Terminal information acquisition method, communication device, communication system, and storage medium

Abstract

The present invention relates to a terminal information acquisition method, a communication device, a communication system, and a storage medium. The method comprises: on the basis of a first mode, a first terminal sends terminal information related to a first service, wherein the first mode is a mode of sending information in a broadcast manner. In this way, terminal information required by a service is effectively updated.

Description

Terminal information acquisition method, communication device, communication system, and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a terminal information acquisition method, a communication device, a communication system, and a storage medium. Background Art

[0002] In order to support direct communication between terminals, a sidelink (SL) communication method is introduced. Ranging refers to determining the distance between two or more terminals, or the direction from one terminal to another, through a PC5 interface. A PC5 interface refers to a communication interface between terminals, such as a short-range direct communication interface between vehicles, people, and road infrastructure. Sidelink SL positioning refers to estimating the position of a located terminal based on the sidelink SL. For example, ranging or sidelink SL positioning can be performed on a located terminal (e.g., a target terminal (target user equipment, target UE)) based on information from a terminal (e.g., a positioning terminal (located user equipment, located UE)). The reference terminal can be, for example, an SL reference terminal whose position is known or can be known in ranging or sidelink SL positioning. For another example, the relative position information of a terminal (e.g., a target terminal (target user equipment, target UE)) and another terminal (e.g., an SL reference terminal (sidelink reference user equipment, sidelink reference UE)) can be determined through ranging or sidelink SL positioning.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a terminal information acquisition method, a network device, a terminal, a device, a chip system, a storage medium, a computer program, and a computer program product, which can be applied in the field of communication technology to solve the technical problem that "the relevant technology does not support the terminal information required for updating the service."

[0005] The present disclosure provides a terminal information acquisition method, a communication device, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a terminal information acquisition method is proposed, which is executed by a first terminal and includes: sending terminal information related to a first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0007] According to the second aspect of an embodiment of the present disclosure, a terminal information acquisition method is proposed, which is executed by a second terminal, including: receiving terminal information related to a first service sent by a first terminal based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0008] According to the third aspect of an embodiment of the present disclosure, a terminal information acquisition method is proposed, including: a first terminal sends terminal information related to a first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner; and a second terminal receives terminal information related to the first service.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a transceiver module, configured to send terminal information related to a first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a transceiver module, configured to receive terminal information related to a first service sent by a first terminal based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0011] According to the sixth aspect of an embodiment of the present disclosure, a communication device is proposed, comprising: one or more processors; wherein the processor is used to call instructions to enable the communication device to execute the terminal information acquisition method of any one of the first aspect, the second aspect, and the third aspect.

[0012] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a first terminal and a second terminal, wherein the first terminal is configured to implement the terminal information acquisition method of the first aspect, and the second terminal is configured to implement the terminal information acquisition method of the second aspect.

[0013] According to the eighth aspect of the embodiment of the present disclosure, a storage medium is proposed, which stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes a terminal information acquisition method as described in any one of the first, second, and third aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0015] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0016] FIG2 is an interactive diagram illustrating a method for acquiring terminal information according to an embodiment of the present disclosure;

[0017] FIG3A is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0018] FIG3B is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0019] FIG3C is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0020] FIG3D is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0021] FIG4A is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0022] FIG4B is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0023] FIG4C is an interactive diagram illustrating a method for acquiring terminal information according to another embodiment of the present disclosure;

[0024] FIG5 is an interactive diagram illustrating a method for acquiring terminal information according to yet another embodiment of the present disclosure;

[0025] FIG6A is a schematic diagram of an improved additional parameter announcement process in an embodiment of the present disclosure;

[0026] FIG6B is a schematic diagram of a new terminal information announcement process in an embodiment of the present disclosure;

[0027] FIG7A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure;

[0028] FIG7B is a schematic structural diagram of a terminal proposed in another embodiment of the present disclosure;

[0029] FIG8A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0030] FIG8B is a schematic diagram of the structure of the chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] The present disclosure provides a terminal information acquisition method, communication device, communication system, and storage medium. In some embodiments, the terms "terminal information acquisition method" and "information processing method" and "communication method" are interchangeable; the terms "terminal information acquisition device" and "information processing device" and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0032] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0033] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0034] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0035] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0036] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0037] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0038] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0039] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0040] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0041] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0042] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0043] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", "above" and the like can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0044] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0045] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0046] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0047] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0048] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0049] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0050] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0051] As shown in FIG1 , a communication system 100 includes a terminal 101, a terminal 102, a core network device 103, and an access network device 104. Terminal 101 or terminal 102 can be connected to core network device 103 via access network device 104. In some embodiments, terminal 101 or terminal 102 includes, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and a wireless terminal device in a smart home, but is not limited thereto.

[0052] In some embodiments, the communication system 100 may further include an access network device, which is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0053] In some embodiments, the access network device 104 is, for example, a node or device that accesses the terminal to a wireless network. The access network device 104 may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a WiFi system, but is not limited thereto.

[0054] In some embodiments, the access network device 104 can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0055] In some embodiments, the core network device 103 may be a single device, or may be multiple devices or a group of devices. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0056] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0057] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0058] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0059] In order to support direct communication between terminals, a sidelink (SL) communication method is introduced. Ranging refers to determining the distance between two or more terminals, or the direction from one terminal to another, through a PC5 interface. A PC5 interface refers to a communication interface between terminals, such as a short-range direct communication interface between vehicles, people, and road infrastructure. Sidelink SL positioning refers to estimating the position of a located terminal based on the sidelink SL. For example, ranging or sidelink SL positioning can be performed on a located terminal (e.g., a target terminal (target user equipment, target UE)) based on information from a terminal (e.g., a positioning terminal (located user equipment, located UE)). The reference terminal can be, for example, an SL reference terminal whose position is known or can be known in ranging or sidelink SL positioning. For another example, the relative position information of a terminal (e.g., a target terminal (target user equipment, target UE)) and another terminal (e.g., an SL reference terminal (sidelink reference user equipment, sidelink reference UE)) can be determined through ranging or sidelink SL positioning.

[0060] Optionally, SL-assisted terminal positioning involves the 5G Core (5GC), which uses the positions of one or more positioning terminals, as well as the distance and / or direction between the target terminal and the positioning terminal, to estimate the location of the target terminal with the assistance of the network. For example, 5GC Mobile Originated Location Request (5GC-MO-LR) and 5GC Mobile Terminated Location Request (5GC-MT-LR) services.

[0061] Optionally, the ranging / SL positioning results may include: absolute position, relative position, distance and direction, depending on the business requirements. If the target terminal decides to start the SL-MO-LR process, the target terminal may include information about one or more SL reference terminals and / or positioning terminals in the service request message. If the location services client (LCS Client) or application function (AF) network element decides to obtain the ranging / SL positioning results of a group of n terminals (n≥2), i.e., terminal 1, terminal 2, ..., terminal n, the gateway mobile location center (GMLC) designates one of the n terminals as the target terminal, and designates one or more reference terminals and / or positioning terminals, then the SL-MT-LR process may be applied.

[0062] Optionally, discovery based on Mode A and Mode B can be used to support 5G ProSe terminal discovery (including commercial and public safety use cases). When a ranging / SL positioning terminal is directly discovered, the discovery type is "ranging / SL positioning"; when a ranging / SL positioning group member is discovered, the "Application Layer Group ID" indicates the ranging / SL positioning group to which the terminal belongs.

[0063] Optionally, some communication protocols define a V2X communication process over the PC5 reference point for discovering terminals that support V2X services. When using a unicast mode V2X communication process, the "Service Type" in the Layer 2 Link Establishment process is "Ranging / SL Positioning." When using a broadcast or multicast mode V2X communication process, the "Service Type" in the Layer 2 Link Establishment process is "Ranging / SL Positioning."

[0064] Optionally, the role of the discovered terminal (e.g., target terminal, SL reference terminal, SL positioning server terminal, positioning terminal) can be included in the discovery message (for terminals supporting 5G Proximity Services (ProSe)) and the unicast link establishment message (for terminals supporting V2X) as Ranging and Sidelink Positioning Protocol (RSPP) specific metadata.

[0065] Optionally, when SL positioning is applied to determine the absolute location of the target terminal, the target terminal discovers and selects the positioning terminal. When the Location Management Function (LMF) network element decides to apply SL positioning to the target terminal, the LMF network element triggers the target terminal to discover the positioning terminal. The LMF network element may provide the target terminal with a list of candidate positioning terminals as auxiliary data.

[0066] Optionally, when SL positioning is applied to determine the relative position of the target terminal, the target terminal may discover one or more SL reference terminals.

[0067] Optionally, the ranging / SL positioning service is a service that is sensitive to the terminal role, and the terminal role is exchanged in the terminal discovery process. For terminals that support ProSe, when the terminal is discovered to perform ranging / SL positioning, terminal discovery based on mode A and mode B is supported at the same time, and the terminal role of the discovered terminal (e.g., target terminal, SL reference terminal, SL positioning server terminal, positioning terminal) is included in the discovery message (for terminals that support 5G ProSe). For terminals that support V2X, the terminal role of the discovered terminal (e.g., target terminal, SL reference terminal, SL positioning server terminal, positioning terminal) is included in the unicast link establishment message as RSPP specific metadata. However, the ranging / SL positioning service is performed between at least two terminals with specific terminal roles, such as requesting the relative position, or distance and direction, between the target terminal and at least one reference terminal, or requesting the absolute position of the target terminal based on the SL positioning between the target terminal and at least one reference terminal. Therefore, after discovering the terminal, it is necessary to update the terminal information or updated terminal information (e.g., terminal role) to the opposite terminal in a timely manner.

[0068] Optionally, if coverage information of the terminal is considered (eg, inside coverage or outside coverage), after the terminal is discovered, updated terminal information (eg, coverage information during terminal movement) is not effectively updated to the opposite terminal.

[0069] Optionally, in the process of opening services to the SL positioning client terminal through PC5, the status information received by the terminal from the discovered terminal regarding the presence or absence of a non-access stratum (NAS) connection will also affect the SL positioning client terminal's selection of a terminal for performing SL positioning operations and the selection of a terminal for receiving SL positioning service requests. It will also affect the terminal receiving the SL positioning service request's selection of an LMF network element or an SL positioning server terminal. After the terminal is discovered, the terminal's status information is not effectively updated to the opposite terminal.

[0070] Based on this, the present disclosure proposes a terminal information acquisition method to effectively update the terminal information required for the service.

[0071] The embodiments of the present disclosure provide a method that can be applied to a first service scenario. For example, it can be applied to a ranging or SL positioning scenario. Of course, the method of the present disclosure can also be applied to any other possible service scenario.

[0072] FIG2 is an interactive diagram of a method for obtaining terminal information according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to a method for obtaining terminal information, which can be used in a communication system 100. The method includes:

[0073] Step S2101: The second terminal sends first information to the first terminal.

[0074] The first information is used to request the first terminal to send terminal information based on a first mode. The first mode is a mode of sending information in a broadcast manner. The terminal information may specifically refer to terminal information of the first terminal related to the first service.

[0075] In some embodiments, the second terminal may instruct the first terminal to broadcast terminal information related to the first service by sending the first information to the first terminal. In other embodiments, other terminals may request the first terminal to send terminal information based on the first mode, and the first terminal may send terminal information based on the first mode in response to the request, and the second terminal may receive the terminal information sent by the first terminal based on the first mode. In other words, steps 2101-S2102 are optional steps. The second terminal may trigger the first terminal to send terminal information based on the first mode by sending the first information to the first terminal, or when other terminals have triggered the first terminal to send terminal information based on the first mode, the second terminal may directly receive the terminal information sent by the first terminal based on the first mode. There is no limitation on this.

[0076] In some embodiments, the terminal information includes at least one of the following: role information of the first terminal; coverage information of the first terminal; status information of the first terminal; and capability information of the first terminal. This enables obtaining comprehensive terminal information of the first terminal.

[0077] In some embodiments, the role information of the first terminal can be used to indicate the terminal role corresponding to the first terminal in the first service. The terminal role is, for example, a target terminal, an SL reference terminal, an SL positioning server terminal, or a positioning terminal, without limitation.

[0078] In some embodiments, the coverage information of the first terminal indicates whether the terminal is outside or within the coverage of the wireless signal.

[0079] In some embodiments, the status information of the first terminal indicates the connection status of the first terminal, such as status information of whether the terminal has a non-NAS connection or no NAS connection.

[0080] In some embodiments, the capability information of the first terminal is used to describe the capability of the first terminal, such as the positioning method supported by the first terminal.

[0081] The terminal information of the first terminal mentioned above may specifically be, for example, existing terminal information or updated terminal information, which is not limited.

[0082] In some embodiments, the first service may be, for example, a ranging or sidelink (SL) positioning service, so that the terminal information of the first terminal can be effectively updated during the implementation of the ranging or sidelink (SL) positioning service.

[0083] In some embodiments, the second terminal may send an additional parameter announcement request message to the first terminal, where the additional parameter announcement request message includes the first information. In other words, the second terminal may indicate the first information to the first terminal by sending the additional parameter announcement request message to the first terminal. This allows the reuse of existing messages to instruct the first terminal to send terminal information based on the first mode, avoiding the introduction of additional indication overhead.

[0084] In some embodiments, the second terminal may send a terminal information announcement request message to the first terminal, where the terminal information announcement request message includes the first information. In other words, the second terminal may indicate the first information to the first terminal by sending a new message (a terminal information announcement request message) to the first terminal. This improves the flexibility of the indication and is effectively applicable to personalized service scenarios.

[0085] In some embodiments, after receiving the first information sent by the second terminal, the first terminal can also configure a timer for the second terminal. The timing duration of the timer can be called the first timing duration. The second terminal can refer to the first timing duration to determine the timing of sending the first information again.

[0086] In some embodiments, the second terminal may start a timer after receiving the first timer duration. If the first timer duration expires and there is a need to obtain terminal information related to the first service from the first terminal again, the second terminal may resend the first information to again request the first terminal to send the terminal information based on the first mode. This allows timely updating of the terminal information required for the service.

[0087] Step S2102: The first terminal indicates to the second terminal, based on the first information, that it has accepted the request to announce the terminal information.

[0088] In some embodiments, after receiving the first information, the first terminal may indicate to the second terminal that it has accepted the request to announce the terminal information, so that the second terminal can know that the first terminal has accepted the request to announce the terminal information.

[0089] In some embodiments, the first terminal may indicate to the second terminal that it has accepted the request to announce the terminal information by feeding back a response message to the second terminal.

[0090] In some embodiments, when a second terminal sends an Additional Parameter Advertisement Request message to a first terminal to indicate the first information, the first terminal may send back an Additional Parameter Advertisement Response message to the second terminal, and based on the Additional Parameter Advertisement Response message, indicate that the first terminal has accepted the request to advertise the terminal information. This allows the reuse of existing messages to indicate that the first terminal has accepted the request to advertise the terminal information, avoiding the introduction of additional indication overhead.

[0091] In some embodiments, when a second terminal sends a terminal information announcement request message to a first terminal to indicate the first information, the first terminal can then send a terminal information announcement response message back to the second terminal, and based on the terminal information announcement response message, indicate that the first terminal has accepted the request to announce the terminal information. This improves the flexibility of the instructions and effectively applies to personalized service scenarios.

[0092] In some embodiments, the first terminal may include the first timing duration in the additional parameter announcement response message or the terminal information announcement response message, so that the second terminal can determine the timing for resending the first information. Thus, the first timing duration can be promptly indicated to the second terminal.

[0093] In some embodiments, the second terminal can determine that the first terminal has accepted the request to announce the terminal information by receiving the additional parameter announcement response message sent by the first terminal. In this way, the second terminal can effectively know that the first terminal has accepted the request to announce the terminal information.

[0094] In some embodiments, the second terminal can determine that the first terminal has accepted the request to announce the terminal information by receiving the terminal information announcement response message sent by the first terminal. In this way, the second terminal can effectively know that the first terminal has accepted the request to announce the terminal information.

[0095] In some embodiments, if the second terminal resends the first information based on the first timing duration, the first terminal can receive the first information resent by the second terminal in response to determining that the first timing duration has expired, so that the first terminal can promptly determine that the second terminal has a need to re-acquire the terminal information related to the first service of the first terminal.

[0096] Step S2103: The first terminal sends terminal information related to the first service based on the first mode.

[0097] In some embodiments, the first terminal may broadcast terminal information related to the first service. For example, the first terminal may broadcast the terminal information so that the second terminal, the third terminal, and other terminals can receive the broadcasted terminal information and support the correct and effective implementation of the first service.

[0098] In some embodiments, the first terminal may send terminal information related to the first service multiple times in a first mode based on a second timing duration, where the second timing duration is less than the first timing duration, and the first timing duration is used by the second terminal to determine when to resend the first information. This effectively increases the probability of successful reception of terminal information and allows updated terminal information to be promptly and effectively synchronized to the second terminal, third terminal, and other terminals when it is generated.

[0099] Step S2104: The second terminal receives terminal information related to the first service sent by the first terminal.

[0100] In some embodiments, the second terminal may receive the terminal information broadcasted by the first terminal.

[0101] In some embodiments, if the first terminal sends terminal information related to the first service multiple times in the first mode based on the second timer duration, the second terminal can receive the terminal information sent multiple times by the first terminal. This effectively increases the probability of successfully receiving the terminal information, and when updated terminal information is generated, the updated terminal information can be promptly and effectively synchronized to the second terminal.

[0102] In some embodiments, the second terminal may discover and / or select the first terminal based on the terminal information and establish a link between the first terminal and the second terminal, so that the link between the first terminal and the second terminal can effectively support the implementation of the first service.

[0103] In some embodiments, the second terminal may determine whether the second terminal matches the first terminal based on the received terminal information or updated terminal information of the first terminal.

[0104] In some embodiments, if the second terminal receives the terminal information announced by the first terminal before the link between the second terminal and the first terminal is established, the second terminal can determine, discover and / or select a suitable first terminal based on the received terminal information of the first terminal to establish a link, so that the link between the first terminal and the second terminal can effectively support the implementation of the first service.

[0105] In some embodiments, the second terminal may manage the link between the first terminal and the second terminal based on the terminal information of the first terminal, so that the link between the first terminal and the second terminal can effectively support the implementation of the first service.

[0106] In some embodiments, the second terminal may implement the first service based on the terminal information, thereby enabling the first service to be effectively implemented.

[0107] In some embodiments, if the terminal information meets the first business requirement, the second terminal can interact with the first terminal and modify the link between the first terminal and the second terminal to release the business data flow that does not match the terminal information; or, if the terminal information meets the first business requirement, the link between the first terminal and the second terminal can be modified to add a business data flow that matches the terminal information to the link; or, if the terminal information meets the first business requirement, the link between the first terminal and the second terminal can be maintained without any modification; or, if the terminal information does not meet the first business requirement, the link between the first terminal and the second terminal can be released.

[0108] Step S2105: The third terminal receives terminal information related to the first service sent by the first terminal.

[0109] In some embodiments, the third terminal and the second terminal may be different terminals, or they may be the same terminal. The third terminal may be any one of multiple terminals, and the second terminal may be any one of multiple terminals. The number of second terminals may be one or more, and the number of third terminals may be one or more. "First," "second," and "third" do not impose any restrictions on the terminals themselves. Similarly, if there are other terminals in the business scenario, any other terminal may also be used as the second terminal or the third terminal, without restriction.

[0110] In some embodiments, the third terminal may receive the terminal information broadcasted by the first terminal.

[0111] In some embodiments, if the first terminal transmits terminal information related to the first service multiple times in the first mode based on the second timing duration, the third terminal can receive the terminal information transmitted multiple times by the first terminal. This effectively increases the probability of successfully receiving the terminal information and enables the updated terminal information to be promptly and effectively synchronized to the third terminal when it is generated.

[0112] In some embodiments, if the second terminal receives the terminal information announced by the first terminal before the link between the second terminal and the first terminal is established, the second terminal can determine, discover and / or select a suitable first terminal based on the received terminal information of the first terminal to establish a link, so that the link between the first terminal and the second terminal can effectively support the implementation of the first service.

[0113] In some embodiments, the third terminal may manage the link between the first terminal and the third terminal based on the terminal information, so that the link between the first terminal and the third terminal can effectively support the implementation of the first service.

[0114] In some embodiments, the third terminal may implement the first service based on the terminal information, thereby enabling the first service to be effectively implemented.

[0115] In some embodiments, if the terminal information meets the first business requirement, the third terminal can interact with the first terminal and modify the link between the first terminal and the third terminal to release the business data flow that does not match the terminal information; or, if the terminal information meets the first business requirement, the link between the first terminal and the third terminal can be modified to add a business data flow that matches the terminal information to the link; or, if the terminal information meets the first business requirement, the link between the first terminal and the second terminal can be maintained without any modification; or, if the terminal information does not meet the first business requirement, the link between the first terminal and the third terminal can be released.

[0116] Step S2106: The third terminal sends third information to the first terminal.

[0117] In some embodiments, if the third terminal needs to obtain terminal information related to the first service of the first terminal, the third terminal may also actively send third information to the first terminal to request the first terminal to send terminal information based on the first mode based on the third information.

[0118] It should be noted that, for the implementation method of the third terminal sending the third information to the first terminal to request the first terminal to send terminal information based on the first mode, please refer to the implementation method of the second terminal sending the first information to the first terminal to request the first terminal to send terminal information based on the first mode, which will not be repeated here.

[0119] In some embodiments, after receiving the third information sent by the third terminal, the first terminal can also configure a timer for the third terminal. The timing duration of the timer can be called the third timing duration. The third terminal can refer to the third timing duration to determine the timing of sending the third information again.

[0120] In some embodiments, the third terminal may start a timer after receiving the third timer duration. If the third timer duration expires and there is a need to obtain terminal information related to the first service from the first terminal again, the third terminal may resend the third message to again request the first terminal to send the terminal information based on the first mode. This allows timely updating of the terminal information required for the service.

[0121] Step S2107: The first terminal determines that the condition is met and stops sending terminal information related to the first service.

[0122] In some embodiments, the first terminal may stop sending the terminal information related to the first service when determining that the condition is met, thereby implementing on-demand sending of terminal information.

[0123] In some embodiments, when the first terminal has received the fourth information sent by the second terminal and / or the third terminal, it can determine that the condition is met and can stop sending terminal information related to the first service, wherein the fourth information is used to instruct the first terminal to stop sending terminal information.

[0124] In some embodiments, when the first terminal has received the fourth information sent by all terminals requesting to announce terminal information, it can determine that the condition is met and can stop sending terminal information related to the first service, wherein the fourth information is used to instruct the first terminal to stop sending terminal information.

[0125] In some embodiments, when the first terminal determines that the first service has been completed, it may stop sending terminal information related to the first service.

[0126] In some embodiments, the first terminal may stop sending terminal information related to the first service after receiving a stop sending request message, wherein the stop sending request message is used to indicate that the first service has been completed and instruct the first terminal to stop sending terminal information.

[0127] In some embodiments, when the first terminal determines that the first timing duration has timed out and no longer receives information sent by other terminals requesting the first terminal to send terminal information, the first terminal may stop sending terminal information related to the first service, wherein the first terminal triggers the sending of terminal information based on the request of the second terminal, and the first timing duration is configured by the first terminal for the second terminal.

[0128] In some embodiments, when the first terminal determines that both the first timing duration and the third timing duration have timed out and no information sent by other terminals for requesting the first terminal to send terminal information is received, the first terminal may stop sending terminal information related to the first service, wherein the first terminal triggers the sending of terminal information based on the requests of the second terminal and the third terminal, and the third timing duration is configured by the first terminal for the third terminal.

[0129] Thus, the first terminal can flexibly and accurately determine the timing of stopping sending the terminal information related to the first service, which is effectively applicable to personalized service scenarios.

[0130] It should be noted that, in the embodiment of the present disclosure, the first terminal may also implement the following process based on the terminal information:

[0131] In some embodiments, the first terminal can determine whether to participate in the first service based on the terminal information, for example, by determining whether the terminal information of the terminal or updated terminal information matches the first service. If so, the first terminal determines to participate in the first service; if not, the first terminal determines not to participate in the first service. This allows the terminal information of the first terminal to effectively support the implementation of the first service.

[0132] In some embodiments, the first terminal may determine whether the first terminal and the second terminal match based on the terminal information of the terminal or updated terminal information.

[0133] In some embodiments, if, before a link between a first terminal and a second terminal is established, the first terminal discovers that its terminal information or updated terminal information does not match the first service, the first terminal may withdraw from participating in the first service and not establish a link with the second terminal. If the terminal information or updated terminal information matches the first service, the first terminal may participate in the first service and, optionally, participate in establishing a link with the second terminal (including initiating or accepting link establishment).

[0134] In some embodiments, the first terminal may manage the link between the first terminal and the second terminal based on the terminal information of the terminal itself, so that the link between the first terminal and the second terminal can effectively support the implementation of the first service.

[0135] In some embodiments, the first terminal may implement the first service according to the terminal information, thereby enabling the first service to be effectively implemented.

[0136] In some embodiments, if the terminal information meets the first business requirement, the first terminal can interact with the second terminal and modify the link between the first terminal and the second terminal to release the business data flow that does not match the terminal information; or, if the terminal information meets the first business requirement, the link between the first terminal and the second terminal can be modified to add a business data flow that matches the terminal information to the link; or, if the terminal information meets the first business requirement, the link between the first terminal and the second terminal can be maintained without any modification; or, if the terminal information does not meet the first business requirement, the link between the first terminal and the second terminal can be released.

[0137] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S2101 to S2107. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S2101+S2102 can be implemented as independent embodiments, and steps S2101+S2102+S2103 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0138] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0139] In this embodiment, the second terminal sends the first information to the first terminal. The first terminal indicates to the second terminal that it has accepted the request to announce the terminal information based on the first information, and sends the terminal information related to the first service based on the first mode. The second terminal receives the terminal information related to the first service sent by the first terminal. In addition, the third terminal can also receive the terminal information related to the first service sent by the first terminal. The third terminal can also send the third information to the first terminal. When the first terminal determines that the conditions are met, it stops sending the terminal information related to the first service, thereby effectively updating the terminal information required for the service.

[0140] FIG3A is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used for a first terminal. The method includes:

[0141] Step S3101: Send terminal information related to a first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0142] The terminal information acquisition method involved in the embodiment of the present disclosure may include step S3101. For example, step S3101 may be implemented as an independent embodiment, but is not limited thereto.

[0143] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0144] FIG3B is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used for a first terminal. The method includes:

[0145] Step S3201: Receive first information sent by a second terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0146] Step S3202: Send terminal information related to the first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0147] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S3201 and S3202. For example, step S3201 can be implemented as an independent embodiment, step S3202 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S3201 and S3202 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0148] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0149] FIG3C is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG3C , the present disclosure embodiment relates to a method for acquiring terminal information, which can be used for a first terminal. The method includes:

[0150] Step S3301: Receive first information sent by a second terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0151] Step S3302: Based on the second timing duration, terminal information related to the first service is sent multiple times in the first mode, wherein the second timing duration is smaller than the first timing duration, and the first timing duration is used by the second terminal to determine when to send the first information again.

[0152] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S3301 and S3302. For example, step S3301 can be implemented as an independent embodiment, step S3302 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S3301+S3302 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0153] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0154] FIG3D is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG3D , the present disclosure embodiment relates to a method for acquiring terminal information, which can be used for a first terminal. The method includes:

[0155] Step S3401: Receive first information sent by a second terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0156] Step S3402: Send terminal information related to the first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0157] Step S3403: Receive third information sent by the third terminal, where the third information is used to request the first terminal to send terminal information based on the first mode.

[0158] Step S3404: If the conditions are met, stop sending the terminal information related to the first service.

[0159] In some embodiments, the first terminal itself may determine and stop sending terminal information related to the first service. For example, the first terminal determines that the first service has been completed; or the first timer duration has expired and no information is received from other terminals requesting the first terminal to send terminal information, where the first terminal is triggered to send terminal information based on a request from a second terminal, and the first timer duration is configured by the first terminal for the second terminal; or the first timer duration and the third timer duration both expire and no information is received from other terminals requesting the first terminal to send terminal information, where the first terminal is triggered to send terminal information based on requests from the second and third terminals, and the third timer duration is configured by the first terminal for the third terminal.

[0160] In some embodiments, the first terminal may stop sending the terminal information related to the first service according to the request terminal sending the request to stop.

[0161] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S3401 to S3404. For example, step S3401 can be implemented as an independent embodiment, step S3402 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S3401+S3402 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0162] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0163] FIG4A is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used for a second terminal. The method includes:

[0164] Step S4101: receiving terminal information related to a first service sent by a first terminal based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0165] The terminal information acquisition method involved in the embodiment of the present disclosure may include step S4101. For example, step S4101 may be implemented as an independent embodiment, but is not limited thereto.

[0166] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0167] FIG4B is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used for a second terminal. The method includes:

[0168] Step S4201: Send first information to a first terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0169] Step S4202: receiving terminal information related to a first service sent by a first terminal based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0170] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S4201 and S4202. For example, step S4201 can be implemented as an independent embodiment, step S4202 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S4201+S4202 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0171] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0172] FIG4C is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG4C , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used for a second terminal. The method includes:

[0173] Step S4301: Send first information to a first terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0174] Step S4302: Receive terminal information related to the first service sent multiple times by the first terminal in the first mode based on the second timing duration, wherein the second timing duration is smaller than the first timing duration, and the first timing duration is used by the second terminal to determine when to send the first information again.

[0175] Step S4303: Request the first terminal to stop sending terminal information related to the first service.

[0176] In some embodiments, the second terminal may send fourth information to the first terminal, where the fourth information is used to instruct the first terminal to stop sending terminal information.

[0177] In some embodiments, the second terminal may send a stop sending request message to the first terminal, wherein the stop sending request message is used to indicate that the first service has been completed and to instruct the first terminal to stop sending terminal information.

[0178] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S4301 to S4303. For example, step S4301 can be implemented as an independent embodiment, step S4302 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S4301+S4302 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0179] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0180] FIG5 is an interactive diagram of a method for acquiring terminal information according to another embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a method for acquiring terminal information, which can be used in a communication system. The method includes:

[0181] Step S5101: The first terminal sends terminal information related to the first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0182] Step S5102: The second terminal receives terminal information related to the first service.

[0183] The terminal information acquisition method involved in the embodiments of the present disclosure may include at least one of steps S5101 and S5102. For example, step S5101 can be implemented as an independent embodiment, step S5102 can be implemented as an independent embodiment, and so on, but the present invention is not limited thereto. Steps S5101 and S5102 can be implemented as independent embodiments, but the present invention is not limited thereto.

[0184] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.

[0185] In the embodiment of the present disclosure, it is possible to support the transmission of terminal information, such as existing terminal information or updated terminal information, between at least two terminals during the implementation of terminal information-sensitive services. This includes at least one of the following:

[0186] When terminals that support terminal information-sensitive services update their terminal information, they can announce the updated terminal information.

[0187] The terminal can respond to the request to announce terminal information.

[0188] The terminal may announce the updated terminal information when updating the requested terminal information.

[0189] A terminal may stop advertising requested terminal information based on an explicit request or a configured timer.

[0190] Terminal information may include terminal role, terminal coverage information, terminal status information, terminal capability information, and any other possible terminal information.

[0191] The following is an exemplary introduction to the above method.

[0192] Optional embodiment:

[0193] As shown in Figure 6A, Figure 6A is a schematic diagram of the improved additional parameter announcement process in the embodiment of the present disclosure. The additional parameter announcement process in this embodiment is not only applicable to user equipment to network (UE-to-network) relay, but also extended to a general process applicable to other services for transmitting terminal information or updated terminal information. In this embodiment, UE-1, UE-2, UE-3, network, and application may be included. UE-2 serves as the target terminal, and the ranging / SL positioning service request can be triggered by the application layer or network of UE-2. With the assistance of the positioning terminal near UE-2, the absolute position of UE-2 is requested. UE-1 and UE-3 are near UE-2 and can support ranging / SL positioning services. UE-1 and UE-3 can serve as positioning terminals.

[0194] 1. UE-2 discovers that UE-1 and UE-3 support the same terminal information-sensitive service.

[0195] In some embodiments, UE-2 discovers that UE-1 and UE-3 support ranging / SL positioning services, and UE-2 needs to obtain updated terminal information, such as the terminal role of the opposite terminal.

[0196] 2. UE-2 sends an additional parameter announcement request message (indication requesting terminal information) to UE-3.

[0197] In some embodiments, the additional parameter announcement request message may be, for example, an Additional Parameters Announcement Request.

[0198] In some embodiments, UE-2 sends an additional parameter announcement request message to UE-3 to obtain updated terminal information of the opposite UE, such as the terminal role, etc. The additional parameter announcement request message may include an indication of the requested specific updated terminal information, such as the updated terminal role.

[0199] 2a. UE-2 sends an additional parameter announcement request message (requesting terminal information indication) to UE-1.

[0200] Step 2a may be similar to step 2, where UE-2 sends an additional parameter announcement request message to UE-1.

[0201] 3. UE-3 sends an additional parameter announcement response message to UE-2, which carries an additional parameter announcement request update timer.

[0202] In some embodiments, the additional parameter announcement request update timer may be, for example, Additional_Parameters_Announcement_Request_Refresh Timer.

[0203] In some embodiments, the additional parameter announcement response message may be, for example, an Additional Parameters Announcement Response.

[0204] In some embodiments, UE-3 confirms receipt of the request in step 2 through an additional parameter announcement response message (including an additional parameter announcement request update timer). UE-3 may provide an additional parameter announcement request update timer to UE-2 so that if the timer expires, and UE-3 still needs to obtain additional parameters, the additional parameter announcement process is repeated to continue requesting terminal information. If UE-2 does not initiate a new additional parameter announcement process after the additional parameter announcement request update timer expires, and UE-3 does not receive an additional parameter announcement request message from another terminal before the additional parameter announcement request update timer expires, UE-3 may stop announcing the requested terminal information.

[0205] 3a. UE-1 sends an Additional Parameter Announcement Response message (Additional Parameter Announcement Request Update Timer) to UE-2.

[0206] Step 3a may be similar to step 3, where UE-1 confirms receipt of the additional parameter announcement request message in step 2a, and UE-1 sends an additional parameter announcement response message (additional parameter announcement request update timer) to UE-2.

[0207] 4. UE-3 broadcasts additional information.

[0208] In the following description, the broadcasted additional information may include the requested terminal information (eg, terminal role information), and the additional information may also be referred to as additional parameters.

[0209] In some embodiments, UE-3 announces the requested terminal information by sending an additional information message. The announcement is repeated at a configurable frequency period (the configurable frequency is generally higher than the frequency corresponding to the additional parameter announcement request update timer) until no terminal requests UE-3 to announce the additional parameters, i.e., the same requested additional parameters as determined by the additional parameter announcement request update timer running in UE-3.

[0210] 4a. UE-1 broadcasts additional information.

[0211] Step 4a may be similar to step 4, with UE-1 announcing additional parameters of the request.

[0212] 5. UE-3 detects that the requested terminal information has been updated.

[0213] In some embodiments, UE-3 may detect whether new additional parameters are generated, or whether the requested additional parameters are updated. For example, the terminal role of UE-3 is updated to an SL reference terminal.

[0214] 5a. UE-1 detects that the requested terminal information has been updated.

[0215] Step 5a may be similar to step 5, where UE-1 detects whether new additional parameters are generated or whether the requested additional parameters are updated.

[0216] 6. UE-3 broadcasts additional information.

[0217] In some embodiments, when a new or updated requested additional parameter is detected in step 5, UE-3 may immediately send an additional information message to announce the additional parameter, and repeat the announcement at a frequency period configurable in step 4 until no other terminal requests to announce the requested additional parameter, that is, until the additional parameter announcement request update timer running in UE-3 times out.

[0218] 6a. UE-1 broadcasts additional information.

[0219] Step 5a may be similar to step 5, where upon detecting new or updated requested additional parameters, UE-1 may immediately send an additional information message to announce the additional parameters.

[0220] In some embodiments, if a link is established between related terminals, the link may be managed accordingly based on the updated terminal information, or ranging / SL positioning services may be performed based on the updated terminal information.

[0221] In some embodiments, if a link has not been established between related terminals, terminal discovery and / or selection can be performed based on updated terminal information, link establishment can be performed, and ranging / SL positioning services can be performed based on the updated terminal information.

[0222] As shown in Figure 6B, Figure 6B is a schematic diagram of the new terminal information announcement process in the embodiment of the present disclosure. In this embodiment, a new process is used to announce the required terminal information. In this embodiment, UE-1, UE-2, UE-3, network, and application may be included. For example, UE-2 acts as the target terminal, and the ranging / SL positioning service request can be triggered by the application layer or network of UE-2, and the absolute position of UE-2 is requested with the assistance of the positioning terminal near UE-2. UE-1 and UE-3 are near UE-2 and can support ranging / SL positioning services. UE-1 acts as the SL reference terminal, and UE-3 acts as the positioning terminal. The coverage information of UE-1 and UE-3 are both within coverage. It is found that UE-3 supports services that are sensitive to terminal information, and then the terminal information announcement process can be applied to transmit updated coverage information between related terminals.

[0223] 1. UE-2 discovers that UE-3 supports services that are sensitive to terminal information.

[0224] In some embodiments, UE-2 discovers that UE-3 supports ranging / SL positioning services and needs to update terminal information, such as coverage information and / or status information of the opposite terminal.

[0225] 2. UE-2 sends a terminal information announcement request message (an indication requesting terminal information) to UE-3.

[0226] In some embodiments, the terminal information announcement request message may be, for example, a UE information Announcement Request.

[0227] In some embodiments, UE-2 may send a Terminal Information Advertisement Request message to UE-3 to obtain updated terminal information, such as coverage information and / or status information of the opposite terminal. The Terminal Information Advertisement Request message may include an indication of the specific updated terminal information requested, such as updated coverage information and / or status information.

[0228] 3. UE-3 sends a terminal information announcement response message (terminal information announcement request update timer) to UE-2.

[0229] In some embodiments, the terminal information announcement response message may be, for example, a UE information Announcement Response.

[0230] In some embodiments, the terminal information announcement request update timer may be, for example, UE_Info_Announcement_Request_Refresh Timer.

[0231] In some embodiments, UE-3 acknowledges receipt of the request in step 2 by sending a terminal information announcement response message. If UE-3 provides a terminal information announcement request update timer to UE-2, then if the terminal information announcement request update timer expires and UE-3 still needs to obtain updated terminal information, the terminal information announcement request process is repeated. If UE-2 does not initiate the terminal information announcement process after the terminal information announcement request update timer expires, and no terminal information announcement request from other terminals is received before the terminal information announcement request update timer running in UE-3 expires, UE-3 stops announcing the requested terminal information.

[0232] In some embodiments, the terminal information announcement request update timer may not be used to control UE-3 to stop announcing the requested terminal information. For example, an explicit request may be applied to control UE-3 to stop announcing the requested terminal information. This control may be based on the service. For example, when the service is completed, UE-2 sends a request to UE-3 to instruct UE-3 to stop announcing the requested terminal information.

[0233] 4. UE-3 provides terminal information.

[0234] In some embodiments, UE-3 announces the requested terminal information by sending a terminal information message. For example, the message may be sent repeatedly based on a configurable frequency period (the configurable frequency is typically higher than the frequency corresponding to the terminal information announcement request update timer) until no terminal requests the announcement of the terminal information corresponding to the terminal information announcement request update timer running in UE-3, or a request is received instructing UE-3 to stop announcing the requested terminal information.

[0235] 5. UE-3 detects that the requested terminal information has been updated.

[0236] In some embodiments, UE-3 detects terminal information or updated terminal information, for example, coverage information and / or status information of UE-3 changes.

[0237] 6. UE-3 provides terminal information.

[0238] In some embodiments, upon detecting the terminal information or updated terminal information in step 5, UE-3 may immediately send a terminal information message to announce the requested terminal information. The message may be repeatedly sent based on the configurable frequency period in step 4 until no terminal requests announcement of the same terminal information. For example, until a terminal information announcement request update timer running in UE-3 expires or a request is received instructing UE-3 to stop announcing the requested terminal information.

[0239] In an embodiment of the present disclosure, if a link is established between related terminals, the link can be managed accordingly based on the updated terminal information, and / or ranging / SL positioning services can be performed based on the updated terminal information.

[0240] In the embodiments of the present disclosure, it is possible to support updating the terminal role and / or coverage information and / or status information and / or terminal capability information in terminal information-sensitive services, ensure the normal operation of the services, and support the selection of suitable terminals to establish links that match the services, and / or promptly release links that do not match the services, and avoid introducing irrelevant terminals into the services.

[0241] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., a RAN) in any of the above methods.

[0242] It should be understood that the division of the various units or modules in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. In addition, the units or modules in the device can be implemented in the form of a processor calling software: For example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0243] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0244] FIG7A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG7A , the terminal 7100 may include: at least one of a transceiver module 7101 and a processing module 7102. The terminal 7100 may include:

[0245] The transceiver module 7101 is configured to send terminal information related to a first service based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0246] In some embodiments of the present disclosure, the terminal information includes at least one of the following:

[0247] role information of the first terminal;

[0248] coverage information of the first terminal;

[0249] status information of the first terminal;

[0250] Capability information of the first terminal.

[0251] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0252] First information sent by the second terminal is received, where the first information is used to request the first terminal to send terminal information based on the first mode.

[0253] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0254] An additional parameter announcement request message sent by the second terminal is received, wherein the additional parameter announcement request message includes the first information.

[0255] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0256] An additional parameter announcement response message is sent to the second terminal, wherein the additional parameter announcement response message is used to indicate that the request to announce the terminal information has been accepted.

[0257] In some embodiments of the present disclosure, the additional parameter announcement response message includes a first timing duration, wherein the first timing duration is used by the second terminal to determine a timing for resending the first information.

[0258] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0259] A terminal information announcement request message sent by a second terminal is received, wherein the terminal information announcement request message includes the first information.

[0260] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0261] A terminal information announcement response message is sent to the second terminal, wherein the terminal information announcement response message is used to indicate that the request to announce the terminal information has been accepted.

[0262] In some embodiments of the present disclosure, the terminal information announcement response message includes a first timing duration, wherein the first timing duration is used by the second terminal to determine a timing for resending the first information.

[0263] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0264] The first information is received which is resent by the second terminal in response to determining that the first timing duration has timed out.

[0265] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0266] Based on the second timing duration, terminal information related to the first service is sent multiple times in the first mode, wherein the second timing duration is smaller than the first timing duration, and the first timing duration is used by the second terminal to determine when to send the first information again.

[0267] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0268] Third information sent by a third terminal is received, where the third information is used to request the first terminal to send terminal information based on the first mode.

[0269] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0270] A third timing duration is sent to the third terminal, where the third timing duration is used by the third terminal to determine a timing for sending the third information again.

[0271] In some embodiments of the present disclosure, the transceiver module 7101 is further configured to:

[0272] If the conditions are met, stop sending the terminal information related to the first service.

[0273] In some embodiments of the present disclosure, the conditions are met, including any of the following:

[0274] having received fourth information sent by the second terminal and / or the third terminal, wherein the fourth information is used to instruct the first terminal to stop sending terminal information;

[0275] The first business has been completed;

[0276] A stop sending request message has been received, wherein the stop sending request message is used to indicate that the first service has been completed and to instruct the first terminal to stop sending terminal information;

[0277] The first timer duration times out, and no information is received from another terminal requesting the first terminal to send terminal information. The first terminal triggers the sending of terminal information based on a request from a second terminal, and the first timer duration is configured by the first terminal for the second terminal.

[0278] Both the first timing duration and the third timing duration have timed out, and no information sent by other terminals to request the first terminal to send terminal information is received, wherein the first terminal triggers the sending of terminal information based on the requests of the second terminal and the third terminal, and the third timing duration is configured by the first terminal for the third terminal.

[0279] In some embodiments of the present disclosure, the processing module 7102 is configured to perform at least one of the following:

[0280] Determining whether to participate in the first service according to the terminal information;

[0281] managing a link between the first terminal and the second terminal according to the terminal information;

[0282] A first service is implemented according to the terminal information.

[0283] In some embodiments of the present disclosure, the first service is ranging or sidelink (SL) positioning service.

[0284] FIG7B is a schematic diagram of the structure of a terminal proposed in another embodiment of the present disclosure. As shown in FIG7B , the terminal 7200 may include: at least one of a transceiver module 7201 and a processing module 7202. The terminal 7200 may include:

[0285] The transceiver module 7201 is configured to receive terminal information related to a first service sent by a first terminal based on a first mode, wherein the first mode is a mode of sending information in a broadcast manner.

[0286] In some embodiments of the present disclosure, the terminal information includes at least one of the following:

[0287] role information of the first terminal;

[0288] coverage information of the first terminal;

[0289] status information of the first terminal;

[0290] Capability information of the first terminal.

[0291] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0292] First information is sent to a first terminal, where the first information is used to request the first terminal to send terminal information based on a first mode.

[0293] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0294] An additional parameter announcement request message is sent to the first terminal, where the additional parameter announcement request message includes first information.

[0295] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0296] An additional parameter announcement response message sent by the first terminal is received, wherein the additional parameter announcement response message is used to indicate that the request for announcing the terminal information has been accepted.

[0297] In some embodiments of the present disclosure, the additional parameter announcement response message includes a first timing duration, wherein the first timing duration is used by the second terminal to determine a timing for resending the first information.

[0298] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0299] A terminal information announcement request message is sent to the first terminal, wherein the terminal information announcement request message includes the first information.

[0300] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0301] A terminal information announcement response message sent by the first terminal is received, wherein the terminal information announcement response message is used to indicate that a request to announce terminal information has been accepted.

[0302] In some embodiments of the present disclosure, the terminal information announcement response message includes a first timing duration, wherein the first timing duration is used by the second terminal to determine a timing for resending the first information.

[0303] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0304] When the first timing duration times out, the first information is sent to the first terminal again.

[0305] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0306] Receive terminal information related to the first service sent multiple times by the first terminal based on the second timing duration in the first mode, wherein the second timing duration is less than the first timing duration, and the first timing duration is used by the second terminal to determine the time to send the first information again.

[0307] In some embodiments of the present disclosure, the processing module 7202 is further configured to perform at least one of the following:

[0308] Discovering and / or selecting a first terminal according to the terminal information, and establishing a link between the first terminal and a second terminal;

[0309] managing a link between the first terminal and the second terminal according to the terminal information;

[0310] A first service is implemented according to the terminal information.

[0311] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to:

[0312] Request the first terminal to stop sending terminal information related to the first service.

[0313] In some embodiments of the present disclosure, the transceiver module 7201 is further configured to perform any of the following:

[0314] Sending fourth information to the first terminal, where the fourth information is used to instruct the first terminal to stop sending terminal information;

[0315] A stop sending request message is sent to the first terminal, wherein the stop sending request message is used to indicate that the first service has been completed and to instruct the first terminal to stop sending terminal information.

[0316] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0317] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0318] Figure 8A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. Communication device 8100 can be a terminal, a network device, a chip, a chip system, or a processor that supports a terminal implementing any of the above methods, or a chip, a chip system, or a processor that supports a network device implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0319] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0320] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0321] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs the other steps.

[0322] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0323] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0324] The communication device 8100 described in the above embodiments may be a terminal, a network device, or a third entity, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0325] FIG8B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0326] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0327] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0328] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs the other steps.

[0329] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0330] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0331] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0332] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0333] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

[0334] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0335] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0336] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0337] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A method for obtaining terminal information, characterized in that, Executed by a first terminal, the method includes: Sending terminal information related to a first service based on a first mode, where the first mode is a mode of sending information in a broadcast manner.

2. The method according to claim 1, characterized in that, The terminal information includes at least one of the following: Role information of the first terminal; Coverage information of the first terminal; Status information of the first terminal; Capability information of the first terminal.

3. The method according to any one of claims 1-2, characterized in that, The method further includes: Receiving first information sent by a second terminal, where the first information is used to request the first terminal to send the terminal information based on the first mode.

4. The method according to claim 3, wherein The receiving the first information sent by the second terminal includes: Receiving an additional parameter announcement request message sent by the second terminal, where the additional parameter announcement request message includes the first information.

5. The method according to claim 4, wherein The method further includes: Sending an additional parameter announcement response message to the second terminal, where the additional parameter announcement response message is used to indicate that the request to announce the terminal information has been accepted.

6. The method according to claim 5, wherein The additional parameter announcement response message includes a first timing duration, where the first timing duration is used by the second terminal to determine the timing of sending the first information again.

7. The method according to claim 3, wherein The receiving the first information sent by the second terminal includes: Receiving a terminal information announcement request message sent by the second terminal, where the terminal information announcement request message includes the first information.

8. The method according to claim 7, wherein The method further includes: Sending a terminal information announcement response message to the second terminal, where the terminal information announcement response message is used to indicate that the request to announce the terminal information has been accepted.

9. The method according to claim 8, wherein The terminal information announcement response message includes a first timing duration, where the first timing duration is used by the second terminal to determine the timing of sending the first information again.

10. The method according to claim 6 or 9, characterized in that, The method further includes: Receiving the first information sent again by the second terminal in response to determining that the first timing duration has expired.

11. The method according to any one of claims 3-10, characterized in that, The sending the terminal information related to the first service based on the first mode includes: Sending the terminal information related to the first service multiple times in the first mode based on a second timing duration, where the second timing duration is less than the first timing duration, and the first timing duration is used by the second terminal to determine the timing of sending the first information again.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: Receiving third information sent by a third terminal, where the third information is used to request the first terminal to send the terminal information based on the first mode.

13. The method according to claim 12, characterized in that, The method further includes: Sending a third timing duration to the third terminal, where the third timing duration is used by the third terminal to determine the timing of sending the third information again.

14. The method according to any one of claims 1-13, characterized in that, The method further includes: Meeting a condition and stopping sending the terminal information related to the first service.

15. The method according to claim 14, wherein, The meeting the condition includes any one of the following: Having received fourth information sent by the second terminal and / or the third terminal, where the fourth information is used to instruct the first terminal to stop sending the terminal information; Having completed the first service; Having received a stop sending request message, where the stop sending request message is used to indicate that the first service has been completed and to instruct the first terminal to stop sending the terminal information; The first timing duration expires, and no information for requesting the first terminal to send the terminal information sent by other terminals is received again. Herein, the first terminal is triggered to send the terminal information based on the request of the second terminal, and the first timing duration is configured by the first terminal for the second terminal; Both the first timing duration and the third timing duration expire, and no information for requesting the first terminal to send the terminal information sent by other terminals is received again. Herein, the first terminal is triggered to send the terminal information based on the requests of the second terminal and the third terminal, and the third timing duration is configured by the first terminal for the third terminal.

16. The method according to any one of claims 1 to 15, characterized in that The method further includes at least one of the following: Determine whether to participate in the first service according to the terminal information; Manage the link between the first terminal and the second terminal according to the terminal information; Implement the first service according to the terminal information.

17. The method according to any one of claims 1-16, characterized in that, The first service is a ranging or sidelink SL positioning service.

18. A method for obtaining terminal information, characterized in that, Executed by a second terminal, the method includes: Receive terminal information related to the first service sent by the first terminal based on the first mode, where the first mode is a mode of sending information in a broadcast manner.

19. The method according to claim 18, wherein The terminal information includes at least one of the following: Role information of the first terminal; Coverage information of the first terminal; Status information of the first terminal; Capability information of the first terminal.

20. The method according to any one of claims 18-19, characterized in that, The method further includes: Send a first message to the first terminal, where the first message is used to request the first terminal to send the terminal information based on the first mode.

21. The method according to claim 20, wherein The sending the first message to the first terminal includes: Send an additional parameter announcement request message to the first terminal, where the additional parameter announcement request message includes the first message.

22. The method according to claim 21, wherein The method further includes: Receive an additional parameter announcement response message sent by the first terminal, where the additional parameter announcement response message is used to indicate that the request for announcing the terminal information has been accepted.

23. The method according to claim 22, characterized in that, The additional parameter announcement response message includes a first timing duration, where the first timing duration is used by the second terminal to determine the timing of sending the first message again.

24. The method according to claim 20, wherein The sending the first message to the first terminal includes: Send a terminal information announcement request message to the first terminal, where the terminal information announcement request message includes the first message.

25. The method according to claim 24, wherein The method further includes: Receive a terminal information announcement response message sent by the first terminal, where the terminal information announcement response message is used to indicate that it has accepted The request for announcing the terminal information.

26. The method according to claim 25, wherein The terminal information announcement response message includes a first timing duration, where the first timing duration is used by the second terminal to determine the timing of sending the first message again.

27. The method according to claim 23 or 26, wherein The method further includes: When the first timing duration expires, send the first message to the first terminal again.

28. The method according to any one of claims 20-27, characterized in that, The receiving the terminal information related to the first service sent by the first terminal based on the first mode includes: Receive the terminal information related to the first service sent by the first terminal multiple times in the first mode based on the second timing duration, where the second timing duration is less than the first timing duration, and the first timing duration is used by the second terminal to determine the timing for resending the first information.

29. The method according to any one of claims 18-28, characterized in that, The method further includes at least one of the following: Discover and / or select the first terminal according to the terminal information, and establish a link between the first terminal and the second terminal; Manage the link between the first terminal and the second terminal according to the terminal information; Implement the first service according to the terminal information.

30. The method according to any one of claims 18-29, characterized in that, The method further includes: Request the first terminal to stop sending the terminal information related to the first service.

31. The method according to claim 30, characterized in that, The request for the first terminal to stop sending the terminal information related to the first service includes any one of the following: Send a fourth message to the first terminal, where the fourth message is used to instruct the first terminal to stop sending the terminal information; Send a stop sending request message to the first terminal, where the stop sending request message is used to indicate that the first service has been completed and to instruct the first terminal to stop sending the terminal information.

32. A method for obtaining terminal information, characterized in that, The method includes: The first terminal sends terminal information related to the first service based on the first mode, where the first mode is a mode of sending information by broadcast; The second terminal receives the terminal information related to the first service.

33. A terminal, characterized in that, The terminal includes: A transceiver module, configured to send terminal information related to the first service based on the first mode, where the first mode is a mode of sending information by broadcast.

34. A terminal, characterized in that, The terminal includes: A transceiver module, configured to receive the terminal information related to the first service sent by the first terminal based on the first mode, where the first mode is a mode of sending information by broadcast.

35. A communication device, characterized in that, Includes: One or more processors; Wherein, the processor is configured to execute the terminal information acquisition method according to any one of claims 1-32.

36. A storage medium, wherein the storage medium stores instructions, characterized in that, When the instruction runs on the communication device, the communication device is caused to execute the terminal information acquisition method according to any one of claims 1-32.

Images