CN114339656A

CN114339656A - Auxiliary link resource processing method and device

Info

Publication number: CN114339656A
Application number: CN202011053785.0A
Authority: CN
Inventors: 曲鑫
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2022-04-12
Also published as: WO2022068851A1

Abstract

The embodiment of the application provides a method and a device for processing auxiliary link resources, wherein the method comprises the following steps: and the second terminal equipment receives indication information sent by the first terminal equipment, wherein the indication information is used for indicating the first resource. And the second terminal equipment determines the auxiliary link transmission resource of the second terminal equipment according to the first resource, wherein the auxiliary link transmission resource is used for data transmission between the second terminal equipment and other terminal equipment. The second terminal device determines the auxiliary link transmission resource for data transmission with other terminal devices according to the first resource indicated by the indication information by receiving the indication information sent by the first terminal device, so that the problems of hidden nodes and half-duplex can be effectively avoided, the resource collision is avoided, and the transmission reliability is improved.

Description

Auxiliary link resource processing method and device

Technical Field

The present application relates to communications technologies, and in particular, to a method and an apparatus for processing auxiliary link resources.

Background

Vehicle to anything (V2X) communication is a key technical direction of the protocol version 16(Release 16, R16), and NR V2X is a key technical means for enabling vehicle networking as an enhancement of Long Term Evolution (LTE) V2X.

Currently, in V2X communication, a device may acquire transmission resources in a selection manner based on sensing, which is generally that the device receives a secondary link control channel (PSCCH) sent by another V2X device in a resource sensing window, determines reserved resources of the other V2X device according to the PSCCH, excludes the reserved resources from the resource selection window, and selects resources for secondary link communication from remaining available resources.

However, when the transmission resource is acquired based on the selection manner of sensing, the device may encounter a half-duplex problem and a hidden node problem, so that resource collision may occur, resulting in reduced reliability of transmission.

Disclosure of Invention

The embodiment of the application provides a method and a device for processing auxiliary link resources, so as to overcome the problem of reduced transmission reliability.

In a first aspect, an embodiment of the present application provides a method for processing a secondary link resource, including:

the method comprises the steps that a second terminal device receives indication information sent by a first terminal device, wherein the indication information is used for indicating a first resource;

and the second terminal equipment determines an auxiliary link transmission resource of the second terminal equipment according to the first resource, wherein the auxiliary link transmission resource is used for data transmission between the second terminal equipment and other terminal equipment.

In one possible design, the indication information includes at least one of the following information: secondary link control information SCI, high level instructions.

In one possible design, the SCI includes a first indication field, where the first indication field is used to indicate information of the other terminal device.

In one possible design, the second terminal device and the first terminal device perform unicast communication, and the other terminal devices include the first terminal device;

the value of the first indication field is M high-order bits of a source layer second identifier of the first terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M high bits of a destination layer two identifier of the first terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a source layer two identifier of the first terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a destination layer two identifier of the first terminal equipment;

wherein M is an integer greater than or equal to 1.

In a possible design, the second terminal device and a third terminal device perform unicast communication, where the third terminal device is a terminal device different from the first terminal device, and the other terminal devices include the third terminal device;

the value of the first indication field is M high-order bits of a source layer second identifier of the third terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M high bits of a destination layer two identifier of the third terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a source layer two identifier of the third terminal equipment; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a destination layer two identifier of the third terminal equipment;

wherein M is an integer greater than or equal to 1.

In a possible design, the second terminal device and a first terminal device group corresponding to the first terminal device perform multicast communication, and the other terminal devices include terminal devices in the first terminal device group;

the value of the first indication field is M high bits of a group layer two identifier of the first terminal equipment group; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a group layer two identifier of the first terminal equipment group;

wherein M is an integer greater than or equal to 1.

In a possible design, the second terminal device and a second terminal device group corresponding to the third terminal device perform multicast communication, where the other terminal devices include terminal devices in the second terminal device group;

the value of the first indication field is M high bits of a group layer two identifier of the second terminal equipment group; alternatively, the first and second electrodes may be,

the value of the first indication field is M low-bit bits of a group layer two identifier of the second terminal equipment group;

wherein M is an integer greater than or equal to 1.

In one possible design, the first indication field is used to indicate that the other terminal device is not specified;

the value of the first indication field is a first preset value of M bits, wherein M is an integer greater than or equal to 1.

In one possible design, the higher layer signaling includes a second indication field, where the second indication field is used to indicate information of the other terminal device.

the value of the second indication field is a source layer second identifier of the first terminal equipment; alternatively, the first and second electrodes may be,

and the value of the second indication field is the destination layer two identification of the first terminal equipment.

the value of the second indication field is a source layer second identifier of the third terminal equipment; alternatively, the first and second electrodes may be,

and the value of the second indication field is the destination layer two identifier of the third terminal equipment.

In a possible design, the second terminal device and a third terminal device group corresponding to the first terminal device perform multicast communication, where the other terminal devices include terminal devices in the third terminal device group;

and the value of the second indication domain is a group layer two identifier of the third terminal equipment group.

In a possible design, the second terminal device and a fourth terminal device group corresponding to the third terminal device perform multicast communication, where the other terminal devices include terminal devices in the fourth terminal device group;

and the value of the second indication domain is a group layer two identifier of the fourth terminal equipment group.

In one possible design, the second indication field is used to indicate that the other terminal device is not specified;

and the value of the second indication field is a second preset value of R bits, wherein R is the bit number of the second indication field.

In one possible design, the value of the indication field is a state value of X bits, where X is an integer greater than or equal to 1, and the state value includes at least any one of the following: a first state value, a second state value, a third state value;

the first state value is used for indicating that the other terminal equipment comprises the first terminal equipment or terminal equipment in a terminal equipment group corresponding to the first terminal equipment;

the second state value is used for indicating that the other terminal equipment comprises the third terminal equipment or terminal equipment in a terminal equipment group corresponding to the third terminal equipment;

the third state value is used for indicating that the other specified terminal equipment does not exist.

In one possible design, the indication information is two-stage secondary link control information, and the indication field is included in second stage information of the secondary link control information.

In one possible design, the indication information is single-phase secondary link control information, and the indication field is included in the secondary link control information.

In a possible design, the indication information further includes a resource location indication field, where the resource location indication field is used to indicate a time-frequency domain location where the first resource is located.

In a possible design, the indication information further includes a source layer one identifier of the first terminal device and a destination layer one identifier of the second terminal device.

In one possible design, the first resource is a secondary link transmission resource that allows the second terminal device to perform data transmission; or

The first resource is an auxiliary link transmission resource which does not allow the second terminal device to perform data transmission.

In a second aspect, an embodiment of the present application provides an apparatus for processing a secondary link resource, including:

a receiving module, configured to receive, by a second terminal device, indication information sent by a first terminal device, where the indication information is used to indicate a first resource;

and a determining module, configured to determine, by the second terminal device, an auxiliary link transmission resource of the second terminal device according to the first resource, where the auxiliary link transmission resource is used for data transmission between the second terminal device and other terminal devices.

wherein M is an integer greater than or equal to 1.

In a third aspect, an embodiment of the present application provides a secondary link resource processing device, including:

a memory for storing a program;

a processor for executing the program stored by the memory, the processor being adapted to perform the method as described above in the first aspect and any one of the various possible designs of the first aspect when the program is executed.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, comprising instructions which, when executed on a computer, cause the computer to perform the method as described above in the first aspect and any one of the various possible designs of the first aspect.

Drawings

Fig. 1 is a schematic view of a scenario of V2X communication according to an embodiment of the present application;

fig. 2 is a schematic view of another scenario of V2X communication provided in an embodiment of the present application;

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

FIG. 4 is a schematic diagram illustrating selection of a collaboration resource between users according to an embodiment of the present application;

fig. 5 is a flowchart of a method for processing a secondary link resource according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating an implementation of unicast communication between a second terminal device and a first terminal device according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating an implementation of multicast communication between a second terminal device and a terminal device group of a first terminal device according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating an implementation of unicast communication between a second terminal device and a third terminal device according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating an implementation of multicast communication performed by a terminal device group of a second terminal device and a third terminal device according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating an implementation of broadcast communication performed by a second terminal device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a secondary link resource processing apparatus according to an embodiment of the present application;

fig. 12 is a schematic diagram of a hardware structure of a secondary link resource processing device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For clarity and conciseness of the following descriptions of the various embodiments, a brief introduction to the related art is first given:

For example, V2X communication may include Vehicle-to-Vehicle communication (V2V), Vehicle-to-roadside Infrastructure communication (V2I), Vehicle-to-human communication (V2P), and Vehicle-to-application server communication (V2N), among others. The embodiment of the present application does not limit the specific communication scenario of V2X, and it may be selected and expanded according to actual requirements.

In V2X communication, V2X devices communicate with each other via a secondary link (sidelink), which may also be referred to as a sidelink, a secondary link, a side link, and the like.

In a possible implementation manner, the auxiliary link terminal and the auxiliary link terminal may use resources configured by the network device, and directly perform communication through the auxiliary link, such as signaling interaction in security aspects, such as internet access, call making, notification of location information, and the like, without passing through a network device.

For V2X communication, there are two resource allocation manners, which are described below with reference to fig. 1 and fig. 2 respectively, where fig. 1 is a schematic view of a scenario of V2X communication provided in this embodiment of the present application, and fig. 2 is a schematic view of another scenario of V2X communication provided in this embodiment of the present application.

The first method is a scheduled resource allocation (scheduled resource allocation) method, in which a base station configures resources for the V2X device for secondary link communication, for example, referring to fig. 1, the base station may dynamically or semi-dynamically schedule resources for the terminal device based on a request message sent by the terminal device. In this way, the terminal device can communicate using the resources scheduled by the base station. This approach is mainly applied to mode 3(mode3) in LTE V2X communication and mode 1(mode 1) in NR V2X communication.

A second method is a resource selection method based on sensing, which does not require a base station to schedule resources, as shown in fig. 2, in the resource selection method based on sensing, the base station may configure a resource pool for a terminal device through a System Information Block (SIB) message or Radio Resource Control (RRC) signaling, or pre-configure the resource pool. In this way, the terminal device can obtain resources from the resource pool to communicate.

Specifically, the V2X device may receive a physical downlink control channel (PSCCH) sent by another V2X device within a resource sensing window, determine reserved resources of another V2X device according to the PSCCH, exclude the reserved resources from a resource selection window, and select resources for secondary link communication from the remaining available resources. This approach is mainly applied to mode 4(mode4) in LTE V2X communication and mode 2(mode2) in NR V2X communication. In the manner of resource selection based on perception,

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.

Currently, in LTE V2X communication and NR V2X communication, due to half duplex (half duplex), a V2X device cannot receive PSCCHs transmitted by other V2X devices while transmitting secondary link data, and thus a V2X device cannot exclude reserved resources of other V2X devices in a resource selection window for a half-duplex slot.

At this time, a scheme for excluding all possible reserved resources is introduced in LTE V2X communication, that is, when a V2X device transmits secondary link data in a certain time slot within a resource sensing window, a group of time slots is obtained according to the time slot and all possible reservation periods of the reserved resources, and for the time slots within the group of time slots that fall into a resource selection window, all frequency domain resources on the time slots are excluded.

However, the NR V2X communication supports a more flexible reservation period, and if the method of excluding reserved resources in the LTE V2X communication is continuously used, the resources in the resource selection window are too few or no resources are selectable, so that the NR V2X communication resource efficiency is reduced and the communication fails.

In summary, in the perceptual resource selection method, the half-duplex problem mentioned above may cause a reduction in the communication resource utilization efficiency.

In addition to the half-duplex problem mentioned above, when the terminal device obtains the transmission resource based on the perceptual resource selection method, the terminal device may also encounter a hidden-node problem (hidden-node problem), an exposed-node problem (exposed-node problem), and continuous resource collision caused by other reasons, which all affect the resource utilization efficiency and transmission reliability of the perceptual resource selection method.

Here, a hidden node is briefly introduced with reference to fig. 3, and fig. 3 is a schematic diagram of a hidden node provided in an embodiment of the present application.

As shown in fig. 3, it is assumed that there are currently 3 terminal devices, which are terminal device 1, terminal device 2, and terminal device 3.

However, since the terminal device 1 and the terminal device 2 are not in the transmission range of each other, and therefore cannot sense the other, a situation that the terminal device 1 and the terminal device 3 simultaneously transmit data to the terminal device 2 may occur, where data from the terminal device 1 and the terminal device 3 collide at the terminal device 2, so that data loss and network performance are reduced, where the terminal device 1 and the terminal device 2 are referred to as hidden nodes, and this problem of misjudgment due to transmission distance is referred to as a hidden node problem.

In order to solve the series of problems described above, it is currently planned to introduce an inter-user cooperation mechanism into mode 2(mode2) in NR V2X communication, wherein the inter-user cooperation mechanism means that one terminal device transmits a set of resource information to another terminal device to assist in resource selection.

The method for processing the secondary link resource provided by the embodiment of the present application specifically proposes how the first terminal device indicates the resource information to the second terminal device, and the method for processing the secondary link resource provided by the present application is introduced below with reference to the specific embodiment.

First, referring to fig. 4, a brief description is given to inter-user collaboration resource selection in the present application, and fig. 4 is a schematic diagram of inter-user collaboration resource selection provided in an embodiment of the present application.

As shown in fig. 4, the second terminal device selects an auxiliary link transmission resource by using mode2 in NR V2X communication, and sends auxiliary link data to other terminal devices, where the number of the other terminal devices may be one or more, and the second terminal device may send the auxiliary link data to a third terminal device in a unicast, multicast, or broadcast manner, where in this embodiment, the other terminal devices refer to any one or more terminal devices that perform data transmission with the second terminal device.

The secondary link transmission resource determined by the second terminal device may include, for example: the second terminal device obtains the auxiliary link transmission resource through self-perception, and/or obtains a group of auxiliary link resources from the first terminal device through cooperation among users, wherein the first terminal device can determine a group of resources for the second terminal device through a perception method, and the group of resources can be used by the first terminal device or not recommended to be used by the first terminal device.

When selecting the secondary link transmission resource finally used for transmission, the second terminal device may, for example, comprehensively consider acquiring a set of secondary link transmission resources through self-awareness and/or acquiring a set of secondary link resources from the first terminal device through inter-user cooperation, where the secondary link transmission resource finally used for transmission is selected according to the implementation of the second terminal device.

Based on the content introduced in fig. 4, the method provided in the embodiment of the present application is described in detail below with reference to fig. 5, and fig. 5 is a flowchart of a method for processing a secondary link resource provided in the embodiment of the present application.

As shown in fig. 5, the method includes:

s501, the second terminal device receives indication information sent by the first terminal device, wherein the indication information is used for indicating the first resource.

In this embodiment, the second terminal device is a terminal device that needs to perform data transmission, and the first terminal device is a terminal device that indicates resources to the second terminal device.

The second terminal device may receive indication information sent by the first terminal device, where the indication information is used to indicate the first resource.

In one possible implementation, the first terminal device may indicate, for the second terminal device, the first resource that the second terminal device is allowed to use, or may be understood as the proposed use;

in another possible implementation, the first terminal device may indicate, for the second terminal device, that the first resource is not allowed to be used by the second terminal device, or may be understood as not being suggested for use.

The embodiment does not particularly limit the specific implementation manner of the first resource indicated by the first terminal device, and may specifically depend on the implementation of the first terminal device.

And S502, the second terminal device determines an auxiliary link transmission resource of the second terminal device according to the first resource, wherein the auxiliary link transmission resource is used for data transmission between the second terminal device and other terminal devices.

After the second terminal device receives the indication information, the secondary link transmission resource of the second terminal device for data transmission may be determined according to the first resource indicated by the indication information.

In a possible implementation manner, if the first resource is a resource that the first terminal device allows the second terminal device to use, the second terminal device may determine, for example, that the secondary link transmission resource is the first resource, so as to perform data transmission on the first resource;

in another possible implementation manner, if the first resource is a resource that the first terminal device does not allow the second terminal device to use, the second terminal device may, for example, exclude the first resource, so as to select a resource other than the first resource, where a specific implementation manner of the selection may refer to an existing one, which is not particularly limited in this embodiment, and at this time, the second terminal device may determine the resource selected other than the first resource as the secondary link transmission resource, so as to perform data transmission on the resource other than the first resource.

In this embodiment, the secondary link transmission resource determined by the second terminal device according to the indication information is used for data transmission with other terminal devices, and the other terminal devices are terminal devices that perform data transmission with the second terminal device and may be any terminal device other than the second terminal device.

In a possible implementation manner, the other terminal device may be one or more indicated terminal devices, for example, the other terminal device is currently determined to be the first terminal device, and then the indication information sent by the first terminal device is used to indicate that the second terminal device allows or disallows the resource to be used when performing data transmission with the first terminal device, it may be understood that the first resource indicated by the indication information is only valid for the first terminal device, for example, a third terminal device currently exists, and then the first resource indicated by the indication information is invalid for the third terminal device.

Or, the other terminal device may also be a third terminal device, that is, a terminal device other than the first terminal device and the second terminal device, which is implemented in a manner similar to that described above, except that the first resource indicated by the current terminal device is only valid for the third terminal device, and specifically, the resource allowed to be used or not allowed to be used when the first terminal device performs data transmission with the third terminal device, and when the terminal device other than the first terminal device and the third terminal device performs communication, the first resource indicated by the current indication information does not need to be referred to.

Or, the indication information may not specifically indicate the terminal device, and at this time, the other terminal device is any terminal device except the second terminal device, that is, no matter which terminal device the second terminal device communicates with, the first resource indicated by the current indication information needs to be referred to.

The embodiment does not particularly limit the specific implementation manner of other terminal devices, and may perform corresponding selection according to actual requirements.

In this embodiment, the second terminal device determines, by receiving the indication information sent by the first terminal device, the auxiliary link transmission resource for performing data transmission with other terminal devices according to the first resource indicated by the indication information, so that the problem of hidden nodes and the problem of half-duplex can be effectively avoided.

For example, for the hidden node problem, it is assumed that the current first terminal device is another terminal device, and the second terminal device and the third terminal device are hidden nodes with each other, then the second terminal device and the third terminal device cannot perceive each other, and may send data to the first terminal device at the same time.

And aiming at the half-duplex problem, the second terminal equipment determines the auxiliary link transmission resource according to the indication information by receiving the indication information sent by the first terminal equipment, so that the problem that the second terminal equipment cannot eliminate the reserved resources of other terminal equipment in the resource selection window aiming at the time slot in which the half-duplex occurs can be effectively avoided.

The method for processing the auxiliary link resource provided by the embodiment of the application comprises the following steps: and the second terminal equipment receives indication information sent by the first terminal equipment, wherein the indication information is used for indicating the first resource. And the second terminal equipment determines the auxiliary link transmission resource of the second terminal equipment according to the first resource, wherein the auxiliary link transmission resource is used for data transmission between the second terminal equipment and other terminal equipment. The second terminal device determines the auxiliary link transmission resource for data transmission with other terminal devices according to the first resource indicated by the indication information by receiving the indication information sent by the first terminal device, so that the problems of hidden nodes and half-duplex can be effectively avoided, the resource collision is avoided, and the transmission reliability is improved.

On the basis of the foregoing embodiment, the following further details an embodiment of the present application in different cases, in this embodiment, the above-described other terminal device may be, for example, the above-described first terminal device, or may also be a third terminal device, or may also be an unspecified terminal device, and in this embodiment, the second terminal device may perform unicast communication or may also perform multicast communication, and then the corresponding other terminal device may be one terminal device or may also be multiple terminal devices, which is described below separately for various possible implementation manners.

First, a description is given to an implementation manner of performing unicast communication between a second terminal device and a first terminal device with reference to fig. 6, where fig. 6 is a schematic implementation diagram of performing unicast communication between the second terminal device and the first terminal device according to an embodiment of the present application.

In this embodiment, the second terminal device and the first terminal device perform unicast communication, referring to fig. 6, the first terminal device may receive the secondary link data sent by the second terminal device, and the first terminal device may send indication information to the second terminal device to indicate a set of first resources.

The first resource may be a resource set expected to be used by the second terminal device when the second terminal device sends the secondary link data to the first terminal device, or may be a resource set that the first terminal device does not expect to be used by the second terminal device. Therefore, this embodiment mainly solves the hidden node problem encountered when the second terminal device communicates with the first terminal device, and in this embodiment, the other terminal devices are limited to the first terminal device.

In a possible implementation manner, the indication information in this embodiment may be secondary link control information (SCI), and an implementation manner in which the indication information in this embodiment is SCI is described below.

Specifically, the first terminal device indicates the first resource through the SCI, where the SCI may include, for example, a first indication field, where the first indication field is used to indicate information of other terminal devices.

In a possible implementation manner, the value of the first indication field may be obtained according to an identifier of the first terminal device.

In the current embodiment, the other terminal device is a first terminal device, the first terminal device may set the value of the first indication field to M bits of a source (source) layer two identifier (layer-2ID) or a destination (destination) layer two identifier (Most Significant Bit, MSB) or a low Bit (Least Significant Bit, LSB) of the first terminal device, where M is an integer greater than or equal to 1, and M ranges from 1 to 24.

That is, when the indication information is the SCI and the other terminal device is the first terminal device, the value of the first indication field in the SCI may be any one of:

m high bits of source layer two identification of the first terminal equipment; alternatively, the first and second electrodes may be,

m high bits of a destination layer two identifier of the first terminal equipment; alternatively, the first and second electrodes may be,

m low-bit bits of source layer two identification of the first terminal equipment; alternatively, the first and second electrodes may be,

m low bits of the destination layer two identification of the first terminal device.

In an actual implementation process, which implementation manner the value of the first indication field is specifically set to may depend on the selection of the first terminal device, and this embodiment does not particularly limit this.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is the first terminal device by reading the first indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the first terminal device perform data transmission.

It can be understood that, in the implementation manner that the indication information is SCI, because SCI is physical layer signaling, in order to improve reliability of signaling, it is desirable that the number of bits of SCI is as small as possible, in this embodiment, specifically, M bits of the identifier of the first terminal device are taken as values of the first indication field, because the second terminal device needs to communicate with the first terminal device, and therefore, the first terminal device can be determined only according to the M bits.

In another possible implementation manner, the value of the first indication field may be a state value of X bits, where X is an integer greater than or equal to 1.

It is understood that the current first indication field includes X bits of information, and has a total of 2^XState value of (2): first state value, second state value, third state value, … …, 2nd state value^XStatus values, wherein each status value may indicate one other terminal device.

Assuming that the current first state value is used to indicate that the other terminal devices include the first terminal device, the first terminal device may set a value of the first indication field as the first state value, for example, in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

In the two possible implementation manners of the foregoing introduced SCI value, the indication information may adopt a two-stage auxiliary link control information format, that is, the first-stage auxiliary link control information (1st stage SCI) and the second-stage auxiliary link control information (2nd stage SCI) indicate the first resource. At this time, the first indication field may be included in the second stage secondary link control information format.

Alternatively, the indication information may also adopt a single-stage secondary link control information format, in which case the first indication field is included in the single-secondary link control information format.

In this embodiment, the indication information may further include a resource location indication field, where the resource location indication field is used to indicate a time-frequency domain location where the first resource is located.

And, the indication information may further include a source (source) layer one identifier (layer-1ID) of the first terminal device and a destination (destination) layer one identifier (layer-1ID) of the second terminal device, for indicating that the current indication information is sent by the first terminal device to the second terminal device.

In another possible implementation, the indication information may be a higher layer signaling, where the higher layer signaling may be, for example, a Media Access Control Element (MAC CE) or a Radio Resource Control (RRC), and is carried by a Physical downlink Shared Channel (psch).

Specifically, the first terminal device indicates the first resource through higher layer signaling, where the higher layer signaling may include, for example, a second indication field, where the second indication field is used to indicate information of other terminal devices.

In a possible implementation manner, the value of the second indication field may be obtained according to the identifier of the first terminal device.

In the current embodiment, if the other terminal device is the first terminal device, the first terminal device may set the value of the first indication field to be the source layer two identifier or the destination layer two identifier (layer-2ID) of the first terminal device, which indicates that the current other terminal device is the first terminal device.

That is, when the indication information is higher layer signaling and the other terminal device is the first terminal device, the value of the second indication field in the higher layer signaling may be any one of the following:

source layer two identification of the first terminal equipment; alternatively, the first and second electrodes may be,

and the destination layer two identifier of the first terminal equipment.

When receiving the high-level signaling sent by the first terminal device, the second terminal device may determine that the other terminal device is the first terminal device by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the first terminal device perform data transmission.

It can be understood that, in the implementation mode where the indication information is the higher layer signaling, since the higher layer signaling is carried by a data channel, there is no special requirement for the number of bits, and at this time, in order to improve the performance, a complete layer two identifier may be included in the second indication field of the higher layer signaling.

In another possible implementation manner, the value of the second indication field may be a state value of X bits, where X is an integer greater than or equal to 1.

It will be appreciated that the current second indication field comprises X bits of information, having a total of 2^XState value of (2): first state value, second state value, third state value, … …, 2nd state value^XStatus values, wherein each status value may indicate one other terminal device.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is the first terminal device by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the first terminal device perform data transmission.

It can be understood that, in this embodiment, the second terminal device refers to the first resource indicated by the indication information only when transmitting the secondary link data with the first terminal device, and does not need to refer to the current indication information when transmitting with a terminal device other than the first terminal device.

In summary, in this embodiment, the second terminal device and the first terminal device perform unicast communication, and the first terminal device sends the indication information to the second terminal device to indicate the first resource, so as to indicate that, when the second terminal device and the first terminal device perform communication, the resource that the second terminal device uses is expected or the resource that the second terminal device does not use is not expected.

Next, with reference to fig. 7, a description is given of an implementation manner of performing multicast communication on a terminal device group corresponding to a second terminal device and a first terminal device, where fig. 7 is a schematic diagram of implementation when the terminal device group of the second terminal device and the first terminal device performs multicast communication according to an embodiment of the present application.

In this embodiment, the second terminal device performs multicast communication with a terminal device group corresponding to the first terminal device, referring to fig. 7, the terminal device group may include, for example, a first terminal device 1, a first terminal device 2, and a first terminal device 3, where each first terminal device in the first terminal device group may receive auxiliary link data sent by the second terminal device, and one or more first terminal devices in the first terminal device group may send indication information to the second terminal device respectively to indicate a group of first resources.

The first resource may be a resource set expected to be used by the second terminal device when the second terminal device sends the secondary link data to the terminal device group corresponding to the first terminal device, or may be a resource set that the first terminal device does not expect to be used by the second terminal device. Therefore, in this embodiment, the problem of hidden nodes when the second terminal device communicates with the terminal device group corresponding to the first terminal device is mainly solved, and in this embodiment, the other terminal devices are limited to the terminal device group corresponding to the third terminal device.

In a possible implementation manner, the indication information in this embodiment may be SCI, and the implementation manner that the indication information in this embodiment is SCI is described below.

Specifically, the first terminal device indicates the first resource through the SCI, where the SCI may include, for example, a first indication field, where the first indication field is used to indicate information of other terminal devices, and in the current implementation, the first terminal device that sends the first resource may be any first terminal device in the first terminal device group.

In a possible implementation manner, the value of the first indication field may be obtained according to a group identifier of the first terminal device group.

In the present embodiment, assuming that the first terminal device corresponds to the first terminal device group, and the other terminal devices are terminal devices in the first terminal device group, the first terminal device may set the value of the first indication field to M bits of high-order bits (MSB) or low-order bits (LSB) of a group (group) layer two identifier (layer-2ID) for multicast communication by the first terminal device group. The value range of M is 1-24.

That is, when the indication information is the SCI and the other terminal devices are terminal devices in the first terminal device group, the value of the first indication field in the SCI may be any one of the following:

m high bits of a group layer two identifier of the first terminal equipment group; alternatively, the first and second electrodes may be,

m low bits of the group level two identifier of the first group of terminal devices.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the first terminal device group by reading the first indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the first terminal device group perform data transmission.

It can be understood that, in the implementation manner that the indication information is SCI, because SCI is physical layer signaling, in order to improve reliability of signaling, it is desirable that the number of bits of SCI is as small as possible, in this embodiment, specifically, M bits of the group identifier of the first terminal device group are taken as values of the first indication field, because the second terminal device needs to communicate with the first terminal device group, and therefore, the first terminal device group can be determined only according to the M bits.

Assuming that the current first state value is used to indicate that the other terminal devices include a terminal device in the first terminal device group, the first terminal device may set a value of the first indication field as the first state value, for example, in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

In another possible implementation manner, the indication information may also be higher layer signaling, where the higher layer signaling may be, for example, MAC CE or RRC and is carried by psch.

Assuming that the first terminal device corresponds to the fourth terminal device group in this embodiment, the second terminal device and the fourth terminal device group perform multicast communication currently.

In a possible implementation manner, the value of the second indication field may be obtained according to the group identifier of the fourth terminal device group.

In the current embodiment, if the other terminal device is the first terminal device in the fourth terminal device group, the first terminal device may set the value of the first indication field as a group layer two identifier for performing multicast communication with the fourth terminal device group, which indicates that the current other terminal device is the terminal device in the fourth terminal device group.

That is, when the indication information is higher layer signaling and the other terminal devices are terminal devices in the fourth terminal device group, the value of the second indication field in the higher layer signaling may be:

and the group layer two identifier of the fourth terminal equipment group.

When receiving the high-level signaling sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the fourth terminal device group by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the fourth terminal device group perform data transmission.

Assuming that the current first state value is used to indicate that the other terminal devices include the device group corresponding to the first terminal device, the first terminal device may set a value of the first indication field as the first state value, for example, in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the fourth terminal device group by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the fourth terminal device group perform data transmission.

It can be understood that, in this embodiment, the second terminal device refers to the first resource indicated by the indication information only when the terminal device group corresponding to the first terminal device transmits the secondary link data, and does not need to refer to the current indication information when the terminal devices other than the device group corresponding to the first terminal device perform transmission.

It should be noted that the terminal device group in this embodiment may include a plurality of first terminal devices, where each first terminal device may send indication information to a second terminal device, and each first terminal device may indicate a respective first resource, so that when the second terminal device performs multicast communication with a device group corresponding to the first terminal device, the second terminal device needs to refer to the first resource sent by each first terminal device, for example, when the first terminal device 1 indicates that data transmission cannot be performed on the resource a, and the first terminal device 2 indicates that data transmission cannot be performed on the resource B, the second terminal device cannot perform transmission on both the resource a and the resource B when data transmission is performed with the terminal device group corresponding to the first terminal device.

In summary, in this embodiment, the second terminal device performs multicast communication with the terminal device group corresponding to the first terminal device, and the first terminal device sends the indication information to the second terminal device to indicate the first resource, so as to indicate that when the second terminal device communicates with the terminal device group corresponding to the first terminal device, the resource that the second terminal device uses is expected or the resource that the second terminal device does not use is not expected.

Next, a description is given to an implementation manner of performing unicast communication between the second terminal device and the third terminal device with reference to fig. 8, where fig. 8 is a schematic implementation diagram of performing unicast communication between the second terminal device and the third terminal device according to the embodiment of the present application.

In this embodiment, the second terminal device and the third terminal device perform unicast communication, referring to fig. 8, the third terminal device may receive the secondary link data sent by the second terminal device, and the first terminal device may send indication information to the second terminal device to indicate a group of the first resources.

In this embodiment, the third terminal device is a different terminal device from the second terminal device, and the specific middle wing of the third terminal device may be selected according to actual requirements, which is not limited in this embodiment.

The first resource may be a resource set that the first terminal device proposes to use according to a sensing result of the first terminal device when the second terminal device sends the auxiliary link data to the third terminal device, or a resource set that the first terminal device does not propose to use. Therefore, the present embodiment mainly solves the hidden node problem encountered when the second terminal device communicates with the third terminal device, and in the present embodiment, the other terminal devices are limited to the third terminal device.

In a possible implementation manner, the value of the first indication field may be obtained according to an identifier of the third terminal device.

In the current embodiment, the other terminal device is a third terminal device, the first terminal device may set the value of the first indication field to M bits of a source (source) layer two identifier (layer-2ID) or a destination (destination) layer two identifier (Most Significant Bit, MSB) or a low Bit (Least Significant Bit, LSB) of the third terminal device, where M is an integer greater than or equal to 1, and M ranges from 1 to 24.

The source layer two identifier or the destination layer two identifier of the third terminal device may be notified to the first terminal device by the second terminal device in advance.

That is, when the indication information is the SCI and the other terminal device is the third terminal device, the value of the first indication field in the SCI may be any one of:

m high bits of source layer two identifier of the third terminal device; alternatively, the first and second electrodes may be,

m high bits of a destination layer two identifier of the third terminal equipment; alternatively, the first and second electrodes may be,

m low-bit bits of source layer two identification of the third terminal equipment; alternatively, the first and second electrodes may be,

the M low bits of the destination layer two identification of the third terminal device.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is the third terminal device by reading the first indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the third terminal device perform data transmission.

It can be understood that, in the implementation manner that the indication information is SCI, because SCI is physical layer signaling, in order to improve reliability of signaling, it is desirable that the number of bits of SCI is as small as possible, in this embodiment, specifically, M bits of the identifier of the first terminal device are taken as values of the first indication field, because the second terminal device needs to communicate with the third terminal device, and therefore, the third terminal device can be determined only according to the M bits.

Assuming that the current second state value is used to indicate that the other terminal devices include a third terminal device, the first terminal device may set the value of the first indication field as the second state value, for example, in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

In a possible implementation manner, the value of the second indication field may be obtained according to an identifier of the third terminal device.

In the current embodiment, if the other terminal device is the third terminal device, the first terminal device may set the value of the first indication field to be the source layer two identifier or the destination layer two identifier (layer-2ID) of the third terminal device, which indicates that the current other terminal device is the third terminal device.

That is, when the indication information is higher layer signaling and the other terminal device is a third terminal device, the value of the second indication field in the higher layer signaling may be any one of the following:

source layer two identification of the third terminal equipment; alternatively, the first and second electrodes may be,

and destination layer two identification of the third terminal equipment.

When receiving the high-level signaling sent by the first terminal device, the second terminal device may determine that the other terminal device is the third terminal device by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the third terminal device perform data transmission.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is the third terminal device by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the third terminal device perform data transmission.

It can be understood that, in this embodiment, the second terminal device refers to the first resource indicated by the indication information only when transmitting the secondary link data with the third terminal device, and does not need to refer to the current indication information when transmitting with a terminal device other than the third terminal device.

In summary, in this embodiment, the second terminal device and the third terminal device perform unicast communication, and the first terminal device sends the indication information to the second terminal device to indicate the first resource, so as to indicate that when the second terminal device and the third terminal device perform communication, the first terminal device recommends the resource used by the second terminal device or does not recommend the resource used by the second terminal device according to the sensing result, and through the indication of the first terminal device, the problem of hidden nodes that may be encountered when the second terminal device performs data transmission can be effectively avoided, so that resource collision is effectively avoided, and the reliability of transmission is improved.

Next, a description is given to an implementation manner of performing multicast communication on a terminal device group corresponding to a second terminal device and a third terminal device with reference to fig. 9, where fig. 9 is a schematic diagram of implementation when the terminal device group of the second terminal device and the third terminal device performs multicast communication according to an embodiment of the present application.

In this embodiment, the second terminal device performs multicast communication with a terminal device group corresponding to a third terminal device, referring to fig. 9, the terminal device group may include, for example, a third terminal device 1, a third terminal device 2, and a third terminal device 3, where each third terminal device of the terminal device group may receive auxiliary link data sent by the second terminal device, and the first terminal device may send indication information to the second terminal device to indicate a group of first resources.

The first resource may be a resource set that the first terminal device proposes to use by the second terminal device when the second terminal device sends the auxiliary link data to the terminal device group corresponding to the third terminal device, or a resource set that the first terminal device does not propose to use by the second terminal device. Therefore, in this embodiment, the problem of hidden nodes when the second terminal device communicates with the terminal device group corresponding to the third terminal device is mainly solved, and in this embodiment, the other terminal devices are limited to the terminal device group corresponding to the third terminal device.

In the present embodiment, assuming that the third terminal device corresponds to the second terminal device group, and the other terminal devices are terminal devices in the second terminal device group, the first terminal device may set the value of the first indication field to M bits of a high-order bit (MSB) or a low-order bit (LSB) of a group layer two identifier of the second terminal device group for performing multicast communication. The value range of M is 1-24.

The group layer two identifier for multicast communication between the second terminal device and the terminal device group of the third terminal device may be notified to the first terminal device by the second terminal device in advance.

That is, when the indication information is the SCI and the other terminal device is a third terminal device in the second terminal device group, the value of the first indication field in the SCI may be any one of the following:

m high bits of a group layer two identifier of a second terminal equipment group; alternatively, the first and second electrodes may be,

m low-bit bits of the group level two identification of the second group of terminal devices.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the second terminal device group by reading the first indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the second terminal device group perform data transmission.

It can be understood that, in the implementation manner that the indication information is SCI, because SCI is physical layer signaling, in order to improve reliability of signaling, it is desirable that the number of bits of SCI is as small as possible, in this embodiment, specifically, M bits of the group identifier of the first terminal device group are taken as values of the first indication field, because the second terminal device needs to communicate with the second terminal device group, and therefore, the second terminal device group can be determined only according to the M bits.

Assuming that the current second state value is used to indicate that the other terminal devices include a terminal device in the second terminal device group, the first terminal device may set the value of the first indication field as the second state value, for example, and in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

Assuming that the third terminal device corresponds to the third terminal device group in this embodiment, the current second terminal device performs multicast communication with the third terminal device group.

In a possible implementation manner, the value of the second indication field may be obtained according to a group identifier of the third terminal device group.

In the current embodiment, if the other terminal device is a third terminal device in the third terminal device group, the first terminal device may set the value of the first indication field as a group layer two identifier for performing multicast communication with the third terminal device group, which indicates that the current other terminal device is a terminal device in the third terminal device group.

That is, when the indication information is higher layer signaling and the other terminal devices are terminal devices in the third terminal device group, the value of the second indication field in the higher layer signaling may be:

and the group layer two identifier of the third terminal equipment group.

When receiving the high-level signaling sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the third terminal device group by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the third terminal device group perform data transmission.

Assuming that the current second state value is used to indicate that the other terminal devices include a device group corresponding to the third terminal device, the first terminal device may set the value of the first indication field as the second state value, for example, in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

When receiving the indication information sent by the first terminal device, the second terminal device may determine that the other terminal device is a terminal device in the third terminal device group by reading the second indication field, and may determine the required auxiliary link transmission resource according to the first resource indicated by the indication information when the second terminal device and the terminal device in the third terminal device group perform data transmission.

It can be understood that, in this embodiment, the second terminal device refers to the first resource indicated by the indication information only when the terminal device group corresponding to the third terminal device transmits the secondary link data, and does not need to refer to the current indication information when the terminal devices other than the device group corresponding to the third terminal device perform transmission.

In summary, in this embodiment, the second terminal device and the terminal device group corresponding to the third terminal device perform multicast communication, and the first terminal device sends the indication information to the second terminal device to indicate the first resource, so as to indicate that the resource used by the second terminal device is recommended or not recommended when the terminal device group corresponding to the second terminal device and the third terminal device performs communication.

In another possible implementation manner of the present application, the indication information may not indicate other terminal devices, which indicates that the second terminal device needs to refer to the first resource indicated by the current indication information no matter which terminal device performs data transmission with.

For example, the present embodiment can be understood by combining fig. 8, fig. 9, and fig. 10, where fig. 10 is a schematic diagram of implementing broadcast communication by the second terminal device according to the embodiment of the present application.

In the present embodiment, the second terminal device performs unicast (see fig. 8), multicast (see fig. 9) or broadcast communication (see fig. 10) with respect to other terminal device (group) other than the first terminal device.

The other terminal device may receive the secondary link data sent by the second terminal device and the first terminal device may send indication information to the second terminal device to indicate the set of first resources.

The first resource may be a resource set that the first terminal device proposes to be used by the second terminal device, or a resource set that the first terminal device does not propose to be used by the second terminal device, without limiting a specific other terminal device (group) when the second terminal device sends the secondary link data to the other terminal device. Therefore, the present embodiment mainly solves the problem that the second terminal device is limited in resource sensing due to the half-duplex problem, and therefore, specific other terminal devices are not specified in the present embodiment.

In a possible implementation manner, the value of the first indication field may be that the first terminal device sets the value of the field to a fixed value of M bits, such as M full 0 s or M full 1s, or a specific value of M bits, and the value range of M is 1 to 24.

That is, when the indication information is SCI and no specific other terminal device is specified, the value of the first indication field in the SCI may be: a first preset value of M bits, wherein M is an integer greater than or equal to 1.

In an actual implementation process, a specific implementation manner of the first preset value may be selected according to an actual requirement, which is not particularly limited in this embodiment.

When receiving the indication information sent by the first terminal device, the second terminal device can determine that no other specified terminal device is the first terminal device by reading the first indication field, and when performing data transmission with the second terminal device and other terminal devices, the second terminal device can determine the required auxiliary link transmission resource according to the first resource indicated by the indication information.

It can be understood that, in the implementation mode where the indication information is SCI, since SCI is physical layer signaling, in order to improve reliability of signaling, it is desirable that the number of bits of SCI is as small as possible, and therefore, in this embodiment, a first preset value of M bits is specifically taken as a value of the first indication field.

Assuming that the current third state value is used to indicate that no other terminal device is designated, the first terminal device may set the value of the first indication field as the third state value, for example, and in an actual implementation process, a specific implementation manner of each state value may be selected according to an actual requirement, which is not particularly limited herein.

When receiving the indication information sent by the first terminal device, the second terminal device can determine that other terminal devices are not specified currently by reading the first indication field, and when performing data transmission with the second terminal device and the other terminal devices, the second terminal device can determine the required auxiliary link transmission resources according to the first resources indicated by the indication information.

In a possible implementation manner, the value of the second indication field may be that the first terminal device sets the value of the field to a fixed value of R bits, such as R all 0 s or all 1s, or a specific value of R bits, where R is the bit number of the second indication field.

That is, when the indication information is higher layer signaling and no other terminal device is specified, the value of the second indication field in the higher layer signaling may be: a second preset value of R bits.

When receiving the high-level signaling sent by the first terminal device, the second terminal device can determine that other terminal devices are not currently specified by reading the second indication field, and when the second terminal device and the other terminal devices perform data transmission, the second terminal device and the other terminal devices can determine the required auxiliary link transmission resources according to the first resources indicated by the indication information.

It can be understood that, in the implementation manner that the indication information is the higher layer signaling, since the higher layer signaling is carried by the data channel, there is no special requirement for the number of bits, and at this time, in order to improve the performance, the bits in the second indication field of the higher layer signaling may be all set to the second preset value.

When receiving the indication information sent by the first terminal device, the second terminal device can determine that other terminal devices are not currently specified by reading the second indication field, and when performing data transmission with the second terminal device and the other terminal devices, the second terminal device can determine the required auxiliary link transmission resources according to the first resources indicated by the indication information.

It can be understood that, in this embodiment, since no specific other terminal device is specified, the second terminal device refers to the first resource indicated by the indication information when transmitting the secondary link data with each terminal device.

In summary, in this embodiment, no matter the second terminal device and other terminal devices perform unicast communication, multicast communication, or broadcast communication, the first terminal device sends the indication information to the second terminal device to indicate the first resource, and indicate that no specific other terminal device is currently specified, so as to indicate that when the second terminal device communicates with each other terminal device, the resource that the second terminal device is expected to use or the resource that the second terminal device is not expected to use.

In the above-described embodiments, when the state value is introduced, meanings of the first state value, the second state value, and the third state value are exemplarily introduced, and in an actual implementation process, the remaining state value may be, for example, used as a reserved state for a subsequent function expansion; alternatively, the specific meaning of each state value is not limited to the above description, and may be selected according to actual requirements, which is not limited in this embodiment.

To sum up, in the auxiliary link resource processing method provided in the embodiment of the present application, the second terminal device determines, according to the first resource indicated by the indication information, an auxiliary link transmission resource for performing data transmission with other terminal devices by receiving the indication information sent by the first terminal device, so that a hidden node problem and a half-duplex problem can be effectively avoided, a resource collision is avoided, and transmission reliability is improved.

Fig. 11 is a schematic structural diagram of a secondary link resource processing apparatus according to an embodiment of the present application. As shown in fig. 11, the apparatus 110 includes: a receiving module 1101 and a determining module 1102.

A receiving module 1101, configured to receive, by a second terminal device, indication information sent by a first terminal device, where the indication information is used to indicate a first resource;

a determining module 1102, configured to determine, by the second terminal device, an auxiliary link transmission resource of the second terminal device according to the first resource, where the auxiliary link transmission resource is used for data transmission between the second terminal device and other terminal devices.

wherein M is an integer greater than or equal to 1.

Fig. 12 is a schematic diagram of a hardware structure of a secondary link resource processing device according to an embodiment of the present application, and as shown in fig. 12, a secondary link resource processing device 120 according to this embodiment includes: a processor 1201 and a memory 1202; wherein

A memory 1202 for storing computer-executable instructions;

a processor 1201 for executing the computer executable instructions stored in the memory to implement the steps performed by the secondary link resource processing method in the above embodiments. Reference may be made in particular to the description relating to the method embodiments described above.

Alternatively, the memory 1202 may be separate or integrated with the processor 1201.

When the memory 1202 is separately provided, the secondary link resource processing device further includes a bus 1203 for connecting the memory 1202 and the processor 1201.

An embodiment of the present application further provides a computer-readable storage medium, where a computer executable instruction is stored in the computer-readable storage medium, and when a processor executes the computer executable instruction, the method for processing a secondary link resource, which is executed by the above secondary link resource processing device, is implemented.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.

It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.

The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.

The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.

The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for processing secondary link resources is characterized by comprising the following steps:

2. The method of claim 1, wherein the indication information comprises at least one of the following information: secondary link control information SCI, high level instructions.

3. The method of claim 2, wherein the SCI comprises a first indication field, and wherein the first indication field is used for indicating information of the other terminal devices.

4. The method of claim 3, wherein the second terminal device and the first terminal device are in unicast communication, and the other terminal devices comprise the first terminal device;

wherein M is an integer greater than or equal to 1.

5. The method of claim 3, wherein the second terminal device and a third terminal device perform unicast communication, the third terminal device is a terminal device different from the first terminal device, and the other terminal devices include the third terminal device;

wherein M is an integer greater than or equal to 1.

6. The method according to claim 3, wherein the second terminal device and the first terminal device group corresponding to the first terminal device perform multicast communication, and the other terminal devices include terminal devices in the first terminal device group;

wherein M is an integer greater than or equal to 1.

7. The method according to claim 3, wherein a second terminal device group corresponding to the second terminal device and the third terminal device performs multicast communication, and the other terminal devices include terminal devices in the second terminal device group;

wherein M is an integer greater than or equal to 1.

8. The method of claim 3, wherein the first indication field is used to indicate that the other terminal device is not specified;

9. The method of claim 2, wherein the higher layer signaling comprises a second indication field, and wherein the second indication field is used for indicating information of the other terminal devices.

10. The method of claim 9, wherein the second terminal device and the first terminal device are in unicast communication, and wherein the other terminal devices comprise the first terminal device;

11. The method of claim 9, wherein the second terminal device and a third terminal device perform unicast communication, the third terminal device is a terminal device different from the first terminal device, and the other terminal devices include the third terminal device;

12. The method according to claim 9, wherein the second end device and a third end device group corresponding to the first end device perform multicast communication, and the other end devices include end devices in the third end device group;

13. The method according to claim 9, wherein a fourth terminal device group corresponding to the second terminal device and the third terminal device performs multicast communication, and the other terminal devices include terminal devices in the fourth terminal device group;

14. The method of claim 9, wherein the second indication field is used for indicating that the other terminal device is not specified;

15. The method according to any one of claims 2-14, wherein the value of the indication field is a state value of X bits, wherein X is an integer greater than or equal to 1, and wherein the state value comprises at least any one of the following: a first state value, a second state value, a third state value;

16. The method according to any of claims 1-15, wherein the indication information is two-phase secondary link control information, and the indication field is included in second phase information of the secondary link control information.

17. The method according to any of claims 1-15, wherein the indication information is a single-phase secondary link control information, and wherein the indication field is included in the secondary link control information.

18. The method according to any of claims 1-17, wherein the indication information further includes a resource location indication field, and wherein the resource location indication field is used to indicate a time-frequency domain location where the first resource is located.

19. The method according to any of claims 1-18, wherein the indication information further comprises a source layer one identifier of the first terminal device and a destination layer one identifier of the second terminal device.

20. The method of any one of claims 1 to 19,

the first resource is an auxiliary link transmission resource allowing the second terminal device to perform data transmission; or

21. A secondary link resource processing apparatus, comprising:

22. The apparatus of claim 21, wherein the indication information comprises at least one of: secondary link control information SCI, high level instructions.

23. The apparatus of claim 22, wherein the SCI comprises a first indication field, and wherein the first indication field is used for indicating information of the other terminal devices.

24. The apparatus of claim 23, wherein the second terminal device and the first terminal device are in unicast communication, and wherein the other terminal devices comprise the first terminal device;

wherein M is an integer greater than or equal to 1.

25. The apparatus of claim 23, wherein the second terminal device and a third terminal device perform unicast communication, the third terminal device is a terminal device different from the first terminal device, and the other terminal devices include the third terminal device;

wherein M is an integer greater than or equal to 1.

26. The apparatus according to claim 23, wherein the second end device performs multicast communication with a first end device group corresponding to the first end device, and the other end devices include end devices in the first end device group;

wherein M is an integer greater than or equal to 1.

27. The apparatus according to claim 23, wherein a second terminal device group corresponding to the second terminal device and the third terminal device performs multicast communication, and the other terminal devices include terminal devices in the second terminal device group;

wherein M is an integer greater than or equal to 1.

28. The apparatus of claim 23, wherein the first indication field is used to indicate that the other terminal device is not specified;

29. The apparatus of claim 22, wherein the higher layer signaling comprises a second indication field, and wherein the second indication field is used for indicating information of the other terminal devices.

30. The apparatus of claim 29, wherein the second terminal device is in unicast communication with the first terminal device, and wherein the other terminal devices comprise the first terminal device;

31. The apparatus of claim 29, wherein the second terminal device and a third terminal device perform unicast communication, the third terminal device is a terminal device different from the first terminal device, and the other terminal devices include the third terminal device;

32. The apparatus according to claim 29, wherein the second end device and a third end device group corresponding to the first end device perform multicast communication, and the other end devices include end devices in the third end device group;

33. The apparatus according to claim 29, wherein a fourth terminal device group corresponding to the second terminal device and the third terminal device performs multicast communication, and the other terminal devices include terminal devices in the fourth terminal device group;

34. The apparatus of claim 29, wherein the second indication field is used for indicating that the other terminal device is not specified;

35. The apparatus according to any of claims 22-34, wherein the value of the indication field is a state value of X bits, wherein X is an integer greater than or equal to 1, and wherein the state value comprises at least any one of: a first state value, a second state value, a third state value;

36. The apparatus of any of claims 21-35, wherein the indication information is two-phase secondary link control information, and wherein the indication field is included in second phase information of the secondary link control information.

37. The apparatus of any of claims 21-35, wherein the indication information is single-phase secondary link control information, and wherein the indication field is included in the secondary link control information.

38. The apparatus according to any of claims 21-37, wherein the indication information further includes a resource location indication field, and wherein the resource location indication field is used to indicate a time-frequency domain location where the first resource is located.

39. The apparatus according to any of claims 21-38, wherein the indication information further comprises a source layer one identifier of the first terminal device and a destination layer one identifier of the second terminal device.

40. The apparatus of any one of claims 21-39,

41. A secondary link resource processing device, comprising:

a memory for storing a program;

a processor for executing the program stored by the memory, the processor being configured to perform the method of any of claims 1 to 20 when the program is executed.

42. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 20.