CN117528398A

CN117528398A - Side-link communication method and related device

Info

Publication number: CN117528398A
Application number: CN202210901647.6A
Authority: CN
Inventors: 朱宁波; 郝金平; 黄甦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2024-02-06
Also published as: WO2024022373A1

Abstract

The embodiment of the application discloses a side-link communication method and a related device, and the method provided by the embodiment of the application comprises the following steps: the method comprises the steps that a first terminal device sends identification information of the first terminal device to a positioning management device, wherein the identification information of the first terminal device is used for identifying the first terminal device in positioning and/or ranging processes of other terminal devices; the first terminal device receives a side-link message from a second terminal device, the side-link message including identification information of the first terminal device. The identification of the second terminal device to the first terminal device is realized, so that the side uplink positioning and/or ranging between the first terminal device and the second terminal device can be conveniently realized. The identification information of a first one of the second terminal devices may be provided by the positioning management device to the second terminal device, thereby supporting the positioning management device to initiate or assist a side-link positioning and/or ranging between the first terminal device and the second terminal device.

Description

Side-link communication method and related device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a side downlink communication method and a related device.

Background

The terminal devices may interface with each other through proximity communication 5 (ProSe communication, pc 5) and communicate through Sidelink (SL). For example, the terminal device 1 transmits a signal to the terminal device 2 through the side-link. However, how to trigger positioning measurements and/or ranging between two terminal devices on the sidelink is a considerable problem.

Disclosure of Invention

The application provides a side-link communication method and a related device, which are used for a second terminal device to identify a first terminal device, so that side-link positioning and/or ranging between the first terminal device and the second terminal device can be conveniently realized.

A first aspect of the present application provides a method of side-uplink communication, comprising:

the first terminal device sends identification information of the first terminal device to the positioning management device, wherein the identification information of the first terminal device is used for identifying the first terminal device in the positioning and/or ranging process of other terminal devices. The first terminal device then receives a side-link message from the second terminal device, the side-link message including identification information of the first terminal device.

In the above technical solution, the first terminal device may report the identification information of the first terminal device to the positioning management device. The identification information of the first terminal device is used for identifying the first terminal device in the positioning and/or ranging procedure by other terminal devices. The first terminal device receives a side-link message from the second terminal device, the side-link message including identification information of the first terminal device. The identification information of the first terminal equipment on the second terminal equipment is provided for the second terminal equipment by the positioning management equipment, so that the second terminal equipment can identify the first terminal equipment, and side uplink positioning and/or ranging between the first terminal equipment and the second terminal equipment can be conveniently realized. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

A second aspect of the present application provides a side-uplink communication method, including:

the method comprises the steps that a first terminal device determines identification information of the first terminal device, wherein the identification information of the first terminal device is used for finding the first terminal device by the terminal device on a side link where the first terminal device is located; the first terminal device sends the identification information of the first terminal device to the positioning management device.

In the above technical solution, the first terminal device may report the identification information of the first terminal device to the positioning management device. The identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device. Thereby facilitating that when the positioning management device makes a request for the side-link positioning of the first terminal device to the second terminal device, the request can contain the identification information of the first terminal device. Thereby triggering the second terminal device to identify and discover the first terminal device. Thereby enabling side-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the first aspect or the second aspect, in one possible implementation manner, before the first terminal device sends the identification information of the first terminal device to the positioning management device, the method further includes:

The first terminal equipment receives a first request from the positioning management equipment, wherein the first request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment.

In this implementation manner, when the positioning management device has a positioning requirement on the first terminal device, the positioning management device may actively request the first terminal device to report the identification information of the first terminal device. Therefore, when the positioning management device issues the positioning request to the second terminal device, the positioning management device can carry the identification information of the first terminal device in the positioning request. Thereby triggering the second terminal device to discover or identify the first terminal device. Thereby enabling side-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the first aspect or the second aspect, in one possible implementation manner, the first request further includes first indication information, where the first indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier (layer-2 ID) or an application layer identifier (application layer ID).

In this implementation manner, the first request further carries first indication information, which is used for indicating the identification type reported by the first terminal device, so that the positioning management device requests the second terminal device to perform side uplink positioning and/or ranging. Further, the identification types comprise layer 2 identification or application layer identification, so that a plurality of possible identification types are provided, and implementation of the scheme is facilitated. The second terminal device can realize the discovery or identification of the first terminal device through the layer 2 identification or the application layer identification.

the first terminal equipment receives a second request sent by the second terminal equipment, wherein the second request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment.

In this implementation manner, when the second terminal device has a positioning requirement, the second terminal device may request the first terminal device to report the identification information of the first terminal device to the positioning management device, so as to facilitate triggering the positioning management device to request the first terminal device to perform side uplink positioning and/or ranging with the second terminal device.

Based on the first aspect or the second aspect, in one possible implementation manner, the second request further includes second indication information, where the second indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

In this implementation manner, the second request further includes second indication information, which is used to indicate the type of the identifier reported by the first terminal device, so that the positioning management device requests the second terminal device to perform side-link positioning and/or ranging. Further, the identification types comprise layer 2 identification or application layer identification, so that a plurality of possible identification types are provided, and implementation of the scheme is facilitated. The second terminal device can realize the discovery or identification of the first terminal device through the layer 2 identification or the application layer identification.

Based on the second aspect, in one possible implementation manner, the method further includes:

the first terminal device receives a side-link message from the second terminal device, the side-link message including identification information of the first terminal device.

In this implementation, the first terminal device monitors the side-link message, and when it is monitored that the side-link message sent by the second terminal device includes identification information of the first terminal device, the first terminal device may determine that the side-link message is addressed to the first terminal device. Thus, the first terminal device may receive the side-link message sent by the second terminal device to enable the second terminal device to discover or identify the first terminal device.

Based on the first aspect or the second aspect, in a possible implementation manner, the method further includes:

the method comprises the steps that a first terminal device establishes a side uplink connection with a second terminal device; the first terminal device performs side-link positioning and/or ranging with the second terminal device.

In this implementation, the first terminal device may establish a sidelink connection with the second terminal device and perform sidelink positioning and/or ranging through the sidelink between the first terminal device and the second terminal device. Thereby enabling side-link positioning and/or ranging.

the first terminal equipment sends a first measurement result to the positioning management equipment, wherein the first measurement result is obtained by performing side uplink positioning and/or ranging on the first terminal equipment and the second terminal equipment.

In the implementation manner, the first terminal equipment and the second terminal equipment perform side link positioning and/or ranging to obtain a first measurement result, and send the first measurement result to the positioning management equipment. Thereby realizing the positioning measurement of the positioning management device to the first terminal device and/or the second terminal device.

A third aspect of the present application provides a side-uplink communication method, including:

the second terminal equipment receives the identification information of the first terminal equipment from the positioning management equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in the positioning and/or ranging process of other terminal equipment; the second terminal device sends a side-link message to the first terminal device, the side-link message including identification information of the first terminal device.

In the above technical solution, the second terminal device receives the identification information of the first terminal device from the positioning management device. And the identification information of the first terminal device is used for identifying the first terminal device in the positioning and/or ranging process of other terminal devices. Thereby triggering the second terminal device to send a side-link message to the first terminal device, wherein the side-link message comprises the identification information of the first terminal device so as to realize that the second terminal device identifies the first terminal device. Facilitating lateral uplink positioning and/or ranging between the first terminal device and the second terminal device. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

A fourth aspect of the present application provides a side-link communication method, including:

the second terminal equipment receives a third request from the positioning management equipment, wherein the third request is used for requesting the side uplink positioning and/or ranging between the first terminal equipment and the second terminal equipment, the third request comprises the identification information of the first terminal equipment, and the identification information of the first terminal equipment is distributed for the first terminal equipment by the positioning management equipment or reported to the positioning management equipment by the first terminal equipment; the second terminal device sends a side uplink message to the first terminal device, wherein the side uplink message comprises identification information of the first terminal device; the second terminal device establishes a side-link connection with the first terminal device, and side-link positioning and/or ranging is performed between the second terminal device and the first terminal device.

In the above technical solution, the second terminal device receives a third request from the positioning management device, where the third request includes identification information of the first terminal device. Thereby triggering the transmission of a side-link message to the first terminal device, the side-link message comprising the identification information of the first terminal device and establishing a side-link connection with the first terminal device. The second terminal device may then perform side-link positioning and/or ranging based on the side-link with the first terminal device. Side-uplink positioning and/or ranging between the first terminal device and the second terminal device is achieved. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the third aspect or the fourth aspect, in a possible implementation manner, before the second terminal device receives the third request from the positioning management device, the method further includes:

the second terminal device sends a second request to the first terminal device, wherein the second request is used for requesting the first terminal device to report the identification information of the first terminal device to the positioning management device.

Based on the third aspect or the fourth aspect, in one possible implementation manner, the second request further includes second indication information, where the second indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

Based on the third aspect, in a possible implementation manner, the second terminal device receives identification information of the first terminal device from the positioning management device, including:

the second terminal device receives a third request from the positioning management device, the third request comprising identification information of the first terminal device, the third request being for requesting a lateral-link positioning and/or ranging between the first terminal device and the second terminal device.

In this implementation, the second terminal device receives a third request from the positioning management device requesting a side-link positioning and/or ranging between the first terminal device and the second terminal device. The second terminal equipment can perform side-link positioning and/or ranging with the first terminal equipment after the first terminal equipment is identified, so that the positioning management equipment is supported to initiate the side-link positioning and/or ranging between the first terminal equipment and the second terminal equipment.

Based on the third aspect, in one possible implementation manner, the method further includes:

the second terminal device establishes a side uplink connection with the first terminal device; the second terminal device performs side-uplink positioning and/or ranging with the first terminal device.

In this implementation, the second terminal device may establish a sidelink connection with the first terminal device and perform sidelink positioning and/or ranging through the sidelink between the first terminal device and the second terminal device. Thereby enabling side-link positioning and/or ranging.

Based on the third or fourth aspect, in a possible implementation manner, the method further includes:

the second terminal device sends a second measurement result to the positioning management device, wherein the second measurement result is obtained by performing side uplink positioning and/or ranging between the second terminal device and the first terminal device.

In this implementation, the second terminal device performs side uplink positioning and/or ranging with the first terminal device to obtain a second measurement result, and sends the second measurement result to the positioning management device. Thereby realizing the positioning measurement of the positioning management device to the first terminal device and/or the second terminal device.

A fifth aspect of the present application provides a side-uplink communication method, including:

the positioning management equipment determines the identification information of first terminal equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in the positioning and/or ranging process of other terminal equipment; the positioning management device sends the identification information of the first terminal device to the second terminal device.

In the above technical solution, the positioning management device may determine the identification information for identifying the first terminal device in the positioning and/or ranging procedure by other terminal devices. Then, the positioning management apparatus transmits the identification information of the first terminal apparatus to the second terminal apparatus. Thereby facilitating the second terminal device to identify the first terminal device through the identification information of the first terminal device. Facilitating sidelink positioning and/or ranging between the first terminal device and the second terminal device. The method solves the problem that the identification of the first terminal equipment adopted in the identification or matching process between the terminal equipment of the side link is not aligned with the identification of the terminal equipment adopted in the New Radio (NR) positioning process. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

A sixth aspect of the present application provides a side-uplink communication method, including:

the positioning management equipment determines the identification information of the first terminal equipment, wherein the identification information of the first terminal equipment is used for other terminal equipment on a side link where the first terminal equipment is located to find the first terminal equipment; the positioning management device sends a third request to the second terminal device, wherein the third request is used for requesting the side-link positioning and/or ranging between the first terminal device and the second terminal device, and the third request comprises the identification information of the first terminal device.

In the above technical solution, the positioning management device may determine that the other terminal device on the side link where the first terminal device is located discovers the identification information of the first terminal device, and send a third request to the second terminal device, where the third request includes the identification information of the first terminal device. And triggering the first terminal equipment to discover the second terminal equipment, and executing side-link positioning and/or ranging between the first terminal equipment and the second terminal equipment, so as to realize the side-link positioning and/or ranging between the first terminal equipment and the second terminal equipment. The method solves the problem that the identification of the first terminal equipment adopted by the communication flow of the side uplink is not aligned with the identification of the terminal equipment adopted by the New Radio (NR) positioning flow. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the fifth aspect, in a possible implementation manner, the sending, by the positioning management device, identification information of the first terminal device to the second terminal device includes:

the positioning management device sends a third request to the second terminal device, wherein the third request is used for requesting the side-link positioning and/or ranging between the first terminal device and the second terminal device, and the third request comprises the identification information of the first terminal device.

In this implementation, the positioning management device may issue the identification information of the first terminal device through a third request, where the third request is used to request that the side-link positioning and/or ranging be performed between the first terminal device and the second terminal device. Thereby realizing that the positioning management device initiates the side-link positioning and/or ranging between the first terminal device and the second terminal device.

Based on the fifth or sixth aspect, in a possible implementation manner, the method further includes:

the positioning management device receives a first measurement result from the first terminal device and/or a second measurement result from the second terminal device, wherein the first measurement result and/or the second measurement result are obtained by performing side-link positioning and/or ranging between the first terminal device and the second terminal device.

In this implementation, the positioning management device may receive the first measurement result and/or the second measurement result, thereby implementing positioning measurement of the first terminal device and/or the second terminal device by the positioning management device.

Based on the fifth or sixth aspect, in a possible implementation manner, the determining, by the positioning management device, identification information of the first terminal device includes: the positioning management device receives identification information from the first terminal device.

In the above technical solution, the positioning management device may receive the identification information from the first terminal device. The identification information of the first terminal device is used for the first terminal device. Thereby facilitating that when the positioning management device makes a request for the side-link positioning of the first terminal device to the second terminal device, the request can contain the identification information of the first terminal device. Thereby triggering the second terminal device to recognize the first terminal device or triggering the second terminal device to pair with the first terminal device. Facilitating lateral uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the fifth or sixth aspect, in a possible implementation manner, before the positioning management device receives the identification information from the first terminal device, the method further includes:

the positioning management device sends a first request to the first terminal device, wherein the first request is used for requesting the first terminal device to report the identification information of the first terminal device.

In this implementation manner, when the positioning management device has a positioning requirement on the first terminal device, the positioning management device may actively request the first terminal device to report the identification information of the first terminal device. Therefore, when the positioning management device issues the positioning request to the second terminal device, the positioning management device can carry the identification information of the first terminal device in the positioning request. Facilitating lateral uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the fifth or sixth aspect, in one possible implementation manner, the first request further includes first indication information, where the first indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

In this implementation manner, the first request further carries first indication information, which is used for indicating the identification type reported by the first terminal device, so that the positioning management device requests the second terminal device to perform side uplink positioning and/or ranging.

Based on the fifth or sixth aspect, in a possible implementation manner, the determining, by the positioning management device, identification information of the first terminal device includes: the positioning management equipment distributes the identification information of the first terminal equipment for the first terminal equipment;

the method further comprises the steps of: the positioning management device sends the identification information of the first terminal device to the first terminal device.

In this implementation, the positioning management device may allocate identification information for the first terminal device. Therefore, when the positioning management device issues the positioning request to the second terminal device, the positioning management device can carry the identification information of the first terminal device in the positioning request. Thereby triggering the second terminal device to identify the first terminal device. Thereby enabling side-uplink positioning and/or ranging between the first terminal device and the second terminal device.

A seventh aspect of the present application provides a side-uplink communication method, including:

the first terminal equipment receives identification information of the first terminal equipment from the positioning management equipment; the identification information of the first terminal equipment is distributed to the first terminal equipment by the positioning management equipment; the first terminal device receives a side-link message from the second terminal device, the side-link message including identification information of the first terminal device.

In the above technical solution, the first terminal device receives the identification information allocated to the first terminal device by the positioning management device. The first terminal device then receives a side-link message from the second terminal device, the side-link message including identification information of the first terminal device. The second terminal device is realized to identify the first terminal device, so that the side uplink positioning and/or ranging between the first terminal device and the second terminal device are conveniently realized. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Based on the seventh aspect, in a possible implementation manner, the method further includes:

the first terminal equipment establishes a side uplink with the second terminal equipment; and performing side-link positioning and/or ranging with the second terminal device.

An eighth aspect of the present application provides a side-uplink communication method, including:

the first terminal equipment receives first indication information or first information from the second terminal equipment, wherein the first indication information or the first information is used for indicating the first terminal equipment to report identification information of the first terminal equipment to the positioning management equipment; the first terminal device sends the identification information of the first terminal device to the positioning management device.

In the above technical solution, the second terminal device may instruct the first terminal device (the first terminal device is a neighboring terminal device of the second terminal device) to report the identification information of the first terminal device to the positioning management device. Then, the first terminal device transmits identification information of the first terminal device to the location management device. Thereby facilitating the identification of the first terminal device by the location management device. Thereby facilitating the positioning management device to perform positioning measurement and/or ranging for the first terminal device and/or the second terminal device. Thereby supporting the positioning management device to initiate or assist positioning measurements and/or ranging between the first terminal device and the second terminal device.

A ninth aspect of the present application provides a side-uplink communication method, including:

the second terminal equipment sends first indication information or first information to the first terminal equipment, wherein the first indication information or the first information is used for indicating the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment; the second terminal device sends a first request to the positioning management device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, and the first request comprises identification information of the first terminal device.

In the above technical solution, the second terminal device may instruct the first terminal device (the first terminal device is a neighboring terminal device of the second terminal device) to report the identification information of the first terminal device to the positioning management device. The second terminal device sends a first request to the positioning management device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device. Thus, the positioning management device can identify the first terminal device. Thereby facilitating the positioning management device to perform positioning measurement and/or ranging for the first terminal device and/or the second terminal device. The method and the device enable the positioning management device to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.

Based on the eighth or ninth aspect, in one possible implementation manner, the first indication information or the first message is used to indicate an identification type of the identification information reported by the first terminal device, where the identification type includes a layer 2 identification or an application layer identification.

In this implementation manner, the first indication information or the first message may further indicate the type of the identifier reported by the first terminal device. Thereby facilitating the identification used by the first terminal device on the side link by the subsequent positioning management device, and facilitating the side link positioning and/or ranging for the first terminal device.

A tenth aspect of the present application provides a side-uplink communication method, including:

the positioning management equipment receives identification information from first terminal equipment; the positioning management device receives a first request from the second terminal device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, and the first request comprises identification information of the first terminal device; the positioning management device identifies the first terminal device according to the identification information and the first request sent by the first terminal device.

In the above technical solution, the positioning management device identifies the first terminal device according to the identification information sent by the first terminal device and the first request. Thereby facilitating the positioning management device to perform positioning measurements and/or ranging of the first terminal device and/or the second terminal device based on the first request. The method and the device enable the positioning management device to initiate or assist positioning measurement and/or ranging between the first terminal device and the second terminal device.

In one possible implementation manner, the identification information of the first terminal device includes a layer 2 identification or an application layer identification of the first terminal device based on any one of the first to tenth aspects.

Based on any one of the first to tenth aspects, in one possible implementation manner, the layer 2 identification includes at least one of the following: source layer 2 identification (source layer-2 ID), or target layer 2 identification (destination layer-2 ID);

the application layer identification includes at least one of: based on a proximity service application layer identification (ProSe applicaion layer ID), a car-to-anything application layer identification (vehicle to everything applicaion layer ID), an identification for proximity service discovery procedures, or a ranging application layer identification.

Based on any one of the first to tenth aspects, in a possible implementation manner, the identifier for the proximity service discovery procedure includes at least one of the following: based on proximity service application identification (ProSe application ID), application identification (application ID), user information identification (user info ID), restricted based on proximity service application user equipment identification (restricted ProSe application UE ID, RPAUID), or proximity service discovery user equipment identification (ProSe discovery UE ID, PDUID).

Based on any one of the first to tenth aspects, in one possible implementation manner, the identification information of the first terminal device further includes at least one of the following: the effective time and update period of the source layer 2 identifier or the target layer 2 identifier of the first terminal device.

An eleventh aspect of the present application provides a side-uplink communication method, including:

the positioning management device receives a first request from the second terminal device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, the first request comprises a first type identifier of the first terminal device, and the first type identifier is acquired by the second terminal device based on a side uplink; the location management device sends a second request to a proximity service function based, fifth generation mobile communication direct discovery name management (5th generation direct discovery name management function,5G DDNMF), proximity service function based server or vehicle-to-everything (vehicle to everything, V2X) application server, the second request being for requesting a second type identification of the first terminal device, the second request comprising the first type identification of the first terminal device; the positioning management device receives a second type identifier from a first terminal device sent by a server based on a proximity service function, a 5G DDNMF, a proximity service function or a V2X application server; the positioning management device identifies the first terminal device according to the second type identifier of the first terminal device.

In the above technical solution, the positioning management device may obtain the second type identifier of the first terminal device by using a proximity service function-based, 5G DDNMF-based, proximity service function-based server or V2X application server. The location management device then identifies the first terminal device based on the second type identifier of the first terminal device. Thereby facilitating the positioning management device to perform positioning measurements and/or ranging for the first terminal device and/or the second terminal device.

Based on the eleventh aspect, in one possible implementation manner, the first type identifier of the first terminal device includes a layer 2 identifier of the first terminal device or an application layer identifier of the first terminal device.

In this implementation, two possible forms of the first type identification of the first terminal device are provided, facilitating implementation of the scheme. Since in the side-uplink communication flow, mutual discovery between different terminal devices can be achieved through layer 2 identification or application layer identification. Therefore, the second terminal device obtains the first type identifier of the first terminal device through the side uplink communication flow, and carries the first type identifier of the first terminal device through the first request so as to request the first terminal device and/or the second terminal device to perform positioning measurement and/or ranging.

Based on the eleventh aspect, in one possible implementation manner, the layer 2 identification includes at least one of the following: a source layer 2 identifier, or a target layer 2 identifier;

the application layer identification includes at least one of: based on proximity service application layer identification, vehicle-to-everything application layer identification, identification for proximity service discovery procedures, or ranging application layer identification.

In this implementation, some possible implementations of layer 2 identification and target layer 2 identification are provided, facilitating implementation of the scheme. The identifier of the above example may be used for discovery or identification between different terminal devices, so in the solution of the present application, the second terminal device may acquire the first type identifier through a side uplink communication flow, and carry the first type identifier of the first terminal device through a first request, so as to request to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device.

Based on the eleventh aspect, in a possible implementation manner, the identifier for the proximity service discovery procedure includes at least one of the following: based on proximity service application identification, user information identification, restricted based on proximity service application user equipment identification, or based on proximity service discovery user equipment identification.

Based on the eleventh aspect, in one possible implementation manner, the second type of identification of the first terminal device includes a user permanent identification (subscription permanent identifier, SUPI), a globally unique temporary identification (globally uique temporary identity, GUTI), or an international mobile subscriber identity (international mobile subscriber identity, IMSI) of the second terminal device.

In this implementation some possible forms of the second type of identification of the first terminal device are shown. The second type identifier of the first terminal device may be a SUPI, GUTI or IMSI of the first terminal device, and the location management device may identify the second type identifier of the first terminal device. Therefore, the first terminal equipment is identified by the positioning management equipment, and the subsequent positioning measurement for the first terminal equipment is facilitated.

A twelfth aspect of the present application provides a communication device, comprising:

the receiving and transmitting module is used for sending the identification information of the communication device to the positioning management equipment, wherein the identification information of the communication device is used for identifying the communication device in the positioning and/or ranging process of other terminal equipment; a side-link message is received from the second terminal device, the side-link message including identification information of the communication device.

A thirteenth aspect of the present application provides a communication device, comprising:

the processing module is used for determining the identification information of the communication device, wherein the identification information of the communication device is used for the terminal equipment on the side link where the communication device is located to find the communication device;

and the receiving and transmitting module is used for transmitting the identification information of the communication device to the positioning management equipment.

Based on the twelfth or thirteenth aspect, in a possible implementation manner, the transceiver module is further configured to:

a first request from a location management device is received, the first request being for requesting a communication device to report identification information of the communication device.

Based on the twelfth or thirteenth aspect, in one possible implementation manner, the first request further includes first indication information, where the first indication information is used to indicate a type of identifier reported by the communication device, and the type of identifier includes a layer 2 identifier or an application layer identifier.

and receiving a second request sent by the second terminal equipment, wherein the second request is used for requesting the communication device to report the identification information of the communication device.

Based on the twelfth or thirteenth aspect, in a possible implementation manner, the second request further includes second indication information, where the second indication information is used to indicate a type of identifier reported by the communication device, and the type of identifier includes a layer 2 identifier or an application layer identifier.

Based on the thirteenth aspect, in one possible implementation manner, the transceiver module is further configured to:

a side-link message is received from the second terminal device, the side-link message including identification information of the first terminal device.

Based on the twelfth aspect, in a possible implementation manner, the communication device further includes a processing module;

a processing module, configured to establish a side uplink connection with a second terminal device; and performing side-link positioning and/or ranging with the second terminal device.

Based on the thirteenth aspect, the processing module is further to:

establishing a side uplink connection with a second terminal device; and performing side-link positioning and/or ranging with the second terminal device.

and sending a first measurement result to the positioning management equipment, wherein the first measurement result is obtained by performing side uplink positioning and/or ranging between the communication device and the second terminal equipment.

A fourteenth aspect of the present application provides a communication apparatus, comprising:

the receiving and transmitting module is used for receiving the identification information of the first terminal equipment from the positioning management equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in the positioning and/or ranging process of other terminal equipment; a side-link message is sent to the first terminal device, the side-link message comprising identification information of the first terminal device.

A fifteenth aspect of the present application provides a communication apparatus comprising:

the receiving and transmitting module is used for receiving a third request from the positioning management equipment, wherein the third request is used for requesting the side uplink positioning and/or ranging between the first terminal equipment and the communication device, the third request comprises the identification information of the first terminal equipment, and the identification information of the first terminal equipment is distributed for the first terminal equipment by the positioning management equipment or reported to the positioning management equipment by the first terminal equipment; transmitting a side uplink message to a first terminal device; the side uplink message includes identification information of the first terminal device;

a processing module, configured to establish a side uplink connection with a first terminal device; and performing side link positioning and/or ranging with the first terminal equipment.

Based on the fourteenth or fifteenth aspect, in a possible implementation manner, the transceiver module is further configured to:

and sending a second request to the first terminal equipment, wherein the second request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment.

Based on the fourteenth or fifteenth aspect, in a possible implementation manner, the second request further includes second indication information, where the second indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

Based on the fourteenth aspect, in one possible implementation manner, the transceiver module is specifically configured to:

a third request is received from the positioning management device, the third request comprising identification information of the first terminal device, the third request being for requesting a side-link positioning and/or ranging between the first terminal device and the communication apparatus.

Based on the fourteenth aspect, in a possible implementation manner, the communication device further includes a processing module;

a processing module, configured to establish a side uplink connection with a first terminal device; and performing side-link positioning and/or ranging with the first terminal equipment.

and sending a second measurement result to the positioning management device, wherein the second measurement result is obtained by performing side-link positioning and/or ranging between the communication device and the first terminal device.

A sixteenth aspect of the present application provides a communication device comprising:

the processing module is used for determining the identification information of the first terminal equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in the positioning and/or ranging process of other terminal equipment;

And the receiving and transmitting module is used for transmitting the identification information of the first terminal equipment to the second terminal equipment.

A seventeenth aspect of the present application provides a communication device, comprising:

the processing module is used for determining the identification information of the first terminal equipment, wherein the identification information of the first terminal equipment is used for the terminal equipment on the side link where the first terminal equipment is located to find the first terminal equipment;

and the receiving and transmitting module is used for sending a third request to the second terminal equipment, the third request is used for requesting the side uplink positioning and/or ranging between the first terminal equipment and the second terminal equipment, and the third request comprises the identification information of the first terminal equipment.

Based on the sixteenth aspect, in one possible implementation manner, the transceiver module is specifically configured to:

and sending a third request to the second terminal equipment, wherein the third request is used for requesting the side link positioning and/or ranging between the first terminal equipment and the second terminal equipment, and the third request comprises the identification information of the first terminal equipment.

Based on the sixteenth or seventeenth aspect, in a possible implementation manner, the transceiver module is further configured to:

and receiving a first measurement result from the first terminal equipment and/or a second measurement result from the second terminal equipment, wherein the first measurement result and/or the second measurement result are obtained by performing side-link positioning and/or ranging between the first terminal equipment and the second terminal equipment.

identification information from a first terminal device is received.

and sending a first request to the first terminal equipment, wherein the first request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment.

Based on the sixteenth aspect or the seventeenth aspect, in one possible implementation manner, the first request further includes first indication information, where the first indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

Based on the sixteenth or seventeenth aspect, in a possible implementation manner, the processing module is specifically configured to:

distributing the identification information of the first terminal equipment to the first terminal equipment;

the transceiver module is also for:

and sending the identification information of the first terminal equipment to the first terminal equipment.

An eighteenth aspect of the present application provides a communication device, comprising:

the receiving and transmitting module is used for receiving the identification information of the communication device sent by the positioning management equipment; the identification information of the communication device is distributed to the communication device by the positioning management equipment; a side-link message is received from the second terminal device, the side-link message including identification information of the communication device.

In one possible implementation manner, the communication device further includes a processing module;

a processing module for establishing a side uplink with the second terminal device; and performing side-link positioning and/or ranging with the second terminal device.

A nineteenth aspect of the present application provides a communication apparatus, comprising:

the receiving and transmitting module is used for receiving first indication information or first information from the second terminal equipment, wherein the first indication information or the first information is used for indicating the communication device to report the identification information of the communication device to the positioning management equipment; the identification information of the communication device is transmitted to the location management device.

Based on the nineteenth aspect, in one possible implementation manner, the first indication information or the first message is used to indicate an identification type of the identification information reported by the communication device, where the identification type includes a layer 2 identification or an application layer identification.

With reference to the twelfth, thirteenth, eighteenth, or nineteenth aspect, in one possible implementation manner, the identification information of the communication device includes a layer 2 identification or an application layer identification of the communication device.

Based on the twelfth, thirteenth, eighteenth, or nineteenth aspect, in one possible implementation manner, the layer 2 identification includes at least one of: a source layer 2 identifier, or a target layer 2 identifier;

With reference to the twelfth aspect, the thirteenth aspect, the eighteenth aspect, or the nineteenth aspect, in a possible implementation manner, the identifier for the proximity-based service discovery procedure includes at least one of: based on proximity service application identification, user information identification, restricted based on proximity service application user equipment identification, or based on proximity service discovery user equipment identification.

With reference to the twelfth, thirteenth, eighteenth, or nineteenth aspect, in a possible implementation manner, the identification information of the communication device further includes at least one of the following: the effective time, update period, of the layer 2 identification or application layer identification of the communication device.

A twentieth aspect of the present application provides a communication device, comprising:

the receiving and transmitting module is used for sending first indication information or first information to the first terminal equipment, wherein the first indication information or the first information is used for indicating the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment; a first request is sent to the positioning management device, the first request being for requesting positioning measurement and/or ranging of the first terminal device and/or the communication means, the first request comprising identification information of the first terminal device.

Based on the twentieth aspect, in one possible implementation manner, the first indication information or the first message is used to indicate an identification type of the identification information reported by the first terminal device, where the identification type includes a layer 2 identification or an application layer identification.

A twenty-first aspect of the present application provides a communication device, comprising:

the receiving and transmitting module is used for receiving the identification information from the first terminal equipment; receiving a first request from a second terminal device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, and the first request comprises identification information of the first terminal device;

and the processing module is used for identifying the first terminal equipment according to the identification information sent by the first terminal equipment and the first request.

With reference to the fourteenth, fifteenth, sixteenth, seventeenth, twentieth or twenty-first aspect, in one possible implementation manner, the identification information of the first terminal device includes a layer 2 identification, or an application layer identification, of the first terminal device.

With reference to the fourteenth, fifteenth, sixteenth, seventeenth, twentieth, or twenty-first aspect, in one possible implementation manner, the layer 2 identification includes at least one of: a source layer 2 identifier, or a target layer 2 identifier;

With reference to the fourteenth, fifteenth, sixteenth, seventeenth, twentieth or twenty-first aspect, in one possible implementation manner, the identifier for the proximity service discovery procedure includes at least one of the following: based on proximity service application identification, user information identification, restricted based on proximity service application user equipment identification, or based on proximity service discovery user equipment identification.

With reference to the fourteenth, fifteenth, sixteenth, seventeenth, twentieth or twenty-first aspect, in one possible implementation manner, the identification information of the first terminal device further includes at least one of the following: the effective time and update period of the layer 2 identifier or the application layer identifier of the first terminal device.

A twenty-second aspect of the present application provides a communication apparatus, comprising:

a transceiver module, configured to receive a first request from a second terminal device, where the first request is used to request to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device, where the first request includes a first type identifier of the first terminal device, where the first type identifier is acquired by the second terminal device based on a side uplink; transmitting a second request to a proximity-based service function, 5G DDNMF, proximity-based service function server or V2X application server, the second request requesting a second type of identification of the first terminal device, the second request including the first type of identification of the first terminal device; receiving a second type identification from a first terminal device transmitted by a proximity-based service function, a 5G DDNMF, a proximity-based service function server or a V2X application server;

And the processing module is used for identifying the first terminal equipment according to the second type identifier of the first terminal equipment.

Based on the twenty-second aspect, in one possible implementation manner, the first type identifier of the first terminal device includes a layer 2 identifier of the first terminal device or an application layer identifier of the first terminal device.

Based on the twenty-second aspect, in one possible implementation manner, the layer 2 identification includes at least one of the following: a source layer 2 identifier, or a target layer 2 identifier;

Based on the twenty-second aspect, in a possible implementation manner, the identifier for the proximity service discovery procedure includes at least one of the following: based on proximity service application identification, user information identification, restricted based on proximity service application user equipment identification, or based on proximity service discovery user equipment identification.

Based on the twenty-second aspect, in one possible implementation manner, the second type identifier of the first terminal device includes a SUPI, a GUTI, or an IMSI of the second terminal device.

A twenty-third aspect of the present application provides a communication device comprising a processor. The processor is configured to invoke and run a computer program stored in a memory, such that the processor implements any implementation of any of the first to eleventh aspects.

Optionally, the communication device further comprises a transceiver; the processor is also used for controlling the transceiver to transmit and receive signals.

Optionally, the communication device comprises a memory, in which the computer program is stored.

A twenty-fourth aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform an implementation as in any of the first to eleventh aspects.

A twenty-fifth aspect of the present application provides a computer-readable storage medium comprising computer instructions which, when run on a computer, cause the computer to perform any one of the implementations as in the first to eleventh aspects.

A twenty-sixth aspect of the present application provides a chip device, comprising a processor, configured to be connected to a memory, and call a program stored in the memory, so that the processor performs any implementation manner of the first aspect to the eleventh aspect.

A twenty-seventh aspect of the present application provides a communication system comprising the communication apparatus as shown in the fourteenth aspect and the communication apparatus as shown in the sixteenth aspect.

Optionally, the communication system further comprises a communication device as shown in the twelfth aspect; or, as in the eighteenth aspect.

A twenty-eighth aspect of the present application provides a communication system including the communication apparatus as shown in the fifteenth aspect and the communication apparatus as shown in the seventeenth aspect.

Optionally, the communication system further comprises a communication device as shown in the thirteenth aspect, or a communication device as shown in the eighteenth aspect.

A twenty-ninth aspect of the present application provides a communication system including the communication apparatus as shown in the nineteenth aspect, the communication apparatus as shown in the twentieth aspect, and the communication apparatus as shown in the twenty-first aspect.

From the above technical solutions, the embodiments of the present application have the following advantages:

according to the technical scheme, the first terminal equipment sends the identification information of the first terminal equipment to the positioning management equipment, and the identification information of the first terminal equipment is used for identifying the first terminal equipment in the positioning and/or ranging process of other terminal equipment; the first terminal device receives a side-link message from the second terminal device, the side-link message comprising identification information of said first terminal device. The identification information of the first terminal equipment on the second terminal equipment is provided for the second terminal equipment by the positioning management equipment, so that the second terminal equipment can identify the first terminal equipment, and side uplink positioning and/or ranging between the first terminal equipment and the second terminal equipment can be conveniently realized. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Drawings

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

FIG. 2 is a schematic diagram of one embodiment of a method of side-link communication according to an embodiment of the present application;

FIG. 3 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application;

FIG. 4 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application;

FIG. 5 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application;

FIG. 6 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 8 is another schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is another schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is another schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 11 is another schematic structural diagram of a communication device according to an embodiment of the present application;

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

fig. 13 is another schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a side-link communication method and a related device, which are used for a second terminal device to identify a first terminal device, so that side-link positioning and/or ranging between the first terminal device and the second terminal device can be conveniently realized.

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. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

In the description of the present application, "/" means "or" unless otherwise indicated, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c; a and b; a and c; b and c; or a and b and c. Wherein a, b and c can be single or multiple.

The technical scheme of the embodiment of the application can be applied to a side uplink communication system. Such as an internet of things system. The system can be a car networking system, an industrial internet of things system, an intelligent home system and the like. Such as public safety systems (public safety), smart city systems, transportation safety systems, industrial control systems, unmanned systems, industrial robotic systems, and the like.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. Referring to fig. 1, the communication system includes a terminal device 101, a terminal device 102, a terminal device 103, an access network device 104, an access and mobility management function (access and mobility management function, AMF) 105, and a location management function (location management function, LMF) 106.

Alternatively, the terminal device 101, the terminal device 102, and the terminal device 103 may be connected through interfaces. The access network device 104 and the AMF105 may be connected through an interface, and the AMF105 and the LMF106 may be connected through an interface.

For example, the terminal device 101 and the terminal device 102 may be connected through a PC5 interface. Terminal device 101 and terminal device 103 may be connected through a PC5 interface, and terminal device 101 and terminal device 103 may be connected through a PC5 interface. The terminal device 101 and the terminal device 102 are respectively connected with the access network device 104 through NR-Uu interfaces, and the access network device 104 is connected with the AMF105 through NG-C interfaces. The AMF105 and the LMF106 are connected through an NL1 interface. The NR-Uu interface is a communication interface between a terminal device and an access network device. The NG-C interface is the control plane interface between the access network and the core network. The NL1 interface is a communication interface between the AMF and the LMF.

Fig. 1 described above only shows an example in which the communication system includes a terminal device 101, a terminal device 102, a terminal device 103, and an access network device 104. In practical applications, the communication system may include at least two terminal devices and at least one access network device, which is not limited in this application.

A terminal device, also called User Equipment (UE), mobile Station (MS), mobile Terminal (MT), etc. A terminal device is a device that includes wireless communication functionality (providing voice/data connectivity to a user). For example, a handheld device having a wireless connection function, an in-vehicle device, a machine type communication (machine type communication, MTC) terminal, or the like. Currently, the terminal device may include: a mobile phone, a tablet, a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (e.g., an unmanned aerial vehicle, a vehicle), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), or a wireless terminal in smart home (smart home), etc.

The access network device 104 is a means deployed in a radio access network to provide wireless communication functionality for terminal devices. The access network device may access the terminal device to a radio access network (radio access network, RAN) node of the wireless network.

Access network devices include, but are not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (home evolved NodeB, or home Node B, HNB, for example), a baseband unit (BBU), an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay Node, a wireless backhaul Node, a transmission point (transmission point, TP), or a transmission reception point (transmission and reception point, TRP), etc., may also be a network device in a 5G mobile communication system. For example, next generation base stations (gNB) in NR systems, transmission reception points (transmission reception point, TRP), transmission points (transmission point, TP); or one or a group (including a plurality of antenna panels) of base stations in a 5G mobile communication system; alternatively, the access network device may also be a network node constituting a gNB or a transmission point. For example, a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and DUs. The gNB may also include an active antenna unit (active antenna unit, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB.

For example, a CU is responsible for handling non-real-time protocols and services, implementing the functions of the radio resource control (radio resource control, RRC) layer and the packet data convergence layer protocol (packet data convergence protocol, PDCP) layer. The DUs are responsible for handling physical layer protocols and real-time services, implementing the functions of the radio link control (radio link control, RLC), medium access control (media access control, MAC) and Physical (PHY) layers. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. The information of the RRC layer may eventually become information of the PHY layer or may be converted from the information of the PHY layer. Under this architecture, higher layer signaling (e.g., RRC layer signaling) may also be considered to be sent by DUs, or by DUs and AAUs.

It is understood that the access network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

The AMF is responsible for access control, registration management, service management, mobility management, etc. of the terminal device to access the network.

The LMF is used for carrying out positioning calculation and management on the position of the terminal equipment.

In this application, the name of the AMF may change as the communication system evolves. In the present communication system or the future communication system, the AMF of the present application can be understood as a functional network element having other names having functions similar to those of the AMF. And is applicable to the methods provided by the embodiments of the present application.

In this application, LMF is the name in the current communication system. In future communication systems, the name of the LMF may change as the communication system evolves. Therefore, the LMF will hereinafter be referred to as a location management device to introduce the technical solution of the present application. The positioning management device is used for performing positioning calculation on the position of the terminal device. In the present communication system or the future communication system, the positioning management device in the present application can be understood as long as the functional network element having other names having functions similar to those of the positioning management device. And are suitable for use in the methods provided herein.

Some technical terms related to the present application are described below.

Application identification (application ID): for identifying a particular application.

Based on proximity service application identification (proximity based services application identity, proSe application ID): in an open proximity-based service direct discovery procedure, application layer related information of terminal devices capable of supporting 5G proximity-based service (5G ProSe) requirements and procedures is identified. Typically for communication transmissions on the side links.

Based on proximity services service application code (ProSe application code): associated with the proximity-based service application identification for opening a proximity-based service direct discovery (open ProSe direct discovery) flow. The terminal equipment sends a request for obtaining based on a proximity service discovery user equipment identifier (Prose discovery UE ID, PDUID) through a fourth generation mobile communication based on a proximity service function (4G ProSe function) or a fifth generation mobile communication direct discovery name management (5th generation direct discovery name management function,5G DDNMF).

Based on a proximity services limited code (ProSe restricted code): for limited proximity-based service direct discovery procedures, a limited proximity-based service application user equipment identity (restricted ProSe application UE ID, RPAUID) is sent by the terminal device to a 4G proximity-based service function or 5G DDNMF to obtain a proximity-based service limited code.

Discovering a user equipment identity (Prose discovery UE ID, PDUID) based on the proximity service: is part of the user equipment service authentication information and is operable to apply for a PDUID to a proximity based service application server (ProSe application server).

Restricted based on proximity services application user equipment identity (restricted ProSe application UE ID, RPAUID): is a temporary identity generated for a restricted proximity-based application based user identity based on a proximity-based application server (ProSe application server) for protecting the application layer user identity.

Layer 2 identification (layer-2 ID): for side-link communication and/or V2X communication between terminal devices. The layer 2 identity includes a source layer 2 identity (source layer-2 ID) and a target layer 2 identity (destination layer-2 ID).

Source layer 2 identification: for identifying the sender of the side-link communication. The source layer 2 is identified as 24 bits in length and is split into two bit streams at the medium access control (media access control, MAC) layer. The first bit stream is the least significant bit (least significant bit, LSB) portion of the source layer 2 identification, which is sent to the physical layer, which is used to identify the source of the expected data in the side-uplink control information for physical layer packet filtering at the receiving end. The LSB portion has a length of 8 bits. The second bit stream is the most significant bit (most significant bit, MSB) portion identified by source layer 2, which is 16 bits in length, carried in the MAC header for MAC layer packet filtering at the receiving end.

Target layer 2 identification: for identifying target data in the side uplink communication. For side-link communications, the target layer 2 identity is 24 bits in length and is split into two bitstreams at the MAC layer. The first bit stream is the LSB portion identified by target layer 2, which is 16 bits in length, which is sent to the physical layer. The second bit stream is the MSB portion identified by target layer 2, which is 8 bits in length, carried in the MAC header for MAC layer packet filtering.

Alternatively, the above-shown identification may be configured at a higher layer.

5G is a technology for a terminal device to discover a neighboring terminal device in a V2X communication system based on proximity service direct discovery (5G ProSe direct discovery). The 5G is based on two types of proximity service direct discovery procedures, open discovery (open discovery) and restricted discovery (restricted discovery), respectively. The 5G has two models, model a (mode a) and model B (mode B), based on the proximity service direct discovery procedure. Wherein model B only supports restricted discovery. The 5G proximity-based service direct discovery procedure may be simply referred to as a discovery procedure.

The following describes 5G based on model a in the proximity service discovery process.

In model a, the terminal devices are divided into transmissions UE (announcing UE) and monitoring UE (monitoring UE). The specific principle is as follows: the 5G DDNMF assigns a proximity service based application code (ProSe application code) and a discovery filter (discovery filters) to the two terminal devices, respectively. If the limited discovery process is adopted, the 5G DDNMF respectively distributes the limited application codes based on the adjacent service to the two terminal devices. The transmitting UE transmits a notification message (announcement message) that includes the type of message (indicating that the message is a notification message), a proximity-based service application code, a security protection unit, and the like. The monitoring UE receives the notification message from the transmitting UE. If the monitoring UE monitors a proximity service based application code matching the discovery filter of the monitoring UE, it indicates that the monitoring UE has discovered the transmitting UE.

The sending of the notification message depends on two identifications, namely a source layer 2 identification and a target layer 2 identification. These two identifications can indicate one side-link. The source layer 2 identity is typically selected autonomously by the terminal device for sending notification messages. The target layer 2 identity is typically configured by the proximity communication 5discovery (ProSe communication, pc 5-D) protocol layer to the terminal device. The target layer 2 identity is derived from proximity-based service identity (ProSe identities) mapping. In release 16 (R16) version, the identity used for the discovery procedure is typically an application identity.

The following describes 5G based on model B in the proximity service discovery process.

The basic principle of model B is the same as model a. In model B, the terminal devices are divided into discovery UE (discoverer UE) and discovery UE (discoveree UE). The discovery UE transmits a request (solicitation) message containing a type of the discovery message, a proximity-based service query code (ProSe query code), a security protection unit, etc. The 5G DDNMF is allocated based on the proximity service query code, while the discovered UEs are also allocated corresponding discovery filters (discovery filters).

If the discovered UE detects the request message, the discovered UE may return a response message to the discovered UE. The response message contains a type of discovery message, a proximity-based service query code, a security protection unit, a metadata (metadata) message, etc. After the discovery UE receives the response message, the discovered UE is discovered. I.e. the discovery UE and the discovered UE implement mutual discovery.

It follows that the terminal devices can be connected through a PC5 interface and communicate through a Sidelink (SL). For example, the terminal device 1 transmits a signal to the terminal device 2 through the side-link. However, how to trigger positioning measurements and/or ranging between two terminal devices on the sidelink is a considerable problem.

Currently, in NR positioning, a positioning management device may request a target terminal device to report positioning information through a long term evolution positioning protocol (long term evolution positioning protocol, LPP) message. The request may include a message type, a reporting period, a measurement amount, and the like, which require reporting. After receiving the request, the target terminal device can execute positioning measurement according to the request, and report a corresponding measurement result to the positioning management device through an LPP message. In the NR positioning process, the positioning management device identifies the target terminal device according to the SUPI of the target terminal device.

In the side uplink communication flow, the common terminal equipment identifiers are layer 2 identifiers and application layer identifiers. Therefore, if the above-described side-link-based communication flow and NR positioning flow are used for side-link positioning, there is a problem that the identity of the terminal device (for example, SUPI of the terminal device) used by the NR positioning flow is not uniform with the identity of the terminal device (for example, layer 2 identity or application layer identity) used by the side-link communication flow. The side-uplink communication procedures may include discovery procedures, or positioning and/or ranging procedures, etc., and are not limited in this application. Two possible scenarios are presented below.

Scene one: the positioning management device may request the second terminal device to perform side-link positioning with the first terminal device through the LPP message. Typically, the location management device will not send the SUPI of the first terminal device to the second terminal device. On the other hand, even if the positioning management device transmits the SUPI of the first terminal device to the second terminal device. The second terminal device cannot identify the SUPI of the first terminal device. Thus, the second terminal device cannot identify the first terminal device using the SUPI of the first terminal device. The LMF cannot provide an identification of the appropriate first terminal device such that the first terminal device cannot be paired with the second terminal device to establish the sidelink. Thereby resulting in an inability to perform side-uplink positioning and/or ranging between the first terminal device and the second terminal device.

The application provides a corresponding technical scheme, which is used for triggering the second terminal equipment and the first terminal equipment to execute side uplink positioning and/or ranging by the positioning management equipment, so as to realize positioning measurement and/or ranging between the first terminal equipment and the second terminal equipment. Reference is made in particular to the following description of the embodiments shown in fig. 2 to 4 and the embodiments shown in steps 2001 to 2007.

Scene II: the second terminal device initiates a request to the location management device via a mobile initiated location request (mobile originated location request, MO-LR) requesting location measurements to the first terminal device and/or the second terminal device. The request includes an identification of the first terminal device. The identification of the first terminal device may be, for example, an identification employed based on a proximity service direct discovery procedure or an identification employed by a side-link communication transmission. Such as layer 2 identification, application layer identification, etc. The positioning management device cannot identify the identifier carried by the request, so that the positioning management device cannot perform positioning measurement on the first terminal device and/or the second terminal device.

The application provides a corresponding technical scheme which is used for identifying the second terminal equipment by the positioning management equipment and realizing positioning measurement of the first terminal equipment and/or the second terminal equipment by the positioning management equipment. Reference is made in particular to the description of the embodiments shown in figures 5 and 6 hereinafter.

It should be noted that, in this application, "discovery" may be equivalent to "identification", "matching" or "pairing". In this application, application layer identification is mainly described by taking a discovery flow as an example. In practical applications, the application of other application layer identifiers related to the side links is applicable, and the application is not limited.

The following describes the technical scheme of the present application in connection with specific embodiments.

Fig. 2 is a schematic diagram of one embodiment of a method of side-link communication according to an embodiment of the present application. Referring to fig. 2, the side-link communication method includes:

201. the positioning management device determines identification information of the first terminal device.

The identification information of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device. The terminal device on the side link where the first terminal device is located may be understood as other terminal devices than the first terminal device. For example, the identification information of the first terminal device is used for the second terminal device to discover the first terminal device.

Optionally, the identification information of the first terminal device includes a layer 2 identification of the first terminal device, or an application layer identification of the first terminal device.

Wherein the layer 2 identification comprises at least one of: source layer 2 identity, or target layer 2 identity. For the source layer 2 identity and the target layer 2 identity, refer to the relevant description above.

It should be noted that, the foregoing only shows some examples of the application layer identifier, and in practical application, other application layer identifiers related to the side links are all applicable to the present application, which is not limited in this application.

Optionally, the identifier for the proximity service discovery process comprises at least one of the following: based on proximity service application identification, user information identification, restricted based on proximity service application user equipment identification, or based on proximity service discovery user equipment identification. For these identifications, reference is made to the relevant introduction in the preceding terminology.

For example, in a proximity-based service direct discovery procedure, the terminal device may use a proximity-based service application identification, or a restricted proximity-based service application user equipment identification, to apply a proximity-based service function or a 5G direct discovery name management network element for a proximity-based service application code or a proximity-based service application restricted code for the discovery procedure. Therefore, discovery between the first terminal device and the second terminal device can be achieved through the application layer identifier of the first terminal device. In this embodiment, the application layer identification of the first terminal device is used for discovery between the first terminal device and the second terminal device. Therefore, in the technical scheme of the application, the positioning management device can send the application layer identifier of the first terminal device to the second terminal device. The second terminal device may then employ the application layer identification of the first terminal device to enable discovery between the first terminal device and the second terminal device. The first terminal device then performs side-link positioning and/or ranging with the second terminal device.

For example, the identification information of the first terminal device includes a source layer 2 identification of the first terminal device. Typically, the source layer 2 identity is selected by the first terminal device itself. In this embodiment, the source layer 2 identity is used for discovery between the first terminal device and the second terminal device. Therefore, in the technical solution of the present application, the positioning management device may send the source layer 2 identifier of the first terminal device to the second terminal device. The second terminal device may then use the source layer 2 identity of the first terminal device to enable discovery between the first terminal device and the second terminal device. The first terminal device then performs side-link positioning and/or ranging with the second terminal device.

Optionally, the source layer 2 identifier or the application layer identifier of the first terminal device is an identifier of a location service binding or association. The source layer 2 identity or the application layer identity of the first terminal device may uniquely identify the first terminal device in one or more positioning services.

Optionally, the identification information of the first terminal device further includes at least one of the following: user information of the first terminal device, effective time of a source layer 2 identifier or an application layer identifier of the first terminal device, and an update period.

In step 201, the positioning management device obtains the identification information of the first terminal device in various manners, which is not limited in this application. Reference is made in particular to two possible implementations described in the embodiments shown in figures 3 to 4 and not described in detail here.

202. The positioning management device sends a third request to the second terminal device. The third request includes identification information of the first terminal device. Correspondingly, the second terminal device receives a third request from the positioning management device.

The third request is for requesting a side-uplink positioning (sidelink positioning) and/or ranging (ranging) between the first terminal device and the second terminal device.

Optionally, the third request further comprises capability information of the first terminal device.

Optionally, the third request includes at least one of the following that the positioning management device requests to report: the relative position of the first terminal device, the absolute position of the first terminal device, the relative position of the second terminal device, the absolute position of the second terminal device, the measured quantity (e.g., time of arrival, angle of arrival, etc.), the distance between the first terminal device and the second terminal device.

Optionally, as shown in the embodiment of fig. 3, the identification information of the first terminal device is reported to the positioning management device by the first terminal device; alternatively, as will be appreciated from the embodiment shown in fig. 4 below, the identification information of the first terminal device is allocated to the first terminal device by the positioning management device. See more particularly the description of the related art.

Alternatively, the third request may also be referred to as a position request (position request).

Optionally, the location request is carried in a request location information (request location information) message or in a new LPP message, which is not limited in the present application.

203. The second terminal device sends a side uplink message to the first terminal device. The side-uplink message includes identification information of the first terminal device. Correspondingly, the first terminal device receives the side uplink message sent by the second terminal device.

Specifically, the second terminal device may send a side uplink message to the first terminal device. The side-uplink message includes identification information of the first terminal device. For example, the side uplink message may be a request message in the model a described above, or a notification message in the model B, which is not limited in the present application. While the first terminal device monitors the side-link message. If the side link message is monitored to include the identification information of the first terminal equipment, the first terminal equipment receives the side link message sent by the second terminal equipment.

It should be noted that the process of step 203 may be understood as a process in which the first terminal device discovers the second terminal device.

Optionally, the embodiment shown in fig. 2 further includes a step 204 and a step 205, and the step 204 and the step 205 may be performed after the step 203.

204. A sidelink is established between the first terminal device and the second terminal device.

Several possible implementations of step 204 are described below.

Mode 1 is described below in connection with steps 2004a through 2004b. Optionally, step 204 specifically includes steps 2004a through 2004b.

2004a, the first terminal device sends a first setup request to the second terminal device. The first establishment request is for requesting establishment of a sidelink between the first terminal device and the second terminal device. Correspondingly, the second terminal device receives a first establishment request from the first terminal device.

In one possible implementation, in mode 1, before step 2004a, the first terminal device sends a response message to the second terminal device. The response message is used to indicate that the first terminal device has found the second terminal device.

2004b, the first terminal device and the second terminal device.

Specifically, after the second terminal device receives the first establishment request, the first terminal device may establish a side uplink with the second terminal device.

Before introducing mode 2, optionally, the embodiment shown in fig. 2 further includes step 203a. Step 203a may be performed after step 203 and before step 204.

203a, the first terminal device sends a response message to the second terminal device, where the response message is used to indicate that the first terminal device discovers the second terminal device. Correspondingly, the second terminal device receives the response message from the first terminal device.

It should be noted that, the above step 203 and step 203a may be understood as a discovery procedure between the first terminal device and the second terminal device.

Mode 2 is described below in connection with steps 2004c through 2004d. Optionally, step 204 specifically includes steps 2004c through 2004d. Steps 2004c to 2004d may be performed after step 203a.

2004c, the second terminal device sending a second establishment request to the first terminal device requesting establishment of a sidelink between the first terminal device and the second terminal device. Correspondingly, the first terminal device receives a second establishment request from the second terminal device.

2004d, the first terminal device and the second terminal device.

Specifically, after the first terminal device receives the second establishment request, the first terminal device may establish a side uplink with the second terminal device. Mode 3 is described below in connection with step 2004e. Optionally, step 204 specifically includes step 2004e. Step 2004e may be performed after step 203.

2004e, the first terminal device receives the side-link message in step 203, and the side-link between the first terminal device and the second terminal device.

The first terminal device sends a third establishment request requesting establishment of a sidelink between the first terminal device and the second terminal device. The first terminal device may establish a side-uplink with the second terminal device.

In mode 3, optionally, the first terminal device sends a response message to the second terminal device. The response message is used to indicate that the first terminal device has found the second terminal device.

205. The first terminal device performs side-link positioning and/or ranging with the second terminal device.

Positioning reference signals can be transmitted between the first terminal device and the second terminal device through a side downlink, so that side downlink positioning and/or ranging can be realized. For example, the second terminal device sends the first positioning reference signal to the first terminal device via the side-link. The first terminal device measures the first positioning reference signal to obtain a first measurement result. And/or the first terminal device sends the second positioning reference signal to the second terminal device through the side uplink. And the second terminal equipment measures the second positioning reference signal to obtain a second measurement result.

Optionally, the first measurement result includes at least one of: the first terminal device measures the measurement quantity obtained by the first positioning reference signal, the position of the second terminal device and the distance between the second terminal device and the first terminal device. For example, the measurement quantity obtained by the first terminal device measuring the first positioning reference signal includes at least one of the following: the arrival time and the arrival angle of the first positioning reference signal to the first terminal device. Optionally, the second measurement result includes: the second terminal device measures the measurement quantity obtained by the second positioning reference signal, the position of the second terminal device and the distance between the second terminal device and the first terminal device. The measurement quantity obtained by the second terminal device measuring the second positioning reference signal comprises at least one of the following: arrival time and arrival angle of the second positioning reference signal to the second terminal device.

Optionally, the embodiment shown in fig. 2 further comprises step 206 and/or step 207.

206. The first terminal device sends a first measurement result to the positioning management device. Correspondingly, the positioning management device receives a first measurement result from the first terminal device.

207. The second terminal device sends a second measurement result to the positioning management device. Correspondingly, the positioning management device receives a second measurement result from the second terminal device.

The embodiment shown in fig. 2 may perform only step 206, only step 207, or both step 206 and step 207, which is not limited in this application. For the scheme that performs both step 206 and step 207, there is no fixed execution order between step 206 and step 207, step 206 may be performed first, and then step 207 may be performed; alternatively, step 207 is performed before step 206 is performed; alternatively, step 206 and step 207 may be performed simultaneously, as the case may be, and the present application is not limited thereto.

In the embodiment of the application, the positioning management device determines the identification information of the first terminal device. The identification information of the first terminal device is used for other terminal devices on the side link where the first terminal device is located to discover the first terminal device. The positioning management device sends a third request to the second terminal device. The third request is for requesting a lateral uplink positioning and/or ranging between the first terminal device and the second terminal device, the third request comprising identification information of the first terminal device. In this way, in the technical solution of the present application, the positioning management device may determine the identification information for other terminal devices to discover the first terminal device, and send a third request to the second terminal device, where the third request includes the identification information of the first terminal device. Thereby triggering the second terminal device to discover the first terminal device and perform side-link positioning and/or ranging with the first terminal device. Side-uplink positioning and/or ranging between the first terminal device and the second terminal device is achieved. The method solves the problem that the identification of the first terminal equipment adopted by the flow of the side uplink communication is not aligned with the identification of the terminal equipment adopted by the NR positioning flow. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

The present application provides yet another embodiment similar to the embodiment shown in fig. 2. The technical scheme of the present embodiment is described below in connection with steps 2001 to 2007. The side-link communication method in this embodiment includes:

step 2001, the positioning management device determines the identification information of the first terminal device.

The identification information of the first terminal device is used for identifying the first terminal device in the positioning and/or ranging process by other terminal devices, and the other terminal devices refer to terminal devices except the first terminal device. Or, the identification information of the first terminal device is used for pairing the first terminal device and the second terminal device in the side uplink positioning and/or ranging process. Or the identification information of the first terminal device is used for the first terminal device in the side uplink positioning and/or ranging process of the second terminal device.

The content included in the identification information about the first terminal device may be referred to as the relevant description in the embodiment shown in fig. 2 described above. The identification information of the first terminal device in this embodiment is different from the identification information of the first terminal device in the embodiment shown in fig. 2 described above in that: in this embodiment, the identification information of the first terminal device is used to identify the first terminal device in the positioning and/or ranging procedure by other terminal devices. The identification information of the first terminal device in the embodiment shown in fig. 2 is used to discover the first terminal device in the discovery procedure by other terminal devices.

The specific manner of determining the identification information of the first terminal device by the positioning management device in step 2001 may be referred to in the following description of the embodiment shown in fig. 3 or fig. 4. The determination of the embodiment shown in fig. 3 or fig. 4 is not limited to this application, but is applicable to other determination methods.

Step 2002, the positioning management device sends the identification information of the first terminal device to the second terminal device. Correspondingly, the second terminal device receives the identification information of the first terminal device from the positioning management device.

Optionally, the positioning management device sends a third request to the second terminal device. The third request is for requesting a lateral uplink positioning and/or ranging between the first terminal device and the second terminal device.

Alternatively, the identification information of the first terminal device and the third request may be sent separately or together. For an implementation in which the location management device sends the third request together with the identification information of the first terminal device, the third request may include the identification information of the first terminal device.

Reference is made to the description of the embodiment shown in fig. 2 described above with respect to the third request.

2003. The second terminal device sends a side uplink message to the first terminal device. The side-uplink message includes identification information of the first terminal device. Correspondingly, the first terminal device receives the side uplink message sent by the second terminal device.

Specifically, the second terminal device transmits a side uplink message. The side-uplink message includes identification information of the first terminal device. If the first terminal device monitors that the side-link message includes identification information of the first terminal device, the first terminal device may determine that the side-link message is sent to the first terminal device. The first terminal device may identify the second terminal device via the side-uplink message.

The above step 2003 may be understood as an identification procedure, a matching procedure or a pairing procedure between the first terminal device and the second terminal device.

Optionally, the present embodiment further includes a step 2004 and a step 2005, and the step 2004 and the step 2005 may be performed after the step 2003.

2004. A sidelink is established between the first terminal device and the second terminal device.

Several possible implementations of the above step 2004 are described below.

Mode 1 is described below in connection with steps a to b. Optionally, step 2004 specifically includes steps a through b.

And a, the first terminal equipment sends a first establishment request to the second terminal equipment. The first establishment request is for requesting establishment of a sidelink between the first terminal device and the second terminal device. Correspondingly, the second terminal device receives a first establishment request from the first terminal device.

In one possible implementation, in mode 1, before step 2004, the first terminal device sends a feedback message to the second terminal device. The feedback message is used to indicate that the first terminal device identified the second terminal device.

And b, establishing a side uplink between the first terminal equipment and the second terminal equipment.

Specifically, after the second terminal device receives the first establishment request, the second terminal device and the first terminal device realize pairing. Or, the second terminal device recognizes the first terminal device. The first terminal device may establish a side-uplink with the second terminal device.

Before introducing the mode 2, the present embodiment optionally further includes step 2003a. Step 2003a may be performed after step 2003 and before step 2004.

Step 2003a, the first terminal device sends a feedback message to the second terminal device, where the feedback message is used to indicate that the first terminal device identifies or matches the second terminal device. Correspondingly, the second terminal device receives the feedback message from the first terminal device.

The identification or pairing between the first terminal device and the second terminal device is achieved by the procedure of steps 2003 to 2003a described above for the first terminal device and the second terminal device. The above steps 2003 and 2003a may be understood as an identification process or a pairing process between the first terminal device and the second terminal device.

Mode 2 is described below in connection with steps c to d. Optionally, step 2004 specifically includes steps c through d. Steps c to d may be performed after step 2003 a.

And c, the second terminal equipment sends a second establishment request to the first terminal equipment, wherein the second establishment request is used for requesting establishment of the side uplink between the first terminal equipment and the second terminal equipment. Correspondingly, the first terminal device receives a second establishment request from the second terminal device.

And d, establishing a side uplink between the first terminal equipment and the second terminal equipment.

Specifically, after the first terminal device receives the second establishment request, the first terminal device may establish a side uplink with the second terminal device.

Mode 3 is described below in connection with step e. Optionally, step 2004 specifically includes step e. Step e may be performed after step 2003.

Step e, after the first terminal device receives the side-link message in step 2003, the side-link between the first terminal device and the second terminal device.

In mode 3, optionally, the first terminal device sends a feedback message to the second terminal device. The feedback message is used to indicate that the first terminal device identified or matched the second terminal device. After the second terminal device receives the feedback message, the second terminal device also identifies or matches the first terminal device. Thereby, the identification or pairing between the first terminal device and the second terminal device is realized.

Step 2005, the first terminal device performs side-link positioning and/or ranging with the second terminal device.

Step 2005 is similar to step 205 of the embodiment shown in fig. 2 and can be specifically referred to in the description of the related art.

Optionally, the present embodiment further includes step 2006 and/or step 2007.

Step 2006, the first terminal device sends the first measurement result to the positioning management device. Correspondingly, the positioning management device receives a first measurement result from the first terminal device.

Step 2007, the second terminal device sends a second measurement result to the positioning management device. Correspondingly, the positioning management device receives a second measurement result from the second terminal device.

Steps 2006 and 2007 are similar to steps 206 and 207 of the embodiment shown in fig. 2 and described above, see more particularly the description of the related embodiments.

In the embodiment of the application, the positioning management device determines the identification information of the first terminal device. The first terminal device is used for other terminal devices to identify or match the first terminal device in the positioning and/or ranging process. The positioning management device sends the identification information of the first terminal device to the second terminal device. In this way, in the technical solution of the present application, the positioning management device may determine the identification information for identifying or matching the first terminal device with other terminal devices, and send the identification information of the first terminal device to the second terminal device. Thereby triggering the second terminal device to identify the first terminal device and perform side-link positioning and/or ranging with the first terminal device. Side-uplink positioning and/or ranging between the first terminal device and the second terminal device is achieved. The method solves the problem that the identification of the first terminal equipment adopted by the side uplink communication flow is not aligned with the identification of the terminal equipment adopted by the NR positioning flow. Thereby supporting the positioning management device to initiate or assist in lateral-uplink positioning and/or ranging between the first terminal device and the second terminal device.

Two possible implementations of the positioning management device determining the identification information of the first terminal device are described below in connection with the embodiments shown in fig. 3 and 4.

Fig. 3 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application. Referring to fig. 3, the side-link communication method includes:

301. the first terminal device sends the identification information of the first terminal device to the positioning management device. Correspondingly, the positioning management device receives the identification information from the first terminal device.

In one possible implementation manner, the first terminal device may actively report the identification information of the first terminal device to the location management device. For the identification information of the first terminal device, please refer to the related description, and the description is omitted here.

In another possible implementation manner, the first terminal device may report the identification information of the first terminal device to the positioning management device based on a request of the other device. Two possible implementations are described below.

Mode 1 is described below in connection with step 301a. Optionally, the embodiment shown in fig. 3 further comprises step 301a. Step 301a may be performed prior to step 301.

301a, the positioning management device sends a first request to a first terminal device. Correspondingly, the first terminal device receives a first request from the positioning management device.

The first request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment.

Specifically, when the positioning management device needs to position the first terminal device, the positioning management device may request the identification information of the first terminal device from the first terminal device.

Optionally, the first request further includes first indication information, where the first indication information is used to indicate an identification type of the first terminal device that is reported by the first terminal device. The identification type includes a layer 2 identification or an application layer identification. For identification information on the first terminal device, reference is made to the preceding relevant description.

Optionally, the embodiment shown in fig. 3 further comprises 301b.

301b, the second terminal device sends identification information of the second terminal device to the positioning management device. Correspondingly, the positioning management device receives the identification information from the second terminal device.

The identification information of the second terminal device is similar to the identification information of the first terminal device, and specific reference may be made to the description related to the identification information of the first terminal device, which is not repeated herein.

It should be noted that there is no fixed execution sequence between step 301b and step 301. Step 301 may be performed first, followed by step 301b; or, step 301b is performed first, and then step 301 is performed; alternatively, step 301 and step 301b may be performed simultaneously, and the present application is not limited in detail.

Optionally, the embodiment shown in fig. 3 further comprises step 301c. Step 301c may be performed before step 301 b.

301c, the positioning management device sends a fourth request to the second terminal device. Correspondingly, the second terminal device receives a fourth request from the positioning management device.

The fourth request is used for requesting the second terminal equipment to report the identification information of the second terminal equipment to the positioning management equipment.

Specifically, when the positioning management device needs to position the second terminal device, the positioning management device may request the identification information of the second terminal device from the second terminal device.

Optionally, the fourth request further includes third indication information, where the third indication information is used to indicate an identifier type of the second identifier of the second terminal device that is reported by the second terminal device. For the type of identification, refer to the relevant description above.

It should be noted that there is no fixed execution sequence between step 301 and step 301a and step 301b and step 301c. Step 301 and step 301a may be performed first, followed by step 301b and step 301c; alternatively, step 301b and step 301c are performed first, and then step 301 and step 301a are performed; alternatively, the steps 301 and 301a and 301b and 301c may be performed simultaneously according to circumstances, which is not limited in the present application.

Mode 2 is described below in connection with step 301d. Optionally, the embodiment shown in fig. 3 further comprises step 301d. Step 301d may be performed prior to step 301.

301d, the second terminal device sends a second request to the first terminal device. The second request is used for requesting the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment. Correspondingly, the first terminal device receives a second request from the second terminal device.

Specifically, when the second terminal device has a positioning requirement, the second terminal device may request the first terminal device to report the identification information of the first terminal device to the positioning management device. The first terminal device may be a neighboring terminal device of the second terminal device.

Optionally, the second request further includes second indication information, where the second indication information is used to indicate the first terminal device to report the identification type of the first terminal device. The identification type includes a layer 2 identification or an application layer identification. For identification information on the first terminal device, reference is made to the preceding relevant description.

Fig. 4 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application. Referring to fig. 4, the side-link communication method includes:

401. The positioning management device distributes the identification information of the first terminal device for the first terminal device.

The identification information of the first terminal device may be referred to in the related description.

Alternatively, the location management device may assign identification information to the first terminal device based on the location service, the identification information of the first terminal device being associated with the location service. For example, the identification information of the first terminal device comprises an identification of the first terminal device for positioning. For example, the identification information of the first terminal device comprises a layer 2 identification of the first terminal device for positioning.

For example, the positioning management device assigns an application layer identification to the first terminal device. The application layer identification comprises the name of the first terminal device and the address or identification of the location management device.

For example, the location management device assigns a proximity-based service code (code) and a filter (filters) for a procedure of location discovery or the like to the first terminal device and the second terminal device, respectively, and the principle and form of the proximity-based service code and the principle and form of the filter can be analogically to the proximity-based service application code and the discovery filter assigned in the direct discovery procedure of the proximity-based service.

402. The positioning management device sends the identification information of the first terminal device to the first terminal device. Correspondingly, the first terminal device receives the identification information of the first terminal device from the positioning management device.

In this implementation manner, the first terminal device obtains the identification information allocated by the positioning management device to the first terminal device. In a side-link communication system, a first terminal device may monitor side-link messages. The first terminal device may parse the side-link message if the side-link message sent by the second terminal device includes identification information of the first terminal device.

Optionally, the embodiment shown in fig. 4 further includes step 403 and step 404.

403. The positioning management device allocates the identification information of the second terminal device to the second terminal device.

The identification information of the second terminal device is similar to the identification information of the first terminal device, and reference may be made in particular to the related description above.

404. The positioning management device sends the identification information of the second terminal device to the second terminal device. Correspondingly, the second terminal device receives the identification information of the second terminal device from the positioning management device.

In this implementation, the second terminal device receives the identification information allocated by the positioning management device for the second terminal device. In the side-link communication system, the second terminal device may monitor the side-link message. If the second terminal equipment monitors that the side link message comprises the identification information of the second terminal equipment, the second terminal equipment decodes the side link message.

Fig. 5 is a schematic diagram of another embodiment of a side-link communication method according to an embodiment of the present application. Referring to fig. 5, the side-link communication method includes:

501. the second terminal device sends first indication information or a first message to the first terminal device. The first indication information or the first message is used for indicating the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment. Correspondingly, the first terminal equipment receives the first indication information from the second terminal equipment.

For the identification information about the first terminal device, reference is made to the above-mentioned related description about the identification information of the first terminal device.

The first message itself has the effect of indicating the first terminal device to report the identification information of the first terminal device to the positioning management device. For example, the first message may be referred to as a side-link message, and the name of the first message is not limited in this application. Optionally, the first message is further used for indicating a type of identification information reported by the first terminal device.

For example, when the value of the first indication information is "1", the first terminal device is instructed to report the identification information of the first terminal device to the positioning management device.

Optionally, the first indication information is further used for indicating a type of identification information reported by the first terminal device.

Several ways of transmitting the first indication information are described below. The following examples are not limiting of the present application, as they apply to other transmission modes.

Mode 1 is described below in connection with step 501 a. Optionally, the step 501 specifically includes a step 501a and a step 501b.

501a, the second terminal device sends a notification message or a request message to the first terminal device, where the notification message or the request message includes the first indication information. Correspondingly, the first terminal device receives the notification message or the request message from the second terminal device.

For example, in the side uplink communication flow, the second terminal device transmits a notification message or a request message to the first terminal device (the first terminal device is a neighboring terminal device of the second terminal device). The notification message or the request message includes identification information of the second terminal device and first indication information. The first indication information is used for indicating the first terminal equipment to report the identification information of the first terminal equipment to the positioning management equipment. Optionally, the first indication information is further used for indicating a type of identification information reported by the first terminal device.

501b, if the first terminal device monitors that the notification message or the request message includes the identification information of the first terminal device, the first terminal device parses the notification message or the request message. The notification message or the request message includes first indication information.

The first terminal device parses the notification message or the request message to determine first indication information. The first terminal device performs the following step 502 according to the first indication information.

Optionally, the embodiment shown in fig. 5 further comprises step 501c. Step 501c may be performed after step 501 b.

501c, the first terminal device sends a response message to the second terminal device. Correspondingly, the second terminal device receives the response message from the first terminal device.

Wherein the response message comprises identification information of the first terminal device.

For example, after the first terminal device discovers or identifies the second terminal device, the first terminal device may send the response message to the second terminal device. The second terminal device receives the response message and then the first terminal device is also found or identified on behalf of the second terminal device.

Mode 2 is described below in connection with step 501d. Optionally, the step 501 specifically includes a step 501d.

501d, the second terminal device sends a feedback message to the first terminal device. The feedback message includes first indication information. Correspondingly, the first terminal device receives the feedback message from the second terminal device.

Optionally, before the step 501d, the embodiment shown in fig. 5 further includes a step 501e and a step 501f.

501e, the second terminal device sends a notification message or a request message to the first terminal device. Correspondingly, the first terminal device receives the notification message or the request message from the second terminal device.

The above step 501d is similar to the above step 501a, except that: the notification message or the request message does not carry the first indication information.

501f, if the first terminal device monitors that the notification message or the request message includes the identification information of the first terminal device, the first terminal device analyzes the notification message or the request message.

Step 501f is similar to step 501b, and reference is made specifically to the description of step 501 b.

502. The first terminal device sends the identification information of the first terminal device to the positioning management device. Correspondingly, the positioning management device receives the identification information from the first terminal device.

503. The second terminal device sends a first request to the location management device. The first request includes identification information of the first terminal device. Accordingly, the positioning management device receives the first request from the second terminal device.

Wherein the first request is for requesting a positioning measurement and/or ranging of the first terminal device and/or the second terminal device.

Optionally, the first request is a mobile originated location request (mobile originated location request, MO-LR); alternatively, the first request is an LPP message, and the implementation of the first request is not limited in this application.

Optionally, the first request includes at least one of the following requested by the first terminal device: the absolute position of the first terminal device, the relative position of the first terminal device, the absolute position of the second terminal device, the relative position of the second terminal device, the measurement quantity obtained by positioning measurement, and the distance between the first terminal device and the second terminal device.

504. The positioning management device identifies the second terminal device according to the identification information of the first terminal device sent by the first terminal device and the identification information of the first terminal device included in the first request.

In this implementation, when the second terminal device has a positioning requirement, the side-link between the second terminal device and the first terminal device is not suitable for side-link positioning. For example, the transmission paths between the first terminal device and the second terminal device are all non-line-of-sight (non line of sight, NLOS) paths. The method is unfavorable for the side-link positioning of the first terminal equipment and the second terminal equipment, and affects the accuracy of the side-link positioning between the first terminal equipment and the second terminal equipment. The second terminal device may instruct the first terminal device to report the identification information of the first terminal device. The second terminal device then requests the positioning management device to perform positioning measurements and/or ranging on the first terminal device and/or the second terminal device. The first request includes identification information of the first terminal device. The positioning management device can identify the first terminal device based on the identification information sent by the first terminal device and the identification information of the first terminal device carried by the first request. The positioning management device may then assist in side-link positioning and/or ranging the first terminal device and/or the second terminal device in a number of ways. Alternatively, the positioning management device may assist in NR positioning and/or ranging of the first terminal device and/or the second terminal device in a number of ways.

For example, the location management device may perform location measurement on the first terminal device alone and location measurement on the second terminal device alone through the NR location procedure. Optionally, the positioning management device may send measurement results obtained by positioning measurement to the first terminal device and/or the second terminal device.

For example, the positioning management device may select the third terminal device and instruct the third terminal device to perform side-link positioning and/or ranging with the first terminal device and the second terminal device, respectively. The third terminal device may send measurement results of the side-link positioning and/or ranging to the first terminal device, the second terminal device and/or the positioning management device.

In the embodiment of the application, the positioning management device receives the identification information from the first terminal device. The positioning management device receives a first request from the second terminal device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, and the first request comprises identification information of the first terminal device. The positioning management device identifies the first terminal device according to the identification information and the first request sent by the first terminal device. It follows that the positioning management device can identify the first terminal device. Thereby facilitating the positioning management device to perform positioning measurement and/or ranging for the first terminal device and/or the second terminal device. Thereby supporting the positioning management device to initiate or assist positioning measurements and/or ranging between the first terminal device and the second terminal device.

Fig. 6 is a schematic diagram of another embodiment of a method of side-link communication according to an embodiment of the present application. Referring to fig. 6, the side-link communication method includes:

601. the second terminal device sends a first request to the location management device. The first request includes a first type identification of the first terminal device. Accordingly, the positioning management device receives the first request from the second terminal device.

The first type identification of the first terminal device is acquired by the second terminal device based on the side-link. The first type identification of the first terminal device is used for the terminal device on the side link where the first terminal device is located to discover the first terminal device.

Optionally, the first request is MO-LR, or the first request is an LPP message.

Optionally, the first type identifier of the first terminal device includes a layer 2 identifier of the first terminal device or an application layer identifier of the first terminal device. Wherein the layer 2 identification comprises at least one of: source layer 2 identity, or target layer 2 identity. For the source layer 2 identity and the target layer 2 identity, refer to the relevant description above.

It should be noted that the foregoing merely illustrates some examples of application layer identification, and the foregoing technical terms merely describe application layer identification as examples based on a proximity service direct discovery flow. In practical applications, the application of other application layer identifiers related to the side links is applicable, and the application is not limited.

Optionally, the identifier for the proximity service discovery process comprises at least one of the following: based on proximity service application identification, user information identification, proximity service discovery based user equipment identification, or limited proximity service based application user equipment identification. For these identifications, reference is made to the relevant introduction in the preceding terminology.

602. The location management device sends a second request to the proximity-based service function network element, the 5G DDNMF, the proximity-based service function server, or the V2X application server. The second request includes a first type identification of the first terminal device. Accordingly, a second request from the location management device is received based on the proximity service function network element, the 5G DDNMF, the proximity service function server, or the V2X application server.

Wherein the second request is for requesting a second type of identification of the first terminal device. The second type of identification of the first terminal device is an identification of the first terminal device identifiable by the location management device. Optionally, the second type identifier of the first terminal device includes a SUPI, GUTI, or IMSI of the second terminal device.

After the positioning management device receives the first type identifier of the first terminal device, the positioning management device cannot identify the first terminal device. The location management device may request a second type of identification of the first terminal device from a proximity based service function network element, a 5G DDNMF, a proximity based service function server, or a V2X application server.

It should be noted that step 602 above shows that the location management device requests the second type identifier of the first terminal device from the proximity-based service function network element, the 5G DDNMF, the proximity-based service function server, or the V2X application server. In practical applications, the positioning management device may also obtain the second type identifier of the first terminal device from an application server or a network element related to other side uplinks, where the foregoing examples do not belong to the limitation of the present application.

603. The second type identification of the first terminal device is sent to the location management device based on a proximity service function network element, a 5G DDNMF, a proximity service function server, or a V2X application server. Accordingly, the location management device receives the second type of identification from the first terminal device based on the proximity service function network element, the 5G DDNMF, the proximity service function server, or the V2X application server.

604. The positioning management device identifies the first terminal device according to the second type identifier of the first terminal device.

In this implementation, when the second terminal device has a positioning requirement, the side-link between the second terminal device and the first terminal device is not suitable for side-link positioning. For example, the transmission path between the first terminal device and the second terminal device is a non-line-of-sight path, which is unfavorable for the side-link positioning between the first terminal device and the second terminal device, and affects the accuracy of the side-link positioning between the first terminal device and the second terminal device. The second terminal device may request to the location management device for location measurement and/or ranging of the first terminal device and/or the second terminal device. The first request includes a first type identification of the first terminal device. The location management device may request a second type of identification of the first terminal device from a proximity based service function network element, a 5G DDNMF, a proximity based service function server, or a V2X application server based on the first type of identification of the first terminal device. The positioning management device may thus identify the first terminal device based on the second type identification of the first terminal device. The first type identification of the first terminal device can thus be used and identified by the location management device upon subsequent initiation of a side-link location request. Alternatively, the positioning management device may perform positioning measurement on the first terminal device and/or the second terminal device respectively using an NR positioning procedure. For example, the positioning management device may select the third terminal device and instruct the third terminal device to perform side-link positioning and/or ranging with the first terminal device and the second terminal device, respectively. The third terminal device may send measurement results of the side-link positioning and/or ranging to the first terminal device, the second terminal device and/or the positioning management device.

In the embodiment of the application, the positioning management device receives a first request from the second terminal device, where the first request is used to request to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device. The first request includes a first type of identification of the first terminal device, the first type of identification being acquired by the second terminal device based on the side-link. The location management device then sends a second request to the proximity-based service function, 5G DDNMF, proximity-based service function server or V2X application server, the second request requesting the first type identification of the first terminal device. The second request includes a first type identification of the first terminal device. The positioning management device receives a second type identifier from a first terminal device sent by a server based on a proximity service function, a 5G DDNMF, a proximity service function or a V2X application server; the positioning management device identifies the first terminal device according to the second type identifier of the first terminal device. Thereby facilitating the positioning management device to perform positioning measurements and/or ranging for the first terminal device and/or the second terminal device.

The method embodiments described above may be implemented alone or in combination. The terminology and related techniques involved in the various embodiments may be referenced to each other. That is, the technical solutions of different embodiments that do not contradict or logically conflict with each other may be combined, and the application is not limited.

The communication device provided in the present application is described below. Referring to fig. 7, a schematic structure of a communication device 700 according to an embodiment of the present disclosure is shown. The communication device 700 comprises a processing module 701 and a transceiver module 702.

Alternatively, when the communication apparatus 700 includes a first terminal device, or a chip within the first terminal device, the communication apparatus 700 may be configured to perform all or part of the steps performed by the first terminal device in the embodiments shown in fig. 2 to 4, and particularly, reference may be made to the relevant descriptions in the method embodiments shown in fig. 2 to 4. The communication device 700 is configured to perform the following:

a processing module 701, configured to determine identification information of the communication apparatus 700, where the identification information of the communication apparatus 700 is used for a terminal device on a side link where the communication apparatus 700 is located to discover the communication apparatus 700;

a transceiver module 702, configured to send identification information of the communication device 700 to the positioning management apparatus.

In a possible implementation, the transceiver module 702 is further configured to:

a first request from the location management device requesting the communication apparatus 700 to report identification information of the communication apparatus 700 is received.

In another possible implementation, the first request further includes first indication information, where the first indication information is used to indicate an identifier type reported by the communication device 700, and the identifier type includes a layer 2 identifier or an application layer identifier.

In another possible implementation, the transceiver module 701 is further configured to:

and receiving a second request sent by a second terminal device, wherein the second request is used for requesting the communication device 700 to report the identification information of the communication device 700.

In another possible implementation, the second request further includes second indication information, where the second indication information is used to indicate an identifier type reported by the communication device 700, where the identifier type includes a layer 2 identifier or an application layer identifier.

In another possible implementation, the processing module 702 is further configured to:

monitoring for side uplink messages;

the transceiver module 701 is further configured to:

if the side-link message includes the identification information of the communication apparatus 700, receiving the side-link message from the second terminal device;

the processing module 702 is further configured to:

establishing a side uplink connection with a second terminal device;

and performing side-link positioning and/or ranging with the second terminal equipment.

the first measurement result is sent to the positioning management device, the first measurement result being obtained by the communication apparatus 700 performing side-uplink positioning and/or ranging with the second terminal device.

In another possible implementation, the identification information of the communication device 700 includes a layer 2 identification, or an application layer identification, of the communication device 700.

In another possible implementation, the layer 2 identification includes at least one of: a source layer 2 identifier, or a target layer 2 identifier;

In another possible implementation, the identifier for the proximity service discovery process includes at least one of the following: based on proximity service application identification, user information identification, restricted proximity service application based user equipment identification, or proximity service discovery based user equipment identification.

In another possible implementation, the identification information of the communication device 700 further includes at least one of: the effective time, update period, of the layer 2 identification or application layer identification of the communication device 700.

The communication device provided in the present application is described below. Referring to fig. 8, a schematic structure of a communication device 800 according to an embodiment of the present disclosure is shown. The communication device 800 comprises a processing module 801 and a transceiver module 802.

When the communication apparatus 800 includes the second terminal device, or a chip within the second terminal device, the communication apparatus 800 may be configured to perform all or part of the steps performed by the second terminal device in the embodiments shown in fig. 2 to 4, and specific reference may be made to the related descriptions in the method embodiments shown in fig. 2 to 4. The communication device 800 is configured to perform the following:

a transceiver module 802, configured to receive a third request from a positioning management device, where the third request is used to request a side uplink positioning and/or ranging between the first terminal device and the communication apparatus 800, the third request includes identification information of the first terminal device, where the identification information of the first terminal device is allocated by the positioning management device to the first terminal device, or reported by the first terminal device to the positioning management device; transmitting a side uplink message to the first terminal device, the side uplink message including identification information of the first terminal device;

a processing module 801, configured to establish a side uplink connection with a first terminal device; and performing side link positioning and/or ranging with the first terminal equipment.

In a possible implementation, the transceiver module 802 is further configured to:

a second measurement result is sent to the positioning management device, the second measurement result being obtained by performing side-link positioning and/or ranging between the communication apparatus 800 and the first terminal device.

In another possible implementation, the transceiver module 802 is further configured to:

In another possible implementation manner, the second request further includes second indication information, where the second indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

In another possible implementation, the identification information of the first terminal device includes a layer 2 identification, or an application layer identification, of the first terminal device.

In another possible implementation manner, the identification information of the first terminal device further includes at least one of the following: the effective time and update period of the source layer 2 identifier or the target layer 2 identifier of the first terminal device.

The communication device provided in the present application is described below. Referring to fig. 9, a schematic structure of a communication device 900 according to an embodiment of the disclosure is shown. The communication device 900 comprises a processing module 901 and a transceiver module 902.

Alternatively, when the communication apparatus 900 includes a location management device, or a chip within the location management device, the communication apparatus 900 may be configured to perform all or part of the steps performed by the location management device in the embodiments shown in fig. 2 to 4, and specific reference may be made to the description related to the method embodiments shown in fig. 2 to 4.

Optionally, the communication device 900 is configured to perform the following scheme:

a processing module 901, configured to obtain identification information of a first terminal device, where the identification information of the first terminal device is used for a second terminal device to discover the first terminal device;

a transceiver module 902, configured to send a third request to the second terminal device, where the third request is used to request side-link positioning and/or ranging between the first terminal device and the second terminal device, and the third request includes identification information of the first terminal device.

In a possible implementation, the transceiver module 902 is further configured to:

In another possible implementation, the transceiver module 902 is further configured to:

identification information from a first terminal device is received.

In another possible implementation manner, the first request further includes first indication information, where the first indication information is used to indicate an identifier type reported by the first terminal device, and the identifier type includes a layer 2 identifier or an application layer identifier.

In another possible implementation manner, the processing module 901 is specifically configured to:

the transceiver module 902 is further configured to:

Optionally, the communication apparatus 900 may also be used to perform all or part of the steps performed by the positioning management device in the embodiment shown in fig. 5. The communication device 900 may also be configured to perform the following:

A transceiver module 902, configured to receive identification information from a first terminal device; receiving a first request from a second terminal device, wherein the first request is used for requesting positioning measurement and/or ranging of the first terminal device and/or the second terminal device, and the first request comprises identification information of the first terminal device;

the processing module 901 is configured to identify the first terminal device according to the identification information and the first request sent by the first terminal device.

Optionally, the communication apparatus 900 may also be used to perform all or part of the steps performed by the positioning management device in the embodiment shown in fig. 6. The communication device 900 may also be used to perform the following:

a transceiver module 902, configured to receive a first request from a second terminal device, where the first request is used to request to perform positioning measurement and/or ranging on the first terminal device and/or the second terminal device, where the first request includes a first type identifier of the first terminal device, where the first type identifier is acquired by the second terminal device based on a side uplink; sending a second request to a proximity-based service function, a 5GDDNMF, a proximity-based service function server or a vehicle-to-everything V2X application server, the second request being for requesting a second type of identification of the first terminal device, the second request comprising the first type of identification of the first terminal device; receiving a second type identifier from the first terminal equipment sent by the proximity-based service function, the 5G DDNMF, the proximity-based service function server or the V2X application server;

A processing module 901, configured to identify the first terminal device according to the second type identifier of the first terminal device.

Alternatively, when the communication apparatus 900 includes a location management device, or a chip within the location management device, the communication apparatus 900 may be configured to perform all or part of the steps performed by the location management device in steps 2001 to 2007, and reference may be made to the descriptions related to steps 2001 to 2007.

A processing module 901, configured to determine identification information of a first terminal device, where the identification information of the first terminal device is used for identifying the first terminal device in a positioning and/or ranging procedure by other terminal devices;

a transceiver module 902, configured to send the identification information of the first terminal device to the second terminal device.

In one possible implementation, the transceiver module 902 is specifically configured to:

In another possible implementation, the transceiver module 902 is specifically configured to:

identification information from a first terminal device is received.

the transceiver module 902 is further configured to:

The communication device provided in the present application is described below. Referring to fig. 10, a schematic structure of a communication device 1000 according to an embodiment of the present disclosure is shown. The communication device 1000 includes a transceiver module 1001. Optionally, the communication device 1000 further comprises a processing module 1002.

Alternatively, when the communication apparatus 1000 includes the first terminal device, or a chip in the first terminal device, the communication apparatus 1000 may be configured to perform all or part of the steps performed by the first terminal device in the embodiment shown in fig. 5, and specific reference may be made to the description related to the method embodiment shown in fig. 5. The communication device 1000 is configured to perform the following:

A transceiver module 1001, configured to receive first indication information or a first message from a second terminal device, where the first indication information or the first message is used to instruct the communication apparatus 1000 to report identification information of the communication apparatus 1000 to a location management device; the identification information of the communication device 1000 is transmitted to the location management apparatus.

In a possible implementation manner, the first indication information or the first message is further used to indicate an identification type of the identification information reported by the communication device 1000, where the identification type includes a layer 2 identification or an application layer identification.

In a possible implementation, the identification information of the communication device 1000 includes a layer 2 identification, or an application layer identification, of the communication device 1000.

In another possible implementation, the identification information of the communication device 1000 further includes at least one of: the effective time, update period, of the layer 2 identification or target layer 2 identification of the communication device 1000.

Alternatively, when the communication apparatus 1000 includes the first terminal device, or the chip in the first terminal device, the communication apparatus 1000 may be configured to perform all or part of the steps performed by the first terminal device in the steps 2001 to 2007, and specific reference may be made to the related descriptions in the steps 2001 to 2007. The communication device 1000 is configured to perform the following:

a transceiver module 1001, configured to send identification information of the communication device 1000 to the positioning management apparatus, where the identification information of the communication device 1000 is used for identifying the communication device 1000 in the positioning and/or ranging procedure by other terminal apparatuses; a side-link message is received from the second terminal device, the side-link message comprising identification information of the communication apparatus 1000.

In a possible implementation manner, the processing module 1002 is configured to establish a side uplink connection with the second terminal device; and performing side-link positioning and/or ranging with the second terminal device.

In a possible implementation, the transceiver module 1001 is further configured to:

The first measurement result is sent to the positioning management device, the first measurement result being obtained by the communication apparatus 1000 performing side-uplink positioning and/or ranging with the second terminal device.

In another possible implementation, the transceiver module 1001 is further configured to:

a first request from the location management device is received requesting the communication apparatus 1000 to report identification information of the communication apparatus 1000.

In another possible implementation, the first request further includes first indication information, where the first indication information is used to indicate a type of identifier reported by the communication device 1000, and the type of identifier includes a layer 2 identifier or an application layer identifier.

and receiving a second request sent by the second terminal equipment, wherein the second request is used for requesting the communication device 1000 to report the identification information of the communication device 1000.

In another possible implementation, the second request further includes second indication information, where the second indication information is used to indicate a type of identifier reported by the communication device 1000, and the type of identifier includes a layer 2 identifier or an application layer identifier.

The communication device provided in the present application is described below. Referring to fig. 11, a schematic structure of a communication device 1100 according to an embodiment of the present disclosure is shown. The communication device 1100 comprises a transceiver module 1101. Optionally, the communication device 1100 further comprises a processing module 1102.

Alternatively, when the communication apparatus 1100 includes the second terminal device, or a chip in the second terminal device, the communication apparatus 1100 may be configured to perform all or part of the steps performed by the second terminal device in the embodiment shown in fig. 5, which may be specifically described with reference to the related description in the method embodiment shown in fig. 5. The communication apparatus 1100 is configured to perform the following scheme:

the transceiver module 1101 is configured to send first indication information or a first message to a first terminal device, where the first indication information or the first message is used to instruct the first terminal device to report identification information of the first terminal device to the positioning management device; a first request is sent to the location management device requesting location measurement and/or ranging of the first terminal device and/or the communication apparatus 1100, the first request comprising identification information of the first terminal device.

In a possible implementation manner, the first indication information or the first message is further used for indicating an identification type of the identification information reported by the first terminal device, where the identification type includes a layer 2 identification or an application layer identification.

In a possible implementation, the identification information of the first terminal device includes a layer 2 identification, or an application layer identification, of the first terminal device.

Alternatively, when the communication apparatus 1100 includes the second terminal device, or the chip in the second terminal device, the communication apparatus 1100 may be used to perform all or part of the steps performed by the second terminal device in the steps 2001 to 2007, and specific reference may be made to the related descriptions in the steps 2001 to 2007. The communication apparatus 1100 is configured to perform the following scheme:

A transceiver module 1101, configured to receive identification information of a first terminal device from a positioning management device, where the identification information of the first terminal device is used for identifying the first terminal device in a positioning and/or ranging procedure by other terminal devices; a side-link message is sent to the first terminal device, the side-link message comprising identification information of the first terminal device.

In a possible implementation manner, the transceiver module 1101 is further configured to:

In another possible implementation, the transceiver module 1101 is specifically configured to:

a third request is received from the location management device, the third request including identification information of the first terminal device, the third request requesting a sidelink location and/or ranging between the first terminal device and the communication apparatus 1100.

In another possible implementation manner, the processing module 1102 is configured to establish a side uplink connection with the first terminal device; and performing side-link positioning and/or ranging with the first terminal equipment.

In another possible implementation, the transceiver module 1101 is further configured to:

a second measurement result is sent to the positioning management device, the second measurement result being obtained by performing side-link positioning and/or ranging between the communication apparatus 1100 and the first terminal device.

A possible configuration of the communication device as a terminal device is shown below by way of fig. 12.

Fig. 12 shows a simplified schematic diagram of the structure of a terminal device. For ease of understanding and illustration, in fig. 12, a mobile phone is taken as an example of the terminal device. As shown in fig. 12, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device.

The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is mainly used for storing software programs and data.

The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal.

The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves.

Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

It should be noted that some kinds of terminal apparatuses may not have an input/output device.

When data need to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

For ease of illustration, only one memory and processor is shown in fig. 12. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, which is not limited by the embodiments of the present application.

In the embodiment of the present application, the antenna and the radio frequency circuit with the transceiver function may be regarded as a transceiver unit of the terminal device, and the processor with the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 12, the terminal device includes a transceiving unit 1210 and a processing unit 1220. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. The processing unit may also be called a processor, a processing board, a processing module, a processing device, etc.

Alternatively, the device for implementing the receiving function in the transceiver unit 1210 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1210 may be regarded as a transmitting unit, that is, the transceiver unit 1210 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, transceiver circuitry, or the like. The receiving unit may also be referred to as a receiver, or receiving circuit, among others. The transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiver unit 1210 is configured to perform the transmitting operation and the receiving operation of the first terminal device or the second terminal device in the above-described method embodiment, and the processing unit 1220 is configured to perform other operations on the first terminal device or the second terminal device except for the transmitting operation in the above-described method embodiment.

When the terminal device is a chip, the chip comprises a transceiver unit and a processing unit. The receiving and transmitting unit can be an input and output circuit or a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit or logic circuit on the chip.

The present application further provides a communication device, referring to fig. 13, in which another structural schematic diagram of a communication device 1300 in an embodiment of the present application is shown. Communication device 1300 includes a processor 1301. Optionally, the communications device 1300 further includes a memory 1302 and a transceiver 1303.

In the alternative, processor 1301, memory 1302, and transceiver 1303 are each coupled via a bus, and the memory stores computer instructions.

When the communication apparatus 1300 includes a location management device, or a chip within a location management device, the communication apparatus 1300 is configured to perform the steps performed by the location management device in the embodiments illustrated in fig. 2-6.

The embodiment of the application also provides a communication system, which comprises the second terminal equipment and the positioning management equipment. The second terminal device is configured to perform all or part of the steps performed by the second terminal device in the embodiments shown in fig. 2 to 4 and the embodiments shown in steps 2001 to 2007. The positioning management device is configured to perform all or part of the steps performed by the positioning management device in the embodiments shown in fig. 2 to 4 and the embodiments shown in steps 2001 to 2007.

Optionally, the communication system further comprises a first terminal device, where the first terminal device is configured to perform all or part of the steps performed by the first terminal device in the embodiments shown in fig. 2 to 4 and the embodiments shown in the steps 2001 to 2007.

The embodiment of the application also provides a communication system, which comprises the first terminal equipment, the second terminal equipment and the positioning management equipment. The first terminal device is configured to perform all or part of the steps performed by the first terminal device in the embodiment shown in fig. 5. The second terminal device is configured to perform all or part of the steps performed by the second terminal device in the embodiment shown in fig. 5. The positioning management device is configured to perform all or part of the steps performed by the positioning management device in the embodiment shown in fig. 5.

The embodiment of the application also provides a communication system, which comprises the second terminal equipment and the positioning management equipment. The second terminal device is configured to perform all or part of the steps performed by the second terminal device in the embodiment shown in fig. 6. The positioning management device is configured to perform all or part of the steps performed by the positioning management device in the embodiment shown in fig. 6.

The present embodiments also provide a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of the embodiments shown in the above figures 2 to 6 and the embodiments shown in the above steps 2001 to 2007.

Embodiments of the present application also provide a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform the method of the embodiments shown in fig. 2 to 6 and the embodiments shown in steps 2001 to 2007.

The embodiments of the present application further provide a chip apparatus, including a processor, configured to invoke a computer program or a computer instruction stored in a memory, so that the processor performs the method in the embodiments shown in fig. 2 to 6 and the embodiments shown in steps 2001 to 2007.

In the alternative, the processor is coupled to the memory through an interface.

Optionally, the chip device further comprises a memory, in which a computer program or computer instructions are stored.

The processor mentioned in any of the above may be a general purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the program execution of the methods in the embodiments shown in fig. 2 to 6 and the embodiments shown in steps 2001 to 2007. The memory mentioned in any of the above may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM), etc.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, a portion of the technical solution of the present application, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The above embodiments are merely for illustrating the technical solution 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of side-link communication, the method comprising:

the method comprises the steps that a first terminal device sends identification information of the first terminal device to a positioning management device, wherein the identification information of the first terminal device is used for identifying the first terminal device in positioning and/or ranging processes of other terminal devices;

the first terminal device receives a side-link message from a second terminal device, the side-link message including identification information of the first terminal device.

2. The method of claim 1, wherein before the first terminal device sends the identification information of the first terminal device to a location management device, the method further comprises:

3. The method of claim 2, wherein the first request further includes first indication information, the first indication information being used to indicate an identity type reported by the first terminal device, the identity type including a layer 2 identity or an application layer identity.

4. The method of claim 1, wherein before the first terminal device sends the identification information of the first terminal device to a location management device, the method further comprises:

5. The method of claim 4, wherein the second request further includes second indication information, the second indication information being used to indicate a type of identity reported by the first terminal device, the type of identity including a layer 2 identity or an application layer identity.

6. A method of side-link communication, the method comprising:

the second terminal equipment receives identification information of first terminal equipment from positioning management equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in positioning and/or ranging processes of other terminal equipment;

the second terminal device sends a side-link message to the first terminal device, the side-link message including identification information of the first terminal device.

7. The method of claim 6, wherein prior to the second terminal device receiving the identification information of the first terminal device from the location management device, the method further comprises:

the second terminal device sends a second request to the first terminal device, where the second request is used to request the first terminal device to report the identification information of the first terminal device to a location management device.

8. The method of claim 7, wherein the second request further includes second indication information, the second indication information being used to indicate a type of identity reported by the first terminal device, the type of identity including a layer 2 identity or an application layer identity.

9. The method according to any one of claims 6 to 8, wherein the second terminal device receives identification information of the first terminal device from a positioning management device, comprising:

the second terminal device receives a third request from the positioning management device, wherein the third request comprises identification information of the first terminal device, and the third request is used for requesting that side uplink positioning and/or ranging be performed between the first terminal device and the second terminal device.

10. A method according to any of claims 6 to 9, wherein the identification information of the first terminal device is assigned to the first terminal device by the location management device or reported to the location management device by the first terminal device.

11. The method according to any one of claims 1 to 10, further comprising:

the first terminal equipment establishes a side uplink connection with the second terminal equipment;

and performing side-link positioning and/or ranging between the first terminal equipment and the second terminal equipment.

12. A method of side-link communication, the method comprising:

The method comprises the steps that positioning management equipment determines identification information of first terminal equipment, wherein the identification information of the first terminal equipment is used for identifying the first terminal equipment in positioning and/or ranging processes of other terminal equipment;

and the positioning management equipment sends the identification information of the first terminal equipment to the second terminal equipment.

13. The method of claim 12, wherein the positioning management device sending the identification information of the first terminal device to a second terminal device comprises:

the positioning management device sends a third request to the second terminal device, wherein the third request is used for requesting the first terminal device to perform side uplink positioning and/or ranging with the second terminal device, and the third request comprises identification information of the first terminal device.

14. The method according to claim 12 or 13, wherein the positioning management device determines the identification information of the first terminal device, comprising:

the positioning management device receives identification information from the first terminal device.

15. The method of claim 14, wherein prior to the location management device receiving the identification information from the first terminal device, the method further comprises:

16. The method of claim 15, wherein the first request further includes first indication information, the first indication information being used to indicate an identity type reported by the first terminal device, the identity type including a layer 2 identity or an application layer identity.

17. The method according to claim 12 or 13, wherein the positioning management device determines the identification information of the first terminal device, comprising:

the positioning management equipment distributes the identification information of the first terminal equipment for the first terminal equipment;

the method further comprises the steps of:

and the positioning management equipment sends the identification information of the first terminal equipment to the first terminal equipment.

18. The method according to any of claims 1 to 17, wherein the identification information of the first terminal device comprises a layer 2 identification or an application layer identification of the first terminal device.

19. The method of claim 18, wherein the layer 2 identification comprises at least one of: a source layer 2 identifier, or a target layer 2 identifier;

20. The method of claim 19, wherein the identification for proximity-based service discovery procedure comprises at least one of: based on proximity service application identification, user information identification, restricted proximity service application user equipment identification RPAUID, or proximity service discovery user equipment identification PDUID.

21. The method according to any of the claims 18 to 20, characterized in that the identification information of the first terminal device further comprises at least one of the following: the effective time and the update period of the source layer 2 identifier or the target layer 2 identifier of the first terminal device.

22. A communication system comprising a second terminal device for performing the method of any of claims 6 to 11, 18 to 21 and a positioning management device for performing the method of any of claims 12 to 21.

23. The communication system according to claim 22, characterized in that the communication system further comprises a first terminal device for performing the method according to any of claims 1 to 5, 11.

24. A communication device, the communication device comprising a transceiver module;

the transceiver module is configured to perform the transceiver operations of any one of claims 1 to 5, 11; or,

the transceiver module is configured to perform the transceiving operations according to any of claims 6 to 11, 18 to 21.

25. The communication device of claim 24, further comprising a processing module;

when the transceiver module is configured to perform the transceiver operations of any one of claims 1 to 5, 11, the processing module is configured to perform the processing operations of any one of claims 1 to 5, 11; or,

when the transceiver module is configured to perform the transceiver operations of any one of claims 6 to 11, 18 to 21, the processing module is configured to perform the processing operations of any one of claims 6 to 11, 18 to 21.

26. A communication device, comprising a transceiver module and a processing module;

The transceiver module is configured to perform the transceiver operations of any one of claims 12 to 21, and the processing module is configured to perform the processing operations of any one of claims 12 to 21.

27. A communication device comprising a processor for executing a computer program or computer instructions in a memory to perform the method of any of claims 1 to 5, 11; or to perform the method of any one of claims 6 to 11, 18 to 21; or to perform the method of any one of claims 12 to 21.

28. A computer readable storage medium, having stored thereon a computer program which, when executed by a communication device, causes the communication device to perform the method of any of claims 1 to 5, 11, or causes the communication device to perform the method of any of claims 6 to 11, 18 to 21, or causes the communication device to perform the method of any of claims 12 to 21.