WO2019205027A1 - 会话建立方法、中继设备的选择方法和注册方法及设备 - Google Patents

会话建立方法、中继设备的选择方法和注册方法及设备 Download PDF

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Publication number
WO2019205027A1
WO2019205027A1 PCT/CN2018/084477 CN2018084477W WO2019205027A1 WO 2019205027 A1 WO2019205027 A1 WO 2019205027A1 CN 2018084477 W CN2018084477 W CN 2018084477W WO 2019205027 A1 WO2019205027 A1 WO 2019205027A1
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WIPO (PCT)
Prior art keywords
relay device
indication information
information
nssais
request message
Prior art date
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PCT/CN2018/084477
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English (en)
French (fr)
Inventor
杨皓睿
金辉
窦凤辉
段小嫣
李小娟
欧阳国威
Original Assignee
华为技术有限公司
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.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201880083577.XA priority Critical patent/CN111567113B/zh
Priority to EP18916722.4A priority patent/EP3780804A4/en
Priority to PCT/CN2018/084477 priority patent/WO2019205027A1/zh
Priority to US17/050,281 priority patent/US11350356B2/en
Priority to CN202410063202.4A priority patent/CN117856999A/zh
Publication of WO2019205027A1 publication Critical patent/WO2019205027A1/zh
Priority to US17/662,525 priority patent/US20220264442A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0096Indication of changes in allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/24Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246Connectivity information discovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a session establishment method, a method, and a registration method and device for a relay device.
  • the 5G core network can accommodate more different access network technologies; it is not limited to wireless access networks composed of traditional base stations (Radio).
  • Access Network, RAN for example, 4G E-UTRAN (Evolved UMTS Terrestrial Radio Access Network), 5G New Radio (NR), can also integrate wired broadband access technology into the 5G core network.
  • RAN wireless access networks
  • 4G E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • NR 5G New Radio
  • WIFI Wireless Fidelity
  • an access point (AP) or Customer Premises Equipment (CPE) is usually connected to the wired broadband, and then the AP or CPE converts the signal into a wireless signal, for example: WIFI or Device to Device (D2D).
  • the User Equipment (UE) is connected to the AP or CPE through a wireless signal.
  • the UE can implement signaling interaction and data transmission with the core network through the wired broadband access network.
  • the UE accesses the CPE, and the CPE accesses the core network through the RAN, thereby implementing signaling interaction and data transmission between the UE and the core network.
  • Each virtual network is a network slice.
  • Each session belongs to one network slice, and different network sliced sessions need to use different network resources.
  • the UE may acquire a Single-Network Slice Selection Assistance Information (S-NSSAI) that is allowed to be used by the UE through the registration process, and the UE can only establish a session in the network slice identified in the S-NSSAI that it is allowed to use.
  • S-NSSAI Single-Network Slice Selection Assistance Information
  • the CPE can also obtain the S-NSSAI allowed by the CPE through the registration process.
  • the signaling interaction and data transmission between the UE and the core network needs to use a data transmission channel between the CPE and the RAN, that is, a Data Resource Bearer (DRB).
  • DRB Data Resource Bearer
  • the embodiment of the present invention provides a session establishment method, a method for selecting a relay device, and a registration method, a device, and a system, which can enable a UE to establish a session in a network slice through a relay device, and improve the UE in the network slice through the relay device. Establish a success rate for the session.
  • the present application provides a session establishment method and apparatus.
  • the method may include: the access network device receives the first message sent by the user equipment UE, where the first session establishment request message and the S-NSSAI requested by the UE are used; and the access network device sends the UE to the UE.
  • a request message includes the DRB configuration information and a UE identity.
  • the access network device selects the relay device for the UE, and the DRB in the network slice requested by the UE transmits signaling and/or data for the UE, and notifies the UE and the relay device by using a reconfiguration request message. In this way, the UE can establish a session within a network slice through the relay device.
  • the access network device before the access network device sends the first reconfiguration request message to the UE, the access network device sends a third reconfiguration request message to the relay device, to indicate that the relay device establishes the UE request to use
  • the S-NSSAI corresponds to the DRB.
  • the relay device if the relay device does not have a DRB within the slice that the UE requests to use, the DRB of the relay device within the slice is established for transmitting signaling and/or data of the UE.
  • the access network device before the access network device receives the first message sent by the UE, the access network device receives the second message sent by the relay device, where the second message includes the second session establishment request message and the UE.
  • the relay device if the relay device does not establish a session within the slice requested by the UE, the session of the relay device within the slice is established, and the DRB corresponding to the session of the relay device within the slice can be used for transmission. Signaling and/or data of the UE.
  • the present application further provides a session establishing apparatus, which can implement the session establishing method described in the first aspect.
  • the device may be an access network device or a chip applied to the access network device, and may be another device capable of implementing the foregoing session establishment method, which may be implemented by software, hardware, or by executing corresponding software through hardware. method.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the first aspect method described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: a receiving module and a transmitting module.
  • the receiving module is configured to receive a first message sent by the user equipment UE, where the first message includes a first session establishment request message and an S-NSSAI requested by the UE, and the sending module is configured to send a first reconfiguration request message to the UE.
  • the first reconfiguration request message includes a first session setup response message and DRB configuration information, where the DRB configuration information is information of a DRB corresponding to the S-NSSAI; and the access network device sends a second weight to the relay device.
  • a request message where the second reconfiguration request message includes the DRB configuration information and a UE identity of the UE.
  • the sending module is further configured to: before the access network device sends the first reconfiguration request message to the UE, send a third reconfiguration request message to the relay device, to instruct the relay device to establish the The DRB corresponding to the S-NSSAI requested by the UE.
  • the receiving module is further configured to: before the access network device receives the first message sent by the UE, receive a second message sent by the relay device, where the second message includes a second session establishment request message and The S-NSSAI is requested by the UE; the sending module is further configured to send a fourth reconfiguration request message to the relay device, where the second session setup response message is included.
  • the present application provides a session establishment method and apparatus.
  • the method may include: the relay device receives a reconfiguration request message sent by the access network device, where the DRB configuration information and the UE identity of the UE, where the DRB configuration information is used by the UE - information of the DRB corresponding to the NSSAI; the relay device transmits the signaling and/or data of the UE on the DRB corresponding to the DRB configuration information.
  • the relay device transmits signaling and/or data to the UE by using the DRB in the network slice requested by the UE according to the indication of the access network device. In this way, the UE can establish a session within a network slice through the relay device.
  • the relay device before the relay device receives the reconfiguration request message sent by the access network device, the relay device receives a third reconfiguration request message sent by the access network device, and is used to instruct the relay device to establish the UE.
  • the relay device if the relay device does not have a DRB within the slice that the UE requests to use, the DRB of the relay device within the slice is established for transmitting signaling and/or data of the UE.
  • the relay device before the relay device receives the reconfiguration request message sent by the access network device, the relay device receives the first request message sent by the UE, where the first request message includes the S- The NSSAI; the relay device sends a first response message to the UE, where the first indication information is used to indicate that the relay device establishes the session successfully within the S-NSSAI.
  • the relay device determines that there is a session in the slice requested by the UE, that is, the UE can be notified to enable the UE to determine that the relay device has a session within the slice, and the UE can establish a session within the slice.
  • the relay device determines that if the relay device does not establish a session within the S-NSSAI requested by the UE, the first device sends a message to the access network device.
  • the second message includes a session establishment request message and an S-NSSAI requested by the UE.
  • the relay device receives a fourth reconfiguration request message sent by the access network device, where the second session establishment response message is included.
  • the relay device if the relay device does not establish a session within the slice requested by the UE, the session of the relay device within the slice is established, and the DRB corresponding to the session of the relay device within the slice can be used for transmission. Signaling and/or data of the UE.
  • the present application further provides a session establishing apparatus, which can implement the session establishing method according to the second aspect.
  • the device may be a relay device or a chip applied to the relay device, and may be other devices capable of implementing the above session establishment method, which may implement the above method by software, hardware, or by executing corresponding software through hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the second aspect method described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: a receiving module and a processing module.
  • the receiving module is configured to receive a reconfiguration request message sent by the access network device, where the DRB configuration information and the UE identifier of the UE are used, where the DRB configuration information is information about the DRB corresponding to the S-NSSAI that the UE requests to use; For transmitting signaling and/or data of the UE on the DRB corresponding to the DRB configuration information.
  • the receiving module is further configured to: before receiving the reconfiguration request message sent by the access network device, receive a third reconfiguration request message sent by the access network device, to indicate that the relay device establishes the UE request The DRB corresponding to the S-NSSAI used.
  • the receiving module is further configured to: before receiving the reconfiguration request message sent by the access network device, receive the first request message sent by the UE, where the S-NSSAI requested by the UE is used; the device may also The sending module is configured to send a first response message to the UE, where the first indication information is used to indicate that the relay device establishes a session success in the S-NSSAI.
  • the processing module is further configured to determine whether the relay device establishes a session within the S-NSSAI requested by the UE; if the processing module determines that the relay device does not establish a session within the S-NSSAI requested by the UE,
  • the sending module is further configured to send a second message to the access network device before sending the first response message to the UE, where the second message includes a session establishment request message and an S-NSSAI requested by the UE, and the receiving module is further configured to receive And a fourth reconfiguration request message sent by the access network device, where the second session setup response message is included.
  • the present application provides a session establishment method and apparatus.
  • the method may include: the UE sends a first message to the access network device, where the first session setup request message and the S-NSSAI requested by the UE are used; and the UE receives the first sent by the access network device.
  • a reconfiguration request message including a first session setup response message and DRB configuration information, where the DRB configuration information is information of a DRB corresponding to the S-NSSAI; and the UE transmits signaling and/or data on the DRB corresponding to the DRB configuration information.
  • the UE uses the DRB of the relay device in the network slice requested by the UE to transmit signaling and/or data to the UE according to the indication of the access network device. In this way, the UE can establish a session within a network slice through the relay device.
  • the UE before the UE sends the first message to the access network device, the UE sends a first request message to the relay device, where the S-NSSAI requested by the UE is used, and the UE receives the first message sent by the relay device.
  • a response message includes first indication information, where the first indication information is used to indicate that the relay device establishes a session successfully within the S-NSSAI.
  • the relay device if the relay device does not establish a session within the slice requested by the UE, the session of the relay device within the slice is established, and the DRB corresponding to the session of the relay device within the slice can be used for transmission. Signaling and/or data of the UE.
  • the present application further provides a session establishing apparatus, which can implement the session establishing method described in the third aspect.
  • the device may be a user equipment or a chip applied to the user equipment, and may be other devices capable of implementing the foregoing session establishment method, and the foregoing method may be implemented by software, hardware, or by executing corresponding software through hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the third aspect described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus may include: a transmitting module, a receiving module, and a processing module.
  • the sending module is configured to send a first message to the access network device, where the first session establishment request message and the S-NSSAI requested by the UE are used, and the receiving module is configured to receive the first reconfiguration request message sent by the access network device. And including the first session establishment response message and the DRB configuration information, where the DRB configuration information is information of the DRB corresponding to the S-NSSAI; and the processing module is configured to transmit signaling and/or data on the DRB corresponding to the DRB configuration information.
  • the sending module is further configured to: before sending the first message to the access network device, send a first request message to the relay device, where the S-NSSAI requested by the UE is used; the receiving module is further used to: The first response message sent by the relay device is received, where the first indication information is used to indicate that the relay device establishes the session successfully in the S-NSSAI.
  • the present application provides a method and apparatus for selecting a relay device.
  • the method may include: the user equipment acquires M first indication information, where each first indication information of the M first indication information is used to indicate a network slice that the UE allows to use, where M is a positive integer greater than or equal to 1; the UE receives the first message respectively sent by the L relay devices, where the first message of one relay device includes N second indication information, and each of the N second indication information The second indication information is used to indicate a network slice that the relay device is allowed to use, and L and N are respectively positive integers greater than or equal to 1; the UE selects any one according to the M first indication information and the L first messages.
  • a relay device is a target relay device, where the network slice indicated by the N second indication information of the first relay device includes at least one network slice indicated by the M first indication information.
  • the at least one relay device notifies the UE of the network slice allowed to be used by the relay device by using a message.
  • the UE selects a target relay device to establish a connection, and the network slice that the target relay device allows to use includes at least one network slice that the UE is allowed to use. Therefore, the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice by the relay device is improved.
  • the UE determines the relay device as the first relay. device. In this way, it can be ensured that the relay device accessed by the UE fully supports the network slice that the UE needs to use, and improves the success rate of the UE establishing the session through the relay device.
  • the first indication information and the second indication information are respectively a relay service code RSC.
  • the method for the UE to obtain the M first indication information includes: the UE is pre-configured with S S-NSSAIs, and the RSCs corresponding to the S S-NSSAIs, S is greater than or equal to M. a positive integer; the UE sends a first registration request message to the AMF entity, where the UE includes one or more S-NSSAIs that the UE requests to use; the UE receives the first registration response message sent by the AMF entity, including one or more allowed by the UE.
  • the S-NSSAI the UE queries the first information according to one or more S-NSSAIs that the UE is allowed to use, and acquires M first indication information.
  • the method for the UE to obtain the M first indication information includes: the UE sends a second registration request message to the AMF entity, where the UE includes one or more S-NSSAIs that are requested to be used; and the UE receives the AMF entity to send a second registration response message including one or more S-NSSAIs allowed by the UE and one-to-one RSC corresponding to one or more S-NSSAIs allowed by the UE; the UE is allowed to use one or more Ss according to the UE - NSSAI, and an RSC corresponding to one or more S-NSSAIs that the UE is allowed to use, obtain M first indication information.
  • the UE selects any one of the first relay devices as the target relay device according to the M first indication information and the L first messages, and establishes a connection with the target relay device.
  • the present application further provides a selection device for a relay device, which can implement the selection method of the relay device according to the fourth aspect.
  • the device may be a user equipment or a chip applied to the user equipment, and may be another device capable of implementing the selection method of the foregoing relay device, which may implement the foregoing method by software, hardware, or by executing corresponding software through hardware. .
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the fourth aspect described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus may include: an acquisition module, a receiving module, and a processing module.
  • the obtaining module is configured to obtain M pieces of first indication information, where each of the first pieces of the first indication information is used to indicate a network slice that is allowed to be used by the UE, where the M is greater than or equal to 1 a positive integer;
  • the receiving module is configured to receive a first message respectively sent by the L relay devices, where the first message of the one relay device includes N second indication information, where each of the N second indication information
  • the two indication information is used to indicate a network slice that the relay device is allowed to use, and L and N are positive integers greater than or equal to 1, respectively;
  • the processing module is configured to select any one according to the M first indication information and the L first messages.
  • the first relay device is a target relay device, where the network slice indicated by the N second indication information of the first relay device includes at least one network slice indicated by the M first indication information.
  • the first indication information and the second indication information are respectively RSC.
  • the UE is pre-configured with S S-NSSAIs and RSCs corresponding to S S-NSSAIs, where S is a positive integer greater than or equal to M; the device further includes a sending module, Sending a first registration request message to the AMF entity, where the one or more S-NSSAIs that the UE requests to use, and the receiving module is configured to receive the first registration response message sent by the AMF entity, including one or more allowed by the UE.
  • the S-NSSAI obtains the M first indications
  • the acquiring module includes: acquiring, by the acquiring module, the first information pre-configured by the UE by using one or more S-NSSAIs that are allowed to be used by the UE, and acquiring the M first indications. information.
  • the apparatus further includes a sending module, configured to send a second registration request message to the AMF entity, where the one or more S-NSSAIs requested by the UE are used, and the receiving module is configured to receive the AMF.
  • a second registration response message sent by the entity including one or more S-NSSAIs that the UE is allowed to use and one-to-one RSC corresponding to one or more S-NSSAIs that the UE is allowed to use;
  • the obtaining module is configured to be used according to the UE One or more S-NSSAIs, and an RSC corresponding to one or more S-NSSAIs that the UE is allowed to use, acquire M first indication information.
  • the processing module is configured to establish a connection with the target relay device after selecting any one of the first relay devices as the target relay device according to the M first indication information and the L first messages.
  • the present application provides a method and an apparatus for selecting a relay device.
  • the method may include: the L relay devices respectively obtain the respective N indication information, and the L relay devices respectively send the first message to the user equipment UE, and the first message of the relay device Include the N indication information, where the first message is used to instruct the UE to select any one of the L relay devices as the target relay device according to the M first indication information and the L first messages; L is a positive integer greater than or equal to 1; an indication information is used to indicate a network slice allowed to be used by the relay device, N is a positive integer greater than or equal to 1; a first indication information is used to indicate a network allowed to be used by the UE A slice, M is a positive integer greater than or equal to 1; the network slice indicated by the N indication information of the first relay device includes at least one network slice indicated by the M first indication information.
  • the at least one relay device notifies the UE of the network slice allowed to be used by the relay device by using a message.
  • the UE selects a target relay device to establish a connection, and the network slice that the target relay device allows to use includes at least one network slice that the UE is allowed to use. Therefore, the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice by the relay device is improved.
  • the first indication information and the second indication information are respectively RSC.
  • the L relay devices respectively obtain the respective N indication information, including: the relay device is pre-configured with the first information, including the S S-NSSAIs, and the S-NSSAIs.
  • S is a positive integer greater than or equal to the M; the relay device sends a first registration request message to the AMF entity, including one or more S-NSSAIs requested by the relay device; and the relay device receives the AMF a first registration response message sent by the entity, where the one or more S-NSSAIs allowed by the relay device are used; the relay device queries the first information according to one or more S-NSSAIs that the relay device allows to obtain N Instructions.
  • the L relay device respectively obtains the respective N indication information, including: the relay device sends a second registration request message to the AMF entity, where the one or more S- The NSSAI; the relay device receives a second registration response message sent by the AMF entity, where the one or more S-NSSAIs allowed by the relay device and one or more S-NSSAIs that are allowed to be used by the relay device are in one-to-one correspondence
  • the RSC acquires N pieces of indication information according to one or more S-NSSAIs that the relay device is allowed to use, and an RSC corresponding to one or more S-NSSAIs that the relay device allows.
  • the present application further provides a selection device for a relay device, which can implement the selection method of the relay device according to the fifth aspect.
  • the device may be a relay device or a chip applied to the relay device, and may be other devices capable of implementing the selection method of the foregoing relay device, which may be implemented by software, hardware, or by hardware. The above method.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the fifth aspect described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: an acquisition module and a transmission module.
  • the obtaining module is configured to obtain the N pieces of indication information, where the indication information is used to indicate a network slice that the relay device is allowed to use, and N is a positive integer greater than or equal to 1;
  • the sending module is configured to separately send to the user equipment UE
  • the first message includes N indication information, where the first message is used to instruct the UE to select any one of the L relay devices as the target relay device according to the M first indication information and the L first messages.
  • L is a positive integer greater than or equal to 1; a first indication information is used to indicate a network slice that the UE is allowed to use, M is a positive integer greater than or equal to 1; N indication information indications of the first relay device
  • the network slice includes at least one network slice indicated by the M first indication information.
  • the first indication information and the second indication information are respectively RSC.
  • the relay device is pre-configured with first information, including S S-NSSAIs, and RSCs corresponding to S S-NSSAIs, S is a positive integer greater than or equal to M;
  • the first registration request message is sent to the AMF entity, where the one or more S-NSSAIs are used by the relay device, and the receiving module is configured to receive the first registration response message sent by the AMF entity.
  • the method includes: the one or more S-NSSAIs that are allowed to be used by the relay device; and the acquiring module is configured to query the first information pre-configured by the relay device according to one or more S-NSSAIs that are allowed to be used by the relay device received by the receiving module, Get N indications.
  • the sending module is configured to send a second registration request message to the AMF entity, where the relay device requests one or more S-NSSAIs to be used; the device further includes a receiving module, and the receiving module is configured to receive
  • the second registration response message sent by the AMF entity includes one or more S-NSSAIs that the relay device allows to use and one-to-one RSC corresponding to one or more S-NSSAIs that the relay device allows to use; N pieces of indication information are acquired according to one or more S-NSSAIs that are allowed to be used by the relay device, and an RSC corresponding to one or more S-NSSAIs that the relay device allows.
  • the present application provides a method and an apparatus for selecting a relay device.
  • the method may include: the user equipment acquires M first indication information, where each first indication information of the M first indication information is used to indicate a network slice that the UE allows to use, where M is a positive integer greater than or equal to 1; the UE receives the first message sent by the first relay device, where the N second indication information is included, and each of the N second indication information is used in the indication Following a network slice allowed by the device, N is a positive integer greater than or equal to 1; when the network slice indicated by the N second indication information includes at least one network slice indicated by the M first indication information, the UE determines The first relay device is a target relay device.
  • the first relay device after the UE and the relay device respectively acquire their own allowed network slices, the first relay device notifies the UE of the network slice allowed to be used by the first relay device by using the first message. If the network slice allowed to be used by the first relay device includes at least one network slice allowed by the UE, the UE determines that the first relay device is the target relay device and establishes a connection therewith. In this way, the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice through the relay device is improved.
  • the UE determines the first relay device as the target. Relay device. In this way, it can be ensured that the relay device accessed by the UE fully supports the network slice that the UE needs to use, and improves the success rate of the UE establishing the session through the relay device.
  • the first indication information and the second indication information are respectively a relay service code RSC.
  • the UE is pre-configured with first information, including S S-NSSAIs, and RSCs corresponding one-to-one with S S-NSSAIs, S being a positive integer greater than or equal to the M.
  • first information including S S-NSSAIs, and RSCs corresponding one-to-one with S S-NSSAIs, S being a positive integer greater than or equal to the M.
  • the UE sends a first registration request message to the AMF entity, where the UE includes one or more S-NSSAIs that are requested to be used by the UE, and receives the first registration response message sent by the AMF entity, including the UE permission.
  • One or more S-NSSAIs used Thereafter, the UE acquires M first indication information according to one or more S-NSSAIs and first information that the UE is allowed to use.
  • the UE sends a second registration request message to the AMF entity, including one or more S-NSSAIs that the UE requests to use; the UE receives the second registration response message sent by the AMF entity, including the UE allowing use.
  • the UE after determining that the first relay device is the target relay device, the UE establishes a connection with the target relay device.
  • the present application further provides a selection device for a relay device, which can implement the selection method of the relay device according to the sixth aspect.
  • the device may be a user equipment or a chip applied to the user equipment, and may be another device capable of implementing the selection method of the foregoing relay device, which may implement the foregoing method by software, hardware, or by executing corresponding software through hardware. .
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the sixth aspect method described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device can include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus may include: an acquisition module, a receiving module, and a processing module.
  • the acquiring module is configured to obtain M first indication information, where each first indication information of the M first indication information is used to indicate a network slice that the UE is allowed to use, where M is a positive integer greater than or equal to 1;
  • the receiving module is configured to receive a first message sent by the first relay device, where the N second indication information is included, and each of the second second indication information is used to indicate a network that the relay device is allowed to use.
  • the processing module is configured to determine, in a case where the network slice indicated by the N second indication information includes at least one network slice indicated by the M first indication information, determine the first relay device Relay the device for the target.
  • each of the first indication information and the second indication information of the M first indication information is a relay service code RSC.
  • the UE is pre-configured with first information, including S S-NSSAIs, and RSCs corresponding to S S-NSSAIs, S being a positive integer greater than or equal to the M;
  • the method further includes a sending module, configured to send a first registration request message to the AMF entity, where the one or more S-NSSAIs that the UE requests to use, and the receiving module is further configured to receive the first registration response message sent by the AMF entity, including the UE.
  • the obtaining module obtains M pieces of first indication information, specifically: acquiring M according to one or more S-NSSAIs and configured first information that are allowed to be used by the UE received by the receiving module First indication information.
  • the apparatus further includes a sending module, configured to send a second registration request message to the AMF entity, where the one or more S-NSSAIs requested by the UE are used, and the receiving module is configured to receive the AMF.
  • a second registration response message sent by the entity including one or more S-NSSAIs that the UE is allowed to use and one-to-one RSC corresponding to one or more S-NSSAIs that the UE is allowed to use;
  • the obtaining module is specifically configured to be used according to the UE One or more S-NSSAIs, and an RSC corresponding to one or more S-NSSAIs that the UE is allowed to use, acquire M first indication information.
  • the processing module is further configured to establish a connection with the target relay device after determining that the first relay device is the target relay device.
  • the present application provides a method and apparatus for selecting a relay device.
  • the method may include: the first relay device acquires N indication information, and the first relay device sends a first message to the user equipment UE, where the first message includes N indication information, Instructing the UE to determine, according to the M first indication information and the N indication information, whether the first relay device is a target relay device; wherein, the indication information is used to indicate a network slice that the first relay device allows to use, where N is a positive integer greater than or equal to 1; a first indication information is used to indicate a network slice allowed to be used by the UE, and M is a positive integer greater than or equal to 1; the network slice indicated by the N indication information of the target relay device includes at least one M network slices indicated by the first indication information.
  • the first relay device after the UE and the relay device respectively acquire their own allowed network slices, the first relay device notifies the UE of the network slice allowed to be used by the first relay device by using the first message. If the network slice allowed to be used by the first relay device includes at least one network slice allowed by the UE, the UE determines that the first relay device is the target relay device and establishes a connection therewith. In this way, the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice through the relay device is improved.
  • the first indication information and the second indication information are respectively RSC.
  • the first relay device is pre-configured with first information, including S S-NSSAIs, and RSCs corresponding to S S-NSSAIs, S being greater than or equal to the positive of the Ms.
  • the first relay device sends a first registration request message to the AMF entity, where the first relay device requests to use one or more S-NSSAIs; the first relay device receives the first registration response message sent by the AMF entity.
  • the first relay device queries the first information according to one or more S-NSSAIs that the first relay device allows to obtain N indication information. .
  • the first relay device sends a second registration request message to the AMF entity, where the first relay device requests to use one or more S-NSSAIs; the first relay device receives the AMF entity to send Second registration response message, including one or more S-NSSAIs allowed by the first relay device and RSCs corresponding to one or more S-NSSAIs permitted by the relay device; the first relay device N pieces of indication information are acquired according to one or more S-NSSAIs that are allowed to be used by the first relay device, and RSCs that correspond one-to-one with one or more S-NSSAIs that the first relay device allows.
  • the present application further provides a selection device for a relay device, which can implement the selection method of the relay device according to the seventh aspect.
  • the device may be a relay device or a chip applied to the relay device, and may be other devices capable of implementing the selection method of the foregoing relay device, which may be implemented by software, hardware, or by hardware. The above method.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the seventh aspect described above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: an acquisition module and a transmission module.
  • the acquiring module is used for N indication information, and the indication information is used to indicate a network slice that is allowed to be used by the first relay device, where N is a positive integer greater than or equal to 1;
  • the sending module is configured to send the first to the user equipment UE.
  • a message where the N indicator information is used to indicate that the UE determines, according to the M first indication information and the N indication information, whether the first relay device is a target relay device, where a first indication information is used to indicate A network slice allowed by the UE, M is a positive integer greater than or equal to 1;
  • the network slice indicated by the N indication information of the target relay device includes at least one network slice indicated by the M first indication information.
  • the first indication information and the second indication information are respectively RSC.
  • the first relay device is pre-configured with first information, including S S-NSSAIs, and RSCs corresponding to S S-NSSAIs, S being a positive integer greater than or equal to M;
  • the sending module is configured to send a first registration request message to the AMF entity, where the first relay device requests to use one or more S-NSSAIs;
  • the device further includes a receiving module, where the receiving module is configured to receive the first sent by the AMF entity a registration response message, including one or more S-NSSAIs that the first relay device is allowed to use;
  • the obtaining module is specifically configured to query the first one or more S-NSSAIs that are allowed to be used by the first relay device received by the receiving module
  • the first information pre-configured by the relay device acquires N indication information.
  • the sending module is configured to send a second registration request message to the AMF entity, where the first relay device requests to use one or more S-NSSAIs; the device further includes a receiving module, and the receiving module uses Receiving a second registration response message sent by the AMF entity, where the one or more S-NSSAIs that the first relay device allows to use and one-to-one correspondence with one or more S-NSSAIs that the first relay device is allowed to use are included.
  • the obtaining module is specifically configured to acquire N according to one or more S-NSSAIs that are allowed to be used by the first relay device, and RSCs that are one-to-one corresponding to one or more S-NSSAIs that the first relay device allows to use. Instructions.
  • the present application provides a registration method and apparatus.
  • the method may include: the relay device sends a registration request message to the AMF entity, where the first indication information is used to indicate that the AMF entity updates the first network slice information, A network slice information is used to indicate one or more S-NSSAIs that the relay device is allowed to use; the relay device receives a registration response message sent by the AMF entity, including the first network slice information.
  • the relay device instructs the AMF entity to update one or more S-NSSAIs that the relay device is allowed to use, and the AMF entity updates one of the allowed relay devices according to one or more S-NSSAIs that the UE is allowed to use.
  • the UE can establish a session in the network slice that the relay device is allowed to use, so that the success rate of the UE establishing a session within the network slice through the relay device can be improved.
  • the relay device before the relay device sends the registration request message to the AMF entity, the relay device establishes a connection with the user equipment UE; the relay device receives the first information sent by the UE, where the first information is the UE identifier or the first Two network slice information, wherein the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use.
  • the registration request message further includes the second network slice information.
  • the UE directly informs the relay device of one or more S-NSSAIs that the UE is allowed to use, and the relay device carries one or more S-NSSAIs that the UE is allowed to use to the AMF entity in the registration request message.
  • the AMF entity may directly update one or more S-NSSAIs that the relay device is allowed to use based on one or more S-NSSAIs allowed by the UE in the message.
  • the relay device after receiving the registration response message sent by the AMF entity, the relay device sends a first message to the UE, where the first network slice information is included. In this way, the relay device notifies the UE of one or more S-NSSAIs that the updated relay device is allowed to use, and the UE can establish a session in the slice that the relay device allows.
  • the present application also provides a registration device, which can implement the registration method described in the eighth aspect.
  • the device may be a relay device or a chip applied to the relay device, and may be other devices capable of implementing the above registration method, which may implement the above method by software, hardware, or by executing corresponding software through hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the above eighth aspect.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: a transmitting module and a receiving module.
  • the sending module is configured to send a registration request message to the AMF entity, where the first indication information is used to indicate that the AMF entity updates the first network slice information, where the first network slice information is used to indicate that the relay device is allowed to use.
  • One or more S-NSSAIs the receiving module is configured to receive a registration response message sent by the AMF entity, where the registration response message includes the first network slice information.
  • the device may further include a processing module, configured to establish a connection with the user equipment UE before the sending module sends the registration request message to the AMF entity, where the receiving module is further configured to receive the first information sent by the UE,
  • the first information is a UE identity or second network slice information, where the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use.
  • the registration request message further includes the second network slice information.
  • the sending module is further configured to: after the receiving module receives the registration response message sent by the AMF entity, send the first message to the UE, where the first network slice information is included.
  • the present application provides a registration method and apparatus.
  • the method may include: the AMF entity receiving the registration request message sent by the relay device, where the first indication information is used to indicate that the AMF entity updates the first network slice information, first The network slice information is used to indicate one or more S-NSSAIs that the relay device is allowed to use; the AMF entity sends a registration response message to the relay device, including the first network slice information.
  • the relay device instructs the AMF entity to update one or more S-NSSAIs that the relay device is allowed to use, and the AMF entity updates one of the allowed relay devices according to one or more S-NSSAIs that the UE is allowed to use.
  • the UE can establish a session in the network slice that the relay device is allowed to use, so that the success rate of the UE establishing a session within the network slice through the relay device can be improved.
  • the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use; the AMF entity subscribes to one or more S-NSSAIs according to one or more S-NSSAIs and relay devices that the UE is allowed to use.
  • the intersection of the first network slice information is updated.
  • the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use; the AMF entity sends a first request message to the NSSF entity, where the first request message is used to request the NSSF entity to update the first network slice information. And including, by the UE, one or more S-NSSAIs, the relay device subscribes to use one or more S-NSSAIs, and the second indication information, where the second indication information is used to indicate that the NSSF entity updates the first network slice information; The entity receives the first response message sent by the NSSF entity, where the first network slice information is included.
  • the registration request message sent by the relay device includes the UE identifier, and the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use, including: the AMF entity sends the second request message to the first AMF entity. And including the UE identifier and the third indication information, where the third indication information is used to indicate that the first AMF entity acquires one or more S-NSSAIs that the UE is allowed to use, and the AMF entity receives the second response message sent by the first AMF entity, where Includes one or more S-NSSAIs that the UE is allowed to use.
  • the registration request message carries less content, and only needs to include the UE identifier, and the AMF entity needs to acquire one or more S-NSSAIs that the UE is allowed to use according to the UE identifier.
  • the registration request message sent by the relay device includes second network slice information, where the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use, and the AMF entity obtains the UE permission.
  • the one or more S-NSSAIs used include: the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use according to the second network slice information.
  • the AMF entity may directly obtain one or more S-NSSAIs that the UE is allowed to use from the registration request message, and the registration request message carries more content, and the registration request message is larger.
  • the present application also provides a registration device that can implement the registration method described in the ninth aspect.
  • the device may be an AMF entity or a chip applied to the AMF entity, and may be other devices capable of implementing the above registration method, which may be implemented by software, hardware, or by executing corresponding software by hardware.
  • the apparatus can include a processor and a memory.
  • the processor is configured to support the apparatus to perform the corresponding functions of the method of the ninth aspect above.
  • a memory is coupled to the processor that holds the program instructions and data necessary for the device.
  • the device may also include a communication interface for supporting communication between the device and other devices.
  • the communication interface can be a transceiver or a transceiver circuit.
  • the apparatus can include: a transmitting module and a receiving module.
  • the receiving module is configured to receive a registration request message sent by the relay device, where the registration request message includes first indication information, where the first indication information is used to indicate that the AMF entity updates the first network slice information, where the first network slice information is used in the indication.
  • One or more S-NSSAIs that are allowed to be used by the device;
  • the sending module is configured to send a registration response message to the relay device, including the first network slice information.
  • the apparatus may further include an obtaining module for acquiring one or more S-NSSAIs allowed by the user equipment UE, and a processing module for using one or more allowed by the UE.
  • the S-NSSAI and the relay device subscribe to update the first network slice information using the intersection of one or more S-NSSAIs.
  • the apparatus may further include an obtaining module, where the acquiring module is configured to acquire one or more S-NSSAIs that are allowed to be used by the user equipment UE, and the sending module is further configured to send the first request message to the NSSF entity.
  • the first request message is used to request the NSSF entity to update the first network slice information, where the one or more S-NSSAIs that the UE allows to use, the relay device to subscribe to use one or more S-NSSAIs, and the second indication information, and the second
  • the indication information is used to indicate that the NSSF entity updates the first network slice information
  • the receiving module is further configured to receive the first response message sent by the NSSF entity, where the first network slice information is included.
  • the registration request message includes a UE identifier
  • the sending module is further configured to send a second request message to the first AMF entity, where the UE identifier and the third indication information are used, where the third indication information is used to indicate An AMF entity acquires one or more S-NSSAIs that the UE is allowed to use; the receiving module is further configured to receive a second response message sent by the first AMF entity, including one or more S-NSSAIs that the UE is allowed to use.
  • the registration request message includes second network slice information, where the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use, and the obtaining module is specifically configured to use the second network slice information. Obtain one or more S-NSSAIs that the UE is allowed to use.
  • the application also provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method of any of the above aspects.
  • the application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the above aspects.
  • the present application also provides a chip system including a processor, and a memory, for implementing the method described in any of the above aspects.
  • the present application provides a communication system comprising the apparatus for implementing the method of the first aspect, the apparatus for implementing the method of the second aspect, the fifth aspect, the seventh aspect or the eighth aspect, The apparatus for implementing the method of the third aspect, the fourth aspect or the sixth aspect, and the apparatus for implementing the method of the ninth aspect.
  • FIG. 1 is a schematic diagram of a system architecture applicable to a technical solution provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of hardware of a communication device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram 1 of a session establishment method according to an embodiment of the present application.
  • FIG. 4 is a second schematic diagram of a session establishment method according to an embodiment of the present disclosure.
  • FIG. 5 is a first schematic diagram of a method for selecting a relay device according to an embodiment of the present disclosure
  • FIG. 6 is a second schematic diagram of a method for selecting a relay device according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a registration method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram 1 of a device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram 2 of a device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram 3 of a device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram 4 of a device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram 5 of a device according to an embodiment of the present application.
  • the technical solution provided by the present application can be applied to various communication systems that divide network slices, for example, an existing communication system based on network slice, 5G NR system, future evolution system or multiple communication fusion systems, and the like.
  • M2M Machine to Machine
  • eMBB enhanced mobile broadband
  • URLLC Ultra-high reliability and ultra-low latency Communication
  • mMTC massive Machine Type Communication
  • the technical solution provided by the embodiment of the present application can also be applied to a scenario between a UE and a UE in
  • the communication system may include a core network, an access network device, a relay device, and a UE.
  • the function of the core network is mainly to provide user connections, management of users, and completion of services, as an interface provided by the bearer network to the external network. Including user mobility management, call management, routing management, security management, and more.
  • devices in the core network may include an Access and Mobility Management Function (AMF) entity, a Session Management Function (SMF) entity, and Unified Data Management (Unified Data Management).
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UDM User Data Management
  • NSF Network Slice Selection Function
  • the AMF entity is used to provide mobility management, access authentication, security anchor function and security context management function for the UE; the SMF entity is used for session management, user plane selection and control, and downlink data notification; the UDM entity is used for Manage subscription information and perform user authentication; NSSF entities are used to implement network slice selection and management functions.
  • the core network may also include other devices and functional entities, or other functional entities may be used instead of the above functional entities to provide the foregoing functions, and the number of functional entities may also be configured according to specific needs.
  • the core network may also be the future.
  • the device and the system for providing the foregoing functions in the evolved system or the multiple communication and convergence systems are not limited in this embodiment of the present application.
  • the access network device is used to provide access services for the UE.
  • the access network device may be a device of a Radio Access Network (RAN), such as a base station.
  • the base station may include various forms of base stations, such as macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like.
  • the base station device corresponds to a service coverage area, and the UE entering the area can communicate with the base station device by using a wireless signal, thereby receiving the wireless access service provided by the base station device.
  • the access network device can also be a wired broadband access network Wireline.
  • the access network device may also be any device that can communicate with the UE.
  • the access network device may be a relay station or an access point.
  • the access network device may be a Global System for Mobile communication (GSM) or a Network Division Transceiver Station (BTS) in a Code Division Multiple Access (CDMA) network, or It is an NB (NodeB) in Wideband Code Division Multiple Access (WCDMA), and may also be an eNB or an eNodeB (evolutional NodeB) in LTE.
  • the access network device may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario.
  • the access network device may also be a network device in a 5G NR system network, such as a TRansmission Point (TRP), or a network device in a future evolved PLMN network; or may be a wearable device or an in-vehicle device.
  • GSM Global System for Mobile communication
  • BTS Network Division Transceiver Station
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • eNB eNodeB
  • eNodeB evolutional NodeB
  • the relay device is used to provide the UE with the function of accessing the access network device.
  • the relay device may be a CPE or an AP of the wired broadband access network, and provides a WIFI connection or a D2D connection access mode for the UE.
  • the relay device may also be a relay node or a relay UE in the relay technology, and perform one or more forwarding of the wireless signal of the access network device to provide a relay service for the remote UE to connect to the access network.
  • the UE may access the access network device through the relay device, or directly access the access network device.
  • the UE may be an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a terminal, a wireless communication device, a UE proxy, or a UE device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • FIG. 1 is for example only and is not intended to limit the technical solutions of the present application. It should be understood by those skilled in the art that in a specific implementation process, other devices may be included in the system architecture, and the number of network devices and UEs may also be configured according to specific needs.
  • the UE, the relay device, or the device in the core network in FIG. 1 may be implemented by one physical device, or may be implemented by multiple physical devices, or may be a logical functional module in a physical device.
  • the application examples are not specifically limited thereto.
  • FIG. 2 is a schematic diagram showing the hardware structure of a communication device according to an embodiment of the present application.
  • the communication device 200 includes at least one processor 201, a communication line 202, a memory 203, and at least one communication interface 204.
  • the processor 201 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the execution of the program of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication line 202 can include a path for communicating information between the components described above.
  • the communication interface 204 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 203 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • Memory 203 may be present independently and coupled to processor 201 via communication line 202. The memory 203 can also be integrated with the processor 201.
  • the memory 203 is used to store computer execution instructions for executing the solution of the present application, and is controlled by the processor 201 for execution.
  • the processor 201 is configured to execute the computer execution instructions stored in the memory 203, thereby implementing the session establishment method, the selection method of the relay device, and the registration method provided by the following embodiments of the present application.
  • the computer-executed instructions in the embodiment of the present application may also be referred to as an application code, which is not specifically limited in this embodiment of the present application.
  • processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • communication device 200 can include multiple processors, such as processor 201 and processor 207 in FIG. Each of these processors can be a single-CPU processor or a multi-core processor.
  • processors herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • the communication device 200 can also include an output device 205 and an input device 206.
  • Output device 205 is in communication with processor 201 and can display information in a variety of ways.
  • the output device 205 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait.
  • Input device 206 is in communication with processor 201 and can receive user input in a variety of ways.
  • input device 206 can be a mouse, keyboard, touch screen device or sensing device, and the like.
  • the communication device 200 described above may be a general purpose device or a dedicated device.
  • the communication device 200 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or the like in FIG. device.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 200.
  • 5G networks will be oriented to different application scenarios, such as ultra-high definition video, virtual reality, large-scale Internet of Things, car networking, etc., different application scenarios for network mobility, security, latency, reliability, and even accounting
  • the requirements of the fee method are different. Therefore, the physical network needs to be divided into multiple virtual networks, and each virtual network faces different application scenarios. Virtual networks are logically independent and do not affect each other. Different sessions of one user equipment are established in different network slices, and different network sliced sessions need to use different network resources.
  • S-NSSAI is used to record the auxiliary information of the network slice, and an S-NSSAI identifies a network slice.
  • the DRB is a data bearer between the UE and the access network device. If the UE accesses the access network device through the relay device, the uplink transmission direction of the UE data is: UE->relay device->access network device, and the downlink transmission direction is the access network device->relay device- >UE.
  • the data transmission between the UE and the access network device requires the use of a DRB belonging to the relay device between the relay device and the access network device.
  • the term "plurality” as used herein refers to two or more.
  • the terms “first” and “second” are used herein to distinguish different objects, rather than to describe a particular order of the objects.
  • the first registration request message and the second registration request message are only for distinguishing different registration request messages, and are not limited in their order.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the words “exemplary” or “such as” are used to mean an example, illustration, or illustration. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words “exemplary” or “such as” is intended to present the concepts in a particular manner.
  • the embodiment of the present application provides a session establishment method, which can be applied to the communication system shown in FIG. 1.
  • the UE can establish a session in one network slice through the relay device, and the UE and the relay device share the DRB of the relay device.
  • the method may include S201-S210:
  • the UE establishes a connection with the relay device.
  • the UE and the relay device establish a Wireless Fidelity (WI-FI) connection or a D2D connection.
  • WI-FI Wireless Fidelity
  • the UE sends a first message to the access network device.
  • the UE needs to establish a session within one slice, and then initiates a session establishment process.
  • the UE sends a first message to the access network device, where the first message includes a first session establishment request message and an S-NSSAI requested by the UE.
  • the first message may be a Radio Resource Control (RRC) message sent by the UE to the access network device, or may be a Non-Acess Stratum (NAS) message.
  • RRC Radio Resource Control
  • NAS Non-Acess Stratum
  • step S203 The access network device receives the first message sent by the UE. If the relay device that establishes the connection with the UE does not have a corresponding DRB in the S-NSSAI that the UE requests to use, step S204 is performed, and if yes, step S207 is performed.
  • the access network device forwards the first session establishment request message and the S-NSSAI requested by the UE to the SMF entity through the AMF entity.
  • the SMF entity establishes a session for the UE in the network slice corresponding to the S-NSSAI, and sends a first session establishment response message and the S-NSSAI to the access network device by using the AMF entity.
  • the access network device determines whether the corresponding DRB exists in the S-NSSAI requested by the UE to be used by the relay device that establishes the connection with the UE. If not, step S204 is performed, and if yes, step S207 is performed.
  • the access network device sends a third reconfiguration request message to the relay device.
  • the third reconfiguration request message may be an RRC Connection Reconfiguration Request message.
  • the third reconfiguration request message is used to instruct the relay device to establish a DRB corresponding to the S-NSSAI that the UE requests to use.
  • the relay device receives a third reconfiguration request message sent by the access network device.
  • the relay device After receiving the third reconfiguration request message sent by the access network device, the relay device establishes the DRB corresponding to the S-NSSAI that the UE requests to use.
  • the relay device sends a third reconfiguration response message to the access network device.
  • the relay device sends a third reconfiguration response message to the access network device.
  • the third reconfiguration response message may be an RRC connection reconfiguration response message.
  • the S-NSSAI and the DRB configuration information corresponding to the S-NSSAI are included. Thereafter, step S207 is performed.
  • the access network device sends a first reconfiguration request message to the UE.
  • the first reconfiguration request message may be an RRC Connection Reconfiguration Request message.
  • the first reconfiguration request message includes a first session establishment response message and DRB configuration information.
  • the DRB configuration information is the DRB configuration information corresponding to the S-NSSAI requested by the UE.
  • the UE receives a first reconfiguration request message sent by the access network device.
  • the UE after receiving the first reconfiguration request message sent by the access network device, the UE obtains the DRB configuration information corresponding to the S-NSSAI that is requested to be used, and may transmit signaling and the DRB corresponding to the obtained DRB configuration information. / or data.
  • the access network device sends a second reconfiguration request message to the relay device.
  • the second reconfiguration request message may be an RRC Connection Reconfiguration Request message.
  • the second reconfiguration request message includes DRB configuration information and a UE identity of the UE.
  • the DRB configuration information is the DRB configuration information corresponding to the S-NSSAI requested by the UE.
  • the relay device receives a reconfiguration request message sent by the access network device.
  • the reconfiguration request message received by the relay device is a second reconfiguration request message sent by the access network device to the relay device.
  • the relay device after receiving the second reconfiguration request message sent by the access network device, the relay device obtains the DRB configuration information and the UE identifier of the UE, and may transmit the signaling of the UE on the DRB corresponding to the DRB configuration information. / or data.
  • the access network device may first send the first reconfiguration request message to the UE, and then send the second reconfiguration request message to the relay device; or may send the second reconfiguration to the relay device first.
  • the request message is sent to the UE, and the first reconfiguration request message is sent to the UE, and the second reconfiguration request message is sent to the relay device.
  • This application does not limit the order of S207 and S209.
  • the UE when the UE is connected to the relay device, the UE requests to establish a session in one network slice, and the UE needs to use the DRB between the relay device and the access network device. If the relay device does not have a corresponding DRB in the network slice, the DRB corresponding to the network slice is established.
  • the access network device selects the relay device for the UE, and the DRB in the network slice requested by the UE transmits signaling and/or data for the UE. Thereby, the UE establishes a session in a network slice through the relay device.
  • the embodiment of the present application further provides a session establishment method, which can be applied to the communication system shown in FIG. 1.
  • the UE may be configured to establish a session in a network slice by using the relay device, and the UE shares the DRB corresponding to the session of the relay device in the slice.
  • the method may include S301-S315:
  • the UE establishes a connection with the relay device.
  • the UE and the relay device establish a Wireless Fidelity (WI-FI) connection or a D2D connection.
  • WI-FI Wireless Fidelity
  • the UE sends a first request message to the relay device.
  • the UE needs to establish a session within one slice, and then initiates a session establishment process.
  • the UE sends a first request message to the relay device, where the S-NSSAI requested by the UE is used, and the first request message is used to notify the relay device UE to request to establish a session in the network slice indicated by the S-NSSAI.
  • the first request message may be a new session request message.
  • step S303 The relay device receives the first request message sent by the UE. If the relay device does not establish a session within the network slice requested by the UE, step S304 is performed, and if the session has been established, step S308 is performed.
  • the relay device After receiving the first request message sent by the UE, the relay device checks whether the session has been established in the network slice that the UE requests to use, and if the session is not established, step S304 is performed, if the session has been established, Step S308 is performed.
  • the relay device sends a second message to the access network device.
  • the relay device initiates a process of establishing a session in a network slice that the UE requests to use.
  • the relay device sends a second message to the access network device, where the session establishment request message and the S-NSSAI requested by the UE are used.
  • the second message may be an RRC message sent by the relay device to the access network device.
  • the access network device receives the second message sent by the relay device.
  • the access network device forwards the session establishment request message and the S-NSSAI requested by the UE to the SMF entity through the AMF entity.
  • the SMF entity establishes a session for the relay device in the network slice corresponding to the S-NSSAI, and sends a session establishment response message and the S-NSSAI to the access network device through the AMF entity.
  • the access network device sends a second session setup response message to the relay device.
  • the access network device sends a fourth reconfiguration request message to the relay device.
  • the access network device sends a fourth reconfiguration request message to the relay device, where the second session setup response message is included.
  • the fourth reconfiguration request message may be an RRC connection reconfiguration request message sent by the access network device to the relay device.
  • the relay device receives a fourth reconfiguration request message sent by the access network device.
  • the relay device after receiving the fourth reconfiguration request message sent by the access network device, the relay device obtains the second session establishment response message. It is determined that the relay device successfully establishes a session within the S-NSSAI requested by the UE.
  • the relay device sends a first response message to the UE.
  • the relay device determines to send the first response message to the UE after the session is successfully established in the S-NSSAI that the UE requests to use, and includes the first indication information.
  • the first indication information is used to indicate whether the relay device successfully establishes the session in the S-NSSAI requested by the UE.
  • the first response message may be a new session response message.
  • the UE receives a first response message sent by the relay device. If it is determined that the relay device successfully establishes the session within the S-NSSAI requested by the UE, step 310 is performed.
  • the UE sends a first message to the access network device.
  • the first message includes a first session establishment request message and an S-NSSAI requested by the UE.
  • the first message may be an RRC message sent by the UE to the access network device.
  • the access network device receives the first message sent by the UE.
  • the access network device forwards the first session establishment request message and the S-NSSAI requested by the UE to the SMF entity through the AMF entity.
  • the SMF entity establishes a session for the UE in the network slice corresponding to the S-NSSAI, and sends a first session establishment response message and the S-NSSAI to the access network device by using the AMF entity.
  • the access network device sends a first reconfiguration request message to the UE.
  • the access network device After receiving the first session setup response message, the access network device sends a first reconfiguration request message to the UE.
  • the first reconfiguration request message may be an RRC Connection Reconfiguration Request message.
  • the first reconfiguration request message includes a first session establishment response message and DRB configuration information.
  • the DRB configuration information is the DRB configuration information corresponding to the S-NSSAI that the UE requests to use, for example, may be the configuration information of the DRB corresponding to the session established by the relay device in the slice in S304-S307.
  • the UE receives a first reconfiguration request message sent by the access network device.
  • the UE after receiving the first reconfiguration request message sent by the access network device, the UE obtains the DRB configuration information corresponding to the S-NSSAI that is requested to be used, and may transmit signaling and the DRB corresponding to the obtained DRB configuration information. / or data.
  • the access network device sends a second reconfiguration request message to the relay device.
  • the second reconfiguration request message may be an RRC Connection Reconfiguration Request message.
  • the second reconfiguration request message includes DRB configuration information and a UE identity of the UE.
  • the DRB configuration information is the DRB configuration information corresponding to the S-NSSAI requested by the UE.
  • the relay device receives a reconfiguration request message sent by the access network device.
  • the reconfiguration request message received by the relay device is a second reconfiguration request message sent by the access network device to the relay device.
  • the relay device after receiving the second reconfiguration request message sent by the access network device, the relay device obtains the DRB configuration information and the UE identifier of the UE, and may transmit the signaling of the UE on the DRB corresponding to the DRB configuration information. / or data.
  • the access network device may first send the first reconfiguration request message to the UE, and then send the second reconfiguration request message to the relay device; or may send the second reconfiguration to the relay device first.
  • the request message is sent to the UE, and the first reconfiguration request message is sent to the UE, and the second reconfiguration request message is sent to the relay device.
  • This application does not limit the order of S312 and S314.
  • the UE when the UE is connected to the relay device, the UE requests to establish a session in one network slice, and the UE needs to use the DRB between the relay device and the access network device. If the relay device does not establish a session within the network slice, a session is established on the network slice.
  • the access network device selects the relay device for the UE, and the DRB in the network slice requested by the UE, that is, the DRB corresponding to the session in the network slice of the relay device, transmits signaling and/or data for the UE. Thereby, the UE establishes a session in a network slice through the relay device.
  • the embodiment of the present application further provides a method for selecting a relay device, which is applied to the communication system shown in FIG. 1.
  • the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice through the relay device is improved.
  • a method for selecting a relay device provided by an embodiment of the present application may include S401-S405:
  • the UE acquires M first indication information.
  • the UE acquires a network slice that the UE allows to use.
  • the UE may obtain M first indication information.
  • Each of the M first indication information is used to indicate a network slice that the UE is allowed to use, and M is a positive integer greater than or equal to 1.
  • the UE obtains M network slices that are allowed to be used.
  • a first indication information may also be used to indicate multiple network slices that the UE allows to use. This embodiment of the present application does not limit this.
  • the first indication information is a Relay Service Code (RSC).
  • RSC Relay Service Code
  • the acquiring, by the UE, the first indication information may include the following two manners.
  • the method may include S401a-S401d:
  • the UE sends a first registration request message to the AMF entity.
  • the first registration request message includes one or more S-NSSAIs that the UE requests to use.
  • the UE is pre-configured with the first information.
  • the first information includes S S-NSSAIs and RSCs corresponding to the S SNSSSAIs; wherein S is a positive integer greater than or equal to M.
  • the first information may include the content as shown in Table 1:
  • the UE selects one or more S-NSSAIs that are requested by the UE from the configured S SNSSAIs as needed.
  • the S-NSSAI requested by the UE includes S-NSSAI-1, S-NSSAI-2, S-NSSAI-3, and S-NSSAI-4.
  • the AMF entity receives the first registration request message.
  • the AMF entity obtains one or more S-NSSAIs that the UE requests to use from the first registration request message, and requests the UDM entity to sign the contract.
  • the UDM entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then notifies the AMF entity that the UE is subscribed to use one or more S-NSSAIs.
  • the AMF entity obtains one or more S-NSSAIs used by the UE for subscription from the UDM entity.
  • the AMF entity sends one or more S-NSSAIs used by the UE and one or more S-NSSAIs used by the UE to the NSSF entity, and the NSSF entity uses one or more S-NSSAIs according to the UE request and One or more S-NSSAIs used by the UE to subscribe determine one or more S-NSSAIs that the UE is allowed to use.
  • the NSSF entity determines the intersection of one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription as one or more S-NSSAIs that the UE is allowed to use.
  • the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4.
  • the AMF entity obtains one or more S-NSSAIs that the UE is allowed to use from the NSSF entity.
  • the AMF entity may also determine one or more S-NSSAIs that the UE is allowed to use according to one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription.
  • the AMF entity sends a first registration response message to the UE.
  • the AMF entity sends a first registration response message to the UE, including one or more S-NSSAIs that the UE is allowed to use.
  • the UE receives the first registration response message.
  • the UE acquires one or more S-NSSAIs that the UE is allowed to use from the first registration response message.
  • the UE queries the first information according to one or more S-NSSAIs that the UE is allowed to use, and acquires M first indication information.
  • the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4
  • the first information includes contents as shown in Table 1
  • the RSCs corresponding to NSSAI-1, S-NSSAI-3, and S-NSSAI-4 are 1, 3, and 4, respectively, that is, 3 RSCs are acquired.
  • the method may include S4011-S4014:
  • S4011 The UE sends a second registration request message to the AMF entity.
  • the second registration request message includes one or more S-NSSAIs that the UE requests to use.
  • the UE is pre-configured with the second information.
  • the second information includes S S-NSSAIs, where S is a positive integer greater than or equal to M.
  • the second information may include the content as shown in Table 2:
  • the UE selects one or more S-NSSAIs that are requested by the UE from the configured S SNSSAIs as needed.
  • the S-NSSAI requested by the UE includes S-NSSAI-1, S-NSSAI-2, S-NSSAI-3, and S-NSSAI-4.
  • the AMF entity receives the second registration request message.
  • the AMF entity obtains one or more S-NSSAIs that the UE requests to use from the second registration request message, and acquires one or more S-NSSAIs that the UE is allowed to use according to one or more S-NSSAIs used by the UE request, and One or more S-NSSAIs that the UE allows to use one-to-one RSC.
  • the manner in which the AMF entity obtains the S-NSSAI allowed by the UE, and the RSC corresponding to one or more S-NSSAIs that the UE is allowed to use may include:
  • the UDM entity determines the RSC.
  • the AMF entity requests a contract from the UDM entity.
  • the UDM entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then notifies the AMF entity that the UE uses one or more S-NSSAIs for subscription and one or more S-NSSAIs that are used by the UE to subscribe to the RSC.
  • S-NSSAIs used by the UE for contracting and one-to-one RSCs corresponding to one or more S-NSSAIs used by the UE for contracting are shown in Table 3.
  • the AMF entity sends one or more S-NSSAIs used by the UE and one or more S-NSSAIs used by the UE to the NSSF entity, and the NSSF entity uses one or more S-NSSAIs used by the UE and the UE to use the subscription.
  • One or more S-NSSAIs determine one or more S-NSSAIs that the UE is allowed to use.
  • the NSSF entity determines the intersection of one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription as one or more S-NSSAIs that the UE is allowed to use.
  • the NSSF entity determines that the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4.
  • the NSSF entity sends one or more S-NSSAIs that the UE is allowed to use to the AMF entity.
  • the AMF entity obtains one or more S-NSSAIs that are allowed to be used by the UE, and obtains one or more S-NSSAIs that are used by the UE for subscription and RSCs that are one-to-one corresponding to one or more S-NSSAIs that the UE subscribes to.
  • the RSC corresponding to one or more S-NSSAIs that the UE is allowed to use.
  • the UE queries the RSC corresponding to S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4 in Table 3, and obtains S-NSSAI-1, S-NSSAI-3, and S-NSSAI-
  • the corresponding RSCs are 1, 3, and 4, respectively.
  • the NSSF entity determines the RSC.
  • the AMF entity requests a contract from the UDM entity.
  • the UDM entity notifies the AMF entity that the UE is contracted to use one or more S-NSSAIs.
  • the AMF entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then sends one or more S-NSSAIs requested by the UE, one or more S-NSSAIs used by the UE for subscription, and RSC request indication information to the NSSF entity. .
  • the NSSF entity determines one or more S-NSSAIs that the UE is allowed to use according to one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE to subscribe, and determines one or more permitted to be used by the UE.
  • One S-NSSAI one-to-one RSC.
  • the NSSF entity determines the intersection of one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription as one or more S-NSSAIs that the UE is allowed to use.
  • the NSSF entity determines that the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4, and determines S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4.
  • the corresponding RSCs are 1, 3, and 4, respectively.
  • the NSSF entity sends one or more S-NSSAIs that the UE is allowed to use and an RSC that is one-to-one corresponding to one or more S-NSSAIs that the UE is allowed to use to the AMF entity.
  • the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use and RSCs that correspond one-to-one with one or more S-NSSAIs that the UE is allowed to use.
  • the AMF entity determines the RSC.
  • the AMF entity requests a contract from the UDM entity.
  • the UDM entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then notifies the AMF entity that the UE is subscribed to use one or more S-NSSAIs.
  • the AMF entity sends one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE to the NSSF entity.
  • the NSSF entity determines one or more S-NSSAIs that the UE is allowed to use based on one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE to subscribe. For example, the NSSF entity determines the intersection of one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription as one or more S-NSSAIs that the UE is allowed to use. For example, the NSSF entity determines that the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4.
  • the NSSF entity sends one or more S-NSSAIs that the UE is allowed to use to the AMF entity.
  • the AMF entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then determines the RSC corresponding to one or more S-NSSAIs that the UE is allowed to use. Exemplarily, the AMF entity determines that the RSCs corresponding to S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4 are 1, 3, and 4, respectively.
  • the AMF entity then acquires one or more S-NSSAIs that the UE is allowed to use and RSCs that correspond one-to-one with one or more S-NSSAIs that the UE is allowed to use.
  • the AMF entity sends a second registration response message to the UE.
  • the AMF entity sends a second registration response message to the UE after acquiring one or more S-NSSAIs that are allowed to be used by the UE and one-to-one RSC corresponding to one or more S-NSSAIs that the UE is allowed to use.
  • the second registration response message includes one or more S-NSSAIs that the UE is allowed to use and an RSC that corresponds to one or more S-NSSAIs that the UE is allowed to use.
  • the UE receives a second registration response message.
  • the UE obtains, from the second registration response message, one or more S-NSSAIs that are allowed to be used by the UE, and an RSC that is one-to-one corresponding to one or more S-NSSAIs that the UE is allowed to use, that is, obtains M first indications. information.
  • the L relay devices acquire respective N indication information.
  • an indication information is used to indicate a network slice that is allowed to be used by one relay device, L is a positive integer greater than or equal to 1, and N is a positive integer greater than or equal to 1.
  • an indication information may also be used to indicate multiple network slices allowed by one relay device. This embodiment of the present application does not limit this.
  • the indication information is RSC.
  • the method for obtaining the M pieces of the first indication information by the UE in S401 is not mentioned here.
  • the registration request message sent by the relay device to the AMF entity may not include the S-NSSAI requested by the relay device.
  • the NSSF entity may directly determine one or more S-NSSAIs used by the relay device to be used as one or more S-NSSAIs permitted by the relay device.
  • AMF entity of S402 and the AMF entity of S401 may be the same or different, and may be determined according to actual conditions, which is not limited in this application.
  • the method for the UE to obtain the M first indication information may include two modes.
  • the method for obtaining the N indication information by each relay device may also include two modes.
  • the manner in which the UE obtains the M first indication information may be the same as or different from the manner in which the N indication information is obtained by each of the relay devices.
  • the L relay devices respectively send the first message to the UE.
  • the L relay devices respectively send a first message to the UE, and the first message sent by the one relay device includes N second indication information.
  • the N pieces of second indication information are N pieces of indication information in S402.
  • the first message may be a discovery message.
  • the relay device sends the first message to all UEs in the discovery range in a broadcast manner.
  • the UE receives the first message sent by the L relay devices.
  • the UE receives the first message sent by the L relay devices, and obtains the N pieces of second indication information of each relay device. If the network slice indicated by the N pieces of second indication information of the relay device includes at least one of the network slices indicated by the M first indication information of the UE, that is, the network slice allowed by the relay device includes at least one network slice allowed by the UE. Then, the UE determines the relay device as the first relay device. Optionally, in an implementation manner, if the network slice indicated by the N pieces of second indication information of the relay device completely includes the network slice indicated by the M first indication information of the UE, the UE determines the relay device as The first relay device. In this way, it can be ensured that the relay device accessed by the UE fully supports the network slice that the UE needs to use, and improves the success rate of the UE establishing the session through the relay device.
  • the first relay device determined by the UE may be at least one.
  • the UE selects any one of the at least one first relay device as the target relay device.
  • the UE establishes a connection with the target relay device.
  • the UE and the target relay device establish a WI-FI connection or a D2D connection.
  • each relay device allows the relay device to use the message.
  • the network slice broadcast broadcasts the UEs within the discovery range.
  • the UE selects a target relay device to establish a connection, and the network slice that the target relay device allows to use includes at least one network slice that the UE is allowed to use. Therefore, the probability that the relay device accessed by the UE supports the network slice that the UE needs to use is improved, and the success rate of the UE establishing the session in the network slice by the relay device is improved.
  • the embodiment of the present application further provides a method for selecting a relay device, which is applied to the communication system shown in FIG. 1.
  • the probability that the relay device accessed by the UE supports the network slice that the UE needs to use may be improved, and the success rate of the UE establishing the session in the network slice by the relay device may be improved.
  • a method for selecting a relay device provided by an embodiment of the present application may include S501-S505:
  • the UE acquires M first indication information.
  • Each of the M first indication information is used to indicate a network slice that the UE is allowed to use, and M is a positive integer greater than or equal to 1.
  • a first indication information may also be used to indicate multiple network slices that the UE allows to use. This embodiment of the present application does not limit this.
  • the first indication information is an RSC.
  • the first relay device acquires N pieces of indication information.
  • an indication information is used to indicate a network slice allowed by the first relay device, and N is a positive integer greater than or equal to 1.
  • an indication information may also be used to indicate multiple network slices that are allowed to be used by the first relay device. This embodiment of the present application does not limit this.
  • the indication information is RSC.
  • the method for obtaining the N indication information by the first relay device is the same as the method for obtaining the N indication information for each of the relay devices in the previous embodiment.
  • the method for obtaining the N indication information for each of the relay devices in the previous embodiment For details, refer to S402, and details are not described herein again.
  • the first relay device may be any one of the relay devices within the range of the UE discovery.
  • the method for the UE to obtain the M first indication information may include two modes.
  • the method for the first relay device to obtain the N indication information in S502 may also include two modes.
  • the manner in which the UE obtains the M first indication information may be the same as or different from the manner in which the first relay device obtains the N indication information, which is not limited in this application.
  • the first relay device sends a first message to the UE.
  • the first message includes N second indication information.
  • the N pieces of second indication information are N pieces of indication information in S502.
  • the first message may be a discovery message.
  • the UE receives the first message sent by the first relay device.
  • the UE receives the first message sent by the first relay device, and obtains the N pieces of second indication information of the first relay device. If the network slice indicated by the N second indication information of the first relay device includes the network slice indicated by the M first indication information of the at least one UE, that is, the network slice allowed to be used by the first relay device includes at least one UE allowed to use The network slice, the UE determines the first relay device as the target relay device. Optionally, in an implementation manner, if the network slice indicated by the N second indication information of the first relay device completely includes the network slice indicated by the M first indication information of the UE, the UE performs the first relay. The device is determined to be the target relay device. In this way, it can be ensured that the relay device accessed by the UE fully supports the network slice that the UE needs to use, and improves the success rate of the UE establishing the session through the relay device.
  • the UE establishes a connection with the target relay device.
  • the UE and the target relay device establish a WI-FI connection or a D2D connection.
  • the method for selecting a relay device after the UE and the relay device respectively obtain the network slice allowed by the UE through the registration process, the first relay device allows the first relay device to use the first message by using the first message.
  • the network slice informs the UE. If the network slice allowed to be used by the first relay device includes at least one network slice allowed by the UE, the UE determines that the first relay device is the target relay device and establishes a connection therewith.
  • the selection method of the relay device can improve the probability that the relay device accessed by the UE supports the network slice that the UE needs to use, and improve the success rate of the UE establishing the session in the network slice by using the relay device.
  • the embodiment of the present application further provides a registration method, which is applied to the communication system shown in FIG. 1.
  • the relay device updates the network slice allowed by the relay device according to the network slice allowed by the UE, and the UE may establish a session in the network slice allowed by the relay device, so that the UE can establish a session in the network slice through the relay device. Success rate.
  • the method may include S601-S611:
  • the UE performs registration.
  • the UE registers in the network, and can obtain the network slice allowed by the UE by using registration.
  • the process for the UE to register may include S6011-S6014:
  • S6011 The UE sends a first registration message to the AMF entity.
  • the first registration message includes one or more S-NSSAIs that the UE requests to use.
  • the UE is pre-configured with S-NSSAI configuration information.
  • the S-NSSAI configuration information may include the content as shown in Table 4.
  • the UE selects one or more S-NSSAIs that are requested to be used by the UE from the S-NSSAI configuration information as needed.
  • the S-NSSAI requested by the UE includes S-NSSAI-1, S-NSSAI-2, S-NSSAI-3, and S-NSSAI-4.
  • S-NSSAI configuration information S-NSSAI-1 S-NSSAI-2 S-NSSAI-3 S-NSSAI-4 S-NSSAI-5
  • the AMF entity receives the first registration message.
  • the AMF entity obtains one or more S-NSSAIs that the UE requests to use from the first registration message, and requests the UDM entity to sign the contract.
  • the UDM entity determines, according to the UE subscription, that the UE can access the network through the relay device, and then notifies the AMF entity that the UE is subscribed to use one or more S-NSSAIs.
  • the AMF entity obtains one or more S-NSSAIs used by the UE for subscription from the UDM entity.
  • the AMF entity sends one or more S-NSSAIs used by the UE and one or more S-NSSAIs used by the UE to the NSSF entity, and the NSSF entity uses one or more S-NSSAIs according to the UE request and One or more S-NSSAIs used by the UE to subscribe determine one or more S-NSSAIs that the UE is allowed to use.
  • the NSSF entity determines the intersection of one or more S-NSSAIs used by the UE request and one or more S-NSSAIs used by the UE for subscription as one or more S-NSSAIs that the UE is allowed to use.
  • the S-NSSAI allowed by the UE includes S-NSSAI-1, S-NSSAI-3, and S-NSSAI-4.
  • the AMF entity obtains one or more S-NSSAIs that the UE is allowed to use from the NSSF entity.
  • the AMF entity sends a second registration message to the UE.
  • the AMF entity sends a second registration message to the UE, including one or more S-NSSAIs that the UE is allowed to use.
  • the UE receives the second registration message.
  • the UE receives the second registration message, and obtains one or more S-NSSAIs that the UE is allowed to use from the second registration message, and completes the registration process.
  • the relay device performs registration.
  • the relay device is registered in the network, and the network slice allowed by the relay device can be obtained by registration.
  • the process of registering the relay device may include S6021-S6024:
  • the relay device sends a third registration message to the AMF entity.
  • the third registration message is used to request registration.
  • AMF entity of S602 and the AMF entity of S601 may be the same or different, and may be determined according to actual conditions, which is not limited in this application.
  • the AMF entity receives the third registration message.
  • the AMF entity requests a contract from the UDM entity.
  • the UDM entity notifies the AMF entity relay device of one or more S-NSSAIs used by the subscription device.
  • the AMF entity sends one or more S-NSSAIs used by the relay device to the NSSF entity, and the NSSF entity determines, according to one or more S-NSSAIs used by the relay device, the one that the relay device allows. Or multiple S-NSSAI.
  • the NSSF entity selects one or more by default from one or more S-NSSAIs used by the relay device to determine one or more S-NSSAIs that the relay device is allowed to use.
  • the AMF entity obtains from the NSSF entity one or more S-NSSAIs that the relay device is allowed to use.
  • the AMF entity sends a fourth registration message to the relay device.
  • the AMF entity sends a fourth registration message to the relay device, including one or more S-NSSAIs that the relay device allows.
  • the relay device receives the fourth registration message.
  • the relay device receives the fourth registration message, and obtains one or more S-NSSAIs that are allowed to be used by the relay device from the fourth registration message, and completes the registration process.
  • the UE establishes a connection with the relay device.
  • the UE and the relay device discover each other and establish a connection.
  • the UE establishes a WI-FI connection or a D2D connection with the relay device.
  • the relay device may obtain the UE identifier of the UE by using a discovery message, such as a Globally Unique Temporary UE Identity (GUTI).
  • a discovery message such as a Globally Unique Temporary UE Identity (GUTI).
  • GUI Globally Unique Temporary UE Identity
  • the UE identifier may not be included in the discovery message.
  • the UE sends the first information to the relay device.
  • the UE may send the first information to the relay device by using the second message.
  • the first information is the UE identifier or the second network slice information, where the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use.
  • the second message may be an information update message.
  • the UE may also send the first information to the relay device by using the second message, and the relay device may obtain the first information by using the discovery message.
  • the relay device receives the first information.
  • the relay device acquires the UE identifier or the second network slice information.
  • the first information is a UE identifier, such as a GUTI.
  • the information update message includes GUTI.
  • the first information is second network slice information, such as one or more S-NSSAIs that the UE is allowed to use.
  • the information update message includes one or more S-NSSAIs and GUTIs that the UE is allowed to use.
  • the relay device sends a registration request message to the AMF entity.
  • the registration request message sent by the relay device to the AMF entity includes the first information and the first indication information.
  • the first indication information is used to indicate that the AMF entity updates the first network slice information, where the first network slice information is used to indicate one or more S-NSSAIs that the relay device is allowed to use.
  • the AMF entity receives a registration request message sent by the relay device.
  • the AMF entity After receiving the registration request message, the AMF entity updates the first network slice information according to the indication.
  • the manner in which the AMF entity updates the first network slice information may include two types: the AMF entity updates the first network slice information or the NSSF entity updates the first network slice information.
  • the AMF entity updates the first network slice information, and the method may include S6071-S6072:
  • the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use.
  • the method for the AMF entity to obtain one or more S-NSSAIs that the UE is allowed to use may include the following two types:
  • the first information is a UE identifier.
  • the AMF entity sends a second request message to the first AMF entity, including the UE identifier and the third indication information, where the third indication information is used to indicate that the first AMF entity acquires one or more S-NSSAIs that the UE is allowed to use.
  • the second request message may be a context transfer request message.
  • the first AMF entity is an AMF entity that saves the UE context information.
  • the first AMF entity and the AMF entity in the foregoing may be the same or may not be the same.
  • the first AMF entity acquires one or more S-NSSAIs that the UE is allowed to use according to the UE identity.
  • the first AMF entity finds the saved UE context according to the UE identity, and reads one or more S-NSSAIs that the UE is allowed to use from the UE context.
  • the first AMF entity sends a second response message to the AMF entity, including the UE identity and one or more S-NSSAIs that the UE is allowed to use.
  • the second response message may be a context transmission response message.
  • the AMF entity receives the second response message sent by the first AMF entity, and acquires one or more S-NSSAIs that the UE is allowed to use.
  • the first information is the second network slice information.
  • the AMF entity obtains the first information from the registration request message sent by the relay device, where the first information is the second network slice information, where the second network slice information is used to indicate one or more S-NSSAIs that the UE is allowed to use; the AMF entity Acquiring one or more S-NSSAIs that the UE is allowed to use according to the second network slice information.
  • the AMF entity updates the first network slice information according to an intersection of one or more S-NSSAIs and one or more S-NSSAIs that the UE allows to use.
  • the AMF entity acquires the relay device to subscribe to use one or more S-NSSAIs.
  • the AMF entity requests the UDM entity to sign the contract.
  • the UDM entity notifies the AMF entity relay device of one or more S-NSSAIs used by the subscription device.
  • the AMF entity joins the one or more S-NSSAIs that the UE is allowed to use with the relay device to join the first network slice information using the intersection of one or more S-NSSAIs.
  • the network slice allowed by the relay device is a network slice corresponding to S-NSSAI-1, S-NSSAI-2, and S-NSSAI-3, that is, the first network slice information includes S-NSSAI-1, S- NSSAI-2 and S-NSSAI-3.
  • the network fragment sliced by the AMF entity to be used by the UE is S-NSSAI-2, S-NSSAI-3, and S-NSSAI-4
  • the network slice used by the relay device is S-NSSAI-3, S-
  • the network slice corresponding to NSSAI-4 and S-NSSAI-5, the network slice allowed by the UE and the network slice used by the relay device to subscribe to are the network slice corresponding to S-NSSAI-3 and S-NSSAI-4.
  • the AMF entity updates S-NSSAI-3 and S-NSSAI-4 to the S-NSSAI-1, S-NSSAI-2, and S-NSSAI-3 allowed by the relay device, and obtains the updated first network slice information S.
  • -NSSAI-1, S-NSSAI-2, S-NSSAI-3, and S-NSSAI-4 that is, the network slice used by the updated relay device is S-NSSAI-1, S-NSSAI-2, S- Network slice corresponding to NSSAI-3 and S-NSSAI-4.
  • the NSSF entity updates the first network slice information, and the method may include S6073-S6077:
  • the AMF entity acquires one or more S-NSSAIs that the UE is allowed to use.
  • the method for the AMF entity to obtain one or more S-NSSAIs that the UE is allowed to use may refer to S6071, and details are not described herein again.
  • the AMF entity sends a first request message to the NSSF entity.
  • the AMF entity acquires the relay device to subscribe to use one or more S-NSSAIs.
  • the AMF entity requests the UDM entity to sign the contract.
  • the UDM entity notifies the AMF entity relay device of one or more S-NSSAIs used by the subscription device.
  • the AMF entity sends a first request message to the NSSF entity, where the first request message is used to request the NSSF entity to update the first network slice information, including one or more S-NSSAIs that the UE allows to use, and the relay device subscribes to use one or more
  • the S-NSSAI and the second indication information are used to indicate that the NSSF entity updates the first network slice information.
  • the NSSF entity receives the first request message sent by the AMF entity.
  • the NSSF entity updates the first network slice information by using one or more S-NSSAIs that the UE allows to subscribe to use the intersection of one or more S-NSSAIs.
  • the NSSF entity joins one or more S-NSSAIs that the UE is allowed to use with the relay device to join the first network slice information by using an intersection of one or more S-NSSAIs.
  • the specific method for the NSSF entity to update the first network slice information is the same as the specific method for the AMF entity to update the first network slice information, and details are not described herein again.
  • the NSSF entity sends a first response message to the AMF entity.
  • the first response message includes the updated first network slice information.
  • the AMF entity receives the first response message.
  • the AMF entity receives the first response message, and obtains the updated first network slice information.
  • the AMF entity sends a registration response message to the relay device.
  • the registration response message includes the first network slice information.
  • the relay device receives the registration response message.
  • the relay device sends a first message to the UE.
  • the first message includes first network slice information.
  • the first message may be an information update indication message.
  • the UE receives the first message.
  • the UE receives the first message, and may obtain the first network slice information from the first message, that is, obtain a network slice that is allowed to be used by the relay device.
  • the session can be established in the network slice allowed by the relay device to improve the success rate of the session establishment.
  • the UE and the relay device respectively obtain the network slice allowed by the UE through the registration process, and the UE establishes a connection with any one of the relay devices.
  • the relay device updates the allowed network slice of the relay device using the network slice according to the network slice allowed by the UE and the subscription of the relay device, and notifies the UE.
  • the UE may establish a session in a network slice that the relay device is allowed to use, so that the success rate of the UE establishing a session within the network slice through the relay device may be improved.
  • the network side device, the relay device, and the user equipment include corresponding hardware structures and/or software modules for performing respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiments of the present application may perform the division of the function modules on the network side device, the relay device, and the user device according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated in the function.
  • a processing module In a processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner. The following is an example of dividing each functional module by using corresponding functions.
  • FIG. 8 is a schematic diagram of the logical structure of the apparatus 800 provided by the embodiment of the present application.
  • the apparatus 800 may be an access network device, and the function of the access network device in the method provided by the embodiment of the present application may be implemented.
  • the device 800 may also be capable of supporting the connection.
  • the device for accessing the network device in the method provided by the embodiment of the present application is implemented by the network access device.
  • Device 800 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • the device 800 includes a receiving module 801 and a transmitting module 802.
  • the receiving module 801 can be used to perform S203 in FIG. 3, or perform S305, S311, and/or S314 in FIG. 4, and/or perform other steps described in this application.
  • the transmitting module 802 can be used to perform S204, S207, and/or S209 in FIG. 3, or perform S306 and/or S312 in FIG. 4, and/or perform other steps described in this application.
  • FIG. 9 is a schematic diagram of a logical structure of a device 900 according to an embodiment of the present disclosure.
  • the device 900 may be a relay device, which can implement the function of the relay device in the method provided by the embodiment of the present application.
  • the device 900 can also support the relay device.
  • the device 900 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 900 can also be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. As shown in FIG.
  • the apparatus 900 includes a receiving module 901, a transmitting module 902, an obtaining module 903, and a processing module 904.
  • the receiving module 901 may be configured to execute S205 and/or S210 in FIG. 3, or to perform S303, S307, and/or S315 in FIG. 4, or to perform S6024, S605, and/or S609 in FIG. 7, and / or perform the other steps described in this application.
  • the sending module 802 can be used to execute S206 in FIG. 3, or to perform S304 and/or S308 in FIG. 4, or to perform S403 in FIG. 5, or to perform S503 in FIG. 6, or for S6021, S606, and/or S610 in FIG. 7 are performed, and/or other steps described in this application are performed.
  • the acquisition module 903 can be used to perform S402 and/or S205 in FIG. 5, or to perform S502 in FIG. 6, and/or perform other steps described in this application.
  • the processing module 904 can be used to execute S201 in FIG. 3, or to perform S301 in FIG. 4, or to perform S405 in FIG. 5, or to perform S505 in FIG. 6, or to perform the method in FIG. S602 and/or S603, and/or perform other steps described in this application.
  • FIG. 10 is a schematic diagram of a logical structure of a device 1000 according to an embodiment of the present disclosure.
  • the device 1000 may be a user equipment, and can implement the function of the user equipment in the method provided by the embodiment of the present application.
  • the device 1000 can also support the user equipment to implement the application.
  • the device 1000 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 1000 can also be implemented by a chip system.
  • the chip system may be composed of a chip, and may also include a chip and other discrete devices. As shown in FIG.
  • the device 1000 includes a receiving module 1001, a sending module 1002, an obtaining module 1003, and a processing module 1004.
  • the receiving module 1001 may be configured to execute S208 in FIG. 3, or to perform S309 and/or S313 in FIG. 4, or to perform S401d, S4014, and/or S404 in FIG. 5, or to perform the method in FIG. S504, or for performing S6014 and/or S611 in FIG. 7, and/or performing other steps described in this application.
  • the sending module 1002 may be configured to execute S202 in FIG. 3, or to perform S302 and/or S310 in FIG. 4, or to perform S401a and/or S4011 in FIG. 5, or to execute S6011 in FIG. And/or S604, and/or perform other steps described in this application.
  • the acquisition module 1003 can be used to perform S401 in FIG. 5, or to perform S501 in FIG. 6, and/or perform other steps described in this application.
  • the processing module 1004 may be configured to execute S201 in FIG. 3, or to perform S301 in FIG. 4, or to perform S405 in FIG. 5, or to perform S505 in FIG. 6, or to perform the method in FIG. S601 and/or S603, and/or perform other steps described in this application.
  • the apparatus 1100 may be an AMF entity, which can implement the function of the AMF entity in the method provided by the embodiment of the present application.
  • the apparatus 1100 can also support the AMF entity to implement the application.
  • the device 1100 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 1100 can also be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. As shown in FIG.
  • the device 1100 includes a receiving module 1101, a sending module 1102, an obtaining module 1103, and a processing module 1104.
  • the receiving module 1101 can be used to perform S401b and/or S4012 in FIG. 5, or to perform S6012, S6022, S607, and/or S6077 in FIG. 7, and/or perform other steps described in this application.
  • the transmitting module 1102 can be used to perform S401c and/or S4013 in FIG. 5, or to perform S6013, S6023, S6074, and/or S608 in FIG. 7, and/or perform other steps described in this application.
  • the acquisition module 1103 can be used to perform S6071 and/or S6073 in FIG. 7, and/or perform other steps described in this application.
  • Processing module 1104 can be used to perform S6072 in Figure 7, and/or perform other steps described in this application.
  • FIG. 12 is a schematic diagram of the logical structure of the apparatus 1200 provided by the embodiment of the present application.
  • the apparatus 1200 may be an NSSF entity, and can implement the function of the NSSF entity in the method provided by the embodiment of the present application.
  • the apparatus 1200 can also support the NSSF entity to implement the present application.
  • the device 1200 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 1200 can also be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. As shown in FIG.
  • the device 1200 includes a receiving module 1201 and a transmitting module 1202.
  • the receiving module 1201 can be used to perform S6075 in FIG. 7, and/or perform other steps described in this application.
  • the transmitting module 1202 can be used to perform S6076 in FIG. 7, and/or perform other steps described in this application.
  • device 800, device 900, device 1000, device 1100, or device 1200 may be presented in a form that divides the various functional modules in an integrated manner.
  • a “module” herein may refer to a particular ASIC, circuitry, processor and storage device that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above.
  • device 800, device 900, device 1000, device 1100, or device 1200 may take the form shown in FIG.
  • the processor 201 in FIG. 2 can execute the instruction by using a computer stored in the memory 203, so that the device 800, the device 900, the device 1000, the device 1100, or the device 1200 executes the session establishment method and the relay device in the foregoing method embodiment. Selection method and registration method.
  • the processing module 1004, the receiving module 1101, the sending module 1102, the obtaining module 1103 and the processing module 1104 in FIG. 11, or the function/implementation process of the receiving module 1201 and the transmitting module 1202 in FIG. 12 may pass through the processor in FIG. 201 calls the computer execution instructions stored in the memory 203 to implement.
  • the acquisition module 1103 and the processing module 1104 in FIG. 11 may pass through the processor in FIG. 2 .
  • 201 calls the computer execution instructions stored in the memory 203 to implement, the receiving module 801 and the transmitting module 802 in FIG. 8, the receiving module 901 and the transmitting module 902 in FIG. 9, the receiving module 1001 and the transmitting module 1002 in FIG.
  • the function/implementation process of the receiving module 1101 and the transmitting module 1102 in FIG. 11, or the receiving module 1201 and the transmitting module 1202 in FIG. 12 can be implemented by the communication interface 204 in FIG.
  • the function/implementation process of the receiving module 1001 and the transmitting module 1002, the receiving module 1101 and the transmitting module 1102 in FIG. 11, or the receiving module 1201 and the transmitting module 1202 in FIG. 12 can also be implemented by pins or circuits or the like.
  • memory 203 may be a memory unit within the chip, such as a register, cache, or the like.
  • the memory 203 may be a storage unit located outside the chip in the terminal, which is not specifically limited in this embodiment of the present application.
  • the device provided by the embodiment of the present application can be used to perform the foregoing session establishment method, the selection method of the relay device, and the registration method. Therefore, the technical effects of the method can be referred to the foregoing method embodiments, and details are not described herein.
  • the embodiment of the present application further provides a storage medium, which may include a memory 203.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user device, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)). Wait.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

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  • Mobile Radio Communication Systems (AREA)

Abstract

本申请实施例公开了一种会话建立方法、中继设备的选择方法和注册方法及设备,涉及通信技术领域。能够实现UE通过中继设备在一个网络切片内建立会话。该方法可以包括:接入网设备接收用户设备UE发送的第一消息,所述第一消息包括第一会话建立请求消息和所述UE请求使用的单一网络切片选择辅助信息S-NSSAI;所述接入网设备向所述UE发送第一重配请求消息,所述第一重配请求消息包括第一会话建立响应消息和数据资源承载DRB配置信息,所述DRB配置信息为所述S-NSSAI对应的DRB的信息;所述接入网设备向中继设备发送第二重配请求消息,所述第二重配请求消息包括所述DRB配置信息和所述UE的UE标识。

Description

会话建立方法、中继设备的选择方法和注册方法及设备 技术领域
本申请涉及通信技术领域,尤其涉及一种会话建立方法、中继设备的选择方法和注册方法及设备。
背景技术
随着5G通信技术的不断发展,为了给更多的用户提供服务,运营商希望5G核心网可以容纳更多不同的接入网技术;不仅局限于以传统的基站组成的无线接入网(Radio Access Network,RAN),例如:4G的E-UTRAN(Evolved UMTS Terrestrial Radio Access Network),5G的新无线(New Radio,NR),也可以将有线宽带接入技术融入到5G核心网。一旦将有线宽带接入技术融入5G核心网,凡是有无线保真(Wireless Fidelity,WIFI)连接或宽带覆盖的地方,运营商都可以提供5G业务。
对于有线宽带接入网,通常是由一个接入点(Access Point,AP)或用户驻地设备(Customer Premises Equipment,CPE)接入到有线宽带,然后AP或CPE将信号转化为无线信号,例如:WIFI或设备对设备(Device to Device,D2D)。用户设备(User Equipment,UE)则通过无线信号与AP或CPE连接。
5G核心网融入有线宽带接入技术后,UE可以通过有线宽带接入网实现与核心网的信令交互和数据传输。例如,UE接入CPE,CPE通过RAN接入到核心网,从而实现UE与核心网进行信令交互和数据传输。
在5G架构中,根据不同的服务需求,比如时延、带宽、安全性和可靠性等,将物理资源划分为多个虚拟网络,每个虚拟网络即为一个网络切片。每个会话属于一个网络切片,不同网络切片的会话需要使用不同的网络资源。UE可以通过注册过程获取UE的允许使用的单一网络切片选择辅助信息(Single-Network Slice Selection Assistance Information,S-NSSAI),UE只能在其允许使用的S-NSSAI中标识的网络切片建立会话。CPE也可以通过注册过程获取CPE的允许使用的S-NSSAI。如果UE通过CPE接入RAN,UE与核心网的信令交互和数据传输需要使用CPE与RAN之间的数据传输通道,即数据资源承载(Data Resource Bearer,DRB)。在CPE不支持UE需要使用的网络切片的情况下,如果UE通过该CPE接入网络,因为不同网络切片不能共用DRB,会造成UE的某些业务无法使用。
发明内容
本申请实施例提供一种会话建立方法、中继设备的选择方法和注册方法、设备及系统,能够实现UE通过中继设备在一个网络切片内建立会话,提高UE通过中继设备在网络切片内建立会话的成功率。
为达到上述目的,本申请的实施例采用如下技术方案:
第一方面,本申请提供了一种会话建立方法及装置。
在一种可能的设计中,该方法可以包括:接入网设备接收用户设备UE发送的第一消息,其中包括第一会话建立请求消息和UE请求使用的S-NSSAI;接入网设备向 UE发送第一重配请求消息,其中包括第一会话建立响应消息和DRB配置信息,所述DRB配置信息为S-NSSAI对应的DRB的信息;接入网设备还向中继设备发送第二重配请求消息,其中包括所述DRB配置信息和UE标识。在该方法中,接入网设备为UE选择中继设备的,在UE请求的网络切片内的DRB,为UE传输信令和/或数据,并通过重配请求消息通知UE和中继设备。这样,可以实现UE通过中继设备在一个网络切片内建立会话。
在一种可能的设计中,在接入网设备向UE发送第一重配请求消息之前,接入网设备向中继设备发送第三重配请求消息,用于指示中继设备建立UE请求使用的S-NSSAI对应的DRB。在这种实现方式中,如果中继设备在UE请求使用的切片内不存在DRB,则建立中继设备在该切片内的DRB,用于传输UE的信令和/或数据。
在一种可能的设计中,在接入网设备接收UE发送的第一消息之前,接入网设备接收中继设备发送的第二消息,所述第二消息包括第二会话建立请求消息和UE请求使用的S-NSSAI;接入网设备向中继设备发送第四重配请求消息,所述第四重配请求消息包括第二会话建立响应消息。在这种实现方式中,如果中继设备在UE请求使用的切片内没有建立会话,则建立中继设备在该切片内的会话,中继设备在该切片内的会话对应的DRB可以用于传输UE的信令和/或数据。
相应的,本申请还提供了一种会话建立装置,该装置可以实现第一方面所述的会话建立方法。例如,该装置可以是接入网设备或应用于接入网设备中的芯片,还可以是其他能够实现上述会话建立方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第一方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:接收模块和发送模块。其中,接收模块用于接收用户设备UE发送的第一消息,所述第一消息包括第一会话建立请求消息和UE请求使用的S-NSSAI;发送模块用于向UE发送第一重配请求消息,所述第一重配请求消息包括第一会话建立响应消息和DRB配置信息,所述DRB配置信息为所述S-NSSAI对应的DRB的信息;接入网设备向中继设备发送第二重配请求消息,所述第二重配请求消息包括所述DRB配置信息和UE的UE标识。
在一种可能的设计中,发送模块还用于在接入网设备向UE发送第一重配请求消息之前,向中继设备发送第三重配请求消息,用于指示中继设备建立所述UE请求使用的S-NSSAI对应的DRB。
在一种可能的设计中,接收模块还用于在接入网设备接收UE发送的第一消息之前,接收中继设备发送的第二消息,所述第二消息包括第二会话建立请求消息和UE请求使用的S-NSSAI;发送模块还用于向中继设备发送第四重配请求消息,其中包括第二会话建立响应消息。
第二方面,本申请提供了一种会话建立方法及装置。
在一种可能的设计中,该方法可以包括:中继设备接收接入网设备发送的重配请 求消息,其中包括DRB配置信息和UE的UE标识,所述DRB配置信息为UE请求使用的S-NSSAI对应的DRB的信息;中继设备在所述DRB配置信息对应的DRB上传输UE的信令和/或数据。在该方法中,中继设备根据接入网设备的指示,利用UE请求的网络切片内的DRB为UE传输信令和/或数据。这样,可以实现UE通过中继设备在一个网络切片内建立会话。
在一种可能的设计中,在中继设备接收接入网设备发送的重配请求消息之前,中继设备接收接入网设备发送的第三重配请求消息,用于指示中继设备建立UE请求使用的S-NSSAI对应的DRB。在这种实现方式中,如果中继设备在UE请求使用的切片内不存在DRB,则建立中继设备在该切片内的DRB,用于传输UE的信令和/或数据。
在一种可能的设计中,在中继设备接收接入网设备发送的重配请求消息之前,中继设备接收UE发送的第一请求消息,所述第一请求消息包括UE请求使用的S-NSSAI;然后中继设备向UE发送第一响应消息,其中包括第一指示信息,所述第一指示信息用于指示中继设备在S-NSSAI内建立会话成功。这样,中继设备确定在UE请求使用的切片内存在会话,即可以通知UE,使UE确定中继设备在该切片内存在会话,可以建立UE在该切片内的会话。
在一种可能的设计中,中继设备向UE发送第一响应消息之前,中继设备判断,如果中继设备在UE请求使用的S-NSSAI内没有建立会话,则向接入网设备发送第二消息,其中包括会话建立请求消息和UE请求使用的S-NSSAI;中继设备接收接入网设备发送的第四重配请求消息,其中包括第二会话建立响应消息。在这种实现方式中,如果中继设备在UE请求使用的切片内没有建立会话,则建立中继设备在该切片内的会话,中继设备在该切片内的会话对应的DRB可以用于传输UE的信令和/或数据。
相应的,本申请还提供了一种会话建立装置,该装置可以实现第二方面所述的会话建立方法。例如,该装置可以是中继设备或应用于中继设备中的芯片,还可以是其他能够实现上述会话建立方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第二方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:接收模块和处理模块。其中,接收模块用于接收接入网设备发送的重配请求消息,其中包括DRB配置信息和UE的UE标识,所述DRB配置信息为UE请求使用的S-NSSAI对应的DRB的信息;处理模块用于在DRB配置信息对应的DRB上传输UE的信令和/或数据。
在一种可能的设计中,接收模块还用于在接收接入网设备发送的重配请求消息之前,接收接入网设备发送的第三重配请求消息,用于指示中继设备建立UE请求使用的S-NSSAI对应的DRB。
在一种可能的设计中,接收模块还用于在接收接入网设备发送的重配请求消息之前,接收UE发送的第一请求消息,其中包括UE请求使用的S-NSSAI;该装置还可以包括发送模块,用于向UE发送第一响应消息,其中包括第一指示信息,所述第一 指示信息用于指示中继设备在所述S-NSSAI内建立会话成功。
在一种可能的设计中,处理模块还用于确定中继设备在UE请求使用的S-NSSAI内是否建立会话;如果处理模块确定中继设备在UE请求使用的S-NSSAI内没有建立会话,发送模块还用于在向UE发送第一响应消息之前,向接入网设备发送第二消息,所述第二消息包括会话建立请求消息和UE请求使用的S-NSSAI;接收模块还用于接收接入网设备发送的第四重配请求消息,其中包括第二会话建立响应消息。
第三方面,本申请提供了一种会话建立方法及装置。
在一种可能的设计中,该方法可以包括:UE向接入网设备发送第一消息,其中包括第一会话建立请求消息和UE请求使用的S-NSSAI;UE接收接入网设备发送的第一重配请求消息,其中包括第一会话建立响应消息和DRB配置信息,所述DRB配置信息为S-NSSAI对应的DRB的信息;UE在DRB配置信息对应的DRB上传输信令和/或数据。在该方法中,UE根据接入网设备的指示,利用中继设备在UE请求的网络切片内的DRB为UE传输信令和/或数据。这样,可以实现UE通过中继设备在一个网络切片内建立会话。
在一种可能的设计中,在UE向接入网设备发送第一消息之前,UE向中继设备发送第一请求消息,其中包括UE请求使用的S-NSSAI;UE接收中继设备发送的第一响应消息,其中包括第一指示信息,所述第一指示信息用于指示中继设备在S-NSSAI内建立会话成功。在这种实现方式中,如果中继设备在UE请求使用的切片内没有建立会话,则建立中继设备在该切片内的会话,中继设备在该切片内的会话对应的DRB可以用于传输UE的信令和/或数据。
相应的,本申请还提供了一种会话建立装置,该装置可以实现第三方面所述的会话建立方法。例如,该装置可以是用户设备或应用于用户设备中的芯片,还可以是其他能够实现上述会话建立方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第三方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:发送模块、接收模块和处理模块。其中,发送模块用于向接入网设备发送第一消息,其中包括第一会话建立请求消息和UE请求使用的S-NSSAI;接收模块用于接收接入网设备发送的第一重配请求消息,其中包括第一会话建立响应消息和DRB配置信息,所述DRB配置信息为S-NSSAI对应的DRB的信息;处理模块用于在DRB配置信息对应的DRB上传输信令和/或数据。
在一种可能的设计中,发送模块还用于在向接入网设备发送第一消息之前,向中继设备发送第一请求消息,其中包括UE请求使用的S-NSSAI;接收模块还用于接收中继设备发送的第一响应消息,其中包括第一指示信息,所述第一指示信息用于指示中继设备在S-NSSAI内建立会话成功。
第四方面,本申请提供了一种中继设备的选择方法及装置。
在一种可能的设计中,该方法可以包括:用户设备获取M个第一指示信息,其中 M个第一指示信息中的每个第一指示信息用于指示UE允许使用的一个网络切片,其中M为大于或等于1的正整数;UE接收L个中继设备分别发送的第一消息,其中一个中继设备的第一消息包括N个第二指示信息,N个第二指示信息中的每个第二指示信息用于指示中继设备允许使用的一个网络切片,L和N分别为大于或等于1的正整数;UE根据M个第一指示信息和L个第一消息,选择任意一个第一中继设备为目标中继设备,其中,第一中继设备的N个第二指示信息指示的网络切片包含M个第一指示信息指示的至少一个网络切片。在该方法中,UE和中继设备分别获取自身的允许使用的网络切片之后,至少一个中继设备通过消息将本中继设备允许使用的网络切片通知UE。UE选择一个目标中继设备建立连接,该目标中继设备允许使用的网络切片包含UE允许使用的至少一个网络切片。从而可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。在一种实现方式中,如果中继设备的N个第二指示信息指示的网络切片完全包含UE的M个第一指示信息指示的网络切片,则UE将这个中继设备确定为第一中继设备。这样,可以保证UE接入的中继设备完全支持UE需要使用的网络切片,提高UE通过中继设备建立会话的成功率。
在一种可能的设计中,第一指示信息和第二指示信息分别为中继服务码RSC。
在一种可能的设计中,UE获取M个第一指示信息的方法包括:UE预先配置有S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于M的正整数;UE向AMF实体发送第一注册请求消息,其中,包括UE请求使用的一个或多个S-NSSAI;UE接收AMF实体发送的第一注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI;UE根据UE允许使用的一个或多个S-NSSAI查询第一信息,获取M个第一指示信息。
在一种可能的设计中,UE获取M个第一指示信息的方法包括:UE向AMF实体发送第二注册请求消息,其中包括UE请求使用的一个或多个S-NSSAI;UE接收AMF实体发送的第二注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC;UE根据UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取M个第一指示信息。
在一种可能的设计中,UE根据M个第一指示信息和L个第一消息,选择任意一个第一中继设备为目标中继设备后,与目标中继设备建立连接。
相应的,本申请还提供了一种中继设备的选择装置,该装置可以实现第四方面所述的中继设备的选择方法。例如,该装置可以是用户设备或应用于用户设备中的芯片,还可以是其他能够实现上述中继设备的选择方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第四方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:获取模块、接收模块和处理模块。其中, 获取模块用于获取M个第一指示信息,其中M个第一指示信息中的每个第一指示信息用于指示所述UE允许使用的一个网络切片,所述M为大于或等于1的正整数;接收模块用于接收L个中继设备分别发送的第一消息,其中一个中继设备的第一消息包括N个第二指示信息,其中N个第二指示信息中的每个第二指示信息用于指示中继设备允许使用的一个网络切片,L和N分别为大于或等于1的正整数;处理模块用于根据M个第一指示信息和L个第一消息,选择任意一个第一中继设备为目标中继设备,其中,第一中继设备的所述N个第二指示信息指示的网络切片包含M个第一指示信息指示的至少一个网络切片。
在一种可能的设计中,第一指示信息和第二指示信息分别为RSC。
在一种可能的设计中,UE预先配置有S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,其中S为大于或等于M的正整数;该装置还包括发送模块,用于向AMF实体发送第一注册请求消息,其中包括UE请求使用的一个或多个S-NSSAI;接收模块用于接收AMF实体发送的第一注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI;获取模块获取M个第一指示信息,具体包括:获取模块根据接收模块接收的UE允许使用的一个或多个S-NSSAI查询UE预先配置的第一信息,获取M个第一指示信息。
在一种可能的设计中,该装置还包括发送模块,用于向AMF实体发送第二注册请求消息,其中,包括所述UE请求使用的一个或多个S-NSSAI;接收模块用于接收AMF实体发送的第二注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC;获取模块用于根据UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取M个第一指示信息。
在一种可能的设计中,处理模块用于在根据M个第一指示信息和L个第一消息,选择任意一个第一中继设备为目标中继设备后,与目标中继设备建立连接。
第五方面,本申请提供了一种中继设备的选择方法及装置。
在一种可能的设计中,该方法可以包括:L个中继设备分别获取各自的N个指示信息,L个中继设备分别向用户设备UE发送第一消息,一个中继设备的第一消息包括所述N个指示信息,第一消息用于指示UE根据M个第一指示信息和L个第一消息选择L个中继设备中任意一个第一中继设备为目标中继设备;其中,L为大于或等于1的正整数;一个指示信息用于指示中继设备允许使用的一个网络切片,N为大于或等于1的正整数;一个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;第一中继设备的N个指示信息指示的网络切片包含M个第一指示信息指示的至少一个网络切片。在该方法中,UE和中继设备分别获取自身的允许使用的网络切片之后,至少一个中继设备通过消息将本中继设备允许使用的网络切片通知UE。UE选择一个目标中继设备建立连接,该目标中继设备允许使用的网络切片包含UE允许使用的至少一个网络切片。从而可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。
在一种可能的设计中,第一指示信息和第二指示信息分别为RSC。
在一种可能的设计中,L个中继设备分别获取各自的N个指示信息,包括:中继 设备预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于所述M的正整数;中继设备向AMF实体发送第一注册请求消息,其中包括中继设备请求使用的一个或多个S-NSSAI;中继设备接收AMF实体发送的第一注册响应消息,其中包括中继设备允许使用的一个或多个S-NSSAI;中继设备根据中继设备允许使用的一个或多个S-NSSAI查询第一信息,获取N个指示信息。
在一种可能的设计中,L中继设备分别获取各自的N个指示信息,包括:中继设备向AMF实体发送第二注册请求消息,其中包括中继设备请求使用的一个或多个S-NSSAI;中继设备接收AMF实体发送的第二注册响应消息,其中包括中继设备允许使用的一个或多个S-NSSAI以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC;中继设备根据中继设备允许使用的一个或多个S-NSSAI,以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取N个指示信息。
相应的,本申请还提供了一种中继设备的选择装置,该装置可以实现第五方面所述的中继设备的选择方法。例如,该装置可以是中继设备或应用于中继设备中的芯片,还可以是其他能够实现上述中继设备的选择方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第五方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:获取模块和发送模块。其中,获取模块用于获取各自的N个指示信息,一个指示信息用于指示中继设备允许使用的一个网络切片,N为大于或等于1的正整数;发送模块用于分别向用户设备UE发送第一消息,其中包括N个指示信息,第一消息用于指示UE根据M个第一指示信息和L个第一消息选择L个中继设备中任意一个第一中继设备为目标中继设备;其中,L为大于或等于1的正整数;一个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;第一中继设备的N个指示信息指示的网络切片包含M个第一指示信息指示的至少一个网络切片。
在一种可能的设计中,第一指示信息和第二指示信息分别为RSC。
在一种可能的设计中,中继设备预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于M的正整数;发送模块用于向AMF实体发送第一注册请求消息,其中包括中继设备请求使用的一个或多个S-NSSAI;该装置还包括接收模块,接收模块用于接收AMF实体发送的第一注册响应消息,其中包括中继设备允许使用的一个或多个S-NSSAI;获取模块具体用于根据接收模块接收的中继设备允许使用的一个或多个S-NSSAI查询中继设备预先配置的第一信息,获取N个指示信息。
在一种可能的设计中,发送模块用于向AMF实体发送第二注册请求消息,其中包括中继设备请求使用的一个或多个S-NSSAI;该装置还包括接收模块,接收模块用于接收AMF实体发送的第二注册响应消息,其中包括中继设备允许使用的一个或多个S-NSSAI以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC;获取 模块具体用于根据中继设备允许使用的一个或多个S-NSSAI,以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取N个指示信息。
第六方面,本申请提供了一种中继设备的选择方法及装置。
在一种可能的设计中,该方法可以包括:用户设备获取M个第一指示信息,其中M个第一指示信息中的每个第一指示信息用于指示UE允许使用的一个网络切片,其中M为大于或等于1的正整数;UE接收第一中继设备发送的第一消息,其中包括N个第二指示信息,N个第二指示信息中的每个第二指示信息用于指示中继设备允许使用的一个网络切片,N为大于或等于1的正整数;N个第二指示信息指示的网络切片包括至少一个所述M个第一指示信息指示的网络切片时,所述UE确定所述第一中继设备为目标中继设备。在该方法中,UE和中继设备分别获取自身的允许使用的网络切片之后,第一中继设备通过第一消息将第一中继设备允许使用的网络切片通知UE。如果第一中继设备允许使用的网络切片包括至少一个UE允许使用的网络切片,则UE确定第一中继设备为目标中继设备,与其建立连接。通过这种方法,可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。在一种实现方式中,如果第一中继设备的N个第二指示信息指示的网络切片完全包含UE的M个第一指示信息指示的网络切片,则UE将第一中继设备确定为目标中继设备。这样,可以保证UE接入的中继设备完全支持UE需要使用的网络切片,提高UE通过中继设备建立会话的成功率。
在一种可能的设计中,第一指示信息和第二指示信息分别为中继服务码RSC。
在一种可能的设计中,UE预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于所述M的正整数。UE获取M个第一指示信息之前,向AMF实体发送第一注册请求消息,其中,包括UE请求使用的一个或多个S-NSSAI;接收AMF实体发送的第一注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI。之后,UE根据UE允许使用的一个或多个S-NSSAI和第一信息,获取M个第一指示信息。
在一种可能的设计中,UE向AMF实体发送第二注册请求消息,其中包括UE请求使用的一个或多个S-NSSAI;UE接收AMF实体发送的第二注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC;UE根据UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取M个第一指示信息。
在一种可能的设计中,UE确定第一中继设备为目标中继设备后,与目标中继设备建立连接。
相应的,本申请还提供了一种中继设备的选择装置,该装置可以实现第六方面所述的中继设备的选择方法。例如,该装置可以是用户设备或应用于用户设备中的芯片,还可以是其他能够实现上述中继设备的选择方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第六方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其 他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:获取模块、接收模块和处理模块。其中,获取模块用于获取M个第一指示信息,其中M个第一指示信息中的每个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;接收模块用于接收第一中继设备发送的第一消息,其中包括N个第二指示信息,N个第二指示信息中的每个第二指示信息用于指示中继设备允许使用的一个网络切片,N为大于或等于1的正整数;处理模块用于在N个第二指示信息指示的网络切片包括至少一个M个第一指示信息指示的网络切片的情况下,确定第一中继设备为目标中继设备。
在一种可能的设计中,M个第一指示信息中的每个第一指示信息和N个第二指示信息中的每个第二指示信息都为中继服务码RSC。
在一种可能的设计中,UE预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于所述M的正整数;该装置还包括发送模块,用于向AMF实体发送第一注册请求消息,其中包括UE请求使用的一个或多个S-NSSAI;接收模块还用于接收AMF实体发送的第一注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI;获取模块获取M个第一指示信息,具体包括:根据接收模块接收的UE允许使用的一个或多个S-NSSAI和配置的第一信息,获取M个第一指示信息。
在一种可能的设计中,该装置还包括发送模块,用于向AMF实体发送第二注册请求消息,其中,包括所述UE请求使用的一个或多个S-NSSAI;接收模块用于接收AMF实体发送的第二注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC;获取模块具体用于根据UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取M个第一指示信息。
在一种可能的设计中,处理模块还用于确定第一中继设备为目标中继设备后,与目标中继设备建立连接。
第七方面,本申请提供了一种中继设备的选择方法及装置。
在一种可能的设计中,该方法可以包括:第一中继设备获取N个指示信息,第一中继设备向用户设备UE发送第一消息,所述第一消息包括N个指示信息,用于指示UE根据M个第一指示信息和N个指示信息确定第一中继设备是否为目标中继设备;其中,一个指示信息用于指示第一中继设备允许使用的一个网络切片,N为大于或等于1的正整数;一个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;目标中继设备的N个指示信息指示的网络切片包含至少一个M个第一指示信息指示的网络切片。在该方法中,UE和中继设备分别获取自身的允许使用的网络切片之后,第一中继设备通过第一消息将第一中继设备允许使用的网络切片通知UE。如果第一中继设备允许使用的网络切片包括至少一个UE允许使用的网络切片,则UE确定第一中继设备为目标中继设备,与其建立连接。通过这种方法,可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。
在一种可能的设计中,第一指示信息和第二指示信息分别为RSC。
在一种可能的设计中,第一中继设备预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于所述M的正整数;第一中继设备向AMF实体发送第一注册请求消息,其中包括第一中继设备请求使用的一个或多个S-NSSAI;第一中继设备接收AMF实体发送的第一注册响应消息,其中包括第一中继设备允许使用的一个或多个S-NSSAI;第一中继设备根据第一中继设备允许使用的一个或多个S-NSSAI查询第一信息,获取N个指示信息。
在一种可能的设计中,第一中继设备向AMF实体发送第二注册请求消息,其中包括第一中继设备请求使用的一个或多个S-NSSAI;第一中继设备接收AMF实体发送的第二注册响应消息,其中包括第一中继设备允许使用的一个或多个S-NSSAI以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC;第一中继设备根据第一中继设备允许使用的一个或多个S-NSSAI,以及与第一中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取N个指示信息。
相应的,本申请还提供了一种中继设备的选择装置,该装置可以实现第七方面所述的中继设备的选择方法。例如,该装置可以是中继设备或应用于中继设备中的芯片,还可以是其他能够实现上述中继设备的选择方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第七方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:获取模块和发送模块。其中,获取模块用于N个指示信息,一个指示信息用于指示第一中继设备允许使用的一个网络切片,N为大于或等于1的正整数;发送模块用于向用户设备UE发送第一消息,其中包括N个指示信息,用于指示UE根据M个第一指示信息和N个指示信息确定所述第一中继设备是否为目标中继设备;其中,一个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;目标中继设备的N个指示信息指示的网络切片包含至少一个M个第一指示信息指示的网络切片。
在一种可能的设计中,第一指示信息和第二指示信息分别为RSC。
在一种可能的设计中,第一中继设备预先配置有第一信息,包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC,S为大于或等于M的正整数;发送模块用于向AMF实体发送第一注册请求消息,其中包括第一中继设备请求使用的一个或多个S-NSSAI;该装置还包括接收模块,接收模块用于接收AMF实体发送的第一注册响应消息,其中包括第一中继设备允许使用的一个或多个S-NSSAI;获取模块具体用于根据接收模块接收的第一中继设备允许使用的一个或多个S-NSSAI查询第一中继设备预先配置的第一信息,获取N个指示信息。
在一种可能的设计中,发送模块用于向AMF实体发送第二注册请求消息,其中包括第一中继设备请求使用的一个或多个S-NSSAI;该装置还包括接收模块,接收模块用于接收AMF实体发送的第二注册响应消息,其中包括第一中继设备允许使用的一个或多个S-NSSAI以及与第一中继设备允许使用的一个或多个S-NSSAI一一对应的 RSC;获取模块具体用于根据第一中继设备允许使用的一个或多个S-NSSAI,以及与第一中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取N个指示信息。
第八方面,本申请提供了一种注册方法及装置。
在一种可能的设计中,该方法可以包括:中继设备向AMF实体发送注册请求消息,其中包括第一指示信息,所述第一指示信息用于指示AMF实体更新第一网络切片信息,第一网络切片信息用于指示中继设备允许使用的一个或多个S-NSSAI;中继设备接收AMF实体发送的注册响应消息,其中包括第一网络切片信息。在这种方法中,中继设备指示AMF实体更新中继设备允许使用的一个或多个S-NSSAI,AMF实体根据UE允许使用的一个或多个S-NSSAI更新中继设备允许使用的一个或多个S-NSSAI,UE可以在中继设备允许使用的网络切片中建立会话,从而可以提高UE通过中继设备在网络切片内建立会话的成功率。
在一种可能的设计中,在中继设备向AMF实体发送注册请求消息之前,中继设备与用户设备UE建立连接;中继设备接收UE发送的第一信息,第一信息为UE标识或第二网络切片信息,其中,第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI。
在一种可能的设计中,若第一信息为第二网络切片信息,注册请求消息还包括第二网络切片信息。在这种实现方式中,UE直接将UE允许使用的一个或多个S-NSSAI通知中继设备,中继设备将UE允许使用的一个或多个S-NSSAI在注册请求消息中携带给AMF实体,AMF实体可以直接根据消息中的UE允许使用的一个或多个S-NSSAI更新中继设备允许使用的一个或多个S-NSSAI。
在一种可能的设计中,中继设备接收AMF实体发送的注册响应消息之后,向UE发送第一消息,其中包括第一网络切片信息。这样,中继设备将更新后的中继设备允许使用的一个或多个S-NSSAI通知UE,UE就可以在中继设备允许使用的切片中建立会话。
相应的,本申请还提供了一种注册装置,该装置可以实现第八方面所述的注册方法。例如,该装置可以是中继设备或应用于中继设备中的芯片,还可以是其他能够实现上述注册方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第八方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:发送模块和接收模块。其中,发送模块用于向AMF实体发送注册请求消息,其中包括第一指示信息,第一指示信息用于指示AMF实体更新第一网络切片信息,第一网络切片信息用于指示中继设备允许使用的一个或多个S-NSSAI;接收模块用于接收AMF实体发送的注册响应消息,注册响应消息中包括第一网络切片信息。
在一种可能的设计中,该装置还可以包括处理模块,用于在发送模块向AMF实体发送注册请求消息之前,与用户设备UE建立连接;接收模块还用于接收UE发送 的第一信息,第一信息为UE标识或第二网络切片信息,其中第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI。
在一种可能的设计中,若第一信息为第二网络切片信息,注册请求消息还包括第二网络切片信息。
在一种可能的设计中,发送模块还用于,在接收模块接收AMF实体发送的注册响应消息之后,向UE发送第一消息,其中包括第一网络切片信息。
第九方面,本申请提供了一种注册方法及装置。
在一种可能的设计中,该方法可以包括:AMF实体接收中继设备发送的注册请求消息,其中包括第一指示信息,第一指示信息用于指示AMF实体更新第一网络切片信息,第一网络切片信息用于指示中继设备允许使用的一个或多个S-NSSAI;AMF实体向中继设备发送注册响应消息,其中包括第一网络切片信息。在这种方法中,中继设备指示AMF实体更新中继设备允许使用的一个或多个S-NSSAI,AMF实体根据UE允许使用的一个或多个S-NSSAI更新中继设备允许使用的一个或多个S-NSSAI,UE可以在中继设备允许使用的网络切片中建立会话,从而可以提高UE通过中继设备在网络切片内建立会话的成功率。
在一种可能的设计中,AMF实体获取UE允许使用的一个或多个S-NSSAI;AMF实体根据UE允许使用的一个或多个S-NSSAI和中继设备签约使用一个或多个S-NSSAI的交集更新第一网络切片信息。
在另一种可能的设计中,AMF实体获取UE允许使用的一个或多个S-NSSAI;AMF实体向NSSF实体发送第一请求消息,第一请求消息用于请求NSSF实体更新第一网络切片信息,其中包括UE允许使用的一个或多个S-NSSAI、中继设备签约使用一个或多个S-NSSAI以及第二指示信息,第二指示信息用于指示NSSF实体更新第一网络切片信息;AMF实体接收NSSF实体发送的第一响应消息,其中包括第一网络切片信息。
在一种可能的设计中,中继设备发送的注册请求消息中包括UE标识,AMF实体获取UE允许使用的一个或多个S-NSSAI,包括:AMF实体向第一AMF实体发送第二请求消息,其中包括UE标识和第三指示信息,第三指示信息用于指示第一AMF实体获取UE允许使用的一个或多个S-NSSAI;AMF实体接收第一AMF实体发送的第二响应消息,其中包括UE允许使用的一个或多个S-NSSAI。在这种实现方式中,注册请求消息携带的内容较少,只需包括UE标识,而AMF实体需要根据UE标识获取UE允许使用的一个或多个S-NSSAI。
在另一种可能的设计中,中继设备发送的注册请求消息中包括第二网络切片信息,第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI,AMF实体获取UE允许使用的一个或多个S-NSSAI,包括:AMF实体根据第二网络切片信息获取UE允许使用的一个或多个S-NSSAI。在这种实现方式中,AMF实体可以直接从注册请求消息获取UE允许使用的一个或多个S-NSSAI,而注册请求消息携带的内容较多,注册请求消息较大。
相应的,本申请还提供了一种注册装置,该装置可以实现第九方面所述的注册方法。例如,该装置可以是AMF实体或应用于AMF实体中的芯片,还可以是其他能够 实现上述注册方法的装置,其可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
在一种可能的设计中,该装置可以包括处理器和存储器。该处理器被配置为支持该装置执行上述第九方面方法中相应的功能。存储器用于与处理器耦合,其保存该装置必要的程序指令和数据。另外该装置中还可以包括通信接口,用于支持该装置与其他装置之间的通信。该通信接口可以是收发器或收发电路。
在一种可能的设计中,该装置可以包括:发送模块和接收模块。其中,接收模块用于接收中继设备发送的注册请求消息,注册请求消息包括第一指示信息,第一指示信息用于指示AMF实体更新第一网络切片信息,第一网络切片信息用于指示中继设备允许使用的一个或多个S-NSSAI;发送模块用于向中继设备发送注册响应消息,其中包括第一网络切片信息。
在一种可能的设计中,该装置还可以包括获取模块和处理模块,获取模块用于获取用户设备UE允许使用的一个或多个S-NSSAI;处理模块用于根据UE允许使用的一个或多个S-NSSAI和中继设备签约使用一个或多个S-NSSAI的交集更新第一网络切片信息。
在另一种可能的设计中,该装置还可以包括获取模块,获取模块用于获取用户设备UE允许使用的一个或多个S-NSSAI;发送模块还用于向NSSF实体发送第一请求消息,第一请求消息用于请求NSSF实体更新第一网络切片信息,其中包括UE允许使用的一个或多个S-NSSAI、中继设备签约使用一个或多个S-NSSAI以及第二指示信息,第二指示信息用于指示NSSF实体更新第一网络切片信息;接收模块还用于接收NSSF实体发送的第一响应消息,其中包括第一网络切片信息。
在一种可能的设计中,注册请求消息中包括UE标识,发送模块还用于向第一AMF实体发送第二请求消息,其中包括UE标识和第三指示信息,第三指示信息用于指示第一AMF实体获取UE允许使用的一个或多个S-NSSAI;接收模块还用于接收第一AMF实体发送的第二响应消息,其中包括UE允许使用的一个或多个S-NSSAI。
在另一种可能的设计中,注册请求消息包括第二网络切片信息,第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI,获取模块具体用于根据第二网络切片信息获取UE允许使用的一个或多个S-NSSAI。
本申请还提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述任一方面所述的方法。
本申请还提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述任一方面所述的方法。
本申请还提供了一种芯片系统,该芯片系统中包括处理器,还可以包括存储器,用于实现上述任一方面所述的方法。
本申请提供了一种通信系统,包括上述用于实现第一方面所述的方法的装置,上述用于实现第二方面、第五方面、第七方面或第八方面所述的方法的装置,上述用于实现第三方面、第四方面或第六方面所述的方法的装置,以及上述用于实现第九方面所述的方法的装置。
上述提供的任一种装置或计算机存储介质或计算机程序产品或芯片系统或通信系 统均用于执行上文所提供的对应的方法,因此,其所能达到的有益效果可参考上文提供的对应的方法中对应方案的有益效果,此处不再赘述。
附图说明
图1为本申请实施例提供的技术方案所适用的一种系统架构的示意图;
图2为本申请实施例提供的通信设备的硬件结构示意图;
图3为本申请实施例提供的一种会话建立方法的示意图一;
图4为本申请实施例提供的一种会话建立方法的示意图二;
图5为本申请实施例提供的一种中继设备的选择方法的示意图一;
图6为本申请实施例提供的一种中继设备的选择方法的示意图二;
图7为本申请实施例提供的一种注册方法的示意图;
图8为本申请实施例提供的一种装置的结构示意图一;
图9为本申请实施例提供的一种装置的结构示意图二;
图10为本申请实施例提供的一种装置的结构示意图三;
图11为本申请实施例提供的一种装置的结构示意图四;
图12为本申请实施例提供的一种装置的结构示意图五。
具体实施方式
下面结合附图对本申请实施例提供的会话建立方法、中继设备的选择方法和注册方法、设备及系统进行详细描述。
本申请提供的技术方案可以应用于划分了网络切片的各种通信系统,例如,现有通信系统基础上划分网络切片,5G NR系统,未来演进系统或者多种通信融合系统等等。可以包括多种应用场景,例如,机器对机器(Machine to Machine,M2M)、D2M、宏微通信、增强型移动互联网(enhance Mobile BroadBand,eMBB)、超高可靠性与超低时延通信(Ultra Reliable&Low Latency Communication,URLLC)以及海量物联网通信(massive Machine Type Communication,mMTC)等场景,这些场景可以包括但不限于:UE与UE之间的通信场景,网络设备与网络设备之间的通信场景,网络设备与UE之间的通信场景等。本申请实施例提供的技术方案也可以应用于5G通信系统中的UE与UE之间的通信,或网络设备与网络设备之间的通信等场景中。
本申请实施例提供的技术方案可以应用于如图1所示的系统架构中,该通信系统可以包括核心网、接入网设备、中继设备以及UE。
核心网的功能主要是提供用户连接、对用户的管理以及对业务完成承载,作为承载网络提供到外部网络的接口。包括用户的移动性管理、呼叫管理、路由管理、安全性管理等等。以NR系统为例,核心网中的设备可以包括接入与移动控制功能(Access and mobility Management Function,AMF)实体,会话管理功能(Session Management Function,SMF)实体,统一签约数据库管理(Unified Data Management,UDM)实体以及网络切片选择功能(Network Slice Selection Function,NSSF)实体。其中,AMF实体用于为UE提供移动性管理、接入鉴权、安全锚点功能和安全上下文管理功能;SMF实体用于会话管理、用户面选择和控制以及下行数据通知等;UDM实体用于管理签约信息以及进行用户鉴权;NSSF实体用于实现网络切片选择和管理等功能。当然,核心网中还可以包括其他的设备和功能实体,也可以使用其他功能实体代替上述功能 实体提供上述功能,同时也可根据具体需要来配置各个功能实体的数量,上述核心网也可以是未来演进系统或者多种通信融合系统中提供上述功能的设备和系统,本申请实施例对此不进行限定。
接入网设备用于为UE提供接入服务。接入网设备可以是无线接入网(Radio Access Network,RAN)的设备,比如,基站。基站可以包括各种形式的基站,例如:宏基站,微基站(也称为小站),中继站,接入点等。具体来说,基站设备对应一个服务覆盖区域,进入该区域的UE可通过无线信号与基站设备通信,以此来接受基站设备提供的无线接入服务。接入网设备也可以是有线宽带接入网Wireline。接入网设备还可以是能和UE通信的任意设备,比如,接入网设备可以是中继站或接入点等。
接入网设备可以是全球移动通信系统(Global System for Mobile communication,GSM)或码分多址(Code Division Multiple Access,CDMA)网络中的网络设备收发信台(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)中的NB(NodeB),还可以是LTE中的eNB或eNodeB(evolutional NodeB)。接入网设备还可以是云无线接入网络(Cloud Radio Access Network,CRAN)场景下的无线控制器。接入网设备还可以是5G NR系统网络中的网络设备,比如传输点(TRansmission Point,TRP),或未来演进的PLMN网络中的网络设备;还可以是可穿戴设备或车载设备等。
中继设备用于为UE提供接入接入网设备的功能。中继设备可以是有线宽带接入网的CPE或AP,为UE提供WIFI连接或D2D连接的接入方式。中继设备也可以是中继技术中的中继节点或中继UE,对接入网设备的无线信号进行一次或者多次的转发,为远程UE连接接入网提供中继服务。
UE可以通过中继设备接入到接入网设备,也可以直接接入到接入网设备。UE可以是接入终端、UE单元、UE站、移动站、移动台、远方站、远程终端、移动设备、UE终端、终端、无线通信设备、UE代理或UE装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,5G网络中的终端或未来演进的PLMN网络中的终端等。
应注意,图1所示的系统架构仅用于举例,并非用于限制本申请的技术方案。本领域的技术人员应当明白,在具体实现过程中,系统架构中还可以包括其他设备,同时也可根据具体需要来配置网络设备和UE的数量。
可选的,图1中的UE、中继设备或核心网中的设备可以由一个实体设备实现,也可以由多个实体设备共同实现,还可以是一个实体设备内的一个逻辑功能模块,本申请实施例对此不作具体限定。
例如,图1中的UE、中继设备或核心网中的设备可以通过图2中的通信设备来实现。图2所示为本申请实施例提供的通信设备的硬件结构示意图。该通信设备200包括至少一个处理器201,通信线路202,存储器203以及至少一个通信接口204。
处理器201可以是一个通用中央处理器(central processing unit,CPU),微处理器,特定应用集成电路(application-specific integrated circuit,ASIC),或一个或多个 用于控制本申请方案程序执行的集成电路。
通信线路202可包括一通路,在上述组件之间传送信息。
通信接口204,使用任何收发器一类的装置,用于与其他设备或通信网络通信,如以太网,无线接入网(radio access network,RAN),无线局域网(wireless local area networks,WLAN)等。
存储器203可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器203可以是独立存在,通过通信线路202与处理器201相连接。存储器203也可以和处理器201集成在一起。
其中,存储器203用于存储执行本申请方案的计算机执行指令,并由处理器201来控制执行。处理器201用于执行存储器203中存储的计算机执行指令,从而实现本申请下述实施例提供的会话建立方法、中继设备的选择方法和注册方法。
可选的,本申请实施例中的计算机执行指令也可以称之为应用程序代码,本申请实施例对此不作具体限定。
在具体实现中,作为一种实施例,处理器201可以包括一个或多个CPU,例如图2中的CPU0和CPU1。
在具体实现中,作为一种实施例,通信设备200可以包括多个处理器,例如图2中的处理器201和处理器207。这些处理器中的每一个可以是一个单核(single-CPU)处理器,也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中,作为一种实施例,通信设备200还可以包括输出设备205和输入设备206。输出设备205和处理器201通信,可以以多种方式来显示信息。例如,输出设备205可以是液晶显示器(liquid crystal display,LCD),发光二级管(light emitting diode,LED)显示设备,阴极射线管(cathode ray tube,CRT)显示设备,或投影仪(projector)等。输入设备206和处理器201通信,可以以多种方式接收用户的输入。例如,输入设备206可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的通信设备200可以是一个通用设备或者是一个专用设备。在具体实现中,通信设备200可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant,PDA)、移动手机、平板电脑、无线终端设备、嵌入式设备或有图2中类似结构的设备。本申请实施例不限定通信设备200的类型。
下面对本申请中涉及的部分术语进行解释说明,以方便读者理解:
1、网络切片
5G网络将面向不同的应用场景,比如,超高清视频、虚拟现实、大规模物联网、车联网等等,不同的应用场景对网络的移动性、安全性、时延、可靠性,甚至是计费 方式的要求是不一样的,因此,需要将物理网络划分成多个虚拟网络,每个虚拟网络面向不同的应用场景需求。虚拟网络间是逻辑独立的,互不影响。一个用户设备的不同会话建立在不同的网络切片内,不同网络切片的会话需要使用不同的网络资源。
2、S-NSSAI
S-NSSAI用于记载网络切片的辅助信息,一个S-NSSAI标识一个网络切片。
3、DRB
DRB是UE与接入网设备之间的数据承载。如果UE是通过中继设备接入到接入网设备,UE数据的上行传输方向为:UE->中继设备->接入网设备,下行传输方向为接入网设备->中继设备->UE。UE与接入网设备的数据传输需要使用属于中继设备的,在中继设备与接入网设备之间的DRB。
4、本文中的术语“多个”是指两个或两个以上。本文中的术语“第一”和“第二”是用于区别不同的对象,而不是用于描述对象的特定顺序。例如,第一注册请求消息和第二注册请求消息仅仅是为了区分不同的注册请求消息,并不对其先后顺序进行限定。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。
在本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请实施例提供一种会话建立方法,可以应用于图1所示的通信系统。可以实现UE通过中继设备在一个网络切片内建立会话,UE和中继设备共用中继设备的DRB。如图3所示,该方法可以包括S201-S210:
S201、UE和中继设备建立连接。
可选的,UE和中继设备建立无线保真(Wireless Fidelity,WI-FI)连接或D2D连接。
S202、UE向接入网设备发送第一消息。
具体的,UE需要在一个切片内建立会话,则发起会话建立过程。
UE向接入网设备发送第一消息,第一消息中包括第一会话建立请求消息和UE请求使用的S-NSSAI。其中,第一消息可以是UE向接入网设备发送的无线资源控制(Radio Resource Control,RRC)消息,也可以是非接入层(Non-Acess Stratum,NAS)消息。
S203、接入网设备接收UE发送的第一消息。如果与UE建立连接的中继设备在UE请求使用的S-NSSAI内不存在对应的DRB,则执行步骤S204,如果存在,执行步骤S207。
具体的,接入网设备接收到UE发送的第一消息后,将其中的第一会话建立请求消息和UE请求使用的S-NSSAI通过AMF实体转发给SMF实体。SMF实体在该S-NSSAI对应的网络切片中为UE建立会话,并通过AMF实体向接入网设备发送第一会话建立响应消息和该S-NSSAI。接入网设备收到第一会话建立响应消息和该 S-NSSAI后,判断与UE建立连接的中继设备在UE请求使用的S-NSSAI内是否存在对应的DRB。如果不存在,则执行步骤S204,如果存在,执行步骤S207。
S204、接入网设备向中继设备发送第三重配请求消息。
示例性的,第三重配请求消息可以是RRC连接重配请求消息。第三重配请求消息用于指示中继设备建立UE请求使用的S-NSSAI对应的DRB。
S205、中继设备接收接入网设备发送的第三重配请求消息。
具体的,中继设备接收到接入网设备发送的第三重配请求消息后,建立UE请求使用的S-NSSAI对应的DRB。
S206、中继设备向接入网设备发送第三重配响应消息。
具体的,中继设备向接入网设备发送第三重配响应消息,示例性的,第三重配响应消息可以是RRC连接重配响应消息。其中,包括S-NSSAI以及与S-NSSAI对应的DRB配置信息。之后,执行步骤S207。
S207、接入网设备向UE发送第一重配请求消息。
示例性的,第一重配请求消息可以是RRC连接重配请求消息。
第一重配请求消息中包括第一会话建立响应消息和DRB配置信息。其中,DRB配置信息为UE请求使用的S-NSSAI对应的DRB配置信息。
S208、UE接收接入网设备发送的第一重配请求消息。
可选的,UE接收接入网设备发送的第一重配请求消息后,获取到了请求使用的S-NSSAI对应的DRB配置信息,可以在获取到的DRB配置信息对应的DRB上传输信令和/或数据。
S209、接入网设备向中继设备发送第二重配请求消息。
示例性的,第二重配请求消息可以是RRC连接重配请求消息。
第二重配请求消息中包括DRB配置信息和UE的UE标识。其中,DRB配置信息为UE请求使用的S-NSSAI对应的DRB配置信息。
S210、中继设备接收接入网设备发送的重配请求消息。
需要说明的是,中继设备接收的重配请求消息,即为接入网设备向中继设备发送的第二重配请求消息。
可选的,中继设备接收接入网设备发送的第二重配请求消息后,获取到了DRB配置信息和UE的UE标识,可以在该DRB配置信息对应的DRB上传输该UE的信令和/或数据。
需要说明的是,根据实际情况,接入网设备可以先向UE发送第一重配请求消息,再向中继设备发送第二重配请求消息;也可以先向中继设备发送第二重配请求消息,再向UE发送第一重配请求消息;也可以同时向UE发送第一重配请求消息,向中继设备发送第二重配请求消息。本申请不限定S207和S209的先后顺序。
本申请实施例提供的会话建立方法,在UE连接中继设备的情况下,UE请求在一个网络切片内建立会话,UE需要使用中继设备与接入网设备之间的DRB。如果中继设备在该网络切片内不存在对应的DRB,则建立该网络切片对应的DRB。接入网设备为UE选择中继设备的,在UE请求的网络切片内的DRB,为UE传输信令和/或数据。从而实现UE通过中继设备在一个网络切片内建立会话。
本申请实施例还提供一种会话建立方法,可以应用于图1所示的通信系统。可以实现UE通过中继设备在一个网络切片内建立会话,UE共用中继设备在该切片内的会话对应的DRB。如图4所示,该方法可以包括S301-S315:
S301、UE和中继设备建立连接。
可选的,UE和中继设备建立无线保真(Wireless Fidelity,WI-FI)连接或D2D连接。
S302、UE向中继设备发送第一请求消息。
具体的,UE需要在一个切片内建立会话,则发起会话建立过程。
UE向中继设备发送第一请求消息,其中包括UE请求使用的S-NSSAI,第一请求消息用于通知中继设备UE请求在S-NSSAI指示的网络切片内建立会话。示例性的,第一请求消息可以是新会话请求消息。
S303、中继设备接收UE发送的第一请求消息。如果中继设备在UE请求使用的网络切片内没有建立会话,则执行步骤S304,如果已经建立了会话,执行步骤S308。
具体的,中继设备接收UE发送的第一请求消息后,检查中继设备在UE请求使用的网络切片内是否已经建立了会话,如果没有建立会话,则执行步骤S304,如果已经建立了会话,执行步骤S308。
S304、中继设备向接入网设备发送第二消息。
具体的,中继设备发起在UE请求使用的网络切片内建立会话的过程。中继设备向接入网设备发送第二消息,其中,包括会话建立请求消息和UE请求使用的S-NSSAI。示例性的,第二消息可以是中继设备向接入网设备发送的RRC消息。
S305、接入网设备接收中继设备发送的第二消息。
具体的,接入网设备接收到中继设备发送的第二消息后,将其中的会话建立请求消息和UE请求使用的S-NSSAI通过AMF实体转发给SMF实体。SMF实体在该S-NSSAI对应的网络切片中为中继设备建立会话,并通过AMF实体向接入网设备发送会话建立响应消息和该S-NSSAI。接入网设备收到会话建立响应消息后,向中继设备发送第二会话建立响应消息。
S306、接入网设备向中继设备发送第四重配请求消息。
具体的,接入网设备向中继设备发送第四重配请求消息,其中包括第二会话建立响应消息。示例性的,第四重配请求消息可以是接入网设备向中继设备发送的RRC连接重配请求消息。
S307、中继设备接收接入网设备发送的第四重配请求消息。
可选的,中继设备收到接入网设备发送的第四重配请求消息后,获取到第二会话建立响应消息。确定中继设备在UE请求使用的S-NSSAI内建立会话成功。
S308、中继设备向UE发送第一响应消息。
中继设备确定在UE请求使用的S-NSSAI内建立会话成功后,向UE发送第一响应消息;其中包括第一指示信息。第一指示信息用于指示中继设备在UE请求使用的S-NSSAI内建立会话是否成功。示例性的,第一响应消息可以是新会话响应消息。
S309、UE接收中继设备发送的第一响应消息。如果确定中继设备在UE请求使用的S-NSSAI内建立会话成功,则执行步骤310。
S310、UE向接入网设备发送第一消息。
其中,第一消息包括第一会话建立请求消息和UE请求使用的S-NSSAI。其中,第一消息可以是UE向接入网设备发送的RRC消息。
S311、接入网设备接收UE发送的第一消息。
具体的,接入网设备接收到UE发送的第一消息后,将其中的第一会话建立请求消息和UE请求使用的S-NSSAI通过AMF实体转发给SMF实体。SMF实体在该S-NSSAI对应的网络切片中为UE建立会话,并通过AMF实体向接入网设备发送第一会话建立响应消息和该S-NSSAI。
S312、接入网设备向UE发送第一重配请求消息。
接入网设备收到第一会话建立响应消息后,向UE发送第一重配请求消息。示例性的,第一重配请求消息可以是RRC连接重配请求消息。
第一重配请求消息中包括第一会话建立响应消息和DRB配置信息。其中,DRB配置信息为UE请求使用的S-NSSAI对应的DRB配置信息,比如,可以是S304-S307中中继设备在该切片内建立的会话对应的DRB的配置信息。
S313、UE接收接入网设备发送的第一重配请求消息。
可选的,UE接收接入网设备发送的第一重配请求消息后,获取到了请求使用的S-NSSAI对应的DRB配置信息,可以在获取到的DRB配置信息对应的DRB上传输信令和/或数据。
S314、接入网设备向中继设备发送第二重配请求消息。
示例性的,第二重配请求消息可以是RRC连接重配请求消息。
第二重配请求消息中包括DRB配置信息和UE的UE标识。其中,DRB配置信息为UE请求使用的S-NSSAI对应的DRB配置信息。
S315、中继设备接收接入网设备发送的重配请求消息。
需要说明的是,中继设备接收的重配请求消息,即为接入网设备向中继设备发送的第二重配请求消息。
可选的,中继设备接收接入网设备发送的第二重配请求消息后,获取到了DRB配置信息和UE的UE标识,可以在该DRB配置信息对应的DRB上传输该UE的信令和/或数据。
需要说明的是,根据实际情况,接入网设备可以先向UE发送第一重配请求消息,再向中继设备发送第二重配请求消息;也可以先向中继设备发送第二重配请求消息,再向UE发送第一重配请求消息;也可以同时向UE发送第一重配请求消息,向中继设备发送第二重配请求消息。本申请不限定S312和S314的先后顺序。
本申请实施例提供的会话建立方法,在UE连接中继设备的情况下,UE请求在一个网络切片内建立会话,UE需要使用中继设备与接入网设备之间的DRB。如果中继设备在该网络切片内没有建立会话,则在该网络切片建立会话。接入网设备为UE选择中继设备的,在UE请求的网络切片内的DRB,即中继设备在该网络切片内的会话对应的DRB,为UE传输信令和/或数据。从而实现UE通过中继设备在一个网络切片内建立会话。
本申请实施例还提供一种中继设备的选择方法,应用于图1所示的通信系统。可 以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。如图5所示,本申请实施例提供的一种中继设备的选择方法可以包括S401-S405:
S401、UE获取M个第一指示信息。
具体的,UE获取UE允许使用的网络切片。可选的,UE可以获取M个第一指示信息。其中,M个第一指示信息中的每个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数;UE即获取到允许使用的M个网络切片。
可选的,在实际实现中,一个第一指示信息也可以用于指示UE允许使用的多个网络切片。本申请实施例对此不进行限定。
可选的,第一指示信息为中继服务码(Relay Service Code,RSC)。
可选的,UE获取M个第一指示信息可以包括以下两种方式。
方式一,该方式可以包括S401a-S401d:
S401a、UE向AMF实体发送第一注册请求消息。
第一注册请求消息中包括UE请求使用的一个或多个S-NSSAI。
可选的,UE预先配置有第一信息。第一信息包括S个S-NSSAI,以及与S个S-NSSAI一一对应的RSC;其中,S为大于或等于M的正整数。
在本申请的一个示例中,第一信息可以包括如表1所示的内容:
表1
UE配置的S-NSSAI RSC
S-NSSAI-1 1
S-NSSAI-2 2
S-NSSAI-3 3
S-NSSAI-4 4
S-NSSAI-5 5
在一种实现方式中,UE根据需要从配置的S个S-NSSAI中选择一个或多个作为UE请求使用的S-NSSAI。比如,UE请求使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-2、S-NSSAI-3和S-NSSAI-4。
S401b、AMF实体接收第一注册请求消息。
AMF实体从第一注册请求消息中获取UE请求使用的一个或多个S-NSSAI,并向UDM实体请求签约。UDM实体根据UE签约判断UE可以通过中继设备接入网络,则通知AMF实体UE签约使用的一个或多个S-NSSAI。AMF实体从UDM实体获取UE签约使用的一个或多个S-NSSAI。
可选的,AMF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI发送给NSSF实体,NSSF实体根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI。比如,NSSF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI的交集确定为UE允许使用的一个或多个S-NSSAI。比如,UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4。AMF实体从NSSF实体获取UE允许使用的一个或多个S-NSSAI。
可选的,AMF实体也可以根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI。
S401c、AMF实体向UE发送第一注册响应消息。
具体的,AMF实体向UE发送第一注册响应消息,其中包括UE允许使用的一个或多个S-NSSAI。
S401d、UE接收第一注册响应消息。
具体的,UE从第一注册响应消息中获取UE允许使用的一个或多个S-NSSAI。
UE根据UE允许使用的一个或多个S-NSSAI查询第一信息,获取M个第一指示信息。
示例性的,UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4,第一信息包括如表1所示的内容,UE在表1中查询S-NSSAI-1、S-NSSAI-3和S-NSSAI-4对应的RSC分别为1、3、4,即获取了3个RSC。
方式二,该方式可以包括S4011-S4014:
S4011、UE向AMF实体发送第二注册请求消息。
第二注册请求消息中包括UE请求使用的一个或多个S-NSSAI。
可选的,UE预先配置有第二信息。第二信息包括S个S-NSSAI,其中,S为大于或等于M的正整数。
在本申请的一个示例中,第二信息可以包括如表2所示的内容:
表2
UE配置的S-NSSAI
S-NSSAI-1
S-NSSAI-2
S-NSSAI-3
S-NSSAI-4
S-NSSAI-5
在一种实现方式中,UE根据需要从配置的S个S-NSSAI中选择一个或多个作为UE请求使用的S-NSSAI。比如,UE请求使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-2、S-NSSAI-3和S-NSSAI-4。
S4012、AMF实体接收第二注册请求消息。
AMF实体从第二注册请求消息中获取UE请求使用的一个或多个S-NSSAI,并根据UE请求使用的一个或多个S-NSSAI获取UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC。
可选的,AMF实体获取UE允许使用的S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC的方式可以包括:
(一)UDM实体确定RSC。
AMF实体向UDM实体请求签约。UDM实体根据UE签约判断UE可以通过中继设备接入网络,则通知AMF实体UE签约使用的一个或多个S-NSSAI以及与UE签约使用的一个或多个S-NSSAI一一对应的RSC。比如,UE签约使用的一个或多个S-NSSAI以及与UE签约使用的一个或多个S-NSSAI一一对应的RSC如表3所示。
AMF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个 S-NSSAI发送给NSSF实体,NSSF实体根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI。比如,NSSF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI的交集确定为UE允许使用的一个或多个S-NSSAI。比如,NSSF实体确定UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4。
NSSF实体将UE允许使用的一个或多个S-NSSAI发送给AMF实体。
表3
UE签约使用S-NSSAI RSC
S-NSSAI-1 1
S-NSSAI-3 3
S-NSSAI-4 4
S-NSSAI-5 5
AMF实体获取到UE允许使用的一个或多个S-NSSAI,并根据UE签约使用的一个或多个S-NSSAI以及与UE签约使用的一个或多个S-NSSAI一一对应的RSC,获取到与UE允许使用的一个或多个S-NSSAI一一对应的RSC。
示例性的,UE在表3中查询S-NSSAI-1、S-NSSAI-3和S-NSSAI-4分别对应的RSC,获取到S-NSSAI-1、S-NSSAI-3和S-NSSAI-4对应的RSC分别为1、3、4。
(二)NSSF实体确定RSC。
AMF实体向UDM实体请求签约。UDM实体通知AMF实体UE签约使用的一个或多个S-NSSAI。
AMF实体根据UE签约判断UE可以通过中继设备接入网络,则将UE请求使用的一个或多个S-NSSAI、UE签约使用的一个或多个S-NSSAI以及RSC请求指示信息发送给NSSF实体。
NSSF实体根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI,并确定与UE允许使用的一个或多个S-NSSAI一一对应的RSC。比如,NSSF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI的交集确定为UE允许使用的一个或多个S-NSSAI。比如,NSSF实体确定UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4,并确定S-NSSAI-1、S-NSSAI-3和S-NSSAI-4对应的RSC分别为1、3、4。
NSSF实体将UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC发送给AMF实体。AMF实体获取到UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC。
(三)AMF实体确定RSC。
AMF实体向UDM实体请求签约。UDM实体根据UE签约判断UE可以通过中继设备接入网络,则通知AMF实体UE签约使用的一个或多个S-NSSAI。
AMF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI发送给NSSF实体。
NSSF实体根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多 个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI。比如,NSSF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI的交集确定为UE允许使用的一个或多个S-NSSAI。比如,NSSF实体确定UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4。
NSSF实体将UE允许使用的一个或多个S-NSSAI发送给AMF实体。
AMF实体根据UE签约判断UE可以通过中继设备接入网络,则确定与UE允许使用的一个或多个S-NSSAI一一对应的RSC。示例性的,AMF实体确定S-NSSAI-1、S-NSSAI-3和S-NSSAI-4对应的RSC分别为1、3、4。
AMF实体则获取到UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC。
S4013、AMF实体向UE发送第二注册响应消息。
具体的,AMF实体获取到UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC后,向UE发送第二注册响应消息。其中第二注册响应消息包括UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC。
S4014、UE接收第二注册响应消息。
具体的,UE从第二注册响应消息中获取UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,即获取了M个第一指示信息。
S402、L个中继设备获取各自的N个指示信息。
其中,一个指示信息用于指示一个中继设备允许使用的一个网络切片,L为大于或等于1的正整数,N为大于或等于1的正整数。可选的,在实际实现中,一个指示信息也可以用于指示一个中继设备允许使用的多个网络切片。本申请实施例对此不进行限定。
可选的,指示信息为RSC。
每个中继设备获取N个指示信息的方法可以参考S401中UE获取M个第一指示信息的方法,此处不再赘述。
可选的,在具体实现中,中继设备向AMF实体发送的注册请求消息中可以不包括中继设备请求使用的S-NSSAI。NSSF实体可以直接将中继设备签约使用的一个或多个S-NSSAI确定为中继设备允许使用的一个或多个S-NSSAI。
需要说明的是,S402的AMF实体与S401的AMF实体可以为同一个,也可以不同,可以根据实际情况决定,本申请对此不进行限定。
还需要说明的是,在S401中,UE获取M个第一指示信息可以包括两种方式,对应的,每个中继设备获取N个指示信息的方法也可以包括两种方式。在具体实现中,UE获取M个第一指示信息的方式与每个中继设备获取N个指示信息的方式可以相同也可以不同,本申请对此不进行限定。
S403、L个中继设备分别向UE发送第一消息。
具体的,L个中继设备分别向UE发送第一消息,一个中继设备发送的第一消息中包括N个第二指示信息。需要说明的是,N个第二指示信息即为S402中N个指示 信息。示例性的,第一消息可以为发现消息。
可选的,中继设备发送第一消息时以广播的方式向发现范围内的所有UE发送。
S404、UE接收L个中继设备发送的第一消息。
具体的,UE接收L个中继设备发送的第一消息,获取到每个中继设备的N个第二指示信息。如果中继设备的N个第二指示信息指示的网络切片包含UE的M个第一指示信息指示的网络切片中至少一个,即中继设备允许使用的网络切片包含至少一个UE允许使用的网络切片,则UE将这个中继设备确定为第一中继设备。可选的,在一种实现方式中,如果中继设备的N个第二指示信息指示的网络切片完全包含UE的M个第一指示信息指示的网络切片,则UE将这个中继设备确定为第一中继设备。这样,可以保证UE接入的中继设备完全支持UE需要使用的网络切片,提高UE通过中继设备建立会话的成功率。
可选的,UE确定出的第一中继设备可以为至少一个。
UE在至少一个第一中继设备中选择任意一个作为目标中继设备。
S405、UE与目标中继设备建立连接。
可选的,UE和目标中继设备建立WI-FI连接或D2D连接。
本申请实施例提供的中继设备的选择方法,每个UE和每个中继设备分别通过注册过程获取自身的允许使用的网络切片之后,每个中继设备通过消息将本中继设备允许使用的网络切片广播通知发现范围内的UE。UE选择一个目标中继设备建立连接,该目标中继设备允许使用的网络切片包含UE允许使用的至少一个网络切片。从而可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。
本申请实施例还提供一种中继设备的选择方法,应用于图1所示的通信系统。可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。如图6所示,本申请实施例提供的一种中继设备的选择方法可以包括S501-S505:
S501、UE获取M个第一指示信息。
M个第一指示信息中的每个第一指示信息用于指示UE允许使用的一个网络切片,M为大于或等于1的正整数。可选的,在实际实现中,一个第一指示信息也可以用于指示UE允许使用的多个网络切片。本申请实施例对此不进行限定。
可选的,第一指示信息为RSC。
具体的,UE获取M个第一指示信息的方法可参考S401,此处不再赘述。
S502、第一中继设备获取N个指示信息。
其中,一个指示信息用于指示第一中继设备允许使用的一个网络切片,N为大于或等于1的正整数。可选的,在实际实现中,一个指示信息也可以用于指示第一中继设备允许使用的多个网络切片。本申请实施例对此不进行限定。
可选的,指示信息为RSC。
具体的,第一中继设备获取N个指示信息的方法与上一实施例中每个中继设备获取N个指示信息的方法相同,可参考S402,此处不再赘述。
可选的,第一中继设备可以是在UE发现范围内的任意一个中继设备。
还需要说明的是,在S501中,UE获取M个第一指示信息可以包括两种方式,对应的,S502中第一中继设备获取N个指示信息的方法也可以包括两种方式。在具体实现中,UE获取M个第一指示信息的方式与第一中继设备获取N个指示信息的方式可以相同也可以不同,本申请对此不进行限定。
S503、第一中继设备向UE发送第一消息。
具体的,第一消息中包括N个第二指示信息。需要说明的是,N个第二指示信息即为S502中N个指示信息。示例性的,第一消息可以为发现消息。
S504、UE接收第一中继设备发送的第一消息。
具体的,UE接收第一中继设备发送的第一消息,获取到第一中继设备的N个第二指示信息。如果第一中继设备的N个第二指示信息指示的网络切片包括至少一个UE的M个第一指示信息指示的网络切片,即第一中继设备允许使用的网络切片包括至少一个UE允许使用的网络切片,则UE将第一中继设备确定为目标中继设备。可选的,在一种实现方式中,如果第一中继设备的N个第二指示信息指示的网络切片完全包含UE的M个第一指示信息指示的网络切片,则UE将第一中继设备确定为目标中继设备。这样,可以保证UE接入的中继设备完全支持UE需要使用的网络切片,提高UE通过中继设备建立会话的成功率。
S505、UE与目标中继设备建立连接。
可选的,UE和目标中继设备建立WI-FI连接或D2D连接。
本申请实施例提供的中继设备的选择方法,UE和中继设备分别通过注册过程获取自身的允许使用的网络切片之后,第一中继设备通过第一消息将第一中继设备允许使用的网络切片通知UE。如果第一中继设备允许使用的网络切片包括至少一个UE允许使用的网络切片,则UE确定第一中继设备为目标中继设备,与其建立连接。通过该中继设备的选择方法,可以提高UE接入的中继设备支持UE需要使用的网络切片的几率,提高UE通过中继设备在网络切片内建立会话的成功率。
本申请实施例还提供一种注册方法,应用于图1所示的通信系统。中继设备根据UE允许使用的网络切片更新中继设备允许使用的网络切片,UE可以在中继设备允许使用的网络切片中建立会话,从而可以提高UE通过中继设备在网络切片内建立会话的成功率。如图7所示,该方法可以包括S601-S611:
S601、UE进行注册。
具体的,UE在网络中进行注册,可以通过注册获取UE允许使用的网络切片。
在一种实现方式中,UE进行注册的过程可以包括S6011-S6014:
S6011、UE向AMF实体发送第一注册消息。
第一注册消息中包括UE请求使用的一个或多个S-NSSAI。
可选的,UE预先配置有S-NSSAI配置信息。在本申请的一个示例中,S-NSSAI配置信息可以包括如表4所示的内容。
在一种实现方式中,UE根据需要从S-NSSAI配置信息中选择一个或多个作为UE请求使用的S-NSSAI。比如,UE请求使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-2、S-NSSAI-3和S-NSSAI-4。
表4
S-NSSAI配置信息
S-NSSAI-1
S-NSSAI-2
S-NSSAI-3
S-NSSAI-4
S-NSSAI-5
S6012、AMF实体接收第一注册消息。
AMF实体从第一注册消息中获取UE请求使用的一个或多个S-NSSAI,并向UDM实体请求签约。UDM实体根据UE签约判断UE可以通过中继设备接入网络,则通知AMF实体UE签约使用的一个或多个S-NSSAI。AMF实体从UDM实体获取UE签约使用的一个或多个S-NSSAI。
可选的,AMF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI发送给NSSF实体,NSSF实体根据UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI确定出UE允许使用的一个或多个S-NSSAI。比如,NSSF实体将UE请求使用的一个或多个S-NSSAI以及UE签约使用的一个或多个S-NSSAI的交集确定为UE允许使用的一个或多个S-NSSAI。比如,UE允许使用的S-NSSAI包括S-NSSAI-1、S-NSSAI-3和S-NSSAI-4。
AMF实体从NSSF实体获取UE允许使用的一个或多个S-NSSAI。
S6013、AMF实体向UE发送第二注册消息。
具体的,AMF实体向UE发送第二注册消息,其中包括UE允许使用的一个或多个S-NSSAI。
S6014、UE接收第二注册消息。
UE接收到第二注册消息,并从第二注册消息中获取到UE允许使用的一个或多个S-NSSAI,完成注册过程。
S602、中继设备进行注册。
具体的,中继设备在网络中进行注册,可以通过注册获取中继设备允许使用的网络切片。
在一种实现方式中,中继设备进行注册的过程可以包括S6021-S6024:
S6021、中继设备向AMF实体发送第三注册消息。
第三注册消息用于请求注册。
需要说明的是,S602的AMF实体与S601的AMF实体可以是同一个,也可以不同,可以根据实际情况确定,本申请对此不进行限定。
S6022、AMF实体接收第三注册消息。
AMF实体向UDM实体请求签约。UDM实体通知AMF实体中继设备签约使用的一个或多个S-NSSAI。
可选的,AMF实体将中继设备签约使用的一个或多个S-NSSAI发送给NSSF实体,NSSF实体根据中继设备签约使用的一个或多个S-NSSAI确定出中继设备允许使用的一个或多个S-NSSAI。比如,NSSF实体从中继设备签约使用的一个或多个S-NSSAI中默认选择一个或多个,确定为中继设备允许使用的一个或多个S-NSSAI。
AMF实体从NSSF实体获取中继设备允许使用的一个或多个S-NSSAI。
S6023、AMF实体向中继设备发送第四注册消息。
具体的,AMF实体向中继设备发送第四注册消息,其中包括中继设备允许使用的一个或多个S-NSSAI。
S6024、中继设备接收第四注册消息。
中继设备接收到第四注册消息,并从第四注册消息中获取到中继设备允许使用的一个或多个S-NSSAI,完成注册过程。
S603、UE与中继设备建立连接。
可选的,UE与中继设备互相发现并建立连接。可选的,UE与中继设备建立WI-FI连接或D2D连接。
可选的,中继设备可以通过发现消息获取UE的UE标识,比如全球唯一临时UE标识(Globally Unique Temporary UE Identity,GUTI)。可选的,发现消息中也可以不包括UE标识。
S604、UE向中继设备发送第一信息。
可选的,UE可以通过第二消息向中继设备发送第一信息。可选的,第一信息为UE标识或第二网络切片信息,其中,第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI。示例性的,第二消息可以是信息更新消息。
可选的,如果在S603,发现消息中包括UE标识,UE也可以不通过第二消息向中继设备发送第一信息,中继设备可以通过发现消息获取第一信息。
S605、中继设备接收第一信息。
具体的,中继设备获取到UE标识或第二网络切片信息。
在一种实现方式中,第一信息为UE标识,比如GUTI。示例性的,信息更新消息中包括GUTI。
在一种实现方式中,第一信息为第二网络切片信息,比如UE允许使用的一个或多个S-NSSAI。示例性的,信息更新消息中包括UE允许使用的一个或多个S-NSSAI以及GUTI。
S606、中继设备向AMF实体发送注册请求消息。
具体的,中继设备向AMF实体发送的注册请求消息中包括第一信息和第一指示信息。其中,第一指示信息用于指示AMF实体更新第一网络切片信息,所述第一网络切片信息用于指示中继设备允许使用的一个或多个S-NSSAI。
S607、AMF实体接收中继设备发送的注册请求消息。
AMF实体接收到注册请求消息后,根据指示更新第一网络切片信息。
可选的,AMF实体更新第一网络切片信息的方式可以包括两种:AMF实体更新第一网络切片信息或者NSSF实体更新第一网络切片信息。
在一种实现方式中,AMF实体更新第一网络切片信息,该方法可以包括S6071-S6072:
S6071、AMF实体获取UE允许使用的一个或多个S-NSSAI。
可选的,AMF实体获取UE允许使用的一个或多个S-NSSAI的方法可以包括以下两种:
方式一,第一信息为UE标识。
AMF实体向第一AMF实体发送第二请求消息,其中包括UE标识和第三指示信息,第三指示信息用于指示第一AMF实体获取UE允许使用的一个或多个S-NSSAI。示例性的,第二请求消息可以是上下文传输请求消息。
其中,第一AMF实体是保存UE上下文信息的AMF实体;可选的,第一AMF实体和上文中的AMF实体可以是同一个,也可以不是同一个。
第一AMF实体根据UE标识获取到UE允许使用的一个或多个S-NSSAI。示例性的,第一AMF实体根据UE标识找到保存的UE上下文,从UE上下文中读取UE允许使用的一个或多个S-NSSAI。
第一AMF实体向AMF实体发送第二响应消息,其中包括UE标识和UE允许使用的一个或多个S-NSSAI。示例性的,第二响应消息可以是上下文传输响应消息。
AMF实体接收第一AMF实体发送的第二响应消息,获取到UE允许使用的一个或多个S-NSSAI。
方式二,第一信息为第二网络切片信息。
AMF实体从中继设备发送的注册请求消息中获取第一信息,第一信息为第二网络切片信息,其中,第二网络切片信息用于指示UE允许使用的一个或多个S-NSSAI;AMF实体根据第二网络切片信息获取UE允许使用的一个或多个S-NSSAI。
S6072、AMF实体根据UE允许使用的一个或多个S-NSSAI和中继设备签约使用一个或多个S-NSSAI的交集更新所述第一网络切片信息。
具体的,AMF实体获取中继设备签约使用一个或多个S-NSSAI,示例性的,AMF实体向UDM实体请求签约。UDM实体通知AMF实体中继设备签约使用的一个或多个S-NSSAI。
AMF实体将UE允许使用的一个或多个S-NSSAI与中继设备签约使用一个或多个S-NSSAI的交集加入到第一网络切片信息。
示例性的,中继设备允许使用的网络切片为S-NSSAI-1、S-NSSAI-2和S-NSSAI-3对应的网络切片,即第一网络切片信息包括S-NSSAI-1、S-NSSAI-2和S-NSSAI-3。
AMF实体获取到UE允许使用的网络切片为S-NSSAI-2、S-NSSAI-3和S-NSSAI-4对应的网络切片,中继设备签约使用的网络切片为S-NSSAI-3、S-NSSAI-4和S-NSSAI-5对应的网络切片,UE允许使用的网络切片和中继设备签约使用的网络切片的交集为S-NSSAI-3和S-NSSAI-4对应的网络切片。
AMF实体将S-NSSAI-3和S-NSSAI-4更新至中继设备允许使用的S-NSSAI-1、S-NSSAI-2和S-NSSAI-3,得到更新后的第一网络切片信息S-NSSAI-1、S-NSSAI-2、S-NSSAI-3和S-NSSAI-4,即更新后的中继设备签约使用的网络切片为S-NSSAI-1、S-NSSAI-2、S-NSSAI-3和S-NSSAI-4对应的网络切片。
在一种实现方式中,NSSF实体更新第一网络切片信息,该方法可以包括S6073-S6077:
S6073、AMF实体获取UE允许使用的一个或多个S-NSSAI。
具体的,AMF实体获取UE允许使用的一个或多个S-NSSAI的方法可参考S6071,此处不再赘述。
S6074、AMF实体向NSSF实体发送第一请求消息。
具体的,AMF实体获取中继设备签约使用一个或多个S-NSSAI,示例性的,AMF实体向UDM实体请求签约。UDM实体通知AMF实体中继设备签约使用的一个或多个S-NSSAI。
AMF实体向NSSF实体发送第一请求消息,第一请求消息用于请求NSSF实体更新第一网络切片信息,其中包括UE允许使用的一个或多个S-NSSAI、中继设备签约使用一个或多个S-NSSAI以及第二指示信息,第二指示信息用于指示NSSF实体更新第一网络切片信息。
S6075、NSSF实体接收AMF实体发送的第一请求消息。
NSSF实体根据UE允许使用的一个或多个S-NSSAI和中继设备签约使用一个或多个S-NSSAI的交集更新第一网络切片信息。
具体的,NSSF实体将UE允许使用的一个或多个S-NSSAI与中继设备签约使用一个或多个S-NSSAI的交集加入到第一网络切片信息。
NSSF实体更新第一网络切片信息的具体方法与AMF实体更新第一网络切片信息的具体方法相同,此处不再赘述。
S6076、NSSF实体向AMF实体发送第一响应消息。
第一响应消息中包括更新后的第一网络切片信息。
S6077、AMF实体接收第一响应消息。
具体的,AMF实体接收第一响应消息,获取更新后的第一网络切片信息。
S608、AMF实体向中继设备发送注册响应消息。
其中,注册响应消息包括第一网络切片信息。
S609、中继设备接收注册响应消息。
S610、中继设备向UE发送第一消息。
其中,第一消息包括第一网络切片信息。示例性的,第一消息可以为信息更新指示消息。
S611、UE接收第一消息。
UE接收到第一消息,可以从第一消息中获取第一网络切片信息,即获取到中继设备允许使用的网络切片。UE需要建立会话时,可以在中继设备允许使用的网络切片中建立会话,提高会话建立的成功率。
本申请实施例提供的注册方法,UE和中继设备分别通过注册过程获取自身的允许使用的网络切片,UE与任意一个中继设备建立连接。中继设备根据UE允许使用的网络切片和中继设备的签约使用网络切片更新中继设备的允许使用的网络切片,并通知UE。UE可以在中继设备允许使用的网络切片中建立会话,从而可以提高UE通过中继设备在网络切片内建立会话的成功率。
上述主要从网络侧设备、中继设备和用户设备交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是,网络侧设备、中继设备和用户设备为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件 驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对网络侧设备、中继设备和用户设备进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
图8是本申请实施例提供的装置800的逻辑结构示意图,装置800可以是接入网设备,能够实现本申请实施例提供的方法中接入网设备的功能;装置800也可以是能够支持接入网设备实现本申请实施例提供的方法中接入网设备的功能的装置。装置800可以是硬件结构、软件模块、或硬件结构加软件模块。如图8所示,装置800包括接收模块801和发送模块802。接收模块801可以用于执行图3中的S203,或者执行图4中的S305、S311和/或S314,和/或执行本申请中描述的其他步骤。发送模块802可以用于执行图3中的S204、S207和/或S209,或者执行图4中的S306和/或S312,和/或执行本申请中描述的其他步骤。
图9是本申请实施例提供的装置900的逻辑结构示意图,装置900可以是中继设备,能够实现本申请实施例提供的方法中中继设备的功能;装置900也可以是能够支持中继设备实现本申请实施例提供的方法中中继设备的功能的装置。装置900可以是硬件结构、软件模块、或硬件结构加软件模块。装置900也可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。如图9所示,装置900包括接收模块901、发送模块902、获取模块903和处理模块904。接收模块901可以用于执行图3中的S205和/或S210,或者用于执行图4中的S303、S307和/或S315,或者用于执行图7中的S6024、S605和/或S609,和/或执行本申请中描述的其他步骤。发送模块802可以用于执行图3中的S206,或者用于执行图4中的S304和/或S308,或者用于执行图5中的S403,或者用于执行图6中的S503,或者用于执行图7中的S6021、S606和/或S610,和/或执行本申请中描述的其他步骤。获取模块903可以用于执行图5中的S402和/或S205,或者用于执行图6中的S502,和/或执行本申请中描述的其他步骤。处理模块904可以用于执行图3中的S201,或者用于执行图4中的S301,或者用于执行图5中的S405,或者用于执行图6中的S505,或者用于执行图7中的S602和/或S603,和/或执行本申请中描述的其他步骤。
图10是本申请实施例提供的装置1000的逻辑结构示意图,装置1000可以是用户设备,能够实现本申请实施例提供的方法中用户设备的功能;装置1000也可以是能够支持用户设备实现本申请实施例提供的方法中用户设备的功能的装置。装置1000可以是硬件结构、软件模块、或硬件结构加软件模块。装置1000也可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。如图10所示,装置1000包括接收模块1001、发送模块1002、获取模块1003和处理模块1004。接收模块1001可以用于执行图3中的S208,或者用于执行图4中的S309和/ 或S313,或者用于执行图5中的S401d、S4014和/或S404,或者用于执行图6中的S504,或者用于执行图7中的S6014和/或S611,和/或执行本申请中描述的其他步骤。发送模块1002可以用于执行图3中的S202,或者用于执行图4中的S302和/或S310,或者用于执行图5中的S401a和/或S4011,或者用于执行图7中的S6011和/或S604,和/或执行本申请中描述的其他步骤。获取模块1003可以用于执行图5中的S401,或者用于执行图6中的S501,和/或执行本申请中描述的其他步骤。处理模块1004可以用于执行图3中的S201,或者用于执行图4中的S301,或者用于执行图5中的S405,或者用于执行图6中的S505,或者用于执行图7中的S601和/或S603,和/或执行本申请中描述的其他步骤。
图11是本申请实施例提供的装置1100的逻辑结构示意图,装置1100可以是AMF实体,能够实现本申请实施例提供的方法中AMF实体的功能;装置1100也可以是能够支持AMF实体实现本申请实施例提供的方法中AMF实体的功能的装置。装置1100可以是硬件结构、软件模块、或硬件结构加软件模块。装置1100也可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。如图11所示,装置1100包括接收模块1101、发送模块1102、获取模块1103和处理模块1104。接收模块1101可以用于执行图5中的S401b和/或S4012,或者用于执行图7中的S6012、S6022、S607和/或S6077,和/或执行本申请中描述的其他步骤。发送模块1102可以用于执行图5中的S401c和/或S4013,或者用于执行图7中的S6013、S6023、S6074和/或S608,和/或执行本申请中描述的其他步骤。获取模块1103可以用于执行图7中的S6071和/或S6073,和/或执行本申请中描述的其他步骤。处理模块1104可以用于执行图7中的S6072,和/或执行本申请中描述的其他步骤。
图12是本申请实施例提供的装置1200的逻辑结构示意图,装置1200可以是NSSF实体,能够实现本申请实施例提供的方法中NSSF实体的功能;装置1200也可以是能够支持NSSF实体实现本申请实施例提供的方法中NSSF实体的功能的装置。装置1200可以是硬件结构、软件模块、或硬件结构加软件模块。装置1200也可以由芯片系统实现。本申请实施例中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。如图12所示,装置1200包括接收模块1201和发送模块1202。接收模块1201可以用于执行图7中的S6075,和/或执行本申请中描述的其他步骤。发送模块1202可以用于执行图7中的S6076,和/或执行本申请中描述的其他步骤。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
在本实施例中,装置800、装置900、装置1000、装置1100或装置1200可以以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC,电路,执行一个或多个软件或固件程序的处理器和存储设备,集成逻辑电路,和/或其他可以提供上述功能的器件。
在一个简单的实施例中,本领域的技术人员可以想到装置800、装置900、装置1000、装置1100或装置1200可以采用图2所示的形式。
比如,图2中的处理器201可以通过调用存储器203中存储的计算机执行指令,使得装置800、装置900、装置1000、装置1100或装置1200执行上述方法实施例中 的会话建立方法、中继设备的选择方法和注册方法。
具体的,图8中的接收模块801和发送模块802,图9中的接收模块901、发送模块902、获取模块903和处理模块904,图10中的接收模块1001、发送模块1002、获取模块1003和处理模块1004,图11中的接收模块1101、发送模块1102、获取模块1103和处理模块1104,或图12中的接收模块1201和发送模块1202的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现。或者,图9中的获取模块903和处理模块904,图10中的获取模块1003和处理模块1004,或图11中获取模块1103和处理模块1104的功能/实现过程可以通过图2中的处理器201调用存储器203中存储的计算机执行指令来实现,图8中的接收模块801和发送模块802,图9中的接收模块901和发送模块902,图10中的接收模块1001和发送模块1002,图11中的接收模块1101和发送模块1102,或图12中的接收模块1201和发送模块1202的功能/实现过程可以通过图2中的通信接口204来实现。
可选的,当装置800、装置900、装置1000、装置1100或装置1200是芯片时,则图8中的接收模块801和发送模块802,图9中的接收模块901和发送模块902,图10中的接收模块1001和发送模块1002,图11中的接收模块1101和发送模块1102,或图12中的接收模块1201和发送模块1202的功能/实现过程还可以通过管脚或电路等来实现。可选地,当装置800、装置900、装置1000、装置1100或装置1200是芯片时,存储器203可以为芯片内的存储单元,如寄存器、缓存等。当然,当装置800、装置900、装置1000、装置1100或装置1200是终端时,存储器203可以是终端内的位于芯片外部的存储单元,本申请实施例对此不作具体限定。
由于本申请实施例提供的装置可用于执行上述会话建立方法、中继设备的选择方法和注册方法,因此其所能获得的技术效果可参考上述方法实施例,在此不再赘述。
本领域普通技术人员可知,上述方法中的全部或部分步骤可以通过程序指令相关的硬件完成,该程序可以存储于一计算机可读存储介质中,该计算机可读存储介质如ROM、RAM和光盘等。
本申请实施例还提供一种存储介质,该存储介质可以包括存储器203。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例,此处不再赘述。
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。当使用软件程序实现时,可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请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、网络设备、用户设备、或者其他可编程装置。所述计算机指令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,所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(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以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,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。
尽管在此结合各实施例对本申请进行了描述,然而,在实施所要求保护的本申请过程中,本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书,可理解并实现所述公开实施例的其他变化。在权利要求中,“包括”(comprising)一词不排除其他组成部分或步骤,“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施,但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述,显而易见的,在不脱离本申请的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明,且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (47)

  1. 一种会话建立方法,其特征在于,包括:
    接入网设备接收用户设备UE发送的第一消息,所述第一消息包括第一会话建立请求消息和所述UE请求使用的单一网络切片选择辅助信息S-NSSAI;
    所述接入网设备向所述UE发送第一重配请求消息,所述第一重配请求消息包括第一会话建立响应消息和数据资源承载DRB配置信息,所述DRB配置信息为所述S-NSSAI对应的DRB的信息;
    所述接入网设备向中继设备发送第二重配请求消息,所述第二重配请求消息包括所述DRB配置信息和所述UE的UE标识。
  2. 根据权利要求1所述的会话建立方法,其特征在于,在所述接入网设备向所述UE发送第一重配请求消息之前,所述方法还包括:
    所述接入网设备向所述中继设备发送第三重配请求消息,所述第三重配请求消息用于指示所述中继设备建立所述UE请求使用的S-NSSAI对应的DRB。
  3. 根据权利要求1所述的会话建立方法,其特征在于,在所述接入网设备接收用户设备UE发送的第一消息之前,所述方法还包括:
    所述接入网设备接收中继设备发送的第二消息,所述第二消息包括第二会话建立请求消息和所述UE请求使用的S-NSSAI;
    所述接入网设备向所述中继设备发送第四重配请求消息,所述第四重配请求消息包括第二会话建立响应消息。
  4. 一种会话建立方法,其特征在于,包括:
    中继设备接收接入网设备发送的重配请求消息,所述重配请求消息包括数据资源承载DRB配置信息和用户设备UE的UE标识,所述DRB配置信息为所述UE请求使用的单一网络切片选择辅助信息S-NSSAI对应的DRB的信息;
    所述中继设备在所述DRB配置信息对应的DRB上传输所述UE的信令和/或数据。
  5. 根据权利要求4所述的会话建立方法,其特征在于,在所述中继设备接收接入网设备发送的重配请求消息之前,所述方法还包括:
    所述中继设备接收所述接入网设备发送的第三重配请求消息,所述第三重配请求消息用于指示所述中继设备建立所述UE请求使用的S-NSSAI对应的DRB。
  6. 根据权利要求4所述的会话建立方法,其特征在于,在所述中继设备接收接入网设备发送的重配请求消息之前,所述方法还包括:
    所述中继设备接收所述UE发送的第一请求消息,所述第一请求消息包括所述UE请求使用的S-NSSAI;
    所述中继设备向所述UE发送第一响应消息,所述第一响应消息包括第一指示信息,所述第一指示信息用于指示所述中继设备在所述S-NSSAI内建立会话成功。
  7. 根据权利要求6所述的会话建立方法,其特征在于,所述中继设备向所述UE发送第一响应消息之前,所述方法还包括:
    如果所述中继设备确定所述中继设备在所述UE请求使用的S-NSSAI内没有建立会话,则向所述接入网设备发送第二消息,所述第二消息包括会话建立请求消息和所述UE请求使用的S-NSSAI;
    所述中继设备接收所述接入网设备发送的第四重配请求消息,所述第四重配请求消息包括第二会话建立响应消息。
  8. 一种会话建立方法,其特征在于,包括:
    用户设备UE向接入网设备发送第一消息,所述第一消息包括第一会话建立请求消息和所述UE请求使用的单一网络切片选择辅助信息S-NSSAI;
    所述UE接收所述接入网设备发送的第一重配请求消息,所述第一重配请求消息包括第一会话建立响应消息和数据资源承载DRB配置信息,所述DRB配置信息为所述S-NSSAI对应的DRB的信息;
    所述UE在所述DRB配置信息对应的DRB上传输信令和/或数据。
  9. 根据权利要求8所述的会话建立方法,其特征在于,在所述UE向接入网设备发送第一消息之前,所述方法还包括:
    所述UE向中继设备发送第一请求消息,所述第一请求消息包括所述UE请求使用的S-NSSAI;
    所述UE接收所述中继设备发送的第一响应消息,所述第一响应消息包括第一指示信息,所述第一指示信息用于指示所述中继设备在所述S-NSSAI内建立会话成功。
  10. 一种中继设备的选择方法,其特征在于,包括:
    用户设备UE获取M个第一指示信息,其中所述M个第一指示信息中的每个第一指示信息用于指示所述UE允许使用的一个网络切片,所述M为大于或等于1的正整数;
    所述UE接收L个中继设备分别发送的第一消息,其中,一个中继设备的所述第一消息包括N个第二指示信息,所述N个第二指示信息中的每个第二指示信息用于指示该中继设备允许使用的一个网络切片,所述L和所述N分别为大于或等于1的正整数;
    所述UE根据所述M个第一指示信息和所述L个第一消息,选择任意一个第一中继设备为目标中继设备,其中,所述第一中继设备的所述N个第二指示信息指示的网络切片包含所述M个第一指示信息指示的至少一个网络切片。
  11. 根据权利要求10所述的中继设备的选择方法,其特征在于,所述第一指示信息和所述第二指示信息分别为中继服务码RSC。
  12. 根据权利要求11所述的中继设备的选择方法,其特征在于,所述UE预先配置有第一信息,所述第一信息包括S个单一网络切片选择辅助信息S-NSSAI,以及与所述S个S-NSSAI一一对应的RSC,所述S为大于或等于所述M的正整数;
    所述UE获取M个第一指示信息,包括:
    所述UE向接入与移动控制功能AMF实体发送第一注册请求消息,其中,所述第一注册请求消息中包括所述UE请求使用的一个或多个S-NSSAI;
    所述UE接收所述AMF实体发送的第一注册响应消息,所述第一注册响应消息中包括所述UE允许使用的一个或多个S-NSSAI;
    所述UE根据所述UE允许使用的一个或多个S-NSSAI查询所述第一信息,获取所述M个第一指示信息。
  13. 根据权利要求11所述的中继设备的选择方法,其特征在于,所述UE获取M 个第一指示信息,包括:
    所述UE向接入与移动控制功能AMF实体发送第二注册请求消息,其中,所述第二注册请求消息中包括所述UE请求使用的一个或多个S-NSSAI;
    所述UE接收所述AMF实体发送的第二注册响应消息,所述第二注册响应消息中包括所述UE允许使用的一个或多个S-NSSAI以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC;
    所述UE根据所述UE允许使用的一个或多个S-NSSAI,以及与UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取所述M个第一指示信息。
  14. 根据权利要求10-13任一项所述的中继设备的选择方法,其特征在于,所述UE根据所述M个第一指示信息和所述L个第一消息,选择任意一个第一中继设备为目标中继设备后,所述方法还包括:
    所述UE与所述目标中继设备建立连接。
  15. 一种中继设备的选择方法,其特征在于,包括:
    L个中继设备分别获取各自的N个指示信息,一个所述指示信息用于指示该中继设备允许使用的一个网络切片,所述L和所述N为大于或等于1的正整数;
    所述L个中继设备分别向用户设备UE发送第一消息,其中,一个中继设备的所述第一消息包括所述N个指示信息,所述第一消息用于指示所述UE根据M个第一指示信息和所述L个第一消息选择所述L个中继设备中任意一个第一中继设备为目标中继设备;其中,一个所述第一指示信息用于指示所述UE允许使用的一个网络切片,所述M为大于或等于1的正整数;所述第一中继设备的所述N个指示信息指示的网络切片包含所述M个第一指示信息指示的至少一个网络切片。
  16. 根据权利要求15所述的中继设备的选择方法,其特征在于,所述第一指示信息和所述第二指示信息分别为中继服务码RSC。
  17. 根据权利要求16所述的中继设备的选择方法,其特征在于,所述中继设备预先配置有第一信息,所述第一信息包括S个单一网络切片选择辅助信息S-NSSAI,以及与所述S个S-NSSAI一一对应的RSC,所述S为大于或等于所述M的正整数;
    所述L个中继设备分别获取各自的N个指示信息,包括:
    所述中继设备向接入与移动控制功能AMF实体发送第一注册请求消息,其中,所述第一注册请求消息中包括所述中继设备请求使用的一个或多个S-NSSAI;
    所述中继设备接收所述AMF实体发送的第一注册响应消息,所述第一注册响应消息中包括所述中继设备允许使用的一个或多个S-NSSAI;
    所述中继设备根据所述中继设备允许使用的一个或多个S-NSSAI查询所述第一信息,获取所述N个指示信息。
  18. 根据权利要求16所述的中继设备的选择方法,其特征在于,所述L个中继设备分别获取各自的N个指示信息,包括:
    所述中继设备向接入与移动控制功能AMF实体发送第二注册请求消息,其中,所述第二注册请求消息中包括所述中继设备请求使用的一个或多个S-NSSAI;
    所述中继设备接收所述AMF实体发送的第二注册响应消息,所述第二注册响应消息中包括所述中继设备允许使用的一个或多个S-NSSAI以及与中继设备允许使用的 一个或多个S-NSSAI一一对应的RSC;
    所述中继设备根据所述中继设备允许使用的一个或多个S-NSSAI,以及与中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取所述N个指示信息。
  19. 一种中继设备的选择方法,其特征在于,包括:
    用户设备UE获取M个第一指示信息,其中所述M个第一指示信息中的每个第一指示信息用于指示所述UE允许使用的一个网络切片,所述M为大于或等于1的正整数;
    所述UE接收第一中继设备发送的第一消息,所述第一消息包括N个第二指示信息,其中所述N个第二指示信息中的每个第二指示信息用于指示所述中继设备允许使用的一个网络切片,所述N为大于或等于1的正整数;
    所述N个第二指示信息指示的网络切片包括至少一个所述M个第一指示信息指示的网络切片时,所述UE确定所述第一中继设备为目标中继设备。
  20. 根据权利要求19所述的中继设备的选择方法,其特征在于,所述M个第一指示信息中的每个第一指示信息和所述N个第二指示信息中的每个第二指示信息都为中继服务码RSC。
  21. 根据权利要求20所述的中继设备的选择方法,其特征在于,所述UE预先配置有第一信息,所述第一信息包括S个单一网络切片选择辅助信息S-NSSAI,以及与所述S个S-NSSAI一一对应的RSC,所述S为大于或等于所述M的正整数。
  22. 根据权利要求21所述的中继设备的选择方法,其特征在于,所述UE获取M个第一指示信息之前,还包括:
    所述UE向接入与移动控制功能AMF实体发送第一注册请求消息,其中,所述第一注册请求消息中包括所述UE请求使用的一个或多个S-NSSAI;
    所述UE接收所述AMF实体发送的第一注册响应消息,所述第一注册响应消息中包括所述UE允许使用的一个或多个S-NSSAI。
  23. 根据权利要求22所述的中继设备的选择方法,其特征在于,所述UE获取M个第一指示信息,包括:
    所述UE根据所述UE允许使用的一个或多个S-NSSAI和所述第一信息,获取所述M个第一指示信息。
  24. 根据权利要求20所述的中继设备的选择方法,其特征在于,所述UE获取M个第一指示信息之前,还包括:
    所述UE向接入与移动控制功能AMF实体发送第二注册请求消息,其中,所述第二注册请求消息中包括所述UE请求使用的一个或多个S-NSSAI;
    所述UE接收所述AMF实体发送的第二注册响应消息,所述第二注册响应消息中包括所述UE允许使用的一个或多个S-NSSAI,以及与所述UE允许使用的一个或多个S-NSSAI一一对应的RSC。
  25. 根据根权利要求24所述的中继设备的选择方法,其特征在于,所述UE获取M个第一指示信息,包括:
    所述UE根据所述UE允许使用的一个或多个S-NSSAI,以及与所述UE允许使用的一个或多个S-NSSAI一一对应的RSC,获取所述M个第一指示信息。
  26. 根据权利要求19-26任一项所述的中继设备的选择方法,其特征在于,所述UE确定所述第一中继设备为目标中继设备后,所述方法还包括:
    所述UE与所述目标中继设备建立连接。
  27. 一种中继设备的选择方法,其特征在于,包括:
    第一中继设备获取N个指示信息,其中所述N个指示信息中的每个指示信息用于指示所述第一中继设备允许使用的一个网络切片,所述N为大于或等于1的正整数;
    所述第一中继设备向用户设备UE发送第一消息,所述第一消息包括所述N个指示信息,用于指示所述UE根据M个第一指示信息和N个指示信息确定所述第一中继设备是否为目标中继设备;其中所述M个第一指示信息中的每个第一指示信息用于指示所述UE允许使用的一个网络切片,所述M为大于或等于1的正整数;所述目标中继设备的所述N个指示信息指示的网络切片包含至少一个所述M个第一指示信息指示的网络切片。
  28. 根据权利要求27所述的中继设备的选择方法,其特征在于,所述M个第一指示信息中的每个第一指示信息和所述N个第二指示信息中的每个第二指示信息都为中继服务码RSC。
  29. 根据权利要求28所述的中继设备的选择方法,其特征在于,所述第一中继设备预先配置有第一信息,所述第一信息包括S个单一网络切片选择辅助信息S-NSSAI,以及与所述S个S-NSSAI一一对应的RSC,所述S为大于或等于所述M的正整数。
  30. 根据权利要求29所述的中继设备的选择方法,其特征在于,所述第一中继设备获取N个指示信息之前,还包括:
    所述第一中继设备向接入与移动控制功能AMF实体发送第一注册请求消息,其中,所述第一注册请求消息中包括所述第一中继设备请求使用的一个或多个S-NSSAI;
    所述第一中继设备接收所述AMF实体发送的第一注册响应消息,所述第一注册响应消息中包括所述第一中继设备允许使用的一个或多个S-NSSAI。
  31. 根据权利要求29所述的中继设备的选择方法,其特征在于,所述第一中继设备获取N个指示信息,包括:
    所述第一中继设备根据所述第一中继设备允许使用的一个或多个S-NSSAI和所述第一信息,获取所述N个指示信息。
  32. 根据权利要求28所述的中继设备的选择方法,其特征在于,所述第一中继设备获取N个指示信息之前,还包括:
    所述第一中继设备向接入与移动控制功能AMF实体发送第二注册请求消息,其中,所述第二注册请求消息中包括所述第一中继设备请求使用的一个或多个S-NSSAI;
    所述第一中继设备接收所述AMF实体发送的第二注册响应消息,所述第二注册响应消息中包括所述第一中继设备允许使用的一个或多个S-NSSAI,以及与所述第一中继设备允许使用的一个或多个S-NSSAI一一对应的RSC。
  33. 根据根权利要求32所述的中继设备的选择方法,其特征在于,所述第一中继设备获取N个指示信息,包括:
    所述第一中继设备根据所述第一中继设备允许使用的一个或多个S-NSSAI,以及与所述第一中继设备允许使用的一个或多个S-NSSAI一一对应的RSC,获取所述N个 指示信息。
  34. 一种注册方法,其特征在于,包括:
    中继设备向接入与移动控制功能AMF实体发送注册请求消息,所述注册请求消息包括第一指示信息,所述第一指示信息用于指示所述AMF实体更新第一网络切片信息,所述第一网络切片信息用于指示所述中继设备允许使用的一个或多个单一网络切片选择辅助信息S-NSSAI;
    所述中继设备接收所述AMF实体发送的注册响应消息,所述注册响应消息中包括所述第一网络切片信息。
  35. 根据权利要求34所述的注册方法,其特征在于,在所述中继设备向AMF实体发送注册请求消息之前,所述方法还包括:
    所述中继设备与用户设备UE建立连接;
    所述中继设备接收所述UE发送的第一信息,所述第一信息为UE标识或第二网络切片信息,所述第二网络切片信息用于指示所述UE允许使用的一个或多个S-NSSAI。
  36. 根据权利要求35所述的注册方法,其特征在于,若所述第一信息为第二网络切片信息,所述注册请求消息还包括所述第二网络切片信息。
  37. 根据权利要求34-36任意一项所述的注册方法,其特征在于,所述中继设备接收所述AMF实体发送的注册响应消息之后,所述方法还包括:
    所述中继设备向UE发送第一消息,所述第一消息包括所述第一网络切片信息。
  38. 一种注册方法,其特征在于,包括:
    接入与移动控制功能AMF实体接收中继设备发送的注册请求消息,所述注册请求消息包括第一指示信息,所述第一指示信息用于指示所述AMF实体更新第一网络切片信息,所述第一网络切片信息用于指示所述中继设备允许使用的一个或多个单一网络切片选择辅助信息S-NSSAI;
    所述AMF实体向所述中继设备发送注册响应消息,所述注册响应消息中包括所述第一网络切片信息。
  39. 根据权利要求38所述的注册方法,其特征在于,所述AMF实体更新第一网络切片信息,包括:
    所述AMF实体获取用户设备UE允许使用的一个或多个S-NSSAI;
    所述AMF实体根据所述UE允许使用的一个或多个S-NSSAI和中继设备签约使用一个或多个S-NSSAI的交集更新所述第一网络切片信息。
  40. 根据权利要求38所述的注册方法,其特征在于,所述AMF实体更新第一网络切片信息,包括:
    所述AMF实体获取用户设备UE允许使用的一个或多个S-NSSAI;
    所述AMF实体向网络切片选择功能NSSF实体发送第一请求消息,所述第一请求消息用于请求所述NSSF实体更新第一网络切片信息,其中包括所述UE允许使用的一个或多个S-NSSAI、中继设备签约使用一个或多个S-NSSAI以及第二指示信息,所述第二指示信息用于指示所述NSSF实体更新第一网络切片信息;
    所述AMF实体接收所述NSSF实体发送的第一响应消息,所述第一响应消息包括所述第一网络切片信息。
  41. 根据权利要求39或40所述的注册方法,其特征在于,所述注册请求消息还包括UE标识,
    所述AMF实体获取用户设备UE允许使用的一个或多个S-NSSAI,包括:
    所述AMF实体向第一AMF实体发送第二请求消息,其中包括所述UE标识和第三指示信息,所述第三指示信息用于指示所述第一AMF实体获取UE允许使用的一个或多个S-NSSAI;
    所述AMF实体接收所述第一AMF实体发送的第二响应消息,其中包括所述UE允许使用的一个或多个S-NSSAI。
  42. 根据权利要求39或40所述的注册方法,其特征在于,所述注册请求消息还包括第二网络切片信息,所述第二网络切片信息用于指示所述UE允许使用的一个或多个S-NSSAI,
    所述AMF实体获取用户设备UE允许使用的一个或多个S-NSSAI,包括:所述AMF实体根据所述第二网络切片信息获取所述UE允许使用的一个或多个S-NSSAI。
  43. 一种接入网设备,其特征在于,所述接入网设备包括处理器和存储器;
    所述存储器用于存储计算机执行指令,当所述接入网设备运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述接入网设备执行如权利要求1-3中任意一项所述的会话建立方法。
  44. 一种中继设备,其特征在于,所述中继设备包括处理器和存储器;
    所述存储器用于存储计算机执行指令,当所述中继设备运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述中继设备执行如权利要求4-7中任意一项所述的会话建立方法;或者,使所述中继设备执行如权利要求15-18中任意一项所述的中继设备的选择方法;或者,使所述中继设备执行如权利要求27-33中任意一项所述的中继设备的选择方法;或者,使所述中继设备执行如权利要求34-37中任意一项所述的注册方法。
  45. 一种用户设备,其特征在于,所述用户设备包括处理器和存储器;
    所述存储器用于存储计算机执行指令,当所述用户设备运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述用户设备执行如权利要求8-9中任意一项所述的会话建立方法;或者,使所述用户设备执行如权利要求10-14中任意一项所述的中继设备的选择方法;或者,使所述用户设备执行如权利要求19-26中任意一项所述的中继设备的选择方法。
  46. 一种接入与移动控制功能实体,其特征在于,所述接入与移动控制功能实体包括处理器和存储器;
    所述存储器用于存储计算机执行指令,当所述接入与移动控制功能实体运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述接入与移动控制功能实体执行如权利要求38-42中任意一项所述的注册方法。
  47. 一种通信系统,其特征在于,所述通信系统包括如权利要求43所述的接入网设备、如权利要求44所述的中继设备、如权利要求45所述的用户设备和/或如权利要求46所述的接入与移动控制功能实体。
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