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WO2025035397A1 - Procédé, dispositif et produit-programme d'ordinateur pour des communications sans fil - Google Patents

Procédé, dispositif et produit-programme d'ordinateur pour des communications sans fil Download PDF

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Publication number
WO2025035397A1
WO2025035397A1 PCT/CN2023/113187 CN2023113187W WO2025035397A1 WO 2025035397 A1 WO2025035397 A1 WO 2025035397A1 CN 2023113187 W CN2023113187 W CN 2023113187W WO 2025035397 A1 WO2025035397 A1 WO 2025035397A1
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WIPO (PCT)
Prior art keywords
wireless communication
communication terminal
network function
session
identifier
Prior art date
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PCT/CN2023/113187
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English (en)
Inventor
Jinguo Zhu
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ZTE Corp
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ZTE Corp
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Publication date
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Priority to PCT/CN2023/113187 priority Critical patent/WO2025035397A1/fr
Publication of WO2025035397A1 publication Critical patent/WO2025035397A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing 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
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • This document is directed generally to wireless communications, and in particular to 5 th generation (5G) communications or 6 th generation (6G) communications.
  • the AMF Access and Mobility Management Function
  • the SMF Session Management Function
  • the SMF focuses on session-related tasks, orchestrating data and control plane functions for user sessions. It establishes and manages data paths, enforces quality of service (QoS) policies, and ensures efficient data routing and delivery, thereby optimizing the user experience within the 5G architecture.
  • QoS quality of service
  • This document relates to methods, systems, and computer program products for a wireless communication.
  • the wireless communication method includes: performing, by a session management node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication method includes: performing, by an access management node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication method includes: performing, by a wireless communication node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication method includes: performing, by a wireless communication terminal, a communication for a Protocol Data Unit, PDU, session by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication method includes: providing, by a network function to at least one of a session management node or an access management node, information of a wireless communication terminal for a Protocol Data Unit, PDU, session based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • the session management node includes a communication unit and a processor.
  • the processor is configured to: perform a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the access management node includes a communication unit and a processor.
  • the processor is configured to: perform a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication node includes a communication unit and a processor.
  • the processor is configured to:perform a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the wireless communication terminal includes a communication unit and a processor.
  • the processor is configured to: perform a communication for a Protocol Data Unit, PDU, session by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • the network node includes a communication unit and a processor.
  • the processor is configured to: provide, via the communication unit to at least one of a session management node or an access management node, information of a wireless communication terminal for a Protocol Data Unit, PDU, session based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • the information of the wireless communication terminal comprises at least one of:
  • MM context of the wireless communication terminal
  • SM session management
  • the MM context of the wireless communication terminal comprises at least one of: a Subscription Permanent Identifier, SUPI, of the wireless communication terminal or an address of an access management node for the wireless communication terminal.
  • SUPI Subscription Permanent Identifier
  • the SM information of the wireless communication terminal comprises at least one of: an SUPI of the wireless communication terminal or Quality of Service, QoS, flow information for the PDU session.
  • the session management node stores SM information into the network function, and the SM information comprises at least one of: an identifier of the PDU session, an address of the session management node, or QoS flow information for the PDU session.
  • the first identifier is a temporary identifier assigned by the network function.
  • the session management node performs at least one of:
  • the MM context comprises the SUPI of the wireless communication terminal
  • the session management node performs at least one of:
  • a wireless communication node receiving, from a wireless communication node, a request for activating the PDU session, and the request comprises at least one of an identifier of the PDU session or the first identifier;
  • the session management node performs:
  • the information of the wireless communication terminal comprises a session management, SM, context of the wireless communication terminal
  • the SM context comprises at least one of an identifier of the PDU session or an address of a session management node associated with the PDU session.
  • the access management node stores mobility management, MM, context of the wireless communication terminal into the network function, and the MM information comprises a Subscription Permanent Identifier, SUPI, of the wireless communication terminal.
  • SUPI Subscription Permanent Identifier
  • the access management node performs at least one of:
  • a subscription request comprising at least one of a SUPI of the wireless communication terminal, an address of the access management node, or an address of the network function;
  • an MM context of the wireless communication terminal comprising a SUPI of the wireless communication terminal
  • the access management node performs at least one of:
  • the SM context comprises an identifier for the PDU session and an address of a session management node associated to the PDU session;
  • the wireless communication node provides, to a wireless communication node, the first identifier and an address of a session management node to allow the wireless communication node to communicate with the session management node based on the address of the session management node to activate the PDU session.
  • the information stored in the network function comprises at least one of a Subscription Permanent Identifier, SUPI, of the wireless communication terminal, an address of the access management node for the wireless communication terminal, Quality of Service, QoS, flow information for the PDU session, an identifier of the PDU session, or an address of the session management node.
  • SUPI Subscription Permanent Identifier
  • the wireless communication node performs:
  • the wireless communication node performs:
  • the session management node transmitting, to the session management node, a message to active the PDU session based on an identifier for the PDU session and an address of the session management node, wherein the message comprises the first identifier to allow the session management node to retrieve session management information from the network function for activating the PDU session.
  • the wireless communication terminal performs at least one of:
  • the present disclosure relates to a computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any one of foregoing methods.
  • the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and/or hierarchy of steps in the methods disclosed herein are merely exemplary approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present disclosure. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
  • FIG. 1 shows a schematic diagram of a network according to an embodiment of the present disclosure.
  • FIG. 2 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • FIG. 3 shows a schematic diagram of network functions according to an embodiment of the present disclosure.
  • FIG. 4 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • FIG. 5 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • FIG. 6 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • FIG. 7 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • FIG. 8 shows an example of a schematic diagram of a wireless communication terminal according to an embodiment of the present disclosure.
  • FIG. 9 shows an example of a schematic diagram of a wireless communication node according to an embodiment of the present disclosure.
  • FIGs. 10 to 14 show flowcharts of wireless communication methods according to some embodiments of the present disclosure.
  • FIG. 1 shows a schematic diagram of a network according to an embodiment of the present disclosure.
  • the following functions are present:
  • the RAN manages radio resources and delivers user data received over the N3 interface to the UE, as well as delivers user data from the UE over the N3 interface.
  • the RAN performs mapping between Dedicated Radio Bearers (DRBs) and QoS flows in the PDU session.
  • DRBs Dedicated Radio Bearers
  • AMF -Access and Mobility Management Function This function includes the following functionalities: registration management, connection management, reachability management, and mobility management. This function also performs access authentication and access authorization.
  • the AMF serves as the NAS (Non-access stratum) security termination and relays the SM (session management) NAS between the UE and SMF, etc.
  • SMF -Session Management Function This function includes the following functionalities: session establishment, modification, and release; UE IP address allocation and management (including optional authorization functions) ; selection and control of UP (User Plane) function; downlink data notification, etc.
  • the SMF controls the UPF via the N4 interface.
  • the SMF provides Packet Detection Rules (PDRs) to UPF (User Plane Function) to instruct how to detect user data traffic, Forwarding Action Rules (FARs) , QoS Enforcement Rules (QERs) , and Usage Reporting Rules (URRs) to instruct the UPF on how to perform user data traffic forwarding, QoS handling, and usage reporting for the user data traffic detected using the PDR.
  • PDRs Packet Detection Rules
  • FARs Forwarding Action Rules
  • QERs QoS Enforcement Rules
  • URRs Usage Reporting Rules
  • UPF -User Plane Function This function includes the following functionalities: serving as an anchor point for intra-/inter-radio access technology (RAT) mobility; packet routing and forwarding; traffic usage reporting; QoS handling for the user plane; downlink packet buffering; downlink data notification triggering, etc.
  • GTP-U (General Packet Radio Service Tunnelling Protocol User Plane) tunnel is used over the N3 interface between the RAN and UPF. The GTP-U tunnel is per PDU session.
  • the UPF binds the downlink traffic to QoS flows within the GTP-U tunnel of the PDU session using the FARs received from SMF.
  • the RAN transfers the user plane traffic to QoS flows identified by the UE.
  • PCF -Policy Control Function provides QoS policy rules to control plane functions to enforce the rules.
  • UDM -Unified Data Management The UDM performs the generation of the 3GPP (3rd Generation Partnership Project) Authentication and Key Agreement (AKA) Authentication Credential, access authorization based on subscription data, UE's Serving NF Registration Management (e.g., storing serving AMF for UE, storing serving SMF for UE's PDU Session) , and Subscription management, etc.
  • the UDM accesses the UDR to retrieve the UE subscription data and stores the UE context into the UDR.
  • UDM and UDR may be deployed together.
  • FIG. 2 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • NAS Message e.g., including the S-NSSAI (s) (Single -Network Slice Selection Assistance Information) , DNN (Data Network Name) , PDU Session ID, Request type, N1 SM container (e.g., including the PDU Session Establishment Request) ) .
  • S-NSSAI Single -Network Slice Selection Assistance Information
  • DNN Data Network Name
  • PDU Session ID PDU Session ID
  • Request type e.g., including the PDU Session Establishment Request
  • the AMF selects the SMF for the PDU Session via the NRF (Network Repository Function) or local configuration.
  • NRF Network Repository Function
  • the AMF provides the DNN and S-NSSAI to the NRF (so that the NRF can select an SMF for the AMF) together with the Service Area of the selected SMF.
  • the AMF sends an Nsmf_PDUSession_CreateSMContext Request (e.g., including PDU Session ID, SM Context ID, UE location information, Access Type, RAT Type, Operation Type) to the selected SMF.
  • Nsmf_PDUSession_CreateSMContext Request e.g., including PDU Session ID, SM Context ID, UE location information, Access Type, RAT Type, Operation Type
  • the SMF sends an Nsmf_PDUSession_CreateSMContext Response to the AMF.
  • the SMF determines that the PCC authorization is required and requests to establish an SM Policy Association with the PCF by invoking the Npcf_SMPolicyControl_Create operation.
  • the PCF makes the authorization and the policy decision.
  • the PCF answers with an Npcf_SMPolicyControl_Create response.
  • the PCF may provide PCC rules to the SMF.
  • the SMF selects a UPF and requests the UPF to allocate an N3 tunnel for uplink data.
  • the SMF sends an Namf_Communication_N1N2MessageTransfer to the AMF.
  • the message contains parameters like the PDU Session ID, N2 SM information (e.g., including the PDU Session ID, QFI (s) , QoS Profile (s) , N3 tunnel of the UPF) , and N1 SM container (e.g., including the PDU Session Establishment Accept) .
  • N2 PDU Session Request (e.g., including the N2 SM information, NAS message (e.g., including the PDU Session ID, N1 SM container (e.g., including the PDU Session Establishment Accept) ) ) .
  • the (R) AN may issue the AN (access network) -specific signaling exchange with the UE related to the information received from the SMF. For example, in the case of an NG-RAN, an RRC Connection Reconfiguration may take place with the UE, establishing the necessary NG-RAN resources related to the QoS profile (s) .
  • the (R) AN also allocates (R) AN Tunnel Info for the PDU Session.
  • the (R) AN forwards the NAS message (e.g., including the PDU Session ID, N1 SM container (e.g., including the PDU Session Establishment Accept) ) to the UE.
  • N2 PDU Session Response (e.g., including the PDU Session ID, Cause, N2 SM information) .
  • the (R) AN Tunnel Info corresponds to the Access Network address of the N3 tunnel corresponding to the PDU Session.
  • Nsmf_PDUSession_UpdateSMContext Request (e.g., including the SM Context ID, N2 SM information, Request Type) .
  • the AMF forwards the N2 SM information received from (R) AN to the SMF.
  • Nsmf_PDUSession_UpdateSMContext Response (e.g., including the Cause) .
  • both the SM NAS message e.g., PDU Session Establishment Request, PDU Session Establishment Accept
  • N2 SM information are transferred via the AMF.
  • some embodiments of the present disclosure provide procedures to handle the PDU session without the involvement of the AMF.
  • a DRF Data Repository Function
  • the AMF stores the MM context into the DRF and the SMF stores the SM context into the DRF. Both the AMF and SMF can retrieve the UE context from the DRF.
  • the RAN can communicate with the SMF directly.
  • the N2 interface is service based so that the RAN can discover the SMF via the NRF (Network Repository Function) and communicate with the selected SMF directly.
  • NRF Network Repository Function
  • FIG. 4 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • the procedure can be the UE registration procedure.
  • the AMF stores the MM context into the DRF.
  • the procedure includes one or more of the following operations.
  • the UE sends the NAS Registration Request message to the RAN (e.g., a BS (base station) in the RAN) .
  • the NAS Registration Request message includes the Registration type, SUPI (Subscription Permanent Identifier) , Security parameters, UE MM Core Network Capability and other parameters.
  • the RAN selects an AMF and forward the Registration Request message to the AMF.
  • the AMF may decide to initiate the UE authentication by invoking an AUSF (Authentication Server Function) . In that case, the AMF selects an AUSF based on the SUPI (Subscription Permanent Identifier) and sends the UE Authentication Data request towards the AUSF.
  • AUSF Authentication Server Function
  • the AUSF retrieves the UE authentication data from the UDR.
  • the AUSF returns the UE Authentication Data response to the AMF.
  • the AMF performs the UE authentication towards the UE.
  • the AMF retrieves UE subscription data from the UDM.
  • the AMF discovers the UDM by using the SUPI.
  • the AMF sends the UE subscription data request towards the UDM.
  • the UE subscription data request includes the SUPI and the AMF address or DRF address.
  • the UDM retrieves the UE subscription data from the UDR.
  • the UDM stores the AMF address or DRF address and returns the UE subscription data to the AMF.
  • the AMF stores the UE context into the DRF.
  • the UE context stored into the DRF includes the SUPI of the UE.
  • the DRF allocates a temporary ID for the UE and provides the temporary ID to the AMF.
  • the temporary ID can be used to identify the DRF, and the UE context stored in the DRF.
  • the temporary ID is unique within the PLMN (Public Land Mobile Network) .
  • the AMF sends the Registration Accept message to the UE.
  • the Registration Accept message includes the Registration Area and the temporary ID.
  • the UE stores the Registration Area and the temporary ID and send the Registration Complete message to the AMF.
  • the UE is successfully registered in the network.
  • the UE context is stored in the DRF.
  • the AMF can release the resource allocated for the UE.
  • the RAN may reselect a different or the same AMF to serve the UE and the reselected AMF can retrieve the UE context from the DRF.
  • FIG. 5 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • the procedure can be the PDU session establishment procedure.
  • the RAN discovers the SMF and communicates with the SMF directly without involvement of the AMF.
  • the procedure includes one or more of the following operations.
  • the UE sends a message for establishing the PDU session (e.g., the NAS Message) to the RAN (e.g., a BS (base station) in the RAN) .
  • the NAS Message includes the S-NSSAI (s) , DNN, PDU Session ID, Request type, N1 SM container (e.g., including the PDU Session Establishment Request) ) .
  • the PDU Session Establishment Request includes the Temporary ID.
  • the Temporary ID is provided to the UE during the registration procedure.
  • the UE may transmit the Temporary ID to the RAN together with another message or transmit the Temporary ID to the RAN independently.
  • the RAN selects an SMF for the PDU Session via the NRF or local configuration.
  • the RAN provides the DNN and S-NSSAI (s) to the NRF.
  • the NRF can select an SMF based on the DNN and S-NSSAI (s) and provide the information of the selected SMF to the RAN.
  • the RAN forwards the PDU Session Establishment Request to the selected SMF based on the information received from the NRF, together with at least one of the Temporary ID, the PDU Session ID, SM Context ID, UE location information, Access Type, and/or RAT (radio access technology) Type.
  • the RAN may transmit the Temporary ID to the SMF together with another message or transmit the Temporary ID to the SMF independently.
  • the SMF retrieves the UE MM context from the UDR by using the Temporary ID.
  • the UE MM context includes the SUPI of the UE.
  • the SMF retrieves the UE subscription data of the S-NSSAI and DNN from the UDM by using the SUPI, S-NSSAI and DNN.
  • the SMF determines the QoS flow parameters based on the subscription and PCC rules.
  • the SMF selects an UPF to serve the PDU session and configure the UPF with the detection rules and traffic handling rules for the QoS flows.
  • the UPF allocates N3 tunnel information for the uplink traffic.
  • the SMF sends the radio resource request to the RAN to request the radio resource allocation for the QoS flows of the PDU session.
  • the radio resource request includes the QoS profiles of the QoS flows and the N3 tunnel information of the UPF.
  • the RAN communicates with the UE to allocate the radio resource for the QoS flows.
  • the RAN also allocates the RAN N3 Tunnel Info for the PDU Session.
  • the RAN sends the Radio resource response to the SMF, and the Radio resource response includes the RAN N3 Tunnel Info for the PDU Session.
  • the SMF stores the SM context into the DRF.
  • the SM context includes at least one of the PDU Session ID, the SMF address of the PDU session, and/or the QoS flow information.
  • the SMF provides the RAN N3 Tunnel Info for the PDU Session to the UPF.
  • the SMF sends the PDU Session Establishment Accept to the RAN.
  • this message may include a UE IP address for the PDU session.
  • the SMF may use the user plane to allocate the UP IP address to the UE.
  • the RAN forwards the PDU Session Establishment Accept to the UE.
  • the PDU Session is established, and the UE SM context is stored in the DRF. In this procedure, the interactions between the AMF and the SMF are avoided.
  • FIG. 6 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • the procedure can be the MO (mobile originated) service request procedure to activate the user plane of an existing PDU session.
  • the AMF provides the SMF information to the RAN so that the RAN can communicates with the SMF directly.
  • the procedure includes one or more of the following operations.
  • the UE sends a Service Request to the RAN (e.g., a BS (base station) in the RAN) .
  • the RAN e.g., a BS (base station) in the RAN
  • MO mobile originated
  • MO signaling or receives Paging request from the network
  • the UE establishes the RRC connection and initiates the Service Request over the RRC connection to the RAN.
  • the Service Request includes the PDU Session ID to be activated.
  • the Service Request includes the Temporary ID.
  • the Temporary ID is provided to the UE during the registration procedure.
  • the RAN node forwards the Service Request to the AMF.
  • the RAN creates the UE context and forwards the Service Request to the AMF in the Initial UE Message.
  • the AMF retrieves the UE SM context from the DRF.
  • the AMF accepts the Service Request and retrieves the UE SM context from the DRF.
  • the UE SM context includes the PDU session ID and the associated SMF address (e.g., the address of the SMF associated with the PDU session) .
  • the AMF retrieves the UE SM context from the DRF based on the Temporary ID received from the UE (e.g., through the RAN) .
  • the AMF provides a message (e.g., the Service Accept message) to the RAN.
  • the AMF provides the UE SM context to the RAN.
  • the AMF provides a new Temporary ID to the RAN, and the RAN uses the new Temporary ID in the subsequent procedure.
  • the AMF provides the Service Accept message together with the (new) Temporary ID and the UE SM context.
  • the (new) Temporary ID and the UE SM context can be transmitted to the RAN together with another message or transmitted independent from another message.
  • the UE SM context includes the PDU Session ID and the associated SMF address.
  • the RAN provides the Service Accept message to the UE. After this step, the UE enters the CONNECTED mode.
  • the RAN sends a message for activating the PDU session (e.g., the Update PDU Session request) to the associated SMF (e.g., the SMF associated with the PDU Session ID in the received UE SM context) .
  • the message e.g., the Update PDU Session request
  • the RAN may send the (new) Temporary ID to the SMF via another message or send the (new) Temporary ID to the SMF independently.
  • the SMF may retrieve the Session management information from the DRF by using at least one of the (new) Temporary ID and/or the PDU Session ID.
  • the Session management information includes the SUPI of the UE and the QoS flow information of the PDU Session.
  • the SMF activates the PDU Session and sends the Radio Resource Request to the RAN to request the radio resource allocation for the PDU session.
  • this message includes the QoS profiles for the PDU session and the N3 tunnel information of the UPF.
  • the RAN communicates with the UE to allocate the radio resource.
  • the RAN also allocates RAN N3 Tunnel Info for the PDU Session.
  • the RAN sends the Radio resource response to the SMF, and the Radio resource response includes the RAN N3 Tunnel Info for the PDU Session.
  • the SMF provides the RAN N3 Tunnel Info for the PDU Session to the UPF.
  • the SMF provides the Update PDU Session Response to the RAN. This message may be sent together with the Radio Resource Request described above.
  • the SMF may store the new Session Management information into the DRF.
  • the new Session Management information includes the PDU Session ID and the QoS flow information.
  • the user plane of the PDU Session is activated and the traffic can be sent from or towards the UE over the user plane.
  • the interactions between the AMF and SMF are avoided.
  • FIG. 7 shows a schematic diagram of a procedure according to an embodiment of the present disclosure.
  • the procedure can be the MT (mobile terminated) service request procedure to activate the user plane of an existing PDU session.
  • the procedure includes one or more of the following operations.
  • the UPF receives the Downlink Data from the Data Network.
  • the UPF sends the downlink data notification to an SMF.
  • the UPF sends the downlink data notification to the SMF in response to the UPF detecting that the PDU Session is not activated.
  • the SMF may retrieve the UE MM context from the DRF by using the SUPI.
  • the SMF may retrieve the UE MM context from the DRF in response to the downlink data notification.
  • the UE MM context includes the AMF address of the UE and the QoS flow information of the PDU Session.
  • the SUPI is received from the UPF or stored by the SMF locally.
  • the SMF sends the Mobile Terminated request to the AMF to request the paging the UE.
  • the AMF determines that the UE is in the IDLE state, and the AMF transmits the Paging Request message towards all RAN nodes (e.g., BSs) within the Registration Area.
  • RAN nodes e.g., BSs
  • the RAN pages the UE over the air interface.
  • the UE After the UE receives the paging request, the UE initiates the MO service request procedure.
  • the MO service request procedure can be identical to the MO service request procedure described above.
  • the UE may perform at least one of the following:
  • the PDU session establishment request includes the temporary ID, PDU Session ID, S-NSSAI (s) and/or DNN.
  • the SMF may perform at least one of the following:
  • the UE context includes the SUPI
  • the AMF may perform at least one of the following:
  • the service request message includes a PDU session ID
  • the RAN may perform at least one of the following:
  • the RAN may perform at least one of the following:
  • the DRF may perform at least one of the following:
  • UE context e.g., UE MM context and/or UE SM context
  • the UE context request message including the temporary ID
  • FIG. 8 relates to a diagram of a wireless communication terminal 30 according to an embodiment of the present disclosure.
  • the wireless communication terminal 30 may be a tag, a mobile phone, a laptop, a tablet computer, an electronic book or a portable computer system and is not limited herein.
  • the wireless communication terminal 30 may be used to implement the UE described in this disclosure.
  • the wireless communication terminal 30 may include a processor 300 such as a microprocessor or Application Specific Integrated Circuit (ASIC) , a storage unit 310 and a communication unit 320.
  • the storage unit 310 may be any data storage device that stores a program code 312, which is accessed and executed by the processor 300.
  • Embodiments of the storage code 312 include but are not limited to a subscriber identity module (SIM) , read-only memory (ROM) , flash memory, random-access memory (RAM) , hard-disk, and optical data storage device.
  • SIM subscriber identity module
  • ROM read-only memory
  • RAM random-access memory
  • the communication unit 320 may a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 300.
  • the communication unit 320 transmits and receives the signals via at least one antenna 322 or via wiring.
  • the storage unit 310 and the program code 312 may be omitted and the processor 300 may include a storage unit with stored program code.
  • the processor 300 may implement any one of the steps in exemplified embodiments on the wireless communication terminal 30, e.g., by executing the program code 312.
  • the communication unit 320 may be a transceiver.
  • the communication unit 320 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a wireless communication node.
  • the wireless communication terminal 30 may be used to perform the operations of the UE described in this disclosure.
  • the processor 300 and the communication unit 320 collaboratively perform the operations described in this disclosure. For example, the processor 300 performs operations and transmit or receive signals, message, and/or information through the communication unit 320.
  • FIG. 9 relates to a diagram of a wireless communication node 40 according to an embodiment of the present disclosure.
  • the wireless communication node 40 may be a satellite, a base station (BS) , a gNB, a network entity, a Domain Name System (DNS) server, a Mobility Management Entity (MME) , Serving Gateway (S-GW) , Packet Data Network (PDN) Gateway (P-GW) , a radio access network (RAN) , a next generation RAN (NG-RAN) , a data network, a core network, a network node in the core network, or a Radio Network Controller (RNC) , and is not limited herein.
  • BS base station
  • gNB a network entity
  • DNS Domain Name System
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN Packet Data Network Gateway
  • RAN radio access network
  • NG-RAN next generation RAN
  • RNC Radio Network Controller
  • the wireless communication node 40 may include (perform) at least one network function such as an access and mobility management function (AMF) , a session management function (SMF) , a data repository function, a user place function (UPF) , a policy control function (PCF) , an application function (AF) , etc.
  • the wireless communication node 40 may be used to implement the RAN, a BS in the RAN, or the network functions (e.g., the AMF, the SMF, the DRF, etc. ) described in the present disclosure.
  • the wireless communication node 40 may include a processor 400 such as a microprocessor or ASIC, a storage unit 410 and a communication unit 420.
  • the storage unit 410 may be any data storage device that stores a program code 412, which is accessed and executed by the processor 400. Examples of the storage unit 412 include but are not limited to a SIM, ROM, flash memory, RAM, hard-disk, and optical data storage device.
  • the communication unit 420 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 400. In an embodiment, the communication unit 420 transmits and receives the signals via at least one antenna 422 or via wiring.
  • the storage unit 410 and the program code 412 may be omitted.
  • the processor 400 may include a storage unit with stored program code.
  • the processor 400 may implement any steps described in exemplified embodiments on the wireless communication node 40, e.g., via executing the program code 412.
  • the communication unit 420 may be a transceiver.
  • the communication unit 420 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals, messages, or information to and from a wireless communication node or a wireless communication terminal.
  • the wireless communication node 40 may be used to perform the operations of the RAN, or the network functions (e.g., the AMF, the SMF, the DRF, etc. ) described in this disclosure described in this disclosure.
  • the processor 400 and the communication unit 420 collaboratively perform the operations described in this disclosure. For example, the processor 400 performs operations and transmit or receive signals through the communication unit 420.
  • a wireless communication method is also provided according to an embodiment of the present disclosure.
  • the wireless communication method may be performed by using a session management node (e.g., an SMF) .
  • the session management node may be implemented by using the wireless communication node 40 described in this disclosure, but is not limited thereto.
  • the wireless communication method includes: performing, by a session management node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • a wireless communication method is also provided according to an embodiment of the present disclosure.
  • the wireless communication method may be performed by using an access management node (e.g., an AMF) .
  • the access management node may be implemented by using the wireless communication node 40 described in this disclosure, but is not limited thereto.
  • the wireless communication method includes: performing, by an access management node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by retrieving information of the wireless communication terminal from a network function based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • a wireless communication method is also provided according to an embodiment of the present disclosure.
  • the wireless communication method may be performed by using a wireless communication node (e.g., a RAN or a BS in a RAN) .
  • the wireless communication node may be implemented by using the wireless communication node 40 described in this disclosure, but is not limited thereto.
  • the wireless communication method includes: performing, by a wireless communication node, a communication for a Protocol Data Unit, PDU, session for a wireless communication terminal by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • a wireless communication method is also provided according to an embodiment of the present disclosure.
  • the wireless communication method may be performed by using a wireless communication terminal (e.g., a UE) .
  • the wireless communication terminal may be implemented by using the wireless communication terminal 30 described in this disclosure, but is not limited thereto.
  • the wireless communication method includes: performing, by a wireless communication terminal, a communication for a Protocol Data Unit, PDU, session by transmitting a first identifier to at least one of an access management node or a session management node, wherein the first identifier identifies both a network function and information of the wireless communication terminal stored in the network function.
  • PDU Protocol Data Unit
  • a wireless communication method is also provided according to an embodiment of the present disclosure.
  • the wireless communication method may be performed by using a network node (e.g., a network function) .
  • the network node may be implemented by using the wireless communication node 40 described in this disclosure, but is not limited thereto.
  • the wireless communication method includes: providing, by a network function to at least one of a session management node or an access management node, information of a wireless communication terminal for a Protocol Data Unit, PDU, session based on a first identifier identifying both the network function and the information of the wireless communication terminal stored in the network function.
  • the session management node used in the present disclosure may indicate the SMF described above.
  • the access management node used in the present disclosure may indicate the AMF described above.
  • the wireless communication terminal used in the present disclosure may indicate the UE described above.
  • the wireless communication node used in the present disclosure may indicate the RAN or the BS in the RAN described above.
  • the network function used in the present disclosure may indicate the DRF described above.
  • the first identifier used in the present disclosure may indicate the Temporary ID described above.
  • a and/or B and/or C includes any and all combinations of one or more of A, B, and C, including A, B, C, A and B, A and C, B and C, and a combination of A and B and C.
  • A/B/C includes any and all combinations of one or more of A, B, and C, including A, B, C, A and B, A and C, B and C, and a combination of A and B and C.
  • any reference to an element herein using a designation such as “first, “ “second, “ and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
  • any one of the various illustrative logical blocks, units, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software” or a “software unit” ) , or any combination of these techniques.
  • a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein.
  • IC integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the logical blocks, units, and circuits can further include antennas and/or transceivers to communicate with various components within the network or within the device.
  • a general-purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine.
  • a processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another.
  • a storage media can be any available media that can be accessed by a computer.
  • such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • unit refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various units are described as discrete units; however, as would be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.
  • memory or other storage may be employed in embodiments of the present disclosure.
  • memory or other storage may be employed in embodiments of the present disclosure.
  • any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present disclosure.
  • functionality illustrated to be performed by separate processing logic elements, or controllers may be performed by the same processing logic element, or controller.
  • references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.

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

Abstract

Un procédé de communication sans fil est divulgué. Le procédé comprend la réalisation, par un nœud de gestion de session, d'une communication pour une session d'unité de données de protocole, PDU, pour un terminal de communication sans fil par récupération d'informations du terminal de communication sans fil par une fonction de réseau sur la base d'un premier identifiant qui identifie à la fois la fonction de réseau et les informations du terminal de communication sans fil stockées dans la fonction de réseau.
PCT/CN2023/113187 2023-08-15 2023-08-15 Procédé, dispositif et produit-programme d'ordinateur pour des communications sans fil Pending WO2025035397A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110495214A (zh) * 2017-04-19 2019-11-22 Lg电子株式会社 用于处理pdu会话建立过程的方法和amf节点
US20200228936A1 (en) * 2019-01-15 2020-07-16 Peyman TALEBI FARD Session Establishment To Join A Group Communication
CN113507732A (zh) * 2017-06-19 2021-10-15 三星电子株式会社 用于网络虚拟化和会话管理的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110495214A (zh) * 2017-04-19 2019-11-22 Lg电子株式会社 用于处理pdu会话建立过程的方法和amf节点
CN113507732A (zh) * 2017-06-19 2021-10-15 三星电子株式会社 用于网络虚拟化和会话管理的方法和装置
US20200228936A1 (en) * 2019-01-15 2020-07-16 Peyman TALEBI FARD Session Establishment To Join A Group Communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE: "Correction on the usage of SUPI and PDU Session ID", 3GPP DRAFT; S2-2001261, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. Incheon, Korea; 20200113 - 20200117, 15 January 2020 (2020-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051844009 *

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