving the first information that the feedback information is transmission For the second terminal.

In a possible implementation manner, the first terminal generating the first information according to the feedback information and the identifier of the second terminal includes: the first terminal generates a check code according to the feedback information; the first terminal uses the identifier of the second terminal to The check code is scrambled to obtain a check code scrambled using the identifier of the second terminal; the first terminal generates the first information according to the feedback information and the check code scrambled using the identifier of the second terminal. This can implicitly indicate the identity of the second terminal.

In a possible implementation, the number of feedback information bits is greater than or equal to N+1. This is convenient for the second terminal to determine that the feedback information is transmitted to the second terminal by scrambling when the number of bits of the feedback information is greater than or equal to N+1.

In a possible implementation manner, the number of bits of the identifier of the second terminal is the same as the number of bits of the check code.

In a possible implementation manner, the feedback information is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal; wherein, the confirmation information is used to indicate the first Whether the side information acquired by the terminal from the second terminal is correctly received; wherein, the channel state information is used to indicate the channel parameter between the first terminal and the second terminal.

In a possible implementation manner, the information used for effective transmission by the second terminal includes one or more of the following information: interference information, available transmission resource information, and movement speed information.

In a second aspect, an embodiment of the present application provides an information receiving method. The method includes: a second terminal receives first information from a first terminal, where the first information is based on feedback information and an identification of the second terminal Generated, the second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.

In a possible implementation manner, the first information includes feedback information and an identifier of the second terminal.

In a possible implementation manner, before the second terminal determines that the feedback information is directed to the second terminal according to the identifier of the second terminal, the method provided in this embodiment of the present application further includes: The terminal determines that the first information includes the identifier of the second terminal.

Correspondingly, the second terminal determining that the feedback information is for the second terminal based on the first information includes: the second terminal is based on the identifier of the second terminal, and the feedback information is for the second terminal.

In a possible implementation manner, the number of bits of the feedback information is less than or equal to N, and N is a positive integer.

In a possible implementation manner, the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.

In a possible implementation manner, before the second terminal determines that the feedback information is directed to the second terminal according to the identifier of the second terminal, the method provided in this embodiment of the present application further includes: The terminal uses the identifier of the second terminal to descramble the check code in the first information.

In a possible implementation manner, the second terminal determines that the feedback information is for the second terminal according to the first information, including: after the second terminal uses the identifier of the second terminal to descramble the check code in the first information, determine The feedback information belongs to the second terminal.

In a possible implementation, the number of feedback information bits is greater than or equal to N+1.

In a possible implementation manner, the feedback information is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal; wherein, the confirmation information is used to indicate Whether the side information acquired by the first terminal from the second terminal is correctly received; wherein, the channel state information is used to indicate a channel parameter acquired by the first terminal and the second terminal.

In a third aspect, an embodiment of the present application provides an information sending apparatus. The information sending apparatus can implement the information sending method described in the first aspect or any possible implementation manner of the first aspect, and therefore can also Achieving beneficial effects in the first aspect or any possible implementation manner of the first aspect. The information sending device may be a first terminal, or may be a device that can support the first terminal to implement the first aspect or any possible implementation manner of the first aspect. For example, it is applied to the chip in the first terminal. The information sending device can implement the above method through software, hardware, or executing corresponding software through hardware.

An example of an information sending device includes a processing unit for generating feedback information for a second terminal, and for generating first information based on the feedback information and the identification of the second terminal. The sending unit is configured to send the first information to the second terminal.

Optionally, the sending unit is specifically configured to send the first information to the second terminal on the transmission link with the second terminal.

In a possible implementation manner, the processing unit is configured to generate the first information according to the feedback information and the identifier of the second terminal, specifically including: the processing unit is specifically configured to generate the first information, and the first information includes the feedback information and the second The identification of the terminal.

In a possible implementation manner, the processing unit is configured to generate first information according to the feedback information and the identifier of the second terminal, specifically including: the processing unit is specifically configured to generate the first information, and the The first information includes the feedback information and a check code scrambled using the identifier of the second terminal.

In a possible implementation, the processing unit is specifically configured to generate a check code based on the feedback information, and use the identifier of the second terminal to scramble the check code to obtain the identifier of the second terminal. A scrambling check code; and generating the first information according to the feedback information and the scrambling check code using the identifier of the second terminal.

In a possible implementation manner, for the specific content of the feedback information, reference may be made to the description of the relevant places in the first aspect, which is not repeated here.

As another example, the information sending apparatus provided in the embodiments of the present application may be a first terminal or a chip applied in the first terminal. The information sending apparatus includes: a communication interface and one or more processes Device.

The information sending device communicates with other devices through a communication interface. When one or more processors execute instructions, an information sending device performs an information sending method as described in the first aspect above.

For example, the communication interface is used to support the information sending apparatus to perform the steps of receiving/transmitting messages/data on the side of the information sending apparatus described in any possible implementation manner of the first aspect to the first aspect. The processor is used to support the information sending apparatus to perform the steps of performing message/data processing on the side of the information sending apparatus described in any possible implementation manner of the first aspect to the first aspect. For specific corresponding steps, reference may be made to the description in any possible implementation manner of the first aspect to the first aspect, and details are not described herein again.

Optionally, the communication interface and the processor of the information sending device are coupled to each other.

Optionally, the information sending device may further include a memory for storing computer program code, and the computer program code includes instructions. Optionally, the processor, communication interface and memory are coupled to each other.

Exemplarily, in another example of the third aspect, a processor may be used to replace the processing unit in one example of the third aspect, and a communication interface may be used to replace the sending unit in one example of the third aspect. Specific content may be Refer to the description in the third aspect, which will not be repeated here.

According to a fourth aspect, an embodiment of the present application provides an information receiving apparatus. The information receiving apparatus can implement the information receiving method described in the second aspect or any possible implementation manner of the second aspect, and therefore can also Achieving beneficial effects in the second aspect or any possible implementation manner of the second aspect. The information receiving apparatus may be a second terminal, or may be an apparatus that can support the second terminal to implement the second aspect or any possible implementation manner of the second aspect. For example, it is applied to the chip in the second terminal. The information receiving apparatus may implement the above method through software, hardware, or through hardware to execute corresponding software.

An example, an embodiment of the present application provides an information receiving apparatus, the apparatus includes: a receiving unit configured to receive first information from a first terminal, wherein the first information is based on feedback information and the second terminal Generated by the logo. The processing unit is configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.

Specifically, the receiving unit is specifically configured to receive the first information from the first terminal on the transmission link with the first terminal.

In a possible implementation manner, the first information includes the feedback information and the identifier of the second terminal.

In a possible implementation manner, the processing unit is configured to determine that the first information includes the identifier of the second terminal.

In a possible implementation manner, the processing unit is specifically configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.

In a possible implementation manner, the first information includes the feedback information and a check code scrambled using the identifier of the second terminal.

In a possible implementation manner, it is specifically used to descramble the check code in the first information by using the identifier of the second terminal.

In a possible implementation manner, the processing unit is specifically configured to determine that the feedback information is for the second terminal when the check code in the first information is correctly decoded using the identifier of the second terminal.

As another example, the information receiving apparatus provided in the embodiments of the present application may be a second terminal or a chip applied in the second terminal. The information receiving apparatus includes: a communication interface and one or more processes Device.

The information receiving apparatus communicates with other devices through a communication interface. When one or more processors execute instructions, a resource adjusting apparatus executes an information receiving method as described in the second aspect above.

For example, the communication interface is used to support the information receiving apparatus to perform the steps of receiving/transmitting messages/data on the side of the information receiving apparatus described in any possible implementation manner of the second aspect to the second aspect. The processor is used to support the information receiving apparatus to perform the steps of performing message/data processing on the side of the information receiving apparatus described in any possible implementation manner of the second aspect to the second aspect. For specific corresponding steps, reference may be made to the description in any possible implementation manner of the second aspect to the second aspect, and details are not described herein again.

Optionally, the communication interface and the processor of the information receiving device are coupled to each other.

Optionally, the information receiving apparatus may further include a memory for storing computer program code, and the computer program code includes instructions. Optionally, the processor, communication interface and memory are coupled to each other.

Exemplarily, in another example of the fourth aspect, a processor may be used in place of the processing unit in one example of the fourth aspect, and a communication interface may be used in place of the receiving unit in one example of the fourth aspect. Specific content may be With reference to the description in the fourth aspect, it will not be repeated here.

According to a fifth aspect, an embodiment of the present application provides a computer-readable storage medium that stores instructions, and when the instructions run on a computer, the computer is allowed to execute the first aspect or various possibilities of the first aspect An information sending method described in the implementation.

In a sixth aspect, the present application provides a computer-readable storage medium having instructions stored therein, which when executed on a computer, causes the computer to perform the second aspect or various possible implementations of the second aspect An information receiving method described in the method.

In a seventh aspect, the present application provides a computer program product including instructions, which when executed on a computer, causes the computer to execute the information transmission method described in the first aspect or various possible implementation manners of the first aspect .

In an eighth aspect, the present application provides a computer program product including instructions, which when executed on a computer, causes the computer to execute the information receiving method described in the second aspect or various possible implementation manners of the second aspect .

In a ninth aspect, an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, and the communication interface is coupled to the processor. The processor is used to run a computer program or instructions to implement the first aspect or various aspects of the first aspect. An information sending method described in a possible implementation manner. The communication interface is used to communicate with other modules than the chip.

According to a tenth aspect, an embodiment of the present application provides a chip including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a computer program or instruction to implement the second aspect or various aspects of the second aspect. An information receiving method described in a possible implementation manner. The communication interface is used to communicate with other modules than the chip.

According to an eleventh aspect, an embodiment of the present application provides a communication system, including: the third aspect and an information sending device described in any one of various possible implementation manners of the third aspect, and the fourth aspect and Any one of various possible implementation manners of the fourth aspect describes an information receiving device.

According to a twelfth aspect, an embodiment of the present application provides a communication device including one or more modules for implementing the methods of the first aspect and the second aspect, the one or more modules may be On the one hand, the steps of the method on the second aspect correspond.

For the beneficial effects of the second aspect to the twelfth aspect and their various implementations in this application, reference may be made to the beneficial effects analysis in the first aspect and its various implementations, which will not be repeated here.

BRIEF DESCRIPTION

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

2 is a schematic diagram of a V2X communication system provided by an embodiment of the present application;

3 is a second schematic diagram of a communication system provided by an embodiment of the present application;

4 is a schematic diagram of data transmission provided by an embodiment of the present application;

5 is a schematic diagram of a resource scheduling mode provided by an embodiment of this application;

FIG. 6 is a schematic flowchart of an interaction between an information sending method and a receiving method provided by an embodiment of this application;

7 to 11 are schematic structural diagrams of first information provided by embodiments of the present application;

12 is a schematic structural diagram of a terminal according to an embodiment of the present application;

13 is a schematic structural diagram 1 of a first terminal according to an embodiment of the present application;

14 is a second schematic structural diagram of a first terminal according to an embodiment of this application;

15 is a schematic structural diagram 1 of a second terminal according to an embodiment of the present application;

16 is a second schematic structural diagram of a second terminal according to an embodiment of the present application;

17 is a schematic structural diagram of a chip provided by an embodiment of the present application.

detailed description

In order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish the same items or similar items whose functions and functions are basically the same. For example, the first terminal and the second terminal are only for distinguishing different terminals, and their order is not limited. Those skilled in the art may understand that the words "first" and "second" do not limit the number and execution order, and the words "first" and "second" do not necessarily mean different.

It should be noted that in the present application, the words "exemplary" or "for example" are used as examples, illustrations or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as more preferred or advantageous than other embodiments or design. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the related object is a "or" relationship. "At least one of the following" or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .

Before introducing the embodiments of the present application, first introduce the nouns involved in the embodiments of the present application:

1). Sidelink (sidelink, SL) refers to: a link defined for direct communication between the terminal and the terminal, that is, a link that communicates directly between the terminal and the terminal without being forwarded by the base station.

2). The sidelink resource refers to the resource that terminal 1 transmits sidelink information with terminal 2 on the side link.

3). Sidelink information refers to user data or control information transmitted by any two terminals on the sidelink.

The system architecture and business scenarios described in the embodiments of the present application are to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. In the embodiments of the present application, the method provided is applied to an LTE system, an NR system, or a 5G network as an example for description.

Exemplarily, if the side resources communicated between the terminals do not have a uniform resource scheduling mechanism, the following problems may occur: As shown in FIG. 1, since the terminal 1 is outside the coverage of the base station 10, the base station 10 cannot perform resource scheduling . At this time, if terminal 1 and terminal 3 send data to terminal 2 at the same time, if the side resource selected by terminal 1 is the same as the side resource allocated by base station 10 to terminal 3, due to resource collision, the transmission of terminal 1 and terminal 3 is at terminal 2 The terminals may not be solvable, or the communication distance may be different. For example, terminal 3 is closer to terminal 2, then terminal 2 can decode the data sent by terminal 3, and terminal 2 cannot decode the data of terminal 1.

Generally, terminal 2 will feedback ACK to terminal 3 on the feedback channel. Since the time-frequency resource occupied by the feedback channel corresponds to the side data channel resource, the ACK sent by terminal 2 will be received by terminal 1 and terminal 3 at the same time. If the feedback information is a sequence, for example, ACK uses sequence 1, and NACK uses sequence 2, respectively generated according to the configuration of the sending terminal, for example, the configuration of terminal 3, and/or the identification of terminal 3. Exemplarily, terminal 2 can generate a correct sequence for receiving data from terminal 3 and send it, so that terminal 3 can recognize that the data sent to terminal 2 is correctly received. Since terminal 1 does not receive feedback information for itself, the terminal 1 will recognize that the data sent to terminal 2 was not received correctly. If the feedback information is encoded data, since the feedback information does not carry the identification information of the sending terminal, the terminal 1 and the terminal 3 will think that the data sent to the terminal 2 is correctly received, but in fact, the terminal 2 cannot solve the terminal 1’s data. The above problem is unavoidable in the scenario where at least one terminal can select side resources by itself when two terminals communicate, and it will become very serious with the increase in the number of terminals or the increase in business volume, which will require some reliability Higher business has a serious impact.

Based on this, an embodiment of the present application provides an information sending method. The first terminal generates the first information according to the feedback information for the second terminal and the identifier of the second terminal, and then sends the first information to the second terminal, so that the second terminal is receiving When the first information is reached, it can be determined that the feedback information belongs to the second terminal, and when other terminals receive the first information, they can determine that the feedback information is not sent to themselves, thereby avoiding misjudgment.

In 3GPP, a car networking technology based on a cellular network is proposed, which connects cars through a V2X communication system. As shown in Figure 2, the V2X communication system includes vehicle-to-vehicle (V2V), vehicle-to-Pedestrian (V2P) (including pedestrians, cyclists, drivers, or passengers), and vehicle-to-infrastructure (Vehicle to Infrastructure (V2I) (for example, vehicle to roadside unit (RSU) communication) and vehicle to network (Vehicle to Network (V2N) (for example, vehicle to base station/network communication) intelligent transportation business. Except for V2N vehicle and network communication using uplink and downlink, the rest of V2V/V2I/V2P data communication uses side links for communication.

There are two types of roadside devices: terminal-type RSUs. Because they are deployed on the roadside, the terminal-type RSUs are in a non-mobile state and do not need to consider mobility. The base station type RSU can provide timing synchronization and resource scheduling to the vehicles it communicates with.

As shown in FIG. 3, FIG. 3 shows a schematic diagram of a communication system provided by an embodiment of the present application. The communication system includes: a wireless communication device 101, one or more first terminals 102 communicating with the wireless communication device 101, and At least one second terminal 103 and third terminal 104 that the first terminal 102 communicates with.

Among them, the wireless communication device 101 has a Uu link with the first terminal 102 or the second terminal 103 (hereinafter the second transmission link is taken as an example). There is a side link between the first terminal 102 and the second terminal 103 (hereinafter, the first transmission link is taken as an example). There is a side link between the first terminal 102 and the third terminal 104.

The first terminal 102 and the second terminal 103 may transmit V2X services to each other on the sidelink, which may also be referred to as side information. The first terminal 102 may transmit the uplink Uu service to the wireless communication device 101 on the Uu link, or may receive the downlink Uu service sent by the wireless communication device 101 on the Uu link.

Normally, V2X services are transmitted on the side resources on the sidelink, and Uu services are transmitted on the Uu resources on the Uu link.

Among them, the side resources include a set of time-domain resources and frequency-domain resources. The time domain resources may be continuous or non-contiguous resources in the time domain. Specifically, for the time domain resource, there may be different time granularities such as frame, subframe (Subframe), slot (Slot), mini-slot, and symbol (Symbol). Taking the symbol as the time granularity, the time domain resource may include one or more consecutive or non-continuous symbols, and some or all of the one or more symbols may belong to one or more time slots. For frequency domain resources, the frequency band used for side communication can be divided into several subchannels (subchannels), each subchannel contains a certain number, which can be no less than one, Resource Block (Resource Block, RB). One side transmission can occupy one or more sub-channels and is used to transmit SL scheduling assignment (SA) control messages (sidelink control information, SCI) and user data.

The wireless communication device 101 may provide a basic device of a wireless network, such as a cellular network base station, etc., to provide support for communication between terminals, for example, to provide communication between the wireless communication device 101 and the first terminal 102.

The wireless communication device 101 may be an evolved Node (Based Station, eNB) in a long-term evolution (LTE). Among them, the eNB accesses the 4G core network (for example, Evolved Packet Core (EPC)) through the S1 interface.

With the continuous development of mobile communication technology, 4G networks have gradually evolved to 5G networks. During the evolution process, the LTE system can evolve into an eLTE system. The eNB in the eLTE system can be connected to the EPC network, and can also be connected to the Next-Generation Core (NG-Core) network.

The wireless communication device 101 may also be the Next Generation Node B (gNB) in the NR system in the NR. The gNB is connected to the NG-Core network through the N2 interface.

The wireless communication device 101 may be a traditional macro base station eNB (evolved node B) in a traditional Universal Mobile Telecommunications System (UMTS)/LTE wireless communication system, or may be a Heterogeneous Network (HetNet) scenario The micro base station eNB may be a baseband processing unit (Base and Band Unit, BBU) and a radio frequency unit (Remote Radio Unit, RRU) in a distributed base station scenario, and may be a cloud radio access network (Cloud Radio Access Access Netowrk, CRAN) scenario The baseband pools BBUpool and RRU can be gNB in the future wireless communication system.

Among them, the interface of the first terminal 102 and the second terminal 103, the first terminal 102 and the third terminal 104 through direct connection communication may be the interface 1, for example, the interface 1 may be referred to as the PC5 interface, using a dedicated frequency band for car networking (such as 5.9GHz ), and the interface between the first terminal 102 or the second terminal 103 and the wireless communication device 101 may be referred to as interface 2 (for example, Uu interface), using a cellular network frequency band (for example, 1.8 GHz).

The names of the above interfaces 1 and 2 are only examples, and the names of the interfaces 1 and 2 are not limited in the embodiment of the present application.

The terminal is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons, and Satellite first class). The terminal is also called user equipment (user equipment (UE), mobile station (MS), mobile terminal (MT) and terminal equipment, etc.). It is a kind of device that provides voice and/or data connectivity to users. device. For example, the terminal includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Currently, the terminal can be: a mobile phone (mobile phone), a tablet computer, a laptop computer, a palmtop computer, a mobile internet device (mobile internet device, MID), a wearable device (such as a smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric cars, airplanes, ships, trains, high-speed rail, etc.), virtual reality (virtual reality) equipment, augmented reality (augmented reality) equipment, industrial control (industrial Wireless terminals, smart home devices (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving (self-driving), wireless terminals in remote surgery (remote medical), smart Wireless terminals in the grid (smart), transportation terminals (transportation safety), wireless terminals in the smart city (smart city), or wireless terminals in the smart home (smart home), flight equipment (for example, smart Robots, hot air balloons, drones, airplanes, etc. In a possible application scenario of the present application, the terminal device is a terminal device that often works on the ground, for example, a vehicle-mounted device. In this application, for convenience of description, chips deployed in the above-mentioned devices, such as a system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions may also be called terminals.

The terminal may be a vehicle-mounted communication module or other embedded communication module, or a user's handheld communication device, including a mobile phone, a tablet computer, and so on.

Among them, the side resources can be determined by the following two methods:

Method 1. In LTE, the wireless communication device corresponding to the terminal allocates time-frequency resources to the terminal within the coverage of the wireless communication device. The terminal sends the control message and user data of the side communication on the scheduled time-frequency resource according to the scheduling information of the wireless communication device, which is called LTE mode 3 transmission mode or scheduled transmission mode. The new radio (NR) includes NR mode-1, where NR mode-1 also includes: dynamically scheduled transmission by the base station, semi-static transmission configured by the base station, and unscheduled transmission configured by the base station.

Method 2. In LTE, the terminal selects the time-frequency resources used for communication among the available time-frequency resources included in the side resources, and sends control messages and data on the selected time-frequency resources, which is called LTE mode 4 transmission mode or Unscheduled transmission mode. In the sideways unscheduled transmission mode, the terminal obtains available time-frequency resources through a sensing mechanism. An important step of sensing includes: decoding all SA control messages on frequency domain resources used for side transmission in a period of time in history to obtain time-frequency resource information occupied and reserved by other terminals, so as to select time-frequency resources by themselves When sending data, you can avoid these occupied and reserved time-frequency resources to avoid data transmission failures caused by resource conflicts. NR mode-2 in the new radio (NR) includes: self-selected transmission resource transmission based on sensing, auxiliary resource selection, pre-configured scheduling-free transmission, and transmission scheduled by other users.

Referring to FIG. 1, in the case where the terminal selects the side resource by itself, there is a hidden terminal problem because there is no unified resource scheduling mechanism. Hidden terminals can be in several situations as shown in Figure 1. Terminal 2 and terminal 3 are within the coverage of the base station, and the base station schedules side transmission, and other terminals 1, 4, 4, 5 and 6 are outside the coverage of the base station. , You can use NR mode-2 mode for side transmission. If terminal 1 and terminal 3 cannot receive the side information sent by each other, if the terminal is within the coverage of the base station (for example, terminal 3), the side resources selected by itself or the side resources allocated by the base station to terminal 3 1 is the same as the side resource 1 selected by the terminal that is not within the coverage of the base station (for example, terminal 1). If terminal 3 and terminal 1 send side information to terminal 2 at the same time in side resource 1, the problem of hiding the terminal is formed. Similarly, if terminal 3 and terminal 5 cannot receive the side information sent by each other, or terminal 4 and terminal 6 cannot receive the side information sent by the other, then terminal 1 and terminal 3, terminal 3 and terminal 5, terminal 4 and terminal 6 form a hidden terminal.

Hiding the terminal will cause at least the following problems:

(1) HARQ feedback problem: take terminal 1 and terminal 3 as a pair of hidden terminals as an example to illustrate. Since terminal 1 is outside the coverage of the base station, resource scheduling cannot be performed by the base station. In this case, if terminal 1 and terminal 3 both send Terminal 2 sends data on the side resources. If the side resource selected by terminal 1 is the same as the side resource scheduled by the base station for terminal 3, due to resource collision, terminal 1 sends data 2 to terminal 2, and terminal 3 may send data to terminal 1 as follows:

Scenario 1). Since the data sent by terminal 1 and terminal 3 to terminal 2 constitute strong interference with each other, they may not be solved on the terminal 2 side.

Scenario 2), it may also be due to the different communication distance between the terminals. For example, terminal 3 is closer to terminal 2 than terminal 1, then terminal 2 can correctly decode the data 1 sent by terminal 3, but terminal 2 does not correctly decode terminal 1. Data sent 2.

For scenario 2), as shown in FIG. 4, if terminal 2 correctly decodes data 1 sent by terminal 3, it is necessary to feed back ACK to terminal 3, because the feedback information usually adopts a more robust modulation and coding mode, and feedback information Does not hide the terminal problem, so the ACK sent by terminal 2 will be received by terminal 1 and terminal 3 at the same time. Both terminal 1 and terminal 3 think that the last transmission is correct, but in fact, the data 2 sent by terminal 1 fails Too. This situation is unavoidable in NR mode-2, and it will become very serious with the increase of communication equipment or the increase of service volume, which will have a serious impact on some services with high reliability requirements.

It should be understood that the feedback information can usually be sent on the feedback channel. Exemplarily, the feedback channel may be a physical sidelink feedback channel (physical sidelink feedback channel, PSFCH) or a physical sidelink control channel (physical sidelink control channel, PSCCH).

Side data can be sent on the data channel. Exemplarily, the data channel may be a physical sidelink shared channel (physical sidelink shared channel, PSSCH).

(2) Measurement reporting problem: if terminal 1 and terminal 3 use the same side resource to transmit feedback information, if terminal 2 performs measurement feedback on the channel of terminal 1, if terminal 3 receives the measurement of terminal 2 on terminal 1 Feedback, because terminal 3 does not know that the feedback information is for the channel between terminal 1 and terminal 2, it will use incorrect measurement feedback for resource selection, modulation and coding selection, MIMO selection, etc., causing transmission errors.

In summary, the embodiments of the present application provide an information sending method. The sender (for example, the first terminal) carries the feedback information and the identifier of the receiver (for example, the second terminal) in the first information, so that the receiver receives When receiving the first information, you can determine whether the feedback information is transmitted to yourself according to the identifier of the receiver carried in the first information. Specifically, if the identifier of the receiver and the identifier of the receiver carried in the first information are the same, the receiver determines that the feedback information is transmitted to itself.

The embodiments of the present application can be applied to the unicast and multicast transmission of the side link between the vehicle and the vehicle/person/infrastructure in the IoV scenario, which is mainly used in a scenario where a terminal uses NR mode-2 transmission, including: All communication equipment uses NR mode-2 mode transmission. Or as shown in FIG. 5, some terminals use NR mode-2 mode for transmission, and some terminals use NR mode-1 mode for transmission, while NR mode-1 and NR mode-2 modes transmit a shared time-frequency resource scenario.

It should be understood that in FIGS. 1, 2, 4 and 5, only two terminals are taken as an example.

In an embodiment of the present application, an execution body of an information sending method may be a first terminal or a chip applied in the first terminal, and an execution body of an information receiving method may be a second terminal or may be applied to The chip in the second terminal. The following embodiments take an example in which an execution subject of an information transmission method is a first terminal and an execution subject of an information reception method is a second terminal.

As shown in FIG. 6, FIG. 6 shows a schematic diagram of the interaction between an information sending method and a receiving method provided by an embodiment of the present application. The method includes:

Step 101: The first terminal generates feedback information for the second terminal.

Exemplarily, the feedback information in the embodiment of the present application is one or more of the following information: confirmation information, channel state information, and information used for effective transmission by the second terminal. The confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received. The channel state information is used to indicate the channel parameters acquired by the first terminal and the second terminal.

Exemplarily, the information used for effective transmission by the second terminal includes one or more of the following information: interference information, available transmission resource information, and movement speed information.

It should be understood that the feedback information includes confirmation information, channel state information, and one or more of the information used for effective transmission by the second terminal. There may be any one of the following cases (1) to (7):

In case (1), the feedback information includes confirmation information. Case (2), the feedback information includes: channel state information. Case (3), the feedback information includes: information used for effective transmission by the second terminal. Case (4) The feedback information includes confirmation information and channel state information. Case (5), the feedback information includes confirmation information and information used for effective transmission by the second terminal. Case (6), the feedback information includes channel state information and information used for effective transmission by the second terminal. Case (7), the feedback information includes channel state information, confirmation information, and information used for effective transmission by the second terminal.

Exemplarily, channel status information (channel status information, CSI) may include one or more of the following information: channel quality information (channel quality indicator, CQI), precoding matrix indication (precoding matrix indication, PMI), rank Indication (rank), reference signal received power (reference signal received power (RSRP), received signal strength indication (received signal strength indicator) RSSI (RSSI), reference signal reception quality (reference signal received quality (RSRQ), detection reference Signal resource indicator (sounding reference signal indicator, SRI), channel state information refer to signal resource indicator (Channel status information-reference signal resource indicator, CRI) and other information to identify channel status.

It should be understood that, if the feedback information includes confirmation information, before step 101, it may further include: the second terminal sends side information to the first terminal on the first transmission link. The first terminal determines whether the side information is correctly received.

When the feedback information includes confirmation information, if the side information is correctly received, the confirmation information is used to indicate that the side information is correctly received. If the side information is not received correctly, the confirmation information is used to indicate that the side information is not received correctly.

In another implementation manner, if the side information is correctly received, the feedback information includes confirmation information, which is used to indicate that the side information is correctly received. If the side information is not received correctly, the feedback information does not include confirmation information, that is, the first terminal does not feedback the confirmation information.

In another implementation manner, if the side information is correctly received, the feedback information does not include confirmation information, that is, the first terminal does not feedback the confirmation information. If the side information is not received correctly, the feedback information includes confirmation information, that is, feedback confirmation information, which is used to indicate that the side information is not received correctly.

Exemplarily, the confirmation information may be a hybrid automatic repeat request (HARQ) feedback made by the first terminal for the side information sent by the second terminal. For example, if the first terminal correctly receives the side information sent by the second terminal on the first transmission link, the confirmation information may be an acknowledgment (ACK). For example, if the first terminal does not correctly receive the side information sent by the second terminal on the first transmission link, the confirmation information may be a negative acknowledgement (Negative Acknowledgement, NACK).

For example, taking the side information as a data packet as an example, if the first terminal feeds back a data packet, the confirmation information includes a 1-bit ACK or NACK. For example, 1 means ACK and 0 means NACK. If it is received correctly, the confirmation message is "1". If the first terminal feeds back multiple data packets, it can arrange the feedback bits in cascade, such as feedback of the reception of 2 data packets, 00 means that NACK is fed back to both data packets, and 10 means that the first data packet returns ACK. , The second data packet feeds back NACK, and so on, no more details.

It should be understood that when the feedback information is channel state information, the method provided in this embodiment of the present application further includes: the first terminal measures the channel parameter between the second terminal and the second terminal.

It should be understood that the method provided by the embodiment of the present application further includes: the first terminal measures interference information, available transmission resource information, and movement speed information.

Step 102: The first terminal generates first information according to the feedback information and the identifier of the second terminal.

Exemplarily, the identifier of the second terminal may be a radio network temporary identifier (RNTI) configured by the network, or an international mobile subscriber identity (IMSI), SAE temporary mobile subscriber identifier (SAE) Temporary Mobile Subscriber Identity, S-TMSI), MME Temporary Mobile Subscriber Identity (MME), Mobile International Subscriber Identity, M-TMSI, International Mobile Equipment Identity (International) mobile Subscriber Identity, IMSI, Globally Unique Temporary Identifier , GUTI), IP address, etc. used to identify the user in the network one of the logo or a combination of multiple logos.

Exemplarily, the identifier of the second terminal may also be a user terminal index (UE index), a link index (link index), etc. that communicate with the first terminal, and are used to uniquely identify the user communicating with the first terminal in the network Logo.

Exemplarily, the first information is used to indicate that the feedback information is for the second terminal.

Step 103: The first terminal sends the first information to the second terminal.

Exemplarily, the first terminal may send the first information to the second terminal on the side link with the second terminal. Specifically, the first terminal may send the first information to the second terminal on the sidelink resource on the sidelink, and the sidelink between the first terminal and the second terminal is the first transmission link.

The sidelink resource may be allocated for the first terminal by the base station accessed by the first terminal, or may be selected by the first terminal by itself, which is not limited in this embodiment of the present application.

Step 104: The second terminal receives the first information from the first terminal.

Exemplarily, the second terminal may receive the first information from the first terminal on the side link with the first terminal.

Exemplarily, the second terminal may receive the first information on the sidelink resource of the side link.

Step 105: The second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.

It should be understood that when the first terminal sends the first information, the first information may be received by other terminals than the second terminal. At this time, the other terminal may determine that the feedback information is not transmitted to itself according to the identifier of the second terminal.

Specifically, if the feedback information is confirmation information, the second terminal may determine whether the side information sent to the first terminal is correctly received by the first terminal.

If the feedback information is CSI, the second terminal may perform resource selection, modulation and coding selection, and multiple-input (Multiple-Input, Multiple-Output, MIMO) selection according to the CSI.

An embodiment of the present application provides an information sending method, which generates first information having feedback information and identification information of a second terminal through a first terminal, and sends the first information to the second terminal. In this way, when the second terminal receives the first information, it can determine whether the feedback information in the first information is transmitted to the second terminal according to the criteria of the second terminal in the first information. In addition, in the case where the terminal can select the side resource by itself, if the side resource selected by the other terminal and the transmission resource for communication between the first terminal and the second terminal are the same, the other terminal may determine that the feedback information is not Send to other terminals. In this way, when determining that the feedback information is not sent to itself, other terminals may not parse the feedback information. On the other hand, it can avoid misjudgment caused by other terminals mistakenly thinking that the feedback information is sent to themselves. Therefore, the reliability of the side link transmission can be improved.

The above embodiment mainly describes the process of the first terminal sending the first information. The following will mainly describe the specific content of the first information, that is, how the first information indicates the second terminal to which the feedback information is transmitted.

Example 1, the first information display indicates the second terminal.

In this example 1, step 102 may specifically be implemented in the following manner: the first terminal generates first information, and the first information includes feedback information and an identifier of the second terminal.

Optionally, the number of feedback information bits in this example 1 is less than or equal to N, where N is a positive integer.

In this embodiment of the present application, the identifier of the second terminal is used to identify the second terminal. The identifier of the second terminal may be the identifier of the second terminal (that is, the identifiers of all the second terminals), or may be the identifiers of some second terminals.

For example, if the 16-bit RNTI is used to identify the second terminal, all the second terminal identifiers include 16 bits. Taking some second terminal identifiers including 8 bits as an example, some second terminal identifiers can take the first 8 of 16 bits. The bits or the last 8 bits, or any other 8 bits included in the 16 bits, are not limited here.

Exemplarily, taking N=16 and the number of bits included in the feedback information as B as an example, when the size of the feedback message satisfies B≤K bits, the identifier of the second terminal is directly added to the feedback information header to form The first message. As shown in Figure 6. It should be understood that FIG. 6 takes the feedback information including confirmation information, CSI, and information used for effective transmission by the second terminal as an example.

Optionally, in the embodiment of the present application, the first terminal may also determine whether to verify the first information according to the obtained number of bits of the first information. For example, taking the number of bits of the first information obtained in FIG. 7 as C as an example, if the first terminal determines that the number of bits of the first information C≦M, the first terminal does not check the first information (for example, cyclic redundancy Check (Cyclic Redundancy Check, CRC check). If the number C of bits of the first information is greater than or equal to (M+1), the first terminal checks the first information.

Specifically, when the first terminal checks the first information, the length of the check code when checking the first information may be selected according to the number of bits of the first information. For example, if the number C of bits of the first information satisfies: (M+1)≤C≤L, then when the first terminal checks the first information, the first terminal uses the first cycle generating polynomial (the The length is L1) The first check code of the first information is generated, and the length of the first check code of the first information is L1. If the number C of bits of the first information satisfies: C ≥ (L+1), then the first terminal uses the second cycle generating polynomial when the first terminal checks the first information (the length of the second cycle generating polynomial is L2) The first check code of the feedback information is generated, and the length of the second check code of the first information is L2. Among them, L1<L2.

In the embodiments of the present application, K, L2, L1, M, and L are positive integers. The embodiments of the present application do not limit the values of K, L2, L1, M, and L.

Exemplarily, K=11, M=11, L=19, L1=6, L2=11, and the units are all bits.

As shown in FIG. 8, in FIG. 8, taking 12≦C≦19 and taking the CRC check of the first information as an example to obtain a CRC check code, the length of the CRC check code of the first information is 6 bits.

As shown in FIG. 9, FIG. 9 takes C≧20 and takes the CRC check on the first information as an example to obtain the CRC check code, and the length of the CRC check code of the first information is 11 bits.

In Example 1, before step 105, the method provided by the embodiment of the present application further includes:

The second terminal determines that the first information includes the identifier of the second terminal.

Exemplarily, the second terminal may parse the first information to obtain feedback information and the identification of the second terminal.

At this time, step 105 may be specifically implemented in the following manner: the second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.

Specifically, the second terminal determines the identifier of the second terminal carried in the first information, and the second terminal determines that the feedback information is for the second terminal.

Example 2: The first information implicitly indicates the second terminal.

In Example 2, step 102 may be specifically implemented in the following manner: the first terminal generates first information, and the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.

Specifically, step 102 may be implemented in the following manner: The first terminal generates a check code according to the feedback information. The first terminal scrambles the check code using the identifier of the second terminal to obtain the check code scrambled using the identifier of the second terminal. The first terminal generates the first information according to the feedback information and the check code scrambled using the identifier of the second terminal.

Exemplarily, the first terminal generating the check code according to the feedback information includes: the first terminal uses CRC to check the feedback information to generate the check code.

Exemplarily, the first terminal according to the feedback information and the check code scrambled using the identifier of the second terminal includes: the first terminal processes (eg, encodes) the feedback information and the check code scrambled using the identifier of the second terminal To generate the first message.

Exemplarily, in Example 2, the number of bits of feedback information is greater than or equal to N+1. The number of bits of the identifier of the second terminal is the same as the number of bits of the CRC check code.

Due to the difference in the size of the feedback information, the length of the CRC check code when the first terminal uses the CRC to check the feedback information is different, and the length of the second terminal's ID when the first terminal uses the identifier of the second terminal to scramble the check code is also different , Therefore, the following will be introduced separately:

An example, when the size of the feedback message B satisfies (M+1)≤B≤L, the first terminal uses a third loop generator polynomial (the length of the third loop generator polynomial is L3) to generate a third check of the feedback information Code, and then the identifier of the second terminal of length L3 scrambles the third check code.

Exemplarily, as shown in FIG. 10, when the size of the feedback message B satisfies 12≤B≤19 bits, the first terminal uses a CRC check bit with a length of 6 (for example, L3=6) bits to generate the first Three check codes, and then perform a CRC scrambling on the third check code with the 6-bit second terminal identification.

Another example, when the size of the feedback message B satisfies B≥(L+1), the first terminal uses a fourth loop generator polynomial (the length of the fourth loop generator polynomial is L4) to generate the fourth check code of the feedback information , And then scramble the fourth check code using the identifier of the second terminal of length L4. The length of the third check code sequence is shorter than the length of the fourth check code sequence.

Exemplarily, as shown in FIG. 11, when the size of the feedback message satisfies B≥20, the first terminal adds 11 (for example, L4=11) CRC check bits to the feedback message to obtain a fourth check code, Then, the fourth check code is scrambled with the CRC of the 11-bit second terminal identifier.

Optionally, before step 105 provided by the embodiment of the present application, the method provided by the embodiment of the present application further includes: the second terminal uses the identifier of the second terminal to descramble the check code in the first information.

At this time, step 105 in the embodiment of the present application may be specifically implemented in the following manner: the second terminal uses the identifier of the second terminal to descramble the check code in the first information correctly, and then it is determined that the feedback information is directed to the second terminal.

It should be understood that the first information includes the feedback information and the check code scrambled using the identifier of the second terminal. Therefore, if other terminals receive the first information, they will use their respective terminal identifiers to descramble the first information, However, other terminals cannot correctly descramble the first information, and therefore cannot obtain feedback information. In this case, only the terminal that descrambles the first information correctly can determine that the feedback information is for itself.

The above mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that each network element, such as the first terminal and the second terminal. In order to realize the above-mentioned functions, it includes hardware structures and/or software modules corresponding to performing each function. Those skilled in the art should easily realize that, in conjunction with the exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application may divide the first terminal and the second terminal according to the above method examples, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module in. The above integrated modules may be implemented in the form of hardware or software function modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a division of logical functions. In actual implementation, there may be another division manner. The following uses the corresponding function to divide each function module as an example:

The method of the embodiment of the present application has been described above with reference to FIG. 6, and the information sending apparatus and the information receiving apparatus for performing the above method provided by the embodiment of the present application will be described below. Those skilled in the art can understand that the methods and apparatuses can be combined and referenced with each other. The information sending apparatus provided in the embodiments of the present application can perform the above information sending, that is, the steps performed by the first terminal and the information receiving apparatus can perform the above embodiments The information receiving method, that is, the steps performed by the second terminal.

It should be pointed out that the embodiments of this application can be used for mutual reference or reference, for example, the same or similar steps, method embodiments and device embodiments can be referred to each other without limitation.

As shown in FIG. 12, it is a schematic structural diagram of a terminal provided by an embodiment of the present application. The structure of the first terminal and the second terminal can refer to the structure shown in FIG. 12.

The terminal includes at least one processor 1211 and at least one transceiver 1212.

Optionally, the terminal may further include at least one memory 1213. The processor 1211, the memory 1213 and the transceiver 1212 are connected.

Optionally, the terminal 121 may further include an output device 1214, an input device 1215, and one or more antennas 1216. The antenna 1216 is connected to the transceiver 1212, and the output device 1214 and the input device 1215 are connected to the processor 1211.

The processor 1211 may be a baseband processor or a CPU, and the baseband processor and the CPU may be integrated together or separated.

The processor 1211 may be used to implement various functions for the terminal, for example, for processing communication protocols and communication data, or for controlling the entire terminal device, executing software programs, processing software program data; or for assisting completion Calculation processing tasks, such as graphics and image processing or audio processing; or the processor 1211 is used to implement one or more of the above functions

The output device 1214 communicates with the processor 1211 and can display information in various ways. For example, the output device 1214 may be a liquid crystal display (Liquid Crystal Display, LCD), a light emitting diode (Light Emitting Diode, LED) display device, a cathode ray tube (Cathode Ray Tube, CRT) display device, or a projector (projector) Wait. The input device 1215 communicates with the processor 1211 and can accept user input in a variety of ways. For example, the input device 1215 may be a mouse, keyboard, touch screen device, or sensor device.

The processor in the embodiment of the present application, for example, the processor 1211, may include at least one of the following types: general-purpose central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processor, DSP), microprocessor, Application-specific integrated circuit (ASIC), microcontroller (Microcontroller Unit, MCU), field programmable gate array (Field Programmable Gate Array, FPGA), or integrated circuit for implementing logic operations . For example, the processor 1211 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. At least one processor 1211 may be integrated in one chip or located on multiple different chips.

The memory in the embodiment of the present application, for example, the memory 1213, may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, and random access memory (random access memory, RAM) or other types of dynamic storage devices that can store information and instructions can also be electrically erasable programmable read-only memory (Electrically, programmable-only memory, EEPROM). In some scenarios, the memory may also be a compact disc-read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.) , Disk storage media or other magnetic storage devices, or any other media that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

The memory 1213 may exist independently and be connected to the processor 1211. Optionally, the memory 1213 may also be integrated with the processor 1211, for example, integrated in a chip. The memory 1213 can store program codes for executing the technical solutions of the embodiments of the present application, and is controlled and executed by the processor 1211. Various executed computer program codes can also be regarded as a driver of the processor 1211. For example, the processor 1211 is used to execute the computer program code stored in the memory 1213, so as to implement the technical solution in the embodiments of the present application.

The transceiver 1212 may be used to support the reception or transmission of radio frequency signals between the first terminal and the base station or between the first terminal and the second terminal. The transceiver 1212 may be connected to the antenna 1216. The transceiver 1212 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1216 can receive radio frequency signals, and the receiver Rx of the transceiver 1212 is used to receive the radio frequency signals from the antenna, and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital The baseband signal or digital intermediate frequency signal is provided to the processor 1211, so that the processor 1211 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transmitter Tx in the transceiver 1212 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 1211, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass a Or multiple antennas 1216 transmit the radio frequency signal. Specifically, the receiver Rx can selectively perform one-level or multi-level down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal. The sequence is adjustable. The transmitter Tx can selectively perform one-level or multi-level up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal. The up-mixing processing and digital-to-analog conversion processing The sequence is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.

An example, for example, the method executed by the first terminal in the embodiment of the present application, the first terminal may be executed by the structure shown in FIG. 12, wherein the actions sent or received by the first terminal may be performed by the processor of the first terminal 1211 is completed by the antenna 1216. The actions of determining or processing the first terminal may be completed by the processor 1211 of the first terminal. For example, the processor 1211 of the first terminal may support the first terminal to generate feedback information for the second terminal, and generate the first information according to the feedback information and the identifier of the second terminal. For example, the processor 1211 of the first terminal sends the first information to the second terminal through the antenna 1216.

Specifically, for the specific content of the feedback information, reference may be made to the description in the foregoing embodiment, and details are not described herein again.

In a possible implementation manner, the processor 1211 of the first terminal may support the first terminal to generate first information, and the first information includes feedback information and an identifier of the second terminal.

In another possible implementation manner, the processor 1211 of the first terminal may support the first terminal to generate first information, and the first information includes feedback information and a check code scrambled by using the identifier of the second terminal.

Specifically, the processor 1211 of the first terminal may support the first terminal to generate a check code according to the feedback information. And the processor 1211 of the first terminal may support the first terminal to scramble the check code by using the identifier of the second terminal to obtain the check code scrambled by using the identifier of the second terminal. The processor 1211 of the first terminal may support the first terminal to generate the first information according to the feedback information and the check code scrambled by the identifier of the second terminal.

Another example, for example, the method executed by the second terminal in the embodiment of the present application, the second terminal may be executed by the structure shown in FIG. 12, wherein the actions sent or received by the second terminal may be processed by the second terminal The device 1211 is completed through the antenna 1216, and the actions such as the determination or processing by the second terminal may be performed by the processor 1211 of the second terminal. For example, the processor 1211 of the second terminal may receive the first information from the first terminal through the antenna 1216. The processor 1211 of the second terminal may support the second terminal to determine that the feedback information is for the second terminal according to the identifier of the second terminal.

In addition, in the embodiments of the present application, each step in the method performed by the first terminal or the second terminal, there are units or modules in the first terminal or the second terminal that perform each step of the method; executed by the first terminal For each step in the method, there is a unit or module in the first terminal that performs each step in the method; for each step in the method performed by the second terminal, there is a step in the second terminal that performs each step in the method Unit or module.

The following uses the corresponding function to divide each function module as an example:

As shown in FIG. 13, FIG. 13 shows a schematic structural diagram of an information sending device provided by an embodiment of the present application. The information sending device may be the first terminal in the embodiment of the present application, or may be applied to the first terminal. chip.

The information sending device includes a processing unit 201 and a sending unit 202. The processing unit 201 is used to generate feedback information for the second terminal, and to generate first information according to the feedback information and the identifier of the second terminal. The sending unit 202 is configured to send the first information to the second terminal.

When the processing unit 201 and the sending unit 202 perform the above process, for the specific process involved, reference may be made to the relevant descriptions at steps 101 to 103 in the foregoing method embodiment, and details are not described herein again.

Optionally, the information sending device may further include a storage unit for storing signaling or data or computer program code.

Based on hardware implementation, the sending unit 202 in this application may be a first terminal or a transmitter applied to a chip in the first terminal, and the transmitter may generally be used in conjunction with a receiver of the first terminal or applied to the first The receiver of the chip in the terminal is integrated together to be used as a transceiver. The specific transceiver may also be called a communication interface or a transceiver circuit. The processing unit 201 may be integrated in the first terminal or a processor applied to the chip in the first terminal on.

In the case of using an integrated unit, FIG. 14 shows a schematic diagram of a possible logical structure of the information sending device involved in the above embodiment. The information sending device may be a first terminal or a chip applied in the first terminal. The information sending device includes: a processing module 112 and a communication module 113.

Among them, the processing module 112 is used to control and manage the operation of the information sending device, for example, the processing module 112 is used to perform the steps of message or data processing on the side of the information sending device, for example, to support the information sending device to execute the Step 101 and step 102. The communication module 113 is used to support the information sending device to execute step 103 in the above embodiment. And/or other processes performed by the information sending device for the techniques described herein.

Optionally, the information sending device may further include a storage module 111 for storing program codes and data of the information sending device.

The processing module 112 may be a processor or a controller, for example, it may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on. The communication module 113 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 111 may be a memory.

When the processing module 112 is the processor 1211, the communication module 113 is the communication interface or the transceiver 1212, and the storage module 111 is the memory 1213, the information sending device involved in the present application may be the device shown in FIG.

As shown in FIG. 15, FIG. 15 shows a schematic structural diagram of an information receiving apparatus provided by an embodiment of the present application. The information receiving apparatus may be the second terminal in the embodiment of the present application, or may be applied to the second terminal. chip.

The information receiving device includes a receiving unit 301 and a processing unit 302. The receiving unit 301 is used to receive the first information from the first terminal. The processing unit 302 is configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.

When the receiving unit 301 and the processing unit 302 perform the above process, for the specific process involved, reference may be made to the relevant descriptions at steps 104 to 105 in the foregoing method embodiment, and details are not described herein again.

Optionally, the information receiving apparatus may further include a storage unit for storing signaling or data or computer program code.

Based on hardware implementation, the receiving unit 301 in this application may be a second terminal or a receiver applied to a chip in the second terminal, and the receiver may generally be used in conjunction with the receiver of the second terminal or the second terminal. The transmitter of the chip in the terminal is integrated together to be used as a transceiver. The specific transceiver may also be called a communication interface or a transceiver circuit. The processing unit 302 may be integrated in the second terminal or a processor applied to the chip in the second terminal on.

In the case of using an integrated unit, FIG. 16 shows a schematic diagram of a possible logical structure of the information receiving device involved in the above embodiment. The information receiving device may be a second terminal or a chip applied in the second terminal. The information receiving device includes: a processing module 212 and a communication module 213.

Among them, the processing module 212 is used to control and manage the operation of the information receiving device, for example, the processing module 212 is used to perform the steps of performing message or data processing on the information receiving device side, for example, to support the information receiving device to execute the Step 105. The communication module 213 is used to support the information receiving apparatus to execute step 104 in the above embodiment. And/or other processes performed by the information receiving device for the techniques described herein. Optionally, the information receiving device may further include a storage module 211 for storing program codes and data of the information receiving device.

The processing module 212 may be a processor or a controller, for example, it may be a central processor unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a digital signal processor and a microprocessor, and so on. The communication module 213 may be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 211 may be a memory.

When the processing module 212 is the processor 1211, the communication module 213 is the communication interface or transceiver 1212, and the storage module 211 is the memory 1213, the information receiving apparatus involved in the present application may be the device shown in FIG.

It should be understood that the division of the units in the above information sending apparatus and information receiving apparatus is only a division of logical functions, and in actual implementation, it may be fully or partially integrated into one physical entity or may be physically separated. Moreover, the units in the device can be implemented in the form of software calling through processing elements; they can also be implemented in the form of hardware; some units can also be implemented in software through processing elements, and some units can be implemented in hardware. For example, each unit can be a separate processing element, or it can be integrated in a chip of the device. In addition, it can also be stored in the memory in the form of a program, which is called and executed by a processing element of the device. Features. In addition, all or part of these units can be integrated together or can be implemented independently. The processing element described here may be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in a processor element or in the form of software invoking through a processing element.

In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (Application Specific Integrated Circuit, ASIC), or, one or Multiple microprocessors (digital processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc. As another example, when the unit in the device can be implemented in the form of a processing element scheduling program, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. As another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The above receiving unit (or unit for receiving) is a communication interface or communication interface of the device, which is used to receive signals from other devices. For example, when the device is implemented as a chip, the receiving unit is a communication interface or communication interface that the chip uses to receive signals from other chips or devices. The above sending unit (or unit for sending) is a communication interface of the device, which is used to send signals to other devices. For example, when the device is implemented as a chip, the sending unit is a communication interface or communication interface used by the chip to send signals to other chips or devices.

FIG. 17 is a schematic structural diagram of a chip 150 provided by an embodiment of the present invention. The chip 150 includes at least one processor 1510 and a communication interface 1530.

Optionally, the chip 150 further includes a memory 1540. The memory 1540 may include a read-only memory and a random access memory, and provide operation instructions and data to the processor 1510. A part of the memory 1540 may further include non-volatile random access memory (non-volatile random access memory, NVRAM).

In some embodiments, the memory 1540 stores the following elements, executable modules or data structures, or their subsets, or their extensions:

In the embodiment of the present invention, the corresponding operation is performed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).

One possible implementation manner is that the structures of the chips used by the first terminal and the second terminal are similar, and different devices may use different chips to achieve their respective functions.

The processor 1510 controls operations of the first terminal and the second terminal, and the processor 1510 may also be referred to as a CPU (central processing unit). The memory 1540 may include a read-only memory and a random access memory, and provide instructions and data to the processor 1510. A portion of the memory 1540 may also include non-volatile random access memory (NVRAM). In a specific application, the memory 1540, the communication interface 1530, and the memory 1540 are coupled together through a bus system 1520. In addition to the data bus, the bus system 1520 may also include a power bus, a control bus, and a status signal bus. However, for clarity, various buses are marked as the bus system 1520 in FIG. 17.

The information sending method or information receiving method disclosed in the above embodiments of the present invention may be applied to the processor 1510 or implemented by the processor 1510. The processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the above steps of the information sending method or the information receiving method may be completed by instructions in the form of hardware integrated logic circuits or software in the processor 1510. The aforementioned processor 1510 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps, and logical block diagrams in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the above method in combination with its hardware.

Optionally, the communication interface 1530 is used to perform the steps of receiving and sending the first terminal and the second terminal in the embodiment shown in FIG. 6.

The processor 1510 is used to execute the steps of the processing of the first terminal and the second terminal in the embodiment shown in FIG. 6.

In the above embodiments, the instructions stored in the memory for execution by the processor may be implemented in the form of computer program products. The computer program product may be written in the memory in advance, or may be downloaded in the form of software and installed in the memory.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server, or data center by wire (e.g. Coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center. The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server, a data center, or the like that includes one or more available medium integration. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk, SSD), or the like.

In one aspect, a computer storage medium is provided, in which instructions are stored in a computer-readable storage medium, and when the instructions are executed, the first terminal or the chip applied in the first terminal executes steps 101, 102 and Step 103. And/or other processes for the techniques described herein that are performed by the first terminal or a chip applied in the first terminal. The foregoing readable storage medium may include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

In another aspect, a computer storage medium is provided, in which instructions are stored in a computer-readable storage medium, and when the instructions are executed, the second terminal or the chip applied in the second terminal executes steps 104 and 105 in the embodiment . And/or other processes for the techniques described herein that are performed by the second terminal or a chip applied in the second terminal.

On the one hand, a computer program product containing instructions is provided. The computer program product stores instructions, and when the instructions are executed, the first terminal or the chip applied in the first terminal executes steps 101 and 102 in the embodiment和步骤103。 And step 103. And/or other processes for the techniques described herein that are performed by the first terminal or a chip applied in the first terminal.

In still another aspect, a computer program product containing instructions is provided. The computer program product stores instructions. When the instructions are executed, the second terminal or the chip applied in the second terminal executes steps 104 and 104 in the embodiment. 105. And/or other processes for the techniques described herein that are performed by the second terminal or a chip applied in the second terminal.

In one aspect, a chip is provided. The chip is applied to a first terminal. The chip includes at least one processor and a communication interface. The communication interface and at least one processor are interconnected by a line. The processor is used to execute instructions to execute the embodiments. Step 101, Step 102 and Step 103. And/or other processes performed by the first terminal for the techniques described herein.

In another aspect, a chip is provided. The chip is applied to a network device. The chip includes at least one processor and a communication interface. The communication interface and at least one processor are interconnected by a line. The processor is used to execute instructions to execute the implementation in the embodiments Step 104 and step S105 in the example. And/or other processes performed by the second terminal for the techniques described herein.

In yet another aspect, the present application provides a communication system including: a first terminal using the structure shown in FIG. 12 and a second terminal using the structure shown in FIG. 12.

In yet another aspect, the present application provides a communication system including: a first terminal using the structure shown in FIG. 13 and a second terminal using the structure shown in FIG. 15.

In yet another aspect, the present application provides a communication system including: a first terminal using the structure shown in FIG. 14 and a second terminal using the structure shown in FIG. 16.

Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

An information sending method, characterized in that it includes:

The first terminal generates feedback information for the second terminal;

The first terminal generates first information according to the feedback information and the identifier of the second terminal;

The first terminal sends the first information to the second terminal.
The method according to claim 1, wherein the first terminal generating the first information according to the feedback information and the identifier of the second terminal includes:

The first terminal generates the first information, and the first information includes the feedback information and the identifier of the second terminal.
The method according to claim 2, wherein the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
The method according to claim 1, wherein the first terminal generating the first information according to the feedback information and the identifier of the second terminal includes:

The first terminal generates the first information, and the first information includes the feedback information and a check code that is scrambled using the identifier of the second terminal.
The method according to claim 1 or 4, wherein the first terminal generating the first information according to the feedback information and the identifier of the second terminal includes:

The first terminal generates a check code according to the feedback information;

The first terminal scrambles the check code using the identifier of the second terminal to obtain a check code scrambled using the identifier of the second terminal;

The first terminal generates the first information according to the feedback information and the check code scrambled using the identifier of the second terminal.
The method according to claim 5, wherein the number of bits of the feedback information is greater than or equal to N+1.
The method according to claim 5 or 6, wherein the number of bits of the identification of the second terminal is the same as the number of bits of the check code.
The method according to any one of claims 1-7, wherein the feedback information is one or more of the following information:

Confirmation information, channel state information, and information for effective transmission by the second terminal;

Wherein, the confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received;

The channel state information is used to indicate the channel parameter between the first terminal and the second terminal.
The method according to claim 8, wherein the information for effective transmission by the second terminal includes one or more of the following information:

Interference information, available transmission resource information, moving speed information.
An information receiving method, characterized in that it includes:

The second terminal receives first information from the first terminal, where the first information is generated based on the feedback information and the identifier of the second terminal;

The second terminal determines that the feedback information is for the second terminal according to the identifier of the second terminal.
The method according to claim 10, wherein the first information includes the feedback information and an identifier of the second terminal.
The method according to claim 10 or 11, wherein before the second terminal determines that the feedback information is directed to the second terminal according to the identifier of the second terminal, the method further comprises :

The second terminal determines that the first information includes the identifier of the second terminal.
The method according to claim 11 or 12, wherein the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
The method according to claim 10, wherein the first information includes the feedback information and a check code scrambled using the identifier of the second terminal.
The method according to claim 10, wherein before the second terminal determines that the feedback information is directed to the second terminal according to the identifier of the second terminal, the method further comprises:

The second terminal uses the identifier of the second terminal to descramble the check code in the first information.
The method according to claim 14 or 15, wherein the number of bits of the feedback information is greater than or equal to N+1.
The method according to any one of claims 13 to 16, wherein the number of bits of the identification of the second terminal is the same as the number of bits of the check code.
The method according to any one of claims 10-17, wherein the feedback information is one or more of the following information:

Confirmation information, channel state information, and information for effective transmission by the second terminal;

Wherein, the confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received;

The channel state information is used to indicate the channel parameter between the first terminal and the second terminal.
The method according to claim 18, wherein the information used for effective transmission by the second terminal includes one or more of the following information:

Interference information, available transmission resource information, moving speed information.
An information sending device, characterized in that the device is a first terminal or a chip applied in the first terminal, and the device includes:

A processing unit, configured to generate feedback information for the second terminal, and to generate first information according to the feedback information and the identifier of the second terminal;

The sending unit is configured to send the first information to the second terminal.
The apparatus according to claim 20, wherein the processing unit is configured to generate first information according to the feedback information and the identifier of the second terminal, specifically including:

The processing unit is specifically configured to generate the first information, and the first information includes the feedback information and the identifier of the second terminal.
The apparatus according to claim 21, wherein the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
The apparatus according to claim 20, wherein the processing unit is configured to generate first information based on the feedback information and the identifier of the second terminal, specifically including: the processing unit is specifically configured to generate The first information, and the first information includes the feedback information and a check code scrambled using the identifier of the second terminal.
The apparatus according to claim 23, wherein the processing unit is specifically configured to generate a check code based on the feedback information, and to scramble the check code using the identifier of the second terminal, Obtaining a check code scrambled using the identification of the second terminal; and generating the first information according to the feedback information and the check code scrambled using the identification of the second terminal.
The apparatus according to claim 24, wherein the number of bits of the feedback information is greater than or equal to N+1.
The apparatus according to claim 24 or 25, wherein the number of bits of the identification of the second terminal is the same as the number of bits of the check code.
The device according to any one of claims 20 to 26, wherein the feedback information is one or more of the following information:

Confirmation information, channel state information, and information for effective transmission by the second terminal;

Wherein, the confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received;

The channel state information is used to indicate the channel parameter between the first terminal and the second terminal.
The apparatus according to claim 27, wherein the information used for effective transmission by the second terminal includes one or more of the following information:

Interference information, available transmission resource information, moving speed information.
An information receiving device, characterized in that the device is a second terminal or a chip applied in the second terminal, and the device includes:

A receiving unit, configured to receive first information from a first terminal, wherein the first information is generated according to feedback information and the identifier of the second terminal;

The processing unit is configured to determine that the feedback information is for the second terminal according to the identifier of the second terminal.
The apparatus according to claim 29, wherein the first information includes the feedback information and an identifier of the second terminal.
The apparatus according to claim 30, wherein the processing unit is specifically configured to determine that the first information includes the identifier of the second terminal.
The apparatus according to claim 30 or 31, wherein the number of bits of the feedback information is less than or equal to N, and N is a positive integer.
The apparatus according to claim 29, wherein the first information includes the feedback information and a check code scrambled by using the identifier of the second terminal.
The apparatus according to claim 33, wherein the processing unit is specifically configured to descramble the check code in the first information using the identifier of the second terminal.
The apparatus according to claim 33 or 34, wherein the number of bits of the feedback information is greater than or equal to N+1.
The apparatus according to any one of claims 30 to 35, wherein the number of bits of the identification of the second terminal is the same as the number of bits of the check code.
The device according to any one of claims 29 to 36, wherein the feedback information is one or more of the following information:

Confirmation information, channel state information, and information for effective transmission by the second terminal;

Wherein, the confirmation information is used to indicate whether the side information acquired by the first terminal from the second terminal is correctly received;

The channel state information is used to indicate the channel parameter between the first terminal and the second terminal.
The apparatus according to claim 37, wherein the information used for effective transmission by the second terminal includes one or more of the following information:

Interference information, available transmission resource information, moving speed information.
A readable storage medium, characterized in that instructions are stored in the readable storage medium, and when the instructions are executed, the method according to any one of claims 1 to 9, or, as claimed The method according to any one of 10-19.