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WO2025145361A1 - Procédé de communication, dispositif, système et support de stockage - Google Patents

Procédé de communication, dispositif, système et support de stockage Download PDF

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Publication number
WO2025145361A1
WO2025145361A1 PCT/CN2024/070478 CN2024070478W WO2025145361A1 WO 2025145361 A1 WO2025145361 A1 WO 2025145361A1 CN 2024070478 W CN2024070478 W CN 2024070478W WO 2025145361 A1 WO2025145361 A1 WO 2025145361A1
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WO
WIPO (PCT)
Prior art keywords
network element
message
user plane
plane connection
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/070478
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English (en)
Chinese (zh)
Inventor
宫昱冰
毛玉欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202480000130.7A priority Critical patent/CN120604594A/zh
Priority to PCT/CN2024/070478 priority patent/WO2025145361A1/fr
Publication of WO2025145361A1 publication Critical patent/WO2025145361A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a communication method, device, system and storage medium.
  • the terminal can be positioned using user plane positioning or control plane positioning.
  • User plane positioning can enable the communication system to have a more efficient communication load, a single session can handle multiple transactions, and can support multiple positioning methods.
  • a first aspect of an embodiment of the present disclosure provides a communication method, which is applied to a first network element.
  • the method includes:
  • a second aspect of the embodiments of the present disclosure provides a communication method, which is applied to a second network element.
  • the method includes:
  • a second message from the first network element is sent to the first terminal, where the second message is used to notify the first terminal to change the first user plane connection.
  • a third aspect of the embodiments of the present disclosure provides a communication method, which is applied to a first terminal, and the method includes:
  • a first network element including:
  • a second network element including:
  • a second transceiver module configured to send a first message to a first network element, and send a second message from the first network element to a first terminal;
  • the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element
  • the second message is used to notify the first terminal to change the first user plane connection.
  • a first terminal including:
  • a first network element including:
  • the first network element is used to execute an optional implementation method of the aforementioned first aspect.
  • a second network element including:
  • processors one or more processors
  • FIG. 1a is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • FIG1b is a schematic diagram of a flow chart of a wireless communication system according to an exemplary embodiment
  • FIG2a is a flow chart showing a communication method according to an exemplary embodiment
  • FIG2b is a flow chart showing a communication method according to an exemplary embodiment
  • FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.
  • FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure.
  • FIG6a is a schematic diagram of the structure of a first network element proposed in an embodiment of the present disclosure.
  • FIG6b is a schematic diagram of the structure of a second network element proposed in an embodiment of the present disclosure.
  • FIG6c is a schematic diagram of the structure of a first terminal provided in an embodiment of the present disclosure.
  • FIG7a is a flow chart of a communication method according to an embodiment of the present disclosure.
  • FIG8a is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a communication method, which is applied to a first network element.
  • the method includes:
  • third indication information used to indicate a condition for releasing the first user plane connection
  • first indication information used to indicate changing the first user plane connection
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • the method further includes:
  • a sixth message is sent to the second network element, where the sixth message is used to notify that the first user plane connection has changed.
  • the first network element when the first network element learns that the user plane connection between the first terminal has been released, it can inform the second network element that the user plane connection has changed, so that the second network element can learn the change status of the user plane connection between the first network element and the first terminal.
  • the first indication information is used to instruct the first terminal to establish a second user plane connection with the third network element, and the method further includes:
  • a seventh message is sent to the third network element, where the seventh message is used to transmit context information of the first terminal.
  • the first network element when the first network element learns that the user plane connection between the first terminal and the third network element has been established, the first network element may transmit the context information of the first terminal to the third network element to provide a basis for subsequent operations.
  • the first indication information is used to instruct the first terminal to establish a third user plane connection with the first network element.
  • the first network element when the first network element learns that the old user plane connection between the first terminal has been released, it can inform the second network element that the user plane connection between the second network element and the first terminal has rebuilt a third user plane connection, so that the second network element can learn the changed status of the user plane connection between the first network element and the first terminal.
  • the method before receiving the first message sent by the second network element, the method further includes:
  • An eighth message is sent to the second network element, where the eighth message is used to indicate a change in the first user plane connection.
  • the first network element may trigger a change process of the user plane connection with the first terminal, and indicate the change of the user plane connection with the first terminal in a message sent to the second network element, thereby implementing the change of the user plane connection.
  • first indication information used to indicate changing the first user plane connection
  • the PDU session is maintained.
  • the first indication information is used for the first terminal to establish a second user plane connection with the third network element, and the method further includes:
  • a third message is sent to the third network element via the second network element, where the third message is used to request to establish the second user plane connection with the third network element.
  • the method further includes:
  • a fourth message sent by the third network element is received via the second network element, where the fourth message is a response message to the third message.
  • the first indication information is used to instruct the first terminal to establish a third user plane connection with the first network element, and the method further includes:
  • the method further includes:
  • a fifth message is sent to the first network element via the second network element, where the fifth message is used to notify that the first user plane connection has been released.
  • an embodiment of the present disclosure provides a first network element, including:
  • a first transceiver module configured to receive a first message sent by a second network element, and send a second message to the first terminal via the second network element;
  • the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element
  • the second message is used to notify the first terminal to change the first user plane connection
  • the first message and the second message include first indication information, which is used to indicate changing the first user plane connection.
  • an embodiment of the present disclosure provides a second network element, including:
  • a second transceiver module configured to send a first message to a first network element, and send a second message from the first network element to the first terminal;
  • the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element
  • the second message is used to notify the first terminal to change the first user plane connection
  • the first message and the second message include first indication information, which is used to indicate changing the first user plane connection.
  • an embodiment of the present disclosure provides a first terminal, including:
  • a third transceiver module configured to receive a second message sent by the first network element via the second network element, where the second message is used to notify the first terminal to change the first user plane connection between the first terminal and the first network element;
  • the second message includes first indication information, which is used to indicate changing the first user plane connection.
  • an embodiment of the present disclosure provides a first network element, including:
  • processors one or more processors
  • the first network element is used to execute the method described in the optional implementation manner of the first aspect.
  • an embodiment of the present disclosure provides a second network element, including:
  • the first network element is used to receive a first message sent by the second network element, where the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element;
  • first indication information used to indicate changing the first user plane connection
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • the method further includes: a third network element, wherein the first indication information is used to instruct the first terminal to establish a second user plane connection with the third network element;
  • the IP address of the third network element is the IP address of the third network element.
  • the first indication information is used to instruct the first terminal to establish a third user plane connection with the first network element
  • the first terminal is further used to establish a third user plane connection with the first network element based on the first indication information.
  • the first network element is further used to receive a fifth message from the first terminal forwarded by the second network element, and the fifth message is used to notify that the first user plane connection has been released.
  • the third message includes at least one of the following information:
  • the sixth message includes the relevant ID corresponding to the first network element.
  • the eighth message includes at least one of the following information:
  • first indication information used to indicate changing the first user plane connection
  • an embodiment of the present disclosure proposes a storage medium, which stores instructions.
  • the communication device executes the method described in the optional implementation manner of the first aspect, the second aspect, or the third aspect.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily.
  • the solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • data, information, etc. may be obtained with the user's consent.
  • obtain can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.
  • the first network element may be a LMF, or a SF, or an enhanced LMF.
  • the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element.
  • changing the first user plane connection between the first terminal and the first network element includes: releasing the first user plane connection and re-establishing a third user plane connection between the first terminal and the first network element; or, releasing the first user plane connection and establishing a second user plane connection between the first terminal and the third network element.
  • the first message may include first indication information, used to instruct the first terminal to change the first user plane connection between the first terminal and the first network element.
  • the first indication information may instruct the first terminal to reestablish a user plane connection with the first network element, for example, a newly established third user plane connection.
  • the first message may further include: relevant information of the first network element, at least one of the second indication information and the third indication information.
  • the relevant information of the first network element may include an identifier (ID) of the first network element, an IP address (for example: LMF LCS-UP address) and at least one of the relevant ID corresponding to the first user plane connection.
  • ID identifier
  • IP address for example: LMF LCS-UP address
  • the relevant ID corresponding to the first user plane connection may also be the relevant ID corresponding to the first network element.
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • the third indication information is used to indicate that the condition for releasing the first user plane connection is to release the first user plane connection before or after the first terminal reestablishes a new user plane connection with the first network element (which may correspond to the third user plane connection mentioned above).
  • the condition for releasing the first user plane connection may be determined based on a service demand related to the first user plane connection.
  • the condition for releasing the first user plane connection is to release the first user plane connection before the first terminal reestablishes a new user plane connection with the first network element; otherwise, the first user plane connection is released after the first terminal reestablishes a new user plane connection with the first network element.
  • the first message may be a message related to user plane positioning, such as: LMF user plane positioning configuration request (Nlmf_Location_UPConfig Request) message, but the name of the message is not limited thereto.
  • LMF_Location_UPConfig Request LMF user plane positioning configuration request
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, and “data” can be used interchangeably.
  • the first network element sends a second message to the first terminal via the second network element.
  • the second message may be a user plane connection modification command message, but the name of the message is not limited thereto.
  • the first terminal releases the user plane connection with the first network element according to the second message.
  • the first terminal maintains a protocol data unit (PDU) session.
  • PDU protocol data unit
  • the first terminal even after the old user plane connection with the first network element is released based on the second message and there is no other activated user plane connection, the first terminal still maintains or sustains the PDU session without releasing it, so as to provide a basis for reestablishing a new user plane connection, thereby shortening the delay in establishing the user plane connection.
  • the first terminal re-establishes a user plane connection with the first network element according to the first indication information.
  • the first terminal sends a fifth message to the first network element via the second network element.
  • the fifth message is used to notify that the first user plane connection has been released.
  • the fifth message may be a user plane connection release complete message, but the name of the message is not limited thereto.
  • the fifth message may be a user plane connection re-establishment complete message, but the name of the message is not limited thereto.
  • the fifth message may be a user plane connection modification complete message, but the name of the message is not limited thereto.
  • step S206 includes S206-1, the first terminal sends a fifth message to the second network element.
  • the fifth message sent by the first terminal to the second network element may be carried by an uplink non-access layer transmission (UL NAS TRANSPROT) message.
  • UL NAS TRANSPROT uplink non-access layer transmission
  • the fifth message sent by the first terminal to the second network element includes a routing ID.
  • the second network element may convert the routing ID into a correlation ID.
  • step S206 includes S206-2, the second network element sends a fifth message to the first network element.
  • the fifth message sent by the second network element to the first network element may be carried by an AMF communication N1 notification (Namf_Communication_N1MessageNotify) message.
  • the fifth message sent by the second network element to the first network element includes a correlation ID.
  • the first network element sends a sixth message to the second network element.
  • the sixth message is used to notify the second network element that the user plane connection between the first network element and the first terminal has been reestablished.
  • the sixth message may be a message related to user plane positioning, for example, an LMF user plane positioning configuration response (Nlmf_Location_UPConfig Response) message, but the name of the message is not limited thereto.
  • LMF_Location_UPConfig Response LMF user plane positioning configuration response
  • the eighth message is used to indicate a change in a user plane connection with the first terminal.
  • step S201 it is also possible to:
  • the first message is used to indicate a change in a first user plane connection between the first terminal and the first network element.
  • the first message may further include: relevant information of the first network element, second indication information and third indication information, and at least one of relevant information of the third network element.
  • the second message is used to notify the first terminal to change the first user plane connection between the first terminal and the first network element.
  • the second message may include first indication information, which is used to instruct the first terminal to change the first user plane connection between the first network element.
  • the relevant information of the first network element may include at least one of an identifier (ID) of the first network element and a relevant ID corresponding to the first user plane connection.
  • ID an identifier
  • the relevant information of the third network element may include at least one of the identifier (ID) of the third network element, the LMF LCS-UP address, and the relevant ID corresponding to the second user plane connection.
  • ID the identifier of the third network element
  • LMF LCS-UP address the relevant ID corresponding to the second user plane connection.
  • the second indication information is used to indicate the release of the first user plane connection.
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • the third indication information is used to indicate that a condition for releasing the first user plane connection is to release the first user plane connection before or after the first terminal establishes the second user plane connection with the third network element.
  • the second message may be a user plane connection release command message, but the name of the message is not limited thereto.
  • the second message may be a user plane connection re-establishment command message, but the name of the message is not limited thereto.
  • the second message may be a user plane connection modification command message, but the name of the message is not limited thereto.
  • step S212 includes S212-1, the first network element sends a second message to the second network element.
  • the second message sent by the first network element to the second network element can be carried by an AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • step S212 includes S212-2, the second network element sends a second message to the first terminal.
  • the first terminal releases the user plane connection with the first network element according to the second message.
  • the first terminal may release the user plane connection with the first network element according to at least one of the first indication information, the second indication information and the third indication information in the second message.
  • the first terminal maintains a protocol data unit (PDU) session.
  • PDU protocol data unit
  • the first terminal even after the old user plane connection with the first network element is released based on the second message and there is no other activated user plane connection, the first terminal still maintains or sustains the PDU session without releasing it, so as to provide a basis for reestablishing a new user plane connection, thereby shortening the delay in establishing the user plane connection.
  • the first terminal sends a third message to the third network element via the second network element.
  • the third message is used to request to establish a second user plane connection with a third network element.
  • the third message may be a user plane connection establishment request (user plane connection establishment reqeust) message, but the name of the message is not limited thereto.
  • step S215 includes S215-1, the first terminal sends a third message to the second network element.
  • the third message sent by the first terminal to the second network element may be carried by an uplink non-access layer transmission (UL NAS TRANSPROT) message.
  • UL NAS TRANSPROT uplink non-access layer transmission
  • the third message sent by the first terminal to the second network element includes the routing ID2 corresponding to the second user plane connection.
  • the second network element may convert routing ID2 into correlation ID2.
  • step S215 includes S215-2, the second network element sends a third message to the third network element.
  • the third message sent by the second network element to the third network element includes the correlation ID2.
  • the third network element sends a fourth message to the first terminal via the second network element.
  • the fourth message is used to notify the first terminal whether to agree to establish the second user plane connection.
  • the fourth message is a response message to the third message, for example, a user plane connection establishment response message, but the name of the message is not limited thereto.
  • step S216 includes S216-1, the third network element sends a fourth message to the second network element.
  • the fourth message sent by the third network element to the second network element can be carried by an AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • the fourth message sent by the third network element to the second network element includes the correlation ID2.
  • the second network element may convert the correlation ID2 into a routing ID2.
  • step S216 includes S216-2, the second network element sends a fourth message to the first terminal.
  • the fourth message sent by the second network element to the first terminal may be carried by a downlink non-access layer transmission (DL NAS TRANSPROT) message.
  • DL NAS TRANSPROT downlink non-access layer transmission
  • the fourth message sent by the second network element to the first terminal includes routing ID2.
  • the first terminal if the fourth message received by the first terminal carries indication information of whether to agree to establish a second user plane connection with the first terminal, the first terminal establishes a second user plane connection with the third network element.
  • the first terminal sends a fifth message to the first network element via the second network element.
  • the fifth message is used to notify that the first user plane connection has been released.
  • the fifth message may be a user plane connection re-establishment complete message, but the name of the message is not limited thereto.
  • the fifth message sent by the first terminal to the second network element may be carried by an uplink non-access layer transmission (UL NAS TRANSPROT) message.
  • UL NAS TRANSPROT uplink non-access layer transmission
  • the fifth message sent by the first terminal to the second network element includes routing ID1.
  • the second network element may convert routing ID1 into correlation ID1.
  • step S218 includes S218-2, the second network element sends a fifth message to the first network element.
  • the fifth message sent by the second network element to the first network element may be carried by an AMF communication N1 notification (Namf_Communication_N1MessageNotify) message.
  • the fifth message sent by the second network element to the first network element includes the correlation ID1.
  • the first network element sends a seventh message to the third network element.
  • the seventh message is used to transmit context information of the first terminal.
  • the seventh message may be an LMF location context transfer request (Nlmf_Location_LocationContextTransfer Request) message, but the name of the message is not limited thereto.
  • the first network element may also receive a response message to the seventh message sent by the third network element, for example: LMF location context transfer response (Nlmf_Location_LocationContextTransfer Response) message, but the name of the message is not limited thereto.
  • LMF location context transfer response Nlmf_Location_LocationContextTransfer Response
  • the first network element sends a sixth message to the second network element.
  • the sixth message may be a message related to user plane positioning, such as: LMF user plane positioning configuration response (Nlmf_Location_UPConfig Response) message, but the name of the message is not limited thereto.
  • LMF_Location_UPConfig Response LMF user plane positioning configuration response
  • step S211 the following steps may also be included:
  • the first network element determines to change the user plane connection between the first network element and the first terminal.
  • the first network element determines to release a first user plane connection between the first terminal and the first terminal, and determines to establish a second user plane connection between the first terminal and the third network element.
  • the first network element sends an eighth message to the second network element.
  • the eighth message may include at least one of the following:
  • the first indication information is used to instruct the first terminal to change the first user plane connection between the first terminal and the first network element
  • the second indication information is used to instruct to release the first user plane connection
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • the first indication information is used to instruct the first terminal to establish a second user plane connection with the third network element.
  • the eighth message may be a message related to user plane positioning, for example, an LMF user plane positioning notification (Nlmf_Location_UPNotify) message, but the name of the message is not limited thereto.
  • LMF_Location_UPNotify LMF user plane positioning notification
  • step S211 it is also possible to:
  • the second network element determines to change the user plane connection between the first network element and the first terminal.
  • the second network element determines to release the first user plane connection between the second network element and the first terminal.
  • the second network element determines to release the first user plane connection between the second network element and the first terminal, and determines to establish a second user plane connection between the first terminal and the third network element.
  • the second network element may select a target network element, such as the second network element, to establish a user plane connection with the first terminal based on the LMF service area and LMF user plane positioning capability information.
  • the first network element or the second network element may determine that the first terminal establishes a user plane connection with a third network element.
  • the method involved in the embodiment of the present disclosure may include at least one of steps S210a-1 to S2110.
  • steps S211 and S212 may be implemented as independent embodiments
  • steps S211, S212, and S213 may be implemented as independent embodiments
  • steps S211, S212, S213, S215, S216, and S217 may be implemented as independent embodiments
  • steps S211 to S217 may be implemented as independent embodiments
  • steps S211, S212, S213, S215, S216, and S217 may be implemented as independent embodiments
  • steps S211 to S217 may be implemented as independent embodiments
  • steps S211, S212, S213, S215, S216, S217, and S218 may be implemented as independent embodiments
  • steps S211 to S218 may be implemented as independent embodiments.
  • steps S210a-1 and S210a-2 are optional and can be combined with the above-mentioned embodiments implemented as independent embodiments. In different embodiments, one or more of these steps can be omitted or replaced.
  • step S210b is optional and can be combined with the above-mentioned embodiments implemented as independent embodiments. In different embodiments, one or more of these steps can be omitted or replaced.
  • step S214 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the communication method may be executed by a first network element, and the method includes:
  • the first message includes at least one of the following information:
  • the above method may further include:
  • a fifth message sent by the first terminal is received via the second network element, where the fifth message is used to notify that the first user plane connection has been released.
  • the above method may further include:
  • a sixth message is sent to the second network element, where the sixth message is used to notify that the first user plane connection has changed.
  • the first indication information is used to instruct the first terminal to establish a second user plane connection with the third network element, and the method further includes:
  • the sixth message includes a correlation ID corresponding to the first network element.
  • a seventh message is sent to the third network element, where the seventh message is used to transmit context information of the first terminal.
  • the first indication information is used to instruct the first terminal to establish a third user plane connection with the first network element.
  • the method before receiving the first message sent by the second network element, the method further includes:
  • An eighth message is sent to the second network element, where the eighth message is used to indicate a change in the first user plane connection.
  • first indication information used to indicate changing the first user plane connection
  • the third indication information is used to indicate a condition for releasing the first user plane connection.
  • FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the communication method can be executed by a first terminal, and the method includes:
  • S401 Receive a second message sent by a first network element via a second network element, where the second message is used to notify the first terminal to change a first user plane connection between the first terminal and the first network element.
  • the second message further includes at least one of the following information:
  • the units or modules in the device can be implemented in the form of hardware circuits, which can be realized by hardware circuits.
  • the functions of some or all units or modules are realized by designing a circuit, and the above-mentioned hardware circuit can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD), taking a field programmable gate array (FPGA) as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of some or all of the above units or modules.
  • PLD programmable logic device
  • FPGA field programmable gate array
  • the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.
  • ASIC Neural Network Processing Unit
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • the present disclosure also provides an optional implementation scheme for determining to reestablish a user plane connection between a first terminal (UE) and a first network element (LMF1). As shown in FIG7a , the process may include the following steps:
  • LMF1 sends a user plane positioning notification (Nlmf_Location_UPNotify) message (which may correspond to the eighth message mentioned above) to AMF (which may correspond to the second network element mentioned above).
  • Nlmf_Location_UPNotify a user plane positioning notification
  • the message may include re-establishment indication (which may be described as a reconstruction indication) information (which may correspond to the first indication information above) for indicating the movement of the user plane connection (termination of the old connection and establishment of a new connection), which is used to instruct the UE to re-establish the user plane connection with LMF1, or to instruct the UE to establish a new user plane connection with LMF1.
  • re-establishment indication which may be described as a reconstruction indication
  • the message may also include release indication information (which may also be described as termination indication information, which may correspond to the second indication information mentioned above), which is used to instruct the UE to release the original user plane connection (old user plane connection) between the UE and LMF1.
  • release indication information which may also be described as termination indication information, which may correspond to the second indication information mentioned above
  • the message may also include indication information for instructing to release the old user plane connection before the new user plane connection is established, or indication information for instructing to release the old user plane connection after the new user plane connection is established (which may correspond to the third indication information above).
  • AMF determines to re-establish the user plane connection between the UE and LMF1.
  • the AMF may determine to release the old user plane connection before the new user plane connection is established, or to release the old user plane connection after the new user plane connection is established.
  • AMF can also allocate related ID 1 for re-establishing the user plane connection between UE and LMF1.
  • AMF sends a user plane positioning configuration request (Nlmf_Location_UPConfig Request) message to LMF1 (which may correspond to the first message above).
  • the message includes re-establishment indication (which can be described as reconstruction indication) information (which can correspond to the first indication information above) used to instruct the UE to re-establish the user plane connection with LMF1, or to instruct the UE to establish a new user plane connection with LMF1.
  • re-establishment indication which can be described as reconstruction indication
  • reconstruction indication which can correspond to the first indication information above
  • the message may also include release indication information (which may correspond to the second indication information mentioned above), which is used to instruct the UE to release the original user plane connection (old user plane connection) between the UE and LMF1.
  • release indication information which may correspond to the second indication information mentioned above, which is used to instruct the UE to release the original user plane connection (old user plane connection) between the UE and LMF1.
  • the message may also include indication information for indicating the release of the old user plane connection after the new user plane connection is established, or indication information for indicating the release of the old user plane connection before the new user plane connection is established (which may correspond to the third indication information above), which can be briefly described below as: release indication after establishment/before establishment.
  • the message may include a request for LMF1 to terminate a specific user plane connection with the UE.
  • the message may also include information about the AMF reallocation, for example: Correlation ID 1.
  • LMF1 sends a user plane connection release command message to AMF (which may correspond to the second message above).
  • the user plane connection release command message can be carried by the AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • the user plane connection release command message may include a re-establishment indication and a post-establishment/pre-establishment release indication.
  • the user plane connection release command message may also include relevant ID1.
  • the user plane connection release command message as well as at least one of the re-establishment indication, the post-establishment/pre-establishment release indication and the related ID1 can be carried by the AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • LMF1 selects LMF2 (i.e. the changed LMF, which can also be described as the target LMF or the new LMF)
  • LMF1 which can be described as the source LMF or the old LMF
  • LMF1 can allocate the relevant ID2 to the selected LMF2 (which can correspond to the third network element mentioned above).
  • LMF1 sends a user plane location notification (Nlmf_Location_UPNotify) message to AMF (which may correspond to the first Eight news).
  • Nlmf_Location_UPNotify a user plane location notification
  • the message may include modification indication information (which may correspond to the first indication information mentioned above) for indicating the movement of the user plane connection (including: termination of the old connection and establishment of a new connection), which is used to instruct the UE to establish a user plane connection with LMF2.
  • modification indication information which may correspond to the first indication information mentioned above
  • the message may also include the ID of LMF2 (for example: LFM ID2).
  • LMF1 may perform LMF selection and may select a new LMF (ie, LMF2), and if LMF2 is selected, then LMF1 will include the ID of LMF2 in the message.
  • LMF1 can send a post-establishment/pre-establishment release indication to AMF.
  • LMF1 can also send correlation ID 1 and assigned correlation ID 2 to AMF.
  • AMF determines to modify the user plane connection between the UE and LMF1.
  • the AMF may be outside the service area of LMF1 and in the service area of the target LMF.
  • AMF selects the target LMF for the current UE location based on the identifier of the target LMF for user plane positioning received from LMF1 (i.e., LMF ID2), or based on the LMF service area and LMF user plane positioning capability information. LMF needs to be able to establish a user plane session for positioning with the UE.
  • the AMF may determine to release the old user plane connection before the new user plane connection is established, or to release the old user plane connection after the new user plane connection is established.
  • AMF can also allocate related ID 2 for modifying the user plane connection between UE and LMF1.
  • AMF sends a Nlmf_Location_UPConfig request message to LMF1 (which may correspond to the first message above).
  • the message may include modification indication information (which may correspond to the first indication information mentioned above) for indicating the movement of the user plane connection, which is used to instruct the UE to establish a user plane connection with LMF2.
  • modification indication information (which may correspond to the first indication information mentioned above) for indicating the movement of the user plane connection, which is used to instruct the UE to establish a user plane connection with LMF2.
  • the message may also include the ID of LMF2 (for example: LFM ID2).
  • AMF can send a post-establishment/pre-establishment release indication to LMF1.
  • the message may include a request for LMF1 to terminate a specific user plane connection with the UE and an identifier of a target LMF.
  • the message may also include information about the AMF reallocation, for example: Correlation ID 2.
  • LMF1 sends a user plane connection release command message to AMF (which may correspond to the second message above).
  • the user plane connection release command message can be carried by the AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • the user plane connection release command message may include a modification indication and a post-establishment/pre-establishment release indication.
  • the user plane connection release command message may also include at least one of the LMF LCS-UP address of the relevant ID1, LMF2 and the relevant ID2.
  • the user plane connection release command message as well as the modification indication, the post-establishment/pre-establishment release indication and at least one of the LMF LCS-UP addresses of the related ID1, LMF2 and the related ID2, can be carried by the AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • AMF converts the related ID1 and the related ID2 into routing ID1 and routing ID2 respectively, and sends the routing ID1 and routing ID2 together with the user plane connection release command to the UE.
  • the AMF may send routing ID1 and routing ID2 together with a user plane connection release command message to the UE via a downlink non-access stratum transport (DL NAS TRANSPROT) message.
  • DL NAS TRANSPROT downlink non-access stratum transport
  • the UE releases the old user plane connection with LMF1 based on the modification indication received in step S715 and/or the release indication after/before establishment.
  • the PDU session is still maintained without releasing it to provide a basis for re-establishing a new user plane connection, thereby shortening the delay in establishing the user plane connection.
  • UE sends a user plane connection establishment request message corresponding to routing ID2 to LMF2 through AMF (which may correspond to the third message above), and LMF2 sends a user plane connection establishment response message corresponding to related ID2 through AMF (which may correspond to the fourth message above). information) to UE.
  • the UE may transmit the user plane connection establishment request message to the AMF via an uplink non-access stratum transport (UL NAS TRANSPROT) message.
  • UL NAS TRANSPROT uplink non-access stratum transport
  • AMF may transmit the user plane connection establishment request message to LMF2 via an AMF communication N1 notification (Namf_Communication_N1MessageNotify) message.
  • AMF communication N1 notification (Namf_Communication_N1MessageNotify) message.
  • LMF2 can transmit the user plane connection establishment response message to AMF via the AMF communication N1N2 transmission (Namf_Communication_N1N2MessageTransfer) message.
  • the AMF may transmit the user plane connection establishment response message to the UE via a downlink non-access stratum transport (DL NAS TRANSPROT) message.
  • DL NAS TRANSPROT downlink non-access stratum transport
  • the UE When the user plane connection establishment response message received by the UE indicates that LMF2 accepts to establish a user plane connection with the UE, the UE establishes a new user plane connection with LMF2.
  • the UE can send the user plane connection release completion message to the AMF via an uplink non-access stratum transport (UL NAS TRANSPROT) message.
  • UL NAS TRANSPROT uplink non-access stratum transport
  • a modification indication may be included in the user plane connection release completion message to indicate to the AMF that the modification of the user plane connection with routing ID 1 is complete.
  • AMF forwards the message from the UE to LMF1 indicated by routing ID1, and converts routing ID1 into related ID1.
  • AMF can send the user plane connection release completion message to LMF1 through the AMF communication N1 notification (Namf_Communication_N1MessageNotify) message.
  • LMF1 After LMF1 receives the message from the UE via AMF, it transfers the UE context to LMF2.
  • LMF1 transfers the UE context to LMF2 through the LMF positioning context transfer request (Nlmf_Location_LocationContextTransfer Request) message (which can correspond to the seventh message above).
  • LMF positioning context transfer request (Nlmf_Location_LocationContextTransfer Request) message (which can correspond to the seventh message above).
  • LFM2 can send a response message to LFM1, such as an LMF location context transfer response (Nlmf_Location_LocationContextTransfer Response) message.
  • LFM1 LMF location context transfer response
  • LMF1 sends a user plane positioning configuration response (Nmf_Location_UPConfig Response) message to AMF (which may correspond to the sixth message above) to notify AMF that the modification process of the user plane connection has been completed.
  • Nmf_Location_UPConfig Response a user plane positioning configuration response
  • the message may include relevant ID1 and modification completion indication information.
  • FIG8a is a schematic diagram of the structure of a communication device 900 proposed in an embodiment of the present disclosure.
  • the communication device 900 may be a network element (such as the first network element, the second network element, etc. mentioned above), or a terminal (such as a user equipment, etc.), or a chip, a chip system, or a processor, etc. that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor, etc. that supports a terminal to implement any of the above methods.
  • the communication device 900 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 900 includes one or more processors 901.
  • the processor 901 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the processor 901 is used to call instructions so that the communication device 900 executes any of the above methods.
  • the communication device 900 further includes one or more transceivers 902.
  • the transceiver 902 performs the communication steps such as sending and/or receiving in the above method (for example, steps S200a-2, S201, S202-1, S202-2, S206-1, S206-2, S207 shown in FIG. 2a, steps S210a-2, S211, S212-1, S212-2, S215-1, S216-1, S217 shown in FIG. 2b).
  • the processor 901 performs at least one of the other steps (for example, steps S200a-1, S200b, S203, S204, S205 shown in FIG. 2a, at least one of steps S210a-1, S210b, S213, S213, S214, S217 shown in FIG. 2b, but not limited to these).
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated together.
  • the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc. may be interchangeable, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. may be interchangeable, and the receiver, receiving unit, receiver, The terms receiving circuit and the like are used interchangeably.
  • the communication device 900 further includes one or more memories 902 for storing instructions.
  • the memory 902 may also be outside the communication device 900.
  • the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 900 further includes one or more interface circuits 904, which are connected to the memory 902.
  • the interface circuit 904 can be used to receive signals from the memory 902 or other devices, and can be used to send signals to the memory 902 or other devices.
  • the interface circuit 904 can read instructions stored in the memory 902 and send the instructions to the processor 901.
  • the communication device 900 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 900 described in the embodiment of the present disclosure is not limited thereto, and the structure of the communication device 900 may not be limited by FIG. 8a.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • the processor 911 performs at least one of the other steps (for example, at least one of steps S200a-1, S200b, S203, S204, S205 shown in Figure 2a, and steps S210a-1, S210b, S213, S213, S214, S217 shown in Figure 2b, but not limited to these).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente divulgation, qui relève du domaine technique des communications, divulguent un procédé et un appareil de communication, ainsi qu'un support de stockage lisible par ordinateur. Le procédé de communication comprend : la réception d'un premier message envoyé par un second élément de réseau, et l'envoi d'un second message à un premier terminal par le biais du second élément de réseau, le premier message étant utilisé pour indiquer un changement dans une première connexion de plan d'utilisateur entre le premier terminal et un premier élément de réseau, et le second message étant utilisé pour notifier au premier terminal de changer la première connexion de plan d'utilisateur. Les modes de réalisation de la présente divulgation fournissent une solution sur la manière de changer une connexion de plan d'utilisateur entre un premier terminal et un premier élément de réseau.
PCT/CN2024/070478 2024-01-03 2024-01-03 Procédé de communication, dispositif, système et support de stockage Pending WO2025145361A1 (fr)

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CN202480000130.7A CN120604594A (zh) 2024-01-03 2024-01-03 通信方法、设备、系统及存储介质
PCT/CN2024/070478 WO2025145361A1 (fr) 2024-01-03 2024-01-03 Procédé de communication, dispositif, système et support de stockage

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938758A (zh) * 2009-07-02 2011-01-05 中兴通讯股份有限公司 用户面连接状态获取方法及装置
CN109548109A (zh) * 2017-08-14 2019-03-29 电信科学技术研究院 一种ue和网络状态不匹配的处理方法及装置
WO2022205244A1 (fr) * 2021-03-31 2022-10-06 华为技术有限公司 Procédé et appareil destinés à établir une connexion de plan utilisateur
WO2023160626A1 (fr) * 2022-02-28 2023-08-31 华为技术有限公司 Procédé et appareil de communication
CN116889083A (zh) * 2023-05-12 2023-10-13 北京小米移动软件有限公司 用户面连接建立方法及装置、存储介质

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101938758A (zh) * 2009-07-02 2011-01-05 中兴通讯股份有限公司 用户面连接状态获取方法及装置
CN109548109A (zh) * 2017-08-14 2019-03-29 电信科学技术研究院 一种ue和网络状态不匹配的处理方法及装置
WO2022205244A1 (fr) * 2021-03-31 2022-10-06 华为技术有限公司 Procédé et appareil destinés à établir une connexion de plan utilisateur
WO2023160626A1 (fr) * 2022-02-28 2023-08-31 华为技术有限公司 Procédé et appareil de communication
CN116889083A (zh) * 2023-05-12 2023-10-13 北京小米移动软件有限公司 用户面连接建立方法及装置、存储介质

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