WO2024092664A1 - 会话区分方法、装置 - Google Patents

会话区分方法、装置 Download PDF

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Publication number
WO2024092664A1
WO2024092664A1 PCT/CN2022/129672 CN2022129672W WO2024092664A1 WO 2024092664 A1 WO2024092664 A1 WO 2024092664A1 CN 2022129672 W CN2022129672 W CN 2022129672W WO 2024092664 A1 WO2024092664 A1 WO 2024092664A1
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WIPO (PCT)
Prior art keywords
message
identification information
terminal device
sessions
distinguishing
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PCT/CN2022/129672
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English (en)
French (fr)
Inventor
江小威
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to EP22963974.5A priority Critical patent/EP4614895A4/en
Priority to CN202280004234.6A priority patent/CN115997470A/zh
Priority to PCT/CN2022/129672 priority patent/WO2024092664A1/zh
Publication of WO2024092664A1 publication Critical patent/WO2024092664A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a session differentiation method, apparatus, device and storage medium.
  • the positioning of the sidelink between terminal devices includes absolute positioning, relative positioning and ranging.
  • absolute positioning usually only two terminal devices are involved, that is, ranging is performed between the two terminal devices.
  • multiple auxiliary terminal devices may be involved, and multiple auxiliary terminal devices participate in positioning to improve the accuracy of absolute positioning and relative positioning.
  • the protocol for exchanging positioning messages between the two terminal devices includes the Sidelink Positioning Protocol (SLPP) protocol and/or the Ranging and sidelink positioning protocol (RSPP) protocol.
  • SLPP Sidelink Positioning Protocol
  • RSPP Ranging and sidelink positioning protocol
  • the terminal device Since the SLPP protocol and/or the RSPP protocol support the establishment of multiple sessions between two terminal devices, the terminal device does not determine which session the interacting SLPP message and/or RSPP message belongs to, which makes the accuracy of message interaction poor and the accuracy of positioning information determination low.
  • the present invention proposes a session differentiation method, apparatus, device and storage medium to determine the session corresponding to the SLPP message and/or RSPP message based on the identification information used to distinguish the session, reduce the situation of poor message interaction accuracy, improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • An embodiment of the present disclosure provides a method for distinguishing sessions, the method being executed by a first terminal device, the method comprising:
  • identification information for distinguishing sessions is sent to the second terminal device.
  • sending identification information for distinguishing sessions to the second terminal device includes:
  • the SLPP message and/or the RSPP message is sent to the second terminal device, wherein the SLPP message and/or the RSPP message includes the identification information for distinguishing sessions.
  • sending identification information for distinguishing sessions to the second terminal device includes:
  • the identification information for distinguishing sessions is carried in a transport layer, wherein the transport layer is used to carry the SLPP message and/or the RSPP message.
  • the transport layer includes at least one of the following:
  • PC5-user plane transport layer PC5-U PC5-user plane transport layer PC5-U
  • PDCP Packet Data Convergence Protocol
  • PC5-Radio Resource Management Transport Layer PC5-RRC
  • Non-access stratum (NAS) transport layer Non-access stratum (NAS) transport layer.
  • NAS Non-access stratum
  • carrying the identification information for distinguishing sessions in the transport layer includes:
  • a first field is added to a packet data convergence protocol header PDCP header of a PDCP data protocol data unit (PDU), wherein the first field is used to carry the identification information for distinguishing sessions.
  • PDU PDCP data protocol data unit
  • carrying the identification information for distinguishing sessions in the transport layer includes:
  • a PC5-S message is sent to the second terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry the identification information for distinguishing sessions.
  • carrying the identification information for distinguishing sessions in the transport layer includes:
  • a radio resource control (Radio Resource Control, RRC) message is sent to the second terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry the identification information for distinguishing sessions.
  • RRC Radio Resource Control
  • carrying the identification information for distinguishing sessions in the transport layer includes:
  • the SLPP message and/or the RSPP message is mapped to a PDU session session and/or a Quality of Service (QoS) flow according to the identification information used to distinguish the sessions.
  • QoS Quality of Service
  • carrying the identification information for distinguishing sessions in the transport layer includes:
  • a NAS message is sent to the second terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry the identification information used to distinguish sessions.
  • the sending identification information for distinguishing sessions to the second terminal device includes:
  • the identification information for distinguishing the sessions is sent to the second terminal device.
  • the identification information used to distinguish sessions is unique.
  • the method further includes:
  • the identification information for distinguishing sessions is determined according to the session usage identifier, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier within a first duration is not used as the identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • Another aspect of the present disclosure provides a method for distinguishing sessions, the method being executed by a second terminal device, the method comprising:
  • identification information for distinguishing sessions sent by the first terminal device is received.
  • an embodiment provides a session differentiation device, which is arranged on a first terminal device side, and includes:
  • the sending module is used to send identification information for distinguishing sessions to the second terminal device in response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to the second terminal device.
  • an embodiment provides a session differentiation device, which is arranged on a second terminal device side, and includes:
  • the receiving module is used to receive identification information for distinguishing sessions sent by the first terminal device when receiving the SLPP message and/or RSPP message sent by the first terminal device.
  • Another aspect of the present disclosure provides a second terminal device, which includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory so that the device performs the method provided in the above aspect.
  • a communication device provided in another aspect of the present disclosure includes: a processor and an interface circuit
  • the interface circuit is used to receive code instructions and transmit them to the processor
  • the processor is used to run the code instructions to execute the method proposed in an embodiment of one aspect.
  • a computer-readable storage medium provided in yet another aspect of the present disclosure is used to store instructions, and when the instructions are executed, the method provided in the embodiment of the first aspect is implemented.
  • a session differentiation mechanism can be provided to send SLPP messages and/or RSPP messages and identification information for the session to the second terminal device, thereby reducing the situation where only sending SLPP messages and/or RSPP messages makes it impossible for the second terminal device to determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message based on the identification information used to distinguish the session, thereby reducing the situation where the message interaction accuracy is poor, and the accuracy of determining the SLPP message and/or RSPP message can be improved, and the accuracy of determining the positioning information can be improved.
  • FIG1 is a background diagram of a method for distinguishing sessions provided by an embodiment of the present disclosure
  • FIG2 is a flow chart of a method for distinguishing sessions provided by an embodiment of the present disclosure
  • FIG3 is a flow chart of a method for distinguishing sessions provided in yet another embodiment of the present disclosure.
  • FIG4 is an interactive schematic diagram of a method for distinguishing sessions provided by an embodiment of the present disclosure.
  • FIG5 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG6 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG7 is a flow chart of a method for distinguishing sessions provided in yet another embodiment of the present disclosure.
  • FIG8 is a flow chart of a method for distinguishing sessions provided in yet another embodiment of the present disclosure.
  • FIG9 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG10 is a flow chart of a method for distinguishing sessions provided in yet another embodiment of the present disclosure.
  • FIG11 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG12 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG13 is an interactive schematic diagram of a method for distinguishing sessions provided by yet another embodiment of the present disclosure.
  • FIG14 is a schematic diagram of the structure of a session differentiation device provided by an embodiment of the present disclosure.
  • FIG15 is a schematic diagram of the structure of a session distinguishing device provided by another embodiment of the present disclosure.
  • FIG16 is a block diagram of a terminal device provided by an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein may be interpreted as “at” or "when” or "in response to determination".
  • the network elements or network functions involved in the embodiments of the present disclosure may be implemented by independent hardware devices or by software in the hardware devices, and this is not limited in the embodiments of the present disclosure.
  • Positioning based on the sidelink link between the terminal equipment (User Equipment, UE) and UE includes absolute positioning, relative positioning and ranging.
  • Absolute positioning is to determine the absolute coordinates of the UE
  • relative positioning is to determine the coordinates of the UE relative to a reference point
  • ranging is to determine the distance and/or angle of the UE relative to a reference point.
  • Ranging usually refers to ranging between only two UEs, but absolute positioning and relative positioning may involve multiple auxiliary UEs to participate in positioning.
  • FIG1 shows a background schematic diagram of a session differentiation method provided by an embodiment of the present disclosure.
  • DL-TDOA downlink time difference of arrival
  • multiple road side units RSU
  • each road side unit can correspond to fixed position information, for example.
  • the UE measures the positioning signals sent by multiple road side units through the sidelink link, and based on the positioning signals, the UE can determine the specific position of the UE relative to the RSU.
  • the multiple RSUs can be greater than or equal to three, for example.
  • the positioning signal can include the position information of the road side unit
  • the UE can measure the arrival time difference of three positioning signals sent by three road side units, and based on the arrival time difference of the three positioning signals and the position information of each road side unit, the UE can determine the position information of the UE, or the position information of the UE relative to a certain road side unit.
  • positioning solutions in addition to DL-TDOA, positioning solutions also include uplink time difference of arrival (UL-TDOA), multiple round trip time (Multiple RTT), angle of arrival (AOA) or angle of departure (AOD), carrier phase positioning, etc. If the positioning result is not based on the RSU-based Global Positioning System (GPS) and other absolute position information converted into absolute position coordinates, then the positioning result is relative positioning. Otherwise, it is absolute positioning.
  • GPS Global Positioning System
  • the RSU involved in relative positioning or absolute positioning is a positioning-assisted UE.
  • the two UEs are each other's positioning-assisted UEs.
  • RSU type positioning assistance UEs there are different types of positioning assistance UEs, such as RSU type positioning assistance UEs.
  • RSU type positioning assistance UEs belong to a kind of infrastructure, which can provide positioning services by collaborating with other RSUs.
  • ordinary UEs can also be used as positioning assistance UEs, but it is difficult for them to assist in providing positioning services with other UEs.
  • some positioning assistance UEs have location information such as GPS, which can assist other UEs in absolute positioning.
  • some other positioning assistance UEs may not have location information such as GPS.
  • FIG. 2 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure. The method is executed by a first terminal device. As shown in FIG. 2 , the method may include the following steps:
  • Step 201 In response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to a second terminal device, identification information for distinguishing sessions is sent to the second terminal device.
  • the terminal device may be a device that provides voice and/or data connectivity to a user.
  • the terminal device may communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal device may be an IoT terminal device, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an IoT terminal device, for example, a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device.
  • a subscriber station STA
  • a subscriber unit a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, or a user agent.
  • the terminal device may also be a device of an unmanned aerial vehicle.
  • the terminal device may also be a vehicle-mounted device, for example, a driving computer with wireless communication function, or a wireless terminal device connected to an external driving computer.
  • the terminal device may also be a roadside device, for example, a street lamp, a traffic light or other roadside device with a wireless communication function.
  • the first terminal device may exchange positioning messages with the second terminal device.
  • the protocols for exchanging positioning messages between the first terminal device and the second terminal device include but are not limited to the SLPP protocol and the RSPP protocol.
  • the first terminal device may be, for example, an RSU.
  • the identification information used to distinguish sessions may be, for example, identification information used to distinguish different session identifiers.
  • sending identification information for distinguishing sessions to the second terminal device includes:
  • the first terminal device may carry identification information for distinguishing sessions in the SLPP message and/or RSPP message. That is, when the first terminal device sends the SLPP message and/or RSPP message to the second terminal device, since the SLPP message and/or RSPP message carries identification information for distinguishing sessions, the first terminal device may send the identification information for distinguishing sessions to the second terminal device.
  • different sessions can be identified by adding identification information for distinguishing session IDs in SLPP messages and/or RSPP messages.
  • the identification information for distinguishing sessions in response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to a second terminal device, when identification information for distinguishing sessions is sent to the second terminal device, can be carried in the transport layer in response to sending the SLPP message and/or the RSPP message to the second terminal device, wherein the transport layer is used to carry the SLPP message and/or the RSPP message.
  • the transport layer includes at least one of the following:
  • PC5-user plane transport layer PC5-U PC5-user plane transport layer PC5-U
  • PC5-Radio Resource Management Transport Layer PC5-RRC
  • Non-access stratum NAS transport layer Non-access stratum NAS transport layer.
  • the identification information used to distinguish the session includes but is not limited to session identification session ID information and reason identification routing ID information.
  • the SLPP layer and/or the RSPP layer can send the session information to the transport layer.
  • the session information can be, for example, a session ID, and the transport layer can map the session ID to a routing ID, or directly use the session ID as the routing ID.
  • identification information for distinguishing sessions is carried in the transport layer, including:
  • a first field is added to a packet data convergence protocol header PDCP header of a PDCP data protocol data unit PDU, wherein the first field is used to carry identification information for distinguishing sessions.
  • the first field refers to a field added to the PDCP header of the PDCP Data PDU.
  • the first field is only used to distinguish from the remaining fields.
  • the first field does not specifically refer to a certain field.
  • the ID length refers to the length of the session ID or routing ID.
  • the ID length can be any value from 1 to 16.
  • the ID length can be 8 bits, and the ID length can also be 4 bits.
  • identification information for distinguishing sessions is carried in the transport layer, including:
  • a PC5-S message is sent to the second terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry identification information for distinguishing sessions.
  • the second field refers to a field in the PC5-S message used to carry identification information for distinguishing sessions.
  • the second in the second field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the second field may also change accordingly.
  • a second field for carrying a routing ID or a session ID may be included in the packet header of the message.
  • identification information for distinguishing sessions is carried in the transport layer, including:
  • a wireless resource control RRC message is sent to the second terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry identification information for distinguishing sessions.
  • the third field refers to a field in the RRC message used to carry identification information for distinguishing sessions.
  • the third in the third field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the third field may also change accordingly.
  • identification information for distinguishing sessions is carried in the transport layer, including:
  • the transport layer is the PC5-U data link transport layer
  • the SLPP message and/or RSPP message is mapped to the PDU session and/or the QoS flow according to the identification information used to distinguish the sessions.
  • the transport layer is the PC5-U data link transport layer
  • the SLPP messages and/or RSPP messages of different sessions may be mapped to different PDU sessions and/or QoS flows by the Proximity Services (ProSe) and/or V2X layer.
  • ProSe Proximity Services
  • the SLPP and/or RSPP layer sends corresponding session information to the ProSe and/or V2X layer.
  • the session information may be, for example, a session ID.
  • the ProSe and/or V2X layer may map the session ID to a routing ID, or directly use the session ID as the routing ID.
  • identification information for distinguishing sessions is carried in the transport layer, including:
  • a NAS message is sent to the second terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry identification information for distinguishing sessions.
  • the fourth field refers to a field in the NAS message used to carry identification information for distinguishing sessions.
  • the fourth in the fourth field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the fourth field may also change accordingly.
  • sending identification information for distinguishing sessions to a second terminal device includes:
  • identification information for distinguishing the sessions is sent to the second terminal device.
  • the first terminal device may send a message for establishing the SLPP session and/or the RSPP session to the second terminal device, and the message for the SLPP session and/or the RSPP session may carry identification information for distinguishing the sessions, that is, the first terminal device may send identification information for distinguishing the sessions to the second terminal device.
  • the identification information used to distinguish a session is used for subsequent messages in the session.
  • the first terminal device when the first terminal device sends an SLPP/RSPP message belonging to the same session, it carries the session ID when the session was established.
  • the identification information used to distinguish sessions is unique.
  • the first terminal device if an ID identifying a session is in use, the first terminal device cannot use the ID to send a new reply, and can only select an ID that is not currently in use from an ID set.
  • the ID set refers to a set including at least one session ID.
  • the method further includes:
  • identification information for distinguishing sessions is determined, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier within a first duration is not used as identification information for distinguishing sessions.
  • the first duration does not specifically refer to a fixed duration.
  • the first duration may be a duration configured by a network-side device, or may be a duration determined according to a preconfiguration.
  • the first duration may be, for example, 10 minutes.
  • the ID used to identify the session cannot be used again.
  • identification information for distinguishing sessions is determined according to a session usage identifier, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier is not used as identification information for distinguishing sessions within a first duration. Specifically, for example, the session corresponding to the session usage identifier is not used as identification information for distinguishing sessions within the first duration after use ends.
  • the identification information used to distinguish sessions includes at least one of the following:
  • a session differentiation mechanism can be provided to send SLPP messages and/or RSPP messages and identification information for the session to the second terminal device, thereby reducing the situation where only SLPP messages and/or RSPP messages are sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message based on the identification information used to distinguish the session, thereby reducing the situation where the message interaction accuracy is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG3 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure.
  • the method is executed by a first terminal device. As shown in FIG3 , the method may include the following steps:
  • Step 301 Send an SLPP message and/or an RSPP message to a second terminal device, wherein the SLPP message and/or the RSPP message includes identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the second terminal device refers to a terminal device that exchanges positioning messages with the first terminal device, and the second terminal device does not specifically refer to a fixed terminal device. For example, when the device identification of the second terminal device changes, the second terminal device may also change accordingly.
  • FIG4 is an interactive schematic diagram of a session differentiation method provided by the embodiment of the present disclosure.
  • the first terminal device can send an SLPP message and/or an RSPP message to the second terminal device, wherein the SLPP message and/or the RSPP message include identification information for distinguishing sessions. That is, the first terminal device can carry identification information for distinguishing sessions in the SLPP message and/or the RSPP message. That is, when the first terminal device sends an SLPP message and/or an RSPP message to the second terminal device, since the SLPP message and/or the RSPP message carries identification information for distinguishing sessions, the first terminal device can send identification information for distinguishing sessions to the second terminal device.
  • different sessions can be identified by adding identification information for distinguishing session IDs in SLPP messages and/or RSPP messages.
  • a SLPP message and/or an RSPP message are sent to a second terminal device, wherein the SLPP message and/or the RSPP message include identification information for distinguishing sessions.
  • a session differentiation mechanism can be provided, and a SLPP message and/or an RSPP message and identification information for a session are sent to a second terminal device, thereby reducing the situation where only the SLPP message and/or the RSPP message is sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or the RSPP message.
  • the present disclosure specifically discloses a scheme in which identification information for distinguishing sessions is carried in an SLPP message and/or an RSPP message.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or the RSPP message based on the identification information for distinguishing sessions, thereby reducing the situation where the accuracy of message interaction is poor, and the accuracy of determining the SLPP message and/or the RSPP message can be improved, and the accuracy of determining the positioning information can be improved.
  • FIG5 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure.
  • the method is executed by a first terminal device. As shown in FIG5 , the method may include the following steps:
  • Step 501 In response to sending a SLPP message and/or an RSPP message to a second terminal device, identification information for distinguishing sessions is carried in a transport layer, wherein the transport layer is used to carry the SLPP message and/or the RSPP message.
  • the transport layer includes at least one of the following:
  • PC5-user plane transport layer PC5-U PC5-user plane transport layer PC5-U
  • PC5-Radio Resource Management Transport Layer PC5-RRC
  • Non-access stratum NAS transport layer Non-access stratum NAS transport layer.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the identification information used to distinguish the session includes but is not limited to session identification session ID information and reason identification routing ID information.
  • the SLPP layer and/or the RSPP layer can send the session information to the transport layer.
  • the session information can be, for example, a session ID, and the transport layer can map the session ID to a routing ID, or directly use the session ID as the routing ID.
  • Figure 6 is an interactive schematic diagram of a session differentiation method provided by an embodiment of the present disclosure.
  • the first terminal device in response to sending an SLPP message and/or an RSPP message to a second terminal device, the first terminal device may carry identification information for distinguishing sessions in a transport layer, wherein the transport layer is used to carry SLPP messages and/or RSPP messages.
  • identification information for distinguishing sessions is carried in the transport layer, wherein the transport layer is used to carry SLPP messages and/or RSPP messages.
  • a session differentiation mechanism can be provided, and SLPP messages and/or RSPP messages and identification information for sessions are sent to the second terminal device, thereby reducing the situation where only SLPP messages and/or RSPP messages are sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure specifically discloses a scheme for carrying identification information for distinguishing sessions in the transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message based on the identification information for distinguishing sessions, thereby reducing the situation where the accuracy of message interaction is poor, and the accuracy of determining the SLPP message and/or RSPP message can be improved, and the accuracy of determining the positioning information can be improved.
  • FIG. 7 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure. The method is executed by a first terminal device. As shown in FIG. 7 , the method may include the following steps:
  • Step 701 In response to the transport layer being the PDCP transport layer, a first field is added to the PDCP header of the PDCP Data PDU, wherein the first field is used to carry identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the first field refers to a field added to the PDCP header of the PDCP Data PDU.
  • the first field is only used to distinguish from the remaining fields.
  • the first field does not specifically refer to a certain field.
  • the ID length refers to the length of the session ID or routing ID.
  • the ID length can be any value from 1 to 16.
  • the ID length can be 8 bits, and the ID length can also be 4 bits.
  • a first field is added to the PDCP header of the PDCP Data PDU, wherein the first field is used to carry identification information for distinguishing sessions.
  • a session differentiation mechanism can be provided to send SLPP messages and/or RSPP messages and identification information for sessions to the second terminal device, thereby reducing the situation where only SLPP messages and/or RSPP messages are sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the embodiment of the present disclosure discloses a scheme for sending identification information for distinguishing sessions when the transport layer is specifically the PDCP transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information for distinguishing sessions, thereby reducing the situation where the accuracy of message interaction is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG8 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure.
  • the method is executed by a first terminal device. As shown in FIG8 , the method may include the following steps:
  • Step 801 In response to the transport layer being a PC5-S control link transport layer, a PC5-S message is sent to a second terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the second field refers to a field in the PC5-S message used to carry identification information for distinguishing sessions.
  • the second in the second field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the second field may also change accordingly.
  • a second field for carrying a routing ID or a session ID may be included in the packet header of the message.
  • a PC5-S message in response to the transport layer being a PC5-S control link transport layer, a PC5-S message is sent to the second terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry identification information for distinguishing sessions.
  • a session differentiation mechanism can be provided, and an SLPP message and/or an RSPP message and identification information for the session are sent to the second terminal device, thereby reducing the situation where only the SLPP message and/or the RSPP message are sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or the RSPP message.
  • the embodiment of the present disclosure discloses a scheme for sending identification information for distinguishing sessions when the transport layer is specifically a PC5-S transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation", so as to determine the session corresponding to the SLPP message and/or the RSPP message according to the identification information for distinguishing sessions, reduce the situation where the accuracy of message interaction is poor, and can improve the accuracy of determining the SLPP message and/or the RSPP message, and improve the accuracy of determining the positioning information.
  • FIG9 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure.
  • the method is executed by a first terminal device. As shown in FIG9 , the method may include the following steps:
  • Step 901 In response to the transport layer being a PC5-RRC control plane high-layer protocol transport layer, a radio resource control RRC message is sent to a second terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry identification information for distinguishing sessions.
  • the transport layer being a PC5-RRC control plane high-layer protocol transport layer
  • the identification information used to distinguish sessions includes at least one of the following:
  • the third field refers to a field in the RRC message used to carry identification information for distinguishing sessions.
  • the third in the third field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the third field may also change accordingly.
  • a radio resource control RRC message is sent to the second terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry identification information for distinguishing sessions.
  • a session differentiation mechanism can be provided to send SLPP messages and/or RSPP messages and identification information for sessions to the second terminal device, thereby reducing the situation where only SLPP messages and/or RSPP messages are sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the embodiment of the present disclosure discloses a scheme for sending identification information for distinguishing sessions when the transport layer is specifically a PC5-RRC transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information for distinguishing sessions, thereby reducing the situation where the accuracy of message interaction is poor, and the accuracy of determining the SLPP message and/or RSPP message can be improved, and the accuracy of determining the positioning information can be improved.
  • FIG10 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure.
  • the method is executed by a first terminal device. As shown in FIG10 , the method may include the following steps:
  • Step 1001 When the transport layer is the PC5-U data link transport layer, the SLPP message and/or RSPP message is mapped to the PDU session and/or the quality of service flow QoS flow according to the identification information used to distinguish the session.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the transport layer is the PC5-U data link transport layer
  • the SLPP messages and/or RSPP messages of different sessions may be mapped to different PDU sessions and/or QoS flows by ProSe and/or V2X layer.
  • the SLPP and/or RSPP layer informs the ProSe and/or V2X layer of the corresponding session information, which may be, for example, a session ID.
  • the ProSe and/or V2X layer may map the session ID to a routing ID, or directly use the session ID as the routing ID.
  • the transport layer is the PC5-U data link transport layer
  • the SLPP message and/or RSPP message is mapped to the PDU session session and/or the quality of service flow QoS flow according to the identification information used to distinguish the session.
  • a session differentiation mechanism can be provided to send the SLPP message and/or RSPP message and the identification information for the session to the second terminal device, thereby reducing the situation where only the SLPP message and/or RSPP message is sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the embodiment of the present disclosure discloses a scheme for sending identification information for distinguishing sessions when the transport layer is specifically the PC5-U transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information used to distinguish the session, reduce the situation where the accuracy of message interaction is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG. 11 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure. The method is executed by a first terminal device. As shown in FIG. 11 , the method may include the following steps:
  • Step 1101 In response to the transport layer being a NAS transport layer, a NAS message is sent to a second terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the fourth field refers to a field in the NAS message used to carry identification information for distinguishing sessions.
  • the fourth in the fourth field is only used to distinguish from the remaining fields and does not specifically refer to a fixed field. For example, when the identification information for distinguishing sessions changes, the fourth field may also change accordingly.
  • a NAS message in response to the transport layer being a NAS transport layer, a NAS message is sent to the second terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry identification information for distinguishing sessions.
  • a session differentiation mechanism can be provided, and an SLPP message and/or RSPP message and identification information for the session are sent to the second terminal device, so as to reduce the situation where only the SLPP message and/or RSPP message is sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the embodiment of the present disclosure discloses a scheme for sending identification information for distinguishing sessions when the transport layer is specifically a NAS transport layer.
  • the present disclosure provides a processing method for a situation of "session differentiation", so as to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information for distinguishing sessions, reduce the situation where the accuracy of message interaction is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG. 12 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure. The method is executed by a first terminal device. As shown in FIG. 12 , the method may include the following steps:
  • Step 1201 Determine identification information for distinguishing sessions according to a session usage identifier, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier within a first duration is not used as identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • the identification information used to distinguish sessions is unique.
  • the first terminal device if an ID identifying a session is in use, the first terminal device cannot use the ID to send a new reply, and can only select an ID that is not currently in use from the ID set.
  • the first duration does not specifically refer to a fixed duration.
  • the first duration may be a duration configured by a network-side device, or may be a duration determined according to a preconfiguration.
  • the first duration may be, for example, 10 minutes.
  • the ID used to identify the session cannot be used again.
  • identification information for distinguishing sessions is determined according to a session usage identifier, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier is not used as identification information for distinguishing sessions within a first duration.
  • the session corresponding to the session usage identifier is not used as identification information for distinguishing sessions within the first duration after use ends.
  • identification information for distinguishing sessions is determined according to the session usage identifier, wherein the session usage identifier is used to indicate that the session identifier corresponding to the session usage identifier within the first time period is not used as identification information for distinguishing sessions.
  • a session distinction mechanism can be provided, and an SLPP message and/or RSPP message and identification information for the session are sent to the second terminal device, reducing the situation where only the SLPP message and/or RSPP message is sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the embodiment of the present disclosure discloses that identification information for distinguishing sessions is determined according to the session usage identifier, reducing the situation where the session cannot be distinguished due to repeated use of the session identifier, and can improve the accuracy of determining the identification information for distinguishing sessions.
  • the present disclosure provides a processing method for a "session distinction" situation, so as to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information used to distinguish the session, reduce the situation where the message interaction accuracy is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG. 13 is a flow chart of a method for distinguishing sessions provided in an embodiment of the present disclosure. The method is executed by a second terminal device. As shown in FIG. 13 , the method may include the following steps:
  • Step 1301 When receiving an SLPP message and/or an RSPP message sent by a first terminal device, receive identification information for distinguishing sessions sent by the first terminal device.
  • the second terminal device may, for example, receive a SLPP message and/or an RSPP message sent by the first terminal device, wherein the SLPP message and/or the RSPP message include identification information for distinguishing sessions. That is, the second terminal device may receive the SLPP message and/or the RSPP message and the identification information for distinguishing sessions.
  • the first terminal device when the second terminal device receives the SLPP message and/or RSPP message sent by the first terminal device, the first terminal device can carry identification information for distinguishing sessions in the transport layer, wherein the transport layer is used to carry the SLPP message and/or RSPP message, and the second terminal device can obtain the identification information for distinguishing sessions.
  • the transport layer includes at least one of the following:
  • PC5-user plane transport layer PC5-U PC5-user plane transport layer PC5-U
  • PC5-Radio Resource Management Transport Layer PC5-RRC
  • Non-access stratum NAS transport layer Non-access stratum NAS transport layer.
  • the second terminal device in response to the transport layer being a PDCP transport layer, can determine a first field in the PDCP header of the PDCPData PDU, wherein the first field is used to carry identification information for distinguishing sessions, that is, the second terminal device can receive identification information for distinguishing sessions.
  • the second terminal device in response to the transport layer being a PC5-S control link transport layer, can receive a PC5-S message sent by the first terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry identification information for distinguishing sessions.
  • the second terminal device in response to the transport layer being a PC5-RRC control plane high-layer protocol transport layer, can receive an RRC message sent by the first terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry identification information for distinguishing sessions.
  • the transport layer is the PC5-U data link transport layer
  • the first terminal device maps the SLPP message and/or RSPP message to the PDU session session and/or the quality of service flow QoS flow according to the identification information used to distinguish the sessions
  • the second terminal device can determine the identification information used to distinguish the sessions based on the PDU session session and/or the quality of service flow QoS flow.
  • the second terminal device in response to the transport layer being a NAS transport layer, can receive a NAS message sent by the first terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry identification information for distinguishing sessions.
  • the second terminal device when establishing an SLPP session and/or an RSPP session with the first terminal device, may receive identification information sent by the first terminal device for distinguishing the sessions.
  • the identification information used to distinguish sessions is unique.
  • a session differentiation mechanism can be provided to receive the SLPP message and/or RSPP message sent by the first terminal device and the identification information for the session, thereby reducing the situation where only receiving the SLPP message and/or RSPP message makes it impossible to determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure provides a processing method for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message based on the identification information for distinguishing sessions, thereby reducing the situation where the accuracy of message interaction is poor, and can improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • FIG. 14 is a schematic diagram of the structure of a session differentiation device provided in an embodiment of the present disclosure. As shown in FIG. 14 , the device 1400 may be arranged on the first terminal device side, and the device 1400 may include:
  • the sending module 1401 is used for sending identification information for distinguishing sessions to the second terminal device in response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to the second terminal device.
  • the sending module in response to sending the direct connection positioning protocol SLPP message and/or the ranging direct connection positioning protocol RSPP message to the second terminal device, sends identification information for distinguishing the session to the second terminal device.
  • a session differentiation mechanism can be provided to send the SLPP message and/or RSPP message and the identification information for the session to the second terminal device, thereby reducing the situation where only the SLPP message and/or RSPP message is sent so that the second terminal device cannot determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure provides a processing device for a situation of "session differentiation" to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information for distinguishing the session, thereby reducing the situation where the message interaction accuracy is poor, and the accuracy of determining the SLPP message and/or RSPP message can be improved, and the accuracy of determining the positioning information can be improved.
  • the sending module 1401 is used to send identification information for distinguishing sessions to the second terminal device in response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to the second terminal device, specifically for:
  • the sending module 1401 is used to send identification information for distinguishing sessions to the second terminal device in response to sending a direct connection positioning protocol SLPP message and/or a ranging direct connection positioning protocol RSPP message to the second terminal device, specifically for:
  • identification information for distinguishing sessions is carried in a transport layer, wherein the transport layer is used to carry the SLPP message and/or the RSPP message.
  • the transport layer includes at least one of the following:
  • PC5-user plane transport layer PC5-U PC5-user plane transport layer PC5-U
  • PC5-Radio Resource Management Transport Layer PC5-RRC
  • Non-access stratum NAS transport layer Non-access stratum NAS transport layer.
  • the sending module 1401 is used to carry identification information for distinguishing sessions in the transport layer, specifically to:
  • a first field is added to a packet data convergence protocol header PDCP header of a PDCP data protocol data unit PDU, wherein the first field is used to carry identification information for distinguishing sessions.
  • the sending module 1401 is used to carry identification information for distinguishing sessions in the transport layer, specifically to:
  • a PC5-S message is sent to the second terminal device, wherein the PC5-S message includes a second field, and the second field is used to carry identification information for distinguishing sessions.
  • the sending module 1401 is used to carry identification information for distinguishing sessions in the transport layer, specifically to:
  • a wireless resource control RRC message is sent to the second terminal device, wherein the packet header of the RRC message includes a third field, and the third field is used to carry identification information for distinguishing sessions.
  • the sending module 1401 is used to carry identification information for distinguishing sessions in the transport layer, specifically to:
  • the transport layer is the PC5-U data link transport layer
  • the SLPP message and/or RSPP message is mapped to the PDU session and/or the QoS flow according to the identification information used to distinguish the sessions.
  • the sending module 1401 is used to carry identification information for distinguishing sessions in the transport layer, specifically to:
  • a NAS message is sent to the second terminal device, wherein the NAS message includes a fourth field, and the fourth field is used to carry identification information for distinguishing sessions.
  • the sending module 1401 is used to send identification information for distinguishing sessions to the second terminal device, specifically for:
  • identification information for distinguishing the sessions is sent to the second terminal device.
  • the identification information used to distinguish sessions is unique.
  • the sending module 1401 is further configured to:
  • identification information for distinguishing sessions is determined, wherein the session usage identifier is used to indicate that a session identifier corresponding to the session usage identifier within a first duration is not used as identification information for distinguishing sessions.
  • the identification information used to distinguish sessions includes at least one of the following:
  • FIG. 15 is a schematic diagram of the structure of a session differentiation device provided in an embodiment of the present disclosure. As shown in FIG. 15 , the device 1500 may be arranged on the second terminal device side, and the device 1500 may include:
  • the receiving module 1501 is used to receive identification information for distinguishing sessions sent by the first terminal device when receiving an SLPP message and/or an RSPP message sent by the first terminal device.
  • the receiving module when receiving the SLPP message and/or RSPP message sent by the first terminal device, the receiving module receives the identification information for distinguishing the session sent by the first terminal device.
  • a session differentiation mechanism can be provided to receive the SLPP message and/or RSPP message sent by the first terminal device and the identification information for the session, thereby reducing the situation where only receiving the SLPP message and/or RSPP message makes it impossible to determine the session corresponding to the SLPP message and/or RSPP message.
  • the present disclosure provides a processing device for a "session differentiation" situation, so as to determine the session corresponding to the SLPP message and/or RSPP message according to the identification information for distinguishing the session, reduce the situation where the message interaction accuracy is poor, improve the accuracy of determining the SLPP message and/or RSPP message, and improve the accuracy of determining the positioning information.
  • UE 1600 is a block diagram of a terminal device UE 1600 provided by an embodiment of the present disclosure.
  • UE 1600 may be a mobile phone, a computer, a digital broadcast terminal device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • UE 1600 may include at least one of the following components: a processing component 1602 , a memory 1604 , a power component 1606 , a multimedia component 1608 , an audio component 1610 , an input/output (I/O) interface 1612 , a sensor component 1614 , and a communication component 1616 .
  • the processing component 1602 generally controls the overall operation of the UE 1600, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 1602 may include at least one processor 1620 to execute instructions to complete all or part of the steps of the above-mentioned method.
  • the processing component 1602 may include at least one module to facilitate the interaction between the processing component 1602 and other components.
  • the processing component 1602 may include a multimedia module to facilitate the interaction between the multimedia component 1608 and the processing component 1602.
  • the memory 1604 is configured to store various types of data to support the operation of the UE 1600. Examples of such data include instructions for any application or method operating on the UE 1600, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 1606 provides power to various components of the UE 1600.
  • the power component 1606 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power for the UE 1600.
  • the multimedia component 1608 includes a screen that provides an output interface between the UE 1600 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes at least one touch sensor to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the wake-up time and pressure associated with the touch or slide operation.
  • the multimedia component 1608 includes a front camera and/or a rear camera. When the UE 1600 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
  • the audio component 1610 is configured to output and/or input audio signals.
  • the audio component 1610 includes a microphone (MIC), and when the UE 1600 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal may be further stored in the memory 1604 or sent via the communication component 1616.
  • the audio component 1610 also includes a speaker for outputting audio signals.
  • I/O interface 1612 provides an interface between processing component 1602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor component 1614 includes at least one sensor for providing various aspects of status assessment for UE1600.
  • the sensor component 1614 can detect the open/closed state of the device 2600, the relative positioning of the components, such as the display and keypad of the UE1600, and the sensor component 1614 can also detect the position change of UE1600 or a component of UE1600, the presence or absence of user contact with UE1600, the orientation or acceleration/deceleration of UE1600 and the temperature change of UE1600.
  • the sensor component 1614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • the sensor component 1614 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 1614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 1616 is configured to facilitate wired or wireless communication between UE1600 and other devices.
  • UE1600 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 1616 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 1616 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data Association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • UE1600 may be implemented by at least one application-specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component to perform the above method.
  • ASIC application-specific integrated circuit
  • DSP digital signal processor
  • DSPD digital signal processing device
  • PLD programmable logic device
  • FPGA field programmable gate array
  • controller microcontroller, microprocessor or other electronic component to perform the above method.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of the network side device and the UE.
  • the network side device and the UE may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of the network side device and the UE.
  • the network side device and the UE may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure provides a communication device.
  • the communication device may include a transceiver module and a processing module.
  • the transceiver module may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module may implement a sending function and/or a receiving function.
  • the communication device may be a terminal device (such as the terminal device in the aforementioned method embodiment), or a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device may be a network device, or a device in the network device, or a device that can be used in conjunction with the network device.
  • the communication device may be a network device, or a terminal device (such as the terminal device in the aforementioned method embodiment), or a chip, a chip system, or a processor that supports the network device to implement the aforementioned method, or a chip, a chip system, or a processor that supports the terminal device to implement the aforementioned method.
  • the device may be used to implement the method described in the aforementioned method embodiment, and the details may refer to the description in the aforementioned method embodiment.
  • the communication device may include one or more processors.
  • the processor may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a network side device, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device may further include one or more memories, on which a computer program may be stored, and the processor executes the computer program so that the communication device performs the method described in the above method embodiment.
  • data may also be stored in the memory.
  • the communication device and the memory may be provided separately or integrated together.
  • the communication device may further include a transceiver and an antenna.
  • the transceiver may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device may further include one or more interface circuits.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor runs the code instructions to enable the communication device to execute the method described in the above method embodiment.
  • the communication device is a first terminal device (such as the terminal device in the aforementioned method embodiment): the processor is used to execute any one of the methods shown in Figures 2 to 12.
  • the communication device is a second terminal device (such as the terminal device in the aforementioned method embodiment): the processor is used to execute any method shown in Figure 13.
  • the processor may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor may store a computer program, which runs on the processor and enables the communication device to perform the method described in the above method embodiment.
  • the computer program may be fixed in the processor, in which case the processor may be implemented by hardware.
  • the communication device may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS positive channel metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium ar
  • the communication device described in the above embodiments may be a network device or a terminal device (such as the terminal device in the aforementioned method embodiment), but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited thereto.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device may be a chip or a chip system
  • the chip includes a processor and an interface, wherein the number of the processors may be one or more, and the number of the interfaces may be multiple.
  • the chip also includes a memory for storing necessary computer programs and data.
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.

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Abstract

本公开提出一种会话区分方法、装置、设备及存储介质，属于通信技术领域。该方法包括响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。本公开针对一种"会话区分"这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。

Description

会话区分方法、装置 技术领域
本公开涉及通信技术领域，尤其涉及一种会话区分方法、装置、设备及存储介质。
背景技术
在通信系统中，终端设备和终端设备之间侧行链路Sidelink的定位包括绝对定位、相对定位以及测距。其中，对于测距，通常仅涉及两个终端设备，即在两个终端设备间进行测距，然而，对于绝对定位和相对定位，可能涉及多个辅助终端设备，多个辅助终端设备参与定位以提高绝对定位和相对定位的准确性。但是，在定位过程中，两个终端设备之间交互定位消息的协议包括直连定位(Sidelink Positioning Protocol，SLPP)协议和/或测距直连定位(Ranging and sidelink positioning protocol，RSPP)协议。由于SLPP协议和/或RSPP协议支持在两个终端设备之间建立多个会话，使得终端设备并不确定交互的SLPP消息和/或RSPP消息属于哪一个会话，使得消息交互的准确性较差，定位信息确定的准确性较低。
发明内容
本公开提出的一种会话区分方法、装置、设备及存储介质，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
本公开一方面实施例提出的一种会话区分方法，所述方法由第一终端设备执行，所述方法包括：
响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备。
可选地，在本公开的一个实施例之中，所述响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备，包括：
发送所述SLPP消息和/或所述RSPP消息至所述第二终端设备，其中，所述SLPP消息和/或所述RSPP消息中包括所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，所述响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备，包括：
响应于发送所述SLPP消息和/或所述RSPP消息至所述第二终端设备，在传输层中携带所述用于区分会话的标识信息，其中，所述传输层用于承载所述SLPP消息和/或所述RSPP消息。
可选地，在本公开的一个实施例之中，其中，所述传输层包括以下至少一项：
PC5-信令传输层PC5-S；
PC5-用户面传输层PC5-U；
控制面分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)传输层；
PC5-无线资源管理传输层PC5-RRC；
非接入层(Non-access stratum，NAS)传输层。
可选地，在本公开的一个实施例之中，所述在传输层中携带所述用于区分会话的标识信息，包括：
响应于所述传输层为所述PDCP传输层，在PDCP数据Data协议数据单元(Protocol Data Unit，PDU)的分组数据汇聚协议包头PDCP header中增加第一字段，其中，所述第一字段用于携带所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，所述在传输层中携带所述用于区分会话的标识信息，包括：
响应于所述传输层为所述PC5-S控制链路传输层，发送PC5-S消息至所述第二终端设备，其中，所述PC5-S消息中包括第二字段，所述第二字段用于携带所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，所述在传输层中携带所述用于区分会话的标识信息，包括：
响应于所述传输层为所述PC5-RRC控制面高层协议传输层，发送无线资源控制(Radio Resource Control， RRC)消息至所述第二终端设备，其中，所述RRC消息的包头中包括第三字段，所述第三字段用于携带所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，所述在传输层中携带所述用于区分会话的标识信息，包括：
在所述传输层为所述PC5-U数据链路传输层时，根据所述用于区分会话的标识信息，将所述SLPP消息和/或所述RSPP消息映射到PDU会话session和/或服务质量(Quality of Service，QoS)流flow。
可选地，在本公开的一个实施例之中，所述在传输层中携带所述用于区分会话的标识信息，包括：
响应于所述传输层为所述NAS传输层，发送NAS消息至所述第二终端设备，其中，所述NAS消息中包括第四字段，所述第四字段用于携带所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，所述发送用于区分会话的标识信息至所述第二终端设备，包括：
在与所述第二终端设备建立SLPP会话和/或RSPP会话时，发送所述用于区分会话的标识信息至所述第二终端设备。
可选地，在本公开的一个实施例之中，其中，所述用于区分会话的标识信息是唯一的。
可选地，在本公开的一个实施例之中，所述方法还包括：
根据会话使用标识，确定所述用于区分会话的标识信息，其中，所述会话使用标识用于指示在第一时长内所述会话使用标识对应的会话标识不作为所述用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，其中，所述用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
本公开另一方面实施例提出的一种会话区分方法，所述方法由第二终端设备执行，所述方法包括：
在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收所述第一终端设备发送的用于区分会话的标识信息。
本公开又一方面实施例提出的一种会话区分装置，所述装置设置于第一终端设备侧，所述装置包括：
发送模块，用于响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备。
本公开又一方面实施例提出的一种会话区分装置，所述装置设置于第二终端设备侧，所述装置包括：
接收模块，用于在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收所述第一终端设备发送的用于区分会话的标识信息。
本公开又一方面实施例提出的一种第一终端设备，所述设备包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上一方面实施例提出的方法。
本公开又一方面实施例提出的一种第二终端设备，所述设备包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如上一方面实施例提出的方法。
本公开又一方面实施例提出的通信装置，包括：处理器和接口电路；
所述接口电路，用于接收代码指令并传输至所述处理器；
所述处理器，用于运行所述代码指令以执行如一方面实施例提出的方法。
本公开又一方面实施例提出的计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如一方面实施例提出的方法被实现。
综上所述，在本公开实施例之中，响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性， 提高定位信息确定的准确性。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为本公开一个实施例所提供的一种会话区分方法的背景示意图；
图2为本公开一个实施例所提供的一种会话区分方法的流程示意图；
图3为本公开又一个实施例所提供的一种会话区分方法的流程示意图；
图4为本公开一个实施例所提供的一种会话区分方法的交互示意图；
图5为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图6为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图7为本公开又一个实施例所提供的一种会话区分方法的流程示意图；
图8为本公开又一个实施例所提供的一种会话区分方法的流程示意图；
图9为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图10为本公开又一个实施例所提供的一种会话区分方法的流程示意图；
图11为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图12为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图13为本公开又一个实施例所提供的一种会话区分方法的交互示意图；
图14为本公开一个实施例所提供的一种会话区分装置的结构示意图；
图15为本公开另一个实施例所提供的一种会话区分装置的结构示意图；
图16为本公开一个实施例所提供的一种终端设备的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在本公开实施例中涉及的网元或是网络功能，其既可以是独立的硬件设备实现，也可以通过硬件设备中的软件实现，本公开实施例中并不对此做出限定。
基于终端设备(User Equipment，UE)和UE间Sidelink链路的定位包括绝对定位、相对定位以及测距。绝对定位也即确定UE的绝对坐标，相对定位则是确定UE相对一个参考点的坐标，测距则是确定UE相对一个参考点的距离和/或角度。测距通常是指仅两个UE间进行测距，但绝对定位和相对定位则可能涉及多个辅助UE来参与定位。
图1示出为本公开实施例所提供的一种会话区分方法的背景示意图。如图1所示，以基于下行到达时差(Downlink time difference of arrival，DL-TDOA)的定位方法为例，多个路侧单元(Road Side Unit，RSU)可以设置于路侧，每个路侧单元例如可以对应固定位置信息。UE通过测量多个路侧单元通过sidelink链路 发送的定位信号，基于该定位信号可以确定UE相对于RSU的具体位置。多个RSU例如可以大于等于三。例如，定位信号中可以包括路侧单元的位置信息，该UE例如可以测量三个路侧单元发送的三个定位信号的到达时间差，基于该三个定位信号的到达时间差和各路侧单元的位置信息，UE可以确定UE的位置信息，或者UE相对于某一个路侧单元的位置信息。
其中，除了DL-TDOA，定位方案还有上行到达时差(Uplink time difference of arrival，UL-TDOA)，多个往返周期(Multiple round trip time，Multiple RTT)，到达角度(angle-of-arrival，AOA)或者离开角度(angle-of-departure，AOD)，载波相位定位等等。如果定位结果是没有基于RSU的全球定位系统(Global Positioning System，GPS)等绝对位置信息转换成绝对位置坐标，那么定位结果就是相对定位。反之，就是绝对定位。参与到相对定位或者绝对定位的RSU就是定位辅助UE。
其中，在本公开的一个实施例之中，如果定位仅涉及到两个UE，则二者互相是对方的定位辅助UE。
以及，在本公开的一个实施例之中，定位辅助UE中存在不同的类型，比如可以包括RSU类型的定位辅助UE。其中，RSU类型的定位辅助UE属于一种基础设施，它可以通过与其它RSU一起协作提供定位服务。比如普通的UE也可以作为定位辅助UE，其就难以与其它UE一起协助提供定位服务。另外，有些定位辅助UE有GPS等位置信息，其可以辅助其它UE进行绝对定位，还有，其它一些定位辅助UE可能不具备GPS等位置信息。
下面参考附图对本公开实施例所提供的一种会话区分方法、装置、设备及存储介质进行详细描述。
图2为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图2所示，该方法可以包括以下步骤：
步骤201、响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。
需要说明的是，在本公开的一个实施例之中，终端设备可以是指向用户提供语音和/或数据连通性的设备。终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端设备可以是物联网终端设备，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端设备的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，订户站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)或用户代理(user agent)。或者，终端设备也可以是无人飞行器的设备。或者，终端设备也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线终端设备。或者，终端设备也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
其中，在本公开的一个实施例之中，第一终端设备可以和第二终端设备交互定位消息。其中，第一终端设备和第二终端设备之间交互定位消息的协议包括但不限于SLPP协议和RSPP协议。该第一终端设备例如可以是RSU。
以及，在本公开的一个实施例之中，用于区分会话的标识信息例如可以是用于区分不同的会话标识。
其中，在本公开的一个实施例之中，响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备，包括：
发送SLPP消息和/或RSPP消息至第二终端设备，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。
进一步地，在本公开的一个实施例之中，第一终端设备可以在SLPP消息和/或RSPP消息中携带用于区分会话的标识信息。即，第一终端设备发送SLPP消息和/或RSPP消息至第二终端设备时，由于SLPP消息和/或RSPP消息中携带有用于区分会话的标识信息，因此，第一终端设备可以发送用于区分会话的标识信息至第二终端设备。
示例地，在本公开的一个实施例之中，例如，采用PC5-U作为传输层transport layer时，可以通过SLPP消息和/或RSPP消息里添加区分session ID的标识信息来识别不同会话session。
以及，在本公开的一个实施例之中，响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备时，可以响应于发送SLPP消息和/或RSPP消息至第二终端设备，在传输层中携带用于区分会话的标识信息，其中，传输层用于承载SLPP消息和/或RSPP消息。
示例地，在本公开的一个实施例之中，其中，传输层包括以下至少一项：
PC5-信令传输层PC5-S；
PC5-用户面传输层PC5-U；
控制面分组数据汇聚协议PDCP传输层；
PC5-无线资源管理传输层PC5-RRC；
非接入层NAS传输层。
进一步地，在本公开的一个实施例之中，该用于区分会话的标识信息包括但不限于会话标识session ID信息和理由标识routing ID信息。SLPP层和/或RSPP层可以发送session信息至传输层。在该session信息例如可以是session ID，传输层可以将该session ID映射到routing ID，或者直接将session ID作为routing ID。
示例地，在本公开的一个实施例之中，在传输层中携带用于区分会话的标识信息，包括：
响应于传输层为PDCP传输层，在PDCP数据Data协议数据单元PDU的分组数据汇聚协议包头PDCP header中增加第一字段，其中，第一字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，第一字段是指PDCP Data PDU的PDCP header中所增加的字段。该第一字段仅用于与其余字段进行区分。该第一字段并不特指某一字段。例如，当第一字段对应的标识ID长度发生变化时，该第一字段也可以相应变化。其中，ID长度是指session ID或者routing ID的长度。该ID长度可以为1～16中任一值均可。例如，该ID长度可以是8比特，该ID长度还可以是4比特。
示例地，在本公开的一个实施例之中，在传输层中携带用于区分会话的标识信息，包括：
响应于传输层为PC5-S控制链路传输层，发送PC5-S消息至第二终端设备，其中，PC5-S消息中包括第二字段，第二字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，第二字段是指PC5-S消息中用于携带用于区分会话的标识信息的字段。该第二字段中的第二仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第二字段也可以相应变化。
示例地，在本公开的一个实施例之中，例如对PC5-S里用于承载上层信息upper layer message的消息，可以在该消息的包头里包含一个第二字段用于携带routing ID或session ID。
示例地，在本公开的一个实施例之中，在传输层中携带用于区分会话的标识信息，包括：
响应于传输层为PC5-RRC控制面高层协议传输层，发送无线资源控制RRC消息至第二终端设备，其中，RRC消息的包头中包括第三字段，第三字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，第三字段是指RRC消息中用于携带用于区分会话的标识信息的字段。该第三字段中的第三仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第三字段也可以相应变化。
示例地，在本公开的一个实施例之中，在传输层中携带用于区分会话的标识信息，包括：
在传输层为PC5-U数据链路传输层时，根据用于区分会话的标识信息，将SLPP消息和/或RSPP消息映射到PDU会话session和/或服务质量流QoS flow。
进一步地，在本公开的一个实施例之中，在传输层为PC5-U数据链路传输层时，可以由接近服务(Proximity Services，ProSe)和/或V2X层V2X layer将不同的会话的SLPP消息和/或RSPP消息映射到不同的PDU会话session和/或服务质量流QoS flow。
示例地，在本公开的一个实施例之中，SLPP和/或RSPP层向ProSe和/或V2X layer发送对应的session信息，该session信息例如可以是session ID，ProSe和/或V2X layer可以将该session ID映射到一个routing ID，或者直接使用session ID作为routing ID。
示例地，在本公开的一个实施例之中，在传输层中携带用于区分会话的标识信息，包括：
响应于传输层为NAS传输层，发送NAS消息至第二终端设备，其中，NAS消息中包括第四字段，第四字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，第四字段是指NAS消息中用于携带用于区分会话的标识信息的字段。该第四字段中的第四仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第四字段也可以相应变化。
示例地，在本公开的一个实施例之中，发送用于区分会话的标识信息至第二终端设备，包括：
在与第二终端设备建立SLPP会话和/或RSPP会话时，发送用于区分会话的标识信息至第二终端设备。
进一步地，在第一终端设备与第二终端设备建立SLPP会话和/或RSPP会话时，第一终端设备可以在发送用于建立SLPP会话和/或RSPP会话的消息至第二终端设备，该SLPP会话和/或RSPP会话的消息中携带用于区分会话的标识信息，即第一终端设备可以发送用于区分会话的标识信息至第二终端设备。
示例地，在本公开的一个实施例之中，该用于区分会话的标识信息用于后续该会话内的消息。
进一步地，在本公开的一个实施例之中，第一终端设备在发送同属于一个session的SLPP/RSPP消息时，均携带session建立时的session ID。
进一步地，在本公开的一个实施例之中，其中，用于区分会话的标识信息是唯一的。
示例地，在本公开的一个实施例之中，如果一个标识会话的ID正在使用，第一终端设备不能使用该ID给新的回复啊，只能从ID集合中选择当前未被使用的ID。ID集合是指包括至少一个会话ID的集合。
进一步地，在本公开的一个实施例之中，该方法还包括：
根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。
示例地，在本公开的一个实施例之中，第一时长并不特指某一固定时长。该第一时长可以网络侧设备配置的时长，该可以是根据预配置确定的时长。该第一时长例如可以是10分钟。在一个会话结束后的第一时长内，该会话使用的标识会话的ID不能再次被使用。
进一步地，在本公开的一个实施例之中，根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。具体例如可以是，会话使用标识对应的会话在使用结束之后的在第一时长内不作为用于区分会话的标识信息。
进一步地，在本公开的一个实施例之中，其中，用于区分会话的标识信息，包括以下至少一项：
会话标识session ID信息；
路由标识routing ID信息。
综上所述，在本公开实施例之中，响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图3为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图3所示，该方法可以包括以下步骤：
步骤301、发送SLPP消息和/或RSPP消息至第二终端设备，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
以及，在本公开的一个实施例之中，第二终端设备是指与第一终端设备交互定位消息的终端设备，该第二终端设备并不特指某一固定终端设备。例如，当第二终端设备的设备标识发生变化时，该第二终端设 备也可以相应变化。
进一步地，在本公开的一个实施例之中，图4为本公开实施例所提供的一种会话区分方法的交互示意图，如图4所示，第一终端设备可以发送SLPP消息和/或RSPP消息至第二终端设备，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。即第一终端设备可以在SLPP消息和/或RSPP消息中携带用于区分会话的标识信息。即，第一终端设备发送SLPP消息和/或RSPP消息至第二终端设备时，由于SLPP消息和/或RSPP消息中携带有用于区分会话的标识信息，因此，第一终端设备可以发送用于区分会话的标识信息至第二终端设备。
示例地，在本公开的一个实施例之中，例如，采用PC5-S作为传输层transport layer时，可以通过SLPP消息和/或RSPP消息里添加区分session ID的标识信息来识别不同会话session。
综上所述，在本公开实施例之中，发送SLPP消息和/或RSPP消息至第二终端设备，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开具体公开了SLPP消息和/或RSPP消息中携带用于区分会话的标识信息的方案。在本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图5为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图5所示，该方法可以包括以下步骤：
步骤501、响应于发送SLPP消息和/或RSPP消息至第二终端设备，在传输层中携带用于区分会话的标识信息，其中，传输层用于承载SLPP消息和/或RSPP消息。
其中，在本公开的一个实施例之中，传输层包括以下至少一项：
PC5-信令传输层PC5-S；
PC5-用户面传输层PC5-U；
控制面分组数据汇聚协议PDCP传输层；
PC5-无线资源管理传输层PC5-RRC；
非接入层NAS传输层。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
进一步地，在本公开的一个实施例之中，该用于区分会话的标识信息包括但不限于会话标识session ID信息和理由标识routing ID信息。SLPP层和/或RSPP层可以发送session信息至传输层。在该session信息例如可以是session ID，传输层可以将该session ID映射到routing ID，或者直接将session ID作为routing ID。
进一步地，在本公开的一个实施例之中，图6为本公开实施例所提供的一种会话区分方法的交互示意图，如图6所示，响应于发送SLPP消息和/或RSPP消息至第二终端设备，第一终端设备可以在传输层中携带用于区分会话的标识信息，其中，传输层用于承载SLPP消息和/或RSPP消息。
综上所述，在本公开实施例之中，响应于发送SLPP消息和/或RSPP消息至第二终端设备，在传输层中携带用于区分会话的标识信息，其中，传输层用于承载SLPP消息和/或RSPP消息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开具体公开了在传输层中携带用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图7为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图7所示，该方法可以包括以下步骤：
步骤701、响应于传输层为PDCP传输层，在PDCP Data PDU的PDCP header中增加第一字段，其中，第一字段用于携带用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
以及，在本公开的一个实施例之中，第一字段是指PDCP Data PDU的PDCP header中所增加的字段。该第一字段仅用于与其余字段进行区分。该第一字段并不特指某一字段。例如，当第一字段对应的ID长度发生变化时，该第一字段也可以相应变化。其中，ID长度是指session ID或者routing ID的长度。该ID长度可以为1～16中任一值均可。例如，该ID长度可以是8比特，该ID长度还可以是4比特。
综上所述，在本公开实施例之中，响应于传输层为PDCP传输层，在PDCP Data PDU的PDCP header中增加第一字段，其中，第一字段用于携带用于区分会话的标识信息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了在传输层具体为PDCP传输层时发送用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图8为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图8所示，该方法可以包括以下步骤：
步骤801、响应于传输层为PC5-S控制链路传输层，发送PC5-S消息至第二终端设备，其中，PC5-S消息中包括第二字段，第二字段用于携带用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
以及，在本公开的一个实施例之中，第二字段是指PC5-S消息中用于携带用于区分会话的标识信息的字段。该第二字段中的第二仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第二字段也可以相应变化。
示例地，在本公开的一个实施例之中，例如对PC5-S里用于承载upper layer message的消息，可以在该消息的包头里包含一个第二字段用于携带routing ID或session ID。
综上所述，在本公开实施例之中，响应于传输层为PC5-S控制链路传输层，发送PC5-S消息至第二终端设备，其中，PC5-S消息中包括第二字段，第二字段用于携带用于区分会话的标识信息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了在传输层具体为PC5-S传输层时发送用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图9为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图9所示，该方法可以包括以下步骤：
步骤901、响应于传输层为PC5-RRC控制面高层协议传输层，发送无线资源控制RRC消息至第二终端设备，其中，RRC消息的包头中包括第三字段，第三字段用于携带用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
以及，在本公开的一个实施例之中，第三字段是指RRC消息中用于携带用于区分会话的标识信息的字段。该第三字段中的第三仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第三字段也可以相应变化。
综上所述，在本公开实施例之中，响应于传输层为PC5-RRC控制面高层协议传输层，发送无线资源控制RRC消息至第二终端设备，其中，RRC消息的包头中包括第三字段，第三字段用于携带用于区分会话的标识信息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了在传输层具体为PC5-RRC传输层时发送用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图10为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图10所示，该方法可以包括以下步骤：
步骤1001、在传输层为PC5-U数据链路传输层时，根据用于区分会话的标识信息，将SLPP消息和/或RSPP消息映射到PDU会话session和/或服务质量流QoS flow。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
进一步地，在本公开的一个实施例之中，在传输层为PC5-U数据链路传输层时，可以由ProSe和/或V2X layer将不同的会话的SLPP消息和/或RSPP消息映射到不同的PDU会话session和/或服务质量流QoS flow。
示例地，在本公开的一个实施例之中，SLPP和/或RSPP层告知ProSe和/或V2X layer对应的session信息，该session信息例如可以是session ID，ProSe和/或V2X layer可以将该session ID映射到一个routing ID，或者直接使用session ID作为routing ID。
综上所述，在本公开实施例之中，在传输层为PC5-U数据链路传输层时，根据用于区分会话的标识信息，将SLPP消息和/或RSPP消息映射到PDU会话session和/或服务质量流QoS flow。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了在传输层具体为PC5-U传输层时发送用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图11为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图11所示，该方法可以包括以下步骤：
步骤1101、响应于传输层为NAS传输层，发送NAS消息至第二终端设备，其中，NAS消息中包括第四字段，第四字段用于携带用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
以及，在本公开的一个实施例之中，第四字段是指NAS消息中用于携带用于区分会话的标识信息的字段。该第四字段中的第四仅用于与其余字段进行区分，并不特指某一固定字段。例如，当用于区分会话的标识信息发生变化时，该第四字段也可以相应变化。
综上所述，在本公开实施例之中，响应于传输层为NAS传输层，发送NAS消息至第二终端设备，其中，NAS消息中包括第四字段，第四字段用于携带用于区分会话的标识信息。本公开实施例之中，可以提 供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了在传输层具体为NAS传输层时发送用于区分会话的标识信息的方案。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图12为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第一终端设备执行，如图12所示，该方法可以包括以下步骤：
步骤1201、根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。
其中，在本公开的一个实施例之中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
进一步地，在本公开的一个实施例之中，其中，用于区分会话的标识信息是唯一的。
示例地，在本公开的一个实施例之中，如果一个标识会话的ID正在使用，第一终端设备不能使用该ID给新的回复啊，只能从ID集合中选择当前未被使用的ID。
示例地，在本公开的一个实施例之中，第一时长并不特指某一固定时长。该第一时长可以网络侧设备配置的时长，该可以是根据预配置确定的时长。该第一时长例如可以是10分钟。在一个会话结束后的第一时长内，该会话使用的标识会话的ID不能再次被使用。
进一步地，在本公开的一个实施例之中，根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。例如，可以是会话使用标识对应的会话在使用结束之后的在第一时长内不作为用于区分会话的标识信息。
综上所述，在本公开实施例之中，根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开实施例公开了根据会话使用标识确定用于区分会话的标识信息，减少会话标识重复使用导致无法区分会话的情况，可以提高确定用于区分会话的标识信息的准确性。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图13为本公开实施例所提供的一种会话区分方法的流程示意图，该方法由第二终端设备执行，如图13所示，该方法可以包括以下步骤：
步骤1301、在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收第一终端设备发送的用于区分会话的标识信息。
其中，在本公开的一个实施例之中，第二终端设备例如可以接收第一终端设备发送的SLPP消息和/或RSPP消息，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。即，第二终端设备可以接收到SLPP消息和/或RSPP消息以及接收到用于区分会话的标识信息。
以及，在本公开的一个实施例之中，第二终端设备接收第一终端设备发送的SLPP消息和/或RSPP消息时，第一终端设备可以在传输层中携带用于区分会话的标识信息，其中，传输层用于承载SLPP消息和/或RSPP消息，第二终端设备可以获取到用于区分会话的标识信息。
其中，传输层包括以下至少一项：
PC5-信令传输层PC5-S；
PC5-用户面传输层PC5-U；
控制面分组数据汇聚协议PDCP传输层；
PC5-无线资源管理传输层PC5-RRC；
非接入层NAS传输层。
以及，在本公开的一个实施例之中，响应于传输层为PDCP传输层，第二终端设备可以在PDCPData PDU的PDCP header中确定第一字段，其中，第一字段用于携带用于区分会话的标识信息，即第二终端设备可以接收用于区分会话的标识信息。
以及，在本公开的一个实施例之中，响应于传输层为PC5-S控制链路传输层，第二终端设备可以接收第一终端设备发送的PC5-S消息其中，PC5-S消息中包括第二字段，第二字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，响应于传输层为PC5-RRC控制面高层协议传输层，第二终端设备可以接收第一终端设备发送的RRC消息，其中，RRC消息的包头中包括第三字段，第三字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，在传输层为PC5-U数据链路传输层时，由于第一终端设备根据用于区分会话的标识信息，将SLPP消息和/或RSPP消息映射到PDU会话session和/或服务质量流QoS flow，第二终端设备可以PDU会话session和/或服务质量流QoS flow确定用于区分会话的标识信息。
以及，在本公开的一个实施例之中，响应于传输层为NAS传输层，第二终端设备可以接收第一终端设备发送的NAS消息，其中，NAS消息中包括第四字段，第四字段用于携带用于区分会话的标识信息。
以及，在本公开的一个实施例之中，在与第一终端设备建立SLPP会话和/或RSPP会话时，第二终端设备可以接收第一终端设备发送的用于区分会话的标识信息。
以及，在本公开的一个实施例之中，其中，用于区分会话的标识信息是唯一的。
综上所述，在本公开实施例之中，在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收第一终端设备发送的用于区分会话的标识信息。在本公开实施例之中，可以提供会话区分机制，接收第一终端设备发送的SLPP消息和/或RSPP消息以及用于会话的标识信息，减少仅接收SLPP消息和/或RSPP消息使得无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开针对一种“会话区分”这一情形提供了一种处理方法，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图14为本公开实施例所提供的一种会话区分装置的结构示意图，如图14所示，该装置1400可以设置于第一终端设备侧，该装置1400可以包括：
发送模块1401，用于响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。
综上所述，在本公开实施例的会话区分装置之中，通过发送模块响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备。在本公开实施例之中，可以提供会话区分机制，发送SLPP消息和/或RSPP消息以及用于会话的标识信息至第二终端设备，减少仅发送SLPP消息和/或RSPP消息使得第二终端设备无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开针对一种“会话区分”这一情形提供了一种处理装置，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
可选地，在本公开的一个实施例之中，发送模块1401，用于响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备时，具体用于：
发送SLPP消息和/或RSPP消息至第二终端设备，其中，SLPP消息和/或RSPP消息中包括用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，发送模块1401，用于响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至第二终端设备时，具体用于：
响应于发送SLPP消息和/或RSPP消息至第二终端设备，在传输层中携带用于区分会话的标识信息，其 中，传输层用于承载SLPP消息和/或RSPP消息。
可选地，在本公开的一个实施例之中，其中，传输层包括以下至少一项：
PC5-信令传输层PC5-S；
PC5-用户面传输层PC5-U；
控制面分组数据汇聚协议PDCP传输层；
PC5-无线资源管理传输层PC5-RRC；
非接入层NAS传输层。
可选地，在本公开的一个实施例之中，发送模块1401，用于在传输层中携带用于区分会话的标识信息时，具体用于：
响应于传输层为PDCP传输层，在PDCP数据Data协议数据单元PDU的分组数据汇聚协议包头PDCP header中增加第一字段，其中，第一字段用于携带用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，发送模块1401，用于在传输层中携带用于区分会话的标识信息时，具体用于：
响应于传输层为PC5-S控制链路传输层，发送PC5-S消息至第二终端设备，其中，PC5-S消息中包括第二字段，第二字段用于携带用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，发送模块1401，用于在传输层中携带用于区分会话的标识信息时，具体用于：
响应于传输层为PC5-RRC控制面高层协议传输层，发送无线资源控制RRC消息至第二终端设备，其中，RRC消息的包头中包括第三字段，第三字段用于携带用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，发送模块1401，用于在传输层中携带用于区分会话的标识信息时，具体用于：
在传输层为PC5-U数据链路传输层时，根据用于区分会话的标识信息，将SLPP消息和/或RSPP消息映射到PDU会话session和/或服务质量流QoS flow。
可选地，在本公开的一个实施例之中，发送模块1401，用于在传输层中携带用于区分会话的标识信息时，具体用于：
响应于传输层为NAS传输层，发送NAS消息至第二终端设备，其中，NAS消息中包括第四字段，第四字段用于携带用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，发送模块1401，用于发送用于区分会话的标识信息至第二终端设备时，具体用于：
在与第二终端设备建立SLPP会话和/或RSPP会话时，发送用于区分会话的标识信息至第二终端设备。
可选地，在本公开的一个实施例之中，其中，用于区分会话的标识信息是唯一的。
可选地，在本公开的一个实施例之中，发送模块1401，还用于：
根据会话使用标识，确定用于区分会话的标识信息，其中，会话使用标识用于指示在第一时长内会话使用标识对应的会话标识不作为用于区分会话的标识信息。
可选地，在本公开的一个实施例之中，其中，用于区分会话的标识信息，包括以下至少一项：
会话标识信息；
路由标识信息。
图15为本公开实施例所提供的一种会话区分装置的结构示意图，如图15所示，该装置1500可以设置于第二终端设备侧，该装置1500可以包括：
接收模块1501，用于在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收第一终端设备发送的用于区分会话的标识信息。
综上所述，在本公开实施例的会话区分装置之中，通过接收模块在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收第一终端设备发送的用于区分会话的标识信息。在本公开实施例之中，可以提供会话区分机制，接收第一终端设备发送的SLPP消息和/或RSPP消息以及用于会话的标识信息，减少仅接收 SLPP消息和/或RSPP消息使得无法确定与SLPP消息和/或RSPP消息对应的会话的情况。本公开针对一种“会话区分”这一情形提供了一种处理装置，以根据用于区分会话的标识信息，确定SLPP消息和/或RSPP消息对应的会话，减少消息交互准确性差的情况，可以提高SLPP消息和/或RSPP消息确定的准确性，提高定位信息确定的准确性。
图16是本公开一个实施例所提供的一种终端设备UE1600的框图。例如，UE1600可以是移动电话，计算机，数字广播终端设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图16，UE1600可以包括以下至少一个组件：处理组件1602，存储器1604，电源组件1606，多媒体组件1608，音频组件1610，输入/输出(I/O)的接口1612，传感器组件1614，以及通信组件1616。
处理组件1602通常控制UE1600的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1602可以包括至少一个处理器1620来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1602可以包括至少一个模块，便于处理组件1602和其他组件之间的交互。例如，处理组件1602可以包括多媒体模块，以方便多媒体组件1608和处理组件1602之间的交互。
存储器1604被配置为存储各种类型的数据以支持在UE1600的操作。这些数据的示例包括用于在UE1600上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1604可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1606为UE1600的各种组件提供电力。电源组件1606可以包括电源管理系统，至少一个电源，及其他与为UE1600生成、管理和分配电力相关联的组件。
多媒体组件1608包括在所述UE1600和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括至少一个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的唤醒时间和压力。在一些实施例中，多媒体组件1608包括一个前置摄像头和/或后置摄像头。当UE1600处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1610被配置为输出和/或输入音频信号。例如，音频组件1610包括一个麦克风(MIC)，当UE1600处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1604或经由通信组件1616发送。在一些实施例中，音频组件1610还包括一个扬声器，用于输出音频信号。
I/O接口1612为处理组件1602和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1614包括至少一个传感器，用于为UE1600提供各个方面的状态评估。例如，传感器组件1614可以检测到设备2600的打开/关闭状态，组件的相对定位，例如所述组件为UE1600的显示器和小键盘，传感器组件1614还可以检测UE1600或UE1600的一个组件的位置改变，用户与UE1600接触的存在或不存在，UE1600方位或加速/减速和UE1600的温度变化。传感器组件1614可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1614还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1614还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1616被配置为便于UE1600和其他设备之间有线或无线方式的通信。UE1600可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1616经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1616还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据 协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，UE1600可以被至少一个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
上述本公开提供的实施例中，分别从网络侧设备、UE的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和UE可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
上述本公开提供的实施例中，分别从网络侧设备、UE的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络侧设备和UE可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
本公开实施例提供的一种通信装置。通信装置可包括收发模块和处理模块。收发模块可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块可以实现发送功能和/或接收功能。
通信装置可以是终端设备(如前述方法实施例中的终端设备)，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。或者，通信装置可以是网络设备，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。
本公开实施例提供的另一种通信装置。通信装置可以是网络设备，也可以是终端设备(如前述方法实施例中的终端设备)，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置可以包括一个或多个处理器。处理器可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，网络侧设备、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选地，通信装置中还可以包括一个或多个存储器，其上可以存有计算机程序，处理器执行所述计算机程序，以使得通信装置执行上述方法实施例中描述的方法。可选地，所述存储器中还可以存储有数据。通信装置和存储器可以单独设置，也可以集成在一起。
可选地，通信装置还可以包括收发器、天线。收发器可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选地，通信装置中还可以包括一个或多个接口电路。接口电路用于接收代码指令并传输至处理器。处理器运行所述代码指令以使通信装置执行上述方法实施例中描述的方法。
通信装置为第一终端设备(如前述方法实施例中的终端设备)：处理器用于执行图2-图12任一所示的方法。
通信装置为第二终端设备(如前述方法实施例中的终端设备)：处理器用于执行图13任一所示的方法。
在一种实现方式中，处理器中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器可以存有计算机程序，计算机程序在处理器上运行，可使得通信装置执行上述方法实施例中描述的方法。计算机程序可能固化在处理器中，该种情况下，处理器可能由硬件实现。
在一种实现方式中，通信装置可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通 信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备(如前述方法实施例中的终端设备)，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选地，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，芯片包括处理器和接口。其中，处理器的数量可以是一个或多个，接口的数量可以是多个。
可选地，芯片还包括存储器，存储器用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等 区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (20)

  1. 一种会话区分方法，其特征在于，所述方法由第一终端设备执行，所述方法包括：
    响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备。
  2. 根据权利要求1所述的方法，其特征在于，所述响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备，包括：
    发送所述SLPP消息和/或所述RSPP消息至所述第二终端设备，其中，所述SLPP消息和/或所述RSPP消息中包括所述用于区分会话的标识信息。
  3. 根据权利要求1所述的方法，其特征在于，所述响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备，包括：
    响应于发送所述SLPP消息和/或所述RSPP消息至所述第二终端设备，在传输层中携带所述用于区分会话的标识信息，其中，所述传输层用于承载所述SLPP消息和/或所述RSPP消息。
  4. 根据权利要求3所述的方法，其特征在于，其中，所述传输层包括以下至少一项：
    PC5-信令传输层PC5-S；
    PC5-用户面传输层PC5-U；
    控制面分组数据汇聚协议PDCP传输层；
    PC5-无线资源管理传输层PC5-RRC；
    非接入层NAS传输层。
  5. 根据权利要求4所述的方法，其特征在于，所述在传输层中携带所述用于区分会话的标识信息，包括：
    响应于所述传输层为所述PDCP传输层，在PDCP数据Data协议数据单元PDU的分组数据汇聚协议包头PDCP header中增加第一字段，其中，所述第一字段用于携带所述用于区分会话的标识信息。
  6. 根据权利要求4所述的方法，其特征在于，所述在传输层中携带所述用于区分会话的标识信息，包括：
    响应于所述传输层为所述PC5-S控制链路传输层，发送PC5-S消息至所述第二终端设备，其中，所述PC5-S消息中包括第二字段，所述第二字段用于携带所述用于区分会话的标识信息。
  7. 根据权利要求4所述的方法，其特征在于，所述在传输层中携带所述用于区分会话的标识信息，包括：
    响应于所述传输层为所述PC5-RRC控制面高层协议传输层，发送无线资源控制RRC消息至所述第二终端设备，其中，所述RRC消息的包头中包括第三字段，所述第三字段用于携带所述用于区分会话的标识信息。
  8. 根据权利要求4所述的方法，其特征在于，所述在传输层中携带所述用于区分会话的标识信息，包括：
    在所述传输层为所述PC5-U数据链路传输层时，根据所述用于区分会话的标识信息，将所述SLPP消息和/或所述RSPP消息映射到PDU会话session和/或服务质量流QoS flow。
  9. 根据权利要4所述的方法，其特征在于，所述在传输层中携带所述用于区分会话的标识信息，包括：
    响应于所述传输层为所述NAS传输层，发送NAS消息至所述第二终端设备，其中，所述NAS消息中包括第四字段，所述第四字段用于携带所述用于区分会话的标识信息。
  10. 根据权利要求1所述的方法，其特征在于，所述发送用于区分会话的标识信息至所述第二终端设备，包括：
    在与所述第二终端设备建立SLPP会话和/或RSPP会话时，发送所述用于区分会话的标识信息至所述第二终端设备。
  11. 根据权利要求1所述的方法，其特征在于，其中，所述用于区分会话的标识信息是唯一的。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    根据会话使用标识，确定所述用于区分会话的标识信息，其中，所述会话使用标识用于指示在第一时长内所述会话使用标识对应的会话标识不作为所述用于区分会话的标识信息。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，其中，所述用于区分会话的标识信息，包括以下至少一项：
    会话标识信息；
    路由标识信息。
  14. 一种会话区分方法，其特征在于，所述方法由第二终端设备执行，所述方法包括：
    在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收所述第一终端设备发送的用于区分会话的标识信息。
  15. 一种会话区分装置，其特征在于，所述装置设置于第一终端设备侧，所述装置包括：
    发送模块，用于响应于发送直连定位协议SLPP消息和/或测距直连定位协议RSPP消息至第二终端设备，发送用于区分会话的标识信息至所述第二终端设备。
  16. 一种会话区分装置，其特征在于，所述装置设置于第二终端设备侧，所述装置包括：
    接收模块，用于在接收第一终端设备发送的SLPP消息和/或RSPP消息时，接收所述第一终端设备发送的用于区分会话的标识信息。
  17. 一种第一终端设备，其特征在于，所述设备包括处理器和存储器，其中，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至13中任一项所述的方法。
  18. 一种第二终端设备，其特征在于，所述设备包括处理器和存储器，其中，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求14中任一项所述的方法。
  19. 一种通信装置，其特征在于，包括：处理器和接口电路，其中
    所述接口电路，用于接收代码指令并传输至所述处理器；
    所述处理器，用于运行所述代码指令以执行如权利要求1至13或14中任一项所述的方法。
  20. 一种计算机可读存储介质，其特征在于，用于存储有指令，当所述指令被执行时，使如权利要求1至13或14中任一项所述的方法被实现。
PCT/CN2022/129672 2022-11-03 2022-11-03 会话区分方法、装置 Ceased WO2024092664A1 (zh)

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