Terminal discovery method, device, equipment, and storage medium

Abstract

The present application discloses a terminal discovery method, an apparatus, a device, and a storage medium, which belong to the technical field of communication. The terminal discovery method of the embodiment of the present application includes: a first terminal obtaining first configuration information related to a first service including a ranging service and / or a sidelink positioning service; and the first terminal transmitting a first request message to a second terminal to request discovery of a second terminal supporting the first service.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed on March 24, 2022, bearing application number 202210303809.6 and titled "Terminal discovery method, device, equipment and storage medium," all of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and more particularly to a terminal discovery method, device, equipment, and storage medium. [Background technology]

[0003] With the development of communication technology, new use cases such as ranging based services and sidelink positioning have been proposed. Here, ranging refers to determining the distance between two terminals or multiple terminals and / or the direction and / or relative position of one terminal (i.e., target terminal) and another terminal (i.e., reference terminal) through direct connection of devices. Sidelink positioning refers to measuring the position of a terminal using the PC5 interface. Ranging based services and sidelink positioning are expected to be used in various vertical fields, such as consumer, smart home, smart city, smart transportation, smart retail, and industry 4.0.

[0004] In the above-mentioned different application fields, communication between terminals can be realized using different access technologies. For example, LTE-based vehicle-to-everything (V2X) communication, the sidelink of the new wireless communication NR, and other radio access technologies (Radio Access Technologies, RATs) that can be supported by PC5 can be included. Therefore, how to enable a terminal supporting ranging services and sidelink positioning to discover another terminal supporting ranging services and sidelink positioning before performing ranging-based services and sidelink positioning is an urgent technical problem to be solved by those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a terminal discovery method, an apparatus, a device, and a storage medium that enable a terminal supporting ranging services and sidelink positioning to discover another terminal supporting ranging services and sidelink positioning.

[0006] In a first aspect, a terminal discovery method applied to a first terminal, comprising: A first terminal obtains first configuration information related to a first service, the first service including a ranging service and / or a sidelink positioning service; and the first terminal sending a first request message to a second terminal to request discovery of a second terminal supporting the first service.

[0007] In a second aspect, a terminal discovery method applied to a second terminal, comprising: A second terminal obtains second configuration information related to the first service, which is a terminal discovery related service; and receiving, by the second terminal, a first request message sent from the first terminal, the first request message being used for discovering a second terminal supporting the first service.

[0008] In a third aspect, a terminal discovery method applied to a first network side, comprising: A terminal discovery method is provided, the method including a step of a first network side transmitting first configuration information used for a first service including a ranging service and / or a sidelink positioning service to a first terminal.

[0009] In a fourth aspect, a terminal discovery method applied to a second network side, comprising: A terminal discovery method is provided, the method including a step of a second network side transmitting second configuration information used for a first service including a ranging service and / or a sidelink positioning service to a second terminal.

[0010] In a fifth aspect, there is provided a terminal discovery device applied to a first terminal, a first acquiring module adapted to acquire first location information related to a first service, the first location information including a ranging service and / or a sidelink positioning service; A terminal discovery device is provided, comprising: a first sending module used for sending a first request message to a second terminal for requesting discovery of a second terminal supporting the first service.

[0011] In a sixth aspect, there is provided a terminal discovery device applied to a second terminal, a second acquiring module adapted to acquire second configuration information related to the first service, the first service being a terminal discovery related service; A terminal discovery device is provided, comprising: a second receiving module adapted to receive a first request message transmitted from a first terminal and used for discovery of a second terminal supporting the first service.

[0012] In a seventh aspect, a terminal discovery device applied to a first network side, comprising: A terminal discovery device is provided, comprising a fifth sending module used for sending first location information to a first terminal, the first location information being used for a first service including a ranging service and / or a sidelink positioning service.

[0013] In an eighth aspect, a terminal discovery device applied to a second network side, comprising: A terminal discovery device is provided, comprising a sixth sending module used for sending second location information to a second terminal, the second location information being used for a first service including a ranging service and / or a sidelink positioning service.

[0014] In a ninth aspect, there is provided a first terminal comprising a processor and a memory storing programs or commands executable by the processor, the programs or commands implementing the steps of the method according to the first aspect when executed by the processor.

[0015] In a tenth aspect, a first terminal is provided, comprising: a processor adapted to obtain first configuration information related to a first service; and a communication interface adapted to send a first request message to a second terminal.

[0016] In an eleventh aspect, there is provided a second terminal comprising a processor and a memory storing programs or commands executable by the processor, the programs or commands, when executed by the processor, realising the steps of the method according to the second aspect.

[0017] In a twelfth aspect, a second terminal is provided, comprising: a processor used for obtaining second configuration information related to a first service; and a communication interface used for receiving a first request message sent from the first terminal.

[0018] In a thirteenth aspect, there is provided a first network side device comprising a processor and a memory for storing programs or commands executable by the processor, the programs or commands being executed by the processor to realise the steps of the method according to the third aspect.

[0019] In a fourteenth aspect, a first network side device is provided, comprising: a processor; and a communication interface used for transmitting first configuration information to a first terminal, the first configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

[0020] In a fifteenth aspect, there is provided a second network side device comprising a processor and a memory for storing programs or commands executable by the processor, the program or command being executed by the processor to realise the steps of the method according to the fourth aspect.

[0021] In a sixteenth aspect, a second network side device is provided, comprising a processor and a communication interface used for transmitting second configuration information to a second terminal, the second configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

[0022] In a 17th aspect, there is provided a terminal discovery system comprising: a first terminal usable for executing steps of the terminal discovery method described in the first aspect; a second terminal usable for executing steps of the terminal discovery method described in the second aspect; a first network side device usable for executing steps of the terminal discovery method described in the third aspect; and a second network side device usable for executing steps of the terminal discovery method described in the fourth aspect.

[0023] In an eighteenth aspect, there is provided a readable storage medium storing a program or commands which, when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the second aspect, or performs the steps of the method according to the third aspect, or performs the steps of the method according to the fourth aspect.

[0024] In a 19th aspect, there is provided a chip comprising a processor and a communications interface, the communications interface and the processor being coupled to each other, the processor executing a program or command to implement the method according to the first aspect, or to implement the method according to the second aspect, or to implement the method according to the third aspect, or to implement the method according to the fourth aspect.

[0025] In a twentieth aspect, there is provided a computer program / program product stored on a storage medium and executed by at least one processor to implement steps of the terminal discovery method described in the first aspect, or to implement steps of the terminal discovery method described in the second aspect, or to implement steps of the terminal discovery method described in the third aspect, or to implement steps of the terminal discovery method described in the fourth aspect. Effect of the Invention

[0026] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services. [Brief description of the drawings]

[0027] [Figure 1]1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] 1 is a flowchart of a terminal discovery method provided in an embodiment of the present application; [Diagram 3] 2 is a flowchart of a terminal discovery method provided in an embodiment of the present application; [Figure 4] 3 is a flowchart of a terminal discovery method provided in an embodiment of the present application; [Diagram 5] 4 is a flowchart 4 of a terminal discovery method provided in an embodiment of the present application. [Figure 6] 5 is a flowchart 5 of a terminal discovery method provided in an embodiment of the present application. [Figure 7] 6 is a flowchart 6 of a terminal discovery method provided in an embodiment of the present application. [Figure 8] FIG. 1 is a schematic diagram of the configuration of a terminal discovery device provided in an embodiment of the present application; [Figure 9] FIG. 2 is a schematic diagram of the configuration of a terminal discovery device provided in an embodiment of the present application; [Figure 10] FIG. 3 is a schematic diagram of the configuration of a terminal discovery device provided in an embodiment of the present application; [Figure 11] FIG. 4 is a schematic diagram of the configuration of a terminal discovery device provided in an embodiment of the present application; [Figure 12] FIG. 2 is a schematic diagram of the configuration of a communication device provided in an embodiment of the present application. [Figure 13] FIG. 2 is a schematic diagram of a hardware configuration of a first terminal for implementing an embodiment of the present application. [Figure 14] FIG. 2 is a schematic diagram of a hardware configuration of a second terminal for implementing an embodiment of the present application. [Figure 15] 2 is a schematic diagram of a hardware configuration of a first network side device for implementing an embodiment of the present application. FIG. [Figure 16] 2 is a schematic diagram of a hardware configuration of a second network side device for implementing an embodiment of the present application. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application. Of course, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art are within the scope of protection of the present application.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. It should be understood that the terms used in this manner may be substituted for one another where appropriate, so that the embodiments of the present application may be practiced in an order other than that shown or described herein. It should also be understood that the objects distinguished by "first" and "second" generally belong to one category and do not limit the number of objects, for example, the first object may be one or more. In the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0030] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the techniques described can be used in other systems and wireless technologies in addition to the systems and wireless technologies mentioned above. In the following description, a New Radio (NR) system is described for illustrative purposes. Although NR terminology is used in much of the following description, these techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0031] 1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted equipment (VUE), a pedestrian terminal (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game machine, a personal computer (PC), an automated teller machine, a kiosk, or other terminal side device. The wearable device includes a smart watch, a smart wristband, a smart earphone, a smart glasses, a smart accessory (such as a smart bracelet, a smart ring, a smart necklace, a smart ankle, a smart anklet, etc.), a smart wristlet, a smart wear, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network side equipment 12 may include an access network equipment or a core network equipment. Here, the access network equipment 12 may be called a radio access network equipment, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network unit.The access network equipment 12 may include a base station, a WLAN access point, or a WiFi node, etc., and the base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home B node, a home evolved B node, a transmitting receiving point (TRP), or any other suitable term in the art, and the base station is not limited to a specific technical term as long as the same technical effect can be achieved. It should be noted that the embodiment of this application only takes the base station in the NR system as an example, but the specific type of the base station is not limited.The core network devices are: Core Network Node, Core Network Function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF or L-NEF), Binding Support Function (BSF), Application Function (Application Response Function (APPF)), Application Response Function (APF) and Application Response Function (APF). The present application may include, but is not limited to, at least one of the following: A-F (Automatic Frequency Division Multiplexing) Function (AF), etc. In the embodiments of the present application, only the core network device in the NR system is introduced as an example, but it should be explained that the specific type of the core network device is not limited.

[0032] Next, a terminal discovery method, device, apparatus, and storage medium provided in the embodiments of the present application will be described in detail based on several embodiments and use cases thereof with reference to the drawings.

[0033] FIG. 2 is a flow chart 1 of a terminal discovery method provided in an embodiment of the present application. As shown in FIG. 2, the method includes: A step 200 in which a first terminal obtains first configuration information related to a first service, the first service including a ranging service and / or a sidelink positioning service; The method includes a step 210 in which the first terminal sends a first request message to a second terminal to request discovery for a second terminal supporting the first service.

[0034] Optionally, the first service represents a ranging and / or sidelink positioning service and may be a ranging service, a sidelink positioning service or a ranging and sidelink positioning service.

[0035] Here, ranging refers to determining the distance between two User Equipments (UEs) and / or the direction between one UE (i.e., target UE) and another UE (i.e., observer UE) through direct connection of devices. In the case of 3D, the direction includes horizontal and vertical. A ranging-based service may measure only distance, only direction, or both distance and direction.

[0036] Ranging-based services can be expected to be used in various vertical areas, such as consumer, smart home, smart city, smart transportation, smart retail and Industry 4.0. For example, in the following cases:

[0037] Smart Home TV Control: Based on the distance between the UE and the TV reference point, the direction from the TV reference point to the UE, and the direction from the UE to the TV reference point, the smart TV derives the TV screen area for the UE, allowing the determination of cursor placement position and user selected content.

[0038] Granting remote access privileges: The mobile phone UE1 can remotely monitor the distance between a guest carrying a UE2 and a rangeable door to determine when to unlock the door and allow the guest access.

[0039] Ranging may refer to determining the distance between two or more UEs and / or the direction and / or relative position between one UE (i.e., a target UE) and another UE (i.e., a reference UE) via a PC5 interface.

[0040] Sidelink Positioning: Determines the UE's position using PC5.

[0041] Positioning: The ability to detect the geographic location and optional speed (e.g., of a mobile terminal).

[0042] Relative Location: Estimating the location of the UE relative to other network elements or other UEs.

[0043] The first service may be the first terminal attempting to obtain relative information (e.g., relative position) between the first terminal and other terminals, or absolute information (e.g., geographical location, velocity), or the first terminal attempting to obtain relative information or absolute information between the first terminal and other network elements (which may be understood as network side equipment, base station, RSU, etc.).

[0044] Optionally, the first terminal may obtain first configuration information related to the first service, and the first configuration information is used for the first terminal to configure information required for use when the first terminal executes the first service.

[0045] Optionally, when the first terminal needs to discover a second terminal that supports the first service, the first terminal can send a first request message to the second terminal, and when the second terminal receives the first request message, the second terminal can know that the first terminal is attempting to discover a terminal that supports the first service. In this way, it is possible for a terminal that supports the first service to discover another terminal that supports the first service.

[0046] Optionally, the first network side does not have to transmit the first configuration information to the first terminal every time the first service is executed. The timing of transmitting the first configuration information from the first network side to the first terminal is not limited to the embodiment of the present application.

[0047] In one embodiment, when the first terminal is registered on a first network side, the first network side sends the first configuration information to the first terminal.

[0048] In another embodiment, the first terminal may request to obtain or update the first configuration information at any time.

[0049] In another embodiment, the first configuration information is configured in the first terminal in a pre-configured manner.

[0050] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0051] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0052] Optionally, the first request message may include any one or more of the following: (a) a first request message for a first request, the first request message for a second request, and the second request message for a second request.

[0053] (a) first indication information for indicating that the first request message is used for the first service;

[0054] In one embodiment, the first indication information may have a length of 1 bit, where bit 0 indicates that the first indication information indicates that the first request message is not used for a first service, while bit 1 indicates that the first indication information indicates that the first request message is used for a first service.

[0055] (b) third instruction information for instructing the second terminal to transmit second auxiliary information for assisting the first terminal in discovering a second terminal supporting the first service;

[0056] In one embodiment, the first terminal may transmit third instruction information via a first request message to instruct the second terminal to transmit the second auxiliary information, and the second terminal may transmit the second auxiliary information to the first terminal after receiving the third instruction information. For example, the second auxiliary information may be transmitted to the first terminal via a first request response message, and the first terminal may determine whether the second terminal supports the first service based on the second auxiliary information after receiving the second auxiliary information.

[0057] (c) a first message type for indicating a message type of the first request message.

[0058] In one embodiment, the message types of the different messages may include a first service discovery request message, a first service discovery request response message.

[0059] In one embodiment, the first message type is used to directly indicate that the message type of the existing message is the first service discovery request message.

[0060] (d) a terminal identifier of the first terminal, including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal.

[0061] Here, the logical identifier of the first terminal refers to a logical identifier that is assigned by a network or an application server and can uniquely identify the first terminal, such as a combination of specific strings, a layer-2 identifier (layer-2 ID), a terminal identifier related to traffic information, etc., which is managed by and / or assigned by an application layer.

[0062] (e) a terminal identifier of the second terminal, including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal.

[0063] Here, the logical identifier of the second terminal refers to a logical identifier that is assigned by a network or an application server and can uniquely identify the second terminal, such as a combination of specific strings, a layer-2 identifier (layer-2 ID), a terminal identifier related to traffic information, etc., which is managed by and / or assigned by an application layer.

[0064] (f) first traffic information for indicating requested traffic information to the first terminal;

[0065] (g) first auxiliary information for assisting the first terminal in discovering a second terminal that supports the first service;

[0066] (h) Reference signal transmission method.

[0067] (i) Result determination method.

[0068] In one embodiment, the first request message may be a PROSE PC5 DISCOVERY message in an existing mechanism.

[0069] In one embodiment, the first request message may be a RANGING PC5 DISCOVERY message, which is a new message separate from the existing message.

[0070] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0071] Optionally, the first auxiliary information may include reference signal information of the first terminal.

[0072] Optionally, the first auxiliary information may include algorithm information of the first terminal.

[0073] Optionally, the first auxiliary information may include measurement request information of the first terminal.

[0074] Optionally, the first auxiliary information may include reference signal information of the first terminal and algorithm information of the first terminal.

[0075] Optionally, the first auxiliary information may include reference signal information of the first terminal and measurement request information of the first terminal.

[0076] Optionally, the first auxiliary information may include algorithm information of the first terminal and measurement request information of the first terminal.

[0077] Optionally, the first terminal or the second terminal may use all or a part of the first auxiliary information when discovering a terminal supporting the first service based on the first auxiliary information, regardless of whether the first auxiliary information includes one item or multiple items. Optionally, the algorithm information of the first terminal is algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm precision, etc.

[0078] Optionally, the reference signal information of the first terminal may represent information of a reference signal used by the first terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0079] Optionally, the measurement request information of the first terminal includes measurement accuracy and / or Quality of Service (QoS) information.

[0080] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0081] Optionally, the first traffic information is: a traffic code corresponding to the first terminal used for at least one of identifying that the first terminal needs to use the first service, identifying that the first terminal is authorized to use the first service, and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the first terminal indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the first terminal.

[0082] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0083] Optionally, the first terminal can transmit address information of the first terminal to the second terminal.

[0084] Optionally, the first terminal can transmit to the second terminal address information of the second terminal.

[0085] Optionally, the first terminal can transmit to the second terminal the address information of the first terminal and the address information of the second terminal.

[0086] Optionally, the address information of the first terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0087] Optionally, the address information of the second terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0088] Optionally, the address information of the first terminal and the address information of the second terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0089] Optionally, after the first terminal sends the first request message to the second terminal, if the second terminal determines based on the first request message that the first terminal and the second terminal both support the first service, the second terminal can directly start a related flow for executing the first service. In this way, after the first terminal sends the first request message to the second terminal and the second terminal starts a flow related to the first service, the first terminal can move to a flow for executing the first service together with the second terminal. It should be noted that the embodiment of the present application does not limit how the flow of the first service is executed.

[0090] Optionally, after the step of the first terminal sending a first request message to a second terminal, the method further comprises: The method further includes a step of the first terminal receiving a first request response message transmitted from the second terminal and used to indicate that the second terminal has received the first request message of the first terminal.

[0091] Optionally, after the first terminal transmits a first request message to the second terminal, the first terminal may receive a first request response message transmitted from the second terminal, the first request response message being used to indicate that the second terminal has received the first request message of the first terminal.

[0092] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0093] Optionally, the first request response message may include any one or more of the following (j)-(q):

[0094] (j) second instruction information for indicating that the first request response message is used for the first service.

[0095] (k) a second message type for indicating a message type of the first request response message.

[0096] In one embodiment, the message types of the different messages may include a first service discovery request message, a first service discovery request response message.

[0097] In one embodiment, the second message type is used to directly indicate that the type of message present is a first service discovery request response message.

[0098] (l) second traffic information for indicating traffic information provided by the second terminal;

[0099] (m) a terminal identifier of the first terminal including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal.

[0100] Here, the logical identifier of the first terminal refers to a logical identifier that is assigned by a network or an application server and can uniquely identify the second terminal, such as a combination of specific strings, a layer-2 identifier (layer-2 ID), a terminal identifier related to traffic information, etc., which is managed by and / or assigned by the application layer.

[0101] (n) a terminal identifier of the second terminal including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal.

[0102] Here, the logical identifier of the second terminal refers to a logical identifier that is assigned by a network or an application server and can uniquely identify the second terminal, such as a combination of specific strings, a layer-2 identifier (layer-2 ID), a terminal identifier related to traffic information, etc., which is managed by and / or assigned by the application layer.

[0103] (o) second auxiliary information for assisting the first terminal in discovering a second terminal that supports the first service;

[0104] (p) Reference signal transmission method.

[0105] (q) Result determination method.

[0106] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0107] Optionally, the second traffic information is a traffic code corresponding to the second terminal for use in at least one of: identifying that the second terminal needs to use the first service; identifying that the second terminal is authorized to use the first service; and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the second terminal for indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the second terminal.

[0108] In one embodiment, the first request response message includes the second traffic information, which may be understood to indicate that the second terminal can provide the first service related to the second traffic information. For example, when the second traffic information is a traffic identifier, it may be understood that the second terminal can provide the first service related to a traffic identified by the traffic identifier.

[0109] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0110] Optionally, the second terminal can transmit to the first terminal address information of the first terminal.

[0111] Optionally, the second terminal can transmit address information of the second terminal to the first terminal.

[0112] Optionally, the second terminal can transmit to the first terminal address information of the first terminal and address information of the second terminal.

[0113] Optionally, the address information of the first terminal may be included in the first request response message, or may be outside the first request response message and sent along with the first request response message.

[0114] Optionally, the address information of the second terminal may be included in the first request response message or may be outside the first request response message and sent along with the first request response message.

[0115] Optionally, the address information of the first terminal and the address information of the second terminal may be included in the first request response message, or may be outside the first request response message and sent along with the first request response message.

[0116] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0117] Optionally, the second auxiliary information may include reference signal information of the second terminal.

[0118] Optionally, the second auxiliary information may include algorithm information of the second terminal.

[0119] Optionally, the second auxiliary information may include measurement request information of the second terminal.

[0120] Optionally, the second auxiliary information may include reference signal information of the second terminal and algorithm information of the second terminal.

[0121] Optionally, the second auxiliary information may include reference signal information of the second terminal and measurement request information of the second terminal.

[0122] Optionally, the second auxiliary information may include algorithm information of the second terminal and measurement request information of the second terminal.

[0123] Optionally, whether the second auxiliary information contains one item or multiple items, the first terminal or the second terminal can use all or a part of the second auxiliary information when discovering a terminal supporting the first service based on the second auxiliary information.

[0124] Optionally, the algorithm information of the second terminal is algorithm information used by the second terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm precision, and the like.

[0125] Optionally, the reference signal information of the second terminal may represent information of a reference signal used by the second terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0126] Optionally, the measurement request information of the second terminal includes measurement accuracy and / or QoS information.

[0127] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0128] Optionally, the reference signal transmission scheme is transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The present invention relates to a method for transmitting a reference signal using an event trigger.

[0129] Optionally, the outcome determination method comprises: determining the first result by the first terminal; determining the first result by a second terminal; and at least one of determining said first outcome by a first terminal and a second terminal.

[0130] In some embodiments, the reference signal transmission method and the result determination method are correlated. For example, when the first terminal sets "transmission of a reference signal by the first terminal" as the reference signal transmission method in the first request message, the second terminal can infer that the "result determination method" of the first service is "determination of the first result by the second terminal" after receiving the first request message.

[0131] The result determination method can be selected as follows: determining the first result by the first terminal; determining the first result by a second terminal; The method includes any one or more of determining the first result by the first terminal and the second terminal.

[0132] Optionally, the first result may be a result obtained by performing a first service, such as a distance between two or more UEs and / or a direction and / or a relative position between one UE (i.e., a target UE) and another UE (i.e., a reference UE); optionally, the first result may be a result corresponding to a first service related to a second terminal obtained by a first terminal, the first result being: The information may include at least one of absolute position information of the second terminal, relative position information between the second terminal and the first terminal, accuracy information, and a measurement result of the second positioning reference signal.

[0133] Specifically, the absolute location information of the second terminal is, for example, a Timing Advance (TA), a Registration Area (RA), a cell identifier (ID), longitude and latitude, altitude above sea level, a horizontal angle or an elevation angle, and the like.

[0134] The relative position information is, for example, the relative angle or the relative distance of the second terminal to the first terminal.

[0135] The accuracy information represents accuracy information of the first result, and may include at least one of result dimension information, measurement accuracy, and error information, where the result dimension information is, for example, degrees, meters, centimeters, etc., the measurement accuracy is, for example, high accuracy, very high accuracy, and low accuracy, the error information includes error accuracy information and error dimension information, where the error accuracy information is, for example, high error, low error, and very low error, and the error dimension information is, for example, degrees, meters, centimeters, etc.

[0136] The measurement result represents a measurement result for the second positioning reference signal, for example, a signal strength, a value of a certain measurement quantity calculated using the second positioning reference signal, etc.

[0137] Optionally, FIG. 3 is a flowchart 2 of a terminal discovery method provided in an embodiment of the present application. As shown in FIG. 3, the second terminal can determine whether the first terminal and the second terminal can perform the first service based on the first request message (the second terminal determines the first result). In this case, the first network side can send first configuration information (including the parameters and policy configuration of UE-1) to the first terminal (e.g., UE-1 in FIG. 3), and the second network side can send the second configuration information (including the parameters and policy configuration of UE-1) to the second terminal (e.g., UE-2 and / or UE-3 in FIG. 3). 2 configuration information (including UE-2's parameters and policy configuration and UE-3's parameters and policy configuration), and the first terminal (e.g., UE-1 in FIG. 3) can send a first request message (which may be, for example, a ranging and positioning request) to the second terminal (e.g., UE-2 and / or UE-3 in FIG. 3), and after receiving the first request message, the second terminal can determine based on the first request message that it can perform the first service together with the first terminal, and directly start the flow of performing the first service.

[0138] Optionally, FIG. 4 is a flowchart 3 of a terminal discovery method provided in an embodiment of the present application. As shown in FIG. 4, the first terminal determines whether the second terminal supports a first service (the first result is determined by the first terminal and the second terminal), and the second terminal can determine based on the first request message that the first terminal and the second terminal all support the first service. In this case, the first network side can send first configuration information (including UE-1's parameters and policy configuration) to one terminal (e.g., UE-1 in FIG. 4), and the second network side can send second configuration information (including UE-2's parameters and policy configuration) to the second terminal (e.g., UE-2 in FIG. 4), and the first terminal (e.g., UE-1 in FIG. 4) can send a first request message (which may be, for example, a ranging and positioning request) to the second terminal (e.g., UE-2 in FIG. 4). After receiving the first request message, the second terminal can determine based on the first request message that it can perform the first service together with the first terminal. In this way, after sending the first request message response, the first terminal can determine that the second terminal also supports the first service based on the first request message response after receiving the first request message response.

[0139] Here, when the second terminal determines that the first terminal and the second terminal all support the first service, the determination can be made based on at least one of the first request message, the application layer instruction, the network side instruction, and the pre-configuration information.

[0140] Selectively, the first network side device and the second network side device may be the same or different.

[0141] Optionally, after the step of the first terminal receiving a first request response message sent from the second terminal, the method further comprises: The method further includes the step of: the first terminal performing a first operation based on the first request response message, the first operation including: The first terminal determines, based on the second indication information and the first indication information, that the second terminal supports a first service; The first terminal determines that the second terminal supports a first service based on a terminal identifier of the first terminal in the first request response message and a terminal identifier of the first terminal in the first request message; The first terminal determines that the second terminal supports a first service based on a terminal identifier of the second terminal in the first request response message and a terminal identifier of the second terminal in the first request message; The first terminal determines that a second terminal supports a first service based on the second traffic information in the first request response message and the first traffic information in the first request message; The first terminal determines that the second terminal supports a first service based on reference signal information of the second terminal in the first request response message and reference signal information of the first terminal in the first request message; The first terminal determines that the second terminal supports a first service based on algorithm information of the second terminal in the first request response message and algorithm information of the first terminal in the first request message; The first terminal determines that the second terminal supports the first service based on the measurement request information of the second terminal in the first request response message and the measurement request information of the first terminal in the first request message.

[0142] Optionally, when the first terminal determines that the second terminal supports the first service based on the second instruction information and the first instruction information, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the second instruction information and the first instruction information match.

[0143] Optionally, when the first terminal determines that the second terminal supports the first service based on the terminal identifier of the first terminal in the first request response message and the terminal identifier of the first terminal in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the terminal identifier of the first terminal in the first request response message matches the terminal identifier of the first terminal in the first request message.

[0144] Optionally, when the first terminal determines that the second terminal supports the first service based on the terminal identifier of the second terminal in the first request response message and the terminal identifier of the second terminal in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the terminal identifier of the second terminal in the first request response message matches the terminal identifier of the second terminal in the first request message.

[0145] Optionally, when the first terminal determines that the second terminal supports the first service based on the second traffic information in the first request response message and the first traffic information in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the second traffic information in the first request response message and the first traffic information in the first request message match.

[0146] Optionally, when the first terminal determines that the second terminal supports the first service based on the reference signal information of the second terminal in the first request response message and the reference signal information of the first terminal in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the reference signal information of the second terminal in the first request response message matches the reference signal information of the first terminal in the first request message.

[0147] Optionally, when the first terminal determines that the second terminal supports the first service based on the algorithm information of the second terminal in the first request response message and the algorithm information of the first terminal in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the algorithm information of the second terminal in the first request response message and the algorithm information of the first terminal in the first request message match.

[0148] Optionally, when the first terminal determines that the second terminal supports the first service based on the measurement request information of the second terminal in the first request response message and the measurement request information of the first terminal in the first request message, the first terminal may determine that the second terminal supports the first service if the first terminal confirms that the measurement request information of the second terminal in the first request response message and the measurement request information of the first terminal in the first request message match.

[0149] Optionally, matching may be the same or similar, and similar may mean that the corresponding values ​​belong to the same interval, or that the substantial meaning of the content they point to is the same.

[0150] Optionally, a match between the second instruction information and the first instruction information is confirmed by the first terminal.

[0151] Optionally, the second terminal may determine that the second terminal supports the first service if the first terminal confirms that the terminal identifier of the first terminal in the first request response message is the same as the terminal identifier of the first terminal in the first request message.

[0152] Optionally, if the first terminal confirms that the terminal identifier of the second terminal in the first request response message is the same as the terminal identifier of the second terminal in the first request message, it can be determined that the second terminal supports the first service.

[0153] Optionally, if the first terminal confirms that the second traffic information in the first request response message and the first traffic information in the first request message are the same, the second terminal may determine that it supports the first service.

[0154] Optionally, if the first terminal confirms that the reference signal information of the second terminal in the first request response message is the same as the reference signal information of the first terminal in the first request message, the second terminal may determine that it supports the first service.

[0155] Optionally, if the first terminal confirms that the algorithm information of the second terminal in the first request response message is the same as the algorithm information of the first terminal in the first request message, it can be determined that the second terminal supports the first service.

[0156] Optionally, the second terminal may determine that it supports the first service if the first terminal confirms that the measurement request information of the second terminal in the first request response message is the same as the measurement request information of the first terminal in the first request message.

[0157] Optionally, the first auxiliary information comprises: Capability information of the first terminal, Location information of the first device; Address information of the first terminal; Security information for the first device, Further comprising at least one item of measurement information of the first terminal; The second auxiliary information is Capability information of the second device, Location information of the second device; Address information of the second terminal, Security information for the second device, It further includes at least one item of measurement information of the second terminal.

[0158] Optionally, the first auxiliary information further includes any one or more of the following items (r1)-(r5):

[0159] (r1) Capability information of the first terminal.

[0160] In one embodiment, the capability information of the first terminal indicates that the first terminal has a capability to support a first service, and the capability information includes a capability to support distance measurement and / or calculation, a capability to support direction measurement and / or calculation, a capability to support high-precision distance measurement and / or calculation, a capability to support high-precision direction measurement and / or calculation, and a capability to support calculation of the first service.

[0161] (r2)Location information of the first device.

[0162] For example, the absolute location information of the first terminal is, for example, TA, registration area RA, cell ID, longitude and latitude, altitude above sea level, horizontal direction, and elevation direction.

[0163] For example, it is relative position information of the first terminal, for example, the relative angle (including the horizontal angle and the elevation angle) and the relative distance of the first terminal to the auxiliary node.

[0164] It should be explained that the auxiliary node is another communication device other than the first terminal and the second terminal.

[0165] For example, the absolute position information may be a public reference system known to the first terminal and the second terminal, such as a third terminal other than the first terminal and the second terminal, or a public infrastructure such as a Road Side Unit or a street lamp.

[0166] (r3) Address information of the first terminal.

[0167] For example, the IPv4 address of the first terminal, the IPv6 address of the first terminal, the port number of the first terminal, the FQDN of the first terminal, etc.

[0168] (r4)Security information for the first terminal.

[0169] For example, a cryptographic key of the first terminal and / or a security parameter of the first terminal.

[0170] (r5) Measurement information of the first terminal.

[0171] Here, the measurement information of the first terminal represents an observation result for a specific reference signal, such as a signal strength, a value of a certain measurement quantity calculated from a measurement signal, etc.

[0172] Optionally, the second auxiliary information further includes any one or more of the following (s1)-(s5):

[0173] (s1) Capability information of the second terminal.

[0174] In one embodiment, the capability information of the second terminal indicates that the second terminal has a capability to support a first service, and the capability information includes a capability to support distance measurement and / or calculation, a capability to support direction measurement and / or calculation, a capability to support high-precision distance measurement and / or calculation, a capability to support high-precision direction measurement and / or calculation, and a capability to support calculation of the first service.

[0175] (s2) Location information of the second device.

[0176] For example, the absolute location information of the second terminal is, for example, TA, registration area RA, cell ID, longitude and latitude, altitude above sea level, horizontal direction, and elevation direction.

[0177] For example, it is relative position information of the second terminal, for example, the relative angle (including the horizontal angle and the elevation angle) and the relative distance of the second terminal to the auxiliary node.

[0178] It should be explained that the auxiliary node is another communication device other than the first terminal and the second terminal.

[0179] For example, the absolute position information may be a public reference system known to the first terminal and the second terminal, such as a third terminal other than the first terminal and the second terminal, or a public infrastructure such as a Road Side Unit or a street lamp.

[0180] (s3) Address information of the second terminal.

[0181] For example, the IPv4 address of the second terminal, the IPv6 address of the second terminal, the port number of the second terminal, the fully qualified domain name (FQDN) of the second terminal, etc.

[0182] (s4) Security information of the second device.

[0183] For example, an encryption key of the second terminal and / or a security parameter of the second terminal.

[0184] (s5) Measurement information of the second terminal.

[0185] Here, the measurement information of the second terminal represents an observation result for a specific reference signal, such as a signal strength, a value of a certain measurement quantity calculated from a measurement signal, etc.

[0186] Optionally, the first configuration information is: The validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of a first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The at least one second permission indication information for permitting the first terminal to determine the reference signal result is included.

[0187] Optionally, the first network side device may pre-configure parameters or policies related to the first service for the first terminal (which may be referred to as first configuration information).

[0188] The first configuration information may include any one or more of the following items (t1) to (t12).

[0189] (t1) The validity time of the first configuration information.

[0190] Optionally, the validity time represents a validity time of the first configuration information.

[0191] Optionally, when the validity period expires, the first configuration information becomes invalid.

[0192] (t2) First authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal receives service from the radio access network.

[0193] Optionally, the first permission information of the first terminal may indicate whether or not the first terminal is authorized to use a discovery service related to the first service when served by the radio access network RAN, and whether or not the first terminal is authorized to use the discovery service related to the above-mentioned first service may include any one of the following items (t21)-(t22).

[0194] (t21) The first terminal is permitted to use a discovery service related to the first service using model B, where model B represents a discovery scheme in which the second terminal transmits a first request response message based on the first request message.

[0195] (t22) The first terminal is permitted to use a discovery service related to the first service using model A, where model A represents a discovery scheme in which the second terminal does not send a first request response message.

[0196] (t3) A first permission list of the first terminal for indicating a PLMN list on which discovery is to be performed when the first terminal receives service from the radio access network.

[0197] Optionally, the first allowed list of the first terminal may be a list of PLMNs that are allowed to use the first service when the service is provided from the RAN, and the list of PLMNs that are allowed to use the first service includes at least one of the following (t31)-(t33):

[0198] (t31) a list of PLMNs that are permitted for the first terminal to discover using model A announcing, where the Public Land Mobile Network (PLMN) list includes at least one PLMN ID.

[0199] (t32) a list of PLMNs that are permitted for the first terminal to discover using model A monitoring, where the PLMN list includes at least one PLMN ID.

[0200] (t33) A list of PLMNs that are permitted for the first terminal to discover using a model B discoverer operation, where the PLMN list includes at least one PLMN ID.

[0201] (t4) Second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network.

[0202] Optionally, the second authorization information of the first terminal may indicate whether or not the first terminal is authorized to use a discovery service related to the first service when no service is provided from the radio access network, and whether or not the first terminal is authorized to use the discovery service related to the first service described above may include at least one of the following (t41)-(t42):

[0203] (t41) The first terminal is permitted to use a discovery service related to the first service using model A.

[0204] (t42) The first terminal is permitted to use a discovery service related to the first service using model B.

[0205] (t5) first traffic information for indicating the requested traffic information to the first terminal;

[0206] (t6) A terminal identifier of the first terminal including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal. For example, the identifier may be one or more of the following: a Subscription Concealed Identifier (SUCI) of the first terminal, a Globally Unique Temporary Identifier (GUTI) of the first terminal, an International Mobile Subscriber Identity (IMSI) of the first terminal, a Permanent Equipment Identifier (PEI) of the first terminal, an International Mobile Equipment Identity number (IMEI) of the first terminal, a Subscription Permanent Identifier (SUPI) of the first terminal, a Temporary Mobile Subscription Identifier (TMSI) of the first terminal, a Generic Public Subscription Identifier (GPSI) of the first terminal, and a 5G S-Temporary Mobile Subscription Identifier (5G-S-TMSI) of the first terminal.

[0207] (t7) security information of the first terminal representing security parameters related to the first service;

[0208] For example, a cryptographic key of the first terminal and / or a security parameter of the first terminal.

[0209] (t8) Algorithm information of the first terminal for indicating an algorithm required to use the first service.

[0210] Optionally, it should be explained that the algorithm information of the first terminal is algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm accuracy, etc., and the algorithm information may also be referred to as method information.

[0211] (t9) Reference signal information of the first terminal for indicating a reference signal required to use the first service.

[0212] Optionally, the reference signal information of the first terminal may represent information of a reference signal used by the first terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0213] (t10) Measurement request information of the first terminal.

[0214] Optionally, the measurement request information of the first terminal includes measurement accuracy and / or QoS information.

[0215] (t11) First permission indication information for permitting the first terminal to transmit a reference signal.

[0216] (t12) Second permission indication information for permitting the first terminal to determine the reference signal result.

[0217] Optionally, the method further comprises: The method further includes a step of the first terminal determining a reference signal transmission scheme based on the first permission indication information.

[0218] Selectively, the first terminal selects, as a reference signal transmission method, based on the first permission indication information, transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; Any one or more of the event-triggered transmission of the reference signal may be determined.

[0219] Optionally, the method further comprises: The method further includes the step of: the first terminal determining a result determination manner based on the second permission indication information.

[0220] Optionally, the first terminal may select, as a result determination method, the second permission instruction information: determining the first result by the first terminal; determining the first result by a second terminal; Any one or more of the determinations of said first outcome by the first terminal and the second terminal may be determined.

[0221] Optionally, after the step of the first terminal sending a first request message to a second terminal, the method further comprises: The method further includes the step of the first terminal sending a second request message to request establishment of a PC5 connection with the second terminal.

[0222] Optionally, after a first terminal sends a first request message to a second terminal, the first terminal may send a second request message to request establishment of a PC5 connection with the second terminal.

[0223] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0224] FIG. 5 is a flow chart 4 of a terminal discovery method provided in an embodiment of the present application; A step 500 in which a second terminal obtains second configuration information related to a first service, the first service being a terminal discovery related service; The method includes receiving 510, by the second terminal, a first request message sent from a first terminal, the first request message being used for discovery of a second terminal supporting the first service.

[0225] Optionally, the first service may be for the first terminal to attempt to obtain relative information (e.g., relative position) between the first terminal and other terminals, or may be absolute information (e.g., geographical location, velocity), or may be for the first terminal to attempt to obtain relative information or absolute information between the first terminal and other network elements (which may be understood as network side equipment, base station, RSU, etc.).

[0226] Optionally, the second terminal can obtain second configuration information related to the first service, and the second configuration information is used for the second terminal to configure information required for use when the second terminal executes the first service.

[0227] Optionally, when the first terminal needs to discover a second terminal that supports the first service, the first terminal can send a first request message to the second terminal, and when the second terminal receives the first request message, the second terminal can know that the first terminal is attempting to discover a terminal that supports the first service. In this way, it is possible for a terminal that supports the first service to discover another terminal that supports the first service.

[0228] Optionally, the second network side does not have to transmit the second configuration information to the second terminal every time the first service is executed. The timing of transmitting the second configuration information from the second network side to the second terminal is not limited by the embodiment of the present application.

[0229] In one embodiment, when the second terminal is registered on a second network side, the second network side transmits the second configuration information to the second terminal.

[0230] In another embodiment, the second terminal may request to obtain or update the second configuration information at any time.

[0231] In another embodiment, the second configuration information is configured in the second terminal in a pre-configured manner.

[0232] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0233] Optionally, after the step of the second terminal receiving a first request message transmitted from the first terminal, the method further comprises: The method further includes the step of the second terminal sending a third request message to request establishment of a PC5 connection with the first terminal.

[0234] Optionally, after receiving the first request message sent from the first terminal, the second terminal may send a third request message to request establishment of a PC5 connection with the first terminal.

[0235] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0236] Optionally, the first request message may include any one or more of the following: (a) a first request message for a first request, the first request message for a second request, and the second request message for a second request.

[0237] (a) first indication information for indicating that the first request message is used for the first service;

[0238] In one embodiment, the first indication information may have a length of 1 bit, where bit 0 indicates that the first indication information indicates that the first request message is not used for a first service, while bit 1 indicates that the first indication information indicates that the first request message is used for a first service.

[0239] (b) third instruction information for instructing the second terminal to transmit second auxiliary information for assisting the first terminal in discovering a second terminal supporting the first service;

[0240] In one embodiment, the first terminal transmits third instruction information via a first request message to instruct the second terminal to transmit second auxiliary information, and the second terminal can transmit the second auxiliary information to the first terminal after receiving the third instruction information, and can transmit the second auxiliary information to the first terminal via a first request response message, and the first terminal can determine whether the second terminal supports the first service based on the second auxiliary information after receiving the second auxiliary information.

[0241] (c) a first message type for indicating a message type of the first request message.

[0242] In one embodiment, the message types of the different messages may include a first service discovery request message, a first service discovery request response message.

[0243] In one embodiment, the first message type is used to directly indicate that the message type of the existing message is the first service discovery request message.

[0244] (d) a terminal identifier of the first terminal, including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal.

[0245] Here, the logical identifier refers to a logical identifier that is assigned by a network or an application server and can uniquely identify one terminal, such as a combination of specific strings, a layer-2 identifier (layer-2 ID), a terminal identifier related to traffic information, etc., which is managed by and / or assigned by an application layer.

[0246] (e) a terminal identifier of the second terminal, including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal.

[0247] (f) first traffic information for indicating requested traffic information to the first terminal;

[0248] (g) first auxiliary information for assisting the first terminal in discovering a second terminal that supports the first service;

[0249] (h) Reference signal transmission method.

[0250] (i) Result determination method.

[0251] In one embodiment, the first request message may be a PROSE PC5 DISCOVERY message in an existing mechanism.

[0252] In one embodiment, the first request message may be a RANGING PC5 DISCOVERY message, i.e., a new message separate from the existing message.

[0253] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0254] Optionally, the first auxiliary information may include reference signal information of the first terminal.

[0255] Optionally, the first auxiliary information may include algorithm information of the first terminal.

[0256] Optionally, the first auxiliary information may include measurement request information of the first terminal.

[0257] Optionally, the first auxiliary information may include reference signal information of the first terminal and algorithm information of the first terminal.

[0258] Optionally, the first auxiliary information may include reference signal information of the first terminal and measurement request information of the first terminal.

[0259] Optionally, the first auxiliary information may include algorithm information of the first terminal and measurement request information of the first terminal.

[0260] Optionally, the first terminal or the second terminal may use all or a part of the first auxiliary information when discovering a terminal supporting the first service based on the first auxiliary information, regardless of whether the first auxiliary information includes one item or multiple items. Optionally, the algorithm information of the first terminal is algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm precision, etc.

[0261] Optionally, the reference signal information of the first terminal may represent information of a reference signal used by the first terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0262] Optionally, the measurement request information of the first terminal includes measurement accuracy and / or QoS information.

[0263] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0264] Optionally, the first traffic information is: a traffic code corresponding to the first terminal used for at least one of identifying that the first terminal needs to use the first service, identifying that the first terminal is authorized to use the first service, and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the first terminal indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the first terminal.

[0265] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0266] Optionally, the first terminal can transmit address information of the first terminal to the second terminal.

[0267] Optionally, the first terminal can transmit to the second terminal address information of the second terminal.

[0268] Optionally, the first terminal can transmit to the second terminal the address information of the first terminal and the address information of the second terminal.

[0269] Optionally, the address information of the first terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0270] Optionally, the address information of the second terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0271] Optionally, the address information of the first terminal and the address information of the second terminal may be included in the first request message, or may be outside the first request message and sent along with the first request message.

[0272] Optionally, after the first terminal sends the first request message to the second terminal, if the second terminal determines based on the first request message that the first terminal and the second terminal both support the first service, the second terminal can directly start a related flow for executing the first service. In this way, after the first terminal sends the first request message to the second terminal and if the second terminal starts a flow related to the first service, the first terminal can transition to a flow for executing the first service together with the second terminal.

[0273] Optionally, the second configuration information comprises: The validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission instruction information for permitting the second terminal to transmit a reference signal; and at least one fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0274] Optionally, the second network side device may pre-configure parameters or policies related to the first service for the second terminal (which may be referred to as second configuration information).

[0275] The second configuration information may include any one or more of the following (u1)-(u12).

[0276] (u1) The validity period of the second configuration information.

[0277] Optionally, the validity time represents a validity time of the second configuration information.

[0278] Optionally, when the validity period expires, the second configuration information becomes invalid.

[0279] (u2) First authorization information of the second terminal for indicating a type of discovery method that is permitted when the second terminal receives service from the wireless access network.

[0280] Optionally, the first permission information of the second terminal may indicate whether or not the second terminal is authorized to use a discovery service related to the first service when served by the radio access network RAN, and whether or not the second terminal is authorized to use the discovery service related to the above-mentioned first service may include any one of the following (u21)-(u22).

[0281] (u21) The second terminal is permitted to use a discovery service related to the first service using model B. Here, model B represents a discovery scheme in which the second terminal transmits a first request response message based on the first request message.

[0282] (u22) The second terminal is permitted to use a discovery service related to the first service using model A, where model A represents a discovery scheme in which the second terminal determines, based on the first request message, that both the first terminal and the second terminal support the first service.

[0283] (u3) A first permission list of the second terminal for indicating a PLMN list on which discovery is to be performed when the second terminal receives service from the radio access network.

[0284] Optionally, the first allowed list of the second terminal may be a PLMN list that allows the use of the first service when the service is provided from the RAN, and the PLMN list that allows the use of the first service includes at least one of the following (u31)-(u33).

[0285] (u31) A list of PLMNs that are permitted for the second terminal to discover using model A announcing, where the PLMN list includes at least one PLMN ID.

[0286] (u32) A list of PLMNs that are permitted for the second terminal to discover using model A monitoring, where the PLMN list includes at least one PLMN ID.

[0287] (u33) A list of PLMNs that are permitted for the second terminal to discover using a model B discoverer operation, where the PLMN list includes at least one PLMN ID.

[0288] (u4) Second authorization information of the second terminal for indicating the type of discovery method that is permitted when the second terminal is not served by the radio access network.

[0289] Optionally, the second permission information of the second terminal may indicate whether or not the second terminal is authorized to use a discovery service related to the first service when no service is provided from the radio access network, and whether or not the second terminal is authorized to use the discovery service related to the first service described above may include at least one of the following (u41)-(u42):

[0290] (u41) It is permitted to use a discovery service related to the first service using model A.

[0291] (u42) Using model B, it is permitted to use discovery services related to the first service.

[0292] (u5) Second traffic information for indicating traffic information provided by the second terminal.

[0293] (u6) A terminal identifier of the second terminal including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal. For example, the terminal identifier is one or more of the following: SUCI of the second terminal, GUTI of the second terminal, IMSI of the second terminal, PEI of the second terminal, IMEI of the second terminal, SUPI of the second terminal, TMSI of the second terminal, GPSI of the second terminal, and 5G-S-TMSI of the second terminal.

[0294] (u7) security information of the second terminal representing security parameters related to the first service;

[0295] For example, a cryptographic key of the second terminal and / or a security parameter of the first terminal.

[0296] (u8) Algorithm information of a second terminal for indicating an algorithm required to use the first service.

[0297] Optionally, the algorithm information of the second terminal is algorithm information used by the second terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm precision, and the like.

[0298] (u9) Reference signal information of a second terminal for indicating a reference signal required to use the first service.

[0299] Optionally, the reference signal information of the second terminal may represent information of a reference signal used by the second terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0300] (u10)Measurement request information for the second terminal.

[0301] Optionally, the measurement request information of the second terminal includes measurement accuracy and / or QoS information.

[0302] (u11) Third permission instruction information for permitting the second terminal to transmit a reference signal.

[0303] (u12) Fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0304] Optionally, the method further comprises: The method further includes a step of the second terminal determining a reference signal transmission scheme based on the third permission indication information.

[0305] Selectively, the second terminal selects, as a reference signal transmission method, based on the third permission indication information: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; Any one or more of the event-triggered transmission of the reference signal may be determined.

[0306] Optionally, the method further comprises: The method further includes the step of: the second terminal determining a result determination manner based on the fourth permission indication information.

[0307] Optionally, the result determination manner determined by the second terminal based on the fourth permission indication information is: determining the first result by the first terminal; determining the first result by a second terminal; and at least one of determining said first outcome by a first terminal and a second terminal.

[0308] In some embodiments, the reference signal transmission method and the result determination method are correlated. For example, when the first terminal sets "transmission of a reference signal by the first terminal" as the reference signal transmission method in the first request message, the second terminal can infer that the "result determination method" of the first service is "determination of the first result by the second terminal" after receiving the first request message.

[0309] Optionally, the method further comprises: The method further includes the step of: the second terminal performing a second operation based on the first request message, the second operation including: The second terminal determines, based on the second traffic information in the second configuration information and the first traffic information in the first request message, that the second terminal provides a first service; The second terminal determines that the second terminal provides a first service based on reference signal information of the second terminal in the second configuration information and reference signal information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on algorithm information of the second terminal in the second configuration information and algorithm information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on the measurement request information of the second terminal in the second configuration information and the measurement request information of the first terminal in the first request message; The second terminal determines, based on third permission indication information in the second configuration information and a reference signal transmission manner in the first request message, that the second terminal provides a first service; The second terminal determines, based on fourth permission indication information in the second configuration information and a result determination method in the first request message, that the second terminal will provide the first service.

[0310] Optionally, whether the first terminal and the second terminal can execute the first service can be determined by the second terminal based on the first request message, in which case, after receiving the first request message, the second terminal can determine that it can execute the first service together with the first terminal based on the first request message, and thus can directly start the flow of executing the first service.

[0311] Optionally, the second terminal may perform a second operation based on the first request message when determining the first result, the second operation comprising: The second terminal determines, based on the second traffic information in the second configuration information and the first traffic information in the first request message, that the second terminal provides a first service; The second terminal determines that the second terminal provides a first service based on reference signal information of the second terminal in the second configuration information and reference signal information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on algorithm information of the second terminal in the second configuration information and algorithm information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on the measurement request information of the second terminal in the second configuration information and the measurement request information of the first terminal in the first request message; The second terminal determines, based on third permission indication information in the second configuration information and a reference signal transmission manner in the first request message, that the second terminal provides a first service; The second terminal determines, based on fourth permission indication information in the second configuration information and a result determination method in the first request message, that the second terminal will provide the first service.

[0312] Here, when the second terminal determines that the first terminal and the second terminal can execute the first service based on the second traffic information in the second configuration information and the first traffic information in the first request message, the second terminal may determine that the first terminal and the second terminal can execute the first service if the second terminal determines that the second traffic information in the second configuration information and the first traffic information in the first request message match.

[0313] Here, when the second terminal determines that the first terminal and the second terminal can perform the first service based on the reference signal information of the second terminal in the second configuration information and the reference signal information of the first terminal in the first request message, if the second terminal determines that the reference signal information of the second terminal in the second configuration information and the reference signal information of the first terminal in the first request message match, the second terminal may determine that the first terminal and the second terminal can perform the first service.

[0314] Here, when the second terminal determines that the first terminal and the second terminal can execute the first service based on the algorithm information of the second terminal in the second configuration information and the algorithm information of the first terminal in the first request message, if the second terminal determines that the algorithm information of the second terminal in the second configuration information and the algorithm information of the first terminal in the first request message match, the second terminal may determine that the first terminal and the second terminal can execute the first service.

[0315] Here, when the second terminal determines that the first terminal and the second terminal can perform the first service based on the measurement request information of the second terminal in the second configuration information and the measurement request information of the first terminal in the first request message, if the second terminal determines that the measurement request information of the second terminal in the second configuration information and the measurement request information of the first terminal in the first request message match, the second terminal may determine that the first terminal and the second terminal can perform the first service.

[0316] Here, when the second terminal determines that the first terminal and the second terminal can perform the first service based on the third permission instruction information in the second configuration information and the reference signal transmission method in the first request message, if the second terminal determines that the third permission instruction information in the second configuration information and the reference signal transmission method in the first request message match, the second terminal may determine that the first terminal and the second terminal can perform the first service.

[0317] Here, when the second terminal determines that the first terminal and the second terminal can execute the first service based on the fourth permission instruction information in the second configuration information and the result determination method in the first request message, if the second terminal determines that the fourth permission instruction information in the second configuration information and the result determination method in the first request message match, the second terminal may determine that the first terminal and the second terminal can execute the first service.

[0318] Optionally, matching may be the same or similar, and similar may mean that the corresponding values ​​belong to the same interval, or that the substantial meaning of the content they point to is the same.

[0319] Optionally, the method further comprises: The method further includes the step of: the second terminal transmitting, to the first terminal, a first request response message to indicate that the second terminal has received the first request message of the first terminal.

[0320] Optionally, the first terminal can determine whether the second terminal supports the first service, in which case the first terminal can determine whether the second terminal supports the first service based on a first request response message sent from the second terminal, and after receiving the first request message, the second terminal only determines that the message type of the first request message is a first service discovery request message, and directly sends a first request message response.

[0321] Optionally, the first terminal may determine whether the second terminal supports the first service, and the second terminal may determine based on the first request message that the first terminal and the second terminal can perform the first service, in which case, after receiving the first request message, if the second terminal determines based on the first request message that the first terminal and the second terminal can perform the first service, it may send a first request message response, and after receiving the first request message response, the first terminal may determine based on the first request message response that the second terminal also supports the first service.

[0322] Here, when the second terminal determines that the first terminal and the second terminal all support the first service, the determination can be made based on at least one of the first request message, the application layer instruction, the network side instruction, and the pre-configuration information.

[0323] Optionally, the step of the second terminal sending a first request response message to the first terminal comprises: The method includes a step of the second terminal transmitting second auxiliary information in the first request response message based on third indication information.

[0324] Optionally, when the first request message includes third indication information, the second terminal can send second auxiliary information based on the third indication information.

[0325] Optionally, the second auxiliary information may be an item in the first request response message.

[0326] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information of the second terminal for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0327] Optionally, the first request response message may include any one or more of the following (j)-(q):

[0328] (j) second instruction information for indicating that the first request response message is used for the first service.

[0329] (k) a second message type for indicating a message type of the first request response message.

[0330] In one embodiment, the message types of the different messages may include a first service discovery request message, a first service discovery request response message.

[0331] In one embodiment, the second message type is used to directly indicate that the type of message present is a first service discovery request response message.

[0332] (l) second traffic information for indicating traffic information provided by the second terminal;

[0333] (m) a terminal identifier of the first terminal including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal.

[0334] (n) a terminal identifier of the second terminal including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal.

[0335] (o) second auxiliary information for assisting the first terminal in discovering a second terminal that supports the first service;

[0336] (p) Reference signal transmission method.

[0337] (q) Result determination method.

[0338] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0339] Optionally, the second terminal can transmit to the first terminal address information of the first terminal.

[0340] Optionally, the second terminal can transmit address information of the second terminal to the first terminal.

[0341] Optionally, the second terminal can transmit to the first terminal address information of the first terminal and address information of the second terminal.

[0342] Optionally, the address information of the first terminal may be included in the first request response message, or may be outside the first request response message and sent along with the first request response message.

[0343] Optionally, the address information of the second terminal may be included in the first request response message or may be outside the first request response message and sent along with the first request response message.

[0344] Optionally, the address information of the first terminal and the address information of the second terminal may be included in the first request response message, or may be outside the first request response message and sent along with the first request response message.

[0345] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0346] Optionally, the second traffic information is a traffic code corresponding to the second terminal for use in at least one of: identifying that the second terminal needs to use the first service; identifying that the second terminal is authorized to use the first service; and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the second terminal for indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the second terminal.

[0347] In one embodiment, the first request response message includes the second traffic information, which may be understood to indicate that the second terminal can provide the first service related to the second traffic information. For example, when the second traffic information is a traffic identifier, it may be understood that the second terminal can provide the first service related to a traffic identified by the traffic identifier.

[0348] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0349] Optionally, the second auxiliary information may include reference signal information of the second terminal.

[0350] Optionally, the second auxiliary information may include algorithm information of the second terminal.

[0351] Optionally, the second auxiliary information may include measurement request information of the second terminal.

[0352] Optionally, the second auxiliary information may include reference signal information of the second terminal and algorithm information of the second terminal.

[0353] Optionally, the second auxiliary information may include reference signal information of the second terminal and measurement request information of the second terminal.

[0354] Optionally, the second auxiliary information may include algorithm information of the second terminal and measurement request information of the second terminal.

[0355] Optionally, whether the second auxiliary information contains one item or multiple items, the first terminal or the second terminal can use all or a part of the second auxiliary information when discovering a terminal supporting the first service based on the second auxiliary information.

[0356] Optionally, the algorithm information of the second terminal is algorithm information used by the second terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm precision, and the like.

[0357] Optionally, the reference signal information of the second terminal may represent information of a reference signal used by the second terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0358] Optionally, the measurement request information of the second terminal includes measurement accuracy and / or QoS information.

[0359] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0360] Optionally, the reference signal transmission scheme is transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The present invention relates to a method for transmitting a reference signal using an event trigger.

[0361] Optionally, the outcome determination method comprises: The method includes at least one of determining the first outcome by a first terminal, determining the first outcome by a second terminal, and determining the first outcome by both the first terminal and the second terminal.

[0362] The result determination method can be selected as follows: determining the first result by the first terminal; determining the first result by a second terminal; The method includes any one or more of determining the first result by the first terminal and the second terminal.

[0363] In some embodiments, the reference signal transmission method and the result determination method are correlated. For example, when the first terminal sets "transmission of a reference signal by the first terminal" as the reference signal transmission method in the first request message, the second terminal can infer that the "result determination method" of the first service is "determination of the first result by the second terminal" after receiving the first request message.

[0364] Optionally, the first result may be a result obtained by performing a first service, for example a distance between two or more UEs and / or a direction and / or a relative position between one UE (i.e., a target UE) and another UE (i.e., a reference UE), and optionally the first result may be a result corresponding to a first service related to a second terminal obtained by a first terminal, where the first result is: The information may include at least one of absolute position information of the second terminal, relative position information between the second terminal and the first terminal, accuracy information, and a measurement result of the second positioning reference signal.

[0365] Specifically, the absolute location information of the second terminal is, for example, the TA, the registration area RA, the cell ID, the longitude and latitude, the altitude above sea level, the horizontal angle or the elevation angle, and the like.

[0366] The relative position information is, for example, the relative angle or the relative distance of the second terminal to the first terminal.

[0367] The accuracy information represents accuracy information of the first result, and may include at least one of result dimension information, measurement accuracy, and error information, where the result dimension information is, for example, angles, meters, centimeters, etc., the measurement accuracy is, for example, high accuracy, very high accuracy, and low accuracy, and the error information includes error accuracy information and error dimension information, where the error accuracy information is, for example, high error, low error, and very low error, and the error dimension information is, for example, angles, meters, centimeters, etc.

[0368] The measurement result represents a measurement result for the second positioning reference signal, for example, a signal strength, a value of a certain measurement quantity calculated using the second positioning reference signal, etc.

[0369] Optionally, the step of the second terminal sending a first request response message to the first terminal comprises: The method includes a step of the second terminal sending a first request response message to the first terminal based on first information including at least one of a first request message, application layer instruction information, network side instruction information, and pre-configuration information.

[0370] Optionally, after receiving the first request message, if the second terminal determines based on the first request message that the first terminal supports the first service and the second terminal also determines that the second terminal supports the first service, it can send a first request message response, and after receiving the first request message response, the first terminal can determine based on the first request message response that the second terminal also supports the first service.

[0371] Here, when the second terminal determines that the first terminal and the second terminal all support the first service, the decision can be made based on at least one of the first request message, the application layer instruction information, the network side instruction information, and the pre-configuration information.

[0372] Optionally, when the first information includes the application layer indication information, the second terminal transmits a first request response message to the first terminal based on the first information, The second terminal transmits a first request response message to the first terminal according to the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer indication information; The second terminal sends a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the application layer indication information; the second terminal sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the application layer indication information; The second terminal transmits a first request response message to the first terminal based on the first terminal identifier in the first request message and a terminal identifier included in the application layer indication information.

[0373] Optionally, the application layer indication information may include: Reference signal transmission method, result determination method, Traffic information, It may include at least one of the terminal identifiers.

[0374] Optionally, when the second terminal transmits a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer instruction information, the second terminal may be configured to transmit the first request response message to the first terminal when the second terminal determines that the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer instruction information match.

[0375] Optionally, when the second terminal sends a first request response message to the first terminal based on the result determination method in the first request message and the result determination method included in the application layer instruction information, the second terminal may be configured to send the first request response message to the first terminal if the second terminal can determine that the result determination method in the first request message and the result determination method included in the application layer instruction information match.

[0376] Optionally, when the second terminal sends a first request response message to the first terminal based on the first traffic information in the first request message and the traffic information included in the application layer indication information, the second terminal may be configured to send the first request response message to the first terminal when the second terminal determines that the first traffic information in the first request message and the traffic information included in the application layer indication information match.

[0377] Optionally, when the second terminal sends a first request response message to the first terminal based on the first terminal identifier in the first request message and the terminal identifier included in the application layer instruction information, the second terminal may be configured to send the first request response message to the first terminal when the second terminal determines that the first terminal identifier in the first request message and the terminal identifier included in the application layer instruction information match.

[0378] Optionally, matching may be the same or similar, and similar may mean that the corresponding values ​​belong to the same interval, or that the substantial meaning of the content they point to is the same.

[0379] Optionally, when the first information includes the pre-configuration information, the second terminal transmits a first request response message to the first terminal based on the first information, the second terminal transmitting a first request response message to the first terminal according to the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the pre-configuration information; the second terminal sending a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the pre-configuration information; the second terminal transmitting a first request response message to the first terminal based on a terminal identifier of the first terminal in the first request message and a terminal identifier of the first terminal included in the pre-configuration information; the second terminal sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the pre-configuration information; The second terminal transmits a first request response message to the first terminal based on the address information of the second terminal in the first request message and the address information of the second terminal included in the pre-configuration information; and the second terminal transmitting a first request response message to the first terminal based on a terminal identifier of the second terminal in the first request message and a terminal identifier of the second terminal included in the pre-configuration information.

[0380] The second terminal transmits a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the pre-configuration information.

[0381] When the second terminal transmits a first request response message to the first terminal based on the result determination method in the first request message and the result determination method included in the pre-arrangement information, the second terminal may be configured to transmit the first request response message to the first terminal when the second terminal determines that the result determination method in the first request message matches the result determination method included in the pre-arrangement information.

[0382] When the second terminal transmits a first request response message to the first terminal based on the terminal identifier of the first terminal in the first request message and the terminal identifier of the first terminal included in the pre-location information, the second terminal may be configured to transmit the first request response message to the first terminal when it determines that the terminal identifier of the first terminal in the first request message matches the terminal identifier of the first terminal included in the pre-location information.

[0383] When the second terminal transmits a first request response message to the first terminal based on the first traffic information in the first request message and the traffic information included in the pre-configuration information, the second terminal may transmit the first request response message to the first terminal when the second terminal determines that the first traffic information in the first request message and the traffic information included in the pre-configuration information match.

[0384] When the second terminal transmits a first request response message to the first terminal based on the address information of the second terminal in the first request message and the address information of the second terminal included in the pre-configuration information, the second terminal may transmit the first request response message to the first terminal when the second terminal determines that the address information of the second terminal in the first request message matches the address information of the second terminal included in the pre-configuration information.

[0385] When the second terminal transmits a first request response message to the first terminal based on the terminal identifier of the second terminal in the first request message and the terminal identifier of the second terminal included in the pre-location information, the second terminal may be configured to transmit the first request response message to the first terminal when the second terminal determines that the terminal identifier of the second terminal in the first request message matches the terminal identifier of the second terminal included in the pre-location information.

[0386] Optionally, preposition information is Reference signal transmission method, It may include at least one of the outcome determination methods.

[0387] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0388] FIG. 6 is a flow chart 5 of a terminal discovery method provided in an embodiment of the present application. As shown in FIG. 6, the method includes: The method includes step 600, in which a first network side transmits first configuration information to a first terminal, the first configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

[0389] Optionally, the first network side device may pre-configure parameters or policies related to the first service for the first terminal (which may be referred to as first configuration information).

[0390] Optionally, the first network side does not have to transmit the first configuration information to the first terminal every time the first service is executed. The timing of transmitting the first configuration information from the first network side to the first terminal is not limited to the embodiment of the present application.

[0391] In one embodiment, when the first terminal is registered on a first network side, the first network side sends the first configuration information to the first terminal.

[0392] In another embodiment, the first terminal may request to obtain or update the first configuration information at any time.

[0393] In another embodiment, the first configuration information is configured in the first terminal in a pre-configured manner.

[0394] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0395] Optionally, the first configuration information is: The validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of a first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The at least one second permission indication information for permitting the first terminal to determine the reference signal result is included.

[0396] The first configuration information may include any one or more of the following items (t1) to (t12).

[0397] (t1) The validity time of the first configuration information.

[0398] Optionally, the validity time represents a validity time of the first configuration information.

[0399] Optionally, when the validity period expires, the first configuration information becomes invalid.

[0400] (t2) First authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal receives service from the radio access network.

[0401] Optionally, the first permission information of the first terminal may indicate whether or not the first terminal is authorized to use a discovery service related to the first service when served by the radio access network RAN, and whether or not the first terminal is authorized to use the discovery service related to the above-mentioned first service may include any one of the following items (t21)-(t22).

[0402] (t21) The first terminal is permitted to use a discovery service related to the first service using model B, where model B represents a discovery scheme in which the second terminal transmits a first request response message based on the first request message.

[0403] (t22) The first terminal is permitted to use a discovery service related to the first service using model A, where model A represents a discovery scheme in which the second terminal determines, based on the first request message, that both the first terminal and the second terminal support the first service.

[0404] (t3) A first permission list of the first terminal for indicating a PLMN list on which discovery is to be performed when the first terminal receives service from the radio access network.

[0405] Optionally, the first allowed list may be a list of PLMNs that allow the use of the first service when the service is provided from the RAN, and the list of PLMNs that allow the use of the first service includes at least one of the following (t31)-(t33):

[0406] (t31) A list of PLMNs that are permitted for the first terminal to discover using model A announcing, where the PLMN list includes at least one PLMN ID.

[0407] (t32) a list of PLMNs that are permitted for the first terminal to discover using model A monitoring, where the PLMN list includes at least one PLMN ID.

[0408] (t33) A list of PLMNs that are permitted for the first terminal to discover using a model B discoverer operation, where the PLMN list includes at least one PLMN ID.

[0409] (t4) Second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network.

[0410] Optionally, the second authorization information of the first terminal may indicate whether or not the first terminal is authorized to use a discovery service related to the first service when no service is provided from the radio access network, and whether or not the first terminal is authorized to use the discovery service related to the first service described above may include at least one of the following (t41)-(t42):

[0411] (t41) Using model A, it is permitted to use a discovery service related to the first service.

[0412] (t42) Using model B, it is permitted to use a discovery service related to the first service.

[0413] (t5) first traffic information for indicating the requested traffic information to the first terminal;

[0414] (t6) A terminal identifier of the first terminal including at least one of an identity identifier of the first terminal, a device identifier of the first terminal, and a logical identifier of the first terminal. For example, the terminal identifier is one or more of the following: SUCI of the first terminal, GUTI of the first terminal, IMSI of the first terminal, PEI of the first terminal, IMEI of the first terminal, SUPI of the first terminal, TMSI of the first terminal, GPSI of the first terminal, and 5G-S-TMSI of the first terminal.

[0415] (t7) security information of the first terminal representing security parameters related to the first service;

[0416] For example, a cryptographic key of the first terminal and / or a security parameter of the first terminal.

[0417] (t8) Algorithm information of the first terminal for indicating an algorithm required to use the first service.

[0418] Optionally, it should be explained that the algorithm information of the first terminal is algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm accuracy, etc., and the algorithm information may also be referred to as method information.

[0419] (t9) Reference signal information of the first terminal for indicating a reference signal required to use the first service.

[0420] Optionally, the reference signal information of the first terminal may represent information of a reference signal used by the first terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0421] (t10) Measurement request information of the first terminal.

[0422] Optionally, the measurement request information of the first terminal includes measurement accuracy and / or QoS information.

[0423] (t11) First permission indication information for permitting the first terminal to transmit a reference signal.

[0424] (t12) Second permission indication information for permitting the first terminal to determine the reference signal result.

[0425] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0426] Optionally, the first traffic information is: a traffic code corresponding to the first terminal used for at least one of identifying that the first terminal needs to use the first service, identifying that the first terminal is authorized to use the first service, and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the first terminal indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the first terminal.

[0427] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0428] FIG. 7 is a flow chart 6 of a terminal discovery method provided in an embodiment of the present application. As shown in FIG. 7, the method includes: The method includes step 700 of a second network side sending second configuration information to a second terminal, the second configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

[0429] Optionally, the second network side device may pre-configure parameters or policies related to the first service for the second terminal (which may be referred to as second configuration information).

[0430] Optionally, the second network side does not have to transmit the second configuration information to the second terminal every time the first service is executed. The timing of transmitting the second configuration information from the second network side to the second terminal is not limited by the embodiment of the present application.

[0431] In one embodiment, when the second terminal is registered on a second network side, the second network side transmits the second configuration information to the second terminal.

[0432] In another embodiment, the second terminal may request to obtain or update the second configuration information at any time.

[0433] In another embodiment, the second configuration information is configured in the second terminal in a pre-configured manner.

[0434] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0435] Optionally, the second configuration information comprises: The validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by the radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission instruction information for permitting the second terminal to transmit a reference signal; and at least one fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0436] Optionally, the second configuration information may include any one or more of the following (u1)-(u12):

[0437] (u1) The validity period of the second configuration information.

[0438] Optionally, the validity time represents a validity time of the second configuration information.

[0439] Optionally, when the validity period expires, the second configuration information becomes invalid.

[0440] (u2) First authorization information of the second terminal for indicating a type of discovery method that is permitted when the second terminal receives service from the wireless access network.

[0441] Optionally, the first permission information of the second terminal may indicate whether or not the second terminal is authorized to use a discovery service related to the first service when served by the radio access network RAN, and whether or not the second terminal is authorized to use the discovery service related to the above-mentioned first service may include any one of the following (u21)-(u22).

[0442] (u21) The second terminal is permitted to use a discovery service related to the first service using model B, where model B represents a discovery scheme in which the second terminal transmits a first request response message based on the first request message.

[0443] (u22) The second terminal is permitted to use a discovery service related to the first service using model A, where model A represents a discovery scheme in which the second terminal determines, based on the first request message, that both the first terminal and the second terminal support the first service.

[0444] (u3) A first permission list of the second terminal for indicating a PLMN list on which discovery is to be performed when the second terminal receives service from the radio access network.

[0445] Optionally, the first allowed list of the second terminal may be a PLMN list that allows the use of the first service when the service is provided from the RAN, and the PLMN list that allows the use of the first service includes at least one of the following (u31)-(u33).

[0446] (u31) A list of PLMNs that are permitted for the second terminal to discover using model A announcing, where the PLMN list includes at least one PLMN ID.

[0447] (u32) A list of PLMNs that are permitted for the second terminal to discover using model A monitoring, where the PLMN list includes at least one PLMN ID.

[0448] (u33) A list of PLMNs that are permitted for the second terminal to discover using a model B discoverer operation, where the PLMN list includes at least one PLMN ID.

[0449] (u4) Second authorization information of the second terminal for indicating the type of discovery method that is permitted when the second terminal is not served by the radio access network.

[0450] Optionally, the second permission information of the second terminal may indicate whether the second terminal is authorized to use a discovery service related to the first service when the second terminal is not provided with a service from the radio access network, and whether the second terminal is authorized to use the discovery service related to the first service described above may include at least one of the following (u41)-(u42).

[0451] (u41) The second terminal is permitted to use a discovery service related to the first service using model A.

[0452] (u42) The second terminal, model B, is permitted to use a discovery service related to the first service.

[0453] (u5) Second traffic information for indicating traffic information provided by the second terminal.

[0454] (u6) A terminal identifier of the second terminal including at least one of an identity identifier of the second terminal, a device identifier of the second terminal, and a logical identifier of the second terminal. For example, the terminal identifier is one or more of the following: SUCI of the second terminal, GUTI of the second terminal, IMSI of the second terminal, PEI of the second terminal, IMEI of the second terminal, SUPI of the second terminal, TMSI of the second terminal, GPSI of the second terminal, and 5G-S-TMSI of the second terminal.

[0455] (u7) security information of the second terminal representing security parameters related to the first service;

[0456] For example, a cryptographic key of the second terminal and / or a security parameter of the first terminal.

[0457] (u8) Algorithm information of a second terminal for indicating an algorithm required to use the first service.

[0458] Optionally, the algorithm information of the second terminal is algorithm information used by the second terminal when executing the first service, and the algorithm information includes at least one of an algorithm name, an algorithm identifier, an algorithm parameter, an algorithm accuracy, etc. It should be noted that the algorithm information may also be referred to as method information.

[0459] (u9) Reference signal information of a second terminal for indicating a reference signal required to use the first service.

[0460] Optionally, the reference signal information of the second terminal may represent information of a reference signal used by the second terminal when using ranging and positioning services, and may include at least one of a reference signal name, a reference signal identifier, a reference signal frequency, a reference signal period, a reference signal power, and a reference signal accuracy.

[0461] (u10)Measurement request information for the second terminal.

[0462] Optionally, the measurement request information of the second terminal includes measurement accuracy and / or QoS information.

[0463] (u11) Third permission instruction information for permitting the second terminal to transmit a reference signal.

[0464] (u12) Fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0465] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0466] Optionally, the second traffic information is a traffic code corresponding to the second terminal for use in at least one of: identifying that the second terminal needs to use the first service; identifying that the second terminal is authorized to use the first service; and verifying that other terminals are authorized to use the first service; a traffic identifier corresponding to the second terminal for indicating that the identified traffic is authorized to use the first service; It may include at least one of the traffic types corresponding to the second terminal.

[0467] In one embodiment, the first request response message includes the second traffic information, which may be understood to indicate that the second terminal can provide the first service related to the second traffic information. For example, when the second traffic information is a traffic identifier, it may be understood that the second terminal can provide the first service related to a traffic identified by the traffic identifier.

[0468] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0469] The terminal discovery method provided in the embodiment of the present application may be executed by a terminal discovery device. The terminal discovery device provided in the embodiment of the present application will be described by taking the terminal discovery device in the embodiment of the present application as an example for executing the terminal discovery method.

[0470] FIG. 8 is a schematic diagram 1 of the configuration of a terminal discovery device provided in an embodiment of the present application. As shown in FIG. 8, the device 800 includes: A first obtaining module 801, which is used for obtaining first configuration information related to a first service including a ranging service and / or a sidelink positioning service; and a first sending module 802 used for sending a first request message to a second terminal to request discovery of a second terminal supporting the first service.

[0471] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0472] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0473] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0474] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0475] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0476] Optionally, the device further comprises: The first terminal further includes a first receiving module used to receive a first request response message sent from the second terminal after sending a first request message to the second terminal, the first request response message being used to indicate that the second terminal has received the first request message of the first terminal.

[0477] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0478] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0479] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0480] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0481] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0482] Optionally, the outcome determination method comprises: determining the first result by the first terminal; determining the first result by a second terminal; and at least one of determining said first outcome by a first terminal and a second terminal.

[0483] Optionally, the device further comprises: Further comprising: a first determination module, which is used to perform a first operation according to the first request response message after receiving the first request response message sent from the second terminal, and the first operation includes: determining, based on the second indication information and the first indication information, that the second terminal supports a first service; Determining that a second terminal supports a first service based on a terminal identifier of the first terminal in the first request response message and a terminal identifier of the first terminal in the first request message; determining that the second terminal supports a first service based on a terminal identifier of the second terminal in the first request response message and a terminal identifier of the second terminal in the first request message; determining that a second terminal supports a first service based on the second traffic information in the first request response message and the first traffic information in the first request message; determining that a second terminal supports a first service based on reference signal information of the second terminal in the first request response message and reference signal information of the first terminal in the first request message; determining that a second terminal supports a first service based on algorithm information of the second terminal in the first request response message and algorithm information of the first terminal in the first request message; determining that the second terminal supports the first service based on the measurement request information of the second terminal in the first request response message and the measurement request information of the first terminal in the first request message.

[0484] Optionally, the first auxiliary information comprises: Capability information of the first terminal, Location information of the first device; Address information of the first terminal; Security information for the first device, Further comprising at least one item of measurement information of the first terminal; The second auxiliary information is Capability information of the second device, Location information of the second device; Address information of the second terminal, Security information for the second device, It further includes at least one item of measurement information of the second terminal.

[0485] Optionally, the first configuration information is: The validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of a first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The at least one second permission indication information for permitting the first terminal to determine the reference signal result is included.

[0486] Optionally, the device further comprises: The wireless terminal further includes a second determination module used for determining a reference signal transmission manner according to the first permission indication information.

[0487] Optionally, the device further comprises: The method further comprises: a third determination module used for determining a result determination manner according to the second permission instruction information.

[0488] Optionally, the device further comprises: The terminal further comprises a second sending module, which is used for sending a second request message to request the establishment of a PC5 connection with the second terminal after sending the first request message to the second terminal.

[0489] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0490] The terminal discovery device in the embodiment of the present application may be an electronic device, for example an electronic device with an operating system, or may be a component in an electronic device, for example an integrated circuit or chip. The electronic device may be a terminal, or other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above. The other devices may be a server, a network attached storage (NAS), etc. In the embodiment of the present application, there is no specific limitation.

[0491] The terminal discovery device provided in the embodiment of the present application can realize each step implemented in the method embodiments of Figures 2-4 and achieve the same technical effects, so detailed description will be omitted here to avoid repetition.

[0492] FIG. 9 is a schematic diagram 2 of the configuration of a terminal discovery device provided in an embodiment of the present application. As shown in FIG. 9, the device 900 includes: A second obtaining module 901 is used to obtain second configuration information related to a first service, the first service being a terminal discovery related service; and a second receiving module 902 adapted to receive a first request message sent from a first terminal, the first request message being used to discover a second terminal supporting the first service.

[0493] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0494] Optionally, the device further comprises: and a third sending module, which is used for sending a third request message to request establishment of a PC5 connection with the first terminal after receiving a first request message sent from the first terminal.

[0495] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0496] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0497] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0498] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0499] Optionally, the second configuration information comprises: The validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission instruction information for permitting the second terminal to transmit a reference signal; and at least one fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0500] Optionally, the device further comprises: The wireless terminal further includes a fourth determination module used for determining a reference signal transmission manner according to the third permission indication information.

[0501] Optionally, the device further comprises: The device further includes a fifth determination module used for determining a result determination manner according to the fourth permission instruction information.

[0502] Optionally, the device further comprises: and a sixth determination module adapted to perform a second operation based on the first request message, the second operation comprising: determining that the second terminal provides a first service based on the second traffic information in the second configuration information and the first traffic information in the first request message; determining that the second terminal provides a first service based on reference signal information of the second terminal in the second configuration information and reference signal information of the first terminal in the first request message; determining that the second terminal provides a first service based on algorithm information of the second terminal in the second configuration information and algorithm information of the first terminal in the first request message; determining that the second terminal provides a first service based on measurement request information of the second terminal in the second configuration information and measurement request information of the first terminal in the first request message; determining that the second terminal provides a first service according to third permission indication information in the second configuration information and a reference signal transmission manner in the first request message; and determining that the second terminal provides a first service according to fourth permission indication information in the second configuration information and a result determination method in the first request message.

[0503] Optionally, the device further comprises: The second terminal further comprises a fourth sending module used for sending a first request response message to the first terminal to indicate that the second terminal has received the first request message of the first terminal.

[0504] Optionally, the fourth transmitting module specifically comprises: Used for transmitting the second auxiliary information in the first request response message according to the third indication information.

[0505] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information of the second terminal for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0506] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0507] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0508] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0509] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0510] Optionally, the outcome determination method comprises: The method includes at least one of determining the first outcome by a first terminal, determining the first outcome by a second terminal, and determining the first outcome by both the first terminal and the second terminal.

[0511] Optionally, the fourth transmitting module specifically comprises: It is used to send a first request response message to the first terminal based on first information including at least one of the first request message, application layer instruction information, network side instruction information, and pre-configuration information.

[0512] Optionally, when the first information includes the application layer indication information, the fourth sending module specifically: Sending a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer indication information; Sending a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the application layer indication information; Sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the application layer indication information; and transmitting a first request response message to the first terminal based on the first terminal identifier in the first request message and a terminal identifier included in the application layer indication information.

[0513] Optionally, when the first information includes the pre-arrangement information, the fourth sending module specifically: Sending a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the pre-configuration information; Sending a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the pre-configuration information; transmitting a first request response message to the first terminal based on a terminal identifier of the first terminal in the first request message and a terminal identifier of the first terminal included in the pre-configuration information; sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the pre-configuration information; Sending a first request response message to the first terminal based on address information of a second terminal in the first request message and address information of a second terminal included in the pre-configuration information; transmitting a first request response message to the first terminal based on a terminal identifier of the second terminal in the first request message and a terminal identifier of the second terminal included in the pre-configuration information.

[0514] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0515] The terminal discovery device in the embodiment of the present application may be an electronic device, for example an electronic device with an operating system, or may be a component in an electronic device, for example an integrated circuit or chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above, and the other devices may be servers, network attached storage (NAS), etc. In the embodiment of the present application, there is no specific limitation.

[0516] The terminal discovery device in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an iOS operating system, or other possible operating systems, and is not specifically limited in the embodiment of the present application.

[0517] The terminal discovery device provided in the embodiment of the present application can realize each step implemented in the method embodiment of Figure 5 and achieve the same technical effect, so detailed description will be omitted here to avoid repetition.

[0518] FIG. 10 is a schematic diagram 3 of the configuration of a terminal discovery device provided in an embodiment of the present application. As shown in FIG. 10, the device 1000 includes: The fifth transmitting module 1001 is used for transmitting first configuration information used for a first service, including a ranging service and / or a sidelink positioning service, to a first terminal.

[0519] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0520] Optionally, the first configuration information is: The validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of a first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The at least one second permission indication information for permitting the first terminal to determine the reference signal result is included.

[0521] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0522] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0523] The terminal discovery device in the embodiment of the present application may be an electronic device, for example an electronic device with an operating system, or may be a component in an electronic device, for example an integrated circuit or chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above, and the other devices may be servers, network attached storage (NAS), etc. In the embodiment of the present application, there is no specific limitation.

[0524] The terminal discovery device provided in the embodiment of the present application can realize each step implemented in the method embodiment of Figure 6 and achieve the same technical effect, so detailed description will be omitted here to avoid repetition.

[0525] FIG. 11 is a schematic diagram 4 of the configuration of a terminal discovery device provided in an embodiment of the present application. As shown in FIG. 11, the device 1100 includes: The sixth transmitting module 1101 is used for transmitting second configuration information used for a first service including a ranging service and / or a sidelink positioning service to a second terminal.

[0526] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0527] Optionally, the second configuration information comprises: The validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission instruction information for permitting the second terminal to transmit a reference signal; and at least one fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0528] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0529] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0530] The terminal discovery device in the embodiment of the present application may be an electronic device, for example an electronic device with an operating system, or may be a component in an electronic device, for example an integrated circuit or chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above, and the other devices may be servers, network attached storage (NAS), etc. In the embodiment of the present application, there is no specific limitation.

[0531] The terminal discovery device provided in the embodiment of the present application can realize each step implemented in the method embodiment of Figure 7 and achieve the same technical effect, so detailed description will be omitted here to avoid repetition.

[0532] Optionally, as shown in FIG. 12, the embodiment of the present application further provides a communication device 1200 including a processor 1201 and a memory 1202 storing a program or command executable by the processor 1201. For example, when the communication device 1200 is a first terminal, the program or command is executed by the processor 1201 to realize each step of the embodiment of the terminal discovery method corresponding to the first terminal, and the same technical effect can be achieved. When the communication device 1200 is a second terminal, the program or command is executed by the processor 1201 to realize each step of the embodiment of the terminal discovery method corresponding to the second terminal, and the same technical effect can be achieved. When the communication device 1200 is a first network side device, the program or command is executed by the processor 1201 to realize each step of the embodiment of the terminal discovery method corresponding to the first network side device, and the same technical effect can be achieved. When the communication device 1200 is a second network side device, the program or command is executed by the processor 1201 to realize each step of the embodiment of the terminal discovery method corresponding to the second network side device, and achieve the same technical effect. In order to avoid repetition, detailed description is omitted here.

[0533] An embodiment of the present application further provides a first terminal comprising a processor used for obtaining first configuration information related to a first service and a communication interface used for sending a first request message to a second terminal.

[0534] The embodiment of the terminal corresponds to the embodiment of the terminal-side method described above, and each implementation step and realization form of the embodiment of the method can be applied to the embodiment of the terminal, and the same technical effects can be achieved. Specifically, FIG. 13 is a schematic diagram of the hardware configuration of a first terminal for implementing the embodiment of the present application.

[0535] The terminal 1300 includes at least some elements such as, but not limited to, a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309 and a processor 1310.

[0536] As can be understood by those skilled in the art, the terminal 1300 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 1310 via a power management system, which may further realize functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in FIG. 13 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed description thereof will be omitted here.

[0537] It should be understood that in the embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1306 may include a display panel 13061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also called a touch panel. The touch panel 13071 may include two parts: a touch detection device and a touch controller. The other input devices 13072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever. Detailed description is omitted here.

[0538] In the embodiment of the present application, the radio frequency unit 1301 can receive downlink data from the network side device and then transmit the data to the processor 1310 for processing. Also, the radio frequency unit 1301 can transmit uplink data to the network side device. Typically, the radio frequency unit 1301 includes, but is not limited to, an antenna, an amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0539] The memory 1309 can be used to store software programs or commands and various data. The memory 1309 may mainly include a first storage area capable of storing an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.), and a second storage area for storing data. The memory 1309 may also include a volatile memory or a non-volatile memory, or the memory 1309 may include both a volatile and a non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be Random Access Memory (RAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synch link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM). Memory 1309 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0540] The processor 1310 may include one or more processing units, and may optionally integrate an application processor that mainly processes operations related to an operating system, a user interface, applications, etc., and a modem processor that mainly processes wireless communication signals, such as a baseband processor, in the processor 1310. It is understood that the modem processor may not be integrated into the processor 1310.

[0541] Wherein the processor 1310 is adapted to obtain first location information related to a first service including a ranging service and / or a sidelink positioning service; The radio frequency unit 1301 is used for sending a first request message to a second terminal to request discovery for a second terminal supporting the first service.

[0542] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0543] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0544] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0545] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0546] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0547] Optionally, the radio frequency unit 1301 may further include: It is used to receive a first request response message sent from the second terminal after sending a first request message to the second terminal, the first request response message being used to indicate that the second terminal has received the first request message of the first terminal.

[0548] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0549] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0550] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0551] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0552] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0553] Optionally, the outcome determination method comprises: determining the first result by the first terminal; determining the first result by a second terminal; and at least one of determining said first outcome by a first terminal and a second terminal.

[0554] Optionally, the processor 1310 may further After receiving a first request response message sent from the second terminal, the first operation is performed based on the first request response message, and the first operation includes: determining, based on the second indication information and the first indication information, that the second terminal supports a first service; Determining that a second terminal supports a first service based on a terminal identifier of the first terminal in the first request response message and a terminal identifier of the first terminal in the first request message; determining that the second terminal supports a first service based on a terminal identifier of the second terminal in the first request response message and a terminal identifier of the second terminal in the first request message; determining that a second terminal supports a first service based on the second traffic information in the first request response message and the first traffic information in the first request message; determining that a second terminal supports a first service based on reference signal information of the second terminal in the first request response message and reference signal information of the first terminal in the first request message; determining that a second terminal supports a first service based on algorithm information of the second terminal in the first request response message and algorithm information of the first terminal in the first request message; determining that the second terminal supports the first service based on the measurement request information of the second terminal in the first request response message and the measurement request information of the first terminal in the first request message.

[0555] Optionally, the first auxiliary information comprises: Capability information of the first terminal, Location information of the first device; Address information of the first terminal; Security information for the first device, Further comprising at least one item of measurement information of the first terminal; The second auxiliary information is Capability information of the second device, Location information of the second device; Address information of the second terminal, Security information for the second device, It further includes at least one item of measurement information of the second terminal.

[0556] Optionally, the first configuration information is: The validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of a first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The at least one second permission indication information for permitting the first terminal to determine the reference signal result is included.

[0557] Optionally, the processor 1310 may further The first permission indication information is used to determine a reference signal transmission method based on the first permission indication information.

[0558] Optionally, the processor 1310 may further It is used to determine a result determination method based on the second permission instruction information.

[0559] Optionally, the radio frequency unit 1301 may further include: After sending the first request message to the second terminal, it is used to send a second request message to request the establishment of a PC5 connection with the second terminal.

[0560] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0561] The examples of the present application are a processor adapted to obtain second configuration information associated with the first service; A second terminal is further provided, the second terminal comprising: a communication interface used for receiving the first request message sent from the first terminal.

[0562] The embodiment of the terminal corresponds to the embodiment of the terminal-side method described above, and each implementation step and realization form of the embodiment of the method can be applied to the embodiment of the terminal, and the same technical effects can be achieved. Specifically, FIG. 14 is a schematic diagram of the hardware configuration of the second terminal for implementing the embodiment of the present application.

[0563] The terminal 1400 includes at least some elements such as, but not limited to, a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409 and a processor 1410.

[0564] As can be understood by those skilled in the art, the terminal 1400 may further include a power source (e.g., a battery) for supplying power to each component, and the power source may be logically connected to the processor 1410 via a power management system, which may further realize functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in FIG. 14 is not intended to limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed descriptions thereof will be omitted here.

[0565] It should be understood that in the embodiment of the present application, the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 1406 may include a display panel 14061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also called a touch panel. The touch panel 14071 may include two parts: a touch detection device and a touch controller. The other input devices 14072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever. A detailed description is omitted here.

[0566] In the embodiment of the present application, the radio frequency unit 1401 can receive downlink data from the network side device and then transmit the data to the processor 1410 for processing. Also, the radio frequency unit 1401 can transmit uplink data to the network side device. Typically, the radio frequency unit 1401 includes, but is not limited to, an antenna, an amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0567] The memory 1409 can be used to store software programs or commands and various data. The memory 1409 may mainly include a first storage area capable of storing an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.), and a second storage area for storing data. The memory 1409 may also include a volatile memory or a non-volatile memory, or the memory 1409 may include both a volatile and a non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be Random Access Memory (RAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synch link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM). Memory 1409 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0568] The processor 1410 may include one or more processing units, and may optionally integrate an application processor that mainly processes operations related to an operating system, a user interface, applications, etc., and a modem processor that mainly processes wireless communication signals, such as a baseband processor, in the processor 1410. It is understandable that the modem processor may not be integrated into the processor 1410.

[0569] Wherein, the processor 1410 is used to obtain second configuration information related to a first service, the first service being a terminal discovery related service; The radio frequency unit 1401 is used for receiving a first request message sent from a first terminal, which is used for discovery to a second terminal supporting the first service.

[0570] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0571] Optionally, the radio frequency unit 1401 may further include: After receiving a first request message sent from a first terminal, it is used to send a third request message to request the establishment of a PC5 connection with the first terminal.

[0572] Optionally, the first request message comprises: first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding a first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0573] Optionally, the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

[0574] Optionally, the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

[0575] Optionally, the first request message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

[0576] Optionally, the second configuration information comprises: The validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission instruction information for permitting the second terminal to transmit a reference signal; and at least one fourth permission indication information for permitting the second terminal to determine the reference signal result.

[0577] Optionally, the processor 1410 may further The third permission indication information is used to determine a reference signal transmission method based on the third permission indication information.

[0578] Optionally, the processor 1410 may further It is used to determine a result determination method based on the fourth permission instruction information.

[0579] Optionally, the processor 1410 may further and performing a second operation based on the first request message, the second operation comprising: determining that the second terminal provides a first service based on the second traffic information in the second configuration information and the first traffic information in the first request message; determining that the second terminal provides a first service based on reference signal information of the second terminal in the second configuration information and reference signal information of the first terminal in the first request message; determining that the second terminal provides a first service based on algorithm information of the second terminal in the second configuration information and algorithm information of the first terminal in the first request message; determining that the second terminal provides a first service based on measurement request information of the second terminal in the second configuration information and measurement request information of the first terminal in the first request message; determining that the second terminal provides a first service according to third permission indication information in the second configuration information and a reference signal transmission manner in the first request message; and determining that the second terminal provides a first service according to fourth permission indication information in the second configuration information and a result determination method in the first request message.

[0580] Optionally, the radio frequency unit 1401 may further include: The first request message is used to transmit a first request response message to the first terminal to indicate that the second terminal has received the first request message of the first terminal.

[0581] Optionally, the radio frequency unit 1401 may further include: Used for transmitting the second auxiliary information in the first request response message according to the third indication information.

[0582] Optionally, the first request response message comprises: second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information of the second terminal for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, It includes at least one outcome determination method.

[0583] Optionally, the first request response message further includes address information of the first terminal and / or address information of the second terminal; or The address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

[0584] Optionally, the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

[0585] Optionally, the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

[0586] Optionally, the reference signal transmission scheme comprises: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The method includes at least one of: transmitting a reference signal by an event trigger.

[0587] Optionally, the outcome determination method comprises: The method includes at least one of determining the first outcome by a first terminal, determining the first outcome by a second terminal, and determining the first outcome by both the first terminal and the second terminal.

[0588] Optionally, the radio frequency unit 1401 may further include: It is used to send a first request response message to the first terminal based on first information including at least one of the first request message, application layer instruction information, network side instruction information, and pre-configuration information.

[0589] Optionally, the radio frequency unit 1401 Sending a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer indication information; Sending a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the application layer indication information; Sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the application layer indication information; and transmitting a first request response message to the first terminal based on the first terminal identifier in the first request message and a terminal identifier included in the application layer indication information.

[0590] Optionally, the radio frequency unit 1401 transmitting a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the pre-configuration information; Sending a first request response message to the first terminal according to the result determination method in the first request message and the result determination method included in the pre-configuration information; transmitting a first request response message to the first terminal based on a terminal identifier of the first terminal in the first request message and a terminal identifier of the first terminal included in the pre-configuration information; sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the pre-configuration information; Sending a first request response message to the first terminal based on address information of a second terminal in the first request message and address information of a second terminal included in the pre-configuration information; transmitting a first request response message to the first terminal based on a terminal identifier of the second terminal in the first request message and a terminal identifier of the second terminal included in the pre-configuration information.

[0591] In an embodiment of the present application, the ranging and / or sidelink positioning services are performed by obtaining configuration information related to the ranging and / or sidelink positioning services. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning services, a first request message is sent to realize the terminal supporting the ranging and / or sidelink positioning services discovering another terminal supporting the ranging and / or sidelink positioning services, so as to obtain the ranging and / or sidelink positioning services.

[0592] An embodiment of the present application further provides a first network side device comprising a processor and a communication interface used for transmitting first location information to a first terminal, the first location information being used for a first service including a ranging service and / or a sidelink positioning service.

[0593] This embodiment of the first network side equipment corresponds to the above-mentioned embodiment of the method of the first network side equipment, and each implementation step and realization form of the above-mentioned method embodiment can be applied to this embodiment of the first network side equipment, and the same technical effects can be achieved.

[0594] Specifically, the embodiment of the present application further provides a first network side device. Figure 15 is a schematic diagram of the hardware configuration of the first network side device for implementing the embodiment of the present application. As shown in Figure 15, the first network side device 1500 includes an antenna 1501, a radio frequency device 1502, a baseband device 1503, a processor 1504 and a memory 1505. The antenna 1501 is connected to the radio frequency device 1502. In the uplink direction, the radio frequency device 1502 receives information through the antenna 1501, and transmits the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the transmitted information and transmits it to the radio frequency device 1502, and the radio frequency device 1502 processes the received information before transmitting it via the antenna 1501.

[0595] The method performed by the first network side device in the above embodiment can be implemented by a baseband device 1503, which includes a baseband processor.

[0596] The baseband device 1503 may, for example, include at least one baseband board on which multiple chips are installed, and as shown in FIG. 15, one of the chips is, for example, a baseband processor connected to a memory 1505 via a bus interface and calling a program in the memory 1505 to perform the operations of the network equipment shown in the above method embodiment.

[0597] The first network side device may further include a network interface 1506, which is, for example, a common public radio interface (CPRI).

[0598] Specifically, the first network side device 1500 of the embodiment of the present invention further includes a command or program stored in the memory 1505 and executable by the processor 1504, and the processor 1504 calls the command or program in the memory 1505 to execute the method executed by each module shown in Fig. 10, and the same technical effect is achieved. In order to avoid repetition, detailed description is omitted here.

[0599] An embodiment of the present application further provides a second network side device comprising a processor and a communication interface used for transmitting second configuration information to a second terminal, the second configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

[0600] This embodiment of the second network side equipment corresponds to the above-mentioned embodiment of the method of the second network side equipment, and each implementation step and realization form of the above-mentioned method embodiment can be applied to this embodiment of the second network side equipment, and the same technical effects can be achieved.

[0601] Specifically, the embodiment of the present application further provides a second network side device. Figure 16 is a schematic diagram of the hardware configuration of the second network side device for implementing the embodiment of the present application. As shown in Figure 16, the second network side device 1600 includes an antenna 1601, a radio frequency device 1602, a baseband device 1603, a processor 1604 and a memory 1605. The antenna 1601 is connected to the radio frequency device 1602. In the uplink direction, the radio frequency device 1602 receives information through the antenna 1601 and transmits the received information to the baseband device 1603 for processing. In the downlink direction, the baseband device 1603 processes the transmitted information and transmits it to the radio frequency device 1602, and the radio frequency device 1502 processes the received information before transmitting it via the antenna 1601.

[0602] The method performed by the second network side device in the above embodiment can be implemented by a baseband device 1603, which includes a baseband processor.

[0603] The baseband device 1603 may, for example, include at least one baseband board on which multiple chips are installed, and as shown in FIG. 16, one of the chips is, for example, a baseband processor connected to a memory 1605 via a bus interface and calling a program in the memory 1605 to perform the operations of the network equipment shown in the above method embodiment.

[0604] The second network side device may further include a network interface 1606, which is, for example, a common public radio interface (CPRI).

[0605] Specifically, the second network side device 1600 of the embodiment of the present invention further includes a command or program stored in the memory 1605 and executable by the processor 1604, and the processor 1604 calls the command or program in the memory 1605 to execute the method executed by each module shown in Fig. 11, and the same technical effect is achieved. In order to avoid repetition, detailed description is omitted here.

[0606] An embodiment of the present application further provides a readable storage medium storing a program or command, which, when executed by a processor, can realize each step of the embodiment of the above terminal discovery method and achieve the same technical effect, and detailed description thereof will be omitted here to avoid repetition.

[0607] Wherein, the processor is the processor in the terminal according to the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0608] The embodiment of the present application further provides a chip including a processor and a communication interface, the communication interface and the processor are coupled together, and the processor executes a program or command to realize each step of the embodiment of the terminal discovery method described above, and can achieve the same technical effect. In order to avoid repetition, detailed description is omitted here.

[0609] It should be understood that the chips referred to in the embodiments of this application may be referred to as system level chips, system chips, chip systems, system on chips, or the like.

[0610] An embodiment of the present application further provides a computer program / program product that is stored in a storage medium and executed by at least one processor to realize each step of the embodiment of the above-mentioned terminal discovery method and achieve the same technical effect, and detailed description thereof will be omitted here to avoid repetition.

[0611] An embodiment of the present application further provides a terminal discovery system comprising a first terminal usable for performing steps of the terminal discovery method described above, a second terminal usable for performing steps of the terminal discovery method described above, a first network side device usable for performing steps of the terminal discovery method described above, and a second network side device usable for performing steps of the terminal discovery method described above.

[0612] It should be noted that in this specification, the terms "comprise", "consist of" or any other variations are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly stated or inherent to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions substantially simultaneously or in the reverse order depending on such functions, and the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to any example may be combined in other examples.

[0613] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform. Of course, it can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solution of the present application can be substantially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the embodiments of the present application.

[0614] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. a first terminal obtaining first configuration information related to a first service, the first service including a ranging service and / or a sidelink positioning service; the first terminal sending a first request message to a second terminal to request discovery of a second terminal supporting the first service.

2. The first request message is first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; A terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, The terminal discovery method of claim 1 , further comprising at least one outcome determination method.

3. The terminal discovery method according to claim 2 , wherein the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

4. The terminal discovery method according to claim 2 or 3, wherein the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

5. The first request message further includes address information of the first terminal and / or address information of the second terminal; or 5. The terminal discovery method according to claim 2, wherein the address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request message.

6. After the step of the first terminal transmitting a first request message to the second terminal, 6. The terminal discovery method according to claim 1, further comprising a step of receiving, by the first terminal, a first request response message transmitted from the second terminal and used to indicate that the second terminal has received the first request message of the first terminal.

7. The first request response message is second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, The terminal discovery method of claim 6, further comprising at least one outcome determination method.

8. The method of claim 7, wherein the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

9. The first request response message further includes address information of the first terminal and / or address information of the second terminal, or 9. The terminal discovery method according to claim 7, wherein the address information of the first terminal and / or the address information of the second terminal is transmitted along with the first request response message.

10. The terminal discovery method according to any one of claims 2 to 5 or any one of claims 7 to 9, wherein the second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal.

11. The reference signal transmission method includes: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; The terminal discovery method according to claim 2 , further comprising at least one of transmitting a reference signal by an event trigger.

12. The result determination method is: determining a first result by the first terminal; determining the first result by a second terminal; A method for terminal discovery according to any one of claims 2 to 5 or any one of claims 7 to 11, comprising at least one of determining the first outcome by a first terminal and a second terminal.

13. After the first terminal receives a first request response message transmitted from the second terminal, The method further includes the step of: the first terminal performing a first operation based on the first request response message, the first operation including: The first terminal determines, based on the second indication information and the first indication information, that the second terminal supports a first service; The first terminal determines that the second terminal supports a first service based on a terminal identifier of the first terminal in the first request response message and a terminal identifier of the first terminal in the first request message; The first terminal determines that the second terminal supports a first service based on a terminal identifier of the second terminal in the first request response message and a terminal identifier of the second terminal in the first request message; The first terminal determines that the second terminal supports a first service based on the second traffic information in the first request response message and the first traffic information in the first request message; The first terminal determines that the second terminal supports a first service based on reference signal information of the second terminal in the first request response message and reference signal information of the first terminal in the first request message; The first terminal determines that the second terminal supports a first service based on algorithm information of the second terminal in the first request response message and algorithm information of the first terminal in the first request message; The terminal discovery method according to any one of claims 6 to 9, further comprising at least one of: determining, by the first terminal, that the second terminal supports a first service based on measurement request information of the second terminal in the first request response message and measurement request information of the first terminal in the first request message.

14. The first auxiliary information is Capability information of the first terminal; Location information of the first terminal; Address information of the first terminal; Security information of the first terminal; Further comprising at least one item of measurement information of the first terminal; The second auxiliary information is Capability information of the second terminal; Location information of the second terminal; Address information of the second terminal; Security information of the second terminal; The terminal discovery method according to claim 2 , further comprising at least one measurement information of the second terminal.

15. The first arrangement information is A validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is permitted when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of the first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The terminal discovery method according to claim 1 to claim 14, further comprising at least one second permission indication information for allowing the first terminal to determine the reference signal result.

16. The terminal discovery method according to claim 15, further comprising: the first terminal determining a reference signal transmission method based on the first permission indication information.

17. The terminal discovery method according to claim 15, further comprising the step of: the first terminal determining a result determination manner based on the second permission indication information.

18. After the step of the first terminal transmitting a first request message to the second terminal, The terminal discovery method according to any one of claims 1 to 17, further comprising the step of the first terminal sending a second request message for requesting the establishment of a PC5 connection with the second terminal.

19. A second terminal obtains second configuration information related to a first service, the first service being a terminal discovery related service; receiving, by the second terminal, a first request message transmitted from a first terminal, the first request message being used for discovery of a second terminal supporting the first service.

20. After the second terminal receives a first request message transmitted from the first terminal, 20. The terminal discovery method according to claim 19, further comprising the step of the second terminal sending a third request message to request establishment of a PC5 connection with the first terminal.

21. The first request message is first indication information for indicating that the first request message is used for the first service; third instruction information for instructing the second terminal to transmit second aiding information for aiding the first terminal in discovering a second terminal supporting the first service; a first message type for indicating a message type of the first request message; A terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; A terminal identifier of the second terminal; first traffic information for indicating requested traffic information to the first terminal; First aiding information for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, 21. A terminal discovery method according to claim 19 or 20, comprising at least one outcome determination scheme.

22. The terminal discovery method according to claim 21 , wherein the first auxiliary information includes at least one of reference signal information of the first terminal, algorithm information of the first terminal, and measurement request information of the first terminal.

23. 23. The method of claim 21 or 22, wherein the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

24. The first request message further includes address information of the first terminal and / or address information of the second terminal; or The method according to any one of claims 21 to 23, wherein address information of the first terminal and / or address information of the second terminal are transmitted along with the first request message.

25. The second arrangement information is A validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal, the terminal identifier including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission indication information for permitting the second terminal to transmit a reference signal; The terminal discovery method according to any one of claims 19 to 24, further comprising at least one fourth permission indication information for allowing the second terminal to determine the reference signal result.

26. The terminal discovery method according to claim 25, further comprising: the second terminal determining a reference signal transmission method based on the third permission indication information.

27. The terminal discovery method according to claim 25, further comprising the step of: the second terminal determining a result determination manner based on the fourth permission indication information.

28. The method further includes the step of: the second terminal performing a second operation based on the first request message, the second operation comprising: The second terminal determines, based on the second traffic information in the second configuration information and the first traffic information in the first request message, that the second terminal provides a first service; The second terminal determines that the second terminal provides a first service based on reference signal information of the second terminal in the second configuration information and reference signal information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on algorithm information of the second terminal in the second configuration information and algorithm information of the first terminal in the first request message; The second terminal determines that the second terminal provides a first service based on measurement request information of the second terminal in the second configuration information and measurement request information of the first terminal in the first request message; The second terminal determines, based on third permission indication information in the second configuration information and a reference signal transmission manner in the first request message, that the second terminal provides a first service; The terminal discovery method according to any one of claims 25 to 27, further comprising at least one of: determining, by the second terminal, that the second terminal provides the first service based on fourth permission indication information in the second configuration information and a result determination method in the first request message.

29. 28. The terminal discovery method according to claim 19, further comprising the step of: the second terminal transmitting a first request response message to the first terminal to indicate that the second terminal has received the first request message of the first terminal.

30. The step of transmitting a first request response message from the second terminal to the first terminal includes:

30. The terminal discovery method according to claim 29, further comprising the step of: the second terminal transmitting second auxiliary information in the first request response message based on third indication information.

31. The first request response message is second indication information for indicating that the first request response message is used for the first service; a second message type for indicating a message type of the first request response message; second traffic information for indicating traffic information provided from the second terminal; A terminal identifier of the first terminal; A terminal identifier of the second terminal; second aiding information of the second terminal for aiding the first terminal in discovering a second terminal supporting the first service; Reference signal transmission method, 31. A terminal discovery method according to claim 29 or 30, comprising at least one outcome determination scheme.

32. The first request response message further includes address information of the first terminal and / or address information of the second terminal, or The terminal discovery method according to claim 31, wherein the address information of the first terminal and / or the address information of the second terminal are transmitted along with the first request response message.

33. The terminal discovery method according to any one of claims 25 to 28, or claim 31 or claim 32, wherein the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

34. The second auxiliary information includes at least one of reference signal information of the second terminal, algorithm information of the second terminal, and measurement request information of the second terminal. A terminal discovery method according to any one of claims 21 to 28 or any one of claims 31 to 33.

35. The reference signal transmission method includes: transmitting a reference signal by the first terminal; transmitting a reference signal by the second terminal; transmitting a reference signal by the first terminal and the second terminal; Immediate transmission of reference signals, Periodic transmission of a reference signal; A method for discovering a terminal according to any one of claims 21 to 28 or any one of claims 31 to 34, comprising at least one of event-triggered transmission of a reference signal.

36. The result determination method is:

35. A method for discovering a terminal as claimed in any one of claims 21 to 28 or any one of claims 31 to 34, comprising at least one of determining the first result by a first terminal, determining the first result by a second terminal, and determining the first result by the first terminal and the second terminal.

37. The step of transmitting a first request response message from the second terminal to the first terminal includes: The terminal discovery method according to any one of claims 29 to 32, further comprising: a step in which the second terminal sends a first request response message to the first terminal based on first information including at least one of a first request message, application layer indication information, network side indication information, and pre-configuration information.

38. When the first information includes the application layer indication information, the second terminal transmits a first request response message to the first terminal based on the first information, The second terminal transmits a first request response message to the first terminal based on the reference signal transmission scheme in the first request message and the reference signal transmission scheme included in the application layer indication information; The second terminal sends a first request response message to the first terminal according to a result determination method in the first request message and a result determination method included in the application layer indication information; the second terminal transmitting a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the application layer indication information; and a step of the second terminal transmitting a first request response message to the first terminal based on the first terminal identifier in the first request message and a terminal identifier included in the application layer indication information.

39. When the first information includes the pre-configuration information, the second terminal transmits a first request response message to the first terminal based on the first information, the second terminal transmitting a first request response message to the first terminal based on a reference signal transmission scheme in the first request message and a reference signal transmission scheme included in the pre-configuration information; The second terminal sends a first request response message to the first terminal based on the result determination method in the first request message and the result determination method included in the pre-configuration information; a step of the second terminal transmitting a first request response message to the first terminal based on a terminal identifier of the first terminal in the first request message and a terminal identifier of the first terminal included in the pre-configuration information; the second terminal sending a first request response message to the first terminal based on the first traffic information in the first request message and traffic information included in the pre-configuration information; The second terminal transmits a first request response message to the first terminal based on the address information of the second terminal in the first request message and the address information of the second terminal included in the pre-configuration information; and the second terminal transmitting a first request response message to the first terminal based on a terminal identifier of the second terminal in the first request message and a terminal identifier of the second terminal included in the pre-configuration information.

40. A terminal discovery method, comprising a step in which a first network side transmits, to a first terminal, first configuration information used for a first service including a ranging service and / or a sidelink positioning service.

41. The first arrangement information is A validity period of the first configuration information; first authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is served by a radio access network; a first permission list of the first terminal for indicating a list of PLMNs in which the first terminal should perform discovery when served by a radio access network; second authorization information of the first terminal for indicating a type of discovery method that is authorized when the first terminal is not served by the radio access network; first traffic information for indicating requested traffic information to the first terminal; a terminal identifier of the first terminal, the terminal identifier including at least one of an identity identifier, a device identifier, and a logical identifier; security information of the first terminal representing security parameters associated with the first service; Algorithm information of the first terminal for indicating an algorithm required to use the first service; Reference signal information of a first terminal for indicating a reference signal required for using the first service; Measurement request information of the first terminal; First permission indication information for permitting the first terminal to transmit a reference signal; The terminal discovery method of claim 40, further comprising at least one of a second permission indication information for permitting the first terminal to determine the reference signal result.

42. 42. The method of claim 41, wherein the first traffic information includes at least one of a traffic code corresponding to the first terminal, a traffic identifier corresponding to the first terminal, and a traffic type corresponding to the first terminal.

43. A terminal discovery method comprising a step of a second network side transmitting second configuration information to a second terminal, the second configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

44. The second arrangement information is A validity period of the second configuration information; first authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is served by the radio access network; a first permission list of the second terminal for indicating a list of PLMNs in which the second terminal should perform discovery when served by a radio access network; second authorization information of the second terminal for indicating a type of discovery method that is authorized when the second terminal is not served by the radio access network; second traffic information for indicating traffic information provided by the second terminal; a terminal identifier of the second terminal, the terminal identifier including at least one of a user identifier, a device identifier, and a logical identifier; security information of a second terminal indicating security parameters associated with the first service; algorithm information of a second terminal for indicating an algorithm required to use the first service; Reference signal information of a second terminal for indicating a reference signal required to use the first service; Measurement request information of the second terminal; third permission indication information for permitting the second terminal to transmit a reference signal; The terminal discovery method according to claim 43, further comprising at least one fourth permission indication information for allowing the second terminal to determine the reference signal result.

45. 45. The method of claim 44, wherein the second traffic information includes at least one of a traffic code corresponding to the second terminal, a traffic identifier corresponding to the second terminal, and a traffic type corresponding to the second terminal.

46. a first acquiring module adapted to acquire first location information related to a first service, the first location information including a ranging service and / or a sidelink positioning service; a first sending module used for sending a first request message to a second terminal for requesting discovery of a second terminal supporting the first service.

47. a second acquiring module adapted to acquire second configuration information related to the first service, the first service being a terminal discovery related service; A terminal discovery device comprising: a second receiving module adapted to receive a first request message sent from a first terminal, the first request message being used to discover a second terminal supporting the first service.

48. A terminal discovery device comprising: a fifth transmitting module adapted to transmit first location information to a first terminal, the first location information being used for a first service including a ranging service and / or a sidelink positioning service.

49. A terminal discovery device comprising a sixth transmitting module adapted to transmit second configuration information to a second terminal, the second configuration information being used for a first service including a ranging service and / or a sidelink positioning service.

50. A first terminal comprising a processor and a memory for storing programs or commands executable by the processor, the programs or commands being executed by the processor to implement the steps of the terminal discovery method according to any one of claims 1 to 18.

51. A second terminal comprising a processor and a memory for storing programs or commands executable by said processor, said programs or commands being executed by said processor to implement the steps of the terminal discovery method according to any one of claims 19 to 39.

52. A first network side device comprising a processor and a memory for storing programs or commands executable by the processor, the first network side device realizing the steps of the terminal discovery method according to any one of claims 40 to 42 when the programs or commands are executed by the processor.

53. A second network side device comprising a processor and a memory for storing a program or command executable by the processor, the second network side device realizing the steps of the terminal discovery method according to any one of claims 43 to 45 when the program or command is executed by the processor.

54. A readable storage medium storing a program or command, which, when executed by a processor, implements a terminal discovery method as claimed in any one of claims 1 to 18, or implements a terminal discovery method as claimed in any one of claims 19 to 39, or implements a terminal discovery method as claimed in any one of claims 40 to 42, or implements steps of a terminal discovery method as claimed in any one of claims 43 to 45.

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