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WO2025065695A1 - Procédé d'indication d'informations et terminal - Google Patents

Procédé d'indication d'informations et terminal Download PDF

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Publication number
WO2025065695A1
WO2025065695A1 PCT/CN2023/123009 CN2023123009W WO2025065695A1 WO 2025065695 A1 WO2025065695 A1 WO 2025065695A1 CN 2023123009 W CN2023123009 W CN 2023123009W WO 2025065695 A1 WO2025065695 A1 WO 2025065695A1
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WO
WIPO (PCT)
Prior art keywords
discovery
terminal
service
parameter
message
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/123009
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English (en)
Chinese (zh)
Inventor
毛玉欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/123009 priority Critical patent/WO2025065695A1/fr
Priority to CN202380011445.7A priority patent/CN117529938A/zh
Publication of WO2025065695A1 publication Critical patent/WO2025065695A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to an information indication method and a terminal.
  • Ranging refers to determining the distance between two or more terminals and/or the direction between one terminal (i.e., the target terminal) and another terminal (i.e., the reference terminal) through the proximity-based services communication 5 (PC5) interface.
  • PC5 proximity-based services communication 5
  • the information indication method and terminal provided by the embodiments of the present disclosure are used to solve the problem of how a first terminal indicates to a second terminal to perform a direct discovery process based on a first service.
  • the embodiments of the present disclosure provide an information indication method and a terminal.
  • an information indication method is proposed, which is executed by a first terminal, including: sending a discovery request message or broadcasting a discovery notification message to a second terminal, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the first terminal can instruct the second terminal to perform a direct discovery process based on the first service by sending a discovery request message or broadcasting a discovery notification message to the second terminal.
  • the discovery request message or the discovery notification message includes a first parameter for indicating the service type of the first service to ensure normal execution of the first service.
  • an information indication method is proposed, which is executed by a second terminal, including: receiving a discovery request message sent by a first terminal or a discovery notification message sent by broadcast, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the second terminal may receive a discovery request message sent by the first terminal or a discovery notification message sent by broadcasting to determine to perform a direct discovery process of the first service, thereby ensuring normal execution of the first service.
  • an information indication method including: a first terminal sends a discovery request message to a second terminal or broadcasts a discovery notification message, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service; the second terminal receives the discovery request message sent by the first terminal or the discovery notification message sent by broadcast.
  • a first terminal comprising: a transceiver module, used to send a discovery request message or broadcast a discovery notification message to a second terminal, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • a second terminal including: a transceiver module, used to receive a discovery request message sent by a first terminal or a discovery notification message sent by broadcast, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • a first terminal comprising: one or more processors; a memory coupled to the processor, the memory storing instructions, and when the instructions are executed by the processor, the first terminal executes the method described in the first aspect.
  • a second terminal comprising: one or more processors; a memory coupled to the processor, the memory storing instructions, and when the instructions are executed by the processor, the second terminal is used to execute the method described in the second aspect.
  • a communication system including a first terminal and a second terminal, wherein the first terminal is configured to implement the method described in the first aspect, and the second terminal is configured to implement the method described in the second aspect.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the method described in the first aspect or the second aspect.
  • FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure.
  • FIG2A is a schematic diagram of a process of performing ranging SL positioning terminal discovery using a terminal with 5G ProSe function discovered by Model A provided in an embodiment of the present disclosure
  • FIG. 2B is a diagram of an embodiment of the present disclosure providing a method for performing SL ranging using a terminal with a 5G ProSe function discovered by Model B. Schematic diagram of the process of bit terminal discovery;
  • FIG2C is a schematic diagram of a process of performing ranging SL positioning group member discovery using a 5G ProSe function terminal discovered by Model A, provided in an embodiment of the present disclosure
  • FIG2D is a schematic diagram of a process of performing ranging SL positioning group member discovery using a 5G ProSe function terminal discovered by Model B, provided by an embodiment of the present disclosure
  • FIG2E is a schematic diagram of a ProSe direct discovery PC5 message type provided by an embodiment of the present disclosure.
  • FIG3A is a flow chart of an information indication method provided by an embodiment of the present disclosure.
  • FIG3B is a flow chart of another information indication method provided by an embodiment of the present disclosure.
  • FIG4A is a schematic diagram of a new parameter provided by an embodiment of the present disclosure as an independent PC5 service type parameter
  • FIG4B is a schematic diagram of a new parameter provided by an embodiment of the present disclosure as a parameter of an extended ProSe direct discovery PC5 message type;
  • FIG5A is a flowchart of another information indication method provided by an embodiment of the present disclosure.
  • FIG5B is a flowchart of another information indication method provided by an embodiment of the present disclosure.
  • FIG6A is a flowchart of another information indication method provided by an embodiment of the present disclosure.
  • FIG6B is a flowchart of another information indication method provided by an embodiment of the present disclosure.
  • FIG7A is a structural diagram of a first terminal provided by an embodiment of the present disclosure.
  • FIG7B is a structural diagram of a second terminal provided by an embodiment of the present disclosure.
  • FIG8A is a structural diagram of a communication device provided by an embodiment of the present disclosure.
  • FIG8B is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide an information indication method and a terminal.
  • an embodiment of the present disclosure proposes an information indication method, which is executed by a first terminal, including: sending a discovery request message or broadcasting a discovery notification message to a second terminal, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the first terminal can instruct the second terminal to perform a direct discovery process based on the first service by sending a discovery request message or broadcasting a discovery notification message to the second terminal.
  • the discovery request message or the discovery notification message includes a first parameter for indicating the service type of the first service to ensure normal execution of the first service.
  • the above method also includes: the first terminal receives a discovery response message sent by the second terminal, wherein the discovery response message is used to respond to the discovery request message sent by the first terminal, and the discovery response message includes a first parameter for indicating the service type of the first service.
  • the first terminal may receive a terminal discovery response message sent by the second terminal in response to the discovery request message, and determine that the second terminal performs a direct discovery process of the first service to ensure normal execution of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first terminal may use a discovery request message or a discovery notification message including a new parameter indicating the service type to instruct the second terminal to perform a direct discovery process of the first service to ensure normal execution of the first service.
  • the first parameter corresponds to a PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or a common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter of a specific value, and the second parameter is a content type value of a ProSe direct discovery PC5 message type parameter.
  • the first terminal can use ProSe to directly discover that the content type value of the PC5 message type parameter is a specific value to instruct the second terminal to perform a direct discovery process for the first service, reuse existing parameters, and indicate by taking specific values of the existing parameters. There is no need to use new signaling or messages, which can reduce signaling overhead.
  • the first service is ranging SL positioning.
  • the PC5 application is a ProSe application or a V2X application.
  • the direct discovery process includes at least one of the following:
  • the discovery request message includes at least one of the following:
  • a direct communication request message of the first service is provided.
  • the discovery notification message includes at least one of the following:
  • a discovery notification message of a group member of the first service is provided.
  • the discovery response message includes at least one of the following:
  • a group member discovery response message of the first service A group member discovery response message of the first service
  • a direct communication response message of the first service is provided.
  • an embodiment of the present disclosure proposes an information indication method, which is executed by a second terminal, including: receiving a discovery request message sent by a first terminal or a discovery notification message sent by broadcast, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the second terminal may receive a discovery request message sent by the first terminal or a discovery notification message sent by broadcasting to determine to perform a direct discovery process of the first service, thereby ensuring normal execution of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first parameter corresponds to a PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or a common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter of a specific value
  • the second parameter is a content type value of a ProSe direct discovery PC5 message type parameter.
  • the first service is ranging SL positioning.
  • the PC5 application is a ProSe application or a V2X application.
  • the direct discovery process includes at least one of the following:
  • the discovery request message includes at least one of the following:
  • a group member discovery request message of the first service A group member discovery request message of the first service.
  • the discovery notification message includes at least one of the following:
  • a direct communication request message of the first service is provided.
  • the discovery response message includes at least one of the following:
  • a group member discovery response message of the first service A group member discovery response message of the first service
  • a direct communication response message of the first service is provided.
  • an embodiment of the present disclosure proposes an information indication method, including: a first terminal sends a discovery request message to a second terminal or broadcasts a discovery notification message, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for a first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service; the second terminal receives the discovery request message sent by the first terminal or the discovery notification message sent by broadcast.
  • an embodiment of the present disclosure proposes a first terminal, which includes at least one of a transceiver module and a processing module; wherein the first terminal is used to execute an optional implementation method of the first aspect.
  • an embodiment of the present disclosure proposes a second terminal, which includes at least one of a transceiver module and a processing module; wherein the second terminal is used to execute the optional implementation method of the second aspect.
  • an embodiment of the present disclosure proposes a first terminal, which includes: one or more processors; wherein, a memory coupled to the processor, the memory storing instructions, when the instructions are executed by the processor, enables the first terminal to execute the optional implementation methods of the first aspect and the third aspect.
  • an embodiment of the present disclosure provides a second terminal, the second terminal comprising: one or more processors; a memory coupled to the processor, the memory storing instructions, when the instructions are executed by the processor, the second terminal is used to execute the second aspect, Optional implementation of the fourth aspect.
  • an embodiment of the present disclosure proposes a communication system, which includes: a first terminal and a second terminal; wherein the terminal is configured to execute the method described in the optional implementation manner of the first aspect, and the second terminal is configured to execute the method described in the optional implementation manner of the second aspect.
  • an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions.
  • the instructions When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.
  • an embodiment of the present disclosure proposes a program product.
  • the program product is executed by a communication device
  • the communication device executes the method described in the optional implementation of the first and second aspects.
  • an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.
  • an embodiment of the present disclosure provides a chip or a chip system.
  • the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.
  • the first terminal, the second terminal, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.
  • the embodiments of the present disclosure provide an information indication method and a terminal.
  • the information indication method and the information processing method, the communication method and the like terms can be interchangeable.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • 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.
  • 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 of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • "at least one of A and B", “A and/or B", “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to 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); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.
  • the recording method of "A or B” may include the following technical solutions according to 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).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • 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 restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • 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”
  • the "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”.
  • 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”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • 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 lower than”, and “above” 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”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments.
  • Terms such as “device”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • terminal In some embodiments, the terms "terminal”, “terminal device”, “user equipment (UE)”, “user terminal” “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.
  • the access network device, the core network device, or the network device can be replaced by a terminal.
  • the various embodiments of the present disclosure can also be applied to a structure in which the access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.).
  • D2D device-to-device
  • V2X vehicle-to-everything
  • it can also be set as a structure in which the terminal has all or part of the functions of the access network device.
  • terms such as "uplink” and "downlink” can also be replaced by terms corresponding to communication between terminals (for example, "side”).
  • uplink channels, downlink channels, etc. can be replaced by side channels
  • uplinks, downlinks, etc. can be replaced by side links.
  • the terminal may be replaced by an access network device, a core network device, or a network device.
  • the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, 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 at least one of a wireless terminal device in a smart home, but is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, 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
  • the network device 102 may include at least one of an access network device and a core network device.
  • the access network device is, for example, a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a baseband 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 Wi-Fi system, but is not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB node
  • the core network device may be a device including a first network function, a second network function, etc., or may be a plurality of devices or a group of devices including all or part of the first network function, the second network function, etc.
  • the network function may be virtual or physical.
  • 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).
  • EPC evolved packet core
  • 5GCN 5G core network
  • NGC next generation core
  • the first network function is, for example, an access and mobility management function (AMF).
  • AMF access and mobility management function
  • the first network function is used for access control and mobility management of the terminal accessing the operator network, including, for example, mobility status management, allocation of temporary user identity, authentication and authorization of users, etc., and its name is not limited thereto.
  • 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 proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE long term evolution
  • LTE-A LTE-advanced
  • LTE-B LTE-beyond
  • SUPER 3G IMT-Advanced
  • 4G fourth generation mobile communication system
  • 5G fifth generation mobile communication system
  • 5G new radio NR
  • FAA new radio access technology
  • RAT new radio
  • NX new radio access
  • FX future generation radio access
  • GSM global System for mobile communications
  • CDMA2000 compact disc-to-everything
  • UMB ultra mobile broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 ultra wide band
  • UWB ultra wide band
  • Bluetooth registered trademark
  • PLMN public land mobile network
  • D2D device to device
  • M2M machine to machine
  • IoT internet of things
  • V2X vehicle-to-everything
  • system using other communication methods next generation systems expanded based on them, and the like.
  • a number of systems may also be applied in combination (for example, combination of LTE or LTE-A with 5G, and the like).
  • Distance measurement refers to determining the distance between multiple terminals and/or the direction between one terminal (i.e., the target terminal) and another terminal (i.e., the reference terminal) through the PC5 interface.
  • Positioning terminal A sidelink (SL) reference terminal whose position is known or can be known using Uu-based positioning.
  • the positioning terminal can be used to determine the position of a target terminal using sidelink positioning.
  • SL reference terminal a terminal that supports the positioning of a target terminal, for example, by sending and/or receiving reference signals for positioning, using a sidelink (SL) to provide positioning-related information, etc.
  • SL positioning client terminal A third-party terminal other than the SL reference terminal and the target terminal, which initiates ranging/sidelink positioning service requests on behalf of the applications resident on it.
  • the SL positioning client terminal does not have to support ranging/sidelink positioning functions, but communication must be established between the SL positioning client terminal and the SL reference terminal/target terminal through PC5 or the 5th generation core (5GC) to transmit service requests and results.
  • PC5 the 5th generation core
  • SL Positioning Server Terminal A terminal that provides method determination, auxiliary data distribution and/or position calculation functions for services based on sidelink positioning and ranging. It interacts with other terminals through PC5 as needed to determine ranging/SL positioning methods, distribute auxiliary data and Calculate the location of the target terminal. If any function is supported, the target terminal or SL reference terminal can act as an SL positioning server terminal.
  • Target terminal A terminal that measures distance, direction and/or position using SL in ranging-based service SL positioning with the support of one or more SL reference terminals.
  • the ranging-based service provides the distance between two or more terminals and/or the direction of one terminal (ie, a target terminal) to another terminal (ie, a reference terminal) through PC5 operation.
  • the sidelink positioning provides the absolute position, relative position or ranging information of the terminal by positioning using PC5.
  • the positioning terminal can be used to determine the absolute position of the target terminal using sidelink positioning.
  • Ranging/sidelink positioning operations can be performed via network-assisted, network-based, or terminal-only operations:
  • 5GC network function (NF)(s) is involved in service request processing and result calculation.
  • 5GC NF(s) participate in service request processing and assist terminals in result calculation.
  • the ranging/sidelink positioning service request can be initiated by a terminal (i.e., SL positioning client terminal, target terminal, SL reference terminal), 5GC NF, location services (LCS) client or application function (AF). Therefore, ranging/sidelink positioning terminal discovery and selection are required through PC5 to support ranging/sidelink positioning services.
  • a terminal i.e., SL positioning client terminal, target terminal, SL reference terminal
  • 5GC NF location services
  • LCS location services
  • AF application function
  • the message used for terminal discovery in the terminal discovery process cannot indicate that the discovery process is used for a specific service, which is a problem that needs to be solved urgently.
  • the vehicle to X (V2X) communication process on the PC5 reference point supports terminal discovery of V2X.
  • V2X vehicle to X
  • the service type in the layer 2 link establishment process indicates "ranging/sidelink positioning"; when using the broadcast mode or multicast mode V2X communication process, the service type indicates "ranging/sidelink positioning".
  • Terminal discovery that supports 5G proximity-based services (ProSe) (including commercial and public safety use cases) supports both Model A and Model B discovery.
  • the discovery type indicates "ranging/sidelink positioning"; during the discovery of ranging/SL positioning group members, the application layer group identifier (ID) indicates the distance/sidelink positioning group to which the terminal belongs.
  • the discovery of Model A can use a single discovery protocol message (Announcement), and the first terminal that publishes the message sends a discovery notification message.
  • the discovery of Model B Model B can use two discovery protocol messages (request and response), and the first terminal (discoverer terminal) sends a discovery request message, and the second terminal (discovered terminal) sends a discovery response message.
  • the process of performing ranging SL positioning terminal discovery on a terminal with 5G ProSe function discovered using Model A is used.
  • the first terminal (or announcing UE) (UE-1) sends a ranging/SL positioning notification message.
  • the ranging/SL positioning notification message includes the type of discovery message, security protection elements, ranging and sidelink positioning protocol (RSPP) metadata information and the user information ID of the first terminal.
  • RSPP sidelink positioning protocol
  • Model B discovery a process for discovering a terminal that supports 5G ProSe for ranging/SL positioning is used in Model B discovery.
  • the first terminal (or discoverer terminal) (UE-1) sends a ranging/SL positioning request message.
  • the ranging/SL positioning request message includes the type of discovery message, security protection elements, user information ID of the discoverer terminal, target information, user information ID of the first terminal, and optional RSPP metadata information.
  • Step 2 The second terminal (also referred to as the discoverer terminal) that matches the ranging/SL positioning request message (e.g., RSPP metadata information) responds to the first terminal using a ranging/SL positioning response message.
  • the ranging/SL positioning response message includes a discovery message type, a security protection element, RSPP metadata information, and a user information ID of the second terminal.
  • Model A discovery a process that supports 5G ProSe for ranging/SL positioning group member discovery is used in Model A discovery.
  • the first terminal (or announcing UE) (UE-1) sends a ranging/SL positioning group member discovery notification message.
  • the notification message includes the type of discovery message, the user information ID of the first terminal, the group ID and RSPP metadata information.
  • Model B discovery a process that supports 5G ProSe for ranging/SL positioning group member discovery is used in Model B discovery.
  • the first terminal also called the discoverer terminal (UE-1) sends a ranging/SL positioning group member discovery request message.
  • the request message includes the type of discovery message, group ID, (optional) user information ID of the first terminal and optional RSPP metadata information.
  • Step 2 The second terminal (also referred to as the discovered terminal) that matches the parameter value (including the group ID and user information ID of the first terminal) contained in the ranging/SL positioning group member discovery request message responds to the first terminal using a ranging/SL positioning group member discovery response message.
  • the ranging/SL positioning response message includes the type of discovery message, the second user information ID, RSPP metadata information and the group ID.
  • a 5G ProSe direct discovery message is sent by a terminal through a PC5 interface for open 5G ProSe direct discovery and restricted 5G ProSe direct discovery.
  • the corresponding discovery messages include a ProSe direct discovery PC5 message type (ProSe direct discovery PC5 message type), wherein the ProSe direct discovery PC5 message type includes three parts: "discovery type value", "content type value” and "mode type value”, and the message type of each discovery message is identified by different values of the three parameters of the ProSe direct discovery PC5 message type.
  • the value of the ProSe direct discovery PC5 message type (ProSe direct discovery PC5 message type) in the open 5G ProSe direct discovery notification message is: the discovery type value is "Open discovery” and the content type value is "Announcement”.
  • the value of the ProSe direct discovery PC5 message type in the restricted 5G ProSe direct discovery notification message is: the discovery type value is "Restricted discovery” and the content type value is "Announcement”.
  • the value of the ProSe direct discovery PC5 message type in the restricted 5G ProSe direct discovery request message is: the discovery type value is "Restricted discovery” and the content type value is "Solicitation”.
  • the value of the ProSe direct discovery PC5 message type in the restricted 5G ProSe direct discovery response message is: the discovery type value is "Restricted discovery", and the content type value is "response”.
  • the value of the ProSe direct discovery PC5 message type in the ProSe PC5 discovery message of the group member discovery notification is: the discovery type value is "Restricted discovery”, the content type value is “Group member discovery announcement/group member discovery response”, and the model type value is "Model A”.
  • the value of the ProSe direct discovery PC5 message type in the ProSe PC5 discovery message of the group member discovery request is: the discovery type value is "Restricted discovery”, the content type value is “Group member discovery solicitation”, and the model type value is "Model B”.
  • the value of the ProSe direct discovery PC5 message type in the ProSe PC5 discovery message of the group member discovery response is: the discovery type value is "Restricted discovery”, the content type value is “Group member discovery announcement/group member discovery response”, and the model type value is "Model B”.
  • ProSe direct discovery PC5 message type parameters are shown in FIG. 2E and Table 1 below,
  • ProSe directly discovers that the PC5 message type is a type 1 information element with a length of 1 octet.
  • Table 1 above shows the parameters of the ProSe direct discovery PC5 message type.
  • the first terminal needs to instruct the second terminal to perform a direct discovery process based on the first service.
  • the embodiments of the present disclosure provide an information indication method and a terminal, wherein the method executed by the first terminal includes: sending a discovery request message or broadcasting a discovery notification message to the second terminal, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for the first service, and the discovery request message or the discovery notification message includes a first parameter for indicating the service type of the first service.
  • the first terminal can instruct the second terminal to perform a direct discovery process based on the first service by sending a discovery request message or broadcasting a discovery notification message to the second terminal, and the discovery request message or the discovery notification message includes a first parameter for indicating the service type of the first service, so as to ensure the normal execution of the first service.
  • FIG3A is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to an information indication method, and the method includes:
  • the first terminal sends a discovery request message to the second terminal.
  • the second terminal receives a discovery request message sent by the first terminal.
  • the discovery request message is used to instruct a direct discovery process of the first service.
  • the first service is ranging SL positioning, but is not limited thereto, and the first service may also be other services.
  • the discovery request message includes a first parameter for indicating a service type of the first service.
  • the first terminal sends a discovery request message to the second terminal, the discovery request message is used to indicate a direct discovery process of the first service, and the discovery request message includes a first parameter for indicating a service type of the first service.
  • the second terminal can identify the discovery request message as a discovery message for a ranging SL positioning process.
  • the first parameter is a new parameter indicating a service type.
  • the new parameter is a service type (Service type), but is not limited to this, and the new parameter may also have other names.
  • Service type Service type
  • the new parameter may also have other names.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is a new parameter indicating a service type
  • the first parameter corresponds to a PC5 application
  • the first parameter may be a PC5 application identifier
  • the first parameter is a new parameter indicating a service type
  • the first parameter corresponds to a plurality of PC5 applications
  • the first parameter is a common prefix or a common sub-prefix of the plurality of PC5 application identifiers.
  • the first parameter is a new parameter indicating a service type
  • the first parameter PC5 is a value of an application type
  • the new parameter is a service type
  • the service type corresponds to one or more PC5 applications.
  • the service type can be indicated by a PC5 application identifier.
  • the service type can be indicated by a common part, such as a common prefix or a common sub-prefix of the ProSe application identifier assigned to the ProSe applications under the same service type.
  • the service type can be a value of the PC5 application type, and the service type can be separated from the encoding of the application identifier, wherein the service type can be defined independently of the application layer.
  • the new parameter is a schematic diagram of an independent PC5 service type parameter.
  • the service type value is included in the ProSe direct discovery message together with the existing ProSe direct discovery PC5 message type to identify the ProSe direct discovery message type for the first service.
  • the service type value may be included in the ProSe direct discovery message as a sub-parameter of the extended ProSe direct discovery PC5 message type to identify the ProSe direct discovery message type for the first service.
  • the new parameters are a schematic diagram of extended ProSe direct discovery PC5 message type parameters.
  • the service type may be a PC5 service type, or may also be a ProSe service type or a V2X service type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a ProSe direct discovery PC5 message type parameter.
  • the second parameter is the content type value of the ProSe direct discovery PC5 message type parameter.
  • the “Content Type Value” of the “ProSe Direct Discovery PC5 Message Type Parameter” is extended to identify a message for PC5 direct discovery for ranging SL positioning.
  • ProSe directly discovers that the PC5 message type is a type 1 information element with a length of 1 octet.
  • the "content type value" of the "ProSe direct discovery PC5 message type parameter” is extended, for example, as shown in Table 2 below, the "discovery type value” and “discovery mode value” of the "ProSe direct discovery PC5 message type parameter” can be directly reused and taken as required.
  • each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
  • the content type "1001" group member discovery notification of ranging sidelink positioning service/group member discovery response of ranging sidelink positioning service
  • the content type "1001" is used for the group member discovery notification message of the first terminal (announcing) of Model A or the group member discovery response message of the second terminal (discovered terminal) of Model B, but is not limited to this.
  • the content type "1001" can also be used to indicate Indicates other operations.
  • the content type "1010” (group member discovery request for ranging sidelink positioning service) is used for the discovery request message of the first terminal (discoverer terminal) of Model B, but is not limited to this.
  • the content type "1010” can also be used to indicate other operations.
  • the content type "1110" terminal discovery notification of ranging sidelink positioning service/terminal discovery response of ranging sidelink positioning service
  • the content type "1110” is used for the discovery notification message of the first terminal (announcing) of Model A or the discovery response message of the second terminal (discovered terminal) of Model B, but is not limited to this.
  • the content type "1110" can also be used to indicate other operations.
  • the content type "1111” (terminal discovery request for ranging sidelink positioning service) is used for the discovery request message of the first terminal (discoverer terminal) of Model B, but is not limited to this.
  • the content type "1111” can also be used to indicate other operations.
  • the content type can also be other values other than the examples in Table 2 above to indicate the content indicated by any one of "1001”, “1010”, “1110” and “1111”, and the embodiments of the present disclosure do not impose specific restrictions on this.
  • the PC5 application is a ProSe application or a vehicle network V2X application, but is not limited thereto and may also be other applications.
  • the direct discovery process includes at least one of the following:
  • the V2X service type corresponding to the V2X application identifier may be used to identify the message to be sent for ranging SL positioning.
  • the PC5 service type is shared with a terminal supporting V2X and a terminal supporting ProSe to identify messages for ranging SL positioning, an additional PC5 service type indicating the ranging SL positioning service will be included in the relevant process.
  • the discovery request message includes at least one of the following:
  • a direct communication request message of the first service is provided.
  • the discovery request message sent by the first terminal is a direct discovery request message of the first service, for example, the direct discovery request message of the first service is a Ranging/SL Positioning Solicitation message.
  • the direct discovery request message of the first service also includes a discovery message type, a security protection element, a user information ID of the first terminal, a group ID, a user information ID of the second terminal, and at least one of RSPP metadata information.
  • the discovery request message sent by the first terminal is a group member discovery request message of the first service, for example, the group member discovery request message of the first service is Ranging/SL Positioning Group member discovery Solicitation message.
  • the group member discovery request message of the first service further includes at least one of the discovery message type, the user information ID of the first terminal, the group ID, the second user information ID, and RSPP metadata information.
  • the discovery request message sent by the first terminal is a direct communication request message of the first service.
  • the discovery message type may be, for example, the above service type + the existing ProSe direct discovery PC5 message type, or an extended ProSe direct discovery PC5 message type including the service type, or a ProSe direct discovery PC5 message type with an extended content type value.
  • the second terminal sends a discovery response message to the first terminal.
  • the first terminal receives a discovery response message sent by the second terminal.
  • the discovery response message is used to respond to the discovery request message sent by the first terminal.
  • the discovery response message includes a first parameter for indicating a service type of the first service.
  • the relevant description of the first parameter can refer to the relevant description in the above S201A, which will not be repeated here.
  • the discovery response message includes at least one of the following:
  • a group member discovery response message of the first service A group member discovery response message of the first service
  • a direct communication response message of the first service is provided.
  • the discovery response message sent by the second terminal is a direct discovery response message (Ranging/SL Positioning Response message) of the first service.
  • the direct discovery response message of the first service also includes a discovery message type, a security protection At least one of the protection element, RSPP metadata information, and the user information ID of the second terminal.
  • the discovery response message sent by the second terminal is the group member discovery response message of the first service (Ranging/SL Positioning Group member discovery Response message).
  • the group member discovery response message of the first service further includes at least one of a discovery message type, a user information ID of the second terminal, RSPP metadata information, and a group ID.
  • the discovery response message sent by the second terminal is a direct communication response message of the first service.
  • the discovery message type may be, for example, the above service type + the existing ProSe direct discovery PC5 message type, or an extended ProSe direct discovery PC5 message type including the service type, or a ProSe direct discovery PC5 message type with an extended content type value.
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “code element”, “codebook”, “codeword”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • terms such as “uplink”, “uplink”, “physical uplink” can be interchangeable, and terms such as “downlink”, “downlink”, “physical downlink” can be interchangeable, and terms such as “side”, “sidelink”, “side communication”, “sidelink communication”, “direct connection”, “direct link”, “direct communication”, “direct link communication” can be interchangeable.
  • terms such as “moment”, “time point”, “time”, and “time position” can be interchangeable, and terms such as “duration”, “period”, “time window”, “window”, and “time” can be interchangeable.
  • obtain can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.
  • terms such as “certain”, “preset”, “preset”, “set”, “indicated”, “some”, “any”, and “first” can be interchangeable, and "specific A”, “preset A”, “preset A”, “set A”, “indicated A”, “some A”, “any A”, and “first A” can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.
  • the communication method involved in the embodiment of the present disclosure may include at least one of S301A to S302A.
  • S301A may be implemented as an independent embodiment
  • S302A may be implemented as an independent embodiment, but is not limited thereto.
  • S302A is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG3B is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to an information indication method, and the method includes:
  • the first terminal broadcasts a discovery notification message to the second terminal.
  • the second terminal receives a discovery notification message sent by the first terminal.
  • the discovery notification message is used to instruct a direct discovery process of the first service.
  • the first service is ranging SL positioning, but is not limited thereto, and the first service may also be other services.
  • the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the first terminal sends a discovery notification message to the second terminal
  • the discovery notification message is used to indicate a direct discovery process of the first service
  • the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the second terminal can identify the discovery notification message as a discovery message for a ranging SL positioning process.
  • the first parameter is a new parameter indicating a service type.
  • the new parameter is a service type (Service type), but is not limited to this, and the new parameter may also have other names.
  • Service type Service type
  • the new parameter may also have other names.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or a common sub-prefix of multiple PC5 application identifiers; or A parameter is the value of the PC5 application type.
  • the first parameter is a new parameter indicating a service type
  • the first parameter corresponds to a PC5 application
  • the first parameter may be a PC5 application identifier
  • the first parameter is a new parameter indicating a service type
  • the first parameter corresponds to a plurality of PC5 applications
  • the first parameter is a common prefix or a common sub-prefix of the plurality of PC5 application identifiers.
  • the first parameter is a new parameter indicating a service type
  • the first parameter PC5 is a value of an application type
  • the new parameter is a service type
  • the service type corresponds to one or more PC5 applications.
  • the service type can be indicated by a PC5 application identifier.
  • the service type can be indicated by a common part, such as a common prefix or a common sub-prefix of the ProSe application identifier assigned to the ProSe applications under the same service type.
  • the service type can be a value of the PC5 application type, and the service type can be separated from the encoding of the application identifier, wherein the service type can be defined independently of the application layer.
  • the new parameter is a schematic diagram of an independent PC5 service type parameter.
  • the service type value is included in the ProSe direct discovery message together with the existing ProSe direct discovery PC5 message type to identify the ProSe direct discovery message type for the first service.
  • the service type value may be included in the ProSe direct discovery message as a sub-parameter of the extended ProSe direct discovery PC5 message type to identify the ProSe direct discovery message type for the first service.
  • the new parameters are a schematic diagram of extended ProSe direct discovery PC5 message type parameters.
  • the service type may be a PC5 service type, or may also be a ProSe service type or a V2X service type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a ProSe direct discovery PC5 message type parameter.
  • the second parameter is the content type value of the ProSe direct discovery PC5 message type parameter.
  • the “Content Type Value” of the “ProSe Direct Discovery PC5 Message Type Parameter” is extended to identify a message for PC5 direct discovery for ranging SL positioning.
  • ProSe directly discovers that the PC5 message type is a type 1 information element with a length of 1 octet.
  • the “Content Type Value” of the “ProSe Direct Discovery PC5 Message Type Parameter” is extended as shown in Table 2 above.
  • the PC5 application is a ProSe application or a vehicle network V2X application, but is not limited thereto and may also be other applications.
  • the direct discovery process includes at least one of the following:
  • the V2X service type corresponding to the V2X application identifier may be used to identify the message to be sent for ranging SL positioning.
  • the PC5 service type is shared with a terminal supporting V2X and a terminal supporting ProSe to identify messages for ranging SL positioning, an additional PC5 service type indicating the ranging SL positioning service will be included in the relevant process.
  • the discovery notification message includes at least one of the following:
  • a discovery notification message of a group member of the first service is provided.
  • the discovery request message sent by the first terminal is a direct discovery request message of the first service, for example, the direct discovery request message of the first service is a Ranging/SL Positioning Announcement message.
  • the first terminal sends a discovery notification message of the first service
  • the discovery notification message of the first service also includes at least one of a discovery message type, a security protection element, RSPP metadata information, and a user information ID of the first terminal.
  • the discovery request message sent by the first terminal is a discovery notification message of the group member of the first service, for example, the discovery notification message of the group member of the first service is a Ranging/SL Positioning Group member discovery Announcement message.
  • the first terminal sends a discovery notification message of the group members of the first service
  • the discovery notification message of the group members of the first service also includes at least one of the discovery message type, the user information ID of the first terminal, the group ID and RSPP metadata information.
  • the discovery message type may be, for example, the above service type + the existing ProSe direct discovery PC5 message type, or an extended ProSe direct discovery PC5 message type including the service type, or an extended content type value. ProSe directly discovers the PC5 message type.
  • FIG5A is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG5A , an embodiment of the present disclosure relates to an information indication method, which is executed by a first terminal and includes:
  • S501A can refer to the optional implementation of S301A in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.
  • the first terminal sends a discovery request message to the second terminal, but is not limited thereto, and the discovery request message may also be sent to other entities.
  • the discovery request message is used to instruct a direct discovery process of the first service, and the discovery request message includes a first parameter used to indicate a service type of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a neighbor service ProSe direct discovery PC5 message type parameter.
  • the first service is ranging sidelink SL positioning.
  • the PC5 application is a ProSe application or a vehicle-to-everything (V2X) application.
  • V2X vehicle-to-everything
  • the direct discovery process includes at least one of the following:
  • the discovery request message includes at least one of the following:
  • a direct communication request message of the first service is provided.
  • S502A can refer to the optional implementation of S302A in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.
  • the first terminal receives a discovery response message sent by the second terminal, but is not limited thereto, and may also receive a discovery response message sent by other entities.
  • the first terminal obtains a discovery response message specified by the protocol.
  • the first terminal obtains a discovery response message from an upper layer(s).
  • the first terminal performs processing to obtain a discovery response message.
  • S502A is omitted, and the first terminal autonomously implements the function indicated by the discovery response message, or the above function is default or acquiescent.
  • the discovery response message is used to respond to the discovery request message sent by the first terminal, and the discovery response message includes a first parameter used to indicate a service type of the first service.
  • the relevant description of the first parameter can refer to the relevant description in the above embodiment, and will not be repeated here.
  • the discovery response message includes at least one of the following:
  • a group member discovery response message of the first service A group member discovery response message of the first service
  • a direct communication response message of the first service is provided.
  • the communication method involved in the embodiment of the present disclosure may include at least one of S501A to S502A.
  • S501A may be implemented as an independent embodiment
  • S502A may be implemented as an independent embodiment, but is not limited thereto.
  • S502A is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG5B is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG5B , the present disclosure embodiment relates to an information indication method, which is executed by a first terminal and includes:
  • S501B can refer to the optional implementation of S301B in Figure 3B, and the implementation involved in Figure 3B. Other related parts in the example will not be repeated here.
  • the first terminal sends a discovery notification message to the second terminal, but is not limited thereto, and the discovery notification message may also be sent to other entities.
  • the discovery notification message is used to instruct a direct discovery process of the first service, and the discovery notification message includes a first parameter used to indicate a service type of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a neighbor service ProSe direct discovery PC5 message type parameter.
  • the first service is ranging sidelink SL positioning.
  • the PC5 application is a ProSe application or a vehicle-to-everything (V2X) application.
  • V2X vehicle-to-everything
  • the discovery notification message includes at least one of the following:
  • a discovery notification message of a group member of the first service is provided.
  • FIG6A is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG6A , the present disclosure embodiment relates to an information indication method, which is executed by a second terminal, and includes:
  • S601A can refer to the optional implementation of S301A in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.
  • the second terminal receives the discovery request message sent by the first terminal, but is not limited thereto, and may also receive the discovery request message sent by other entities.
  • the second terminal obtains a discovery request message specified by the protocol.
  • the second terminal obtains a discovery request message from an upper layer(s).
  • the second terminal performs processing to obtain a discovery request message.
  • S601A is omitted, and the second terminal autonomously implements the function indicated by the discovery request message, or the above function is default or acquiescent.
  • the discovery request message is used to instruct a direct discovery process of the first service, and the discovery request message includes a first parameter used to indicate a service type of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a neighbor service ProSe direct discovery PC5 message type parameter.
  • the first service is ranging sidelink SL positioning.
  • the PC5 application is a ProSe application or a vehicle-to-everything (V2X) application.
  • V2X vehicle-to-everything
  • the direct discovery process includes at least one of the following:
  • the discovery request message includes at least one of the following:
  • a direct communication request message of the first service is provided.
  • S602A send a discovery response message.
  • S602A can refer to the optional implementation of S302A in Figure 3A and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.
  • the second terminal sends a discovery response message to the first terminal, but is not limited thereto, and the discovery response message may also be sent to other entities.
  • the discovery response message is used to respond to the discovery request message sent by the first terminal, and the discovery response message includes: A first parameter for indicating a service type of the first service.
  • the relevant description of the first parameter can refer to the relevant description in the above embodiment, and will not be repeated here.
  • the discovery response message includes at least one of the following:
  • a group member discovery response message of the first service A group member discovery response message of the first service
  • a direct communication response message of the first service is provided.
  • the communication method involved in the embodiment of the present disclosure may include at least one of S601A to S602A.
  • S601A may be implemented as an independent embodiment
  • S602A may be implemented as an independent embodiment, but is not limited thereto.
  • S602A is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG6B is an interactive schematic diagram of an information indication method according to an embodiment of the present disclosure. As shown in FIG6B , the present disclosure embodiment relates to an information indication method, which is executed by a second terminal, and includes:
  • S601B can refer to the optional implementation of S301B in Figure 3B and other related parts in the embodiment involved in Figure 3B, which will not be repeated here.
  • the second terminal receives the discovery notification message sent by the first terminal, but is not limited thereto, and may also receive the discovery notification message sent by other entities.
  • the second terminal obtains a discovery notification message specified by the protocol.
  • the second terminal obtains a discovery notification message from an upper layer(s).
  • the second terminal performs processing to obtain the discovery notification message.
  • S601B is omitted, and the second terminal autonomously implements the function indicated by the discovery notification message, or the above function is default or acquiescent.
  • the discovery notification message is used to instruct a direct discovery process of the first service
  • the discovery request message includes a first parameter used to indicate a service type of the first service.
  • the first parameter is a new parameter indicating a service type.
  • the first parameter corresponds to a proximity service communication PC5 application, and the first parameter is a PC5 application identifier; or the first parameter corresponds to multiple PC5 applications, and the first parameter is a common prefix or common sub-prefix of multiple PC5 application identifiers; or the first parameter is the value of the PC5 application type.
  • the first parameter is implemented by a second parameter that is a specific value
  • the second parameter is a content type value of a neighbor service ProSe direct discovery PC5 message type parameter.
  • the first service is ranging sidelink SL positioning.
  • the PC5 application is a ProSe application or a vehicle-to-everything (V2X) application.
  • V2X vehicle-to-everything
  • the discovery notification message includes at least one of the following:
  • a discovery notification message of a group member of the first service is provided.
  • a solution is proposed to identify messages for direct discovery by PC 5 for ranging SL positioning.
  • a method for identifying a message directly discovered by PC5 for ranging SL positioning includes:
  • a method is defined to identify the message that PC5 directly discovers for ranging SL positioning, defining a new message or reusing an existing message.
  • each message that the PC 5 directly sees is identified using a parameter with a specific value for ranging SL positioning, and the message is processed accordingly in a corresponding process.
  • a new parameter is defined to identify the message that PC5 directly discovers for ranging SL positioning.
  • the service type parameter indicates a type of PC5 service, which identifies different service types of PC5 services.
  • the ranging SL positioning service is a type of PC5 service identified by a value of the service type, including:
  • the service type corresponds to one or more PC5 applications. If the service type corresponds to one PC5 application, the service type may be indicated by a PC5 application identifier. If the service type corresponds to multiple PC5 applications, the service type may be a common part, such as a common prefix or sub-prefix of the ProSe application identifier assigned to the ProSe applications under the same service type. Alternatively, the service type may be a value of the PC5 application type, and the service type may be separated from the encoding of the application identifier, wherein the service type may be defined independently of the application layer.
  • the traffic type may be encoded as a separate parameter or as a sub-parameter of another parameter.
  • the service type may be defined as a PC5 service type, as shown in FIG. 4A or 4B , or may be defined as a ProSe service type or a V2X service type.
  • the service type may be shared with terminals supporting V2X and terminals supporting ProSe.
  • the process of terminal discovery using a terminal supporting 5G ProSe for ranging SL positioning is used in Model A discovery.
  • Step 1 the first terminal (UE-1) sends a ranging SL positioning notification message.
  • the ranging SL positioning notification message includes the type of discovery message, the service type indicating ranging SL positioning or the ProSe application identifier indicating ranging SL positioning, the security protection element, the RSPP metadata information, and the user information ID of the first terminal.
  • the type of discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery", the content type value is "Announcement”, and the mode type value is "Model A”.
  • the process of discovering a terminal that supports 5G ProSe for ranging SL positioning is used in Model B discovery.
  • Step 1 the first terminal (also called the discoverer terminal) (UE-1) sends a ranging/SL positioning request message.
  • the ranging SL positioning request message includes the type of discovery message, the service type indicating ranging SL positioning or the ProSe application identifier indicating ranging SL positioning, a security protection element, an optional user information ID of the second terminal, target information, the user information ID of the first terminal, and optional RSPP metadata information.
  • the type of discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery”, the content type value is "Solicitation”, and the mode type value is "Model B”.
  • the second terminal (also referred to as the discoverer terminal) matching the ranging SL positioning request message (e.g., RSPP metadata information) responds to the first terminal using a ranging SL positioning response message.
  • the ranging SL positioning response message includes a discovery message type, a service type indicating ranging SL positioning or a ProSe application identifier indicating ranging SL positioning, a security protection element, RSPP metadata information, and a user information ID of the second terminal.
  • the type of the discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value, and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery”, the content type value is “response”, and the mode type value is "Model B”.
  • the process of group member discovery that supports 5G ProSe for ranging SL positioning is used in Model A discovery.
  • Step 1 the first terminal sends a ranging SL positioning group member discovery notification message.
  • the notification message includes the type of discovery message, the service type indicating ranging SL positioning or the ProSe application identifier indicating ranging SL positioning, the user information ID of the first terminal, the group ID and RSPP metadata information.
  • the type of discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery", the content type value is "Group member discovery announcement", and the mode type value is "Model A”.
  • the process of group member discovery that supports 5G ProSe for ranging SL positioning is used in Model B discovery.
  • Step 1 the first terminal (also called the discoverer terminal) (UE-1) sends a ranging SL positioning group member discovery request message.
  • the request message includes the type of discovery message, the service type indicating ranging SL positioning or the ProSe application identifier indicating ranging SL positioning, the user information ID of the first terminal, the group ID, (optional) the user information ID of the second terminal, and optional RSPP metadata information.
  • the type of discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery”, the content type value is "Group member discovery solicitation”, and the mode type value is "Model B”.
  • Step 2 the second terminal that matches the parameter value contained in the ranging SL positioning group member discovery request message (including the group ID and user information ID of the second terminal) will respond to the first terminal with a ranging SL positioning group member discovery response message.
  • the ranging SL positioning response message includes the type of discovery message, the service type indicating ranging SL positioning or the ProSe application identifier indicating ranging SL positioning, the user information ID of the second terminal, RSPP metadata information and the group ID.
  • the type of discovery message is jointly identified by the service type, the discovery type value of the ProSe direct discovery PC5 message type, the content type value and the mode type value, wherein the service type indicates the ranging SL positioning service type, the discovery type value is "Restricted discovery”, the content type value is "group member discovery response”, and the mode type value is "Model B”.
  • terminal discovery with V2X-enabled terminal ranging and SL positioning is provided.
  • the V2X service type corresponding to the V2X application identifier can be used to identify the message sent for ranging SL positioning.
  • the PC5 service type is shared with V2X-enabled terminals and ProSe-enabled terminals to identify messages for ranging SL positioning, an additional PC5 service type indicating the ranging SL positioning service will be included in the relevant process.
  • the "Content Type Value" of the "ProSe Direct Discovery PC5 Message Type Parameter” is extended to identify a message for PC5 direct discovery for ranging SL positioning.
  • the ProSe Direct Discovery PC5 message type is a Type 1 information element with a length of 1 octet.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods.
  • a device is proposed, and the above device includes units or modules for implementing each step executed by a terminal (for example, a first terminal, a second terminal) in any of the above methods.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • 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 instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the 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 inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.
  • ASIC Neural Network Processing Unit
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • Fig. 7A is a schematic diagram of the structure of a first terminal proposed in an embodiment of the present disclosure.
  • the first terminal 10 may include: at least one of a transceiver module 11, a processing module 12, and the like.
  • the above-mentioned transceiver module 11 is used to send a discovery request message or broadcast a discovery notification message to the second terminal, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for the first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the transceiver module 11 is used to execute at least one of the communication steps such as sending and/or receiving (such as S301A-S302A, S301B, but not limited thereto) executed by the first terminal 10 in any of the above methods, which will not be described in detail here.
  • the processing module 12 is used to execute at least one of the other steps (such as S301A-S302A, S301B, but not limited thereto) executed by the first terminal 10 in any of the above methods, which will not be described in detail here.
  • the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated.
  • the transceiver module may be interchangeable with the transceiver.
  • the processing module can be a module or include multiple submodules.
  • the multiple submodules respectively execute all or part of the steps required to be executed by the processing module.
  • the processing module can be replaced with the processor.
  • Fig. 7B is a schematic diagram of the structure of the second terminal proposed in the embodiment of the present disclosure.
  • the second terminal 20 may include: at least one of a transceiver module 21, a processing module 22, and the like.
  • the above-mentioned transceiver module 21 is used to receive a discovery request message sent by the first terminal or a discovery notification message sent by broadcasting, wherein the discovery request message or the discovery notification message is used to indicate a direct discovery process for the first service, and the discovery request message or the discovery notification message includes a first parameter for indicating a service type of the first service.
  • the transceiver module 21 is used to execute at least one of the communication steps such as sending and/or receiving (such as S301A to S302A, S301B, but not limited thereto) executed by the second terminal 20 in any of the above methods, which will not be described in detail here.
  • the processing module 22 is used to execute at least one of the other steps (such as S301A to S302A, S301B, but not limited thereto) executed by the second terminal 20 in any of the above methods, which will not be described in detail here.
  • the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated.
  • the transceiver module may be interchangeable with the transceiver.
  • the processing module can be a module or include multiple submodules.
  • the multiple submodules respectively execute all or part of the steps required to be executed by the processing module.
  • the processing module can be replaced with the processor.
  • the communication device 8100 may be a first terminal, or a second terminal, or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods.
  • the communication device 8100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 8100 includes one or more processors 8101.
  • the processor 8101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may 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 the program, and process the data of the program.
  • the communication device 8100 is used to execute any of the above methods.
  • one or more processors 8101 are used to call instructions so that the communication device 8100 executes any of the above methods.
  • the communication device 8100 further includes one or more transceivers 8102.
  • the transceiver 8102 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, S301A to S302A, S301B, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, S301A to S302A, S301B, but not limited thereto).
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separated or integrated together.
  • transceiver transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc.
  • transmitter transmitting unit, transmitter, transmitting circuit, etc.
  • receiver receiving unit, receiver, receiving circuit, etc.
  • the communication device 8100 further includes one or more memories 8103 for storing data.
  • the memories 8103 may also be outside the communication device 8100.
  • the communication device 8100 may include one or more interface circuits 8104.
  • the interface circuit 8104 is connected to the memory 8102, and the interface circuit 8104 may be used to receive data from the memory 8102 or other devices, and may be used to send data to the memory 8102 or other devices.
  • the interface circuit 8104 may read the data stored in the memory 8102 and send the data to the processor 8101.
  • the communication device 8100 described in the above embodiments may be a network device or a terminal, 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.
  • 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 and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • FIG. 8B is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure.
  • the communication device 8100 may be a chip or a chip system
  • the chip 8200 includes one or more processors 8201.
  • the chip 8200 is configured to execute any of the above methods.
  • the chip 8200 further includes one or more interface circuits 8202.
  • the terms interface circuit, interface, transceiver pin, etc. can be interchangeable.
  • the chip 8200 further includes one or more memories 8203 for storing data.
  • all or part of the memory 8203 can be outside the chip 8200.
  • the interface circuit 8202 is connected to the memory 8203, and the interface circuit 8202 can be used to receive data from the memory 8203 or other devices, and the interface circuit 8202 can be used to send data to the memory 8203 or other devices.
  • the interface circuit 8202 can read the data stored in the memory 8203 and send the data to the processor 8201.
  • the interface circuit 8202 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, S301A to S302A, S301B, but not limited thereto).
  • the interface circuit 8202 performs the communication steps such as sending and/or receiving in the above method, for example, means that the interface circuit 8202 performs data interaction between the processor 8201, the chip 8200, the memory 8203, or the transceiver device.
  • the processor 8201 performs at least one of the other steps (for example, S301A to S302A, S301B, but not limited thereto).
  • the present disclosure also provides a storage medium, on which instructions are stored. When the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is an electronic storage medium.
  • the medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a transient storage medium.
  • the present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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Abstract

La présente divulgation concerne un procédé d'indication d'informations et un terminal. Le procédé est exécuté par un premier terminal et consiste à : envoyer un message de demande de découverte ou diffuser un message de notification de découverte à un second terminal, le message de demande de découverte ou le message de notification de découverte étant utilisé pour fournir une instruction de mise en œuvre d'un processus de découverte directe pour un premier service, et le message de demande de découverte ou le message de notification de découverte comprenant un premier paramètre utilisé pour indiquer le type de service du premier service. Par conséquent, en envoyant le message de demande de découverte ou en diffusant le message de notification de découverte au second terminal, le premier terminal peut ordonner au second terminal d'effectuer un premier processus de découverte directe basé sur un service, et le message de demande de découverte ou le message de notification de découverte comprend un premier paramètre utilisé pour indiquer le type de service du premier service en vue d'assurer l'exécution normale du premier service.
PCT/CN2023/123009 2023-09-28 2023-09-28 Procédé d'indication d'informations et terminal Pending WO2025065695A1 (fr)

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CN202380011445.7A CN117529938A (zh) 2023-09-28 2023-09-28 信息指示方法、终端

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Citations (3)

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WO2021027735A1 (fr) * 2019-08-09 2021-02-18 维沃移动通信有限公司 Procédé de traitement d'un service de gestion de groupe, équipement utilisateur et dispositif de réseau
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WO2022198466A1 (fr) * 2021-03-23 2022-09-29 Oppo广东移动通信有限公司 Procédé de découverte et terminal
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