WO2025167151A1 - 会话控制方法、设备及存储介质 - Google Patents

会话控制方法、设备及存储介质

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Publication number
WO2025167151A1
WO2025167151A1 PCT/CN2024/123295 CN2024123295W WO2025167151A1 WO 2025167151 A1 WO2025167151 A1 WO 2025167151A1 CN 2024123295 W CN2024123295 W CN 2024123295W WO 2025167151 A1 WO2025167151 A1 WO 2025167151A1
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WO
WIPO (PCT)
Prior art keywords
session
dual
network element
identifier
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/123295
Other languages
English (en)
French (fr)
Inventor
周星月
朱进国
游世林
梁爽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2025167151A1 publication Critical patent/WO2025167151A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H04W8/082Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20Transfer of user or subscriber data

Definitions

  • the present application relates to the field of communication technology, and in particular to a session control method, device, and storage medium.
  • DualSteer devices can connect to two 3rd Generation Partnership Project (3GPP) access networks of the same or different Public Land Mobile Networks (PLMN) (i.e., core networks).
  • 3GPP 3rd Generation Partnership Project
  • PLMN Public Land Mobile Networks
  • application scenarios include 3GPP access networks using the same or different Radio Access Technology (RAT) types: terrestrial New Radio (NR) and NR, or NR+Evolved Universal Terrestrial Radio Access (E-UTRA), terrestrial NR+non-terrestrial NR, etc.
  • RAT Radio Access Technology
  • NR New Radio
  • E-UTRA NR+Evolved Universal Terrestrial Radio Access
  • DualSteer device consists of two User Equipment (UEs), each configured with Subscription Permanent Identifier 1 (SUPI 1) and SUPI 2.
  • UEs User Equipment
  • SUPI 1 Subscription Permanent Identifier 1
  • SUPI 2 User Equipment
  • embodiments of the present application provide a session control method, device, and storage medium to achieve the steering and control of data flow.
  • This embodiment of the present application provides a session control method, applied to a first network element, including:
  • a second network element that supports the dual-steering function is selected according to the dual-steering indication information, so that the second network element obtains the dual-steering session rule corresponding to the first communication device; wherein the dual-steering session rule is used to indicate the dual-steering session adopted by the first communication device for transmitting data streams.
  • the dual-steering session rule is used to indicate the dual-steering session adopted by the first communication device for transmitting data streams; wherein the second network element is a network element that supports the dual-steering function selected by the first network element according to the dual-steering indication information sent by the first communication device.
  • This embodiment of the present application provides a session control method, applied to a third network element, including:
  • the contract information is used for network registration; wherein the session management contract information includes at least: a first contract identifier; a second contract identifier; shared contract information of the first contract identifier and the second contract identifier; wherein the first contract identifier corresponds to the first terminal in the first communication device; and the second contract identifier corresponds to the second terminal in the first communication device.
  • the memory is configured to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method described in any one of the above embodiments.
  • An embodiment of the present application provides a storage medium storing a computer program.
  • the computer program is executed by a processor, the method described in any one of the above embodiments is implemented.
  • FIG1 is a structural block diagram of a dual-steering device and a network side provided by the related art
  • FIG2 is a flow chart of a session control method provided in an embodiment of the present application.
  • FIG3 is a flowchart of another session control method provided in an embodiment of the present application.
  • FIG4 is a flowchart of another session control method provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of an interaction of multi-access session control provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of another interaction of multi-access session control provided in an embodiment of the present application.
  • FIG7 is a structural block diagram of a session control device provided in an embodiment of the present application.
  • FIG8 is a structural block diagram of another session control device provided in an embodiment of the present application.
  • FIG9 is a structural block diagram of another session control device provided in an embodiment of the present application.
  • FIG10 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • Figure 1 is a structural block diagram of a dual-steer device and the network side provided by the relevant technology.
  • the dual-steer device includes two terminals, namely the first terminal (denoted as UE1) and the second terminal (denoted as UE2).
  • UE1 and UE2 can register with the network through two different base stations.
  • UE1 can register with the network through NR, Access and Mobility Management Function 1 (Access and Mobility Management Function1, AMF1), Session Management Function (Session Management Function, SMF) and User Plane Function 1 (User Plane Function1, UPF1), or through NR and UPF1 registers with the network;
  • UE2 can register with the network through NTN NR, AMF2, SMF, and UPF2, or through the non-terrestrial network (NTN) NR and UPF2.
  • NTN NR Access and Mobility Management Function 1
  • SMF Session Management Function
  • UPF1 User Plane Function1
  • NTN NR non-terrestrial network
  • the DualSteer device supports traffic steering and user data (for different services) exchange across two 3GPP access networks.
  • the DualSteer device has two subscribers (UE1 and UE2, corresponding to two SUPIs) sharing the same subscription profile from the same operator.
  • S220 Select a second network element that supports the dual-steering function according to the dual-steering indication information, so that the second network element obtains a dual-steering session rule corresponding to the first communication device; wherein the dual-steering session rule is used to indicate the dual-steering session used by the first communication device to transmit the data stream.
  • Network registration is performed based on session management contract information.
  • the first network element corresponding to the first terminal can obtain session management contract information from the third network element, and the session management contract information includes: the second contract identifier corresponding to the second terminal, and the shared contract information of the first contract identifier and the second contract identifier; then, the second terminal also obtains the session management contract information through the corresponding first network element, and the session management contract information includes: the first contract identifier corresponding to the first terminal, and the shared contract information of the first contract identifier and the second contract identifier.
  • the session control method applied to the first network element further includes: receiving, from a third network element, indication information indicating that the second terminal has successfully registered with the network.
  • network registration can be performed first through the first network element corresponding to the first terminal, and then through the first network element corresponding to the second terminal. After the second terminal has successfully registered with the network through the first network element corresponding to the second terminal, the third network element can notify the first network element corresponding to the first terminal of the indication information indicating that the second terminal has successfully registered with the network.
  • the uplink signaling message includes: a dual-direction session identifier and a session establishment request message; wherein the session establishment request message includes at least dual-direction indication information.
  • the session establishment request message is a request message for requesting to establish a PDU session.
  • the session establishment request message also includes: a dual-direction session identifier.
  • the dual-direction session identifier is used to indicate the PDU session identifier corresponding to the first terminal or the second terminal.
  • the uplink signaling message in the case of sending an uplink signaling message to the corresponding first network element through the first terminal, includes the PDU session identifier corresponding to the first terminal, and correspondingly, the dual-direction session identifier included in the session establishment request message is the PDU session identifier corresponding to the first terminal; in one example, in the case of sending an uplink signaling message to the corresponding first network element through the second terminal, the uplink signaling message includes the PDU session identifier corresponding to the second terminal, and correspondingly, the dual-direction session identifier included in the session establishment request message is the PDU session identifier corresponding to the second terminal.
  • the session control method applied to the first network element further includes: sending a session establishment request message to the second network element, so that the second network element obtains a session establishment instruction message from the third network element.
  • the session management subscription information of the information is provided; wherein the session establishment indication information is used to indicate whether the establishment of a dual-direction session is allowed.
  • the session establishment indication information is used to indicate whether the first terminal or the second terminal is allowed to establish a dual-direction session. It can also be understood that the session establishment indication information is used to indicate whether the first terminal or the second terminal supports the dual-direction function. If the first terminal or the second terminal supports the dual-direction function, it can also be understood that the first terminal or the second terminal is allowed to establish a dual-direction session.
  • selecting the second network element supporting the dual-direction function according to the dual-direction indication information includes one of the following:
  • the fourth network element may be a Network Repository Function (NRF).
  • NRF Network Repository Function
  • the first network element corresponding to the first terminal may select a second network element that supports the dual-steering function according to the dual-steering indication information in the uplink signaling message.
  • the session control method applied to the first network element further includes:
  • a second network element that is serving the established dual-direction session is selected from the session-related information.
  • the first network element corresponding to the second terminal can obtain session-related information from the third network element, or the third network element can push updated session-related information to the first network element corresponding to the second terminal.
  • the first network element corresponding to the second terminal selects the second network element that is serving the established dual-direction session (i.e., the PDU session corresponding to the first terminal) from the session-related information.
  • the session management contract information also includes a specific session identifier for performing the dual-direction function.
  • a terminal can establish multiple PDU sessions, and each PDU session is configured with a unique session identifier.
  • the specific session identifier can be specified in the session management contract information as the identifier of the dual-direction session.
  • the first terminal is in an idle state and the second terminal is in a connected state; the session control method applied to the first network element further includes: receiving a notification message sent by the second network element through the first network element serving the second terminal, so that the first terminal activates the dual-steering user plane; wherein the notification message includes at least: the first subscription identifier and the session identifier corresponding to the first terminal.
  • the notification message It can be: Namf_Communication_N1N2MessageTransfer message.
  • the second network element When the second network element receives downlink data sent to the first terminal, and the downlink data is related to the PDU session corresponding to the first terminal, the second network element can send a notification message to the first network element serving the second terminal, so that the first network element corresponding to the second terminal notifies the second terminal of the downlink message of the first terminal and the associated dual-direction session, so that the second terminal transmits the received notification message to the first terminal.
  • the first terminal can initiate a service request process, thereby avoiding the process of directly sending a paging message to the air interface of the first terminal, thereby saving the wireless resources corresponding to the first terminal.
  • a dual-direction session rule indicates the dual-direction path used by the first terminal using at least one of the following parameters: a connection identifier and a subscription identifier; and a connection address.
  • the subscription identifier may be a SUPI or an International Mobile Subscriber Identity (IMSI).
  • IMSI International Mobile Subscriber Identity
  • the connection identifier may be a Packet Data Network (PDN) connection identifier
  • the connection address may be a PDN connection address.
  • the connection identifier may be a PDU session identifier
  • the connection address may be a PDU session address.
  • the PDU session address may include an IPv4 address and/or an IPv6 prefix/address.
  • FIG3 is a flowchart of another session control method provided by an embodiment of the present application. This embodiment is applied to a scenario where a dual-steering device performs data flow steering and/or switching. This embodiment can be executed by a second network element. As shown in FIG3 , this embodiment includes: S310.
  • S310 Obtain a dual-steering session rule corresponding to the first communication device; wherein the dual-steering session rule is used to indicate the dual-steering session adopted by the first communication device for transmitting data streams; wherein the second network element is a network element that supports the dual-steering function selected by the first network element according to the dual-steering indication information sent by the first communication device.
  • a first communication device includes a first terminal and a second terminal; wherein the first terminal is configured with a first subscription identifier; and the second terminal is configured with a second subscription identifier; and the session control method applied to a second network element further includes:
  • session management contract information carrying at least session establishment indication information from a third network element; wherein the session establishment indication information is used to indicate whether establishment of a dual-direction session is allowed; the session management contract information also includes: a first contract identifier; a second contract identifier; and shared contract information of the first contract identifier and the second contract identifier.
  • the session control method applied to the second network element further includes:
  • the fourth network element sends dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type to the fourth network element, so that the fourth network element selects a fifth network element that supports the dual-steering function.
  • the fifth network element may be a Policy Control Function (PCF).
  • the second network element may select a suitable fifth network element for the dual-steering session corresponding to the first terminal.
  • the suitable fifth network element may be selected based on local configuration information, or the dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type may be provided to the fourth network element, so that the fourth network element selects the fifth network element that supports the dual-steering function.
  • a session control method applied to a second network element further includes: initiating a session policy association process with a fifth network element and obtaining a dual-direction session rule corresponding to the first terminal; wherein the dual-direction session rule indicates a dual-direction session used by the first terminal to transmit data streams.
  • the second network element may initiate a session policy association process with the fifth network element to obtain a Policy Control and Charging (PCC) rule for the dual-direction session corresponding to the first terminal, and the PCC rule may include the dual-direction session rule for use by the first terminal and the sixth network element.
  • PCC Policy Control and Charging
  • the session control method applied to the second network element further includes: sending dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type to the fourth network element, so that the fourth network element selects a sixth network element that supports the dual-steering function.
  • the sixth network element may be a UPF.
  • the second network element may select an appropriate sixth network element for the dual-steering session corresponding to the first terminal.
  • the appropriate sixth network element may be selected based on local configuration information, or the second network element may be provided with the dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type to the fourth network element, so that the fourth network element selects the sixth network element that supports the dual-steering function.
  • the session control method applied to the second network element further includes: registering session-related information of the dual-direction session corresponding to the first terminal to the third network element; wherein the session-related information includes at least: dual-direction indication information, RAT type, and dual-direction session identifier.
  • the dual-direction session rule indicates the dual-direction path adopted by the first terminal through at least one of the following parameters: a connection identifier and a subscription identifier; and a connection address.
  • the session management subscription information further includes: a specific session identifier for performing the dual-direction function.
  • the session control method applied to the second network element further includes: when the dual-direction session identifier carried in the session establishment request message is inconsistent with the specific session identifier, sending a session establishment response message carrying at least session establishment rejection indication information to the first network element; wherein the session establishment rejection indication information is used to indicate that the dual-direction session identifier is not the specific session identifier of the dual-direction session.
  • the session management contract information includes a specific session identifier for performing the dual-direction function
  • the second network element needs to determine whether the dual-direction session identifier is consistent with the specific session identifier.
  • the second network element Process the session establishment request message; if the two are inconsistent, the second network element sends a session establishment response message carrying at least session rejection establishment indication information to the first network element, and forwards the session establishment response message to the corresponding first terminal or second terminal through the first network element, so that the first terminal or the second terminal knows that the dual-direction session identifier is not a specific session identifier of the dual-direction session.
  • the session control method applied to the third network element further includes: receiving session related information of the dual-direction session corresponding to the first terminal registered with the second network element; wherein the session related information includes at least: dual-direction indication information and RAT type.
  • the session control method applied to the third network element further includes: pushing session-related information to the first network element so that the first network element selects the second network element that is serving the established dual-direction session from the session-related information based on the shared subscription information of the first subscription identifier and the second subscription identifier, and the dual-direction indication information.
  • the session control method applied to the third network element further includes: receiving session related information of the dual-direction session corresponding to the second terminal registered with the second network element; wherein the session related information at least Includes: dual-direction indication information, RAT type and associated dual-direction session identifier.
  • first network element second network element, third network element, dual-direction session rules, session management contract information, first contract identifier, second contract identifier, dual-direction session identifier, connection identifier, contract identifier and connection address involved in the session control method applied to the second network element
  • session management contract information first contract identifier, second contract identifier, dual-direction session identifier, connection identifier, contract identifier and connection address involved in the session control method applied to the second network element
  • the first communication device is a Dualsteer device, and the Dualsteer device includes a first terminal (denoted as UE1) and a second terminal (denoted as UE2);
  • the 3GPP access network includes a Radio Access Network (RAN) A and RAN B, wherein UE1 corresponds to RAN A and UE2 corresponds to RAN B;
  • the first network element includes two network elements (AMF1 and AMF2), wherein the first network element (denoted as AMF1) corresponds to UE1 and the first network element (denoted as AMF2) corresponds to UE2;
  • UE1 is configured with SUPI 1 and UE2 is configured with SUPI 2;
  • the second network element is an SMF,
  • the third network element is an UDM,
  • the fourth network element is an NRF,
  • the fifth network element is a PCF, and the sixth network element is an UPF.
  • the dual-steering session includes a Radio Access Network (RAN) A and RAN B, wherein UE
  • FIG. 5 is a schematic diagram of the interaction of a multi-access session control provided by an embodiment of the present application.
  • the multi-access session control process is described by taking UE1 as an example in which UE1 first registers with the network through AMF1 and then UE2 registers with the network through AMF2.
  • the multi-access session control process in this embodiment includes the following steps:
  • step 1a UE1 and UE2 register with the network from RAN A and RAN B respectively.
  • Step 1b AMF1 and UDM update user information.
  • step 1c user information is updated between AMF2 and UDM.
  • the DualSteer device is equipped with two UEs, each with two SUPIs.
  • UE 1 is configured with SUPI 1
  • UE 2 is configured with SUPI 2. They register with the network from 3GPP access networks RAN A and RAN B, respectively.
  • AMF 1 obtains the user subscription information related to dual steer from the UDM: SUPI 2 (which shares the same subscription information with SUPI 1).
  • AMF 2 also obtains the user subscription information related to dual steer: SUPI 1.
  • the UDM After AMF 2 successfully registers with the UDM, the UDM notifies AMF 1 of the successful registration of SUPI 2 from the 3GPP access network. For example, if UE 1 first registers with the network through AMF 1, and then UE 2 registers with AMF 2, the UDM notifies UE 1 of the successful registration of UE 2.
  • Step 2 UE1 sends an uplink NAS message to AMF1.
  • the UE 1 on the DualSteer device sends an uplink NAS message (UL NAS) to AMF1.
  • transport the uplink NAS message includes dual steering indication information (also called dual steer indication information), a dual steering session identifier (e.g., PDU session A identifier), and a session establishment request message (e.g., PDU session establishment request message).
  • the PDU session establishment request message also includes parameters such as dual steer indication information and PDU session A identifier.
  • the dual steer indication information may also be called dual steer PDU request information.
  • Step 3 select SMF.
  • AMF 1 selects an SMF that supports the dual steer function based on the dual steer PDU request in the uplink NAS message: AMF 1 can select an appropriate SMF based on local configuration, or provide NRF with dual steer indication information, SUPI 1 and/or SUPI 2, RAT type and other parameters to query and select an appropriate SMF.
  • Step 4 AMF1 sends a session establishment request message to AMF.
  • the session establishment request message is a PDU session establishment request message, that is, AMF 1 sends the PDU session establishment request message (PDU session establishment request) to the SMF selected in step 3 by calling the Nsmf_PDUSession_CreateSMContext service.
  • Step 5 Get session management contract information.
  • SMF obtains the session management contract information related to dual steer from UDM, and includes session establishment indication information in the session management contract information to indicate whether UE1 is allowed to establish a dual steer PDU session.
  • Step 6 Respond to the Nsmf_PDUSession_CreateSMContext request.
  • SMF responds to AMF 1 with the Nsmf_PDUSession_CreateSMContext service request.
  • SMF selects the appropriate PCF for the PDU session: SMF can select the appropriate PCF based on local configuration, or it can provide NRF with dual steer indication, SUPI 1 and/or SUPI 2, RAT type and other parameters to query and select the appropriate PCF.
  • Step 8a SMF initiates the session policy association process to PCF.
  • Step 8b Generate dual-direction conversation rules.
  • the SMF obtains the PCC session management policy rules corresponding to the PDU session.
  • the PCC rules may include the dual steer session rules subsequently derived by the SMF for use by the UE and UPF.
  • Step 9a select UPF.
  • the SMF selects an appropriate UPF for PDU Session A.
  • the SMF can select an appropriate UPF based on local configuration or by querying the NRF for a suitable UPF by providing parameters such as the dual steer indication, SUPI 1 and/or SUPI 2, and RAT type.
  • the SMF initiates the N4 session management process with the selected UPF and sends the N4 rules containing the dual steer information for use by the UPF.
  • RAN A or RAN B is a 4G access network
  • a PDN connection can be established through the RAN.
  • the dual steering session rule used by the UE may include one or more rule information, which is used to instruct UE1 or UE2 which steer PDU session to use to send or migrate the relevant flow. For example:
  • rule a represents a User Datagram Protocol (UDP) message with a destination address of 1.2.3.4; if PDU session A is valid, PDU session A is used to send it, and PDU session A is represented by the address corresponding to PDU session A, which may be an IPv4 address and/or an IPv6 prefix/address; otherwise, PDU session B is used to send it.
  • UDP User Datagram Protocol
  • Step 10a send Namf_Communication_N1N2MessageTransfer service to AMF1.
  • Step 10b Send a downlink NAS message to UE1.
  • SMF sends the PDU session establishment response to UE1 through the Namf_Communication_N1N2MessageTransfer service, and the PDU session establishment response includes the dual steer rules for UE1 to use.
  • Step 11 SMF registers with UDM.
  • SMF registers the relevant information of the PDU session with UDM, for example, the relevant information of the PDU session (such as PDU session A), including SUPI 1, the session identifier corresponding to PDU session A, the SMF information serving the PDU session (SMF IP address, network function (NF) identifier), the PCF identifier serving the PDU session, the data network name (DNN), the fully qualified domain name (FQDN) of SMF+PGW-C (session management function + PDN gateway control (PGW-C)), dual turn indication information and RAT type.
  • the relevant information of the PDU session such as PDU session A
  • SUPI 1 the relevant information of the PDU session
  • SMF IP address the SMF information serving the PDU session
  • NF network function
  • PCF identifier serving the PDU session
  • DNN data network name
  • FQDN fully qualified domain name
  • SMF+PGW-C session management function + PDN gateway control (PGW-C)
  • dual turn indication information and RAT type for example, the
  • Step 12 UE2 sends an uplink NAS message to AMF2.
  • the UE 2 on the DualSteer device sends an uplink NAS message to AMF2.
  • the uplink NAS message includes a dual steer PDU request, the identifier of PDU session B, and a PDU session establishment request message.
  • the PDU session establishment request message also includes parameters such as the dual steer PDU request indication and the PDU session identifier.
  • Step 13 AMF2 obtains session-related information from UDM.
  • AMF2 If AMF2 does not have the session-related information for the DualSteer devices (SUPI 1 and/or SUPI 2) obtained from the UDM, AMF2 requests the session-related information from the UDM. The UDM can also push updated session-related information for the DualSteer devices to AMF2. Based on the shared DualSteer subscription information between SUPI 2 and SUPI 1, as well as the DualSteer PDU request received in step 12, AMF2 selects the SMF that serves PDU Session A from the session-related data. This allows AMF2 to select the same SMF for PDU Session A as for PDU Session B. The association between SUPI2 and SUPI1 allows AMF2 to obtain information about PDU Session A from SUPI1.
  • AMF 2 sends a PDU session establishment request message to the SMF selected in step 13 by calling the Nsmf_PDUSession_CreateSMContext service.
  • the SMF responds to the Nsmf_PDUSession_CreateSMContext service request to AMF 2.
  • Step 15 SMF initiates a session policy association process to PCF.
  • the SMF initiates the session policy association process to PCF and obtains the PCC rules corresponding to the PDU session (PDU session B).
  • the PCC rules may include the dual steer session rules subsequently exported by SMF for use by UE and UPF (if step 8b is not executed or the dual steer session rules need to be updated).
  • the SMF selects the same UPF for PDU Session B as for PDU Session A based on the dual steer PDU request. Similar to steps 8b-10b, the PCF provides the SMF and UPF with the dual steer session rules for PDU Session B used by UE 2 and the UPF, respectively.
  • the SMF registers the session-related information of PDU session B with the UDM, including SUPI 2, PDU session identifier, SMF information serving the PDU session (SMF IP address, NF identifier), PCF identifier serving the PDU session, DNN, SMF+PGW-C fully qualified domain name (FQDN), dual steer indication, RAT type, and the identifier of the associated dual steer PDU session A.
  • SUPI 2 PDU session identifier
  • SMF information serving the PDU session SMF IP address, NF identifier
  • PCF identifier serving the PDU session
  • DNN DNN
  • dual steer indication dual steer indication
  • RAT type identifier of the associated dual steer PDU session A.
  • SMF may send updated dual steer session rules to UE1.
  • Example 2 uses the same scenario and process as Example 1. The difference is that the DualSteer device's contract information can specify a specific PDU session identifier as the Dual Steer PDU session. Generally speaking, a terminal can establish multiple PDU sessions, each with a session identifier.
  • RAN A or RAN B is a 4G access network
  • a PDN connection is established through the RAN.
  • the steps that differ from Example 1 include:
  • Step 5 SMF obtains the session management contract information related to dual steer from UDM, including:
  • a specific dual steer PDU session identifier that is, the session identifier designated as the dual steer PDU session or the identifier of the PDN connection.
  • the SMF further processes the dual steer PDU session establishment request.
  • the SMF checks whether the PDU session ID in the PDU session establishment request message from the UE is consistent with the session identifier specified in b). If they are consistent, the dual steer PDU session establishment request is further processed. Otherwise, in step 6, a PDU session reject message is sent to the UE with a cause value indicating that the PDU session identifier is not the specified identifier for the dual steer PDU session.
  • Example 3 The scenario and process of Example 3 are the same as those of Example 1. The difference is that the dual-steering session rule used by the UE uses the PDU session identifier (denoted as PDU session ID) and the terminal identifier (for example, SUPI) to specify which connection to use to send the relevant flow.
  • PDU session ID the PDU session identifier
  • SUPI terminal identifier
  • Rule a) indicates that for a UDP packet with a destination address of 1.2.3.4, if PDU session A is valid, it is sent using PDU session A, which is represented by the ID of PDU session A and SUPI1; otherwise, it is sent using PDU session B.
  • the dual steer session rule can use the PDN connection ID + SUPI/IMSI to specify the use of the PDN connection to send related flows.
  • FIG. 6 is a schematic diagram of another multi-access session control interaction provided by an embodiment of the present application. As shown in Figure 6, this embodiment describes the execution of dual steer by PDU Session A and PDU Session B, which have already been established by the dual steer device.
  • the process of UE 1 restoring the connection due to the downlink message network triggering includes the following steps:
  • FIG7 is a block diagram of a session control device provided by an embodiment of the present application. This embodiment is applied to a first network element. As shown in FIG7 , the session control device in this embodiment includes: a receiver 710 and an acquisition module 720.
  • the uplink signaling message includes: a dual-direction session identifier and a session establishment request message; wherein the session establishment request message includes at least dual-direction indication information.
  • the session control apparatus applied to the first network element further includes:
  • the receiver 710 is further configured to receive session related information pushed by a third network element
  • the selector is configured to select a second network element that is serving the established dual-direction session from the session related information based on the shared subscription information of the first subscription identifier and the second subscription identifier, and the dual-direction indication information.
  • the session management subscription information further includes: a specific session identifier for performing the dual-direction function.
  • the transmitter is further configured to receive a notification message sent by the second network element through the first network element serving the second terminal, so that the first terminal activates the dual-steering user plane; wherein the notification message includes at least: the first subscription identifier, and the session identifier corresponding to the first terminal.
  • the session control device provided in this embodiment is configured to implement the session control method applied to the first network element in the embodiment shown in FIG2 .
  • the implementation principle and technical effects of the session control device provided in this embodiment are similar and will not be described in detail here.
  • FIG8 is a block diagram of another session control device provided by an embodiment of the present application. This embodiment is applied to a second network element. As shown in FIG8 , the session control device in this embodiment includes: an acquisition module 810.
  • the acquisition module 810 is configured to obtain the dual-steering session rules corresponding to the first communication device; wherein the dual-steering session rules are used to indicate the dual-steering session adopted by the first communication device for transmitting data streams; wherein the second network element is a network element that supports the dual-steering function selected by the first network element according to the dual-steering indication information sent by the first communication device.
  • a first communication device includes a first terminal and a second terminal; wherein the first terminal is configured with a first subscription identifier; and the second terminal is configured with a second subscription identifier; and a session control apparatus applied to a second network element further includes:
  • a receiver configured to receive a session establishment request message sent by the first network element
  • the acquisition module 810 is also configured to obtain session management contract information carrying at least session establishment indication information from a third network element; wherein the session establishment indication information is used to indicate whether a dual-direction session is allowed to be established; the session management contract information also includes: a first contract identifier; a second contract identifier; and shared contract information of the first contract identifier and the second contract identifier.
  • An establishing module configured to establish a dual-direction session corresponding to the first terminal based on the session establishment request message
  • the transmitter is configured to send dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type to the fourth network element, so as to select a fifth network element supporting the dual-steering function through the fourth network element.
  • the session control apparatus applied to the second network element further includes:
  • the initiating module is configured to initiate a session policy association process to the fifth network element and obtain a dual-direction session rule corresponding to the first terminal; wherein the dual-direction session rule is used to indicate the dual-direction session used by the first terminal to transmit data streams.
  • the session control apparatus applied to the second network element further includes:
  • the transmitter is further configured to send dual-steering indication information, the first subscription identifier and/or the second subscription identifier, and the RAT type to the fourth network element, so as to select a sixth network element that supports the dual-steering function through the fourth network element.
  • the session control apparatus applied to the second network element further includes:
  • the registration module is configured to register the session related information of the dual-direction session corresponding to the first terminal with the third network element; wherein the session related information at least includes: dual-direction indication information, RAT type, and dual-direction session identifier.
  • the dual-direction session rule indicates the dual-direction path adopted by the first terminal through at least one of the following parameters: a connection identifier and a subscription identifier; and a connection address.
  • the session management subscription information further includes: a specific session identifier for performing the dual-direction function.
  • the session control apparatus applied to the second network element further includes:
  • the transmitter is also configured to send a session establishment response message carrying at least session rejection establishment indication information to the first network element when the dual-redirection session identifier carried in the session establishment request message is inconsistent with the specific session identifier; wherein the session rejection establishment indication information is used to indicate that the dual-redirection session identifier is not the specific session identifier of the dual-redirection session.
  • the first terminal is in an idle state, and the second terminal is in a connected state;
  • the session control apparatus applied to the second network element further includes:
  • the transmitter is further configured to send a notification message to the first network element serving the second terminal, so that the first terminal activates the dual-steering user plane; wherein the notification message includes at least: the first subscription identifier, and the session identifier corresponding to the first terminal.
  • the session control device provided in this embodiment is configured to implement the session control method applied to the second network element in the embodiment shown in FIG3 .
  • the implementation principle and technical effects of the session control device provided in this embodiment are similar and will not be described in detail here.
  • FIG9 is a block diagram of another session control device provided in an embodiment of the present application. This embodiment is applied to a third network element. As shown in FIG9 , the session control device in this embodiment includes: a transmitter 910.
  • Transmitter 910 is configured to send session management subscription information to the first network element so that the first network element performs network registration based on the session management subscription information; wherein the session management subscription information includes at least: a first subscription identifier; a second subscription identifier; shared subscription information of the first subscription identifier and the second subscription identifier; wherein the first subscription identifier corresponds to the first terminal in the first communication device; and the second subscription identifier corresponds to the second terminal in the first communication device.
  • the session control apparatus applied to the third network element further includes:
  • the transmitter 910 is further configured to send session management subscription information carrying at least session establishment indication information to the second network element; wherein the session establishment indication information is used to indicate whether to allow establishment of a dual-direction session.
  • the session control apparatus applied to the third network element further includes:
  • the session control apparatus applied to the third network element further includes:
  • the push module is configured to push session-related information to the first network element, so that the first network element selects the second network element that is serving the established dual-direction session from the session-related information based on the shared subscription information of the first subscription identifier and the second subscription identifier, and the dual-direction indication information.
  • the session control device provided in this embodiment is configured to implement the session control method applied to the third network element in the embodiment shown in Figure 4.
  • the implementation principle and technical effects of the session control device provided in this embodiment are similar and will not be repeated here.
  • the memory 1020 can be configured to store software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the device of any embodiment of the present application (for example, the receiver 710 and acquisition module 720 in the session control device applied to the first network element).
  • the memory 1020 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and applications required for at least one function; the data storage area may store data created according to the use of the device, etc.
  • the memory 1020 may include a high-speed random access memory and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.
  • the memory 1020 may further include a memory remotely located relative to the processor 1010, and these remote memories may be connected to the device via a network.
  • a network examples include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the device provided above can be configured to execute the session control method applied to the first network element provided in any of the above embodiments, and have corresponding functions and effects.
  • the above-provided device can be configured to execute the session control method applied to the second network element provided in any of the above-mentioned embodiments, and have corresponding functions and effects.
  • the above-provided device can be configured to execute the session control method applied to the third network element provided in any of the above-mentioned embodiments, and have corresponding functions and effects.
  • An embodiment of the present application also provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are executed by a computer processor, they are used to execute a session control method applied to a first network element.
  • the method includes: receiving an uplink signaling message sent by a first communication device that carries at least dual-steering indication information; selecting a second network element that supports the dual-steering function based on the dual-steering indication information, so that the second network element obtains a dual-steering session rule corresponding to the first communication device; wherein the dual-steering session rule is used to indicate the dual-steering session adopted by the first communication device for transmitting data streams.
  • An embodiment of the present application also provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions are executed by a computer processor, they are used to execute a session control method applied to a second network element.
  • the method includes: obtaining a dual-steering session rule corresponding to a first communication device; wherein the dual-steering session rule is used to indicate a dual-steering session adopted by the first communication device for transmitting a data stream; wherein the second network element is a network element that supports the dual-steering function selected by the first network element according to the dual-steering indication information sent by the first communication device.
  • the embodiment of the present application further provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a session control method applied to a third network element, the method comprising: sending session management subscription information to a first network element, so that the first network element performs network registration based on the session management subscription information; wherein the session management subscription information at least includes: a first subscription identifier; a second subscription identifier; shared subscription information of the first subscription identifier and the second subscription identifier; wherein the first subscription identifier corresponds to a first terminal in a first communication device; the second subscription identifier corresponds to a first terminal in a first communication device; Corresponding to the second terminal in the communication device.
  • user equipment encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a car-mounted mobile station.
  • various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
  • Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware.
  • the computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
  • ISA instruction set architecture
  • Any block diagram of the logic flow in the drawings of this application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • the computer program may be stored on a memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical storage devices and systems (digital versatile discs (DVD) or compact discs (CD)), etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor may be of any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), and a processor based on a multi-core processor architecture.
  • a general-purpose computer such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), and a processor based on a multi-core processor architecture.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • An embodiment of the present application also provides a computer program product, including a computer program, which, when executed by a processor, can implement the session control method provided in any embodiment of the present application.
  • the computer program product may be written in one or more programming languages or a combination thereof to write computer program code for performing the operations of the present application, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" or similar programming languages.
  • the program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server.
  • the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN).
  • the user computer may, alternatively, be connected to an external computer (eg, via the Internet using an Internet service provider).

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Abstract

本申请提出一种会话控制方法、设备及存储介质。应用于第一网元的会话控制方法包括:接收第一通信设备发送的至少携带双转向指示信息的上行信令消息;根据所述双转向指示信息选择支持双转向功能的第二网元,以使所述第二网元获取所述第一通信设备对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一通信设备所采用的用于传输数据流的双转向会话。

Description

会话控制方法、设备及存储介质 技术领域
本申请涉及通信技术领域,具体涉及一种会话控制方法、设备及存储介质。
背景技术
随着双转向(DualSteer)的业务需求的不断增加,DualSteer设备可以连接到相同或不同公共陆地移动网络(Public Land Mobile Network,PLMN)(即核心网)的两个第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)接入网络之间,比如,应用场景包括使用相同或不同的无线接入技术(Radio Access Technology,RAT)类型的3GPP接入网:地面新空口(New Radio,NR)和NR,或NR+演进型通用陆地无线接入(Evolved Universal Terrestrial Radio AccessE-UTRA),地面NR+非地面NR等。
假设DualSteer设备由两个终端(User Equipment,UE)组成,分别配置签约永久标识符1(Subscription Permanent Identifier1,SUPI 1)和SUPI 2。此时,如何数据流的转向(steer)和/或切换(switch),是一个亟待解决的问题。
发明内容
有鉴于此,本申请实施例提供一种会话控制方法、设备及存储介质,实现了数据流的转向和控制。
本申请实施例提供一种会话控制方法,应用于第一网元,包括:
接收第一通信设备发送的至少携带双转向指示信息的上行信令消息;
根据所述双转向指示信息选择支持双转向功能的第二网元,以使所述第二网元获取所述第一通信设备对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一通信设备所采用的用于传输数据流的双转向会话。
本申请实施例提供一种会话控制方法,应用于第二网元,包括:
获取第一通信设备对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一通信设备所采用的用于传输数据流的双转向会话;其中,所述第二网元为通过第一网元根据所述第一通信设备发送的双转向指示信息选择支持双转向功能的网元。
本申请实施例提供一种会话控制方法,应用于第三网元,包括:
向第一网元发送会话管理签约信息,以使所述第一网元基于所述会话管理 签约信息进行网络注册;其中,所述会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;其中,所述第一签约标识符与第一通信设备中的第一终端对应;所述第二签约标识符与第一通信设备中的第二终端对应。
本申请实施例提供一种通信设备,包括:存储器,以及一个或多个处理器;
所述存储器,配置为存储一个或多个程序;
当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现上述任一实施例所述的方法。
本申请实施例提供一种存储介质,所述存储介质存储有计算机程序,所述计算机程序被处理器执行时实现上述任一实施例所述的方法。
附图说明
图1是相关技术提供的一种双转向设备与网络侧的结构框图;
图2是本申请实施例提供的一种会话控制方法的流程图;
图3是本申请实施例提供的另一种会话控制方法的流程图;
图4是本申请实施例提供的又一种会话控制方法的流程图;
图5是本申请实施例提供的一种多接入会话控制的交互示意图;
图6是本申请实施例提供的另一种多接入会话控制的交互示意图;
图7是本申请实施例提供的一种会话控制装置的结构框图;
图8是本申请实施例提供的另一种会话控制装置的结构框图;
图9是本申请实施例提供的又一种会话控制装置的结构框图;
图10是本申请实施例提供的一种通信设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行说明。以下结合实施例附图对本申请进行描述,所举实例仅用于解释本申请,并非用于限定本申请的范围。
图1是相关技术提供的一种双转向设备与网络侧的结构框图。如图1所示,双转向设备(Dualsteer Device)中包括两个终端,分别为第一终端(记为UE1)和第二终端(记为UE2)。UE1和UE2可以通过两个不同的基站进行网络注册,比如,UE1可以通过NR、接入和移动管理功能1(Access and Mobility Management Function1,AMF1)、会话管理功能(Session Management Function,SMF)和用户面功能1(User Plane Function1,UPF1)进行网络注册,也可以通过NR和 UPF1进行网络注册;UE2可以通过NTN NR、AMF2、SMF和UPF2进行网络注册,也可以通过非地面网络(Non-Terrestrial Network,NTN)NR和UPF2进行网络注册。然后,在实际通信过程中,如何进行路径的选择;以及,若可以通过多条路径同时传输数据,但由于当前所选择路径的信号强度较低,如何转到其他路径上;以及,在UE1和UE2开机注册之后,对现有的流程存在哪些影响,是一个亟待解决的问题。
需要说明的是,DualSteer设备支持跨两个3GPP接入网络的流量转向和用户数据(用于不同业务)交换,DualSteer设备有两个签约用户(UE1和UE2,对应两个SUPI),共享来自同一运营商的同一个签约配置文件。
在一实施例中,图2是本申请实施例提供的一种会话控制方法的流程图。本实施例应用于双转向设备执行数据流的转向和/或切换的情况。本实施例可以由第一网元执行。示例性地,第一网元可以包括AMF1和AMF2。在一示例中,AMF1和AMF2可以为同一个AMF。如图2所示,本实施例包括:S210-S220。
S210、接收第一通信设备发送的至少携带双转向指示信息的上行信令消息。
其中,第一通信设备可以理解为双转向设备。双转向指示信息用于指示建立双转向会话的请求信息;比如,双转向会话可以为双转向协议数据单元(Protocol Data Unit,PDU)会话。上行信令消息可以包括上行非接入层(Non-Access Stratum,NAS)报文。在一示例中,第一通信设备可以支持两个3GPP接入网络的流量转向和用户数据交换,即在第一通信设备中可以包括两个签约用户,即两个终端,分别为第一终端(记为UE1)和第二终端(记为UE2),并且,这两个终端共享来自同一运营商的同一个签约配置文件,即共享签约信息。
S220、根据双转向指示信息选择支持双转向功能的第二网元,以使第二网元获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话。
在一示例中,可以先通过第一终端向第一网元发送至少携带双转向指示信息的上行信令消息,以获取第一终端对应的双转向会话规则;然后再通过第二终端向第一网元发送至少携带双转向指示信息的上行信令消息,以获取第二终端对应的双转向会话规则。在一示例中,第一终端和第二终端可以对应同一个第一网元,也可以分别对应一个第一网元。比如,第一终端对应AMF1,第二终端对应AMF2。在一示例中,AMF1和AMF2可以为同一个网元。
在一实施例中,第一通信设备包括第一终端和第二终端;其中,第一终端配置第一签约标识符;第二终端配置第二签约标识符;应用于第一网元的会话控制方法,还包括:
从第三网元获取会话管理签约信息;其中,会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;
基于会话管理签约信息进行网络注册。
在一示例中,第三网元可以为统一数据管理(Unified Data Management,UDM)网元。可以对第一终端和第二终端分别配置一个签约标识符,比如,签约标识符可以为签约永久标识符(Subscription Permanent Identifier,SUPI)。在一示例中,第一通信设备中的两个终端可以通过两个不同的3GPP接入网注册到网络中,在注册过程中,可以是第一终端先通过对应的第一网元注册到网络,然后再通过第二终端对应的第一网元注册到网络;也可以是第二终端先通过对应的第一网元注册到网络,然后再通过第一终端对应的第一网元注册到网络。在一示例中,若第一终端先通过对应的第一网元注册到网络,则与第一终端对应的第一网元可以从第三网元获取到会话管理签约信息,并在该会话管理签约信息包括:第二终端对应的第二签约标识符,以及第一签约标识符和第二签约标识符的共享签约信息;然后,第二终端再通过对应的第一网元也获取到会话管理签约信息,并在该会话管理签约信息包括:第一终端对应的第一签约标识符,以及第一签约标识符和第二签约标识符的共享签约信息。
在一实施例中,应用于第一网元的会话控制方法,还包括:接收第三网元反馈的第二终端成功注册到网络的指示信息。在一示例中,可以先通过第一终端对应的第一网元进行网络注册,然后再通过第二终端对应的第一网元进行网络注册,并在通过第二终端对应的第一网元成功注册到网络之后,第三网元可以向第一终端对应的第一网元通知第二终端成功注册到网络的指示信息。
在一实施例中,上行信令消息包括:双转向会话标识和会话建立请求消息;其中,会话建立请求消息至少包括双转向指示信息。会话建立请求消息用于请求建立PDU会话的请求消息。在一示例中,会话建立请求消息还包括:双转向会话标识。在一示例中,双转向会话标识用于指示第一终端或第二终端对应的PDU会话标识。在一示例中,在通过第一终端向对应的第一网元发送上行信令消息的情况下,上行信令消息包括第一终端对应的PDU会话标识,相对应的,会话建立请求消息中包括的双转向会话标识为第一终端对应的PDU会话标识;在一示例中,在通过第二终端向对应的第一网元发送上行信令消息的情况下,上行信令消息包括第二终端对应的PDU会话标识,相对应的,会话建立请求消息中包括的双转向会话标识为第二终端对应的PDU会话标识。
在一实施例中,应用于第一网元的会话控制方法,还包括:向第二网元发送会话建立请求消息,以使第二网元从第三网元获取至少携带会话建立指示信 息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话。在一示例中,会话建立指示信息用于指示是否允许第一终端或第二终端建立双转向会话,也可以理解为,会话建立指示信息用于指示第一终端或第二终端是否支持双转向功能。若第一终端或第二终端支持双转向功能,也可以理解为允许第一终端或第二终端建立双转向会话。
在一实施例中,根据双转向指示信息选择支持双转向功能的第二网元,包括下述之一:
根据本地配置信息和双转向指示信息选择支持双转向功能的第二网元;
向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第二网元。在一示例中,第四网元可以为网络仓储功能(Network Repository Function,NRF)。在一示例中,在第一终端先注册到网络的情况下,可以通过第一终端对应的第一网元根据上行信令消息中的双转向指示信息选择支持双转向功能的第二网元,比如,第一终端对应的第一网元可以根据本地配置和双转向指示信息选择支持双转向功能的第二网元;也可以向NRF提供双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过NRF选择支持双转向功能的第二网元。
在一实施例中,应用于第一网元的会话控制方法,还包括:
接收第三网元推送的会话相关信息;
根据第一签约标识符和第二签约标识符的共享签约信息,以及双转向指示信息,从会话相关信息中选择正在服务于已建立双转向会话的第二网元。在一示例中,在第一终端先注册到网络,然后第二终端再注册到网络的情况下,可以通过第二终端对应的第一网元向第三网元获取会话相关信息,也可以通过第三网元向第二终端对应的第一网元推送存在更新的会话相关信息。通过第二终端对应的第一网元根据第一签约标识符和第二签约标识符的共享签约信息,以及双转向指示信息,从会话相关信息中选择正在服务于已建立双转向会话(即第一终端对应的PDU会话)的第二网元。
在一实施例中,会话管理签约信息还包括:用于执行双转向功能的特定会话标识。在实际通信过程中,一个终端可以建立多条PDU会话,并且,每条PDU会话配置一个唯一的会话标识。可以在会话管理签约信息中指定特定会话标识作为双转向会话的标识。
在一实施例中,第一终端处于空闲态,且第二终端处于连接态;应用于第一网元的会话控制方法,还包括:通过服务于第二终端的第一网元接收第二网元发送的通知消息,以使第一终端激活双转向用户面;其中,通知消息至少包括:第一签约标识符,以及第一终端对应的会话标识。在一示例中,通知消息 可以为:Namf_Communication_N1N2MessageTransfer消息。在第二网元接收到发往第一终端的下行数据,并且,下行数据与第一终端所对应PDU会话有关的情况下,第二网元可以向服务于第二终端的第一网元发送通知消息,以使第二终端对应的第一网元向第二终端通知第一终端的下行报文和关联的双转向会话,以使第二终端将接收到的通知消息传输至第一终端,第一终端可以发起服务请求流程,实现了避免直接向第一终端的空口发送寻呼消息的过程,从而节省了第一终端对应的无线资源。
在一实施例中,双转向会话规则通过至少下述参数之一指示第一终端所采用的双转向路径:连接标识和签约标识符;连接地址。在一示例中,签约标识符可以为SUPI,也可以为国际移动用户识别码(International Mobile Subscriber Identity,IMSI)。在一示例中,第一终端或第二终端对应的3GPP网络为4G接入网络的情况下,连接标识可以为分组数据网(Packet Data Network,PDN)连接标识,连接地址可以为PDN连接地址;在一示例中,第一终端或第二终端对应的3GPP网络为5G接入网络的情况下,连接标识可以为PDU会话标识,连接地址可以为PDU会话地址;其中,PDU会话地址可以包括IPv4地址和/或IPv6前缀/地址。
在一实施例中,图3是本申请实施例提供的另一种会话控制方法的流程图。本实施例应用于双转向设备执行数据流的转向和/或切换的情况。本实施例可以由第二网元执行。如图3所示,本实施例包括:S310。
S310、获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话;其中,第二网元为通过第一网元根据第一通信设备发送的双转向指示信息选择支持双转向功能的网元。
在一实施例中,第一通信设备包括第一终端和第二终端;其中,第一终端配置第一签约标识符;第二终端配置第二签约标识符;应用于第二网元的会话控制方法,还包括:
接收第一网元发送的会话建立请求消息;
从第三网元获取至少携带会话建立指示信息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话;会话管理签约信息还包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息。
在一实施例中,应用于第二网元的会话控制方法,还包括:
基于会话建立请求消息建立第一终端对应的双转向会话;
向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第五网元。示例性地,第五网元可以为策略控制功能(Policy Control Function,PCF)。在一示例中,第二网元可以为第一终端对应的双转向会话选择合适的第五网元,比如,可以根据本地配置信息选择合适的第五网元,也可以向第四网元提供双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第五网元。
在一实施例中,应用于第二网元的会话控制方法,还包括:向第五网元发起会话策略关联流程,并获取第一终端对应的双转向会话规则;其中,双转向会话规则用于指示第一终端所采用的用于传输数据流的双转向会话。在一示例中,第二网元可以向第五网元发起会话策略关联流程,以获取第一终端所对应双转向会话的策略控制和计费(Policy Control and Charging,PCC)规则,并在该PCC规则中可以包括供第一终端和第六网元使用的双转向会话规则。
在一实施例中,应用于第二网元的会话控制方法,还包括:向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第六网元。示例性地,第六网元可以为UPF。在一示例中,第二网元可以为第一终端对应的双转向会话选择合适的第六网元,比如,可以根据本地配置信息选择合适的第六网元,也可以向第四网元提供双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第六网元。
在一实施例中,应用于第二网元的会话控制方法,还包括:向第三网元注册第一终端所对应双转向会话的会话相关信息;其中,会话相关信息至少包括:双转向指示信息、RAT类型,以及与双转向会话标识。
在一实施例中,双转向会话规则通过至少下述参数之一指示第一终端所采用的双转向路径:连接标识和签约标识符;连接地址。
在一实施例中,会话管理签约信息还包括:用于执行双转向功能的特定会话标识。
在一实施例中,应用于第二网元的会话控制方法,还包括:在会话建立请求消息中携带的双转向会话标识与特定会话标识不一致的情况下,向第一网元发送至少携带会话拒绝建立指示信息的会话建立响应消息;其中,会话拒绝建立指示信息用于指示双转向会话标识并非双转向会话的特定会话标识。在会话管理签约信息中包括用于执行双转向功能的特定会话标识的情况下,第二网元需要判断双转向会话标识与特定会话标识是否一致,若两者一致,则第二网元 处理会话建立请求消息;若两者不一致,则第二网元向第一网元发送至少携带会话拒绝建立指示信息的会话建立响应消息,并通过第一网元将该会话建立响应消息转发至对应的第一终端或第二终端,以使第一终端或第二终端知晓双转向会话标识并不是双转向会话的特定会话标识。
在一实施例中,第一终端处于空闲态,且第二终端处于连接态;应用于第二网元的会话控制方法,还包括:向服务于第二终端的第一网元发送通知消息,以使第一终端激活双转向用户面;其中,通知消息至少包括:第一签约标识符,以及第一终端对应的会话标识。
需要说明的是,应用于第二网元的会话控制方法中涉及到的第一网元、第二网元、第三网元、双转向会话规则、会话管理签约信息、第一签约标识符、第二签约标识符、双转向会话标识、连接标识、签约标识符和连接地址的解释,参见上述应用于第一网元的会话控制方法中对应参数的描述,在此不再赘述。
在一实施例中,图4是本申请实施例提供的又一种会话控制方法的流程图。本实施例应用于双转向设备执行数据流的转向和/或切换的情况。本实施例可以由第三网元执行。如图4所示,本实施例包括:410。
S410、向第一网元发送会话管理签约信息,以使第一网元基于会话管理签约信息进行网络注册;其中,会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;其中,第一签约标识符与第一通信设备中的第一终端对应;第二签约标识符与第一通信设备中的第二终端对应。
在一实施例中,应用于第三网元的会话控制方法,还包括:向第二网元发送至少携带会话建立指示信息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话。
在一实施例中,应用于第三网元的会话控制方法,还包括:接收第二网元注册的第一终端所对应双转向会话的会话相关信息;其中,会话相关信息至少包括:双转向指示信息和RAT类型。
在一实施例中,应用于第三网元的会话控制方法,还包括:向第一网元推送会话相关信息,以使第一网元根据第一签约标识符和第二签约标识符的共享签约信息,以及双转向指示信息,从会话相关信息中选择正在服务于已建立双转向会话的第二网元。
在一实施例中,应用于第三网元的会话控制方法,还包括:接收第二网元注册的第二终端所对应双转向会话的会话相关信息;其中,会话相关信息至少 包括:双转向指示信息、RAT类型和关联的双转向会话标识。
需要说明的是,应用于第二网元的会话控制方法中涉及到的第一网元、第二网元、第三网元、双转向会话规则、会话管理签约信息、第一签约标识符、第二签约标识符、双转向会话标识、连接标识、签约标识符和连接地址的解释,参见上述应用于第一网元的会话控制方法中对应参数的描述,在此不再赘述。
需要说明的是,在下述实施例(实施例1至实施例4)中,以下述参数为例,对多接入会话控制过程进行说明。其中,第一通信设备为Dualsteer设备,并且,Dualsteer设备包括第一终端(记为UE1)和第二终端(记为UE2);3GPP接入网包括无线接入网(Radio Access Network,RAN)A和RAN B,其中,UE1对应RAN A,UE2对应RAN B;第一网元包括两个网元(AMF1和AMF2),其中,第一网元(记为AMF1)对应UE1,第一网元(记为AMF2)对应UE2;UE1配置SUPI 1,UE 2配置SUPI 2;第二网元为SMF,第三网元为UDM,第四网元为NRF,第五网元为PCF,第六网元为UPF,UE1建立的双转向会话为PDU会话A;UE2建立的双转向会话为PDU会话B。
实施例1
图5是本申请实施例提供的一种多接入会话控制的交互示意图。在本实施例中,以UE1先通过AMF1注册到网络,然后UE2再通过AMF2注册到网络为例,对多接入会话控制过程进行说明。如图5所示,本实施例中的多接入会话控制过程包括如下步骤:
步骤1a,UE1和UE2分别从RAN A和RAN B注册到网络。
步骤1b,AMF1与UDM之间进行用户信息更新。
步骤1c,AMF2与UDM之间进行用户信息更新。
在1a-1c的实现过程中,DualSteer设备配有两个UE,并分别有两个SUPI,UE 1配置SUPI 1,UE 2配置SUPI 2,先后从3GPP接入网RAN A和3GPP接入网RAN B注册到网络中。在注册流程中,AMF 1向UDM获取到和dual steer相关的用户签约信息:SUPI 2(和SUPI 1共享一套签约信息)。类似地,AMF 2也获取到和dual steer相关的用户签约信息:SUPI 1。AMF 2成功向UDM注册后,UDM向AMF 1通知SUPI 2从3GPP access注册到网络。比如,如果是UE1先通过AMF1先注册到网络,然后UE2再通过AMF2注册到网络,UDM向UE1通知UE2已成功注册。
步骤2,UE1向AMF1发送上行NAS报文。
DualSteer设备上的UE 1向AMF1发送上行NAS报文(即UL NAS  Transport),上行NAS报文包含双转向指示信息(也可以称为dual steer指示信息)、双转向会话标识(比如,PDU会话A标识)和会话建立请求消息(比如,PDU会话建立请求消息),PDU会话建立请求消息中也包含dual steer指示信息,PDU会话A标识等参数。在一示例中,dual steer指示信息也可以称为dual steer PDU请求信息。
步骤3,选择SMF。
AMF 1根据上行NAS报文中的dual steer PDU请求选择支持双转向(dual steer)功能的SMF:AMF 1可以根据本地配置选择合适的SMF,也可以向NRF提供dual steer指示信息、SUPI 1和/或SUPI 2、RAT类型等参数来查询选择到合适的SMF。
步骤4,AMF1向AMF发送会话建立请求消息。
示例性地,会话建立请求消息为PDU会话建立请求消息,即AMF 1将PDU会话建立请求消息(PDU session establishment request)消息通过调用Nsmf_PDUSession_CreateSMContext服务发送到步骤3选择到的SMF。
步骤5,获取会话管理签约信息。
SMF从UDM获取到与dual steer相关的会话管理签约信息,并在该会话管理签约信息中包括会话建立指示信息,用于指示是否允许UE1建立dual steer PDU会话。
步骤6,回复Nsmf_PDUSession_CreateSMContext请求。
SMF向AMF 1回复Nsmf_PDUSession_CreateSMContext服务请求。
步骤7,选择PCF。
SMF为该PDU会话选择合适的PCF:SMF可以根据本地配置选择合适的PCF,也可以向NRF提供dual steer指示、SUPI 1和/或SUPI 2、RAT类型等参数来查询选择到合适的PCF。
步骤8a,SMF向PCF发起会话策略关联流程。
步骤8b,生成双转向会话规则。
在步骤8a-8b中,SMF获取该PDU会话对应的PCC会话管理策略规则,PCC规则中可以包括后续SMF分别导出的供UE和UPF使用的dual steer会话规则。
步骤9a,选择UPF。
步骤9b,发起N4会话管理流程。
在步骤9a和9b过程中,SMF为该PDU会话A选择合适的UPF:SMF可以根据本地配置选择合适的UPF,也可以通过向NRF提供dual steer指示、SUPI 1和/或SUPI 2、RAT类型等参数来查询选择到合适的UPF。SMF向选择的UPF发起N4会话管理流程,SMF可以将包含供UPF使用的带dual steer信息的N4规则发给UPF。
此外,在RAN A或者RAN B是4G接入网络的情况下,可以通过该RAN建立的是PDN连接。
UE使用的双转向会话规则可以包含一或者多条规则信息,用于指示UE1或UE2采用哪个steer PDU会话来发送或者迁移相关的流。举例如下:
假设双转向会话规则为规则a),并且,该规则a)表示对于目的地址为1.2.3.4的用户数据报协议(User Datagram Protocol,UDP)报文;如果PDU会话A是有效状态,则使用PDU会话A发送,PDU会话A采用PDU会话A对应的地址来表示,该地址可能是IPv4地址和/或IPv6前缀/地址;否则使用PDU会话B来发送。
步骤10a,向AMF1发送Namf_Communication_N1N2MessageTransfer服务。
步骤10b,向UE1发送下行NAS报文。
在10a-10b中,SMF通过Namf_Communication_N1N2MessageTransfer服务将PDU会话建立响应发送给UE1,并在该PDU会话建立响应中包含供UE1使用的dual steer规则。
步骤11,SMF向UDM注册。
SMF向UDM注册该PDU会话相关信息,比如,PDU会话(比如PDU会话A)的相关信息,包括SUPI 1、PDU会话A对应的会话标识、服务该PDU会话的SMF信息(SMF IP地址、网络功能(Network Function,NF)标识)、服务该PDU会话的PCF标识、数据网络名称(Data Network Name,DNN)、SMF+PGW-C(会话管理功能+PDN网关控制(PDN GateWay Control plane,PGW-C))完全限定域名(Fully qualified domain name,FQDN)、双转向指示信息和RAT类型。
步骤12,UE2向AMF2发送上行NAS报文。
DualSteer设备上的UE 2向AMF2发送上行NAS报文,上行NAS报文包含dual steer PDU请求、PDU会话B的标识和PDU会话建立请求消息,PDU会话建立请求消息中也包含dual steer PDU请求指示,PDU会话标识等参数。
步骤13,AMF2从UDM获取会话相关信息。
如果AMF2上没有从UDM上获取的DualSteer设备(SUPI 1和/SUPI 2)的会话相关信息,则AMF2向UDM获取会话相关信息;UDM也可以向AMF2推送有更新的DualSteer设备的会话相关信息。AMF2根据SUPI 2和SUPI 1的共享dual steer签约信息,以及步骤12收到的dual steer PDU请求,从会话相关数据选择服务PDU会话A的SMF,进而使得AMF2可以为PUD会话B选择与PDU会话A相同的SMF。因为SUPI2与SUPI1之间的关联,才可以让AMF2获得SUPI1那边的PDU会话A的信息。
步骤14a-14b,AMF 2将PDU会话建立请求(PDU session establishment request)消息通过调用Nsmf_PDUSession_CreateSMContext服务发送到步骤13选择到的SMF。SMF向AMF 2回复Nsmf_PDUSession_CreateSMContext服务请求。
步骤15,SMF向PCF发起会话策略关联流程。
SMF向PCF发起会话策略关联流程,可以获取到该PDU会话(PDU会话B)对应的PCC规则,PCC规则中可以包括后续SMF分别导出的供UE和UPF使用的dual steer会话规则(如果步骤8b没有执行或者dual steer会话规则需要更新)。
步骤16-19,SMF根据dual steer PDU请求指示为PDU会话B选择到和PDU会话A相同的UPF。类似步骤8b-10b,PCF给SMF和UPF分别提供UE 2和UPF使用的对于PDU会话B的dual steer会话规则。
步骤20,SMF向UDM注册PDU会话B的会话相关信息,包括SUPI 2、PDU会话标识、服务该PDU会话的SMF信息(SMF IP地址、NF标识)、服务该PDU会话的PCF标识、DNN、SMF+PGW-C全限定域名(Fully Qualified Domain Name,FQDN)、dual steer指示、RAT类型,以及关联的dual steer PDU会话A的标识。
步骤21,SMF可以向UE1发送更新的dual steer会话规则。
实施例2
实施例2与实施例1场景和流程相同。不同点在于:DualSteer设备的签约信息中可以指定特定的PDU会话标识作为dual steer PDU会话。一般来说,一个终端可以建立多条PDU会话,每条PDU会话存在一个会话标识。
此外,当RAN A或者RAN B是4G接入网络时,通过该RAN建立的是PDN连接。
与实施例1之间存在区别的步骤包括:
步骤5,SMF从UDM获取到和dual steer相关的会话管理签约信息,包括:
a)是否允许建立dual steer PDU会话或PDN连接;和/或
b)特定的dual steer PDU会话标识,即指定的作为dual steer PDU会话的会话标识或PDN连接的标识。
如果只包含a)并且指示允许建立,则SMF进一步处理dual steer PDU会话建立请求。
如果只包含b),或者同时包含a)和b),则SMF检查来自UE的PDU session establishment request消息中的PDU会话ID是否与b)指定的会话标识一致,如果一致则进一步处理dual steer PDU会话建立请求。否则,在第6步向UE发送PDU会话拒绝消息,并携带原因值指示该PDU会话标识不是dual steer PDU会话的指定标识。
实施例3
实施例3与实施例1的场景和流程相同,不同点在于,UE使用的双转向会话规则通过PDU会话标识(记为PDU session ID)和终端标识(比如,SUPI)来指定使用哪条连接来发送相关流,举例如下:
规则a)表示对于目的地址为1.2.3.4的UDP报文,如果PDU会话A是有效状态,则使用PDU会话A发送,PDU会话A用PDU会话A的ID和SUPI1来表示;否则使用PDU会话B来发送。
此外,当RAN A或者RAN B是4G接入网络时,通过该RAN建立的是PDN连接,此时dual steer会话规则可采用的PDN connection ID+SUPI/IMSI的来指定使用PDN连接来发送相关流。
实施例4
图6是本申请实施例提供的另一种多接入会话控制的交互示意图。如图6所示,本实施例描述了dual steer设备已经建立的PDU会话A和PDU会话B执行dual steer。在DualSteer设备上的UE 1处于空闲态而UE 2处于连接态的情况下,因下行报文网络触发UE1恢复连接的流程,包括如下步骤:
步骤1,向AMF2发送Namf_Communication_N1N2MessageTransfer消息。
UPF收到发往UE1的下行数据通知SMF,下行数据和UE1 PDU会话A有关,SMF向AMF2发送Namf_Communication_N1N2MessageTransfer消息,包含SUPI 1、PDU会话A的标识。
步骤2,AMF 2向UE2发送通知消息。
AMF2向UE 2通知UE 1侧的下行报文和关联的dual steer PDU会话。
步骤3,UE1发起服务请求流程。
在DualSteer设备内部UE 2将步骤2收到的消息传给UE1侧,UE 1发起服务请求流程,从而避免了直接向UE1的空口发送寻呼消息的过程,节约了UE1发送寻呼消息所需要消耗的无线资源。
在一实施例中,图7是本申请实施例提供的一种会话控制装置的结构框图。本实施例应用于第一网元。如图7所示,本实施例中的会话控制装置包括:接收器710和获取模块720。
接收器710,配置为接收第一通信设备发送的至少携带双转向指示信息的上行信令消息。
获取模块720,配置为根据双转向指示信息选择支持双转向功能的第二网元,以使第二网元获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话。
在一实施例中,第一通信设备包括第一终端和第二终端;其中,第一终端配置第一签约标识符;第二终端配置第二签约标识符;应用于第一网元的会话控制装置,还包括:
获取模块720,还配置为从第三网元获取会话管理签约信息;其中,会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;
注册模块,配置为基于会话管理签约信息进行网络注册。
在一实施例中,应用于第一网元的会话控制装置,还包括:
接收器710,还配置为接收第三网元反馈的第二终端成功注册到网络的指示信息。
在一实施例中,上行信令消息包括:双转向会话标识和会话建立请求消息;其中,会话建立请求消息至少包括双转向指示信息。
在一实施例中,应用于第一网元的会话控制装置,还包括:
发送器,配置为向第二网元发送会话建立请求消息,以使第二网元从第三网元获取至少携带会话建立指示信息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话。
在一实施例中,根据双转向指示信息选择支持双转向功能的第二网元,包括下述之一:
根据本地配置信息和双转向指示信息选择支持双转向功能的第二网元;
向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第二网元。
在一实施例中,应用于第一网元的会话控制装置,还包括:
接收器710,还配置为接收第三网元推送的会话相关信息;
选择器,配置为根据第一签约标识符和第二签约标识符的共享签约信息,以及双转向指示信息,从会话相关信息中选择正在服务于已建立双转向会话的第二网元。
在一实施例中,会话管理签约信息还包括:用于执行双转向功能的特定会话标识。
在一实施例中,第一终端处于空闲态,且第二终端处于连接态;应用于第一网元的会话控制装置,还包括:
发送器,还配置为通过服务于第二终端的第一网元接收第二网元发送的通知消息,以使第一终端激活双转向用户面;其中,通知消息至少包括:第一签约标识符,以及第一终端对应的会话标识。
本实施例提供的会话控制装置设置为实现图2所示实施例的应用于第一网元的会话控制方法,本实施例提供的会话控制装置实现原理和技术效果类似,此处不再赘述。
在一实施例中,图8是本申请实施例提供的另一种会话控制装置的结构框图。本实施例应用于第二网元。如图8所示,本实施例中的会话控制装置包括:获取模块810。
获取模块810,配置为获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话;其中,第二网元为通过第一网元根据第一通信设备发送的双转向指示信息选择支持双转向功能的网元。
在一实施例中,第一通信设备包括第一终端和第二终端;其中,第一终端配置第一签约标识符;第二终端配置第二签约标识符;应用于第二网元的会话控制装置,还包括:
接收器,配置为接收第一网元发送的会话建立请求消息;
获取模块810,还配置为从第三网元获取至少携带会话建立指示信息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话;会话管理签约信息还包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息。
在一实施例中,应用于第二网元的会话控制装置,还包括:
建立模块,配置为基于会话建立请求消息建立第一终端对应的双转向会话;
发送器,配置为向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第五网元。
在一实施例中,应用于第二网元的会话控制装置,还包括:
发起模块,配置为向第五网元发起会话策略关联流程,并获取第一终端对应的双转向会话规则;其中,双转向会话规则用于指示第一终端所采用的用于传输数据流的双转向会话。
在一实施例中,应用于第二网元的会话控制装置,还包括:
发送器,还配置为向第四网元发送双转向指示信息、第一签约标识符和/或第二签约标识符、RAT类型,以通过第四网元选择支持双转向功能的第六网元。
在一实施例中,应用于第二网元的会话控制装置,还包括:
注册模块,配置为向第三网元注册第一终端所对应双转向会话的会话相关信息;其中,会话相关信息至少包括:双转向指示信息、RAT类型,以及与双转向会话标识。
在一实施例中,双转向会话规则通过至少下述参数之一指示第一终端所采用的双转向路径:连接标识和签约标识符;连接地址。
在一实施例中,会话管理签约信息还包括:用于执行双转向功能的特定会话标识。
在一实施例中,应用于第二网元的会话控制装置,还包括:
发送器,还配置为在会话建立请求消息中携带的双转向会话标识与特定会话标识不一致的情况下,向第一网元发送至少携带会话拒绝建立指示信息的会话建立响应消息;其中,会话拒绝建立指示信息用于指示双转向会话标识并非双转向会话的特定会话标识。
在一实施例中,第一终端处于空闲态,且第二终端处于连接态;应用于第二网元的会话控制装置,还包括:
发送器,还配置为向服务于第二终端的第一网元发送通知消息,以使第一终端激活双转向用户面;其中,通知消息至少包括:第一签约标识符,以及第一终端对应的会话标识。
本实施例提供的会话控制装置设置为实现图3所示实施例的应用于第二网元的会话控制方法,本实施例提供的会话控制装置实现原理和技术效果类似,此处不再赘述。
在一实施例中,图9是本申请实施例提供的又一种会话控制装置的结构框图。本实施例应用于第三网元。如图9所示,本实施例中的会话控制装置包括:发送器910。
发送器910,配置为向第一网元发送会话管理签约信息,以使第一网元基于会话管理签约信息进行网络注册;其中,会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;其中,第一签约标识符与第一通信设备中的第一终端对应;第二签约标识符与第一通信设备中的第二终端对应。
在一实施例中,应用于第三网元的会话控制装置,还包括:
发送器910,还配置为向第二网元发送至少携带会话建立指示信息的会话管理签约信息;其中,会话建立指示信息用于指示是否允许建立双转向会话。
在一实施例中,应用于第三网元的会话控制装置,还包括:
接收器,配置为接收第二网元注册的第一终端所对应双转向会话的会话相关信息;其中,会话相关信息至少包括:双转向指示信息和RAT类型。
在一实施例中,应用于第三网元的会话控制装置,还包括:
推送模块,配置为向第一网元推送会话相关信息,以使第一网元根据第一签约标识符和第二签约标识符的共享签约信息,以及双转向指示信息,从会话相关信息中选择正在服务于已建立双转向会话的第二网元。
在一实施例中,应用于第三网元的会话控制装置,还包括:
接收器,配置为接收第二网元注册的第二终端所对应双转向会话的会话相关信息;其中,会话相关信息至少包括:双转向指示信息、RAT类型和关联的双转向会话标识。
本实施例提供的会话控制装置设置为实现图4所示实施例的应用于第三网元的会话控制方法,本实施例提供的会话控制装置实现原理和技术效果类似,此处不再赘述。
在一实施例中,图10是本申请实施例提供的一种通信设备的结构示意图。如图10所示,本申请提供的设备,包括:处理器1010、存储器1020和通信模块1030。该设备中处理器1010的数量可以是一个或者多个,图10中以一个处理器1010为例。该设备中存储器1020的数量可以是一个或者多个,图10中以一个存储器1020为例。该设备的处理器1010、存储器1020和通信模块1030可以通过总线或者其他方式连接,图10中以通过总线连接为例。在该实施例中,该设备为可以为第一网元、第二网元或第三网元。
存储器1020作为一种计算机可读存储介质,可设置为存储软件程序、计算机可执行程序以及模块,如本申请任意实施例的设备对应的程序指令/模块(例如,应用于第一网元的会话控制装置中的接收器710和获取模块720)。存储器1020可包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据设备的使用所创建的数据等。此外,存储器1020可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中,存储器1020可进一步包括相对于处理器1010远程设置的存储器,这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
在通信设备为第一网元的情况下,上述提供的设备可设置为执行上述任意实施例提供的应用于第一网元的会话控制方法,具备相应的功能和效果。
在通信设备为第二网元的情况下,上述提供的设备可设置为执行上述任意实施例提供的应用于第二网元的会话控制方法,具备相应的功能和效果。
在通信设备为第三网元的情况下,上述提供的设备可设置为执行上述任意实施例提供的应用于第三网元的会话控制方法,具备相应的功能和效果。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行一种应用于第一网元的会话控制方法,该方法包括:接收第一通信设备发送的至少携带双转向指示信息的上行信令消息;根据双转向指示信息选择支持双转向功能的第二网元,以使第二网元获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行一种应用于第二网元的会话控制方法,该方法包括:获取第一通信设备对应的双转向会话规则;其中,双转向会话规则用于指示第一通信设备所采用的用于传输数据流的双转向会话;其中,第二网元为通过第一网元根据第一通信设备发送的双转向指示信息选择支持双转向功能的网元。
本申请实施例还提供一种包含计算机可执行指令的存储介质,计算机可执行指令在由计算机处理器执行时用于执行一种应用于第三网元的会话控制方法,该方法包括:向第一网元发送会话管理签约信息,以使第一网元基于会话管理签约信息进行网络注册;其中,会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;其中,第一签约标识符与第一通信设备中的第一终端对应;第二签约标识符与第一通 信设备中的第二终端对应。
本领域内的技术人员应明白,术语用户设备涵盖任何适合类型的无线用户设备,例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说,本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如,一些方面可以被实现在硬件中,而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中,尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现,例如在处理器实体中,或者通过硬件,或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture,ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤,或者可以表示相互连接的逻辑电路、模块和功能,或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现,例如但不限于只读存储器(Read-Only Memory,ROM)、随机访问存储器(Random Access Memory,RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc,DVD)或光盘(Compact Disk,CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型,例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、可编程逻辑器件(Field-Programmable Gate Array,FPGA)以及基于多核处理器架构的处理器。
本申请实施例还提供了一种计算机程序产品,包括计算机程序,该计算机程序在被处理器执行时可以实现如本申请任一实施例所提供的会话控制方法。
计算机程序产品在实现的过程中,可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码,程序设计语言包括面向对象的程序设计语言,诸如Java、Smalltalk、C++,还包括常规的过程式程序设计语言,诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中,远程计算机可以通过任意种类的网络——包括局域网(Local Area Network,LAN)或广域网(Wide Area Network,WAN)—连接到 用户计算机,或者,可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
以上仅为本申请的可选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (26)

  1. 一种会话控制方法,应用于第一网元,包括:
    接收第一通信设备发送的至少携带双转向指示信息的上行信令消息;
    根据所述双转向指示信息选择支持双转向功能的第二网元,以使所述第二网元获取所述第一通信设备对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一通信设备所采用的用于传输数据流的双转向会话。
  2. 根据权利要求1所述的方法,其中,所述第一通信设备包括第一终端和第二终端;其中,所述第一终端配置第一签约标识符;所述第二终端配置第二签约标识符;所述方法,还包括:
    从第三网元获取会话管理签约信息;其中,所述会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;
    基于所述会话管理签约信息进行网络注册。
  3. 根据权利要求2所述的方法,还包括:
    接收所述第三网元反馈的所述第二终端成功注册到网络的指示信息。
  4. 根据权利要求1所述的方法,其中,所述上行信令消息包括:双转向会话标识和会话建立请求消息;其中,所述会话建立请求消息至少包括所述双转向指示信息。
  5. 根据权利要求4所述的方法,还包括:
    向所述第二网元发送所述会话建立请求消息,以使所述第二网元从第三网元获取至少携带会话建立指示信息的会话管理签约信息;其中,所述会话建立指示信息用于指示是否允许建立双转向会话。
  6. 根据权利要求2或3所述的方法,其中,所述根据所述双转向指示信息选择支持双转向功能的第二网元,包括下述之一:
    根据本地配置信息和所述双转向指示信息选择支持双转向功能的第二网元;
    向第四网元发送所述双转向指示信息、所述第一签约标识符和/或所述第二签约标识符、无线接入技术RAT类型,以通过所述第四网元选择支持双转向功能的第二网元。
  7. 根据权利要求2或3所述的方法,还包括:
    接收所述第三网元推送的会话相关信息;
    根据所述第一签约标识符和所述第二签约标识符的共享签约信息,以及所述双转向指示信息,从所述会话相关信息中选择正在服务于已建立双转向会话 的第二网元。
  8. 根据权利要求2所述的方法,其中,所述会话管理签约信息还包括:用于执行双转向功能的特定会话标识。
  9. 根据权利要求2所述的方法,其中,所述第一终端处于空闲态,且所述第二终端处于连接态;所述方法,还包括:
    通过服务于所述第二终端的第一网元接收所述第二网元发送的通知消息,以使所述第一终端激活双转向用户面;其中,所述通知消息至少包括:第一签约标识符,以及所述第一终端对应的会话标识。
  10. 一种会话控制方法,应用于第二网元,包括:
    获取第一通信设备对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一通信设备所采用的用于传输数据流的双转向会话;其中,所述第二网元为通过第一网元根据所述第一通信设备发送的双转向指示信息选择支持双转向功能的网元。
  11. 根据权利要求10所述的方法,其中,所述第一通信设备包括第一终端和第二终端;其中,所述第一终端配置第一签约标识符;所述第二终端配置第二签约标识符;所述方法,还包括:
    接收所述第一网元发送的会话建立请求消息;
    从第三网元获取至少携带会话建立指示信息的会话管理签约信息;其中,所述会话建立指示信息用于指示是否允许建立双转向会话;所述会话管理签约信息包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息。
  12. 根据权利要求11所述的方法,还包括:
    基于所述会话建立请求消息建立所述第一终端对应的双转向会话;
    向第四网元发送所述双转向指示信息、所述第一签约标识符和/或所述第二签约标识符、无线接入技术RAT类型,以通过所述第四网元选择支持双转向功能的第五网元。
  13. 根据权利要求12所述的方法,还包括:
    向所述第五网元发起会话策略关联流程,并获取所述第一终端对应的双转向会话规则;其中,所述双转向会话规则用于指示所述第一终端所采用的用于传输数据流的双转向会话。
  14. 根据权利要求12所述的方法,还包括:
    向所述第四网元发送所述双转向指示信息、所述第一签约标识符和/或所述 第二签约标识符、所述RAT类型,以通过所述第四网元选择支持双转向功能的第六网元。
  15. 根据权利要求12所述的方法,还包括:
    向所述第三网元注册所述第一终端所对应双转向会话的会话相关信息;其中,所述会话相关信息至少包括:双转向指示信息、所述RAT类型,以及与双转向会话标识。
  16. 根据权利要求10-15任一项所述的方法,其中,所述双转向会话规则通过至少下述参数之一指示所述第一终端所采用的双转向路径:连接标识和签约标识符;连接地址。
  17. 根据权利要求11所述的方法,其中,所述会话管理签约信息还包括:用于执行双转向功能的特定会话标识。
  18. 根据权利要求17所述的方法,还包括:
    在所述会话建立请求消息中携带的双转向会话标识与所述特定会话标识不一致的情况下,向所述第一网元发送至少携带会话拒绝建立指示信息的会话建立响应消息;其中,所述会话拒绝建立指示信息用于指示所述双转向会话标识并非双转向会话的特定会话标识。
  19. 根据权利要求11所述的方法,其中,所述第一终端处于空闲态,且所述第二终端处于连接态;所述方法,还包括:
    向服务于所述第二终端的第一网元发送通知消息,以使所述第一终端激活双转向用户面;其中,所述通知消息至少包括:第一签约标识符,以及所述第一终端对应的会话标识。
  20. 一种会话控制方法,应用于第三网元,包括:
    向第一网元发送会话管理签约信息,以使所述第一网元基于所述会话管理签约信息进行网络注册;其中,所述会话管理签约信息至少包括:第一签约标识符;第二签约标识符;第一签约标识符和第二签约标识符的共享签约信息;其中,所述第一签约标识符与第一通信设备中的第一终端对应;所述第二签约标识符与第一通信设备中的第二终端对应。
  21. 根据权利要求20所述的方法,还包括:
    向第二网元发送至少携带会话建立指示信息的会话管理签约信息;其中,所述会话建立指示信息用于指示是否允许建立双转向会话。
  22. 根据权利要求21所述的方法,还包括:
    接收所述第二网元注册的第一终端所对应双转向会话的会话相关信息;其 中,所述会话相关信息至少包括:双转向指示信息和无线接入技术RAT类型。
  23. 根据权利要求22所述的方法,还包括:
    向所述第一网元推送会话相关信息,以使所述第一网元根据所述第一签约标识符和所述第二签约标识符的共享签约信息,以及所述双转向指示信息,从所述会话相关信息中选择正在服务于已建立双转向会话的第二网元。
  24. 根据权利要求22所述的方法,还包括:
    接收所述第二网元注册的第二终端所对应双转向会话的会话相关信息;其中,所述会话相关信息至少包括:双转向指示信息、RAT类型和关联的双转向会话标识。
  25. 一种通信设备,包括:存储器,以及一个或多个处理器;
    所述存储器,配置为存储一个或多个程序;
    当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如上述权利要求1-9、10-19或20-24任一项所述的方法。
  26. 一种存储介质,存储有计算机程序,所述计算机程序被处理器执行时实现如上述权利要求1-9、10-19或20-24中任一项所述的方法。
PCT/CN2024/123295 2024-02-05 2024-10-08 会话控制方法、设备及存储介质 Pending WO2025167151A1 (zh)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117939455A (zh) * 2024-02-05 2024-04-26 中兴通讯股份有限公司 会话控制方法、设备及存储介质
CN120692687A (zh) * 2024-03-22 2025-09-23 中国电信股份有限公司技术创新中心 Upf网元选择方法、smf网元、通信系统和存储介质
WO2025212017A1 (en) * 2024-04-05 2025-10-09 Telefonaktiebolaget Lm Ericsson (Publ) Session management nodes, access and mobility nodes, ue, policy control node and methods in a wireless communications network
CN121336494A (zh) * 2024-05-13 2026-01-13 北京小米移动软件有限公司 通信方法、网元、通信系统及存储介质
CN121359509A (zh) * 2024-05-14 2026-01-16 北京小米移动软件有限公司 通信方法、第一网络设备、第一设备、通信系统和存储介质
CN120980507A (zh) * 2024-05-17 2025-11-18 华为技术有限公司 一种通信方法及装置
CN119325156A (zh) * 2024-09-29 2025-01-17 中国移动通信有限公司研究院 信息处理方法、装置、设备、存储介质及计算机程序产品
CN119383758B (zh) * 2024-12-20 2025-03-28 中国电信股份有限公司 会话管理方法及通信系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220150683A1 (en) * 2019-07-23 2022-05-12 Huawei Technologies Co., Ltd. Method, Apparatus, and System for Selecting Session Management Network Element
CN114866423A (zh) * 2022-05-05 2022-08-05 中国电信股份有限公司 专网业务策略控制方法、装置、设备及介质
CN116546616A (zh) * 2023-05-17 2023-08-04 中国电信股份有限公司广东研究院 网络切片注册方法、装置、通信设备和存储介质、产品
CN117939455A (zh) * 2024-02-05 2024-04-26 中兴通讯股份有限公司 会话控制方法、设备及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220150683A1 (en) * 2019-07-23 2022-05-12 Huawei Technologies Co., Ltd. Method, Apparatus, and System for Selecting Session Management Network Element
CN114866423A (zh) * 2022-05-05 2022-08-05 中国电信股份有限公司 专网业务策略控制方法、装置、设备及介质
CN116546616A (zh) * 2023-05-17 2023-08-04 中国电信股份有限公司广东研究院 网络切片注册方法、装置、通信设备和存储介质、产品
CN117939455A (zh) * 2024-02-05 2024-04-26 中兴通讯股份有限公司 会话控制方法、设备及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group TSG SA; Study on Upper layer traffic steer, switch and split over dual 3GPP access (Release 19)", 3GPP STANDARD; TECHNICAL REPORT; 3GPP TR 22.841, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), no. V19.0.0, 22 December 2023 (2023-12-22), FR, pages 1 - 55, XP052553081 *

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