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 the priority of a Chinese patent application with an application number of 202210303809.6 and an invention title of "Terminal Discovery Method, Device, Equipment and Storage Medium", filed on March 24, 2022, and all of it is incorporated into this application by reference.

[0002] This application belongs to the technical field of communications, and specifically relates to a terminal discovery method, device, equipment and storage medium.

Background Art

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

[0004] In the different application areas mentioned above, communication between terminals can be achieved using different access technologies. Examples include LTE-based vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communication, new wireless communication NR sidelink, and other radio access technologies (Radio Access Technology, RAT) that can be supported by PC5. Therefore, how to enable one terminal supporting ranging services and sidelink positioning to discover another terminal supporting ranging services and sidelink positioning before performing ranging services and sidelink positioning is a technical problem that those skilled in the art should urgently address. [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] Embodiments of this application provide a terminal discovery method, apparatus, device, and storage medium that enable a terminal supporting ranging services and sidelink positioning to discover another terminal supporting ranging services and sidelink positioning.

[0006] In the first embodiment, a terminal discovery method applied to a first terminal, The first terminal acquires first placement information related to a first service, including a ranging service and / or a side-link positioning service. The present invention provides a terminal discovery method, which includes the step of the first terminal sending a first request message to the second terminal to request discovery of the second terminal that supports the first service.

[0007] In the second embodiment, a terminal discovery method applied to a second terminal, The second terminal obtains second location information related to the first service, which is a terminal discovery-related service. The present invention provides a terminal discovery method, which includes the step of the second terminal receiving a first request message transmitted from the first terminal, used for discovery of the second terminal that supports the first service.

[0008] In the third embodiment, a terminal discovery method applied to the first network side, The present invention provides a terminal discovery method that includes the step of the first network side transmitting first location information used in a first service, including a ranging service and / or a side-link positioning service, to a first terminal.

[0009] In the fourth embodiment, a terminal discovery method applied to the second network side, The present invention provides a terminal discovery method that includes the step of the second network side transmitting second location information used in the first service, including a ranging service and / or a side-link positioning service, to the second terminal.

[0010] In the fifth embodiment, a terminal detection device applied to the first terminal, A first acquisition module used to acquire first placement information related to a first service including a ranging service and / or a side-link positioning service, The present invention provides a terminal discovery device comprising: a first transmission module used to send a first request message to a second terminal for requesting discovery of the second terminal supporting the first service.

[0011] In the sixth embodiment, a terminal detection device applied to a second terminal, A second acquisition module used to acquire second location information related to the first service, which is a terminal discovery-related service, The present invention provides a terminal discovery device comprising: a first terminal and a second receiving module used to receive a first request message transmitted from a first terminal, which is used for discovery of a second terminal that supports the first service.

[0012] In the seventh embodiment, a terminal discovery device applied to the first network side, The present invention provides a terminal discovery device comprising a fifth transmission module used to transmit first location information used in a first service, including a ranging service and / or a side-link positioning service, to a first terminal.

[0013] In the eighth embodiment, a terminal discovery device applied to the second network side, The present invention provides a terminal discovery device comprising a sixth transmission module used to transmit second location information used in a first service, including a ranging service and / or a side-link positioning service, to a second terminal.

[0014] In a ninth embodiment, a first terminal is provided, comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the steps of the method described in the first embodiment are realized.

[0015] In a tenth embodiment, a first terminal is provided, comprising a processor used to acquire first placement information related to a first service, and a communication interface used to send a first request message to a second terminal.

[0016] In an eleventh embodiment, a second terminal is provided, comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the steps of the method described in the second embodiment are realized.

[0017] In a twelfth embodiment, a second terminal is provided, comprising a processor used to acquire second placement information related to a first service, and a communication interface used to receive a first request message transmitted from a first terminal.

[0018] In a thirteenth embodiment, a first network-side device is provided, comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the steps of the method described in the third embodiment are realized.

[0019] In a fourteenth embodiment, a first network-side device is provided, comprising a processor and a communication interface used to transmit first location information used in a first service, including a ranging service and / or a side-link positioning service, to a first terminal.

[0020] In a 15th embodiment, a second network-side device is provided, comprising a processor and a memory for storing a program or command executable by the processor, wherein when the program or command is executed by the processor, the device realizes the steps of the method described in the 4th embodiment.

[0021] In a sixteenth embodiment, a second network-side device is provided, comprising a processor and a communication interface used to transmit second location information used in a first service, including a ranging service and / or a side-link positioning service, to a second terminal.

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

[0023] In the 18th aspect, there is provided a readable storage medium storing a program or command, which, when executed by a processor, realizes the steps of the method described in the 1st aspect, or realizes the steps of the method described in the 2nd aspect, or realizes the steps of the method described in the 3rd aspect, or realizes the steps of the method described in the 4th aspect.

[0024] In the 19th aspect, there is provided a chip including a processor and a communication interface, the communication interface being coupled to the processor, and the processor executing a program or command to realize the method described in the 1st aspect, or realize the method described in the 2nd aspect, or realize the method described in the 3rd aspect, or realize the method described in the 4th aspect.

[0025] In the 20th aspect, there is provided a computer program / product stored in a storage medium and executed by at least one processor to realize the steps of the terminal discovery method described in the 1st aspect, or realize the steps of the terminal discovery method described in the 2nd aspect, or realize the steps of the terminal discovery method described in the 3rd aspect, or realize the steps of the terminal discovery method described in the 4th aspect.

Advantages of the Invention

[0026] In the embodiments of the present application, a ranging and / or sidelink positioning service is executed by obtaining configuration information related to the ranging and / or sidelink positioning service. When it is necessary to discover a terminal supporting the ranging and / or sidelink positioning service, by transmitting a first request message, it is realized that a terminal supporting the ranging and / or sidelink positioning service discovers another terminal supporting the ranging and / or sidelink positioning service, and thus the ranging and / or sidelink positioning service can be obtained.

Brief Description of the Drawings

[0027] [Figure 1]A block diagram of a wireless communication system applicable to the embodiments of this application is shown. [Figure 2] This is flowchart 1 of the terminal discovery method provided in the embodiment of this application. [Figure 3] This is flowchart 2 of the terminal discovery method provided in the embodiment of this application. [Figure 4] This is flowchart 3 of the terminal discovery method provided in the embodiment of this application. [Figure 5] This is flowchart 4 of the terminal discovery method provided in the embodiment of this application. [Figure 6] This is flowchart 5 of the terminal discovery method provided in the embodiment of this application. [Figure 7] This is flowchart 6 of the terminal discovery method provided in the embodiment of this application. [Figure 8] This is a schematic diagram 1 of the configuration of the terminal detection device provided in the embodiment of this application. [Figure 9] This is a schematic diagram 2 of the configuration of the terminal detection device provided in the embodiment of this application. [Figure 10] Figure 3 is a schematic diagram of the configuration of the terminal detection device provided in the embodiment of this application. [Figure 11] Figure 4 is a schematic diagram of the configuration of the terminal detection device provided in the embodiment of this application. [Figure 12] This is a schematic diagram of the configuration of the communication equipment provided in the embodiment of this application. [Figure 13] This is a schematic diagram of the hardware configuration of a first terminal that implements the embodiment of this application. [Figure 14] This is a schematic diagram of the hardware configuration of a second terminal that implements the embodiment of this application. [Figure 15] This is a schematic diagram of the hardware configuration of the first network-side device that implements the embodiment of this application. [Figure 16] This is a schematic diagram of the hardware configuration of a second network-side device that implements the embodiment of this application. [Modes for carrying out the invention]

[0028] In the following, the technical solutions in the embodiments of this application will be clearly described with reference to the drawings of the embodiments of this application. Naturally, the embodiments described are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application are all within the scope of protection of this application.

[0029] The terms "first," "second," etc., in the specification and claims of this application are not intended to describe a specific order or sequence, but rather to distinguish similar subjects. It should be understood that these terms may be interchangeable where appropriate so that the embodiments of this application can be carried out in an order other than those illustrated or described herein. Furthermore, it should be understood that the subjects distinguished by "first," "second," etc., usually belong to a single category and do not limit the number of subjects; for example, there may be one or more first subjects. Also, in the specification and claims, "and / or" indicates at least one of the connected subjects, and the symbol " / " generally indicates that the preceding and succeeding related subjects are in an "or" relationship.

[0030] It should be noted that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to 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 this application are often used interchangeably, and the technologies described can be applied to other systems and wireless telegraph technologies in addition to the systems and wireless telegraph technologies described above. For illustrative purposes, a New Radio (NR) system will be described below. Furthermore, although NR terminology will be used in much of the following explanation, these technologies can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0031] Figure 1 shows a block diagram of a wireless communication system that can be applied in the embodiment of this application. The wireless communication system includes a terminal 11 and network-side equipment 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 information terminal, 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-mounted equipment (PUE), a smart home (home device with wireless communication capabilities such as a refrigerator, television, washing machine, or furniture), a game console, a personal computer (PC), an ATM, or a kiosk. Wearable devices include smartwatches, smart wristbands, smart earphones, smart glasses, smart accessories (smart bracelets, smart rings, smart necklaces, smart anklets, etc.), smart wristlets, smart wear, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application. Network-side equipment 12 may include access network equipment or core network equipment. Here, access network equipment 12 may be called wireless access network equipment, radio access network (RAN), wireless access network function, or wireless access network unit.The access network equipment 12 may include a base station, a WLAN access point, or a WiFi node, and the base station may also be called a node B, an advanced 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 advanced B node, a transmitting and receiving point (TRP), or any other appropriate term in the art, and the base station is not limited to any particular technical term as long as the same technical effect can be achieved. It should be noted that, although the embodiments of this application only use a base station in an NR system as an example, the specific type of base station is not limited.The core network equipment includes core network nodes, core network functions, 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 (or L-NEF), Binding Support Function (BSF), and Application Function (Application It may include, but is not limited to, at least one of Function, AF, etc. In the embodiments of this application, only core network equipment in an NR system is presented as an example, but it should be noted that the specific type of core network equipment is not limited.

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

[0033] Figure 2 is a flowchart 1 of the terminal detection method provided in an embodiment of this application, and as shown in Figure 2, the method is Step 200, in which the first terminal acquires first placement information related to the first service, including ranging service and / or side-link positioning service, The first terminal sends a first request message to the second terminal to request discovery of the second terminal that supports the first service.

[0034] Selectively, the first service represents a ranging and / or side-link positioning service, which may be a ranging service, a side-link positioning service, or a ranging and side-link positioning service.

[0035] Here, ranging refers to determining the distance between two user equipment (UEs) and / or the direction between one UE (i.e., the target UE) and the other UE (i.e., the observer UE) by directly connecting the devices. In the case of 3D, direction includes the horizontal and vertical directions. Services based on ranging may measure only distance, only direction, or both distance and direction.

[0036] Distance-based services are expected to be used in various vertical sectors, such as consumer electronics, smart homes, smart cities, smart transportation, smart retail, and Industry 4.0. For example, the following are some examples:

[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 determines the TV screen area for the UE, enabling the cursor placement and the determination of content selected by the user.

[0038] Granting remote access permissions: The mobile phone UE1 can remotely monitor the distance between the guest holding UE2 and the measurable door, and decide when to unlock the door and allow the guest access.

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

[0040] Sidelink positioning: The position of the UE is determined using PC5.

[0041] Positioning: This is a function that detects geographical location and selectable speed (e.g., mobile device).

[0042] Relative position: Estimates the position of the UE relative to other network elements or other UEs.

[0043] The first service may involve 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 or absolute information between the first terminal and certain network equipment (other network elements; which may be understood as network-side equipment, base stations, RSUs, etc.).

[0044] The first terminal can optionally acquire first configuration information related to the first service, and this first configuration information is used to provide the first terminal with the information necessary for the first terminal to use when it performs the first service.

[0045] Selectively, when the first terminal needs to find a second terminal that supports the first service, it can send a first request message to the second terminal. Upon receiving the first request message, the second terminal understands that the first terminal is attempting to find a terminal that supports the first service. In this way, a terminal that supports the first service can find another terminal that supports the first service.

[0046] It is not necessary for the first network to send the first placement information to the first terminal each time the first service is performed, as is optional. The timing of the transmission of the first placement information from the first network to the first terminal is not limited in the embodiments of this application.

[0047] In one embodiment, if the first terminal is registered with the first network, the first network transmits the first placement information to the first terminal.

[0048] In another embodiment, the first terminal can request the acquisition or update of the first placement information at any time.

[0049] In another embodiment, the first arrangement information is arranged on the first terminal in a pre-arranged manner.

[0050] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0051] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0052] The first request message may optionally include one or more of the following (a)-(i):

[0053] (a) First instruction information for indicating that the first request message is to be used for the first service.

[0054] In one embodiment, the first instruction information may have a length of 1 bit. Of these, bit 0 indicates that the first instruction information indicates that the first request message will not be used for the first service, while bit 1 indicates that the first instruction information indicates that the first request message will be used for the first service.

[0055] (b) Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover a second terminal that supports the first service.

[0056] In one embodiment, the first terminal can send third instruction information via a first request message to instruct the second terminal to send second auxiliary information, and the second terminal can send the second auxiliary information to the first terminal after receiving the third instruction information. For example, the second auxiliary information can be sent 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 it.

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

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

[0060] (d) A terminal identifier for the first terminal, which includes at least one of the identity identifier of the first terminal, the device identifier of the first terminal, and the logical identifier of the first terminal.

[0061] Here, the logical identifier of the first terminal refers to a logical identifier that uniquely identifies the first terminal, which is assigned by the network or application server. For example, it may be a combination of specific strings, a Layer 2 identifier (layer-2 ID), a terminal identifier associated with traffic information, or any other terminal identifier managed and / or assigned by the application layer.

[0062] (e) A terminal identifier for the second terminal, which includes at least one of the identity identifier of the second terminal, the device identifier of the second terminal, and the logical identifier of the second terminal.

[0063] Here, the logical identifier of the second terminal refers to a logical identifier that uniquely identifies the second terminal, which is assigned by the network or application server. For example, it may be a combination of specific strings, a Layer 2 identifier (layer-2 ID), a terminal identifier associated with traffic information, or any other terminal identifier managed and / or assigned by the application layer.

[0064] (f) First traffic information for instructing the first terminal on the traffic information requested.

[0065] (g) First auxiliary information to help the first terminal discover 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 existing messages.

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

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

[0072] The first auxiliary information may optionally include algorithm information for the first terminal.

[0073] Optionally, the first auxiliary information may include measurement request information from 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, whether the first auxiliary information contains one or more items, the first terminal or the second terminal can use all or part of the first auxiliary information when making a discovery of a terminal that supports the first service based on the first auxiliary information. Optionally, the algorithm information of the first terminal is the algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameter, algorithm precision, etc.

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

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

[0080] Selectively, 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] Selectable, the first traffic information is: A traffic code corresponding to the first terminal used in at least one of the following steps: 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 use of the first service is permitted for the identified traffic, It may include at least one traffic type corresponding to the first terminal.

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

[0083] Optionally, the first terminal can send its address information to the second terminal.

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

[0085] Selectively, the first terminal can send both its address information and the second terminal's address information to the second terminal.

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

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

[0088] The address information of the first terminal and the address information of the second terminal may be included in the first request message, or they may be outside the first request message and sent together with it.

[0089] Selectively, after the first terminal sends a first request message to the second terminal, if the second terminal decides, based on the first request message, that both the first and second terminals support the first service, the second terminal can directly initiate the associated flow to perform the first service. Thus, after the first terminal sends a first request message to the second terminal and the second terminal initiates the flow associated with the first service, the first terminal can transition to a flow that performs the first service together with the second terminal. It should be noted that the embodiments of this application do not limit how the flow of the first service is performed.

[0090] The method may optionally, after the first terminal sends a first request message to the second terminal, The step further includes the first terminal receiving a first request response message transmitted from the second terminal, which is used to indicate that the second terminal has received the first request message from the first terminal.

[0091] Optionally, the first terminal may, after sending a first request message to the second terminal, receive a first request response message sent from the second terminal, which is used to indicate that the second terminal has received the first request message from the first terminal.

[0092] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Secondary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

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

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

[0096] In one embodiment, the message types of different messages may include a first service discovery request message and 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 instructing traffic information provided from the second terminal.

[0099] (m) A terminal identifier for the first terminal, which includes at least one of the identity identifier of the first terminal, the device identifier of the first terminal, and the logical identifier of the first terminal.

[0100] Here, the logical identifier of the first terminal refers to a logical identifier assigned by the network or application server that uniquely identifies the second terminal. For example, it may be a combination of specific strings, a Layer 2 identifier (layer-2 ID), a terminal identifier associated with traffic information, or any other terminal identifier managed and / or assigned by the application layer.

[0101] (n) A terminal identifier of the second terminal, which includes at least one of the identity identifier of the second terminal, the device identifier of the second terminal, and the logical identifier of the second terminal.

[0102] Here, the logical identifier of the second terminal refers to a logical identifier that uniquely identifies the second terminal, which is assigned by the network or application server. For example, it may be a combination of specific strings, a Layer 2 identifier (layer-2 ID), a terminal identifier associated with traffic information, or any other terminal identifier managed and / or assigned by the application layer.

[0103] (o) Secondary auxiliary information to help the first terminal discover the second terminal that supports the first service.

[0104] (p) Reference signal transmission method.

[0105] (q) Result determination method.

[0106] Selectively, 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] Selectable, the second traffic information is: A traffic code corresponding to the second terminal used in at least one of the following steps: 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 a second terminal to indicate that the identified traffic is permitted to use the first service, It may include at least one traffic type corresponding to the second terminal.

[0108] In one embodiment, the first request response message may include the second traffic information, which may be understood to mean 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 the traffic identified by the traffic identifier.

[0109] Optionally, the first request response message further includes the address information of the first terminal and / or the address information of the second terminal, 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.

[0110] Optionally, the second terminal can send the first terminal's address information to the first terminal.

[0111] Optionally, the second terminal can send its address information to the first terminal.

[0112] The second terminal can optionally send both the first terminal's address information and its own address information to the first terminal.

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

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

[0115] 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 they may be outside the first request response message and sent together with it.

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

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

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

[0119] Optionally, the second auxiliary information may include measurement request information from 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 for the second terminal and measurement request information for the second terminal.

[0123] Whether the second auxiliary information contains one item or multiple items as selectable, the first or second terminal may use all or part of the second auxiliary information when making a discovery of a terminal that supports the first service based on the second auxiliary information.

[0124] Selectively, the algorithm information of the second terminal is the algorithm information used when the second terminal performs the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc.

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

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

[0127] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0128] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes one or more of the following: sending a reference signal triggered by an event.

[0129] The result determination method can be selected as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes at least one determination of the first result by the first terminal and the second terminal.

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

[0131] The result determination method can be selected as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes any one or more of the determinations of 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, for example, the distance between two or more UEs and / or the direction and / or relative position between one UE (i.e., target UE) and the other UE (i.e., reference UE), and optionally, the first result may be a result corresponding to a first service related to a second terminal acquired by a first terminal, and the first result is, The system may include at least one of the following: absolute position information of the second terminal, relative position information of the second terminal and the first terminal, accuracy information, and measurement results of the second positioning reference signal.

[0133] Specifically, the absolute position information of the second terminal includes, for example, Timing Advance (TA), Registration Area (RA), Cell Identifier (ID), Latitude and Longitude, Altitude, Horizontal or Elevation Angle, etc.

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

[0135] The precision information represents the precision information of the first result and may include, for example, at least one of the result dimension information, measurement precision, and error information. Of these, the result dimension information may be, for example, an angle, a meter, a centimeter, etc., the measurement precision may be, for example, high precision, ultra-high precision, or low precision, and the error information may include error precision information and error dimension information. The error precision information may be, for example, high error, low error, or ultra-low error, and the error dimension information may be, for example, an angle, a meter, a centimeter, etc.

[0136] The measurement results represent the measurement results for the second positioning reference signal, such as signal strength or the value of a certain measured quantity calculated using the second positioning reference signal.

[0137] Selectively, Figure 3 is a flowchart 2 of a terminal discovery method provided in an embodiment of the present application, and as shown in Figure 3, the second terminal can determine whether the first terminal and the second terminal can perform a first service based on a first request message (determination of the first result by the second terminal), in which case the first network side can send first placement information (including the parameters and policy placement of UE-1) to the first terminal (e.g., UE-1 in Figure 3), and the second network side can send the second terminal (e.g., UE-2 and / or UE-3 in Figure 3) 2. Deployment information (including the parameter and policy deployment of UE-2 and the parameter and policy deployment of UE-3) can be transmitted, and the first terminal (e.g., UE-1 in Figure 3) can send a first request message (e.g., a distance measurement and positioning request) to the second terminal (e.g., UE-2 and / or UE-3 in Figure 3), and after the second terminal receives the first request message, it can decide that it can perform the first service together with the first terminal based on the first request message and directly start the flow to perform the first service.

[0138] Selectively, Figure 4 is a flowchart 3 of a terminal discovery method provided in an embodiment of the present application, as shown in Figure 4, the first terminal determines whether the second terminal supports the first service (determination of the first result by the first and second terminals), and the second terminal can determine, based on the first request message, that both the first and second terminals support the first service, in which case the first network side can send first placement information (including the parameters and policy placement of UE-1) to one terminal (e.g., UE-1 in Figure 4), the second network side can send second placement information (including the parameters and policy placement of UE-2) to the second terminal (e.g., UE-2 in Figure 4), the first terminal (e.g., UE-1 in Figure 4) can send a first request message (e.g., a distance measurement and positioning request) to the second terminal (e.g., UE-2 in Figure 4), 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. In this way, after sending the first request message response, the first terminal can decide to support the first service based on the first request message response.

[0139] Here, when the second terminal determines that both the first and second terminals support the first service, it can make a decision based on at least one of the following: the first request message, application layer instructions, network-side instructions, and pre-configuration information.

[0140] The first network-side equipment and the second network-side equipment may be the same or different, depending on the user's preference.

[0141] Optionally, after the first terminal receives a first request response message transmitted from the second terminal, the method: The process further includes the step of the first terminal performing a first operation based on the first request response message, the first operation being: The first terminal decides, based on the second instruction information and the first instruction information, that the second terminal will support the first service, 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 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 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 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 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 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] If the first terminal decides, based on the second instruction information and the first instruction information, that the second terminal will support the first service, the first terminal may decide that the second terminal will support the first service if it confirms that the second instruction information and the first instruction information match.

[0143] If the first terminal decides 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 decide 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 and the terminal identifier of the first terminal in the first request message match.

[0144] Optionally, if 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] If the first terminal decides 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 decide 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, if the first terminal decides 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 decide 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, if the first terminal decides 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 decide 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, if the first terminal decides 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 decide 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] Selective matching means that the values ​​may be the same or similar, and similar means that the corresponding values ​​belong to the same interval or that the substantive meaning of the content they refer to is the same.

[0150] The first terminal confirms that the second instruction information and the first instruction information match, making them selectable.

[0151] The second terminal can optionally decide to support 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] 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, the first terminal can decide that the second terminal supports the first service.

[0153] 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 can decide to support the first service.

[0154] The second terminal can decide to support the first service if it 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.

[0155] 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, the second terminal can decide to support the first service.

[0156] 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, the second terminal can decide to support the first service.

[0157] Selectable, 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, The measurement information of the first terminal further includes at least one item, The aforementioned second auxiliary information is, Capability information of the second terminal, Location information of the second device, Address information of the second terminal, Security information for the second terminal, The system further includes at least one item of measurement information from the second terminal.

[0158] Selectively, the first auxiliary information further includes one or more of the following (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 the capability to support a first service, and the capability information includes the capability to support distance measurement and / or calculation, the capability to support direction measurement and / or calculation, the capability to support high-precision distance measurement and / or calculation, the capability to support high-precision direction measurement and / or calculation, and the capability to support calculation of the first service.

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

[0162] For example, the absolute location information of the first terminal includes, for example, TA, registered area RA, cell ID, latitude and longitude, altitude, horizontal direction, and elevation direction.

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

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

[0165] For example, a third terminal other than the first and second terminals, or public infrastructure such as a Road Side Unit, or a public reference system such as a streetlamp, in which the absolute location information is known to the first and second terminals.

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

[0167] For example, this could include 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, the encryption key and / or security parameters of the first terminal.

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

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

[0172] Selectively, the second auxiliary information further includes 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 the capability to support the first service, and the capability information includes the capability to support distance measurement and / or calculation, the capability to support direction measurement and / or calculation, the capability to support high-precision distance measurement and / or calculation, the capability to support high-precision direction measurement and / or calculation, and the capability to support calculation of the first service.

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

[0176] For example, the absolute location information of the second terminal includes, for example, TA, registered area RA, cell ID, latitude and longitude, altitude, horizontal direction, and elevation direction.

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

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

[0179] For example, a third terminal other than the first and second terminals, or public infrastructure such as a Road Side Unit, or a public reference system such as a streetlamp, in which the absolute location information is known to the first and second terminals.

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

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

[0182] (s4) Security information for the second terminal.

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

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

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

[0186] Selectable, the first arrangement information is The effective time of the first arrangement information, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, First traffic information for instructing the first terminal on the traffic information requested, A terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Security information of the first terminal representing security parameters related to the first service, Algorithm information of the first terminal for instructing the algorithm necessary to use the first service, Reference signal information of the first terminal for indicating the reference signals necessary to use the first service, Measurement request information from the first terminal, First permission instruction information to permit the transmission of a reference signal by the first terminal, It includes at least one second authorization instruction piece for allowing the first terminal to determine the result of a reference signal.

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

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

[0189] (t1) The effective time of the first arrangement information.

[0190] Selectively, the effective time represents the effective time of the first arrangement information.

[0191] Selectively, when the effective period ends, the first arrangement information becomes invalid.

[0192] (t2) First authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is provided with services from a wireless access network.

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

[0194] (t21) The first terminal is permitted to use the discovery service associated with the first service using model B, where model B represents the discovery scheme by which the second terminal sends the first request response message based on the first request message.

[0195] (t22) The first terminal is permitted to use the discovery service associated with 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) The first authorization list of the first terminal to indicate the PLMN list to be discovered when the first terminal is provided with services from the wireless access network.

[0197] Optionally, the first authorization list of the first terminal may be a PLMN list that permits the use of the first service when the service is provided from the RAN, and the said PLMN list that permits the use of the first service includes at least one of the following (t31)-(t33).

[0198] (t31) A list of PLMNs that allows a first terminal to make discoveries using announcing. Herein, the Public Land Mobile Network (PLMN) list contains at least one PLMN ID.

[0199] (t32) A PLMN list that allows the first terminal to make discoveries using model A monitoring. Herein, the PLMN list contains at least one PLMN ID.

[0200] (t33) A PLMN list that allows the first terminal to perform discoveries using the model B discoverer operation. Herein, the PLMN list contains at least one PLMN ID.

[0201] (t4) Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network.

[0202] Optionally, the second authorization information of the first terminal may indicate whether or not it is permitted to use a discovery service related to the first service when it is not provided with service from the radio access network, and whether or not it is permitted to use a discovery service related to the first service as described above may include at least one of the following (t41)-(t42).

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

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

[0205] (t5) First traffic information for instructing the first terminal on the traffic information requested.

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

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

[0208] For example, the encryption key and / or security parameters of the first terminal.

[0209] (t8) Algorithm information for the first terminal to instruct the algorithm necessary to use the first service.

[0210] It should be explained that, optionally, the algorithm information of the first terminal is the algorithm information used by the first terminal when it performs the first service, and that the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc., and that the algorithm information may also be referred to as method information.

[0211] (t9) Reference signal information for the first terminal to indicate the reference signals necessary to use the first service.

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

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

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

[0215] (t11) First permission instruction information to allow the first terminal to transmit a reference signal.

[0216] (t12) Second authorization instruction information to allow the first terminal to determine the reference signal result.

[0217] Selectively, the method is The first terminal further includes the step of determining a reference signal transmission method based on the first permission instruction information.

[0218] Selectively, the first terminal, based on the first permission instruction information, uses the following as the reference signal transmission method: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, You can choose one or more of the following options: sending a reference signal triggered by an event.

[0219] Selectively, the method is The first terminal further includes the step of determining a result determination method based on the second permission instruction information.

[0220] Selectively, the first terminal, based on the second permission instruction information, determines the result as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, Any one or more of the determinations of the first result by the first terminal and the second terminal can be determined.

[0221] The method may optionally, after the first terminal sends a first request message to the second terminal, The process further includes the first terminal sending a second request message to request the establishment of a PC5 connection with the second terminal.

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

[0223] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0224] Figure 5 is a flowchart 4 of the terminal discovery method provided in the embodiment of this application. Step 500 involves the second terminal acquiring second location information related to the first service, which is a terminal discovery-related service. The process includes step 510, in which the second terminal receives a first request message transmitted from the first terminal, which is used to discover the second terminal that supports the first service.

[0225] The first service may be an attempt by the first terminal to obtain relative information (e.g., relative position) between the first terminal and other terminals, or absolute information (e.g., geographical location, velocity), or it may be an attempt by the first terminal to obtain relative or absolute information between the first terminal and other network equipment (which may be understood as network-side equipment, base stations, RSUs, etc.).

[0226] The second terminal can optionally acquire second configuration information related to the first service, and this second configuration information is used to provide the second terminal with the information necessary for the second terminal to use when it performs the first service.

[0227] Selectively, when the first terminal needs to find a second terminal that supports the first service, it can send a first request message to the second terminal. Upon receiving the first request message, the second terminal understands that the first terminal is attempting to find a terminal that supports the first service. In this way, a terminal that supports the first service can find another terminal that supports the first service.

[0228] It is not necessary for the second network to send the second placement information to the second terminal each time the first service is performed, as is optional. The timing of the transmission of the second placement information from the second network to the second terminal is not limited in the embodiments of this application.

[0229] In one embodiment, if the second terminal is registered with the second network, the second network transmits the second placement information to the second terminal.

[0230] In another embodiment, the second terminal can request the acquisition or update of the second configuration information at any time.

[0231] In another embodiment, the second arrangement information is arranged on the second terminal in a pre-arranged manner.

[0232] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0233] The method may optionally take the following steps: after the second terminal receives a first request message transmitted from the first terminal, The process further includes the second terminal sending a third request message to request the establishment of a PC5 connection with the first terminal.

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

[0235] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0236] The first request message may optionally include one or more of the following (a)-(i):

[0237] (a) First instruction information for indicating that the first request message is to be used for the first service.

[0238] In one embodiment, the first instruction information may have a length of 1 bit. Of these, bit 0 indicates that the first instruction information indicates that the first request message will not be used for the first service, while bit 1 indicates that the first instruction information indicates that the first request message will be used for the first service.

[0239] (b) Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover a second terminal that supports 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. After receiving the third instruction information, the second terminal can transmit the second auxiliary information to the first terminal and can transmit the second auxiliary information to the first terminal via a first request response message. After receiving the second auxiliary information, the first terminal can determine whether the second terminal supports the first service based on the second auxiliary information.

[0241] (c) A first message type for instructing the message type of the first request message.

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

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

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

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

[0247] (f) First traffic information for instructing the traffic information requested by the first terminal.

[0248] (g) First auxiliary information for assisting the first terminal in discovering a second terminal that supports a 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. That is, it is a new message different from the existing message.

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

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

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

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

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

[0258] Optionally, the first auxiliary information may include the reference signal information of the first terminal and the measurement requirement 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, whether the first auxiliary information contains one or more items, the first terminal or the second terminal can use all or part of the first auxiliary information when making a discovery of a terminal that supports the first service based on the first auxiliary information. Optionally, the algorithm information of the first terminal is the algorithm information used by the first terminal when executing the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameter, algorithm precision, etc.

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

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

[0263] Selectively, 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] Selectable, the first traffic information is: A traffic code corresponding to the first terminal used in at least one of the following steps: 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 use of the first service is permitted for the identified traffic, It may include at least one traffic type corresponding to the first terminal.

[0265] Optionally, the first request message further includes the address information of the first terminal and / or the 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 send the address information of the first terminal to the second terminal.

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

[0268] Optionally, the first terminal can send the address information of the first terminal and the address information of the second terminal to 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 transmitted 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 transmitted 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 transmitted along with the first request message.

[0272] Selectively, after the first terminal sends a first request message to the second terminal, if the second terminal decides, based on the first request message, that both the first and second terminals support the first service, the second terminal can directly initiate the associated flow that executes the first service. Thus, after the first terminal sends a first request message to the second terminal and the second terminal initiates the flow associated with the first service, the first terminal can transition to a flow that executes the first service together with the second terminal.

[0273] Selectable, the second arrangement information is The effective time of the second arrangement information, First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, The first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, Second traffic information for instructing the traffic information provided by the second terminal, A terminal identifier of a second terminal, which includes at least one of a user identifier, a device identifier, and a logical identifier. Security information of the second terminal indicating security parameters related to the first service, Algorithm information for a second terminal to instruct the algorithm necessary to use the first service, Reference signal information of a second terminal for indicating the reference signals necessary to use the first service, Measurement request information from the second terminal, Third permission instruction information to allow the transmission of a reference signal by the second terminal, It includes at least one fourth authorization instruction for allowing the second terminal to determine the result of the reference signal.

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

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

[0276] (u1) The effective time of the second arrangement information.

[0277] Selectively, the effective time represents the effective time of the second arrangement information.

[0278] Selectively, when the validity period ends, the second arrangement information becomes invalid.

[0279] (u2) First authorization information of the second terminal to indicate the type of discovery method permitted when the second terminal is provided with services from the wireless access network.

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

[0281] (u21) The second terminal is permitted to use a discovery service associated with the first service using model B, where model B represents a discovery scheme in which the second terminal sends 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 and second terminals support the first service.

[0283] (u3) The first authorization list of the second terminal to indicate the PLMN list to be discovered when the second terminal is receiving services from the wireless access network.

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

[0285] (u31) A PLMN list that allows a second terminal to make discoveries using announcing. The PLMN list contains at least one PLMN ID.

[0286] (u32) A PLMN list that allows a second terminal to perform detection using model A monitoring, wherein the PLMN list contains at least one PLMN ID.

[0287] (u33) A PLMN list that allows a second terminal to perform discoveries using the model B discoverer operation. Herein, the PLMN list contains at least one PLMN ID.

[0288] (u4) Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network.

[0289] Optionally, the second authorization information of the second terminal may indicate whether or not it is permitted to use a discovery service related to the first service when it is not provided with service from the wireless access network, and whether or not it is permitted to use a discovery service related to the first service as described above may include at least one of the following (u41)-(u42).

[0290] (u41) You are permitted to use the discovery service related to the first service using model A.

[0291] (u42) You are permitted to use the discovery service related to the first service using model B.

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

[0293] (u6) A terminal identifier for the second terminal, which includes at least one of the following: the identity identifier of the second terminal, the device identifier of the second terminal, or the logical identifier of the second terminal. For example, one or more of the following: the SUCI of the second terminal, the GUTI of the second terminal, the IMSI of the second terminal, the PEI of the second terminal, the IMEI of the second terminal, the SUPI of the second terminal, the TMSI of the second terminal, the GPSI of the second terminal, or the 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, the encryption key of the second terminal and / or the security parameters of the first terminal.

[0296] (u8) Algorithm information for the second terminal to instruct the algorithm necessary to use the first service.

[0297] Selectively, the algorithm information of the second terminal is the algorithm information used when the second terminal performs the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc.

[0298] (u9) Reference signal information for a second terminal to indicate the reference signals necessary to use the first service.

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

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

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

[0302] (u11) Third authorization instruction information to allow the second terminal to transmit a reference signal.

[0303] (u12) A fourth authorization instruction to allow the second terminal to determine the reference signal result.

[0304] Selectively, the method is The second terminal further includes the step of determining a reference signal transmission method based on the third permission instruction information.

[0305] Selectively, the second terminal, based on the third permission instruction information, uses the following as the reference signal transmission method: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, You can choose one or more of the following options: sending a reference signal triggered by an event.

[0306] Selectively, the method is The second terminal further includes the step of determining a result determination method based on the fourth permission instruction information.

[0307] The result determination method, which is optionally determined by the second terminal based on the fourth authorization instruction information, is: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes at least one determination of the first result by the first terminal and the second terminal.

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

[0309] Selectively, the method is The process further includes the step of the second terminal performing a second operation based on the first request message, the second operation being: The second terminal decides to provide the first service based on the second traffic information in the second deployment information and the first traffic information in the first request message, The second terminal decides to provide the first service based on the reference signal information of the second terminal in the second placement information and the reference signal information of the first terminal in the first request message, The second terminal decides to provide the first service based on the algorithm information of the second terminal in the second placement information and the algorithm information of the first terminal in the first request message, The second terminal decides to provide the first service based on the measurement request information of the second terminal in the second placement information and the measurement request information of the first terminal in the first request message, The second terminal decides to provide the first service based on the third permission instruction information in the second placement information and the reference signal transmission method in the first request message, The second terminal determines to provide the first service based on the fourth permission instruction information in the second placement information and the result determination method in the first request message, and includes at least one of these.

[0310] The second terminal can optionally determine, based on the first request message, whether the first and second terminals can perform the first service. In this case, after receiving the first request message, the second terminal can decide, based on the first request message, that it can perform the first service together with the first terminal. In this way, the flow for performing the first service can be directly initiated.

[0311] Optionally, when the second terminal determines the first result, it may perform a second operation based on the first request message, the second operation being: The second terminal decides to provide the first service based on the second traffic information in the second deployment information and the first traffic information in the first request message, The second terminal decides to provide the first service based on the reference signal information of the second terminal in the second placement information and the reference signal information of the first terminal in the first request message, The second terminal decides to provide the first service based on the algorithm information of the second terminal in the second placement information and the algorithm information of the first terminal in the first request message, The second terminal decides to provide the first service based on the measurement request information of the second terminal in the second placement information and the measurement request information of the first terminal in the first request message, The second terminal decides to provide the first service based on the third permission instruction information in the second placement information and the reference signal transmission method in the first request message, The second terminal determines to provide the first service based on the fourth permission instruction information in the second placement information and the result determination method in the first request message, and includes at least one of these.

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

[0313] Here, the second terminal may determine that the first and second terminals can perform the first service based on the reference signal information of the second terminal in the second placement information and the reference signal information of the first terminal in the first request message. In this case, the second terminal may determine that the first and second terminals can perform the first service if it determines that the reference signal information of the second terminal in the second placement information and the reference signal information of the first terminal in the first request message match.

[0314] Here, the second terminal may determine that the first and second terminals can perform the first service based on the algorithm information of the second terminal in the second deployment information and the algorithm information of the first terminal in the first request message. In this case, the second terminal may determine that the first and second terminals can perform the first service if it determines that the algorithm information of the second terminal in the second deployment information and the algorithm information of the first terminal in the first request message match.

[0315] Here, the second terminal may determine that the first and second terminals can perform the first service based on the measurement request information of the second terminal in the second deployment information and the measurement request information of the first terminal in the first request message. In this case, the second terminal may determine that the first and second terminals can perform the first service if it determines that the measurement request information of the second terminal in the second deployment information and the measurement request information of the first terminal in the first request message match.

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

[0317] Here, the second terminal may determine that the first and second terminals can perform the first service based on the fourth authorization instruction information in the second deployment information and the result determination method in the first request message, if the second terminal determines that the fourth authorization instruction information in the second deployment information and the result determination method in the first request message match.

[0318] Selective matching means that the values ​​may be the same or similar, and similar means that the corresponding values ​​belong to the same interval or that the substantive meaning of the content they refer to is the same.

[0319] Selectively, the method is The second terminal further includes sending a first request response message to the first terminal to indicate that the second terminal has received the first request message from the first terminal.

[0320] The first terminal can optionally 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 the first request response message sent from the second terminal, and after receiving the first request message, the second terminal simply determines that the message type of the first request message is a first service discovery request message and directly sends the first request message response.

[0321] The first terminal can optionally determine whether the second terminal supports the first service, and the second terminal can determine, based on the first request message, that both the first and second terminals can perform the first service. In this case, after receiving the first request message, the second terminal, based on the first request message, determines that both the first and second terminals can perform the first service and sends a first request message response. 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.

[0322] Here, when the second terminal determines that both the first and second terminals support the first service, it can make a decision based on at least one of the following: the first request message, application layer instructions, network-side instructions, and pre-configuration information.

[0323] The step of the second terminal optionally sending a first request response message to the first terminal is: The process includes the step of the second terminal transmitting second auxiliary information in the first request response message based on third instruction information.

[0324] If the first request message contains third instruction information, the second terminal may optionally send second auxiliary information based on the third instruction information.

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

[0326] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Second auxiliary information of the second terminal to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

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

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

[0330] In one embodiment, the message types of different messages may include a first service discovery request message and 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 instructing traffic information provided from the second terminal.

[0333] (m) A terminal identifier for the first terminal, which includes at least one of the identity identifier of the first terminal, the device identifier of the first terminal, and the logical identifier of the first terminal.

[0334] (n) A terminal identifier of the second terminal, which includes at least one of the identity identifier of the second terminal, the device identifier of the second terminal, and the logical identifier of the second terminal.

[0335] (o) Secondary auxiliary information to help the first terminal discover the 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 the address information of the first terminal and / or the address information of the second terminal, 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.

[0339] Optionally, the second terminal can send the first terminal's address information to the first terminal.

[0340] Optionally, the second terminal can send its address information to the first terminal.

[0341] The second terminal can optionally send both the first terminal's address information and its own address information to the first terminal.

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

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

[0344] 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 they may be outside the first request response message and sent together with it.

[0345] Selectively, 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] Selectable, the second traffic information is: A traffic code corresponding to the second terminal used in at least one of the following steps: 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 a second terminal to indicate that the identified traffic is permitted to use the first service, It may include at least one traffic type corresponding to the second terminal.

[0347] In one embodiment, the first request response message includes the second traffic information. This may be understood as enabling the second terminal to 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 the traffic identified by the traffic identifier.

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

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

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

[0351] Optionally, the second auxiliary information may include measurement request information from 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 for the second terminal and measurement request information for the second terminal.

[0355] Whether the second auxiliary information contains one item or multiple items as selectable, the first or second terminal may use all or part of the second auxiliary information when making a discovery of a terminal that supports the first service based on the second auxiliary information.

[0356] Selectively, the algorithm information of the second terminal is the algorithm information used when the second terminal performs the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc.

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

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

[0359] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0360] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes one or more of the following: sending a reference signal triggered by an event.

[0361] The result determination method can be selected as follows: This includes at least one of the following: determining the first result by the first terminal, determining the first result by the second terminal, or determining the first result by both the first and second terminals.

[0362] The result determination method can be selected as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes any one or more of the determinations of 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, if the first terminal sets the reference signal transmission method to "transmission of a reference signal by the first terminal" in the first request message, the second terminal can infer after receiving the first request message that the "result determination method" for the first service is "determination of the first result by the second terminal".

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

[0365] Specifically, the absolute location information of the second terminal includes, for example, TA, registered area RA, cell ID, latitude and longitude, altitude, horizontal direction angle or elevation direction angle, etc.

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

[0367] The accuracy information represents the accuracy information of the first result and may include, for example, at least one of result dimension information, measurement accuracy, and error information. Of these, the result dimension information may be, for example, angle, meter, centimeter, etc., the measurement accuracy may be, for example, high accuracy, ultra-high accuracy, low accuracy, and the error information may include error accuracy information and error dimension information. The error accuracy information may be, for example, high error, low error, ultra-low error, and the error dimension information may be, for example, angle, meter, centimeter, etc.

[0368] The measurement results represent the measurement results for the second positioning reference signal, such as signal strength or the value of a certain measured quantity calculated using the second positioning reference signal.

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

[0370] Selectively, after receiving the first request message, the second terminal may, based on the first request message, decide that the first terminal will support the first service and the second terminal will also support the first service, then send a first request message response. After receiving the first request message response, the first terminal may, based on the first request message response, decide that the second terminal will also support the first service.

[0371] Here, when the second terminal determines that both the first and second terminals support the first service, it can make a decision based on at least one of the following: the first request message, application layer instruction information, network-side instruction information, and pre-configuration information.

[0372] The step of the second terminal sending a first request response message to the first terminal based on the first information, when the first information optionally includes the application layer instruction information, is: The second terminal transmits a first request response message to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the application layer instruction 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 application layer instruction information, The second terminal sends a first request response message to the first terminal based on the first traffic information and the traffic information included in the application layer instruction information in the first request message. The process includes at least one of the following steps: 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.

[0373] Selectable application layer instruction information includes: Reference signal transmission method, result determination method, Traffic information, It may include at least one terminal identifier.

[0374] If the second terminal chooses to send a first request response message to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the application layer instruction information, the second terminal may send the first request response message to the first terminal only when it determines that the reference signal transmission method in the first request message and the reference signal transmission method included in the application layer instruction information match.

[0375] If 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 send the first request response message to the first terminal only if it 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] If 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 instruction information, the second terminal may send the first request response message to the first terminal only when it determines that the first traffic information in the first request message and the traffic information included in the application layer instruction 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 send the first request response message to the first terminal only when it determines that the first terminal identifier in the first request message and the terminal identifier included in the application layer instruction information match.

[0378] Selective matching means that the values ​​may be the same or similar, and similar means that the corresponding values ​​belong to the same interval or that the substantive meaning of the content they refer to is the same.

[0379] The step of the second terminal sending a first request response message to the first terminal based on the first information, when the first information optionally includes the pre-configuration information, is: The second terminal transmits a first request response message to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method 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, The second terminal sends 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-configuration information, The second terminal sends a first request response message to the first terminal based on the first traffic information and the traffic information included in the first request message and the pre-configuration information, The second terminal sends 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 process includes at least one of the following steps: the second terminal sends 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-configuration information.

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

[0381] 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 pre-configuration information, the second terminal may send the first request response message to the first terminal only if it determines that the result determination method in the first request message and the result determination method included in the pre-configuration information match.

[0382] When the second terminal sends 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-configuration information, the second terminal may send the first request response message to the first terminal only when it determines that the terminal identifier of the first terminal in the first request message and the terminal identifier of the first terminal included in the pre-configuration information match.

[0383] 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 pre-configuration information, the second terminal may send the first request response message to the first terminal only when it 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 sends 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 send the first request response message to the first terminal only when it determines that 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 match.

[0385] When the second terminal sends 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-configuration information, the second terminal may send the first request response message to the first terminal only when it 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-configuration information.

[0386] The pre-configuration information can be selected. Reference signal transmission method, It may include at least one method for determining the outcome.

[0387] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0388] Figure 6 is a flowchart 5 of the terminal discovery method provided in an embodiment of this application, and as shown in Figure 6, the method is The first network side includes step 600 of transmitting first placement information used in the first service, which includes a ranging service and / or a side-link positioning service, to the first terminal.

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

[0390] It is not necessary for the first network to send the first placement information to the first terminal each time the first service is performed, as is optional. The timing of the transmission of the first placement information from the first network to the first terminal is not limited in the embodiments of this application.

[0391] In one embodiment, if the first terminal is registered with the first network, the first network transmits the first placement information to the first terminal.

[0392] In another embodiment, the first terminal can request the acquisition or update of the first placement information at any time.

[0393] In another embodiment, the first arrangement information is arranged on the first terminal in a pre-arranged manner.

[0394] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0395] Selectable, the first arrangement information is The effective time of the first arrangement information, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, First traffic information for instructing the first terminal on the traffic information requested, A terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Security information of the first terminal representing security parameters related to the first service, Algorithm information of the first terminal for instructing the algorithm necessary to use the first service, Reference signal information of the first terminal for indicating the reference signals necessary to use the first service, Measurement request information from the first terminal, First permission instruction information to permit the transmission of a reference signal by the first terminal, It includes at least one second authorization instruction piece for allowing the first terminal to determine the result of a reference signal.

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

[0397] (t1) The effective time of the first arrangement information.

[0398] Selectively, the effective time represents the effective time of the first arrangement information.

[0399] Selectively, when the effective period ends, the first arrangement information becomes invalid.

[0400] (t2) First authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is provided with services from a wireless access network.

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

[0402] (t21) The first terminal is permitted to use the discovery service associated with the first service using model B, where model B represents the discovery scheme by which the second terminal sends the first request response message based on the first request message.

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

[0404] (t3) The first authorization list of the first terminal to indicate the PLMN list to be discovered when the first terminal is provided with services from the wireless access network.

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

[0406] (t31) A PLMN list that allows a first terminal to make discoveries using announcing. The PLMN list contains at least one PLMN ID.

[0407] (t32) A PLMN list that allows the first terminal to make discoveries using model A monitoring. Herein, the PLMN list contains at least one PLMN ID.

[0408] (t33) A PLMN list that allows the first terminal to perform discoveries using the model B discoverer operation. Herein, the PLMN list contains at least one PLMN ID.

[0409] (t4) Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network.

[0410] Optionally, the second authorization information of the first terminal may indicate whether or not it is permitted to use a discovery service related to the first service when it is not provided with service from the radio access network, and whether or not it is permitted to use a discovery service related to the first service as described above may include at least one of the following (t41)-(t42).

[0411] (t41) Model A is permitted to be used to use the discovery service related to the first service.

[0412] (t42) You are permitted to use the discovery service related to the first service using model B.

[0413] (t5) First traffic information for instructing the first terminal on the traffic information requested.

[0414] (t6) Terminal identifier of the first terminal, which includes at least one of the identity identifier of the first terminal, the device identifier of the first terminal, or the logical identifier of the first terminal. For example, 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, or 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, the encryption key and / or security parameters of the first terminal.

[0417] (t8) Algorithm information for the first terminal to instruct the algorithm necessary to use the first service.

[0418] It should be explained that, optionally, the algorithm information of the first terminal is the algorithm information used by the first terminal when it performs the first service, and that the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc., and that the algorithm information may also be referred to as method information.

[0419] (t9) Reference signal information for the first terminal to indicate the reference signals necessary to use the first service.

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

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

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

[0423] (t11) First permission instruction information to allow the first terminal to transmit a reference signal.

[0424] (t12) Second authorization instruction information to allow the first terminal to determine the reference signal result.

[0425] Selectively, 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] Selectable, the first traffic information is: A traffic code corresponding to the first terminal used in at least one of the following steps: 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 use of the first service is permitted for the identified traffic, It may include at least one traffic type corresponding to the first terminal.

[0427] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0428] Figure 7 is a flowchart 6 of the terminal discovery method provided in an embodiment of this application, and as shown in Figure 7, the method is The second network side includes step 700 of transmitting second placement information used in the first service, which includes a ranging service and / or a side-link positioning service, to the second terminal.

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

[0430] It is not necessary for the second network to send the second placement information to the second terminal each time the first service is performed, as is optional. The timing of the transmission of the second placement information from the second network to the second terminal is not limited in the embodiments of this application.

[0431] In one embodiment, if the second terminal is registered with the second network, the second network transmits the second placement information to the second terminal.

[0432] In another embodiment, the second terminal can request the acquisition or update of the second configuration information at any time.

[0433] In another embodiment, the second arrangement information is arranged on the second terminal in a pre-arranged manner.

[0434] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0435] Selectable, the second arrangement information is The effective time of the second arrangement information, First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, The first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, Second traffic information for instructing the traffic information provided by the second terminal, A terminal identifier of a second terminal, which includes at least one of a user identifier, a device identifier, and a logical identifier. Security information of the second terminal indicating security parameters related to the first service, Algorithm information for a second terminal to instruct the algorithm necessary to use the first service, Reference signal information of a second terminal for indicating the reference signals necessary to use the first service, Measurement request information from the second terminal, Third permission instruction information to allow the transmission of a reference signal by the second terminal, It includes at least one fourth authorization instruction for allowing the second terminal to determine the result of the reference signal.

[0436] Selectively, the second placement information may include one or more of the following (u1)-(u12).

[0437] (u1) The effective time of the second arrangement information.

[0438] Selectively, the effective time represents the effective time of the second arrangement information.

[0439] Selectively, when the validity period ends, the second arrangement information becomes invalid.

[0440] (u2) First authorization information of the second terminal to indicate the type of discovery method permitted when the second terminal is provided with services from the wireless access network.

[0441] Optionally, the first authorization information of the second terminal may indicate whether or not it is authorized to use a discovery service related to the first service when served by the radio access network RAN, and whether or not it is authorized to use a discovery service related to the first service as described above 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 sends 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 and second terminals support the first service.

[0444] (u3) The first authorization list of the second terminal to indicate the PLMN list to be discovered when the second terminal is receiving services from the wireless access network.

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

[0446] (u31) A PLMN list that allows a second terminal to make discoveries using announcing. The PLMN list contains at least one PLMN ID.

[0447] (u32) A PLMN list that allows a second terminal to perform detection using model A monitoring, wherein the PLMN list contains at least one PLMN ID.

[0448] (u33) A PLMN list that allows a second terminal to perform discoveries using the model B discoverer operation. Herein, the PLMN list contains at least one PLMN ID.

[0449] (u4) Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network.

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

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

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

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

[0454] (u6) A terminal identifier for the second terminal, which includes at least one of the following: the identity identifier of the second terminal, the device identifier of the second terminal, or the logical identifier of the second terminal. For example, one or more of the following: the SUCI of the second terminal, the GUTI of the second terminal, the IMSI of the second terminal, the PEI of the second terminal, the IMEI of the second terminal, the SUPI of the second terminal, the TMSI of the second terminal, the GPSI of the second terminal, or the 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, the encryption key of the second terminal and / or the security parameters of the first terminal.

[0457] (u8) Algorithm information for the second terminal to instruct the algorithm necessary to use the first service.

[0458] Selectively, the algorithm information of the second terminal is the algorithm information used when the second terminal performs the first service, and the algorithm information includes at least one of the following: algorithm name, algorithm identifier, algorithm parameters, algorithm precision, etc. It should be explained that the algorithm information may also be referred to as method information.

[0459] (u9) Reference signal information for a second terminal to indicate the reference signals necessary to use the first service.

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

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

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

[0463] (u11) Third authorization instruction information to allow the second terminal to transmit a reference signal.

[0464] (u12) A fourth authorization instruction to allow the second terminal to determine the reference signal result.

[0465] Selectively, 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] Selectable, the second traffic information is: A traffic code corresponding to the second terminal used in at least one of the following steps: 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 a second terminal to indicate that the identified traffic is permitted to use the first service, It may include at least one traffic type corresponding to the second terminal.

[0467] In one embodiment, the first request response message may include the second traffic information, which may be understood to mean 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 the traffic identified by the traffic identifier.

[0468] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0469] In the embodiment of this application, the terminal discovery method may be implemented by a terminal discovery device. The terminal discovery device provided in the embodiment of this application will be described as an example in which the terminal discovery device performs the terminal discovery method.

[0470] Figure 8 is a schematic diagram of the configuration of the terminal detection device provided in the embodiment of this application, and as shown in Figure 8, the device 800 is A first acquisition module 801 used to acquire first placement information related to a first service including a ranging service and / or a side-link positioning service, The system includes a first transmission module 802 used to send a first request message to a second terminal for requesting discovery of the second terminal that supports the first service.

[0471] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0472] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

[0474] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, or The address information of the first terminal and / or the address information of the second terminal are transmitted along with the first request message.

[0476] Selectively, the device, The system further includes a first receiving module used to receive a first request response message, which is sent from the second terminal after the first request message has been sent to the second terminal, and which is used to indicate that the second terminal has received the first request message from the first terminal.

[0477] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Secondary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0478] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, 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.

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

[0481] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0482] The result determination method can be selected as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes at least one determination of the first result by the first terminal and the second terminal.

[0483] Selectively, the device, The system further comprises a first decision module used to perform a first operation based on the first request response message after receiving a first request response message transmitted from the second terminal, wherein the first operation is: Based on the second instruction information and the first instruction information, the second terminal decides to support 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, it is determined 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, it is determined 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, it is determined 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, it is determined 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, it is determined that the second terminal supports the first service, This includes at least one of the following: 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] Selectable, 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, The measurement information of the first terminal further includes at least one item, The aforementioned second auxiliary information is, Capability information of the second terminal, Location information of the second device, Address information of the second terminal, Security information for the second terminal, The system further includes at least one item of measurement information from the second terminal.

[0485] Selectable, the first arrangement information is The effective time of the first arrangement information, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, First traffic information for instructing the first terminal on the traffic information requested, A terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Security information of the first terminal representing security parameters related to the first service, Algorithm information of the first terminal for instructing the algorithm necessary to use the first service, Reference signal information of the first terminal for indicating the reference signals necessary to use the first service, Measurement request information from the first terminal, First permission instruction information to permit the transmission of a reference signal by the first terminal, It includes at least one second authorization instruction piece for allowing the first terminal to determine the result of a reference signal.

[0486] Selectively, the device, The system further comprises a second determination module used to determine a reference signal transmission method based on the first permission instruction information.

[0487] Selectively, the device, The system further comprises a third decision module used to determine the result determination method based on the second permission instruction information.

[0488] Selectively, the device, The system further includes a second transmission module used to send a second request message to request the establishment of a PC5 connection with the second terminal, after sending a first request message to the second terminal.

[0489] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0490] The terminal discovery device in the embodiments of this application may be an electronic device, such as an electronic device equipped with an operating system, or a component of an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other device. Exemplarily, a terminal may include, but is not limited to, the types of terminals 11 listed above. Other devices may be a server, network attached storage (NAS), etc. The embodiments of this application are not specifically limited.

[0491] The terminal detection device provided in the embodiment of this application can perform each step realized in the embodiment of the method shown in Figures 2-4 and achieve the same technical effects, and a detailed explanation is omitted here to avoid repetition.

[0492] Figure 9 is a schematic diagram 2 of the configuration of the terminal detection device provided in the embodiment of this application, and as shown in Figure 9, the device 900 is A second acquisition module 901 is used to acquire second location information related to the first service, which is a terminal discovery-related service, The system includes a second receiving module 902 used to receive a first request message transmitted from a first terminal, which is used for discovery of a second terminal that supports the first service.

[0493] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0494] Selectively, the device, The system further includes a third transmission module used to send a third request message requesting the establishment of a PC5 connection with the first terminal after receiving a first request message sent from the first terminal.

[0495] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

[0497] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, or The address information of the first terminal and / or the address information of the second terminal are transmitted along with the first request message.

[0499] Selectable, the second arrangement information is The effective time of the second arrangement information, First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, The first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, Second traffic information for instructing the traffic information provided by the second terminal, A terminal identifier of a second terminal, which includes at least one of a user identifier, a device identifier, and a logical identifier. Security information of the second terminal indicating security parameters related to the first service, Algorithm information for a second terminal to instruct the algorithm necessary to use the first service, Reference signal information of a second terminal for indicating the reference signals necessary to use the first service, Measurement request information from the second terminal, Third permission instruction information to allow the transmission of a reference signal by the second terminal, It includes at least one fourth authorization instruction for allowing the second terminal to determine the result of the reference signal.

[0500] Selectively, the device, The system further comprises a fourth determination module used to determine the reference signal transmission method based on the third permission instruction information.

[0501] Selectively, the device, The system further comprises a fifth decision module used to determine the result determination method based on the fourth permission instruction information.

[0502] Selectively, the device, The system further comprises a sixth decision module used to perform a second operation based on the first request message, the second operation being: Based on the second traffic information in the second deployment information and the first traffic information in the first request message, the second terminal decides to provide the first service, Based on the reference signal information of the second terminal in the second arrangement information and the reference signal information of the first terminal in the first request message, it is determined that the second terminal will provide the first service. Based on the algorithm information of the second terminal in the second placement information and the algorithm information of the first terminal in the first request message, it is determined that the second terminal will provide 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, it is determined that the second terminal will provide the first service, Based on the third permission instruction information in the second placement information and the reference signal transmission method in the first request message, the second terminal decides to provide the first service, This includes at least one of the following: the second terminal deciding to provide the first service based on the fourth permission instruction information in the second placement information and the result determination method in the first request message.

[0503] Selectively, the device, The system further includes a fourth transmission module used to send a first request response message to the first terminal indicating that the second terminal has received the first request message from the first terminal.

[0504] Selectively, the fourth transmission module is, specifically, Based on the third instruction information, it is used to transmit the second auxiliary information contained in the first request response message.

[0505] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Second auxiliary information of the second terminal to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0506] Optionally, the first request response message further includes the address information of the first terminal and / or the address information of the second terminal, 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.

[0507] Selectively, 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] Selectively, the second auxiliary information includes at least one of the reference signal information of the second terminal, the algorithm information of the second terminal, and the measurement request information of the second terminal.

[0509] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0510] The result determination method can be selected as follows: This includes at least one of the following: determining the first result by the first terminal, determining the first result by the second terminal, or determining the first result by both the first and second terminals.

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

[0512] If the first information includes the application layer instruction information, the fourth transmission module, specifically, A first request response message is sent to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the application layer instruction information. A first request response message is sent 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. Based on the first traffic information and the traffic information included in the application layer instruction information in the first request message, a first request response message is sent to the first terminal. It is used in at least one of the following: sending 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.

[0513] If the first information includes the pre-configuration information, the fourth transmission module, specifically, A first request response message is sent to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the pre-configuration information. A first request response message is sent 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 first request response message is sent 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-configuration information. Based on the first traffic information in the first request message and the traffic information included in the pre-configuration information, a first request response message is sent 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, a first request response message is sent to the first terminal. It is used in at least one of the following: sending 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-configuration information.

[0514] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0515] The terminal discovery device in the embodiments of this application may be an electronic device, such as an electronic device equipped with an operating system, or a component of an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other device. Exemplarily, a terminal may include, but is not limited to, the types of terminals 11 listed above, and other devices may be a server, network attached storage (NAS), etc. The embodiments of this application are not specifically limited.

[0516] The terminal discovery device in the embodiments of this application may be a device equipped with an operating system. The operating system may be an Android operating system, an iOS operating system, or any other possible operating system, and is not specifically limited in the embodiments of this application.

[0517] The terminal detection device provided in the embodiment of this application can perform each step realized in the embodiment of the method shown in Figure 5 and achieve the same technical effects, and a detailed explanation is omitted here so as not to be repeated.

[0518] Figure 10 is a schematic diagram of the configuration of the terminal detection device provided in the embodiment of this application, and as shown in Figure 10, the device 1000 is It includes a fifth transmission module 1001 used to transmit first placement information used in a first service, including a ranging service and / or a side-link positioning service, to a first terminal.

[0519] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0520] Selectable, the first arrangement information is The effective time of the first arrangement information, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, First traffic information for instructing the first terminal on the traffic information requested, A terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Security information of the first terminal representing security parameters related to the first service, Algorithm information of the first terminal for instructing the algorithm necessary to use the first service, Reference signal information of the first terminal for indicating the reference signals necessary to use the first service, Measurement request information from the first terminal, First permission instruction information to permit the transmission of a reference signal by the first terminal, It includes at least one second authorization instruction piece for allowing the first terminal to determine the result of a reference signal.

[0521] Selectively, 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 the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0523] The terminal discovery device in the embodiments of this application may be an electronic device, such as an electronic device equipped with an operating system, or a component of an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other device. Exemplarily, a terminal may include, but is not limited to, the types of terminals 11 listed above, and other devices may be a server, network attached storage (NAS), etc. The embodiments of this application are not specifically limited.

[0524] The terminal detection device provided in the embodiment of this application can perform each step realized in the embodiment of the method shown in Figure 6 and achieve the same technical effects, and a detailed explanation is omitted here so as not to be repeated.

[0525] Figure 11 is a schematic diagram of the configuration of the terminal detection device provided in the embodiment of this application, and as shown in Figure 11, the device 1100 is It includes a sixth transmission module 1101 used to transmit second positioning information used in a first service, including a ranging service and / or a side-link positioning service, to a second terminal.

[0526] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0527] Selectable, the second arrangement information is The effective time of the second arrangement information, First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, The first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, Second traffic information for instructing the traffic information provided by the second terminal, A terminal identifier of a second terminal, which includes at least one of a user identifier, a device identifier, and a logical identifier. Security information of the second terminal indicating security parameters related to the first service, Algorithm information for a second terminal to instruct the algorithm necessary to use the first service, Reference signal information of a second terminal for indicating the reference signals necessary to use the first service, Measurement request information from the second terminal, Third permission instruction information to allow the transmission of a reference signal by the second terminal, It includes at least one fourth authorization instruction for allowing the second terminal to determine the result of the reference signal.

[0528] Selectively, 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 the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0530] The terminal discovery device in the embodiments of this application may be an electronic device, such as an electronic device equipped with an operating system, or a component of an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other device. Exemplarily, a terminal may include, but is not limited to, the types of terminals 11 listed above, and other devices may be a server, network attached storage (NAS), etc. The embodiments of this application are not specifically limited.

[0531] The terminal detection device provided in the embodiment of this application can perform each step realized in the embodiment of the method shown in Figure 7 and achieve the same technical effects, and a detailed explanation is omitted here as it will not be repeated.

[0532] Selectively, as shown in Figure 12, embodiments of the present application further provide a communication device 1200 comprising 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, thereby realizing each step of the embodiment of the terminal discovery method corresponding to the first terminal and achieving the same technical effect. When the communication device 1200 is a second terminal, the program or command is executed by the processor 1201, thereby realizing each step of the embodiment of the terminal discovery method corresponding to the second terminal and achieving the same technical effect. When the communication device 1200 is a first network-side device, the program or command is executed by the processor 1201, thereby realizing each step of the embodiment of the terminal discovery method corresponding to the first network-side device and achieving the same technical effect. When the communication device 1200 is a second network-side device, the program or command is executed by the processor 1201, thereby realizing each step of the embodiment of the terminal discovery method corresponding to the second network-side device and achieving the same technical effect. Detailed explanations are omitted here to avoid repetition.

[0533] Embodiments of this application further provide a first terminal comprising a processor used to acquire first placement information related to a first service, and a communication interface used to send 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 all implementation steps and realization forms of the embodiment of the method described above can be applied to the embodiment of the terminal and achieve the same technical effects. Specifically, Figure 13 is a schematic diagram of the hardware configuration of a first terminal that realizes the embodiment of this application.

[0535] The terminal 1300 includes, but is not limited to, some elements such as a high-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 those skilled in the art will understand, the terminal 1300 may further include a power supply (e.g., a battery) to power each component, and the power supply is logically connected to the processor 1310 via a power management system, and the power management system can further implement functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in Figure 13 is not limiting to the terminal, and the terminal may include more or fewer components than shown, or combinations of some components, or different component arrangements, and a detailed explanation is omitted here.

[0537] In the embodiments of this application, it should be understood that the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042 that process still images or video image data acquired by an image capture device (e.g., a camera) in video capture mode or 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, 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, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, or an operating lever. A detailed explanation is omitted here.

[0538] In the embodiments of this application, the high-frequency unit 1301 can receive downlink data from network-side equipment and then transmit it to the processor 1310 for processing. The high-frequency unit 1301 can also transmit uplink data to network-side equipment. Typically, the high-frequency unit 1301 includes, but is not limited to, an antenna, amplifier, transmitter / receiver, coupler, low-noise amplifier, duplexer, etc.

[0539] Memory 1309 can be used to store software programs or commands and various data. Memory 1309 may mainly include a first storage area capable of storing an operating system, applications or commands necessary for at least one function (e.g., audio playback function, image playback function, etc.), and a second storage area for storing data. Memory 1309 may also include volatile memory or non-volatile memory, or it may include both volatile and non-volatile memory. Here, non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or 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). The memory 1309 in the embodiments of this application includes, but is not limited to, these memories and any other suitable type of memory.

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

[0541] Here, the processor 1310 is used to acquire first location information related to a first service including a ranging service and / or a side-link positioning service. The high-frequency unit 1301 is used to send a first request message to the second terminal to request discovery of the second terminal that supports the first service.

[0542] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0543] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

[0545] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, or The address information of the first terminal and / or the address information of the second terminal are transmitted along with the first request message.

[0547] Selectable, the high-frequency unit 1301 further, After sending a first request message to the second terminal, it is used to receive a first request response message sent from the second terminal, which is used to indicate that the second terminal has received the first request message from the first terminal.

[0548] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Secondary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0549] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, 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.

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

[0552] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0553] The result determination method can be selected as follows: Determination of the first result by the first terminal, Determination of the aforementioned first result by the second terminal, This includes at least one determination of the first result by the first terminal and the second terminal.

[0554] The 1310 processor is also available as an option. After receiving a first request response message transmitted from the second terminal, it is used to perform a first operation based on the first request response message, and the first operation is: Based on the second instruction information and the first instruction information, the second terminal decides to support 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, it is determined 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, it is determined 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, it is determined 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, it is determined 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, it is determined that the second terminal supports the first service, This includes at least one of the following: 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] Selectable, 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, The measurement information of the first terminal further includes at least one item, The aforementioned second auxiliary information is, Capability information of the second terminal, Location information of the second device, Address information of the second terminal, Security information for the second terminal, The system further includes at least one item of measurement information from the second terminal.

[0556] Selectable, the first arrangement information is The effective time of the first arrangement information, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, First traffic information for instructing the first terminal on the traffic information requested, A terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Security information of the first terminal representing security parameters related to the first service, Algorithm information of the first terminal for instructing the algorithm necessary to use the first service, Reference signal information of the first terminal for indicating the reference signals necessary to use the first service, Measurement request information from the first terminal, First permission instruction information to permit the transmission of a reference signal by the first terminal, It includes at least one second authorization instruction piece for allowing the first terminal to determine the result of a reference signal.

[0557] The 1310 processor is also available as an option. This is used to determine the reference signal transmission method based on the first permission instruction information.

[0558] The 1310 processor is also available as an option. This is used to determine the result determination method based on the second permission instruction information.

[0559] Selectable, the high-frequency unit 1301 further, This is used to send a second request message to the second terminal to request the establishment of a PC5 connection with the second terminal, after sending the first request message to the second terminal.

[0560] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0561] The embodiments of this application are A processor used to acquire second placement information related to the first service, The present invention further provides a second terminal comprising a communication interface used to receive a first request message transmitted from the first terminal.

[0562] The embodiment of the terminal corresponds to the embodiment of the terminal-side method described above, and all implementation steps and realization forms of the embodiment of the method described above can be applied to the embodiment of the terminal and achieve the same technical effects. Specifically, Figure 14 is a schematic diagram of the hardware configuration of a second terminal that realizes the embodiment of this application.

[0563] The terminal 1400 includes, but is not limited to, some elements such as a high-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 those skilled in the art will understand, the terminal 1400 may further include a power supply (e.g., a battery) to power each component, and the power supply is logically connected to the processor 1410 via a power management system, and the power management system can further implement functions such as charge / discharge management and power consumption management. The configuration of the terminal shown in Figure 14 is not limiting to the terminal, and the terminal may include more or fewer components than shown, or combinations of some components, or different component arrangements, and a detailed explanation is omitted here.

[0565] In the embodiments of this application, it should be understood that the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042 that process still images or video image data acquired by an image capture device (e.g., a camera) in video capture mode or image capture mode. The display unit 1406 may include a display panel 14061, which may be in the form of a liquid crystal display, 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, function buttons (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, or an operating lever. A detailed explanation is omitted here.

[0566] In the embodiments of this application, the high-frequency unit 1401 can receive downlink data from network-side equipment and then transmit it to the processor 1410 for processing. The high-frequency unit 1401 can also transmit uplink data to network-side equipment. Typically, the high-frequency unit 1401 includes, but is not limited to, an antenna, amplifier, transmitter / receiver, coupler, low-noise amplifier, duplexer, etc.

[0567] Memory 1409 can be used to store software programs or commands and various data. Memory 1409 may mainly include a first storage area capable of storing an operating system, applications or commands necessary for at least one function (e.g., audio playback function, image playback function, etc.), and a second storage area for storing data. Memory 1409 may also include volatile memory or non-volatile memory, or it may include both volatile and non-volatile memory. Here, non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or 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). The memory 1409 in the embodiments of this application includes, but is not limited to, these memories and any other suitable type of memory.

[0568] The processor 1410 may include one or more processing units, and optionally, the processor 1410 can integrate an application processor that primarily handles operations related to the operating system, user interface, and applications, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It is understood that the modem processor does not necessarily have to be integrated into the processor 1410.

[0569] Here, the processor 1410 is used to acquire second location information related to the first service, which is a terminal discovery-related service. The high-frequency unit 1401 is used to receive a first request message transmitted from the first terminal, which is used for discovery of a second terminal that supports the first service.

[0570] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0571] Selectively, the high-frequency unit 1401 further, After receiving a first request message sent from the first terminal, it is used to send a third request message requesting the establishment of a PC5 connection with the first terminal.

[0572] Selectable, the first request message is: First instruction information for indicating that the first request message is to be used for the first service, Third instruction information for instructing the second terminal to transmit second auxiliary information to help the first terminal discover the second terminal that supports the first service, A first message type for indicating the message type of the first request message, The terminal identifier of the aforementioned first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. The terminal identifier of the second terminal, First traffic information for instructing the first terminal on the traffic information requested, First auxiliary information to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

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

[0574] Selectively, 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 the address information of the first terminal and / or the address information of the second terminal, or The address information of the first terminal and / or the address information of the second terminal are transmitted along with the first request message.

[0576] Selectable, the second arrangement information is The effective time of the second arrangement information, First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, The first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, Second traffic information for instructing the traffic information provided by the second terminal, A terminal identifier of a second terminal, which includes at least one of a user identifier, a device identifier, and a logical identifier. Security information of the second terminal indicating security parameters related to the first service, Algorithm information for a second terminal to instruct the algorithm necessary to use the first service, Reference signal information of a second terminal for indicating the reference signals necessary to use the first service, Measurement request information from the second terminal, Third permission instruction information to allow the transmission of a reference signal by the second terminal, It includes at least one fourth authorization instruction for allowing the second terminal to determine the result of the reference signal.

[0577] The 1410 processor is also available as an option. This is used to determine the reference signal transmission method based on the third permission instruction information.

[0578] The 1410 processor is also available as an option. This is used to determine the result determination method based on the aforementioned fourth permission instruction information.

[0579] The 1410 processor is also available as an option. Used to perform a second operation based on the first request message, the second operation is: Based on the second traffic information in the second deployment information and the first traffic information in the first request message, the second terminal decides to provide the first service, Based on the reference signal information of the second terminal in the second arrangement information and the reference signal information of the first terminal in the first request message, it is determined that the second terminal will provide the first service. Based on the algorithm information of the second terminal in the second placement information and the algorithm information of the first terminal in the first request message, it is determined that the second terminal will provide 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, it is determined that the second terminal will provide the first service, Based on the third permission instruction information in the second placement information and the reference signal transmission method in the first request message, the second terminal decides to provide the first service, This includes at least one of the following: the second terminal deciding to provide the first service based on the fourth permission instruction information in the second placement information and the result determination method in the first request message.

[0580] Selectively, the high-frequency unit 1401 further, This is used to send a first request response message to the first terminal indicating that the second terminal has received the first request message from the first terminal.

[0581] Selectively, the high-frequency unit 1401 further, Based on the third instruction information, it is used to transmit the second auxiliary information contained in the first request response message.

[0582] Selectively, the first request response message is: Second instruction information for indicating that the first request response message is to be used for the first service, A second message type for indicating the message type of the first request response message, Second traffic information for instructing traffic information provided from the second terminal, The terminal identifier of the first terminal, The terminal identifier of the second terminal, Second auxiliary information of the second terminal to assist the first terminal in discovering the second terminal that supports the first service, Reference signal transmission method, Includes at least one method for determining the outcome.

[0583] Optionally, the first request response message further includes the address information of the first terminal and / or the address information of the second terminal, 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.

[0584] Selectively, 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] Selectively, the second auxiliary information includes at least one of the reference signal information of the second terminal, the algorithm information of the second terminal, and the measurement request information of the second terminal.

[0586] The reference signal transmission method can be selected as follows: Transmission of a reference signal by the first terminal, Transmission of a reference signal by the second terminal, Transmission of reference signals by the first and second terminals. Immediate transmission of the reference signal, Periodic transmission of a reference signal, This includes at least one transmission of a reference signal triggered by an event.

[0587] The result determination method can be selected as follows: This includes at least one of the following: determining the first result by the first terminal, determining the first result by the second terminal, or determining the first result by both the first and second terminals.

[0588] Selectively, the high-frequency unit 1401 further, It is used to send a first request response message to the first terminal based on first information, which includes at least one of a first request message, application layer instruction information, network side instruction information, and pre-configuration information.

[0589] Selectable, the high-frequency unit 1401 is, A first request response message is sent to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the application layer instruction information. A first request response message is sent 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. Based on the first traffic information and the traffic information included in the application layer instruction information in the first request message, a first request response message is sent to the first terminal. It is used in at least one of the following: sending 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.

[0590] Selectable, the high-frequency unit 1401 is, A first request response message is sent to the first terminal based on the reference signal transmission method in the first request message and the reference signal transmission method included in the pre-configuration information. A first request response message is sent 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 first request response message is sent 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-configuration information. Based on the first traffic information in the first request message and the traffic information included in the pre-configuration information, a first request response message is sent 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, a first request response message is sent to the first terminal. It is used in at least one of the following: sending 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-configuration information.

[0591] In the embodiment of this application, the ranging and / or side-link positioning service is performed by acquiring placement information related to the ranging and / or side-link positioning service. When it is necessary to find a terminal that supports the ranging and / or side-link positioning service, a first request message is transmitted, thereby enabling the terminal that supports the ranging and / or side-link positioning service to find another terminal that supports the ranging and / or side-link positioning service, and thus enabling the ranging and / or side-link positioning service to be obtained.

[0592] Embodiments of this application further provide a first network-side device comprising a processor and a communication interface used to transmit first placement information used in a first service, including a ranging service and / or a side-link positioning service, to a first terminal.

[0593] This embodiment of the first network-side device corresponds to the embodiment of the method for the first network-side device described above, and all implementation steps and realization forms of the embodiment of the method described above can be applied to this embodiment of the first network-side device and achieve the same technical effects.

[0594] Specifically, embodiments of this application further provide a first network-side device. Figure 15 is a schematic diagram of the hardware configuration of the first network-side device realizing an embodiment of this application, and as shown in Figure 15, the first network-side device 1500 includes an antenna 1501, a high-frequency device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the high-frequency device 1502. In the uplink direction, the high-frequency device 1502 receives information via 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 high-frequency device 1502, which processes the received information and then transmits it via the antenna 1501.

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

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

[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 in the embodiment of the present invention further includes commands or programs stored in memory 1505 and executable by processor 1504, the processor 1504 calling the commands or programs in memory 1505 and executing the same method as shown in Figure 10, and the same technical effect is achieved. A detailed explanation is omitted here to avoid repetition.

[0599] Embodiments of this application further provide a second network-side device comprising a processor and a communication interface used to transmit a second location information used in a first service, including a ranging service and / or a side-link positioning service, to a second terminal.

[0600] This embodiment of the second network-side device corresponds to the embodiment of the method for the second network-side device described above, and all implementation steps and realization forms of the embodiment of the method described above can be applied to this embodiment of the second network-side device and achieve the same technical effects.

[0601] Specifically, embodiments of this application further provide a second network-side device. Figure 16 is a schematic diagram of the hardware configuration of a second network-side device realizing an embodiment of this application, and as shown in Figure 16, the second network-side device 1600 includes an antenna 1601, a high-frequency device 1602, a baseband device 1603, a processor 1604, and a memory 1605. The antenna 1601 is connected to the high-frequency device 1602. In the uplink direction, the high-frequency device 1602 receives information via 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 high-frequency device 1602, and the high-frequency device 1502 processes the received information and then transmits it via the antenna 1601.

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

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

[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 in the embodiment of the present invention further includes commands or programs stored in memory 1605 and executable by processor 1604, the processor 1604 calling the commands or programs in memory 1605 and executing the same method as shown in Figure 11, and the same technical effect is achieved. A detailed explanation is omitted here to avoid repetition.

[0606] The embodiments of this application further provide a readable storage medium that stores a program or command, and when the program or command is executed by a processor, it can perform each step of the above-described embodiment of the terminal discovery method and achieve the same technical effect. A detailed explanation is omitted here so as not to be repeated.

[0607] Here, the processor is the processor in the terminal described in 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 this application provides a chip comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor executes a program or command to realize each step of the embodiment of the terminal discovery method described above, and which can achieve the same technical effects. A detailed explanation is omitted here to avoid repetition.

[0609] It should be understood that the chips referred to in the embodiments of this application may also be called system-level chips, system chips, chip systems, or system-on-a-chip, etc.

[0610] The embodiments of this application further provide a computer program / program product that is stored in a storage medium, executed by at least one processor, and implements each step of the above-described embodiment of the terminal discovery method, and can achieve the same technical effects. A detailed explanation is omitted here so as not to be repeated.

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

[0612] It should be noted that, in this specification, the terms “including,” “consisting of,” or any other variation thereof are intended to include non-exclusive inclusion, thereby meaning that a process, method, article, or apparatus containing a set of elements includes not only those elements but also other elements not explicitly stated, or elements specific to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase “including one…” does not preclude the existence of other identical elements in a process, method, article, or apparatus containing that element. It should also be noted that the scope of the methods and apparatus in embodiments of this application is not limited to performing functions in the order illustrated or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the function, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described by reference to one example may be combined in other examples.

[0613] From the above description of the embodiments, it will be clear to those skilled in the art that the methods of the above embodiments can be implemented in the form of a combination of software and a necessary common hardware platform. Of course, they may also be implemented in hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be implemented substantially or in part 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 plurality of commands that cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods of each embodiment of the present application.

[0614] Although embodiments of this application have been described above with reference to the drawings, this application is not limited to the above-described specific embodiments. The above-described specific embodiments are merely illustrative and not limiting. Many forms that a person skilled in the art could make based on the suggestions of this application without departing from the spirit of this application and the scope of protection of the claims are all within the scope of protection of this application.

Claims

1. The first terminal acquires first placement information related to a first service including a ranging service and / or a side-link positioning service. The first terminal sends a first request message to the second terminal to request discovery of the second terminal that supports the first service, The first arrangement information is, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, A terminal identifier of a first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Includes at least one of the following: The first request message includes at least one of the first auxiliary information and the first traffic information, The first auxiliary information includes at least one of the reference signal information of the first terminal, the algorithm information of the first terminal, and the measurement request information of the first terminal. A terminal discovery method wherein the first traffic information includes at least one of a traffic code corresponding to a first terminal, a traffic identifier corresponding to a first terminal, and a traffic type corresponding to a first terminal.

2. The first request message is: A first message type for indicating the message type of the first request message, The terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier, The terminal identifier of the second terminal, The terminal discovery method according to claim 1, further comprising at least one of the following.

3. The first request message further includes the address information of the first terminal and / or the address information of the second terminal, The terminal discovery method according to claim 1 or 2, wherein the address information of the first terminal and / or the address information of the second terminal are transmitted together with the first request message.

4. After the first terminal sends the first request message to the second terminal, The terminal discovery method according to claim 1, further comprising the step of the first terminal receiving a first request response message transmitted from the second terminal, which is used to indicate that the second terminal has received the first request message from the first terminal.

5. The first arrangement information is, The terminal discovery method according to claim 1, further comprising the effective time of the first placement information.

6. The second terminal acquires second location information related to the first service, which includes a ranging service and / or a side-link positioning service. The process includes the step of the second terminal receiving a first request message transmitted from the first terminal for requesting discovery of the second terminal supporting the first service, The aforementioned second arrangement information is First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, A first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, A terminal identifier of a second terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Includes at least one of the following: The first request message includes at least one of the first auxiliary information and the first traffic information, The first auxiliary information includes at least one of the reference signal information of the first terminal, the algorithm information of the first terminal, and the measurement request information of the first terminal. A terminal discovery method wherein the first traffic information includes at least one of a traffic code corresponding to a first terminal, a traffic identifier corresponding to a first terminal, and a traffic type corresponding to a first terminal.

7. After the second terminal receives the first request message transmitted from the first terminal, The terminal discovery method according to claim 6, further comprising the step of the second terminal sending a third request message to request the establishment of a PC 5 connection with the first terminal.

8. The first request message is: A first message type for indicating the message type of the first request message, The terminal identifier of the first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier, The terminal identifier of the second terminal, The terminal discovery method according to claim 6 or 7, further comprising at least one of the following.

9. A terminal discovery device applicable to the first terminal, A first acquisition module used to acquire first placement information related to a first service including a ranging service and / or a side-link positioning service, The system includes a first transmission module used to send a first request message to a second terminal for requesting discovery of the second terminal that supports the first service, The first arrangement information is, First authorization information of the first terminal for indicating the type of discovery method permitted when the first terminal receives services from a wireless access network, A first authorization list for the first terminal to specify the PLMN list to be discovered when the first terminal receives services from the wireless access network, Second authorization information for the first terminal to indicate the type of discovery method permitted when the first terminal is not provided with service from the wireless access network, A terminal identifier of a first terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Includes at least one of the following: The first request message includes at least one of the first auxiliary information and the first traffic information, The first auxiliary information includes at least one of the reference signal information of the first terminal, the algorithm information of the first terminal, and the measurement request information of the first terminal. The terminal discovery device includes, for the first traffic information, at least one of a traffic code corresponding to a first terminal, a traffic identifier corresponding to a first terminal, and a traffic type corresponding to a first terminal.

10. A second acquisition module used to acquire second location information related to a first service including a ranging service and / or a side-link positioning service, The system comprises a second receiving module used to receive a first request message transmitted from a first terminal for requesting discovery of a second terminal that supports the first service, The aforementioned second arrangement information is First authorization information of the second terminal for indicating the type of discovery method permitted when the second terminal receives services from the wireless access network, A first authorization list of the second terminal for specifying the PLMN list to be discovered when the second terminal receives services from the wireless access network, Second authorization information for the second terminal to indicate the type of discovery method permitted when the second terminal is not provided with service from the wireless access network, A terminal identifier of a second terminal, which includes at least one of an identity identifier, a device identifier, and a logical identifier. Includes at least one of the following: The first request message includes at least one of the first auxiliary information and the first traffic information, The first auxiliary information includes at least one of the reference signal information of the first terminal, the algorithm information of the first terminal, and the measurement request information of the first terminal. The terminal discovery device includes, for the first traffic information, at least one of a traffic code corresponding to a first terminal, a traffic identifier corresponding to a first terminal, and a traffic type corresponding to a first terminal.

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