CN111246419A

CN111246419A - Information sending method, receiving method and device

Info

Publication number: CN111246419A
Application number: CN201811434184.7A
Authority: CN
Inventors: 张锦芳; 苏宏家; 向铮铮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-06-05
Also published as: WO2020108043A1

Abstract

The embodiment of the application relates to the technical field of communication, in particular to an information sending method, an information receiving method and an information sending device, and the information sending method, the information receiving method and the information receiving device are used for improving the reliability of information transmission on a sidelink. The scheme comprises the following steps: the first terminal generates feedback information aiming at the second terminal, the first terminal generates first information according to the feedback information and the identifier of the second terminal, and the first terminal sends the first information to the second terminal. This facilitates the second terminal to determine that the feedback information in the first information is transmitted to the second terminal when receiving the first information. In addition, in the case that the terminal can select the sidelink resource by itself, if the sidelink resource selected by itself by the other terminal is the same as the transmission resource for communication between the first terminal and the second terminal, the other terminal may determine that the feedback information is not sent to the other terminal. The misjudgment caused by the fact that other terminals mistakenly think that the feedback information is sent to the terminals can be avoided. Thereby improving the reliability of sidelink transmission.

Description

Information sending method, receiving method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an information sending method, an information receiving method and an information sending device.

Background

The third Generation Partnership Project (3rd Generation Partnership Project, 3GPP) has standardized vehicle-to-all (V2X) communication in Long Term Evolution (LTE) and New Radio (NR) networks, which may also be referred to as fifth Generation (5G) networks. In addition, V2X traffic is introduced in LTE and NR.

Vehicles are interconnected by a V2X communication system, providing intelligent transportation services including Vehicle-to-Vehicle (V2V), Vehicle-to-person (V2P), Vehicle-to-Infrastructure (V2I), and Vehicle-to-Network (V2N). Except that V2N vehicle and network communications use uplink and downlink, the remaining V2V/V2I/V2P data communications use sidelink for communications. Sidelink (SL) is defined for direct communication between a communication device and a communication device, i.e. direct communication between a communication device and a communication device without relaying through a base station.

V2X traffic may typically be sent by terminal a to terminal B using the sidelink resources on the sidelink. The sideline resource can be allocated to the terminal a by the base station to which the terminal a belongs, or can be determined by the terminal a itself. When the terminal can determine the resources in the side row by itself, the problem of resource collision may occur. For example, the sidelink resources selected by any two terminals have the same one or more of time domain, frequency domain, code domain and space domain, or the sidelink resources selected by the terminal 1 and the sidelink resources allocated by the base station for the terminal 2 have the same one or more of time domain, frequency domain, code domain and space domain.

Under the condition that the terminal determines the sidelink resources by itself, if the sidelink resources selected by different terminals have the same time domain, the 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 sidelink communications cannot be satisfied.

Disclosure of Invention

The embodiment of the invention provides an information sending method, an information receiving method and an information sending device, which are used for improving the reliability of information transmission on a sidelink.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

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

The embodiment of the application provides an information sending method, which includes generating first information with feedback information and identification information of a second terminal through a first terminal, and sending the first information to the second terminal. Therefore, when the second terminal receives the first information, whether the feedback information in the first information is transmitted to the second terminal can be determined according to the standard of the second terminal in the first information. In addition, in the case that the terminal can select the sidelink resource by itself, if the sidelink resource selected by itself by another terminal is the same as the transmission resource for communication between the first terminal and the second terminal, the other terminal may be enabled to determine that the feedback information is not sent to the other terminal. Therefore, when other terminals determine that the feedback information is not sent to the other terminals, on one hand, the feedback information is not analyzed, and on the other hand, misjudgment caused by the fact that the other terminals mistakenly assume that the feedback information is sent to the other terminals can be avoided. Thereby improving the reliability of sidelink transmission.

Optionally, the sending, by the first terminal, the first information to the second terminal may specifically be: the first terminal sends the first information to the second terminal over a transmission link with the second terminal.

In a possible implementation manner, the generating, by the first terminal, 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. 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 one possible implementation, the bit number of the feedback information is less than or equal to N, where N is a positive integer. Thus, when the bit number of the feedback information is less than or equal to N, the identifier of the second terminal is carried in the first information carrying the feedback information.

In a possible implementation manner, the generating, by the first terminal, the first information according to the feedback information and the identifier of the second terminal includes: the first terminal generates first information, and the first information includes feedback information and a check code scrambled by an identifier of the second terminal. Therefore, the first information carries the check code scrambled by the identifier of the second terminal, the transmission reliability of the feedback information can be improved, and the feedback information can be implicitly indicated to all terminals receiving the first information and transmitted to the second terminal.

In a possible implementation manner, the generating, by the first terminal, 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 by adopting the identifier of the second terminal to obtain the check code scrambled by adopting the identifier of the second terminal; and the first terminal generates the first information according to the feedback information and the check code scrambled by the identifier of the second terminal. This may implicitly indicate the identity of the second terminal.

In one possible implementation, the bit number of the feedback information is greater than or equal to N + 1. Therefore, when the bit number of the feedback information is greater than or equal to N +1, the second terminal determines that the feedback information is transmitted to the second terminal through a scrambling mode.

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

In one possible implementation, the feedback information is one or more of the following information: acknowledgement information, channel state information, information for efficient transmission by the second terminal; the confirmation information is used for indicating whether the sideline information acquired by the first terminal from the second terminal is correctly received or not; the channel state information is used for indicating channel parameters between the first terminal and the second terminal.

In one possible implementation, the information for the second terminal to perform effective transmission includes one or more of the following information: interference information, available transmission resource information, and moving speed information.

In a second aspect, an embodiment of the present application provides an information receiving method, including: the method comprises the steps that a second terminal receives first information from a first terminal, wherein the first information is generated according to feedback information and an identifier of the second terminal, and the second terminal determines that the feedback information is specific to the second terminal according to the identifier of the second terminal.

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

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

Correspondingly, the determining, by the second terminal, the feedback information as being specific to the second terminal according to the first information includes: and the second terminal feeds back the information aiming at the second terminal according to the identifier of the second terminal.

In one possible implementation, the bit number of the feedback information is less than or equal to N, where N is a positive integer.

In one possible implementation, the first information includes feedback information and a check code scrambled with an identifier of the second terminal.

In a possible implementation manner, before the second terminal determines, according to the identifier of the second terminal, that the feedback information is for the second terminal, the method provided in the embodiment of the present application further includes: and the second terminal descrambles the check code in the first information by adopting the identifier of the second terminal.

In a possible implementation manner, the determining, by the second terminal, the feedback information as being for the second terminal according to the first information includes: and after the second terminal descrambles the check code in the first information by adopting the identifier of the second terminal, determining the feedback information as that of the second terminal.

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

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

In a third aspect, an embodiment of the present application provides an information sending apparatus, which may implement one of the information sending methods described in the first aspect or any one of the possible implementation manners of the first aspect, and therefore may also achieve beneficial effects in any one of the possible implementation manners of the first aspect or the first aspect. The information sending apparatus may be the first terminal, or may be an apparatus that can support the first terminal to implement the first aspect or any one of the possible implementation manners of the first aspect. For example to a chip in the first terminal. The information sending device can realize the method through software, hardware or corresponding software executed by hardware.

An example, the information transmitting apparatus, comprising: and the processing unit is used for generating feedback information aiming at the second terminal and generating first information according to the feedback information and the identifier of the second terminal. And the sending unit is used for sending the first information to the second terminal.

Optionally, the sending unit is specifically configured to send the first information to the second terminal on a 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 an identifier of the second terminal, and specifically includes: and the processing unit is specifically configured to generate first information, where the first information includes the feedback information and an identifier of 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, and specifically includes: the processing unit is specifically configured to generate the first information, where the first information includes the feedback information and a check code scrambled by using an identifier of the second terminal.

In a possible implementation manner, the processing unit is specifically configured to generate a check code according to the feedback information, and configured 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; and generating the first information according to the feedback information and the check code scrambled by the identifier of the second terminal.

In a possible implementation manner, the specific content of the feedback information may refer to the description of the relevant places in the first aspect, and is not described herein again.

As another example, an information sending apparatus provided in an embodiment of the present application may be a first terminal or a chip applied to the first terminal, and includes: a communication interface and one or more processors.

The information transmission apparatus communicates with other devices via the communication interface, and when the one or more processors execute the instructions, an information transmission apparatus performs an information transmission method as described in the above first aspect.

For example, the communication interface is configured to support the information sending apparatus to perform the steps of receiving and sending messages/data on the side of the information sending apparatus described in any one of the possible implementations of the first aspect to the first aspect. The processor is configured to support the information sending apparatus to perform the steps of message/data processing on the side of the information sending apparatus described in any one of the possible implementation manners of the first aspect to the first aspect. For specific corresponding steps, reference may be made to descriptions in any one of possible implementation manners of the first aspect to the first aspect, which are not described herein again.

Optionally, the communication interface of the information transmission apparatus and the processor are coupled to each other.

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

For example, in another example of the third aspect, a processor may be used to replace the processing unit in the example of the third aspect, and a communication interface may be used to replace the sending unit in the example of the third aspect, and specific contents may refer to the description in the third aspect, and are not described herein again.

In a fourth aspect, an embodiment of the present application provides an information receiving apparatus, which can implement one of the information receiving methods described in any possible implementation manner of the second aspect or the second aspect, and therefore can also achieve beneficial effects in any possible implementation manner of the second aspect or 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 to a chip in the second terminal. The information receiving device can realize the method through software, hardware or corresponding software executed by hardware.

An example, an embodiment of the present application provides an information receiving apparatus, including: a receiving unit, configured to receive first information from a first terminal, where the first information is generated according to feedback information and an identifier of the second terminal. And the processing unit is used for determining the feedback information to be specific to the second terminal according to the identifier of the second terminal.

In particular, the receiving unit is specifically configured to receive the first information from the first terminal over a transmission link with the first terminal.

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

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

In a possible implementation manner, the method is specifically configured 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 determining that the check code in the first information is correctly decoded by using the identifier of the second terminal.

As another example, an information receiving apparatus provided in this embodiment of the present application may be a second terminal or a chip applied to the second terminal, and includes: a communication interface and one or more processors.

The information receiving apparatus communicates with other devices through the communication interface, and when one or more processors execute the instructions, a resource adjusting apparatus performs 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 and transmitting messages/data on the side of the information receiving apparatus described in any one of the possible implementations of the second aspect to the second aspect. The processor is configured to support the information receiving apparatus to perform the steps of message/data processing on the side of the information receiving apparatus described in any one of the possible implementation manners of the second aspect to the second aspect. For specific corresponding steps, reference may be made to descriptions in any one of possible implementation manners of the second aspect to the second aspect, and details are not repeated here.

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

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

For example, in another example of the fourth aspect, a processor may be used to replace the processing unit in the example of the fourth aspect, and a communication interface may be used to replace the receiving unit in the example of the fourth aspect, and specific contents may refer to the description in the fourth aspect, and are not described herein again.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform an information sending method described in the first aspect or in various possible implementation manners of the first aspect.

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

In a seventh aspect, the present application provides a computer program product comprising instructions that, when executed on a computer, cause the computer to perform an information sending method as described in the first aspect or in various possible implementations of the first aspect.

In an eighth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform an information receiving method as described in the second aspect or in various possible implementations of the second aspect.

In a ninth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, and the communication interface is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement the first aspect or one of the information sending methods described in various possible implementation manners of the first aspect. The communication interface is used for communicating with other modules outside the chip.

In a tenth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a computer program or instructions to implement one of the information receiving methods described in the second aspect or various possible implementations of the second aspect. The communication interface is used for communicating with other modules outside the chip.

In an eleventh aspect, an embodiment of the present application provides a communication system, including: the third aspect and any one of various possible implementations of the third aspect describe an information sending apparatus, and the fourth aspect and any one of various possible implementations of the fourth aspect describe an information receiving apparatus.

In a twelfth aspect, the present embodiments provide a communication apparatus, which includes one or more modules, configured to implement the methods of the first and second aspects, where the one or more modules may correspond to the steps of the methods of the first and second aspects.

For the beneficial effects of the second aspect to the twelfth aspect and various implementation manners thereof in the present application, reference may be made to beneficial effect analysis in the first aspect and various implementation manners thereof, and details are not described here.

Drawings

Fig. 1 is a first schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a V2X communication system according to an embodiment of the present application;

fig. 3 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 4 is a schematic diagram of data transmission provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a resource scheduling mode according to an embodiment of the present application;

fig. 6 is a schematic flowchart of interaction of an information sending method and a receiving method according to an embodiment of the present application;

fig. 7-11 are schematic structural diagrams of first information provided by an embodiment of the present application;

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

fig. 13 is a first schematic structural diagram of a first terminal according to an embodiment of the present disclosure;

fig. 14 is a second schematic structural diagram of a first terminal according to an embodiment of the present application;

fig. 15 is a first schematic structural diagram of a second terminal according to an embodiment of the present disclosure;

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

fig. 17 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

In the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same or similar items having substantially the same function and action. For example, the first terminal and the second terminal are only used for distinguishing different terminals, and the sequence order thereof is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is noted that, in the present application, words such as "exemplary" or "for example" are used to mean exemplary, illustrative, or descriptive. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

Before describing the embodiments of the present application, first, terms related to the embodiments of the present application are described:

1) sidelink (SL) means: defined for direct communication between a terminal and a terminal, i.e. a link between a terminal and a terminal that communicates directly without relaying through a base station.

2) The sidelink resource refers to: terminal 1 transmits the resource of sidelink information with terminal 2 on the sidelink.

3) The sidelink information is: user data or control information transmitted by any two terminals on the sidelink.

The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems. In the embodiment of the present application, the method provided is applied to an LTE system, an NR system, or a 5G network as an example.

For example, if the sidelink resources for communication between terminals do not have a uniform resource scheduling mechanism, the following problems may occur: as shown in fig. 1, since the terminal 1 is out of the coverage of the base station 10, the base station 10 cannot perform resource scheduling. At this time, if the terminal 1 and the terminal 3 transmit data to the terminal 2 at the same time, if the sideline resource selected by the terminal 1 is the same as the sideline resource allocated to the terminal 3 by the base station 10, the transmission of the terminal 1 and the terminal 3 may not be solved at the terminal 2 due to resource collision, or the terminal 2 may solve the data transmitted by the terminal 3 and the terminal 2 may not solve the data of the terminal 1 due to different communication distances, for example, the terminal 3 is closer to the terminal 2.

Usually, the terminal 2 will feed back ACK to the terminal 3 on the feedback channel, and since the time-frequency resource occupied by the feedback channel corresponds to the sidelink data channel resource, the ACK sent by the terminal 2 will be received by the terminal 1 and the terminal 3 at the same time. If the feedback information is a sequence, e.g. ACK employs sequence 1 and NACK employs sequence 2, it is generated according to the configuration of the transmitting terminal, e.g. the configuration of terminal 3, and/or the identity of terminal 3, respectively. For example, the terminal 2 may generate and transmit a sequence for correct data reception for the terminal 3, so that the terminal 3 may recognize that the data transmitted to the terminal 2 is correctly received, and the terminal 1 may recognize that the data transmitted to the terminal 2 is not correctly received because the terminal 1 does not receive the feedback information for itself. If the feedback information is coded data, since the feedback information does not carry the identification information of the terminal at the transmitting end, the terminal 1 and the terminal 3 may consider that the data transmitted to the terminal 2 is correctly received, and actually, the terminal 2 cannot solve the data of the terminal 1. The above problem is unavoidable in a scenario where at least one terminal can select a sidestream resource by itself when two terminals communicate, and becomes serious with the increase of the number of terminals or the increase of traffic, and may have a serious influence on some services with high reliability requirements.

Based on this, an embodiment of the present application provides an information sending method, where a first terminal generates first information according to feedback information for a second terminal and an identifier of the second terminal, and then sends the first information to the second terminal, so that when the second terminal receives the first information, the second terminal may determine that the feedback information is of the second terminal, and when other terminals receive the first information, the other terminals may determine that the feedback information is not sent to the first terminal, thereby avoiding misjudgment.

In 3GPP, a cellular network-based car networking technology is proposed, and cars are interconnected through a V2X communication system. As shown in fig. 2, the V2X communication system includes smart traffic services for Vehicle-to-Vehicle (V2V), Vehicle-to-human (V2P) (including pedestrians, cyclists, drivers, or passengers), Vehicle-to-infrastructure (V2I) (e.g., Vehicle-to-roadside device (RSU) communication), and Vehicle-to-Network (V2N) (e.g., Vehicle-to-base station/Network communication). Except for V2N, where vehicle and network communications use uplink and downlink, the remaining V2V/V2I/V2P data communications all use sidelink for communications.

Roadside devices include two types: the terminal type RSU is in a non-mobile state due to being deployed at the roadside, and does not need to consider mobility. The RSU, being of the base station type, can provide timing synchronization and resource scheduling to the vehicle with which it communicates.

As shown in fig. 3, fig. 3 is a schematic diagram of a communication system provided in an embodiment of the present application, where the communication system includes: a wireless communication device 101, one or more first terminals 102 in communication with the wireless communication device 101, and at least one second terminal 103 and a third terminal 104 in communication with the first terminal 102.

Wherein the wireless communication device 101 has a Uu link (hereinafter, the second transmission link is taken as an example) with the first terminal 102 or the second terminal 103. The first terminal 102 and the second terminal 103 have a side link (hereinafter, the first transmission link is taken as an example). The first terminal 102 and the third terminal 104 have a sidelink therebetween.

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

In general, V2X traffic is transmitted on sidelink resources, and Uu traffic is transmitted on Uu resources on Uu links.

Wherein the side row resources comprise a set of time domain resources and frequency domain resources. The time domain resources may be resources in the contiguous or non-contiguous time domain. Specifically, for the time domain resource, it may be a frame, a Subframe (Subframe), a Slot (Slot), a minislot, a Symbol (Symbol), etc. with different time granularities. With time granularity of symbols, the time domain resource may include 1 or more continuous or discontinuous symbols, and some or all of the 1 or more symbols may belong to 1 or more slots. For frequency domain resources, a frequency band for sidelink communication may be divided into a plurality of subchannels (subchannels), where each subchannel includes a certain number, which may be not less than 1 Resource Block (RB). One sidelink transmission may occupy one or more sub-channels for transmitting SL Scheduling Assignment (SA) control message (SCI) and user data.

The wireless communication device 101 may provide an infrastructure of a wireless network, e.g., may provide support for communication between terminals, e.g., between the wireless communication device 101 and the first terminal 102, for example, for a cellular network base station or the like.

The wireless communication device 101 may be an evolved Node Base Station (eNB) in Long Term Evolution (LTE). The eNB accesses a 4G Core network (e.g., an Evolved Packet Core (EPC)) through an S1 interface.

With the continuous development of mobile communication technology, 4G networks gradually evolve towards 5G networks. In the evolution process, the LTE system may evolve into an LTE system. The eNB in the lte system may access the EPC network and may also access 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. Wherein the gNB accesses the NG-Core network through an N2 interface.

The wireless communication device 101 may be a conventional macro Base station eNB (evolved node b) in a conventional Universal Mobile Telecommunications System (UMTS)/LTE wireless communication System, may be a micro Base station eNB in a Heterogeneous Network (HetNet) scenario, may be a Base Band Unit (BBU) and a Radio frequency Unit (Remote Radio Unit, RRU) in a distributed Base station scenario, may be a baseband pool and an RRU in a Cloud Radio Access Network (CRAN) scenario, and may be a gbb in a future wireless communication System.

The interface of the first terminal 102 and the second terminal 103, and the interface of the first terminal 102 and the third terminal 104 through direct communication may be interface 1, for example, interface 1 may be referred to as a PC5 interface, and use a dedicated frequency band for vehicle networking (e.g., 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 (e.g., a Uu interface), and use a frequency band for cellular networks (e.g., 1.8 GHz).

The names of the interface 1 and the interface 2 are merely examples, and the names of the interface 1 and the interface 2 are not limited in the embodiments of the present application.

The terminal is a device with a wireless communication function, can be deployed on land, and comprises an indoor or outdoor terminal, a handheld terminal or a vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). A terminal, also referred to as User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), a terminal device, and the like, is a device for providing voice and/or data connectivity to a user. For example, the terminal includes a handheld device, a vehicle-mounted device, and the like having a wireless connection function. Currently, the terminal may be: mobile phone (mobile phone), tablet computer, notebook computer, palmtop computer, Mobile Internet Device (MID), wearable device (e.g. smart watch, smart bracelet, pedometer, etc.), vehicle-mounted device (e.g. car, bicycle, electric car, airplane, ship, train, high-speed rail, etc.), Virtual Reality (VR) device, Augmented Reality (AR) device, wireless terminal in industrial control (industrial control), smart home device (e.g. refrigerator, television, air conditioner, electric meter, etc.), smart robot, workshop device, wireless terminal in self driving (self driving), wireless terminal in remote surgery (remote medical supply), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety, wireless terminal in city (smart city), or a wireless terminal in a smart home (smart home), a flying device (e.g., a smart robot, a hot air balloon, a drone, an airplane), etc. In one possible application scenario, the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device. In the present application, for convenience of description, a Chip disposed in the device, such as a System-On-a-Chip (SOC), a baseband Chip, or other chips having a communication function, may also be referred to as a terminal.

The terminal can be a vehicle-mounted communication module or other embedded communication modules, and can also be a handheld communication device of a user, including a mobile phone, a tablet computer and the like.

The sideline resource can be determined by the following two ways:

mode 1, in LTE, a wireless communication device corresponding to a terminal allocates time-frequency resources to the terminal within the coverage of the wireless communication device. The terminal transmits control messages and user data of sideline communication on scheduled time-frequency resources according to the scheduling information of the wireless communication equipment, and the transmission mode is called as an LTE mode3 transmission mode or a scheduling transmission mode. An NR mode (mode) -1 is included in the new air interface (new radio, NR), where NR mode-1 further includes: the base station dynamically scheduled transmission, the base station configured semi-static transmission, and the base station configured scheduling-free transmission.

Mode 2, in LTE, the terminal selects a time-frequency resource used for communication from available time-frequency resources contained in sideline resources, and sends control messages and data on the selected time-frequency resource, which is called LTE mode4 transmission mode or non-scheduled transmission mode. In the sidelink non-scheduled transmission mode, the terminal obtains available time-frequency resources through a sensing (sending) mechanism. An important step of sending includes: all SA control messages on frequency domain resources used for sideline transmission within a period of history are decoded to obtain time frequency resource information occupied and reserved by other terminals, so that the occupied and reserved time frequency resources can be avoided when the time frequency resources are selected by self to send data, and data transmission failure caused by resource conflict is avoided. The NR mode-2 in the New Radio (NR) includes: self-selection transmission resource transmission based on sensing (transmitting), assisted resource selection, pre-configured scheduling-free transmission, other user scheduled transmission.

Referring to fig. 1, for the situation that the terminal selects the sideline resource by itself, there is a hidden terminal problem because there is no uniform resource scheduling mechanism. Hidden terminals can be in several cases as shown in fig. 1, and terminal 2 and terminal 3 are in the coverage of the base station and are scheduled by the base station for sidestream transmission, and other terminals 1, 4, 5 and 6 are out of the coverage of the base station and can perform sidestream transmission in NR mode-2 mode. If the terminal 1 and the terminal 3 cannot receive the sideline information transmitted by the other party, at this time, if the terminal (for example, the terminal 3) in the coverage area of the base station, the sideline resource selected by the base station or the sideline resource 1 allocated by the base station to the terminal 3 is the same as the sideline resource 1 selected by the terminal (for example, the terminal 1) not in the coverage area of the base station. If the terminal 3 and the terminal 1 transmit the sidestream information to the terminal 2 at the same time in the sidestream resource 1 at a certain time, the problem of hiding the terminal is formed. Similarly, the terminal 3 and the terminal 5 cannot receive the sideline information transmitted by the other party, or the terminal 4 and the terminal 6 cannot receive the sideline information transmitted by the other party, so that the terminal 1 and the terminal 3, the terminal 3 and the terminal 5, and the terminal 4 and the terminal 6 form a hidden terminal.

Hiding a terminal causes at least the following problems:

(1) HARQ feedback problem: taking a pair of hidden terminals, terminal 1 and terminal 3 as an example, since terminal 1 is out of the coverage area of the base station, the base station cannot perform resource scheduling, and at this time, if terminal 1 and terminal 3 transmit data to terminal 2 on the sidelink resource at the same time. If the sidelink resource selected by the terminal 1 is the same as the sidelink resource scheduled by the base station for the terminal 3, the terminal 1 sends the data 2 to the terminal 2 due to resource collision, and the following scenario may exist when the terminal 3 sends the data to the terminal 1:

scenario 1), since the data transmitted by terminal 1 and terminal 3 to terminal 2 constitute strong interference with each other, they may not be solved at terminal 2 side.

Scenario 2), or possibly due to different communication distances between terminals, for example, if the terminal 3 is closer to the terminal 2 than the terminal 1, the terminal 2 can correctly solve the data 1 sent by the terminal 3, and the terminal 2 does not correctly solve the data 2 sent by the terminal 1.

For scenario 2), as shown in fig. 4, if the terminal 2 correctly solves the data 1 sent by the terminal 3, it needs to feed back ACK to the terminal 3, because a more robust modulation and coding mode is usually adopted for the feedback information, and meanwhile, the sending of the feedback information does not hide the problem of the terminal, so the ACK sent by the terminal 2 is received by the terminal 1 and the terminal 3 at the same time, and both the terminal 1 and the terminal 3 consider that the last transmission is correct, and actually, the data 2 sent by the terminal 1 fails. This situation is unavoidable in NR mode-2 and becomes severe with increasing communication equipment or increasing traffic volume, and can have a severe impact on some services with higher reliability requirements.

It should be understood that the feedback information may generally be sent on a feedback channel. For example, the feedback channel may be a Physical Sidelink Feedback Channel (PSFCH) or a Physical Sidelink Control Channel (PSCCH).

The sideline data may be transmitted over a data channel. For example, the data channel may be a physical sidelink shared channel (psch).

(2) And the problem of measurement reporting: if terminal 1 and terminal 3 use the same sideline resource to transmit feedback information, at this time, if terminal 2 performs measurement feedback on the channel of terminal 1, and if terminal 3 receives measurement feedback on terminal 1 from terminal 2, since terminal 3 does not know that the feedback information is for the channel between terminal 1 and terminal 2, it will use wrong measurement feedback to perform resource selection, modulation and coding selection, MIMO selection, etc., which causes transmission errors.

In summary, an embodiment of the present application provides an information sending method, where a sender (e.g., a first terminal) carries feedback information and an identifier of a receiver (e.g., a second terminal) in first information, so that when receiving the first information, the receiver can determine whether the feedback information is transmitted to the receiver according to the identifier of the receiver carried in the first information. Specifically, if the identifier of the receiving party is consistent with the identifier of the receiving party carried in the first information, the receiving party determines that the feedback information is transmitted to the receiving party.

The embodiment of the application can be suitable for unicast and multicast transmission of a sidelink between a vehicle and a vehicle/person/infrastructure in a vehicle networking scene, is mainly used for a scene that a terminal adopts NR mode-2 transmission, and comprises the following steps: all communication devices transmit using NRmode-2 mode. Or as shown in fig. 5, part of the terminals use NR mode-2 mode transmission, part of the terminals use NR mode-1 mode transmission, and the NR mode-1 and NR mode-2 modes transmit a scene sharing time-frequency resources.

It should be understood that fig. 1, 2, 4, and 5 only illustrate two terminals as automobiles.

In the embodiment of the present application, an execution subject of an information sending method may be a first terminal, and may also be a chip applied to the first terminal, and an execution subject of an information receiving method may be a second terminal, and may also be a chip applied to the second terminal. The following embodiments exemplify an execution subject of an information transmission method as a first terminal, and an execution subject of an information reception method as a second terminal.

As shown in fig. 6, fig. 6 is a schematic diagram illustrating interaction between an information sending method and a receiving method provided in an embodiment of the present application, where the method includes:

step 101, the first terminal generates feedback information for the second terminal.

Illustratively, the feedback information in the embodiment of the present application is one or more of the following information: acknowledgement information, channel state information, information for efficient transmission by the second terminal. The confirmation information is used for indicating whether the sideline information acquired by the first terminal from the second terminal is correctly received. The channel state information is used for indicating channel parameters between the first terminal and the second terminal.

Illustratively, the information for the second terminal to efficiently transmit includes one or more of the following information: interference information, available transmission resource information, and moving speed information.

It should be understood that one or more of the feedback information including acknowledgement information, channel state information, information for efficient transmission by the second terminal may exist in any of the following cases (1) - (7):

case (1), the feedback information includes confirmation information. Case (2), the feedback information includes: channel state information. Case (3), the feedback information includes: information for efficient transmission by the second terminal. Case (4) feedback information includes acknowledgement information and channel state information. Case (5), the feedback information comprises acknowledgement information and information for efficient transmission by the second terminal. Case (6), the feedback information includes channel state information, information for the second terminal to efficiently transmit. Case (7), the feedback information comprises channel state information, acknowledgement information and information for efficient transmission by the second terminal.

Illustratively, the Channel State Information (CSI) may include one or more of the following information: channel Quality Information (CQI), Precoding Matrix Indication (PMI), Rank Indication (RI), Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), Reference Signal Received Quality (RSRQ), sounding reference Signal Resource Indication (SRI), Channel state information reference signal resource indication (CRI), and the like.

It should be understood that if the feedback information includes the confirmation information, before step 101, the method may further include: the second terminal transmits the sidelink information to the first terminal over the first transmission link. The first terminal determines whether the collateral information was received correctly.

When the feedback information includes acknowledgement information, the acknowledgement information is used to indicate that the sideline information was received correctly if the sideline information was received correctly. If the sideline information is not correctly received, the confirmation information is used for indicating that the sideline information is not correctly received.

In another implementation, the feedback information includes acknowledgement information indicating that the sideline information was received correctly if the sideline information was received correctly. If the sideline information is not correctly received, the feedback information does not include the confirmation information, namely the first terminal does not feed back the confirmation information.

In another implementation, if the sideline information is correctly received, the feedback information does not include the acknowledgement information, that is, the first terminal does not feed back the acknowledgement information. If the sideline information is not correctly received, the feedback information includes confirmation information, namely feedback confirmation information, and the confirmation information is used for indicating that the sideline information is not correctly received.

For example, the acknowledgement information may be Hybrid Automatic Repeat request (HARQ) feedback made by the first terminal for the sidelink information sent by the second terminal. For example, if the first terminal correctly receives the sidelink information sent by the second terminal on the first transmission link, the Acknowledgement information may be an Acknowledgement (ACK). For example, if the first terminal does not correctly receive the sidelink information sent by the second terminal on the first transmission link, the Acknowledgement information may be a Negative Acknowledgement (NACK).

For example, taking the sidelink information as the data packet as an example, if the first terminal performs feedback for one data packet, the acknowledgement information includes 1-bit ACK or NACK, for example, ACK is represented by 1, and NACK is represented by 0. The acknowledgement message is "1" if received correctly. If the first terminal feeds back multiple data packets, the feedback bits may be arranged in a cascade manner, for example, receiving of 2 data packets is fed back, 00 indicates that NACK is fed back for all 2 data packets, 10 indicates that ACK is fed back for the first data packet, and NACK is fed back for the second data packet, and so on, which is not described again.

It should be understood that, when the feedback information is channel state information, the method provided in the embodiment of the present application further includes: the first terminal measures a channel parameter with 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 moving speed information.

And 102, the first terminal generates first information according to the feedback information and the identifier of the second terminal.

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), an SAE Temporary Mobile subscriber identity (S-TMSI), an MME Temporary Mobile subscriber identity (MME Temporary Mobile subscriber identity, M-TMSI), an international Mobile equipment identity (IMSI), a global Unique Temporary identity (global Unique Temporary identity, GUTI), an IP address, or the like, which is used to identify a user in the network.

For example, the identifier of the second terminal may also be a user terminal index (UEindex), a link index (link index), or the like, used for uniquely identifying the user communicating with the first terminal in the network.

Illustratively, the first information is used to indicate that the feedback information is of the second terminal.

Step 103, the first terminal sends the first information to the second terminal.

For example, the first terminal may transmit the first information to the second terminal on a sidelink with the second terminal. Specifically, the first terminal may send the first information to the second terminal on a sidelink resource on a sidelink, where the sidelink between the first terminal and the second terminal is the first transmission link.

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

And 104, the second terminal receives the first information from the first terminal.

For example, the second terminal may receive the first information from the first terminal on a sidelink with the first terminal.

Illustratively, the second terminal may receive the first information on sidelink resources of the sidelink.

And 105, the second terminal determines the feedback information to be specific to 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 besides the second terminal, and at this time, the other terminals may determine that the feedback information is not transmitted to themselves according to the identifier of the second terminal.

Specifically, if the feedback information is the confirmation information, the second terminal may determine whether the sideline 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-Output (MIMO) selection according to the CSI.

The embodiment of the application provides an information sending method, which includes generating first information with feedback information and identification information of a second terminal through a first terminal, and sending the first information to the second terminal. Therefore, when the second terminal receives the first information, whether the feedback information in the first information is transmitted to the second terminal can be determined according to the standard of the second terminal in the first information. In addition, in the case that the terminal can select the sidelink resource by itself, if the sidelink resource selected by itself by another terminal is the same as the transmission resource for communication between the first terminal and the second terminal, the other terminal may be enabled to determine that the feedback information is not sent to the other terminal. Therefore, when other terminals determine that the feedback information is not sent to the other terminals, on the one hand, the feedback information is not analyzed. On the other hand, the misjudgment caused by the fact that other terminals mistakenly assume that the feedback information is sent to the terminals can be avoided. Thereby improving the reliability of sidelink transmission.

The above embodiments mainly describe the process of the first terminal sending the first information, and the following will mainly describe the specific content of the first information, i.e. 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 be specifically implemented by: the first terminal generates first information, and the first information includes the feedback information and the identifier of the second terminal.

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

In this embodiment of the application, the identifier of the second terminal is used to identify the second terminal, and the identifier of the second terminal may be an identifier of the second terminal (that is, an identifier of all the second terminals), or may be an identifier of a part of the second terminals.

As in the case of using a 16-bit RNTI to identify the second terminal, the identity of all the second terminals includes 16 bits, and taking the example that the identity of part of the second terminals includes 8 bits, the identity of part of the second terminals may be the first 8 bits or the last 8 bits of 16 bits, or any other 8 bits included in the 16 bits, which is not limited herein.

Illustratively, taking N as 16 and the bit number (bit) included in the feedback information as B, when the size of the feedback message satisfies that B is less than or equal to K bits, the identifier of the second terminal is directly added to the feedback information header to form the first information. As shown in fig. 6. It should be appreciated that fig. 6 exemplifies that the feedback information includes acknowledgement information, CSI, and information for efficient transmission by the second terminal.

Optionally, in this embodiment of the application, the first terminal may further determine whether to check the first information according to the bit number of the obtained first information. For example, taking the bit number of the first information obtained in fig. 7 as C as an example, if the first terminal determines that the bit number C of the first information is less than or equal to M, the first terminal does not Check the first information (e.g., Cyclic Redundancy Check (CRC)). If the bit number C of the first information is greater than or equal to (M +1), the first terminal checks the first information.

Specifically, when the first terminal verifies the first information, the length of the check code when verifying the first information may be selected according to the bit number of the first information. For example, if the bit number C of the first information satisfies: and (M +1) is less than or equal to C and less than or equal to L, when the first terminal verifies the first information, the first terminal generates a first verification code of the first information by using a first cyclic generator polynomial (the length of the first cyclic generator polynomial is L1), and the length of the first verification code of the first information is L1. If the bit number C of the first information satisfies: and C is greater than or equal to (L +1), when the first terminal verifies the first information, the first terminal generates a first verification code of the feedback information by using a second cyclic generator polynomial (the length of the second cyclic generator polynomial is L2), and the length of the second verification code of the first information is L2. Wherein L1 is less than L2.

In the present embodiment, K, L2, L1, and M, L are positive integers, and the values of K, L2, L1, and M, L are not limited in the present embodiment.

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

As shown in fig. 8, C is greater than or equal to 12 and less than or equal to 19 in fig. 8, and taking CRC check on the first information to obtain a CRC check code as an example, the length of the CRC check code of the first information is 6 bits.

As shown in FIG. 9, if C ≧ 20 is used in FIG. 9, and the CRC check code obtained by performing CRC check on the first information is taken as an example, the length of the CRC check code of the first information is 11 bits.

In example 1, before step 105, a method provided in an embodiment of the present application further includes:

the second terminal determines that the first information comprises the identifier of the second terminal.

For example, the second terminal may parse the first information to obtain the feedback information and the identifier of the second terminal.

At this time, step 105 may be specifically implemented by: and the second terminal determines the feedback information to be specific to the second terminal according to the identifier of the second terminal.

Specifically, the second terminal determines an 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 by: the first terminal generates first information, and the first information includes feedback information and a check code scrambled by an identifier of the second terminal.

Specifically, step 102 may be implemented by: and the first terminal generates a check code according to the feedback information. And the first terminal scrambles the check code by adopting the identifier of the second terminal to obtain the check code scrambled by adopting the identifier of the second terminal. And the first terminal generates first information according to the feedback information and the check code scrambled by the identifier of the second terminal.

Illustratively, the generating, by the first terminal, the check code according to the feedback information includes: and the first terminal adopts the CRC check feedback information to generate a check code.

Illustratively, the first terminal scrambling the check code according to the feedback information and the identifier of the second terminal includes: the first terminal processes (e.g., encodes) the feedback information and the check code scrambled with the identification of the second terminal to generate the first information.

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

Because the feedback information has different sizes, 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 identifier of the second terminal when the first terminal uses the identifier of the second terminal to scramble the CRC is different, the following will be introduced separately:

for example, when the size of the feedback message B satisfies (M +1) ≦ B ≦ L, the first terminal may generate the third check code for the feedback information using the third cyclic generator polynomial (the third cyclic generator polynomial may have a length of L3), and then scramble the third check code with the identification of the second terminal having a length of L3.

Illustratively, as shown in fig. 10, when the size of the feedback message B satisfies 12 ≦ B ≦ 19 bits, the first terminal generates a third check code for the feedback information using CRC check bits having a length of 6bits (e.g., L3 ≦ 6), and then CRC scrambles the third check code with the identification of the 6-bit second terminal.

For another example, when the size of the feedback message B satisfies B ≧ L +1, the first terminal generates the fourth check code of the feedback information using a fourth cyclic generator polynomial (the length of the fourth cyclic generator polynomial is L4), and then scrambles the fourth check code using the identity of the second terminal of length L4. The length of the third check code sequence is less than the length of the fourth check code sequence.

For example, as shown in fig. 11, when the size of the feedback message satisfies that B ≧ 20, the first terminal adds 11 (e.g., L4 ═ 11) bits of CRC check bits to the feedback message to obtain a fourth check code, and then CRC scrambles the fourth check code with the identifier of the 11-bit second terminal.

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

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

It should be understood that the first information includes the feedback information and a check code scrambled with the identifier of the second terminal, and therefore, if other terminals receive the first information, the first information will be descrambled using the respective terminal identifiers, and the other terminals cannot descramble the first information correctly, and thus cannot obtain the feedback information. In this case, only the terminal that descrambles the first information correctly can determine that the feedback information is directed to itself.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is to be understood that the respective network elements, e.g. the first terminal and the second terminal. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the first terminal and the second terminal may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given by taking the division of each function module corresponding to each function as an example:

the method of the embodiment of the present application is described above with reference to fig. 6, and the information transmitting apparatus and the information receiving apparatus that execute the method provided by the embodiment of the present application are described below. Those skilled in the art will understand that the method and the apparatus can be combined and referred to each other, and the information transmitting apparatus provided in the embodiments of the present application, the step performed by the first terminal, can perform the above information transmission, and the information receiving apparatus can perform the information receiving method in the above embodiments, i.e., the step performed by the second terminal.

It should be noted that the embodiments of the present application may be referred to or referred to, for example, the same or similar steps, method embodiments and apparatus embodiments may be referred to, without limitation.

Fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present application. The structure of the first terminal and the second terminal may refer to the structure shown in fig. 12.

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

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

Optionally, terminal 121 may also include an output device 1214, an input device 1215, and one or more antennas 1216. An antenna 1216 is coupled to the transceiver 1212, and an output device 1214 and an input device 1215 are coupled 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, such as processing a communication protocol and communication data, or controlling the entire terminal device, executing a software program, processing data of the software program; or to assist in completing computational processing tasks, such as processing of graphical images or audio, etc.; or processor 1211 may be used to perform one or more of the functions described above

The output device 1214 is in communication with the processor 1211 and may display information in a variety of ways. For example, the output device 1214 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) Display device, a Cathode Ray Tube (CRT) Display device, a projector (projector), or the like. The input device 1215 is in communication with the processor 1211 and may accept user input in a variety of ways. For example, the input device 1215 can be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

The processor, such as the processor 1211, in the embodiment of the present application may include at least one of the following types: a general-purpose Central Processing Unit (CPU), a Digital Signal Processor (DSP), a microprocessor, an Application-specific integrated Circuit (ASIC), a Microcontroller (MCU), a Field Programmable Gate Array (FPGA), or an integrated Circuit for implementing logical operations. For example, the processor 1211 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The at least one processor 1211 may be integrated in one chip or located on a plurality of 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 memory devices that may store static information and instructions, Random Access Memory (RAM) or other types of dynamic memory devices that may store information and instructions, and Electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be, but is not limited to, a compact disk-read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

The memory 1213 may be separate and coupled to the processor 1211. Optionally, the memory 1213 may be integrated with the processor 1211, for example, within a chip. The memory 1213 can store program codes for executing the technical solutions of the embodiments of the present application, and is controlled by the processor 1211 to execute, and various executed computer program codes can also be regarded as drivers of the processor 1211. For example, the processor 1211 is configured to execute the computer program code stored in the memory 1213, so as to implement the technical solution in the embodiment 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 a base station or the first terminal and a second terminal, and 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 may receive a radio frequency signal, and a receiver Rx of the transceiver 1212 is configured to receive the radio frequency signal from the antennas, convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or the digital intermediate frequency signal to the processor 1211, so that the processor 1211 performs further processing on the digital baseband signal or the 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 a modulated digital baseband signal or a digital intermediate frequency signal from the processor 1211, convert the modulated digital baseband signal or the digital intermediate frequency signal into a radio frequency signal, and transmit the radio frequency signal through the one or more antennas 1216. Specifically, the receiver Rx may selectively perform one or more stages of down-mixing and analog-to-digital conversion processes on the rf signal to obtain a digital baseband signal or a digital intermediate frequency signal, wherein the order of the down-mixing and analog-to-digital conversion processes is adjustable. The transmitter Tx may selectively perform one or more stages of up-mixing and digital-to-analog conversion processes on the modulated digital baseband signal or the modulated digital intermediate frequency signal to obtain the rf signal, where the order of the up-mixing and the digital-to-analog conversion processes is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal.

An example, for example, the method performed by the first terminal in the embodiment of the present application, the first terminal may perform the structure shown in fig. 12, wherein the actions of the first terminal in transmitting or receiving may be performed by the processor 1211 of the first terminal through the antenna 1216. The actions of the first terminal, such as determining or processing, may be performed 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 an identification of the second terminal. For example, processor 1211 of the first terminal transmits the first information to the second terminal via antenna 1216.

Specifically, the specific content of the feedback information may refer to the description in the above embodiments, and is not described herein again.

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

In another possible implementation, the processor 1211 of the first terminal may support the first terminal to generate the first information, and the first information includes the feedback information and a check code scrambled with an identification of the second terminal.

Specifically, the processor 1211 of the first terminal may support the first terminal to generate the 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 with the identity of the second terminal, resulting in the check code scrambled with the identity 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 with the identification of the second terminal.

For another example, for example, in the method performed by the second terminal in the embodiment of the present application, the second terminal may perform the operations shown in fig. 12, where the actions of transmitting or receiving by the second terminal may be performed by the processor 1211 of the second terminal through the antenna 1216, and the actions of determining or processing by the second terminal may be performed by the processor 1211 of the second terminal. For example, processor 1211 of the second terminal may receive the first information from the first terminal via antenna 1216. The processor 1211 of the second terminal may support the second terminal to determine the feedback information as to the second terminal according to the identity of the second terminal.

In addition, in the embodiment of the present application, each step in the method performed by the first terminal or the second terminal, a unit or a module for performing each step in the method exists in the first terminal or the second terminal; each step in the method performed by the first terminal, there being a unit or module in the first terminal that performs each step in the method; each step of the method is performed by a second terminal in which there are units or modules performing each step of the method.

The following description will be given by taking the division of each function module corresponding to each function as an example:

as shown in fig. 13, fig. 13 is a schematic structural diagram of an information sending apparatus provided in an embodiment of the present application, where the information sending apparatus may be a first terminal in the embodiment of the present application, and may also be a chip applied in the first terminal.

The information transmitting apparatus includes: a processing unit 201 and a transmitting unit 202. Wherein, the processing unit 201 is configured to generate feedback information for the second terminal, and to generate the first information according to the feedback information and the identifier of the second terminal. A sending unit 202, configured to send the first information to the second terminal.

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

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

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

In the case of using an integrated unit, fig. 14 shows a schematic diagram of a possible logical structure of the information transmission apparatus related to the above-described embodiment. The information transmission apparatus may be the first terminal or a chip applied in the first terminal, and includes: a processing module 112 and a communication module 113.

Among them, the processing module 112 is used for controlling and managing the action of the information sending device, for example, the processing module 112 is used for executing the step of processing the message or data on the information sending device side, for example, supporting the information sending device to execute the step 101 and the step 102 in the above embodiments. The communication module 113 is used to support the information sending apparatus to execute step 103 in the above embodiment. And/or other processes performed by information transmitting devices for use with the techniques described herein.

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

The processing module 112 may be a processor or controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication module 113 may be a transceiver, a transceiving circuit or a communication interface, etc. 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 apparatus according to the present application may be the device shown in fig. 12.

As shown in fig. 15, fig. 15 is a schematic structural diagram of an information receiving apparatus provided in the embodiment of the present application, where the information receiving apparatus may be a second terminal in the embodiment of the present application, and may also be a chip applied to the second terminal.

The information receiving apparatus includes: a receiving unit 301 and a processing unit 302. The receiving unit 301 is configured to receive first information from a first terminal. The processing unit 302 is configured to determine the feedback information as being for the second terminal according to the identifier of the second terminal.

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

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

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

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

The processing module 212 is configured to control and manage the operation of the information receiving apparatus, for example, the processing module 212 is configured to execute a step of performing message or data processing on the information receiving apparatus side, for example, support the information receiving apparatus to execute step 105 in the foregoing embodiment. 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 apparatus may further include a storage module 211 for storing program codes and data of the information receiving apparatus.

The processing module 212 may be a processor or controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication module 213 may be a transceiver, a transceiving circuit or a communication interface, etc. The storage module 211 may be a memory.

When the processing module 212 is a processor 1211, the communication module 213 is a communication interface or transceiver 1212, and the storage module 211 is a memory 1213, the information receiving apparatus according to the present application may be the device shown in fig. 12.

It should be understood that the above division of the units in the information sending apparatus and the information receiving apparatus is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And the units in the device can be realized in the form of software called by the processing element; or may be implemented entirely in hardware; part of the units can also be realized in the form of software called by a processing element, and part of the units can be realized in the form of hardware. For example, each unit may be a processing element separately set up, or may be implemented by being integrated into a chip of the apparatus, or may be stored in a memory in the form of a program, and a function of the unit may be called and executed by a processing element of the apparatus. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In the implementation process, the steps of the method or the units above may be implemented by integrated logic circuits of hardware in a processor element or in a form called by software through the processor element.

In one example, the units in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. As another example, when a Unit in a device may be implemented in the form of a Processing element scheduler, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking programs. As another example, these units may 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 a communication interface of the apparatus for receiving signals from other apparatuses. For example, when the device is implemented in the form of a chip, the receiving unit is a communication interface or a communication interface for the chip to receive signals from other chips or devices. The above transmitting unit (or a unit for transmitting) is a communication interface of the apparatus for transmitting a signal to other apparatuses. For example, when the device is implemented in the form of a chip, the transmitting unit is a communication interface or a communication interface for the chip to transmit signals to other chips or devices.

Fig. 17 is a schematic structural diagram of a chip 150 according to an embodiment of the present invention. Chip 150 includes at least one processor 1510 and a communication interface 1530.

Optionally, the chip 150 further includes a memory 1540, which may include both read-only memory and random access memory, and provides operating instructions and data to the processor 1510. A portion of memory 1540 may also include non-volatile random access memory (NVRAM).

In some embodiments, memory 1540 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

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

One possible implementation is: the chips used for the first and second terminals are similar in structure, and different devices may use different chips to implement their respective functions.

The processor 1510 controls the operation of the first terminal and the second terminal, and the processor 1510 may also be referred to as a Central Processing Unit (CPU). Memory 1540 can include both read-only memory and random-access memory, and provides instructions and data to processor 1510. A portion of memory 1540 may also include non-volatile random access memory (NVRAM). In particular implementations, memory 1540, communication interface 1530, and memory 1540 are coupled together by a bus system 1520, where bus system 1520 may include a power bus, a control bus, a status signal bus, and so forth, in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 1520 in FIG. 17.

The information sending method or the 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 having signal processing capabilities. In implementation, the steps of the information sending method or the information receiving method may be implemented by hardware integrated logic circuits or instructions in the form of software in the processor 1510. The processor 1510 may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A 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 connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and performs the steps of the above method in combination with the hardware thereof.

Optionally, the communication interface 1530 is used for performing the steps of receiving and transmitting of the first terminal and the second terminal in the embodiment shown in fig. 6.

The processor 1510 is configured to perform 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 by the memory for execution by the processor may be implemented in the form of a computer program product. 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. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

In one aspect, a computer storage medium is provided, in which instructions are stored, and when executed, the instructions cause a first terminal or a chip applied in the first terminal to perform steps 101, 102, and 103 in the embodiments. And/or other processes performed by the first terminal or a chip applied in the first terminal for use with the techniques described herein. The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

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

In one aspect, a computer program product comprising instructions stored therein, when executed, cause a first terminal or a chip applied in the first terminal to perform steps 101, 102 and 103 in the embodiments is provided. And/or other processes performed by the first terminal or a chip applied in the first terminal for use with the techniques described herein.

In still another aspect, a computer program product comprising instructions stored therein, which when executed, cause a second terminal or a chip applied in the second terminal to perform steps 104 and 105 in the embodiments. And/or other processes performed by the second terminal or a chip applied in the second terminal for the techniques described herein.

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

In another aspect, a chip is provided, where the chip is applied in a network device, and the chip includes at least one processor and a communication interface, where the communication interface and the at least one processor are interconnected by a line, and the processor is configured to execute instructions to perform steps 104 and S105 in the embodiments. 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 comprising: a first terminal employing the structure shown in fig. 12, and a second terminal employing the structure shown in fig. 12.

In yet another aspect, the present application provides a communication system comprising: a first terminal employing the structure shown in fig. 13, and a second terminal employing the structure shown in fig. 15.

In yet another aspect, the present application provides a communication system comprising: 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 will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An information transmission method, comprising:

the first terminal generates feedback information aiming at the second terminal;

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

and the first terminal sends the first information to the second terminal.

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

and the first terminal generates the first information, and the first information comprises the feedback information and the identifier of the second terminal.

3. The method of claim 2, wherein the number of bits of the feedback information is less than or equal to N, where N is a positive integer.

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

and the first terminal generates the first information, wherein the first information comprises the feedback information and a check code scrambled by adopting the identifier of the second terminal.

5. The method according to claim 1 or 4, wherein the first terminal generates the first information according to the feedback information and the identifier of the second terminal, and comprises:

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

the first terminal scrambles the check code by adopting the identifier of the second terminal to obtain the check code scrambled by adopting the identifier of the second terminal;

and the first terminal generates the first information according to the feedback information and the check code scrambled by the identifier of the second terminal.

6. The method of claim 5, wherein the number of bits of the feedback information is greater than or equal to N + 1.

7. The method according to claim 5 or 6, characterized in that the number of bits of the identity of the second terminal is the same as the number of bits of the check code.

8. The method according to any of claims 1-7, wherein the feedback information is one or more of the following:

acknowledgement information, channel state information, information for efficient transmission by the second terminal;

the confirmation information is used for indicating whether the sideline information acquired by the first terminal from the second terminal is correctly received or not;

the channel state information is used for indicating channel parameters between the first terminal and the second terminal.

9. The method of claim 8, wherein the information for the second terminal to efficiently transmit comprises one or more of the following information:

interference information, available transmission resource information, and moving speed information.

10. An information receiving method, comprising:

the method comprises the steps that a second terminal receives first information from a first terminal, wherein the first information is generated according to feedback information and an identifier of the second terminal;

and the second terminal determines the feedback information to be specific to the second terminal according to the identifier of the second terminal.

11. The method of claim 10, wherein the first information comprises the feedback information and an identity of the second terminal.

12. The method according to claim 10 or 11, wherein before the second terminal determines that the feedback information is for the second terminal according to the identity of the second terminal, the method further comprises:

and the second terminal determines that the first information comprises the identifier of the second terminal.

13. The method according to claim 11 or 12, wherein the bit number of the feedback information is less than or equal to N, N being a positive integer.

14. The method of claim 10, wherein the first information comprises the feedback information and a check code scrambled with an identity of the second terminal.

15. The method of claim 10, wherein before the second terminal determines that the feedback information is for the second terminal according to the identity of the second terminal, the method further comprises:

and the second terminal descrambles the check code in the first information by adopting the identifier of the second terminal.

16. The method according to claim 14 or 15, wherein the bit number of the feedback information is greater than or equal to N + 1.

17. A method according to any of claims 13-16, characterized in that the number of bits of the identity of the second terminal is the same as the number of bits of the check code.

18. The method according to any of claims 10-17, wherein the feedback information is one or more of the following:

19. The method of claim 18, wherein the information for the second terminal to efficiently transmit comprises one or more of the following information:

20. An information transmission apparatus, wherein the apparatus is a first terminal or a chip applied in the first terminal, the apparatus comprising:

the processing unit is used for generating feedback information aiming at a second terminal and generating first information according to the feedback information and the identifier of the second terminal;

a sending unit, configured to send the first information to the second terminal.

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

the processing unit is specifically configured to generate the first information, where the first information includes the feedback information and an identifier of the second terminal.

22. The apparatus of claim 21, wherein the number of bits of the feedback information is less than or equal to N, where N is a positive integer.

23. The apparatus according to claim 20, wherein the processing unit is configured to generate the first information according to the feedback information and the identifier of the second terminal, and specifically includes: the processing unit is specifically configured to generate the first information, where the first information includes the feedback information and a check code scrambled by using an identifier of the second terminal.

24. The apparatus according to claim 23, wherein the processing unit is specifically configured to generate a check code according to the feedback information, and configured to scramble the check code with the identifier of the second terminal to obtain the check code scrambled with the identifier of the second terminal; and generating the first information according to the feedback information and the check code scrambled by the identifier of the second terminal.

25. The apparatus of claim 24, wherein the number of bits of the feedback information is greater than or equal to N + 1.

26. The apparatus according to claim 24 or 25, wherein the number of bits of the identity of the second terminal is the same as the number of bits of the check code.

27. The apparatus according to any of claims 20-26, wherein the feedback information is one or more of the following:

28. The apparatus of claim 27, wherein the information for the second terminal to efficiently transmit comprises one or more of the following information:

29. An information receiving apparatus, wherein the apparatus is a second terminal or a chip applied in the second terminal, the apparatus comprising:

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

and the processing unit is used for determining the feedback information to be specific to the second terminal according to the identifier of the second terminal.

30. The apparatus of claim 29, wherein the first information comprises the feedback information and an identity of the second terminal.

31. The apparatus of claim 30, wherein the processing unit is specifically configured to determine that the first information includes an identifier of the second terminal.

32. The apparatus according to claim 30 or 31, wherein the bit number of the feedback information is less than or equal to N, where N is a positive integer.

33. The apparatus of claim 29, wherein the first information comprises the feedback information and a check code scrambled with an identity of the second terminal.

34. The apparatus of claim 33, wherein the processing unit is specifically configured to descramble a check code in the first information using an identifier of the second terminal.

35. The apparatus according to claim 33 or 34, wherein the bit number of the feedback information is greater than or equal to N + 1.

36. The apparatus according to any of claims 30-35, wherein the number of bits of the identity of the second terminal is the same as the number of bits of the check code.

37. The apparatus according to any of claims 29-36, wherein the feedback information is one or more of the following:

38. The apparatus of claim 37, wherein the information for the second terminal to efficiently transmit comprises one or more of the following information:

39. A readable storage medium having stored therein instructions which, when executed, implement the method of any of claims 1-9 or the method of any of claims 10-17.