Communication method, device, system, and storage medium

Abstract

The embodiment of the disclosure discloses a communication method, device and computer readable storage medium, and relates to the technical field of communication. The communication method comprises the following steps: determining a first capability of a first terminal; and sending second information to a first network function, wherein the second information comprises the first capability of the first terminal, and the second terminal is used for processing a first service associated with the first terminal. According to the embodiment of the disclosure, the second terminal determines the first capability of the first terminal, and transmits the first capability of the first terminal to the first network function, and the second terminal is used for processing the first service associated with the first terminal, so that the communication terminal involved in the process of the first service can be avoided.

Description

Communication method, device, system and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, the present disclosure relates to a communication method, device, system and storage medium. BACKGROUND

[0002] To support direct communication between terminals, a sidelink (SL) communication mode is introduced. Ranging refers to determining the distance between two or more terminals, or the direction from one terminal to another terminal, through a PC5 interface. The PC5 interface refers to a communication interface between terminals, such as a short-distance direct communication interface between vehicles, people, and road infrastructure. Sidelink SL positioning refers to estimating the position of a terminal being positioned based on the sidelink SL. For example, ranging or sidelink SL positioning of a terminal being positioned (e.g., a target terminal) can be based on information of a terminal (e.g., a located terminal (located UE)). The terminal referred to may, for example, be a SL reference terminal whose position is known or can be known in ranging or sidelink SL positioning. For another example, the relative position information of a terminal (e.g., a target terminal) and another terminal (e.g., a SL reference terminal (sidelink reference UE)) can be determined through ranging or sidelink SL positioning. The sidelink SL positioning can also be referred to as side chain positioning.

[0003] SUMMARY

[0004] The embodiments of the present disclosure provide a communication method, device, system and storage medium.

[0005] In a first aspect, a communication method is provided. The method is performed by a second terminal, and the method comprises:

[0006] determining a first capability of a first terminal;

[0007] sending, to a first network function, second information, the second information comprising the first capability of the first terminal;

[0008] The second terminal is configured to process a first service associated with the first terminal.

[0009] In a second aspect, a communication method is provided. The method is performed by a first terminal, and the method comprises:

[0010] sending, to a second terminal, first information, the first information comprising a first capability of the first terminal, the second terminal being configured to process a first service associated with the first terminal.

[0011] In a third aspect, a communication method is provided, the method being performed by a first network function, the method comprising:

[0012] receiving second information sent by a second terminal, the second information comprising a first capability of the first terminal;

[0013] sending, to a second network function, third information, the third information comprising the first capability of the first terminal;

[0014] wherein the second terminal is configured to process a first service associated with the first terminal.

[0015] In a fourth aspect, a communication method is provided, the method being performed by a second network function, the method comprising:

[0016] receiving third information sent by a first network function, the third information comprising a first capability of a first terminal;

[0017] determining at least one third terminal based on the first capability of the first terminal;

[0018] wherein a first capability of each third terminal of the at least one third terminal matches the first capability of the first terminal, and the at least one third terminal is configured to process a first service associated with the first terminal.

[0019] In a fifth aspect, a first terminal is provided, comprising:

[0020] a first transceiver configured to send, to a second terminal, first information, the first information comprising a first capability of the first terminal, the second terminal being configured to process a first service associated with the first terminal.

[0021] In a sixth aspect, a second terminal is provided, comprising:

[0022] a second processing module configured to determine a first capability of a first terminal;

[0023] a second transceiver configured to send, to a first network function, second information, the second information comprising the first capability of the first terminal, wherein the second terminal is configured to process a first service associated with the first terminal.

[0024] In a seventh aspect, a first network function is provided, comprising:

[0025] The third transceiver module is configured to receive second information sent by a second terminal, the second information comprising a first capability of the first terminal; and send third information to a second network function, the third information comprising the first capability of the first terminal; wherein the second terminal is configured to process a first service associated with the first terminal.

[0026] In an eighth aspect, a second network function is provided, comprising:

[0027] The fourth transceiver module is configured to receive third information sent by a first network function, the third information comprising at least one first terminal;

[0028] The fourth processing module is configured to determine at least one third terminal based on a first capability of the first terminal;

[0029] wherein the first capability of each third terminal in the at least one third terminal matches the first capability of the first terminal, and the at least one third terminal is configured to process a first service associated with the first terminal.

[0030] In a ninth aspect, a communication apparatus is provided, comprising:

[0031] one or more processors;

[0032] wherein the processor is configured to execute the optional implementation of the first aspect.

[0033] In a tenth aspect, a communication apparatus is provided, comprising:

[0034] one or more processors;

[0035] wherein the processor is configured to execute the optional implementation of the second aspect.

[0036] In an eleventh aspect, a communication apparatus is provided, comprising:

[0037] one or more processors;

[0038] wherein the processor is configured to execute the optional implementation of the third aspect.

[0039] In a twelfth aspect, a communication apparatus is provided, comprising:

[0040] one or more processors;

[0041] wherein the processor is configured to execute the optional implementation of the fourth aspect.

[0042] In a thirteenth aspect, the embodiments of the present disclosure provide a communication system, comprising: a first network function and a second network function, wherein the first network function is configured to implement the method described in the third aspect, and the second network function is configured to implement the method described in the fourth aspect.

[0043] In a fourteenth aspect, the embodiments of the present disclosure provide a computer readable storage medium, which stores executable instructions. The executable instructions are loaded and executed by a processor to implement the method described in the first aspect, the second aspect, the third aspect, or the optional implementation of the fourth aspect.

[0044] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure, together with the description.

[0046] FIG. 1 is a schematic diagram of a structure of a wireless communication system according to an exemplary embodiment;

[0047] FIG. 2 is a flow chart of a communication method according to an exemplary embodiment;

[0048] FIG. 2a is a flow chart of a communication method according to an exemplary embodiment;

[0049] FIG. 2b is a flow chart of a communication method according to an exemplary embodiment;

[0050] FIG. 3 is a flow chart of a communication method according to an exemplary embodiment;

[0051] FIG. 4 is a flow chart of a communication method according to an exemplary embodiment;

[0052] FIG. 5 is a flow chart of a communication method according to an exemplary embodiment;

[0053] FIG. 6 is a flow chart of a communication method according to an exemplary embodiment;

[0054] FIG. 7 is a flow chart of a communication method according to an exemplary embodiment;

[0055] FIG. 8a is a schematic diagram of a structure of a first network function according to an exemplary embodiment;

[0056] FIG. 8b is a schematic diagram of a structure of a second network function according to an exemplary embodiment;

[0057] FIG. 8c is a structural schematic diagram of a third network function according to an embodiment of the present disclosure;

[0058] FIG. 8d is a structural schematic diagram of a second terminal according to an embodiment of the present disclosure;

[0059] FIG. 9a is a structural schematic diagram of a communication device according to an embodiment of the present disclosure;

[0060] FIG. 9b is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0061] The present disclosure provides a communication method, a communication device, a communication system, and a storage medium.

[0062] In a first aspect, the present disclosure provides a communication method, the method is performed by a second terminal, and the method comprises:

[0063] determining a first capability of a first terminal;

[0064] sending second information to a first network function, the second information comprising the first capability of the first terminal;

[0065] The second terminal is configured to process a first service associated with the first terminal.

[0066] In the above embodiments, the second terminal determines the first capability of the first terminal and transmits the first capability of the first terminal to the first network function, and the second terminal is configured to process the first service associated with the first terminal, so that the first terminal that cannot communicate, for example, cannot discover a corresponding terminal or cannot communicate with a corresponding terminal, is avoided in the process of performing the first service.

[0067] In some embodiments of the first aspect, the determination of the first capability of the first terminal comprises at least one of the following:

[0068] receiving first information sent by the first terminal, the first information comprising the first capability of the first terminal;

[0069] determining the first capability of the first terminal according to local records or configuration information;

[0070] determining the first capability of the first terminal according to V2X communication or 5G proximity service communication between the first terminal and the second terminal.

[0071] In the above embodiments, the second terminal can determine the first capability of the first terminal in multiple ways, so that the way of obtaining the first capability of the first terminal is more flexible, thereby adapting to different service requirements. In some embodiments of the first aspect, the first information comprises a first request for triggering the first service.

[0072] In some embodiments of the first aspect, in some embodiments, the first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

[0073] In some embodiments of the first aspect, in some embodiments, the first information further comprises a parameter of the first request, the parameter being used by a second terminal to determine the first request.

[0074] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0075] determining the second information based on the first information;

[0076] wherein the second information comprises a third request for triggering the first service.

[0077] In some embodiments of the first aspect, in some embodiments, the determining the second information based on the first information comprises at least one of:

[0078] determining a first capability of a first terminal comprised in the second information based on a first capability of a first terminal comprised in the first information;

[0079] determining a third request for the first service comprised in the second information based on a first request for the first service comprised in the first information;

[0080] determining that the third request for the first service comprised in the second information is the first request for the first service comprised in the first information;

[0081] determining the third request for the first service comprised in the second information based on a first capability of a first terminal and a parameter of a first request for the first service comprised in the first information.

[0082] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0083] sending a second request to the first terminal, the second request being used to request a first capability of the first terminal. In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0084] receiving fourth information sent by the first terminal, the fourth information comprising: a first request for triggering the first service, or a parameter of the first request, the parameter being used by a second terminal to determine the first request.

[0085] In some embodiments of the first aspect, in some embodiments, the method further comprises:

[0086] determining the second information based on the first information and / or the fourth information;

[0087] wherein the second information comprises a third request for triggering the first service.

[0088] In some embodiments of the first aspect, determining the second information based on the first information and / or the fourth information comprises at least one of:

[0089] determining a first capability of a first terminal comprised in the second information based on a first capability of a first terminal comprised in the first information;

[0090] determining a third request for the first service comprised in the second information based on a first request for the first service comprised in the fourth information;

[0091] determining the third request for the first service comprised in the second information as the first request for the first service comprised in the fourth information;

[0092] determining a third request for the first service comprised in the second information based on a first capability of a first terminal comprised in the first information and a parameter of the first request comprised in the fourth information.

[0093] In some embodiments of the first aspect, the third request in the second information comprises the first capability, or the second information comprises the first capability and the third request does not comprise the first capability.

[0094] In some embodiments of the first aspect, the third request for the first service is a terminal-originated request for a first service associated with the first terminal.

[0095] In some embodiments of the first aspect, the first capability of the first terminal comprises at least one of:

[0096] a capability of ranging and sidelink positioning;

[0097] a capability of V2X communication;

[0098] a capability of 5G proximity services;

[0099] a capability of the first service via V2X communication over PC5;

[0100] a capability of the first service via 5G proximity services.

[0101] In some embodiments of the first aspect, the first network function is a network function for access and mobility management serving the second terminal.

[0102] With reference to the first aspect, in some embodiments, the first service comprises a ranging service and / or a sidelink positioning service.

[0103] According to a second aspect, the present disclosure provides a communication method, the method is performed by a first terminal, and the method comprises:

[0104] sending, to a second terminal, first information, the first information comprising a first capability of the first terminal, the second terminal being configured to process a first service associated with the first terminal.

[0105] With the above embodiments, the first terminal can provide the first capability of the first terminal to the second terminal, and the second terminal is configured to process the first service associated with the first terminal, so that the first terminal can avoid involving a terminal that cannot communicate in the process of the first service, for example, a terminal that cannot discover a corresponding terminal or a terminal that cannot communicate with a corresponding terminal.

[0106] With reference to the second aspect, in some embodiments, the first information comprises a first request for triggering the first service.

[0107] In the above embodiments, the first terminal can further send, to the second terminal, a first request for triggering the first service, so as to initiate the first service.

[0108] With reference to the second aspect, in some embodiments, the first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

[0109] In the above embodiments, the first capability of the first terminal can be transmitted in different manners, so that the acquisition of the first capability of the first terminal is more flexible.

[0110] With reference to the second aspect, in some embodiments, the first request is a terminal-originated request of the first service.

[0111] With reference to the second aspect, in some embodiments, the method further comprises:

[0112] receiving a second request sent by the second terminal, the second request being used for requesting the first capability of the first terminal.

[0113] In the above embodiments, the first terminal can provide its first capability to the second terminal in response to the request of the second terminal, so that the demand of the second terminal can be met.

[0114] With reference to the second aspect, in some embodiments, the method further comprises:

[0115] receive fourth information sent by the second terminal, the fourth information comprising: a first request for triggering the first service, or a parameter of the first request, the parameter being used by the second terminal to determine the first request.

[0116] In some embodiments of the second aspect, the first information further comprises a parameter of the first request of the first service, the parameter being used by the second terminal to determine the first request.

[0117] In the above embodiments, the first terminal can further provide the first terminal's first capability and the parameter of the first request of the first service to the second terminal, so that the second terminal transmits the first terminal's first capability to the network side, thereby providing a basis for the network side to determine subsequent terminal positioning.

[0118] In some embodiments of the second aspect, the first capability of the first terminal comprises at least one of:

[0119] a capability of ranging and sidelink positioning;

[0120] a capability of V2X communication;

[0121] a capability of 5G proximity service;

[0122] a capability of performing the first service through V2X communication over PC5;

[0123] a capability of performing the first service through 5G proximity service.

[0124] In some embodiments of the second aspect, the first service comprises ranging and / or sidelink positioning service.

[0125] In a third aspect, the embodiments of the present disclosure provide a communication method, the method being performed by a first network function, and the method comprising:

[0126] receiving second information sent by a second terminal, the second information comprising a first capability of a first terminal;

[0127] sending third information to a second network function, the third information comprising the first capability of the first terminal;

[0128] The second terminal is used to process a first service associated with the first terminal.

[0129] In some embodiments of the third aspect, the second information is determined based on first information received by the second terminal from the first terminal, the first information comprising the first capability of the first terminal, and the second information comprising a third request for triggering the first service.

[0130] In some embodiments of the third aspect, in some embodiments, the first information comprises a first request for triggering the first service.

[0131] In some embodiments of the third aspect, in some embodiments, the first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

[0132] In some embodiments of the third aspect, in some embodiments, the first information further comprises a parameter of the first request for the first service, the parameter being used by the second terminal to determine the first request.

[0133] In some embodiments of the third aspect, in some embodiments, the second information is determined based on the first information, comprising at least one of:

[0134] The first capability of the first terminal comprised in the second information is determined based on the first capability of the first terminal comprised in the first information;

[0135] The third request for the first service comprised in the second information is determined based on the first request for the first service comprised in the first information;

[0136] The third request for the first service comprised in the second information is determined as the first request for the first service comprised in the first information;

[0137] The third request for the first service comprised in the second information is determined based on the first capability of the first terminal and the parameter of the first request for the first service comprised in the first information.

[0138] In some embodiments of the third aspect, in some embodiments, the second information is determined based on the first information and / or fourth information received by the second terminal from the first terminal;

[0139] In some embodiments of the third aspect, in some embodiments, the first information comprises a first capability of the first terminal, and the second information comprises a third request for triggering the first service;

[0140] The fourth information comprises: a first request for triggering the first service, or a parameter of the first request, the parameter being used by the second terminal to determine the first request.

[0141] In some embodiments of the third aspect, in some embodiments, the second information is determined based on the first information and / or fourth information, comprising at least one of:

[0142] The first capability of the first terminal included in the second information is determined based on the first capability of the first terminal included in the first information;

[0143] The third request of the first service included in the second information is determined based on the first request of the first service included in the fourth information;

[0144] The third request of the first service included in the second information is determined as the first request of the first service included in the fourth information;

[0145] The third request of the first service included in the second information is determined based on the first capability of the first terminal included in the first information and the parameter of the first request included in the fourth information.

[0146] With reference to the third aspect, in some embodiments, the third request in the second information includes the first capability, or the second information includes the first capability and the third request does not include the first capability.

[0147] With reference to the third aspect, in some embodiments, the third request of the first service is a terminal-originated request of the first service associated with the first terminal.

[0148] With reference to the third aspect, in some embodiments, the first capability of the first terminal includes at least one of:

[0149] a capability of ranging and sidelink positioning;

[0150] a capability of V2X communication;

[0151] a capability of 5G proximity service;

[0152] a capability of the first service through V2X communication over PC5;

[0153] a capability of the first service through 5G proximity service.

[0154] With reference to the third aspect, in some embodiments, the first network function is a network function for access and mobility management serving the second terminal, and the second network function is a network function for positioning management serving the second terminal.

[0155] With reference to the third aspect, in some embodiments, the first service includes a ranging and / or sidelink positioning service.

[0156] In a fourth aspect, the embodiments of the present disclosure provide a communication method, the method being performed by a second network function, and the method comprising:

[0157] receive third information sent by the first network function, the third information comprising a first capability of the first terminal;

[0158] determine at least one third terminal based on the first capability of the first terminal;

[0159] wherein the first capability of each of the at least one third terminal matches the first capability of the first terminal, and the at least one third terminal is used for a first service associated with the first terminal.

[0160] The above embodiments can avoid involving terminals that cannot communicate, for example, cannot discover corresponding terminals or cannot communicate with corresponding terminals, in the process of performing the first service, by determining at least one third terminal that matches the first capability of the first terminal.

[0161] In some embodiments in combination with the fourth aspect, in some embodiments, the first capability comprises at least one of:

[0162] a capability of ranging and sidelink positioning;

[0163] a capability of V2X communication;

[0164] a capability of 5G proximity service;

[0165] a capability of performing the first service through V2X communication over PC5;

[0166] a capability of performing the first service through 5G proximity service.

[0167] In some embodiments in combination with the fourth aspect, in some embodiments, the first network function is a network function for access and mobility management serving the second terminal, and the second network function is a network function for positioning management serving the second terminal.

[0168] In some embodiments in combination with the fourth aspect, in some embodiments, the first service comprises a ranging and / or sidelink positioning service.

[0169] In a fifth aspect, the embodiments of the present disclosure provide a first terminal, comprising:

[0170] a first transceiver module, configured to send first information to a second terminal, the first information comprising a first capability of the first terminal, and the second terminal being configured to process a first service associated with the first terminal.

[0171] In a sixth aspect, the embodiments of the present disclosure provide a second terminal, comprising:

[0172] a second processing module, configured to determine a first capability of a first terminal;

[0173] The second transceiver module is configured to send second information to the first network function, the second information comprising a first capability of the first terminal; and wherein the second terminal is configured to process a first service associated with the first terminal.

[0174] In a seventh aspect, an embodiment of the present disclosure provides a first network function, comprising:

[0175] The third transceiver module is configured to receive second information sent by the second terminal, the second information comprising a first capability of the first terminal; and further configured to send third information to the second network function, the third information comprising the first capability of the first terminal; and wherein the second terminal is configured to process a first service associated with the first terminal.

[0176] In an eighth aspect, an embodiment of the present disclosure provides a second network function, comprising:

[0177] The fourth transceiver module is configured to receive third information sent by the first network function, the third information comprising at least one first terminal.

[0178] The fourth processing module is configured to determine at least one third terminal based on the first capability of the first terminal.

[0179] Each of the at least one third terminal has a first capability matching the first capability of the first terminal, and the at least one third terminal is configured to process a first service associated with the first terminal.

[0180] In a ninth aspect, an embodiment of the present disclosure provides a communication apparatus, comprising:

[0181] One or more processors;

[0182] The processor is configured to execute the optional implementation of the first aspect.

[0183] In a tenth aspect, an embodiment of the present disclosure provides a communication apparatus, comprising:

[0184] One or more processors;

[0185] The processor is configured to execute the optional implementation of the second aspect.

[0186] In an eleventh aspect, an embodiment of the present disclosure provides a communication apparatus, comprising:

[0187] One or more processors;

[0188] The processor is configured to execute the optional implementation of the third aspect.

[0189] In a twelfth aspect, an embodiment of the present disclosure provides a communication apparatus, comprising:

[0190] one or more processors;

[0191] The processor is configured to perform the optional implementation of the fourth aspect.

[0192] In a thirteenth aspect, the embodiments of the present disclosure provide a communication system, comprising: a first network function and a second network function, wherein the first network function is configured to implement the method described in the optional implementation of the third aspect, and the second network function is configured to implement the method described in the optional implementation of the fourth aspect.

[0193] In a fourteenth aspect, the embodiments of the present disclosure provide a computer-readable storage medium, wherein the computer-readable storage medium stores executable instructions, and the executable instructions are loaded and executed by the processor to implement the method described in the optional implementation of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0194] In a fifteenth aspect, the embodiments of the present disclosure provide a program product, and when the program product is executed by a communication device, the communication device is caused to perform the method described in the optional implementation of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0195] In a sixteenth aspect, the embodiments of the present disclosure provide a computer program, and when the computer program is executed on a computer, the computer is caused to perform the method described in the optional implementation of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0196] In a seventeenth aspect, the embodiments of the present disclosure provide a chip or a chip system, and the chip or the chip system comprises processing circuitry configured to perform the method described in the optional implementation of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0197] It can be understood that the above-described apparatus for random access, communication device, communication system, storage medium, program product, and computer program are all used to perform the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are referred to the beneficial effects in the corresponding method, which will not be described here. The communication device can be a terminal or a network device.

[0198] The embodiments of the present disclosure propose a communication method, apparatus, communication device, communication system, and storage medium.

[0199] In some embodiments, the communication method and the communication method, the apparatus for random access and the information processing apparatus, the communication apparatus, and the information processing system can be replaced with each other, and the information processing system and the communication system can be replaced with each other.

[0200] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the embodiments of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing part of the steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, part or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with optional implementation of other embodiments.

[0201] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0202] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the embodiments of the present disclosure.

[0203] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "said", "preceding", "this" and the like, can represent "one and only one", and can also represent "one or more", "at least one" and the like. For example, in the case of using articles such as "a", "an", "the" and the like in English, the noun after the article can be understood as singular expression, and can also be understood as plural expression.

[0204] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0205] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.

[0206] The description manner such as "at least one of A, B, C, …", "A and / or B and / or C, …" and the like in the embodiments of the present disclosure includes any one of A, B, C, … existing alone, and also includes any combination of any multiple of A, B, C, …, each of which can exist alone; for example, "at least one of A, B, C" includes a case of A alone, a case of B alone, a case of C alone, a case of combination of A and B, a case of combination of A and C, a case of combination of B and C, and a case of combination of A and B and C; for example, A and / or B includes a case of A alone, a case of B alone, and a case of combination of A and B.

[0207] In some embodiments, the description manner such as "A in a case, B in another case", "in response to a case A, in response to another case B" and the like can include the following technical solutions according to the case: A is executed regardless of B, that is, A in some embodiments; B is executed regardless of A, that is, B in some embodiments; A and B are selectively executed, that is, from A and B, execution is selected in some embodiments; A and B are both executed, that is, A and B in some embodiments. When there are more branches of A, B, C and the like, it is similar to the above.

[0208] The prefix words "first", "second" and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different; for another example, the description object is "information", and "first configuration" and "second configuration" can be the same information or different information, and the contents thereof can be the same or different.

[0209] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0210] In some embodiments, the terms "in response to", "in response to determining", "in the event that", "when", "if", and the like can be replaced with each other.

[0211] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", and the like can be replaced with each other.

[0212] In some embodiments, an apparatus and the like can be interpreted as an entity, and can also be interpreted as virtual, and the name thereof is not limited to the name described in the embodiments, and the terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like can be replaced with each other.

[0213] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0214] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", "client", and the like can be replaced with each other.

[0215] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, for a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (for example, also referred to as device-to-device (D2D), vehicle-to-everything (V2X), and the like), the embodiments of the present disclosure can also be applied. In this case, it can also be configured as a structure in which the terminal has all or part of the functions of the access network device. In addition, the language of "uplink", "downlink", and the like can also be replaced with language corresponding to the inter-terminal communication (for example, "side").

[0216] For example, the uplink channel, the downlink channel, and the like can be replaced with a sidelink channel, and the uplink, the downlink, and the like can be replaced with a sidelink.

[0217] In some embodiments, the terms "uplink", "uplink", "physical uplink", and the like can be replaced with each other, the terms "downlink", "downlink", "physical downlink", and the like can be replaced with each other, and the terms "side", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct connection link", "direct connection communication", "direct connection link communication", and the like can be replaced with each other.

[0218] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0219] In some embodiments, the terms "physical downlink shared channel (PDSCH)", "DL data", and the like can be replaced with each other, and the terms "physical uplink shared channel (PUSCH)", "UL data", and the like can be replaced with each other.

[0220] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.

[0221] In some embodiments, "network" can be interpreted as devices (for example, access network devices, core network devices, and the like) contained in the network.

[0222] In some embodiments, the acquisition of data, information, and the like can comply with the laws and regulations of the country where the location is located.

[0223] In some embodiments, data, information, and the like can be acquired after obtaining user consent.

[0224] FIG. 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0225] As shown in FIG. 1, the communication system 100 includes terminals (for example, terminal 101a, terminal 101b) and network devices 102.

[0226] In some embodiments, the terminal includes at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-capable automobile, a smart automobile, a tablet (Pad), a wireless transceiver-equipped computer, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, but is not limited thereto.

[0227] In some embodiments, the terminal can include a plurality, and the terminal 101a and the terminal 101b shown in FIG. 1 can be any two of the plurality of terminals.

[0228] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0229] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0230] In some embodiments, the technical solutions of the embodiments of the present disclosure can be applied to the Open RAN architecture, at this time, the interfaces between or within the network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the flow and information interaction between the internal interfaces can be realized through software or programs.

[0231] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the network device, and some protocol layer functions are controlled by the CU, and the remaining or all protocol layer functions are distributed in the DU and controlled by the CU, but not limited thereto.

[0232] In some embodiments, the access network device can be one device, or a plurality of devices or device groups, and respectively includes all or part of the first network element, the second network element, and the like. The network element can be virtual or physical. The network device includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), a next generation core (NGC), and the like.

[0233] In some embodiments, the core network device can be one device, including one or more network elements, or a plurality of devices or device groups, and respectively includes all or part of the one or more network elements. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), a next generation core (NGC), and the like.

[0234] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.

[0235] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1, or part of the main bodies, but are not limited thereto. The main bodies shown in FIG. 1 are illustrative, and the communication system can include all or part of the main bodies in FIG. 1, or other main bodies other than those in FIG. 1. The number and form of each main body is arbitrary, and the connection relationship between the main bodies is illustrative. The main bodies can be connected or not connected, and the connection can be in any manner, can be direct or indirect, and can be wired or wireless.

[0236] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), systems using other random access technologies, next-generation systems expanded based thereon, and the like. In addition, a plurality of systems can be combined (for example, a combination of LTE or LTE-A and 5G, and the like).

[0237] For the convenience of understanding, the terms of the present disclosure are explained below.

[0238] 1. Ranging-based services and sidelink positioning

[0239] Ranging: refers to determining the distance between two or more UEs and / or the direction between one UE (i.e., target UE) and another UE (i.e., reference UE) over PC5 interface. Sidelink positioning refers to positioning a UE using PC5. Ranging-based services and sidelink positioning include distance measurement, direction measurement, or both.

[0240] Positioning: a function that can detect a geographical position and a speed (e.g., mobile terminal).

[0241] Network-based Operation: Ranging / sidelink positioning operation involving 5GC NFs for service request handling and result computation.

[0242] Ranging / SL Positioning Application Identifier: a globally unique identifier used to identify a specific ranging / SL positioning application, which can be mapped to a V2X service type or a Proximity-based Service, ProSe, identifier.

[0243] Relative position: a position estimate of a UE relative to other network functions or relative to other UEs.

[0244] Relative velocity: a velocity estimate of a UE relative to another UE.

[0245] Sidelink Positioning: positioning a UE using PC5 to obtain absolute position, relative position, or ranging information.

[0246] 2、Ranging Role

[0247] Located UE: a SL reference UE whose position is known or can be known using Uu-based positioning. A located UE can be used to determine the position of a target UE using sidelink positioning.

[0248] SL Reference UE: a UE that supports positioning of a target UE, e.g., by transmitting and / or receiving reference signals for positioning using sidelink, providing positioning-related information, etc. Exemplarily, a SL reference UE can also be referred to as an “anchor UE”.

[0249] SL positioning client UE (SL Positioning Client UE): A third party UE other than SL reference UE and target UE, which initiates a ranging / sidelink positioning service request on behalf of the application residing on it.

[0250] SL positioning server UE (SL Positioning Server UE): A UE providing methods for sidelink-based positioning and ranging service determination, assistance data distribution and / or position computation functionality. It interacts with other UEs over PC5 as needed to determine ranging or SL positioning methods, distribute assistance data and compute the position of the target UE. The target UE or SL reference UE can act as SL positioning server UE if any of the functionalities are supported.

[0251] Target UE (Target UE): A UE that measures its distance, direction and / or position with the support of one or more SL reference UEs using Sidelink in ranging-based services and Sidelink positioning.

[0252] The ranging or SL positioning position result can include absolute position, relative position or distance and direction, depending on the service request. If the target UE decides to initiate the SL-MO-LR procedure, one or more SL reference UEs are included in the service request, or one or more positioning UEs.

[0253] Optionally, the LMF can pre-configure a list of candidate positioning UEs, which includes, for example, the capabilities, stationary information and location information of the positioning UEs (e.g. RSUs or operator-deployed positioning UEs).

[0254] Optionally, the LMF can provide the target UE with a list of candidate positioning UEs. The target UE can discover and select one or more positioning UEs to be used in the ranging or SL positioning procedure.

[0255] Optionally, in the case of discovering multiple candidate positioning UEs, the positioning UEs are selected from the list of candidate positioning UEs.

[0256] Optionally, the positioning UEs are selected based on the following:

[0257] The candidate list of positioning UEs (if available);

[0258] The capabilities of the candidate positioning UEs, for example: supported sidelink positioning methods;

[0259] The required Quality of Service (QoS) of the positioning service;

[0260] whether the serving Public Land Mobile Network (PLMN) of the candidate positioning UE is the same as the serving PLMN of the target UE;

[0261] information of the UE, including whether the UE is in coverage, location of the UE, etc.

[0262] Optionally, when the LMF determines SL positioning of the target UE and triggers discovery of the positioning UE, the LMF can decide that the “LMF or target UE” selects the positioning UE. If the decision is that the target UE selects the positioning UE, the target UE discovers and selects the positioning UE and sends the selected positioning UE to the LMF.

[0263] Optionally, in the process of SL-MO-LR involving the Location Management Function (LMF) side, SL-MT-LR involving the Location Management Function (LMF) side, 5GC-MT-LR using SL positioning, or 5GC-MO-LR using SL positioning, the LMF can provide the target UE with an indication of the target UE selecting the UE, for example: positioning UE selection, the LMF can provide the target UE with a list of candidate positioning UEs configured in the LMF, and the target UE can obtain the UE capabilities via the SideLink Positioning Protocol (SLPP) message in the process of capability exchange between the target UE and the candidate positioning UE over the PC5 link established between the target UE and the candidate positioning UE.

[0264] The UE discovery supporting model A and model B discovery (including commercial and public safety use cases) are supported for 5G Proximity-based Services (ProSe). And the process of V2X communication over the PC5 reference point is used for the discovery of UEs with V2X capability.

[0265] According to the type of the UE (for example, supporting V2X or supporting 5G ProSe), the RSPP transmission between UEs in the process of V2X communication over PC5 or the process of 5G ProSe direct communication is defined in the protocol.

[0266] Therefore, the target UE can support:

[0267] Ranging and sidelink positioning over V2X communication over PC5;

[0268] Ranging and sidelink positioning over 5G ProSe;

[0269] or both of the above.

[0270] However, in the positioning procedure, in case of capability mismatch between the target UE and the positioning UEs in the list of candidate positioning UEs provided via the LMF, the target UE will not be able to discover or communicate with such positioning UEs. For example, if the target UE only supports ranging and sidelink positioning over V2X communication over PC5, the LMF needs to avoid including in the list of candidate positioning UEs a positioning UE that only supports ranging and sidelink positioning over 5G ProSe, because the target UE will not be able to communicate with such positioning UE.

[0271] In some embodiments, in a 5GC-MO-LR procedure using SL positioning, a 5GC-MT-LR procedure using SL positioning or a 5GC-MT-LR procedure using SL positioning method, UE1 (the UE communicating with the network to process the MO or MT Ranging / SL positioning service request) is the target UE, the LMF also supports providing candidate positioning UEs to UE1.

[0272] In some embodiments, the following is agreed in the initial registration initiation and mobility and periodic registration update initiation procedures:

[0273] If the UE supports ranging and sidelink positioning as specified in existing standards and supports:

[0274] a) V2X communication over PC5;

[0275] b) 5G ProSe Direct Discovery and 5G ProSe Direct Communication; or

[0276] c) both a) and b),

[0277] The UE shall set:

[0278] a) RSP CP5 bit to "Support of Ranging and Sidelink Positioning over PC5";

[0279] b) RSL PL bit to "Support of Ranging and Sidelink Positioning by Positioning UEs";

[0280] c) RSL PS bit to "Support of Ranging and Sidelink Positioning by SL Positioning Server UEs"; or

[0281] d) any combination of a), b) and c) in the 5GMM Capabilities IE of the Registration Request message;

[0282] And also

[0283] a) If the UE supports ranging and sidelink positioning using V2X capable UEs, the UE shall set the RSLPVU bit to "Ranging and Sidelink Positioning with V2X capable UEs" in the 5GMM capability IE of the Registration Request message; and

[0284] b) If the UE supports ranging and sidelink positioning using 5G ProSe capable UEs, the UE shall set the RSLPPU bit to "Ranging and Sidelink Positioning with 5G ProSe capable UEs" in the 5GMM capability IE of the Registration Request message.

[0285] In some embodiments, by defining a new IE in InputData, to allow the AMF to provide the target UE supported ranging and sidelink positioning capabilities:

[0286] In some embodiments, the UE supported ranging and sidelink positioning capabilities are represented by enumerating SlPositioningCapability.

[0287] SlPositioningCapability

[0288] In SL-MO-LR procedure, 5GC-MO-LR procedure using SL positioning or 5GC-MT-LR procedure using SL positioning, when the provided candidate positioning UE and UE1 is the target UE, the LMF considers the ProSe or V2X communication capabilities supported by the target UE and the positioning UE.

[0289] When UE1 is not the target UE and the candidate positioning UE is provided, the LMF does not consider the ProSe or V2X communication capabilities supported by the target UE and the positioning UE, because the LMF cannot obtain the target UE's capability of ProSe or V2 communication.

[0290] Based on the above wireless communication system, various embodiments of the communication method proposed by the present disclosure are described in detail below.

[0291] It should be understood that each network function in the embodiments of the present disclosure is taken as an example of the network function in the 5G network architecture, but the specific name of each network function is not limited in the embodiments of the present disclosure.

[0292] It should also be understood that each terminal in the embodiments of the present disclosure can be named based on the corresponding function, but the specific name of each terminal is not limited in the embodiments of the present disclosure.

[0293] In the following embodiments, the network function can also be described as a network element, a network node, a network function entity, and the like. The logical function that can be flexibly deployed can also be a specific logical function entity, but is not limited thereto.

[0294] FIG. 2 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2, the communication method is used in the communication system 100, and the method comprises:

[0295] S21, the second terminal determines the first capability of the first terminal.

[0296] In some embodiments, the manner in which the second terminal determines the first capability of the first terminal can include at least one of the following:

[0297] The first manner: receiving the first information sent by the first terminal. Optionally, the first information includes the first capability of the first terminal.

[0298] The second manner: determining the first capability of the first terminal according to local records or configuration information.

[0299] The third manner: determining the first capability of the first terminal according to V2X communication or 5G proximity service communication between the first terminal and the second terminal.

[0300] In some embodiments, the first manner described above can include that the second terminal receives the first information actively sent by the first terminal. The specific implementation scheme of this manner can be referred to the optional implementation of step S201 of FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be described here.

[0301] In some embodiments, the first manner described above can also include that the second terminal requests the first terminal to provide its first capability, and the first terminal sends the first information to the second terminal in response to the request of the second terminal. The specific implementation scheme of this manner can be referred to the optional implementation of steps S210-1, S210-2 and S211 of FIG. 2b and other associated parts in the embodiments involved in FIG. 2a, which will not be described here.

[0302] In some embodiments, the second manner described above can be that the second terminal has obtained the first capability of the first terminal in other interaction processes with the first terminal before the triggering of the first request of the current first service, and records it locally.

[0303] In some embodiments, the third manner can be that the second terminal obtains the first capability of the first terminal according to a communication manner through which the first terminal interacts with the second terminal. For example, the first terminal sends a parameter related to the first request to the second terminal or in a process in which the first terminal discovers the second terminal, they interact through PC5 V2X communication. Then, the second terminal can determine that the first terminal at least supports PC5 V2X communication or the capability of performing the first service through PC5 V2X communication. When the first terminal does not send the first capability of the first terminal to the second terminal, the second terminal can determine that the first terminal supports PC5 V2X communication or the capability of performing the first service through PC5 V2X communication.

[0304] It should be noted that there are various ways for the second terminal to obtain the first capability of the first terminal. The second terminal can receive first information including the first capability of the first terminal sent by the first terminal, obtain the first capability of the first terminal through configuration, obtain the first capability of the first terminal recorded in an interaction process of the second terminal with the first terminal in other processes, or obtain the first capability of the first terminal through deduction in an interaction of receiving a request of the first service related to the first terminal, but is not limited thereto.

[0305] S22, the second terminal sends second information to the first network function.

[0306] The optional implementation manner of step S22 can be referred to the optional implementation manner of step S202 of FIG. 2a, the optional implementation manner of step S212 of FIG. 2b, and other associated parts in the embodiments related to FIG. 2a and FIG. 2b, which will not be described here.

[0307] S23, the first network function sends third information to the second network function.

[0308] The optional implementation manner of step S23 can be referred to the optional implementation manner of step S203 of FIG. 2a, and other associated parts in the embodiments related to FIG. 2a, which will not be described here.

[0309] S24, the second network function determines at least one third terminal based on the third information.

[0310] The optional implementation manner of step S24 can be referred to the optional implementation manner of step S204 of FIG. 2a, and other associated parts in the embodiments related to FIG. 2a, which will not be described here.

[0311] FIG. 2a is an interaction schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2a, the communication method is used in the communication system 100, and the method comprises:

[0312] S201, the first terminal sends first information to the second terminal.

[0313] In some embodiments, the first information comprises a first capability of the first terminal.

[0314] In some embodiments, the first information is used to indicate the first capability of the first terminal.

[0315] In some embodiments, the first terminal can send the first information comprising / indicating the first capability of the first terminal to the second terminal.

[0316] In some embodiments, the second terminal can receive the first information comprising / indicating the first capability of the first terminal sent by the first terminal.

[0317] In some embodiments, the first terminal can be a target terminal in a positioning procedure, but the terminal name is not limited thereto.

[0318] In some embodiments, the second terminal is a terminal different from the first terminal, and optionally, the second terminal is not a target terminal in a positioning procedure. Optionally, the second terminal can be a terminal that accesses a core network instead of the first terminal in the positioning procedure, for example, can be a positioning terminal.

[0319] In some embodiments, the target terminal in the positioning procedure can send the first information to the second terminal in the positioning procedure. Optionally, the first information comprises / indicates the first capability of the target terminal.

[0320] In some embodiments, the second terminal is used to process a first service associated with the first terminal.

[0321] In some embodiments, the first service associated with the first terminal comprises ranging and / or sidelink positioning service.

[0322] In some embodiments, the first capability of the first terminal comprises at least one of:

[0323] capability of ranging and sidelink positioning;

[0324] capability of V2X communication;

[0325] capability of 5G proximity service;

[0326] capability of performing the first service through V2X communication over PC5;

[0327] capability of performing the first service through 5G proximity service.

[0328] In some embodiments, the first information can comprise a first request for triggering the first service.

[0329] In some embodiments, the first request can be a terminal-originated request. Optionally, the terminal-originated request can include a request triggered by the terminal, or the terminal-originated request can refer to a request initiated from the terminal to other network entities.

[0330] In some embodiments, when the first service is ranging and / or sidelink positioning service, the terminal-originated request can be a sidelink-terminal-terminated-positioning request SL-MO-LR.

[0331] In some embodiments, the first capability of the first terminal is included in the first request or not included in the first request.

[0332] In some embodiments, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

[0333] In some embodiments, the first request for triggering the first service can include the first capability of the first terminal. Optionally, the first capability of the first terminal can be included as part of the first request.

[0334] In some embodiments, the first information can include the first capability of the first terminal and the first request. Optionally, the first capability of the first terminal can be included in the first information as independent information not included in the first request.

[0335] In some embodiments, the first information can further include parameters of the first request of the first service.

[0336] In some embodiments, the first information can include the first capability of the first terminal and parameters of the first request. Optionally, the first information can not include the first request, but include the parameters of the first request, in addition to the first capability of the first terminal.

[0337] In some embodiments, if the first request of the first service is SL-MO-LR, the parameters of the first request can indicate other UE2 to UE n (using application layer ID), indicate any required assistance data, indicate whether positioning calculation assistance is required, and indicate whether the positioning result should be transmitted to the LCS client or AF. The parameters can include the identity of the LCS client or AF, and can include the address of the LCS client or AF that should be accessed by the GMLC (through NEF). In addition, the service type of the MO-LR service of the LCS client requested by the UE can be included. For the location calculation assistance from the LMF, the preferred type of the positioning result of the ranging and sidelink positioning (e.g., absolute position, relative position, or distance and direction between UEs, speed and relative speed) and the required QoS can also be included.

[0338] In some embodiments, the method can further include:

[0339] S202. The second terminal sends second information to the first network function.

[0340] In some embodiments, the second terminal can send the second information to the first network function after receiving the first information sent by the first terminal.

[0341] In some embodiments, the first network function is a network function serving the second terminal.

[0342] In some embodiments, the first network function is, for example, an Access and Mobility Management Function (AMF).

[0343] In some embodiments, the first network function is used for functions such as terminal identity authentication, authorization, registration, mobility management, and connection management, and the name is not limited thereto.

[0344] In some embodiments, the second information includes a first capability of the first terminal.

[0345] In some embodiments, the second information is determined based on the first information.

[0346] In some embodiments, the second information includes a third request for triggering the first service.

[0347] In some embodiments, the third request for the first service can be a terminal-originated request for the first service associated with the first terminal. Optionally, the first service associated with the first terminal can be a ranging and / or sidelink positioning service. Optionally, the terminal-originated request for the first service can be a Sidelink-Terminal-Terminated-Positioning Request SL-MO-LR.

[0348] In some embodiments, before step S202, the method can further include:

[0349] Determining the second information based on the first information.

[0350] In some embodiments, determining the second information based on the first information can include at least one of the following:

[0351] Based on the first capability of the first terminal included in the first information, determining the first capability of the first terminal included in the second information;

[0352] Based on the first request for the first service included in the first information, determining the third request for the first service included in the second information;

[0353] determining the third request of the first service included in the second information as the first request of the first service included in the first information;

[0354] determining the third request of the first service included in the second information based on the first capability of the first terminal and the parameter of the first request of the first service included in the first information.

[0355] In some embodiments, the second terminal can transparently transmit the received first information to the first network function. In this embodiment, the specific content about the first information can refer to the related description of the first information in the foregoing description, and will not be described herein again for the sake of brevity. Optionally, the second terminal can determine the first request of the first service included in the first information as the third request of the first service included in the second information. Optionally, if the first capability of the first terminal is included in the first request, the determined third request includes the first capability of the first terminal. Optionally, if the first capability of the first terminal is not included in the first request, the determined third request does not include the first capability of the first terminal. Optionally, the second terminal can determine the first capability included in the first information as the first capability included in the second information.

[0356] In some embodiments, the second terminal does not transparently transmit the received first information, i.e., the second terminal can construct or reconstruct the received first information as the second information and send the second information to the first network function. Optionally, the second terminal can construct or reconstruct the second information based on the first capability of the first terminal included in the first information, so that the second information includes the first capability of the first terminal. Optionally, the second terminal can construct or reconstruct the third request of the first service included in the second information based on the first request of the first service included in the first information. Optionally, the first capability of the first terminal can be included in the third request of the first service. Optionally, the first capability of the first terminal can not be included in the third request of the first service.

[0357] Example 1: If the first capability of the first terminal is included in the first request, the constructed or reconstructed third request can include the first capability of the first terminal, or can not include the first capability of the first terminal.

[0358] Example 2: If the first capability of the first terminal is not included in the first request, the constructed or reconstructed third request can include the first capability of the first terminal, or can not include the first capability of the first terminal.

[0359] It should be understood that the above examples are only for illustrating possible implementation solutions of the embodiments of the present disclosure, and do not constitute any limitation on the embodiments of the present disclosure.

[0360] In some embodiments, the second terminal can further determine the third request of the first service included in the second information based on the first capability of the first terminal and the parameter of the first request of the first service included in the first information. Optionally, the first capability of the first terminal can be included in the third request or not included in the third request.

[0361] In some embodiments, the second information can include the first capability of the first terminal and the third request. Optionally, the first capability of the first terminal can be included in the second information as independent information not included in the first request. Optionally, the first capability of the first terminal can be included as part of the third request.

[0362] In some embodiments, the above method can further include:

[0363] S203, the first network function sends the third information to the second network function.

[0364] In some embodiments, after the first network function receives the second information sent by the second terminal, the first network function can send the third information to the second network function.

[0365] In some embodiments, the second network function is, for example, a location management function (LMF).

[0366] In some embodiments, the second network function is a core network function for providing positioning in 5GC, which completes the calculation and feedback of location information in the 5G network, and provides functions such as positioning process management, terminal capability acquisition, auxiliary data provision, and terminal position estimation. The name is not limited to this.

[0367] In some embodiments, the second information is determined based on the first information received by the second terminal from the first terminal. Optionally, the first information includes the first capability of the first terminal. In this embodiment, the specific content of the first information can be referred to the related description of the first information in the foregoing, and will not be described again for the sake of brevity.

[0368] In some embodiments, the second information includes the third request for triggering the first service.

[0369] In some embodiments, the third request of the first service can be a terminal-originated request of the first service associated with the first terminal.

[0370] In some embodiments, the second information is determined by at least one of the following:

[0371] The first capability of the first terminal included in the second information is determined based on the first capability of the first terminal included in the first information;

[0372] The third request of the first service included in the second information is determined based on the first request of the first service included in the first information;

[0373] The third request of the first service included in the second information is determined as the first request of the first service included in the first information;

[0374] The third request of the first service included in the second information is determined based on the first capability of the first terminal and the parameter of the first request of the first service included in the first information.

[0375] It should be noted that the second information is determined by the second terminal based on the received first information, and the specific implementation scheme can be referred to the related description in the above step 202, which will not be repeated here.

[0376] In some embodiments, the above method can further include:

[0377] S204, the second network function determines at least one third terminal based on the third information.

[0378] In some embodiments, the second network function can obtain the third information from the first network function.

[0379] In some embodiments, the second network function obtaining the third information means receiving the third information.

[0380] In some embodiments, the second network function can receive the third information sent by the first network function.

[0381] In some embodiments, the first network function is, for example, an access and mobility management function (AMF).

[0382] In some embodiments, the first network function is used for "responsible for terminal identity authentication, authentication, registration, mobility management and connection management and other functions", and the name is not limited thereto.

[0383] In some embodiments, the second network function is, for example, a location management function (LMF).

[0384] In some embodiments, the second network function is used for "a core network function in 5GC that provides positioning, completes the calculation and feedback of location information in 5G network, and provides positioning process management, terminal capability acquisition, auxiliary data provision, terminal position estimation and other functions", and the name is not limited thereto.

[0385] In some embodiments, the LMF can receive an LMF Location Determine Location Request (Nlmf_Location_DetermineLocation Request) message sent by the AMF, which includes third-party information.

[0386] In some embodiments, the third information may include the first capability of the first terminal.

[0387] In some embodiments, the first capability of each of the at least one third terminal matches the first capability of the first terminal, and the at least one third terminal is used for a first service associated with the first terminal.

[0388] In some embodiments, the second network function may also acquire the first capability of at least one candidate terminal.

[0389] In some embodiments, the candidate terminal may include the located UE and / or the reference terminal (e.g., SL Reference UE) during the positioning process, but the terminal name is not limited thereto.

[0390] In some embodiments, the second network function can acquire the first capability of at least one locally pre-configured candidate terminal.

[0391] In some embodiments, the second network function may acquire the relevant first capability from each of the at least one candidate terminal.

[0392] In some embodiments, the second network function may request each of the at least one candidate terminal to provide its respective first capability. Optionally, the second network function may send either a Capabilities Request for UEs to each candidate terminal or a newly added request to request the UE to provide the first capability.

[0393] In some embodiments, the first network function may receive a first capability sent by each of at least one candidate terminal. Optionally, the first network function may receive either a Capabilities Response for UEs to n or a newly added response from each candidate terminal requesting the UE to provide the first capability.

[0394] In some embodiments, the second network function can also acquire the first capability of at least one candidate terminal from other devices.

[0395] In some embodiments, the second network function determines at least one third terminal based on third information and the first capability of at least one candidate terminal.

[0396] In some embodiments, the third terminal is determined from the at least one candidate terminal based on the third information and the first capability of the at least one candidate terminal, and the capability of the third terminal matches the first capability of the first terminal.

[0397] Optionally, the capability of the candidate terminal matching the first capability of the second terminal means that the capability of the candidate terminal is consistent with the first capability of the first terminal, or the candidate terminal has the same capability as the first capability of the first terminal. It should be noted that "has" herein can be understood as "includes". That is, the candidate terminal includes the same capability as the first capability of the first terminal, and can further include other capabilities; or the candidate terminal has the same capability as the first capability of the first terminal, and other capabilities.

[0398] For example, if the first capability of the first terminal is the capability of supporting the first service through PC5 V2X communication, the terminal having the capability of supporting the first service through PC5 V2X communication is selected from the at least one candidate terminal, or the terminal having the capability of supporting the first service through PC5 V2X communication and through 5G proximity service is selected, to obtain the third terminal.

[0399] In some embodiments, the third terminal is used for ranging or sidelink positioning service.

[0400] In some embodiments, the second network function can provide the determined candidate positioning terminal to the first terminal, so that the first terminal selects a positioning terminal therefrom for positioning.

[0401] In some embodiments, the second network function can further forward information including the at least one third terminal to the first terminal through the second terminal. Optionally, the information can include an identifier of the at least one third terminal, but is not limited thereto.

[0402] In some embodiments, the third terminal can be a candidate positioning terminal.

[0403] In some embodiments, the second network function can further forward a list including the first candidate positioning terminal to the first terminal through the second terminal, and the list includes the at least one candidate positioning terminal.

[0404] In some embodiments, the second network function can further forward first indication information to the first terminal through the second terminal, for indicating that the first capability of each of the at least one first terminal matches the first capability of the first terminal.

[0405] In some embodiments, 1 bit can be used to indicate the matching result as positive or negative, and other manners can also be used, and the embodiments are not limited thereto.

[0406] Optionally, if the bit value "0" is used to indicate the matching result is negative, the bit value "1" is used to indicate the matching result is positive. For example, if the matching result is shown in Table 1 below, the second network function selects UE-a2 and UE-a3 as the third terminal.

[0407]

[0408] Table 1

[0409] Optionally, if the bit value "0" is used to indicate the matching result is positive, the bit value "1" is used to indicate the matching result is negative. For example, if the matching result is shown in Table 1 above, the first network function selects UE-a1 and UE-a n as the third terminal.

[0410] In some embodiments, if the second network function determines that the positioning terminal selection is performed by the first terminal, the second network function can also forward the second indication information to the first terminal through the second terminal, to instruct the first terminal to perform the positioning terminal selection.

[0411] In some embodiments, the names of the information, etc. are not limited to the names described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "data", etc. can be replaced with each other.

[0412] In some embodiments, the terms of "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive", etc. can be replaced with each other.

[0413] In some embodiments, the terms of "certain", "preset", "pre-set", "set", "indicated", "certain", "arbitrary", "first", etc. can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A specified in advance in a protocol, etc., or can be interpreted as A obtained by setting, configuring, or indicating, etc., or can be interpreted as certain A, certain A, arbitrary A, or first A, etc., but is not limited thereto.

[0414] In some embodiments, the terms "in the case of", "at the time of", "when", "if", "provided that" and the like can be replaced by each other.

[0415] The method related to the embodiments of the present disclosure can comprise at least one of steps S201-S204. For example, step S201 can be implemented as an independent embodiment, steps S201 and S202 can be implemented as an independent embodiment, steps S201, S202 and S203 can be implemented as an independent embodiment, steps S201, S202, S203 and S204 can be implemented as an independent embodiment, but are not limited thereto.

[0416] In some embodiments, step S201 is optional, and one or more of the steps can be omitted or replaced in different embodiments. For example, the second terminal derives the first capability information of the first terminal in another process (recorded in the previous interaction between the first terminal and the second terminal) or by configuration or through the interaction of receiving the first service request.

[0417] In some embodiments, step S202 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0418] In some embodiments, step S203 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0419] In some embodiments, step S204 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0420] FIG. 2b is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2b, the communication method is used in the communication system 100, and the method comprises:

[0421] S210-1, the first terminal sends fourth information to the second terminal.

[0422] In some embodiments, the fourth information can comprise a first request of a first service associated with the first terminal. Optionally, the first request can be a request triggering the first service.

[0423] In some embodiments, the first terminal sends the first request of the first service associated with the first terminal to the second terminal.

[0424] In some embodiments, the fourth information can comprise a parameter related to the first request of the first service associated with the first terminal. Optionally, the parameter is used by the second terminal to determine the first request.

[0425] In some embodiments, the first terminal sends, to the second terminal, a parameter related to a first request of the first terminal associated first service.

[0426] In some embodiments, the first terminal associated first service comprises ranging and / or sidelink positioning service.

[0427] S210-2, the second terminal sends, to the first terminal, a second request.

[0428] Optionally, the second request is used to request the first terminal to provide, to the second terminal, a first capability of the first terminal.

[0429] It should be noted that the execution of the above step S210-1 and step S210-2 has no sequence, and step S210-2 can also be executed before step S210-1, but is not limited thereto.

[0430] S211, the first terminal sends, to the second terminal, first information in response to the second request.

[0431] Optionally, the first information comprises the capability of the first terminal.

[0432] In some embodiments, the first capability of the first terminal comprises at least one of:

[0433] a capability of ranging and sidelink positioning;

[0434] a capability of V2X communication;

[0435] a capability of 5G proximity service;

[0436] a capability of performing the first service through V2X communication over PC5;

[0437] a capability of performing the first service through 5G proximity service.

[0438] S212, the second terminal sends, to the first network function, the second information.

[0439] In some embodiments, the second information comprises the first capability of the first terminal.

[0440] In some embodiments, the second information is determined based on the first information and / or the fourth information.

[0441] In some embodiments, the second information comprises a third request for triggering the first service.

[0442] In some embodiments, the third request of the first service can be a terminal-originated request of the first service associated with the first terminal. Optionally, the first service associated with the first terminal can be a ranging and / or sidelink positioning service. Optionally, the terminal-originated request of the first service can be a sidelink-terminal-terminated-positioning request SL-MO-LR.

[0443] In some embodiments, the first terminal can determine the first capability of the first terminal included in the first information as the first capability of the first terminal included in the second information.

[0444] In some embodiments, the first capability of the first terminal is included in the third request, or is not included in the third request.

[0445] In some embodiments, the third request in the second information includes the first capability, or the second information includes the first capability and the third request does not include the first capability.

[0446] In some embodiments, before step S212, the above method can further include:

[0447] determining the second information based on the first information and / or the fourth information.

[0448] In some embodiments, determining the second information based on the first information and / or the fourth information can include at least one of:

[0449] determining the first capability of the first terminal included in the second information based on the first capability of the first terminal included in the first information;

[0450] determining the third request of the first service included in the second information based on the first request of the first service included in the fourth information;

[0451] determining that the third request of the first service included in the second information is the first request of the first service included in the fourth information;

[0452] determining the third request of the first service included in the second information based on the first capability of the first terminal included in the first information and the parameter of the first request included in the fourth information.

[0453] In some embodiments, the second terminal can transparently transmit the received first information and / or the fourth information to the first network function. In this embodiment, the specific content about the first information can refer to the relevant description of the first information in the foregoing description, and will not be described herein again for the sake of brevity. Optionally, the second terminal can determine the first request of the first service included in the fourth information as the third request of the first service included in the second information. Optionally, if the first capability of the first terminal is included in the first request, the third request determined includes the first capability of the first terminal. Optionally, if the first capability of the first terminal is not included in the first request, the third request determined does not include the first capability of the first terminal. Optionally, the second terminal can determine the first capability included in the first information as the first capability included in the second information.

[0454] In some embodiments, the second terminal does not transparently transmit the received first information and / or the fourth information, i.e., the second terminal can construct or reconstruct the second information based on the received first information and / or the fourth information and send the second information to the first network function. Optionally, the second terminal can construct or reconstruct the second information based on the first capability of the first terminal included in the first information, so that the second information includes the first capability of the first terminal. Optionally, the second terminal can construct or reconstruct the third request of the first service included in the second information based on the first capability included in the first information and the first request of the first service included in the fourth information. Optionally, the first capability of the first terminal can be included in the third request of the first service. Optionally, the first capability of the first terminal can not be included in the third request of the first service.

[0455] It should be understood that the above examples are only for illustrating possible implementation of the embodiments of the present disclosure, and do not constitute any limitation on the embodiments of the present disclosure.

[0456] In some embodiments, the second terminal can further determine the third request of the first service included in the second information based on the first capability of the first terminal included in the first information and the parameter of the first request of the first service included in the fourth information. Optionally, the first capability of the first terminal can be included in the third request, or not included in the third request.

[0457] In some embodiments, the second information can include the first capability of the first terminal and the third request. Optionally, the first capability of the first terminal can be included in the second information as independent information not included in the first request. Optionally, the first capability of the first terminal can be included as part of the third request.

[0458] In some embodiments, the above method can further include:

[0459] S213, the first network function sends the third information to the second network function.

[0460] The optional implementation of step S213 can refer to the optional implementation of step S203 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0461] S214, determining, by the second network function, at least one third terminal based on the third information.

[0462] The optional implementation of step S214 can refer to the optional implementation of step S204 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0463] The method involved in the embodiments of the present disclosure can include at least one of steps S210-1 to S214. For example, step S211 can be implemented as an independent embodiment, steps S210-1, S210-2 and S211 can be implemented as independent embodiments, steps S211 and S212 can be implemented as independent embodiments, steps S211, S212 and S213 can be implemented as independent embodiments, steps S210-1, S210-2, S211 and S212 can be implemented as independent embodiments, steps S210-1, S210-2, S211, S212 and S213 can be implemented as independent embodiments, steps S211, S212, S213 and S214 can be implemented as independent embodiments, but are not limited thereto.

[0464] In some embodiments, step S210-1 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0465] In some embodiments, step S210-2 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0466] In some embodiments, step S212 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0467] In some embodiments, step S213 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0468] In some embodiments, step S214 is optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0469] FIG. 3 is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 3, the communication method can be performed by a first terminal, and the method includes:

[0470] S301. Send first information to the second terminal.

[0471] The optional implementation of step S301 can refer to the optional implementation of step S201 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0472] In some embodiments, the first terminal sends the first information to the second terminal.

[0473] In some embodiments, the first terminal can be a target terminal in a positioning process, and the second terminal can be a non-target terminal in the positioning process.

[0474] In some embodiments, the first information includes a first capability of the first terminal, and the second terminal is configured to process a first service associated with the first terminal.

[0475] In some embodiments, the first information includes a first request for triggering the first service.

[0476] In some embodiments, the first capability of the first terminal is included in the first request or is not included in the first request.

[0477] In some embodiments, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

[0478] In some embodiments, the first request for the first service can be a terminal-originated request for the first service.

[0479] In some embodiments, before step S301, the method further includes:

[0480] S300-1. Send fourth information to the second terminal.

[0481] The optional implementation of step S300-1 can refer to the optional implementation of step S201-1 in FIG. 2b and other associated parts in the embodiments involved in FIG. 2b, which will not be repeated here.

[0482] In some embodiments, the fourth information can include a first request for a first service associated with the first terminal.

[0483] In some embodiments, the fourth information can include a parameter of the first request for the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0484] S300-2. Receive a second request sent by the second terminal.

[0485] The optional implementation of step S300-2 can be found in the optional implementation of step S201-2 in Figure 2b, and other related parts in the embodiment involved in Figure 2b, which will not be repeated here.

[0486] In some embodiments, the second request is used to request the first capability of the first terminal.

[0487] In this embodiment, the optional implementation of step S301 can be found in the optional implementation of step S211 in Figure 2b, and other related parts in the embodiment involved in Figure 2b, which will not be repeated here.

[0488] In some embodiments, the first information further includes parameters of a first request for the first service. Optionally, the parameters are used by the second terminal to determine the first request.

[0489] In some embodiments, the first capability of the first terminal includes at least one of the following:

[0490] The ability to measure distances and locate side chains;

[0491] V2X communication capabilities;

[0492] 5G proximity service capabilities;

[0493] The ability to perform the first service via PC5's V2X communication;

[0494] The ability to perform the first service through 5G proximity services.

[0495] In some embodiments, the first service includes: ranging and / or sidechain positioning services.

[0496] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the method involved in this embodiment is executed by a second terminal, and the method includes:

[0497] S401, Determine the first information.

[0498] In some embodiments, the second terminal may determine the first capability of the first terminal based on local records or configuration information.

[0499] In some embodiments, the second terminal may determine the first capability of the first terminal based on V2X communication or 5G proximity service communication between the first terminal and the second terminal.

[0500] In some embodiments, the second terminal determining the first information may refer to obtaining the first information.

[0501] In some embodiments, the second terminal obtaining the first information may refer to receiving the first information.

[0502] In some embodiments, the second terminal receives the first information sent by the first terminal.

[0503] The optional implementation of step S401 can refer to the optional implementation of step S201 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0504] In some embodiments, the first information includes the first capability of the first terminal.

[0505] In some embodiments, the second terminal is configured to process the first service associated with the first terminal.

[0506] In some embodiments, the first information includes the first request for triggering the first service.

[0507] In some embodiments, the first capability of the first terminal is included in the first request or not included in the first request.

[0508] In some embodiments, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

[0509] In some embodiments, the first information further includes a parameter of the first request of the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0510] S402, sending second information to the first network function.

[0511] The optional implementation of step S402 can refer to the optional implementation of step S202 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0512] In some embodiments, the second information includes the first capability of the first terminal.

[0513] In some embodiments, the second information is determined based on the first information.

[0514] In some embodiments, the second information includes a third request for triggering the first service.

[0515] In some embodiments, the third request for the first service can be a terminal-originated request for the first service associated with the first terminal.

[0516] In some embodiments, before step S402, the above method can further include:

[0517] determining the second information based on the first information.

[0518] In some embodiments, determining the second information based on the first information can comprise at least one of:

[0519] determining a first capability of a first terminal comprised in the second information based on a first capability of a first terminal comprised in the first information;

[0520] determining a third request of the first service comprised in the second information based on a first request of the first service comprised in the first information;

[0521] determining the third request of the first service comprised in the second information as the first request of the first service comprised in the first information;

[0522] determining the third request of the first service comprised in the second information based on a first capability of a first terminal comprised in the first information and a parameter of the first request of the first service.

[0523] In some embodiments, before step 401, the method can further comprise:

[0524] receiving a fourth information sent by the first terminal;

[0525] sending a second request to the first terminal.

[0526] In some embodiments, the second request is used to request the first capability of the first terminal.

[0527] In some embodiments, the fourth information can comprise a first request of a first service associated with the first terminal.

[0528] In some embodiments, the fourth information can comprise a parameter of the first request of the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0529] In some embodiments, after receiving the service request of the first terminal, the second terminal can request the first terminal to provide its first capability. The above optional implementation can refer to the optional implementation of steps S201-1 and S201-2 in FIG. 2b and other associated parts in the embodiments involved in FIG. 2b, which will not be repeated here.

[0530] In some embodiments, the second information is determined based on the first information and / or the fourth information.

[0531] In some embodiments, before step S402, the method can further comprise:

[0532] determining the second information based on the first information and / or the fourth information.

[0533] In some embodiments, determining the second information based on the first information and / or the fourth information can include at least one of the following:

[0534] determining, based on a first capability of a first terminal included in the first information, a first capability of the first terminal included in the second information;

[0535] determining, based on a first request of the first service included in the fourth information, a third request of the first service included in the second information;

[0536] determining that the third request of the first service included in the second information is the first request of the first service included in the fourth information;

[0537] determining, based on a first capability of a first terminal included in the first information and a parameter of the first request included in the fourth information, a third request of the first service included in the second information.

[0538] The optional implementation manners described above can refer to the optional implementation manners of step S212 in FIG. 2b and other associated parts in the embodiments related to FIG. 2b, which will not be described here.

[0539] In some embodiments, the first capability of the first terminal includes at least one of the following:

[0540] a capability of ranging and sidelink positioning;

[0541] a capability of V2X communication;

[0542] a capability of 5G proximity service;

[0543] a capability of performing the first service through V2X communication over PC5;

[0544] a capability of performing the first service through 5G proximity service.

[0545] In some embodiments, the first service includes ranging and / or sidelink positioning service.

[0546] In some embodiments, the first network function is a network function for access and mobility management serving the second terminal.

[0547] FIG. 5 is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 5, the method according to the embodiments of the present disclosure is performed by a first network function, and the method includes:

[0548] S501, obtaining second information.

[0549] In some embodiments, the first network function obtaining the second information can refer to receiving the second information.

[0550] In some embodiments, the first network function receives second information sent by a second terminal.

[0551] The optional implementation of step S501 can refer to the optional implementation of step S202 in FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0552] In some embodiments, the first network function is an AMF serving the second terminal.

[0553] In some embodiments, the second information includes a first capability of the first terminal.

[0554] In some embodiments, the second information is determined based on first information received by the second terminal from the first terminal.

[0555] In some embodiments, the first information includes a first capability of the first terminal.

[0556] In some embodiments, the second terminal is configured to process a first service associated with the first terminal.

[0557] In some embodiments, the first information includes a first request for triggering the first service.

[0558] In some embodiments, the first capability of the first terminal is included in the first request or not included in the first request.

[0559] In some embodiments, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

[0560] In some embodiments, the first information further includes a parameter of the first request of the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0561] In some embodiments, the second information includes a third request for triggering the first service.

[0562] In some embodiments, the third request of the first service can be a terminal-originated request of the first service associated with the first terminal.

[0563] In some embodiments, the second information is determined based on the first information, including at least one of:

[0564] The first capability of the first terminal included in the second information is determined based on the first capability of the first terminal included in the first information;

[0565] The third request of the first service included in the second information is determined based on the first request of the first service included in the first information;

[0566] The third request of the first service included in the second information is determined as the first request of the first service included in the first information;

[0567] The third request of the first service included in the second information is determined based on the first capability of the first terminal and the parameter of the first request of the first service included in the first information.

[0568] In some embodiments, the first capability of the first terminal is included in the third request, or is not included in the third request.

[0569] In some embodiments, the third request in the second information includes the first capability, or the second information includes the first capability and the third request does not include the first capability.

[0570] In some embodiments, the second information is determined based on the first information and / or the fourth information received by the second terminal from the first terminal.

[0571] Optionally, the first information includes the first capability of the first terminal, and the second information includes the third request for triggering the first service.

[0572] Optionally, the fourth information includes the first request for triggering the first service, or a parameter of the first request, and the parameter is used by the second terminal to determine the first request.

[0573] In some embodiments, the second information is determined based on the first information and / or the fourth information, and includes at least one of the following:

[0574] The first capability of the first terminal included in the second information is determined based on the first capability of the first terminal included in the first information;

[0575] The third request of the first service included in the second information is determined based on the first request of the first service included in the fourth information;

[0576] The third request of the first service included in the second information is determined as the first request of the first service included in the fourth information;

[0577] The third request of the first service included in the second information is determined based on the first capability of the first terminal included in the first information and the parameter of the first request included in the fourth information.

[0578] S502, send third information to the second network function.

[0579] In some embodiments, the third information comprises a first capability of the first terminal.

[0580] In some embodiments, the second network function is, for example, an LMF serving the second terminal.

[0581] Optional implementation of step S502 can refer to the optional implementation of step S203 of FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0582] In some embodiments, the first capability of the first terminal comprises at least one of:

[0583] a capability of ranging and sidelink positioning;

[0584] a capability of V2X communication;

[0585] a capability of 5G proximity service;

[0586] a capability of performing the first service through V2X communication over PC5;

[0587] a capability of performing the first service through 5G proximity service.

[0588] In some embodiments, the first service comprises ranging and / or sidelink positioning service.

[0589] FIG. 6 is a flow diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 6, the method involved in the embodiments of the present disclosure is performed by a second network function, and the method comprises:

[0590] S601, obtain third information.

[0591] In some embodiments, the second network function obtaining the third information can refer to receiving the third information.

[0592] In some embodiments, the second network function receives the third information sent by the first network function.

[0593] In some embodiments, the first network function is, for example, an AMF serving the second terminal.

[0594] In some embodiments, the second network function is, for example, an LMF serving the second terminal.

[0595] Optional implementation of step S601 can refer to the optional implementation of step S203 of FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0596] In some embodiments, the third information comprises a first capability of the first terminal.

[0597] S602、based on the third information, determining at least one third terminal.

[0598] In some embodiments, the first capability of each of the at least one third terminal matches the first capability of the first terminal.

[0599] In some embodiments, the at least one third terminal is used for a first service associated with the first terminal.

[0600] The optional implementation of step S602 can refer to the optional implementation of step S204 of FIG. 2a and other associated parts in the embodiments involved in FIG. 2a, which will not be repeated here.

[0601] In some embodiments, the first capability includes at least one of the following:

[0602] The capability of ranging and sidelink positioning;

[0603] The capability of V2X communication;

[0604] The capability of 5G proximity service;

[0605] The capability of the first service through V2X communication over PC5;

[0606] The capability of the first service through 5G proximity service.

[0607] In some embodiments, the first service includes ranging and / or sidelink positioning service.

[0608] The present disclosure also provides an optional embodiment, which provides a communication method, when UE1 is not the target UE, by considering the capability of the UE involved in the ranging and / or sidelink positioning process to communicate between UEs, to improve the determination method of candidate UEs in the ranging and / or sidelink positioning process.

[0609] In some embodiments, UE1 / AMF / LMF is instructed that the target UE supports the capability of ranging and sidelink positioning through V2X communication over PC5 or through 5G ProSe.

[0610] In some embodiments, the candidate positioning UE sent by the LMF takes into account the above-mentioned capabilities supported by the target UE and the positioning UE;

[0611] In some embodiments, when the LMF decides the SL positioning server UE, the capability of the UE to support ranging and sidelink positioning through V2X communication over PC5 or 5G ProSe is considered.

[0612] In some embodiments, as shown in FIG. 7, a communication method can include the following steps:

[0613] 701. Procedures and signaling to provide ranging and / or sidelink positioning service authorization and policies and / or parameters to UEs 1 to n.

[0614] 702. Based on a trigger of a service request (e.g., received from an application layer), the service request including UEs 1 to n, perform a discovery procedure of the UEs to range and / or sidelink position.

[0615] In some embodiments, if UE 1 is the target UE, UE 1 discovers UEs 2 to n.

[0616] In some embodiments, if UE 1 is the positioning UE, the target UE (i.e., one of UEs 2 to n) discovers UE 1 (and other positioning UEs in the set of UEs 2 to n).

[0617] 703. Establish secure groupcast and / or unicast links between UEs 1 to n to enable UE 1 to exchange ranging and sidelink positioning protocol (RSPP) messages with each of UEs 2 to n over the PC5-U reference point and can enable UEs 2 to n to exchange RSPPs between each other over PC5.

[0618] 704. UEs 1 and 2 to n can communicate over PC5 to authorize ranging / SL positioning.

[0619] 705. The ranging / sidelink positioning capability exchange between UEs 1 and 2 to n is performed using SLPP over the groupcast and / or unicast links established in step 703.

[0620] 706. Based on the ranging and / or sidelink positioning capabilities of UEs 1 to n, the target UE (may correspond to the first terminal in the above) determines to perform SL-MO-LR.

[0621] In some embodiments, if UE 1 is the positioning UE (i.e., when the target UE is one of UEs 2 / … / n and there is no NAS connection), the target UE initiates a SL-MO-LR service request to UE 1 (may correspond to the second terminal in the above).

[0622] In some embodiments, the target UE also sends to UE 1 its capability information to support ranging and sidelink positioning over V2X communication and / or 5G ProSe over PC5. Optionally, the capability information can be included as part of the SL-MO-LR service request or as a separate information not included as part of the SL-MO-LR service request, i.e., the capability information can be a separate information from the SL-MO-LR service request.

[0623] 707. If UE1 is in CM-IDLE state, UE1 initiates a UE triggered service request to establish a signaling connection with the serving AMF of UE1.

[0624] 708. UE1 sends a supplemental service SL-MO-LR request message to the LMF via the serving AMF in an uplink non-access stratum transport (UL NAS TRANSPORT) (may correspond to the second information above).

[0625] The SL-MO-LR request includes other UEs 2 to UEn (using application layer ID).

[0626] In some embodiments, if UE1 is a positioning UE, the target UE is one of UE2 / … / UEn and has no NAS connection, the supplemental service SL-MO-LR request includes information indicating that the target UE is one of UE2 / … / UEn, but not UE1. The capability information of the target UE supporting ranging and sidelink positioning over PC5 and / or 5G ProSe V2X communication is sent to the serving AMF of UE1.

[0627] In some embodiments, the SL-MO-LR service request received by UE1 from the target UE can be sent transparently or non-transparently. Optionally, when the SL-MO-LR service request received from the target UE is not sent transparently, UE1 constructs or reconstructs the SL-MO-LR service request sent to the serving AMF of UE1.

[0628] In some embodiments, the capability information of the target UE can be included as part of the SL-MO-LR service request or as separate information not included as part of the SL-MO-LR service request.

[0629] 709. The serving AMF selects an LMF serving UE1 (e.g., an LMF supporting ranging / sidelink positioning), and sends an LMF_LocationDetermineLocation service operation to the LMF with information from the SL-MO-LR request. The service operation includes LCS related identities.

[0630] In some embodiments, the AMF can indicate the UE capability (may correspond to the first capability above) of the target UE (may correspond to the first terminal above) supporting ranging and sidelink positioning over PC5 V2X communication and / or 5G ProSe in an LMF_LocationDetermineLocation Request (may correspond to the third information above).

[0631] In some embodiments, the first capability of the target UE described above can be implemented in the following ways:

[0632] Way 1, the LMF_Positioning_Determination_Positioning_Request described above includes information indicating the UE capability of the target UE supporting ranging and sidelink positioning through V2X communication over PC5, or ranging and sidelink positioning through 5G ProSe;

[0633] Way 2, the LMF_Positioning_Determination_Positioning_Request described above includes UE capability of whether the target UE supports ranging and sidelink positioning and / or V2X communication and / or 5G ProSe (which UE capability includes, for example, supporting 5G ProSe direct discovery and 5G ProSe direct communication).

[0634] 710-0, the LMF considers the capability of UE1 and determines the candidate positioning UE (which can correspond to at least one third terminal in the above).

[0635] In some embodiments, if the LMF decides to provide a list of candidate positioning UEs, the positioning UEs included in the list of candidate positioning UEs are determined considering the UE capability of the target UE received in step 709 supporting ranging and sidelink positioning through V2X communication over PC5 and / or 5G ProSe, and the related information available in the LMF for the candidate positioning UE(s).

[0636] In some embodiments, in the case of a mismatch between the capabilities of the target UE and the positioning UE, the LMF does not include the positioning UE in the list of candidate positioning UEs.

[0637] In some embodiments, the LMF only includes in the list of candidate positioning UEs the positioning UEs capable of communicating with the target UE. For example, if the target UE only supports ranging and sidelink positioning through V2X communication over PC5, the LMF only includes in the list of candidate positioning UEs the positioning UEs that only support ranging and sidelink positioning through V2X communication over PC5; or the positioning UEs that support both ranging and sidelink positioning over V2X communication over PC5 and 5G ProSe.

[0638] 710. The LMF can send a request to UE1 about the capabilities of UE1 to UE n using a supplemental service message with an embedded SLPP container.

[0639] If an absolute position is requested in step 708, the LMF can also provide the list of candidate positioning UEs identified by the application layer ID to UE1 through the supplemental service message. When the target UE is instructed to select the positioning UE, the LMF also includes the capability of each candidate positioning UE in the request if available.

[0640] 711. If the LMF requests UE capabilities in step 710, UE1 returns its capabilities to the LMF using SLPP message.

[0641] 712. If absolute location information of target UEs is needed in step 708, the LMF can either retrieve the location of the positioning UEs locally if available, or trigger a 5GC-MT-LR procedure to the GMLC to acquire the absolute location of the positioning UEs.

[0642] 713. If not requested in step 708, UE1 can send a request to the LMF for specific assistance data.

[0643] 714. The LMF sends the requested assistance data to UE1 using SLPP message for UE1 assistance data and using a supplementary service message with embedded SLPP messages and related application layer IDs for assistance data of UE2 to UEn. Optionally, the UE list therein can be based on the UE list after UE2 to UEn down selection.

[0644] 715. If the SL-MO-LR request in step 708 indicates that location computation assistance is needed and / or indicates to transfer ranging and / or sidelink positioning location results to the LCS client or AF, the LMF sends a request for location information of UE1 by SLPP message and a request for location information of UE2 to UEn by a supplementary service message.

[0645] 716. UE1 performs ranging / sidelink positioning procedure among UE1 to UEn, where UEs obtain sidelink location measurements, and UE2 to UEn (or their indicated down selection after UEs) transfer their sidelink location measurements to UE1.

[0646] 717. Other steps for obtaining UE locations and transferring location results.

[0647] 718. The AMF returns a supplementary service SL-MO-LR response to UE1 in a downlink non-access stratum transport (DL NAS TRANSPORT) message and includes any ranging and / or sidelink positioning results.

[0648] In a Service Based Architecture (SBA), the interaction between network functions can be implemented by invoking services, instead of sending request messages and response messages. Under a non-SBA architecture, it is implemented by sending corresponding messages. For example, in the SBA, sending a Nlmf_Location_DetermineLocation request corresponds to invoking a Nlmf_Location_DetermineLocation service, and a Nlmf_Location_DetermineLocation response corresponds to the output after the invocation of the Nlmf_Location_DetermineLocation service is executed. Of course, for other requests sent, it can also be implemented by invoking corresponding services, and the response corresponding to the request is the output after the invocation of the corresponding service is executed, and the request and / or the response can not be specifically limited.

[0649] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device including units or modules for implementing the steps performed by the terminal in any of the above methods. For another example, another device is also proposed, including units or modules for implementing the steps performed by the network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0650] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of the units or modules of the apparatus, wherein the processor is, for example, a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of the hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of the elements in the circuit; for another example, in another implementation, the above hardware circuit is realized by a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules.

[0651] All units or modules of the above apparatus can be implemented in the form of processor invoking software, or in the form of hardware circuit, or partially in the form of processor invoking software and partially in the form of hardware circuit. In the embodiments of the present disclosure, the processor is a circuit with signal processing capability, and in one implementation, the processor can be a circuit with instruction reading and running capability, for example, a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), etc.; in another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable, for example, an application-specific integrated circuit (ASIC) or a programmable logic device (PLD) such as FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement hardware circuit configuration, which can be understood as the process of the processor loading instructions to implement the functions of part or all of the units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0652] FIG. 8a is a structural schematic diagram of a first terminal according to an embodiment of the present disclosure. As shown in FIG. 8a, the first network function can include at least one of a first transceiver module 811, a first processing module 812, etc.

[0653] In some embodiments, the first transceiver module 811 is configured to send first information to a second terminal, the first information including a first capability of the first terminal, and the second terminal being configured to process a first service associated with the first terminal.

[0654] In some embodiments, the first information includes a first request for triggering the first service.

[0655] In some embodiments, the first capability of the first terminal is included in the first request, or is not included in the first request.

[0656] In some embodiments, the first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

[0657] In some embodiments, the first transceiving module 811 is further configured to receive a second request sent by the second terminal, the second request being used to request the first capability of the first terminal.

[0658] In some embodiments, the first information further comprises a parameter of the first request of the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0659] In some embodiments, the first capability of the first terminal comprises at least one of:

[0660] a capability of ranging and sidelink positioning;

[0661] a capability of V2X communication;

[0662] a capability of 5G proximity service;

[0663] a capability of performing the first service through V2X communication over PC5;

[0664] a capability of performing the first service through 5G proximity service.

[0665] In some embodiments, the first request of the first service can be a terminal-originated request of the first service.

[0666] In some embodiments, the first service comprises a ranging and / or sidelink positioning service.

[0667] Optionally, the first transceiving module 811 is further configured to perform steps related to communication performed by the first terminal in any of the above methods, for example, at least one of steps S201 shown in FIG. 2a, steps S210-1 to S211 shown in FIG. 2b, which will not be described herein again.

[0668] FIG. 8b is a structural schematic diagram of a second terminal according to an embodiment of the present disclosure. As shown in FIG. 8b, the second network function comprises at least one of a second transceiving module 821, a second processing module 822, etc.

[0669] In some embodiments, the second processing module 822 is configured to determine a first capability of a first terminal, and the second transceiving module 821 is configured to send second information to a first network function, the second information comprising the first capability of the first terminal, wherein the second terminal is configured to process a first service associated with the first terminal.

[0670] In some embodiments, the first information comprises a first request for triggering the first service.

[0671] In some embodiments, the first capability of the first terminal is comprised in the first request or not comprised in the first request.

[0672] In some embodiments, the first request in the first information comprises the first capability or the first information comprises the first capability and the first request does not comprise the first capability.

[0673] In some embodiments, the first information further comprises a parameter of the first request of the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0674] In some embodiments, the second information is determined based on the first information. Optionally, the second information comprises a third request for triggering the first service.

[0675] In some embodiments, the second processing module 822 is further configured to determine the second information based on the first information.

[0676] In some embodiments, the determining the second information based on the first information comprises at least one of:

[0677] determining a first capability of a first terminal comprised in the second information based on a first capability of a first terminal comprised in the first information;

[0678] determining a third request of the first service comprised in the second information based on a first request of the first service comprised in the first information;

[0679] determining that the third request of the first service comprised in the second information is the first request of the first service comprised in the first information;

[0680] determining a third request of the first service comprised in the second information based on a first capability of a first terminal and a parameter of a first request of the first service comprised in the first information.

[0681] In some embodiments, the first capability of the first terminal is comprised in the third request or not comprised in the third request.

[0682] In some embodiments, the third request in the second information comprises the first capability or the second information comprises the first capability and the third request does not comprise the first capability.

[0683] In some embodiments, the first capability of the first terminal comprises at least one of:

[0684] a ranging and sidelink positioning capability;

[0685] a V2X communication capability;

[0686] a 5G proximity service capability;

[0687] a capability of performing the first service via V2X communication over PC5;

[0688] a capability of performing the first service via 5G proximity service.

[0689] In some embodiments, the third request of the first service can be a terminal-originated request of the first service associated with the first terminal.

[0690] In some embodiments, the first service comprises a ranging and / or sidelink positioning service.

[0691] In some embodiments, the first network function is a network function for access and mobility management serving the second terminal.

[0692] In some embodiments, the second processing module 822 is further configured to perform the steps related to determining the first capability of the first terminal performed by the second terminal in any of the above methods, for example, step S21 shown in FIG. 2, which will not be repeated here.

[0693] In some embodiments, the second processing module 822 is further configured to perform the steps related to determining the second information performed by the second terminal in any of the above methods, which will not be repeated here.

[0694] Optionally, the second transceiver module 821 is further configured to perform the steps related to performing communication performed by the second terminal in any of the above methods, for example, at least one of step S22 shown in FIG. 2, steps S201, 202 shown in FIG. 2a, steps S210-1 to S212 shown in FIG. 2b, which will not be repeated here.

[0695] FIG. 8c is a structural schematic diagram of the first network function according to the embodiments of the present disclosure. As shown in FIG. 8c, the first network function comprises at least one of a third transceiver module 831, a third processing module 832, etc.

[0696] In some embodiments, the third transceiver module 831 is configured to receive the second information sent by the second terminal, the second information comprising the first capability of the first terminal; and configured to send third information to the second network function, the third information comprising the first capability of the first terminal; wherein the second terminal is configured to process the first service associated with the first terminal.

[0697] In some embodiments, the second information is first information received by the second terminal from the first terminal, the first information comprising a first capability of the first terminal; and the second information comprises a third request for triggering the first service.

[0698] In some embodiments, the first information comprises a first request for triggering the first service.

[0699] In some embodiments, the first capability of the first terminal is comprised in the first request or not comprised in the first request.

[0700] In some embodiments, the first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

[0701] In some embodiments, the first information further comprises a parameter of the first request for the first service. Optionally, the parameter is used by the second terminal to determine the first request.

[0702] In some embodiments, the second information is determined based on the first information, comprising at least one of:

[0703] The first capability of the first terminal comprised in the second information is determined based on the first capability of the first terminal comprised in the first information;

[0704] The third request for the first service comprised in the second information is determined based on the first request for the first service comprised in the first information;

[0705] The third request for the first service comprised in the second information is determined as the first request for the first service comprised in the first information;

[0706] The third request for the first service comprised in the second information is determined based on the first capability of the first terminal and a parameter of the first request for the first service comprised in the first information.

[0707] In some embodiments, the second information is determined based on the first information and / or fourth information received by the second terminal from the first terminal.

[0708] Optionally, the first information comprises a first capability of the first terminal, and the second information comprises a third request for triggering the first service.

[0709] Optionally, the fourth information comprises a first request for triggering the first service or a parameter of the first request, the parameter being used by the second terminal to determine the first request.

[0710] In some embodiments, the second information is determined based on the first information and / or the fourth information, comprising at least one of:

[0711] The first capability of the first terminal comprised in the second information is determined based on the first capability of the first terminal comprised in the first information;

[0712] The third request of the first service comprised in the second information is determined based on the first request of the first service comprised in the fourth information;

[0713] The third request of the first service comprised in the second information is determined as the first request of the first service comprised in the fourth information;

[0714] The third request of the first service comprised in the second information is determined based on the first capability of the first terminal comprised in the first information and the parameter of the first request comprised in the fourth information.

[0715] In some embodiments, the first capability of the first terminal is comprised in the third request, or not comprised in the third request.

[0716] In some embodiments, the third request in the second information comprises the first capability, or the second information comprises the first capability and the third request does not comprise the first capability.

[0717] In some embodiments, the first capability of the first terminal comprises at least one of:

[0718] Capability of ranging and sidelink positioning;

[0719] Capability of V2X communication;

[0720] Capability of 5G proximity service;

[0721] Capability of the first service by V2X communication over PC5;

[0722] Capability of the first service by 5G proximity service.

[0723] In some embodiments, the third request of the first service can be a terminal originated request of the first service associated with the first terminal.

[0724] In some embodiments, the first service comprises: ranging and / or sidelink positioning service.

[0725] In some embodiments, the first network function is a network function for access and mobility management serving the second terminal, and the second network function is a network function for positioning management serving the second terminal.

[0726] FIG. 8d is a structural schematic diagram of a second network function according to the embodiments of the present disclosure. As shown in FIG. 8d, the second network function can include at least one of a fourth transceiver module 841, a fourth processing module 842, and the like.

[0727] In some embodiments, the fourth transceiver module 841 is configured to receive third information sent by a first network function, the third information including information of at least one first terminal; and the fourth processing module 842 is configured to determine at least one third terminal based on a first capability of the first terminal, wherein a first capability of each third terminal in the at least one third terminal matches the first capability of the first terminal, and the at least one third terminal is used for a first service associated with the first terminal.

[0728] In some embodiments, the first capability includes at least one of the following:

[0729] a capability of ranging and sidelink positioning;

[0730] a capability of V2X communication;

[0731] a capability of 5G proximity service;

[0732] a capability of performing the first service through V2X communication over PC5;

[0733] a capability of performing the first service through 5G proximity service.

[0734] In some embodiments, the first service includes ranging and / or sidelink positioning service.

[0735] In some embodiments, the first network function is a network function for access and mobility management serving the second terminal, and the second network function is a network function for positioning management serving the second terminal.

[0736] FIG. 9a is a structural schematic diagram of a communication device 9100 according to the embodiments of the present disclosure. The communication device 9100 can be a network function (such as an access network device, a core network device, etc.), a terminal (such as a user equipment, etc.), a chip, a chip system, or a processor supporting the implementation of the network function to implement any of the above methods, or a chip, a chip system, or a processor supporting the implementation of the terminal to implement any of the above methods. The communication device 9100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0737] As shown in FIG. 9a, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general processor or a special purpose processor, etc., for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, the central processing unit can be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. The processor 9101 is configured to invoke instructions to enable the communication device 9100 to perform any of the above methods.

[0738] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceiver 9103 performs at least one of the communication steps (e.g., at least one of steps S22-S24 shown in FIG. 2, steps S201, S202, S203 shown in FIG. 2a, steps S210-1, S210-2, S211, S212, S213 shown in FIG. 2b, but not limited thereto) of the above methods, and the processor 9101 performs at least one of the other steps (e.g., at least one of steps S21 shown in FIG. 2, steps S204 shown in FIG. 2a, steps S214 shown in FIG. 2b, but not limited thereto). In optional embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0739] In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memory 9102 can also be outside the communication device 9100.

[0740] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the communication steps of the above methods are performed by the transceiver 9103, and the other steps are performed by the processor 9101.

[0741] In some embodiments, the transceiver can include a receiver and a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0742] Optionally, the communication device 9100 further includes one or more interface circuits 9104 connected with the memory 9102, which can be used to receive signals from the memory 9102 or other devices, and can be used to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 can read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0743] The communication device 9100 described in the above embodiments can be a network function or a terminal, but the scope of the communication device 9100 described in the embodiments of the present disclosure is not limited to this, and the structure of the communication device 9100 can not be limited by FIG. 9a. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network function, a cloud device, an artificial intelligence device, etc.; (6) other devices, etc.

[0744] FIG. 9b is a structural schematic diagram of a chip 9200 according to an embodiment of the present disclosure. For the case where the communication device 9100 is a chip or a chip system, the structural schematic diagram of the chip 9200 shown in FIG. 9b can be referred to, but is not limited thereto.

[0745] The chip 9200 includes one or more processors 9201. The chip 9200 is configured to execute any of the above methods.

[0746] In some embodiments, the chip 9200 further includes one or more interface circuits 9202. Optionally, the terms interface circuit, interface, and transceiver pin can be replaced with each other. In some embodiments, the chip 9200 further includes one or more memories 9203 for storing data. Optionally, all or part of the memory 9203 can be outside the chip 9200. Optionally, the interface circuit 9202 is connected with the memory 9203, and the interface circuit 9202 can be used to receive data from the memory 9203 or other devices, and the interface circuit 9202 can be used to send data to the memory 9203 or other devices. For example, the interface circuit 9202 can read data stored in the memory 9203 and send the data to the processor 9201.

[0747] In some embodiments, the interface circuit 9202 performs at least one of the communication steps (for example, at least one of steps S22-S24 illustrated in FIG. 2, steps S201, S202, S203 illustrated in FIG. 2a, steps S210-1, S210-2, S211, S212, S213 illustrated in FIG. 2b, but not limited to) of transmitting and / or receiving in the above-described methods. The interface circuit 9202 performing the communication steps of transmitting and / or receiving in the above-described methods refers to, for example, the interface circuit 9202 performing data interaction between the processor 9201, the chip 9200, the memory 9203, or the transceiver device. In some embodiments, the processor 9201 performs at least one of other steps (for example, at least one of steps S21 illustrated in FIG. 2, step S204 illustrated in FIG. 2a, step S214 illustrated in FIG. 2b, but not limited to).

[0748] The disclosure also proposes a program product, which, when executed by the communication device 9100, causes the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0749] The disclosure also proposes a computer program, which, when running on a computer, causes the computer to perform any of the above methods.

[0750] The technical solutions described in the embodiments of the disclosure can be arbitrarily combined without conflict.

[0751] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The disclosure is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the application are indicated by the following claims.

[0752] It should be understood that the application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A communication method characterized by comprising: The method is performed by a second terminal, and the method comprises: determining a first capability of a first terminal; sending second information to a first network function, the second information comprising the first capability of the first terminal; wherein the second terminal is configured to process a first service associated with the first terminal.

2. The method of claim 1, wherein, The determining of the first capability of the first terminal comprises at least one of ： receiving first information sent by the first terminal, and determining the first capability of the first terminal according to the first information, the first information comprising the first capability of the first terminal; determining the first capability of the first terminal according to local records or configuration information; determining the first capability of the first terminal according to V2X communication or 5G proximity service communication between the first terminal and the second terminal.

3. The method of claim 2, wherein, The first information comprises a first request for triggering the first service.

4. The method of claim 3, wherein, The first request in the first information comprises the first capability, or the first information comprises the first capability and the first request does not comprise the first capability.

5. The method of claim 2, wherein, The first information further comprises a parameter of the first request, the parameter being used by the second terminal to determine the first request.

6. The method according to any one of claims 2-5, characterized in that, The method further comprises: determining the second information based on the first information; wherein the second information comprises a third request for triggering the first service.

7. The method of claim 6, wherein, The determining of the second information based on the first information comprises at least one of determining the first capability of the first terminal comprised in the second information based on the first capability of the first terminal comprised in the first information; determining the third request of the first service comprised in the second information based on the first request of the first service comprised in the first information; determining the third request of the first service comprised in the second information as the first request of the first service comprised in the first information; determining the third request of the first service comprised in the second information based on the first capability of the first terminal and a parameter of the first request of the first service comprised in the first information.

8. The method of claim 2, wherein, Further comprising: sending a second request to the first terminal, the second request being used to request the first capability of the first terminal.

9. The method of claim 8, wherein, Further comprising: receiving fourth information sent by the first terminal, the fourth information comprising: a first request for triggering the first service, or a parameter of the first request, the parameter being used by the second terminal to determine the first request.

10. The method of claim 9, wherein, Further comprising: determining the second information based on the first information and / or the fourth information; wherein the second information comprises a third request for triggering the first service.

11. The method of claim 10, wherein, The determining of the second information based on the first information and / or the fourth information comprises at least one of determining the first capability of the first terminal comprised in the second information based on the first capability of the first terminal comprised in the first information; determining the third request of the first service comprised in the second information based on the first request of the first service comprised in the fourth information; determining the third request of the first service comprised in the second information as the first request of the first service comprised in the fourth information; determine, based on the first capability of the first terminal included in the first information and a parameter of the first request included in the fourth information, a third request of the first service included in the second information.

12. The method of any one of claims 6, 7, 10, 11, wherein, the third request in the second information includes the first capability, or the second information includes the first capability and the third request does not include the first capability.

13. The method of any one of claims 6, 7, 10, 11, wherein, the third request of the first service is a terminal-originated request of the first service associated with the first terminal.

14. The method of any one of claims 1-13, wherein, the first capability of the first terminal includes at least one of: a capability of ranging and sidelink positioning; a capability of V2X communication; a capability of 5G proximity service; a capability of the first service through V2X communication over PC5; a capability of the first service through 5G proximity service.

15. The method of any one of claims 1-14, wherein, the first network function is a network function for access and mobility management serving the second terminal.

16. A method of communication, comprising: the method is performed by a first terminal, and the method includes: sending, to a second terminal, first information including a first capability of the first terminal, the second terminal being configured to process a first service associated with the first terminal.

17. The method of claim 16, wherein, the first information includes a first request for triggering the first service.

18. The method of claim 17, wherein, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

19. The method of claim 17, wherein, the first request of the first service is a terminal-originated request of the first service.

20. The method of claim 16, wherein, the first information further includes a parameter of the first request, the parameter being used by the second terminal to determine the first request.

21. The method of claim 16, wherein, further comprising: receiving a second request sent by the second terminal, the second request being used to request the first capability of the first terminal.

22. The method of claim 21, wherein, further comprising: receiving fourth information sent by the second terminal, the fourth information including: a first request for triggering the first service, or a parameter of the first request, the parameter being used by the second terminal to determine the first request.

23. The method of any one of claims 16-22, wherein, the first capability of the first terminal includes at least one of: a capability of ranging and sidelink positioning; a capability of V2X communication; a capability of 5G proximity service; a capability of the first service through V2X communication over PC5; a capability of the first service through 5G proximity service.

24. A method of communication, comprising: the method is performed by a first network function, and the method includes: receiving second information sent by a second terminal, the second information including a first capability of a first terminal; sending, to a second network function, third information including the first capability of the first terminal; wherein the second terminal is configured to process a first service associated with the first terminal.

25. The method of claim 24, wherein: the second information is determined based on first information received by the second terminal from the first terminal, the first information including a first capability of the first terminal, and the second information including a third request for triggering the first service.

26. The method of claim 25, wherein, the first information includes a first request for triggering the first service.

27. The method of claim 26, wherein, the first request in the first information includes the first capability, or the first information includes the first capability and the first request does not include the first capability.

28. The method of claim 25, wherein, The first information further comprises a parameter of the first request, and the parameter is used by the second terminal to determine the first request.

29. The method of any one of claims 25-28, wherein, The second information is determined based on the first information and comprises at least one of the following: The first capability of the first terminal comprised in the second information is determined based on the first capability of the first terminal comprised in the first information; The third request of the first service comprised in the second information is determined based on the first request of the first service comprised in the first information; The third request of the first service comprised in the second information is determined as the first request of the first service comprised in the first information; The third request of the first service comprised in the second information is determined based on the first capability of the first terminal comprised in the first information and the parameter of the first request comprised in the first information.

30. The method of claim 24, wherein, The second information is determined based on the first information and / or fourth information received by the second terminal from the first terminal; The first information comprises the first capability of the first terminal, and the second information comprises a third request for triggering the first service; The fourth information comprises the first request for triggering the first service or a parameter of the first request, and the parameter is used by the second terminal to determine the first request.

31. The method of claim 30, wherein, The second information is determined based on the first information and / or fourth information and comprises at least one of the following: The first capability of the first terminal comprised in the second information is determined based on the first capability of the first terminal comprised in the first information; The third request of the first service comprised in the second information is determined based on the first request of the first service comprised in the fourth information; The third request of the first service comprised in the second information is determined as the first request of the first service comprised in the fourth information; The third request of the first service comprised in the second information is determined based on the first capability of the first terminal comprised in the first information and the parameter of the first request comprised in the fourth information.

32. The method according to any of claims 25-31, characterized by, The third request in the second information comprises the first capability, or the second information comprises the first capability and the third request does not comprise the first capability.

33. The method of any of claims 25-32, wherein, The third request of the first service is a terminal-originated request of the first service associated with the first terminal.

34. The method of any one of claims 24-33, wherein, The first capability of the first terminal comprises at least one of the following: A capability of ranging and sidelink positioning; A capability of V2X communication; A capability of 5G proximity service; A capability of the first service through V2X communication over PC5; A capability of the first service through 5G proximity service.

35. The method of any one of claims 24-34, wherein, The first network function is a network function for access and mobility management serving the second terminal, and the second network function is a network function for positioning management serving the second terminal.

36. A first terminal, comprising: Comprise: A first transceiver module, configured to send first information to a second terminal, the first information comprising a first capability of the first terminal, and the second terminal being used to process a first service associated with the first terminal.

37. A second terminal, comprising: Comprise: A second processing module, configured to determine a first capability of a first terminal; The second transceiving module is configured to send second information to the first network function, the second information comprising a first capability of the first terminal; and the second terminal is configured to process a first service associated with the first terminal.

38. A first network function, the first network function comprising: The method comprises: The third transceiving module is configured to receive second information sent by the second terminal, the second information comprising a first capability of the first terminal. The method further comprises:

39. A communications device, characterized by The third transceiving module is configured to send third information to the second network function, the third information comprising the first capability of the first terminal; and the second terminal is configured to process the first service associated with the first terminal. The method comprises: One or more processors; 40. A communication system, characterized by The processor is configured to perform the communication method of any one of claims 1-15, or 16-23, or 24-35. The first network function is configured to implement the method of any one of claims 24-35.

41. A computer-readable storage medium, comprising: The computer readable storage medium stores executable instructions, which are loaded and executed by the processor to implement the method of any one of claims 1-15, or 16-23, or 24-35.

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