WO2022236598A1 - 信息处理方法及装置、通信设备及存储介质 - Google Patents

信息处理方法及装置、通信设备及存储介质 Download PDF

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Publication number
WO2022236598A1
WO2022236598A1 PCT/CN2021/092836 CN2021092836W WO2022236598A1 WO 2022236598 A1 WO2022236598 A1 WO 2022236598A1 CN 2021092836 W CN2021092836 W CN 2021092836W WO 2022236598 A1 WO2022236598 A1 WO 2022236598A1
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Prior art keywords
upf
capability information
smf
information
association
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PCT/CN2021/092836
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English (en)
French (fr)
Inventor
洪伟
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180001490.5A priority Critical patent/CN113454929A/zh
Priority to PCT/CN2021/092836 priority patent/WO2022236598A1/zh
Publication of WO2022236598A1 publication Critical patent/WO2022236598A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present disclosure relates to the technical field of wireless communication but is not limited to the technical field of wireless communication, and in particular relates to an information processing method and device, a communication device, and a storage medium.
  • the protocol data unit (Protocol data unit, PDU) session is established by selecting the user plane function (User Plane Function, UPF) by the session management function (Session Management Function, SMF), and communicating with the user equipment (User Equipment, UE), base station A transmission link is established between devices.
  • UPF User Plane Function
  • SMF Session Management Function
  • some UPFs support satellite communication, and some UPFs do not support satellite communication, and multiple UPFs can be deployed in the wireless communication network. Selecting the appropriate UPF communication is the key to ensure the quality of PDU session communication step.
  • Embodiments of the present disclosure provide an information processing method and device, a communication device, and a storage medium.
  • the first aspect of the embodiments of the present disclosure provides an information processing method, which is executed by a session management function SMF, and the method may include:
  • the second aspect of the embodiments of the present disclosure provides an information processing method, which is executed by the UPF, and the method includes:
  • a third aspect of an embodiment of the present disclosure provides an information processing apparatus, the apparatus including: an acquisition module configured to acquire UPF capability information of a user plane function, wherein the UPF capability information at least indicates that the UPF supports satellite connection.
  • a fourth aspect of an embodiment of the present disclosure provides an information processing device, the device including: a sending module configured to send UPF capability information to an SMF, where the UPF capability information at least indicates the satellite connection capability of the UPF.
  • the fifth aspect of the embodiments of the present disclosure provides a communication device, including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs the executable
  • the program executes the information processing method provided in the aforementioned first or second aspect.
  • the sixth aspect of the embodiments of the present disclosure provides a computer storage medium, the computer storage medium stores an executable program; after the executable program is executed by a processor, it can realize the information provided by the aforementioned first aspect or the second aspect Approach.
  • the SMF will obtain the UPF capability information indicating whether the UPF supports satellite connection, so that in the case of establishing a PDU session, an appropriate UPF can be selected according to the UPF capability information, thereby ensuring the communication quality of the PDU session.
  • Fig. 1A is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Fig. 1B is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Fig. 2A is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 2B is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 2C is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 2D is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 2E is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 2F is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 3A is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 3B is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 3C is a schematic flowchart of an information processing method according to an exemplary embodiment
  • Fig. 3D is a schematic flow diagram of establishing a PDU session according to an exemplary embodiment
  • Fig. 4 is a schematic structural diagram of an information processing device according to an exemplary embodiment
  • Fig. 5 is a schematic structural diagram of an information processing device according to an exemplary embodiment
  • Fig. 6 is a schematic structural diagram of a communication device according to an exemplary embodiment.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • FIG. 1A shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several UEs 11 and several access devices 12 .
  • UE11 may be a device that provides voice and/or data connectivity to a user.
  • UE11 can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and UE11 can be an Internet of Things UE, such as a sensor device, a mobile phone (or called a "cellular" phone) and a device with an Internet of Things
  • RAN Radio Access Network
  • UE11 can be an Internet of Things UE, such as a sensor device, a mobile phone (or called a "cellular" phone) and a device with an Internet of Things
  • the UE's computer for example, may be a fixed, portable, pocket, hand-held, built-in or vehicle-mounted device.
  • UE11 may also be a device of an unmanned aerial vehicle.
  • UE11 may also be a vehicle-mounted device, for example, it may be a trip computer with a wireless communication function, or a wireless communication device connected externally to the trip computer.
  • the UE11 may also be a roadside device, for example, it may be a street lamp, a signal lamp, or other roadside devices with a wireless communication function.
  • the access device 12 may be a network side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as a Long Term Evolution (LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network).
  • the MTC system the MTC system.
  • the access device 12 may be an evolved access device (eNB) adopted in a 4G system.
  • the access device 12 may also be an access device (gNB) adopting a centralized and distributed architecture in the 5G system.
  • eNB evolved access device
  • gNB access device
  • the access device 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, radio link layer control protocol (Radio Link Control, RLC) layer, media access control (Media Access Control, MAC) layer protocol stack;
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • a physical (Physical, PHY) layer protocol stack is set in the unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the access device 12 .
  • a wireless connection may be established between the access device 12 and the UE 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a technical standard of a next-generation mobile communication network based on 5G.
  • an E2E (End to End, end-to-end) connection can also be established between UE11.
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle to everything (V2X) communication Wait for the scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in the wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity, MME).
  • MME Mobility Management Entity
  • the network management device can also be other core network devices, such as Serving GateWay (SGW), Public Data Network Gateway (Public Data Network GateWay, PGW), policy and charging rule functional unit (Policy and Charging Rules Function, PCRF) or Home Subscriber Server (Home Subscriber Server, HSS), etc.
  • SGW Serving GateWay
  • PGW Public Data Network Gateway
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • the UE accesses the network through the access network (Access Network, AN) or radio access network (Radio Access Network, RAN), and a satellite link may be required between AN/RAN and UPF to form a satellite backhaul link.
  • access network Access Network, AN
  • radio access network Radio Access Network, RAN
  • an embodiment of the present disclosure provides an information processing method, which is executed by a session management function SMF, and the method may include:
  • S110 Acquire UPF capability information of a user plane function, where the UPF capability information at least indicates that the UPF supports satellite connection.
  • the UPF capability information is at least used by the SMF to determine whether the corresponding UPF supports satellite connection. If it supports satellite connection, the UPF has satellite communication capability. If it does not support satellite connection, the UPF does not have satellite communication capability. If the UPF supports satellite communication, a communication link can be established between the UPF and the satellite, so that the connection between the base station and the UPF can be relayed through the satellite, thereby ensuring a larger coverage area, longer distance communication and less occluded non-ground communication. If the two parties of the corresponding PDU session do not need to go through a long distance, or the delay tolerance is low, it may not be suitable for relaying communication through satellite, and there may be no restriction on whether the UPF supports satellite communication.
  • the SMF will obtain the UPF capability information, so as to know whether the corresponding UPF supports satellite communication, so that when establishing a PDU session, a UPF that is more suitable for the current PDU session can be selected to participate in the connection between the base stations. In this way, the PDU session establishment in the satellite communication scenario is realized.
  • an information processing method provided by an embodiment of the present disclosure may include:
  • S111 Receive UPF capability information from the UPF.
  • the UPF itself will send the UPF capability information to the SMF.
  • the SMF does not need to preset the UPF capability information, and when the UPF has the ability to update or there is a UPF update, the SMF can receive the UPF capability information from the corresponding UPF, so as to ensure Accuracy of UPF capability information obtained by SMF.
  • S111 may include at least one of the following:
  • UPF capability information is received from the UPF, and the UPF update includes: UPF addition, UPF replacement, UPF deletion and/or UPF upgrade;
  • UPF capability update When it is detected that there is a UPF capability update, for example, some UPFs have never supported satellite connections through updating methods such as capacity deployment, and switch to supporting satellite connections. The function and other update methods are switched to not support satellite connection. At this time, SMF obtains UPF capability information from the corresponding UPF, which is convenient for subsequent PDU sessions based on accurate UPF capability information;
  • the UPF capability information is requested from the UPF based on triggering of a preset event; the preset event includes but is not limited to: the satellite communication request carried in the PDU session request and/or the determination that the satellite passes through the coverage area of the ground network connected to the SMF.
  • the SMF pre-configures the UPF capability information, and when the SMF needs the UPF capability information, it only needs to directly read the pre-configured UPF capability information.
  • the pre-configuration here can be written into the configuration information of the SMF or into the communication protocol, so that the SMF can determine the UPF capability information by reading the configuration information or the communication protocol.
  • an embodiment of the present disclosure also provides an information processing method, as shown in FIG. 2C , including:
  • An embodiment of the present disclosure provides an information processing method, as shown in FIG. 2D, which may include:
  • S101 Send request information to UPF
  • S111 Receive, from the UPF, UPF capability information returned based on the request information.
  • the SMF before obtaining the UPF capability information, the SMF sends request information to the UPF, where the request information is used to request the UPF capability information.
  • the UPF capability information received by the SMF is returned based on the request information sent by the SMF.
  • the SMF can trigger the UPF to return the UPF capability information to the SMF by sending the request information. In this way, the SMF can request the UPF capability information from the UPF when necessary. There is no need to send request information to trigger the UPF to return UPF capability information to the SMF, thereby reducing unnecessary information transmission between the UPF and the SMF.
  • the sending request information to the UPF includes:
  • the UPF capability information is carried in the N4 association establishment response of the N4 association establishment request.
  • initiiating N4 association in response to the SMF is equivalent to: when the SMF initiates the N4 association or when the SMF initiates the N4 association, send the N4 association establishment request carrying the aforementioned requested UPF capability information to the UPF, so that the SMF During the establishment of the N4 association with the UPF, the SMF knows the UPF capability information of the UPF, and the information used during the establishment of the N4 association does not need to introduce special message signaling, which is easy to implement.
  • the N4 association establishment response is sent by the UPF based on the N4 association establishment request, and the N4 association establishment request and the N4 association establishment response are also used to establish the N4 association between the UPF and the SMF.
  • the UPF may proactively push the UPF capability information to the connected SMF, so that the SMF will receive the message carrying the UPF capability information proactively pushed by the UPF.
  • the UPF when the UPF determines that its own UPF capability information is updated or reaches the update period, it can actively push a message carrying the UPF capability information to the SMF, so that the SMF knows whether the UPF supports the satellite connection capability.
  • the receiving the UPF capability information from the UPF includes: receiving a message carrying the UPF capability information actively pushed by the UPF.
  • the receiving the message carrying the UPF capability information actively pushed by the UPF includes: receiving the N4 association message carrying the UPF capability information in response to the UPF starting N4 association.
  • the initiation of N4 association can be performed by SMF or UPF. If the SMF starts the N4 association, the SMF sends the N4 association request message, so that the UPF carries the UPF capability information in the N4 association response message. If the UPF starts the N4 association, the UPF sends the N4 association message to the SMF.
  • the N4 association message may be an N4 association request message but not limited to the N4 association request message.
  • the N4 association request message carries UPF capability information.
  • the UPF capability information can be exchanged between the SMF and the UPF through the N4 association message in the N4 association process.
  • the method also includes:
  • the SMF can select an appropriate UPF to establish a PDU session between the base station and the UPF according to the UPF capability information.
  • the SMF may select an appropriate UPF to establish a PDU session between the base station and the UPF according to the UPF capability information, including:
  • the satellite backhaul link requires the participation of satellites, so the UPF needs to have satellite connection capabilities, so that it can establish a satellite backhaul link with the satellite connection.
  • the SMF can select an appropriate UPF to establish a PDU session between the base station and the UPF according to the UPF capability information, including:
  • Non-satellite backhaul links are: backhaul links that do not require the participation of satellites.
  • a typical non-satellite backhaul link may include: a backhaul link formed by ground equipment, for example, a backhaul link formed by a cellular mobile communication network such as 3G or 4G.
  • an embodiment of the present disclosure provides an information processing method, which is executed by a UPF, and the method includes:
  • S210 Send UPF capability information to the SMF, wherein the UPF capability information at least indicates that the UPF supports satellite connection.
  • the UPF may send the UPF capability information to the SMF.
  • the UPF capability information indicates whether the UPF has satellite connection capability (UPF supports satellite connection), and the UPF can connect with the satellite to establish a satellite backhaul link. If the UPF does not have the satellite connection capability (UPF supports satellite connection), the UPF cannot connect to the satellite and cannot participate in the satellite backhaul link.
  • the sending the UPF capability information to the SMF includes:
  • the UPF supports the satellite connection, and then sends the UPF capability information indicating that it supports the satellite connection to the SMF. If the UPF does not support the satellite connection, it is unnecessary to report the UPF capability information indicating whether the UPF supports the satellite connection. If the SMF does not receive the UPF capability information indicating that the UPF supports satellite connections, the SMF will assume that the UPF does not support satellite connections.
  • an information processing method provided by an embodiment of the present disclosure may include:
  • S211 Send UPF capability information to the SMF based on the request information sent by the SMF.
  • an information processing method provided by an embodiment of the present disclosure may include:
  • S212 Actively send the UPF capability information to the SMF.
  • the SMF sends the request information
  • the UPF sends the UPF capability information to the SMF based on the request information, so that the SMF receives the UPF capability information.
  • the UPF actively pushes the UPF capability information to the SMF, so that the SMF receives the UPF capability information without sending a request message.
  • the request information includes: the N4 association establishment request sent when the SMF initiates the establishment of the N4 association;
  • the UPF capability information is carried in the association establishment response of the N4 association establishment request.
  • the association request message and/or the association establishment response carry the UPF capability information, so that the UPF capability information is exchanged between the SMF and the UPF.
  • the actively sending the UPF capability information to the SMF includes: sending an N4 association message carrying the UPF capability information to the SMF in response to the UPF starting N4 association.
  • the UPF can actively send the UPF capability information to the SMF through the N4 association message, instead of sending the UPF capability information through dedicated signaling.
  • an embodiment of the present disclosure provides an information processing device, which is executed by a session management function SMF, and the device includes:
  • the obtaining module 410 is configured to obtain UPF capability information of a user plane function, wherein the UPF capability information at least indicates that the UPF supports satellite connection.
  • the obtaining module 410 may be a program module; after the program module is executed by the processor, the UPF capability information can be obtained.
  • the acquisition module 410 can be a combination of hardware and software; the combination of hardware and software includes various programmable arrays; the programmable arrays include but are not limited to: field programmable arrays or complex programmable array.
  • the acquiring module 410 may be a pure hardware module; the pure hardware module includes but is not limited to an application specific integrated circuit.
  • the acquiring module 410 is configured to receive the UPF capability information from the UPF; or, acquire the pre-configured UPF capability information.
  • the device also includes:
  • a sending module configured to send request information to the UPF
  • the acquiring module 410 is configured to receive the UPF capability information returned based on the request information from the UPF.
  • the sending module is configured to send an N4 association establishment request to the UPF in response to the SMF starting an N4 association;
  • the UPF capability information is carried in the N4 association establishment response of the N4 association establishment request.
  • the acquiring module 410 is configured to receive the message carrying the UPF capability information actively pushed by the UPF.
  • the acquiring module 410 is configured to receive an N4 association message carrying the UPF capability information in response to the UPF starting the N4 association.
  • the device also includes:
  • the establishment module is configured to respond to the need to deploy a satellite backhaul link between the base station and the UPF, and according to the UPF capability information, select a UPF that supports satellite connections to establish a PDU session; or, in response to deploying a non-satellite link between the base station and the UPF For the backhaul link, according to the UPF capability information, select a UPF that supports satellite connection or does not support satellite connection to establish a PDU session.
  • an embodiment of the present disclosure provides an information processing device, and the device includes:
  • the sending module 510 is configured to send the UPF capability information to the SMF, wherein the UPF capability information at least indicates the satellite connection capability of the UPF.
  • the sending module 510 may be a program module; after the program module is executed by the processor, it can send SMF with UPF capability information.
  • the sending module 510 can be a combination of hardware and software; the combination of hardware and software includes various programmable arrays; the programmable arrays include but are not limited to: field programmable arrays or complex programmable array.
  • the sending module 510 may be a pure hardware module; the pure hardware module includes but is not limited to an application specific integrated circuit.
  • the sending module 510 is configured to send the UPF capability information to the SMF in response to the UPF supporting satellite connection.
  • the sending module 510 is configured to send the UPF capability information to the SMF based on the request information sent by the SMF; or actively send the UPF capability information to the SMF .
  • the request information includes: the N4 association establishment request sent when the SMF initiates the establishment of the N4 association;
  • the UPF capability information is carried in the association establishment response of the N4 association establishment request.
  • the sending module 510 is configured to send an N4 association message carrying the UPF capability information to the SMF in response to the UPF starting the N4 association.
  • Telecom network 5G network or 4G network Telecom network 5G network or 4G network.
  • the UE sends a PDU session establishment request to the AMF, and the session establishment request passes through the access network (Access Network, AN) or the radio access network (Radio Access Network, RAN). As shown in Figure 3E, RAN or AN can be abbreviated as (R)AN. 2)
  • the AMF determines whether the PDU session establishment request is a request for a new PDU session.
  • AMF triggers SMF to start Nsmf_PDUSession_CreateSMContext; if it is not a new PDU session request, AMF triggers SMF to start Nsmf_PDUSession_UpdateSMContext.
  • a second level of authentication or authorization can be enforced between the UE and the network.
  • a second level of authentication or authorization can be enforced between the UE and the network.
  • PCC Policy and Charging
  • the SMF may execute an SM policy association establishment procedure to establish an SM policy association with the PCF.
  • the SMF selects one or more UPFs as needed according to the UPF selection mechanism.
  • the SMF initiates the N4 session establishment/modification procedure with the selected UPF.
  • the AMF sends the N2SM information received from the SMF within the N2PDU Session Request to the (R)AN with the NAS message and the PDU Session Setup Accept for the UE.
  • the AN or RAN may issue specific signaling exchanges with the UE related to the information received from the SMF. AN or RAN forwards the NAS message to UE.
  • the SMF will select or re-select an appropriate UPF by considering the UPF deployment scheme (as shown in step X).
  • UPF selection concerns may include:
  • Steps to select UPF for a specific PDU session Steps to select UPF for a specific PDU session.
  • SMF makes UPF selection by referring to the following information:
  • the N4 association between the SMF and UPF can be established and the rest of the process performed, resulting in a successful PDU session establishment. Based on this procedure, the UE can start the application.
  • 5G networks should support satellite backhaul links, as shown in Figure 1B.
  • An embodiment of the present disclosure provides an information processing method, which may include: providing UPF with UPF capability information to indicate whether the UPF supports satellite connection.
  • the SMF knows this capability information (that is, the aforementioned UPF capability information), so as to select the correct UPF when using the satellite backhaul link.
  • the attribute of UPF is introduced to indicate whether the UPF has the capability of supporting satellite connection, and then, the correct UPF can be selected or reselected during the establishment of the PDU session.
  • N4 node level procedures Prior to PDU session establishment, use N4 node level procedures (N4 association) to exchange functions between UPF and SMF, including satellite functions.
  • N4 association is initiated by SMF, as shown in Figure 2E:
  • the UPF If the UPF supports the satellite connection function, the UPF returns an N4 association establishment response to the SMF containing this information. Based on the N4 association, the SMF can learn which UPFs have satellite connection capabilities.
  • N4 association is initiated by UPF, as shown in Figure 2F:
  • the UPF can start the N4 association to request the establishment of the N4 association with the SMF. If the UPF supports the satellite connection function, the UPF carries the UPF capability information indicating that the UPF supports the satellite connection in the N4 association establishment request.
  • the SMF stores the UPF capability information, and sends an N4 association establishment response to the UPF.
  • step 7 For UPF selection based on satellite connectivity capabilities, except for step 7, other steps are the same as the corresponding steps in Figure 3E. If the SMF knows that the satellite backhaul link is used for the N3 connection between the RAN and the UPF, or the SMF receives this information from the AMF, the SMF should perform UPF selection based on the UPF.
  • Whether the UPF supports the satellite connection capability may be defined in the SMF or other network functions (Network Function, NF).
  • the NF may include the AMF.
  • UPF capability information indicating whether the UPF has satellite connection is pre-configured on the AMF. If an N4 session needs to be established, the SMF can select a UPF according to the pre-configured UPF capability information.
  • the SMF acquires and stores UPF capability information about the UPF Satellite Link function.
  • the UPF capability information indicates that the UPF has the capability of using the satellite backhaul link to connect to the gNB.
  • the SMF obtains the UPF capability information from the UPF that supports this function, or the UPF capability information can be pre-configured in the SMF.
  • the SMF selects the correct UPF for the PDU session based on the UPF satellite connection capability. If the UPF supports satellite connection, the UPF can provide this capability information to the SMF. This regulation can be proactive Based on UPF or according to the requirements of SMF.
  • An embodiment of the present disclosure provides a communication device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the terminal control method and/or the information processing method provided by any of the foregoing technical solutions.
  • the processor may include various types of storage media, which are non-transitory computer storage media, and can continue to memorize and store information thereon after the communication device is powered off.
  • the communication device includes: SMF or UPF.
  • the processor can be connected to the memory through a bus, etc., for reading executable programs stored on the memory, for example, at least one of the information processing methods shown in Figures 2A to 2F, and Figures 3A to 3D.
  • an embodiment of the present disclosure shows a structure of a communication device.
  • the communication device 900 may be provided as any core network device, for example, at least the aforementioned SMF and/or UPF.
  • the communication device 900 includes a processing component 922 , which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions executable by the processing component 922 , such as application programs.
  • the application program stored in memory 932 may include one or more modules each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the access device, for example, as shown in FIGS. 2 , 3 to 5 , 6A to 6D , and 7A to 6D 7B, and/or the method shown in FIG. 8A to FIG. 8C.
  • the communication device 900 may also include a power supply component 926 configured to perform power management of the communication device 900, a wired or wireless network interface 950 configured to connect the communication device 900 to a network, and an input output (I/O) interface 958 .
  • the communication device 900 can operate based on an operating system stored in the memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • the embodiment of the present disclosure also provides a computer storage medium, the computer storage medium stores an executable program; after the executable program is executed by the processor, it can implement the information processing method provided by any of the aforementioned technical solutions, as shown in Figure 2A At least one of the information processing methods shown in FIG. 2F, FIG. 3A to FIG. 3D.
  • the computer storage medium may be a non-transitory storage medium.
  • the non-transitory storage medium may include: an optical disc, a hard disk, a magnetic tape, a U disk, or a flash memory.

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Abstract

一种信息处理方法及装置、通信设备及存储介质。由SMF执行的信息处理方法可包括：获取用户面功能UPF能力信息，其中，UPF能力信息，至少指示UPF支持卫星连接。

Description

信息处理方法及装置、通信设备及存储介质 技术领域
本公开涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及一种信息处理方法及装置、通信设备及存储介质。
背景技术
协议数据单元(Protocol data unit，PDU)会话的建立，是由会话管理功能(Session Management Function，SMF)选择用户面功能(User Plane Function，UPF)，并和用户设备(User Equipment,UE)、基站设备之间建立传输的链路。
随着无线通信技术的发展，有的UPF支持卫星通信，有的UPF不支持卫星通信，且在无线通信网络内可部署多个UPF，选择合适的UPF通信，是确保PDU会话通信质量很关键的一步。
发明内容
本公开实施例提供一种信息处理方法及装置、通信设备及存储介质。
本公开实施例第一方面提供一种信息处理方法，由会话管理功能SMF执行，所述方法可包括：
获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
本公开实施例第二方面提供一种信息处理方法，由UPF执行，所述方法包括：
将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
本公开实施例第三方面提供一种信息处理装置，所述装置包括：获取模块，被配置为获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
本公开实施例第四方面提供一种信息处理装置，所述装置包括：发送模块，被配置为将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF的卫星连接能力。
本公开实施例第五方面提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如前述第一方面或第二方面提供的信息处理方法。
本公开实施例第六方面提供一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现前述的第一方面或第二方面提供的信息处理方法。
本公开实施例提供的技术方案，SMF会获取到指示UPF是否支持卫星连接的UPF能力信息，如此在进行PDU会话建立的情况下，可以根据UPF能力信息选择合适UPF，从而确保PDU会话通信质量。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1A是根据一示例性实施例示出的一种无线通信系统的结构示意图；
图1B是根据一示例性实施例示出的一种无线通信系统的结构示意图；
图2A是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图2B是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图2C是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图2D是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图2E是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图2F是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图3A是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图3B是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图3C是根据一示例性实施例示出的一种信息处理方法的流程示意图；
图3D是根据一示例性实施例示出的一种PDU会话建立的流程示意图；
图4是根据一示例性实施例示出的一种信息处理装置的结构示意图；
图5是根据一示例性实施例示出的一种信息处理装置的结构示意图；
图6是根据一示例性实施例示出的一种通信设备的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施 例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1A，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1A所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个UE11以及若干个接入设备12。
其中，UE11可以是指向用户提供语音和/或数据连通性的设备。UE11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，UE11可以是物联网UE，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网UE的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程UE(remote terminal)、接入UE(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户UE(user equipment，UE)。或者，UE11也可以是无人飞行器的设备。或者，UE11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，UE11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
接入设备12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，接入设备12可以是4G系统中采用的演进型接入设备(eNB)。或者，接入设备12也可以是5G系统中采用集中分布式架构的接入设备(gNB)。当接入设备12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对接入设备12的具体实现方式不加以限定。
接入设备12和UE11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，UE11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个接入设备12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本公开实施例不做限定。
如图1B所示，UE通过接入网络(Access Network，AN)或者无线接入网(Radio Access Network，RAN)接入到网络，AN/RAN和UPF之间可能需要卫星链路形成卫星回传链路。
如图2A所示，本公开实施例提供一种信息处理方法，其中，由会话管理功能SMF执行，所述方法可包括：
S110：获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
UPF能力信息，至少可供SMF确定对应的UPF是否支持卫星连接，如果支持卫星连接，则UPF具有卫星通信能力，如果不支持卫星连接，则该UPF不具有卫星通信能力。若UPF支持卫星通信，则UPF与卫星之间可以建立通信链路，如此基站和UPF之间的连接可以经过卫星进行中转，从而确保更大覆盖面积、更长距离通信和更少遮挡的非地面通信。如果对应的PDU会话的双方无需经过长距离，或者延时容忍度低，则可能不适用于通过卫星中转通信，可能对UPF是否支持卫星通信的能力没有限制。
总之，在本公开实施例中，SMF会获取到UPF能力信息，从而知晓对应的UPF是否支持卫星通信，如此在建立PDU会话时，可以选择更加合适当前PDU会话的UPF参与基站之间的连接，从而实现卫星通信场景下的PDU会话建立。
如图2B所示，本公开实施例提供一种信息处理方法可包括：
S111：从UPF接收UPF能力信息。
即UPF自身会将UPF能力信息发送给SMF，如此，SMF不用预置UPF能力信息，且UPF在有能力更新或者有UPF更新时，SMF都能够通过从对应的UPF接收到UPF能力信息，从而确保SMF获取的UPF能力信息的精准性。
示例性地，S111可包括以下至少之一：
在检测到有UPF更新，从UPF接收UPF能力信息，该UPF更新包括：UPF增加、UPF替换、UPF删除和/或UPF升级；
在检测到有UPF能力更新，例如，有的UPF从不支持卫星连接通过能力部署增加等更新方式，切换为支持卫星连接，再例如，有的UPF能力简化，可能从支持卫星连接，通过关闭对应功能等更新方式切换为不支持卫星连接，此时SMF从对应的UPF获取UPF能力信息，方便后续根据精准的 UPF能力信息进行PDU会话等；
周期性从UPF接收UPF能力信息；
基于预设事件的触发从UPF请求UPF能力信息；该预设事件包括但不限于：PDU会话请求中携带的卫星通信请求和/或确定出卫星经过SMF所连接地面网络的覆盖区域。
当然以上仅是举例，具体实现时不局限于上述举例。
在一些实施例中，SMF会预先配置UPF能力信息，则SMF需要UPF能力信息时，直接读取预先配置的UPF能力信息即可。
此处的预先配置，可以写入SMF的配置信息中或者写入通信协议中，如此，SMF可以通过读取配置信息或者通信协议，确定UPF能力信息。
故因此，本公开实施例还提供一种信息处理方法，可如图2C所示，包括：
S112：获取预先配置的UPF能力信息。
本公开实施例提供一种信息处理方法，可如图2D所示，可包括：
S101：向UPF发送请求信息；
S111：从所述UPF接收基于所述请求信息返回的UPF能力信息。
即在一些实施例中，SMF在获取UPF能力信息之前，向UPF发送请求信息，该请求信息，用于请求UPF能力信息。如此，在本技术方案中，SMF接收到的UPF能力信息是基于SMF发送的请求信息返回的。
若SMF从UPF接收UPF能力信息，则SMF可以通过发送请求信息的方式，触发UPF向SMF返回UPF能力信息，如此，SMF可以在有需要的时候，向UPF请求UPF能力信息，而不需要的时候就不用发送请求信息，来触发UPF向SMF返回UPF能力信息，从而减少了UPF和SMF之间不必要的信息传输。
在一些实施例中，所述向所述UPF发送请求信息，包括：
响应于所述SMF启动N4关联，向所述UPF发送N4关联建立请求；
其中，所述UPF能力信息携带在所述N4关联建立请求的N4关联建立响应中。
此处的“响应于所述SMF启动N4关联”相当于：在SMF启动N4关联或者当SMF启动N4关联时，向UPF发送携带有前述请求UPF能力信息的N4关联建立请求，如此，则在SMF与UPF之间的N4关联的建立过程中，SMF就知晓了UPF的UPF能力信息，且利用的N4关联建立过程中的消息，无需引入专门的消息信令，具有实现简便的特点。
该N4关联建立响应是UPF基于N4关联建立请求发送的，该N4关联建立请求和N4关联建立响应还用于UPF和SMF之间建立N4关联。
在一些实施例中，UPF可能会向其连接的SMF主动推送UPF能力信息，如此，SMF会接收到UPF主动推送的携带有UPF能力信息的消息。
示例性地，UPF在确定自身的UPF能力信息有更新时或者达到更新周期时，都可以主动向SMF推送携带有UPF能力信息的消息，以便SMF知晓UPF是否支持卫星连接的能力。
示例性地，所述从UPF接收所述UPF能力信息，包括：接收所述UPF主动推送的携带有所述UPF能力信息的消息。
所述接收所述UPF主动推送的携带有所述UPF能力信息的消息，包括：响应于所述UPF启动N4关联，接收携带有所述UPF能力信息的N4关联消息。
N4关联的启动可以由SMF或者UPF执行。若SMF启动N4关联，则由SMF发送N4关联请求消息，从而使得UPF在N4关联响应消息中携带UPF能力信息。若UPF启动N4关联，则由UPF发送N4关联消息给SMF。示例性地，该N4关联消息可为N4关联请求消息但不限于N4关联请求消息。该N4关联请求消息携带有UPF能力信息。
总之，在本公开实施例中，SMF和UPF之间可以通过N4关联过程中的N4关联消息来交互UPF能力信息。
在一些实施例中，所述方法还包括：
SMF可以根据UPF能力信息，选择合适的UPF建立基站与UPF之间的PDU会话。
在一些实施例中，所述SMF可以根据UPF能力信息，选择合适的UPF建立基站与UPF之间的PDU会话，包括：
响应于基站和UPF之间需部署卫星回传链路，根据所述UPF能力信息，选择支持卫星连接的UPF建立PDU会话。
卫星回传链路，需要卫星参与，因此需要UPF具有卫星连接能力，从而能够与卫星连接建立有卫星回传链路。
在一些实施例中，SMF可以根据UPF能力信息，选择合适的UPF建立基站与UPF之间的PDU会话，包括：
响应于基站和UPF之间部署非卫星回传链路，根据所述UPF能力信息，选择支持卫星连接或者不支持卫星连接的UPF建立PDU会话。
非卫星回传链路为：不需要卫星参与的回传链路。典型的非卫星回传链路可包括：地面设备所形成的回传链路，示例性地，3G或者4G等蜂窝移动通信网络形成的回传链路。
如图3A所示，本公开实施例提供一种信息处理方法，由UPF执行，所述方法包括：
S210：将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
本公开实施例中UPF执行的信息处理方法，UPF可以由UPF能力信息发送给SMF。UPF能力信息指示UPF是否具有卫星连接能力(UPF支持卫星连接)，UPF能够与卫星连接，建立卫星回传链路。如果UPF不具有卫星连接能力(UPF支持卫星连接)，UPF不能够与卫星连接，不能够参与卫星回传链路。
在一些实施例中，所述将UPF能力信息发送给SMF，包括：
响应于所述UPF支持卫星连接，将所述UPF能力信息发送给所述SMF。
在本实施例中，UPF支持卫星连接，则将指示自身支持卫星连接的UPF能力信息发送给SMF。UPF不支持卫星连接，则可以不用上报指示UPF是否支持卫星连接的UPF能力信息。如果SMF没 有接收到指示UPF支持卫星连接的UPF能力信息，则SMF会默认UPF不支持卫星连接。
如图3B所示，本公开实施例提供一种信息处理方法可包括：
S211：基于SMF发送的请求信息，将UPF能力信息发送给所述SMF。
如图3C所示，本公开实施例提供一种信息处理方法可包括：
S212：主动将UPF能力信息发送给所述SMF。
在一些实施例中，SMF会发送请求信息，则UPF根据基于请求信息将UPF能力信息发送给SMF，从而使得SMF接收到UPF能力信息。
在另一些实施例中，UPF会主动推送UPF能力信息给SMF，如此SMF则不用发送请求信息的情况下接收到UPF能力信息。
在一些实施例中，所述请求信息包括：在由SMF启动N4关联建立时发送的N4关联建立请求；
所述UPF能力信息携带在所述N4关联建立请求的关联建立响应中。
在N4关联过程中关联请求消息和/或关联建立响应携带UPF能力信息，从而SMF和UPF之间进行UPF能力信息。
在一些实施例中，所述主动将所述UPF能力信息发送给所述SMF，包括：响应于所述UPF启动N4关联，向所述SMF发送携带有所述UPF能力信息的N4关联消息。
由UPF启动N4关联，则UPF可以主动将UPF能力信息通过N4关联消息发送给SMF，而不用专用信令发送UPF能力信息。
如图4所示，本公开实施例提供一种信息处理装置，其中，由会话管理功能SMF执行，所述装置包括：
获取模块410，被配置为获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
在一些实施例中，所述获取模块410可为程序模块；程序模块被处理器执行之后，能够获取到UPF能力信息。
在另一些实施例中，所述获取模块410可为软硬结合模块；所述软硬结合模块包括各种可编程阵列；所述可编程阵列包括但不限于：现场可编程阵列或者复杂可编程阵列。
在还有一些实施例中，所述获取模块410可为纯硬件模块；所述纯硬件模块包括但不限于专用集成电路。
在一些实施例中，所述获取模块410，被配置为从UPF接收所述UPF能力信息；或者，获取预先配置的所述UPF能力信息。
在一些实施例中，所述装置还包括：
发送模块，被配置为向所述UPF发送请求信息；
所述获取模块410，被配置为从所述UPF接收基于所述请求信息返回的所述UPF能力信息。
在一些实施例中，所述发送模块，被配置为响应于所述SMF启动N4关联，向所述UPF发送N4关联建立请求；
其中，所述UPF能力信息携带在所述N4关联建立请求的N4关联建立响应中。
在一些实施例中，所述获取模块410，被配置为接收所述UPF主动推送的携带有所述UPF能力信息的消息。
在一些实施例中，所述获取模块410，被配置为响应于所述UPF启动N4关联，接收携带有所述UPF能力信息的N4关联消息。
在一些实施例中，所述装置还包括：
建立模块，被配置为响应于基站和UPF之间需部署卫星回传链路，根据所述UPF能力信息，选择支持卫星连接的UPF建立PDU会话；或者，响应于基站和UPF之间部署非卫星回传链路，根据所述UPF能力信息，选择支持卫星连接或者不支持卫星连接的UPF建立PDU会话。
如图5所示，本公开实施例提供一种信息处理装置，所述装置包括：
发送模块510，被配置为将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF的卫星连接能力。
在一些实施例中，所述发送模块510可为程序模块；程序模块被处理器执行之后，能够UPF能力信息发送SMF。
在另一些实施例中，所述发送模块510可为软硬结合模块；所述软硬结合模块包括各种可编程阵列；所述可编程阵列包括但不限于：现场可编程阵列或者复杂可编程阵列。
在还有一些实施例中，所述发送模块510可为纯硬件模块；所述纯硬件模块包括但不限于专用集成电路。
在一些实施例中，所述发送模块510，被配置为响应于所述UPF支持卫星连接，将所述UPF能力信息发送给所述SMF。
在一些实施例中，所述发送模块510，被配置为基于所述SMF发送的请求信息，将所述UPF能力信息发送给所述SMF；或者，主动将所述UPF能力信息发送给所述SMF。
在一些实施例中，所述请求信息包括：在由SMF启动N4关联建立时发送的N4关联建立请求；
所述UPF能力信息携带在所述N4关联建立请求的关联建立响应中。
在一些实施例中，所述发送模块510，被配置为响应于所述UPF启动N4关联，向所述SMF发送携带有所述UPF能力信息的N4关联消息。
如果UE使用电信网络启动应用程序，则应根据相关标准强制执行UE和核心网元之间的某些程序，例如注册，PDU会话建立等
电信网络5G网络或者4G网络。
参考图3D所示，UE注册成功后，将按照以下步骤启动PDU会话建立过程，可包括：
1)UE向AMF发送PDU会话建立请求，该会话建立请求通过接入网络(Access Network，AN)或者无线接入网络(Radio Access Network，RAN)。如图3E所示，RAN或AN可以简写为(R)AN。2)AMF确定该PDU会话建立请求是否为新PDU会话的请求。
3)如果是新的PDU会话的请求则AMF触发SMF启动Nsmf_PDUSession_CreateSMContext， 如果不是新的PDU会话的请求，则AMF触发SMF启动Nsmf_PDUSession_UpdateSMContext。
4)如果需要，可以在UE和网络之间强制执行二级身份验证或授权。例如，针对加密通信，则UE和网络之间可以强制执行二级身份验证或授权。
5)如果动态策略控制和计费(Policy and Charging，PCC)将用于PDU会话，则SMF按照相关技术中及PCC执行策略控制功能(Policy Control Function，PCF)选择。
6)SMF可以执行SM策略关联建立程序，以与PCF建立SM策略关联。
7)SMF根据UPF选择机制根据需要选择一个或多个UPF。
8)SMF用选定的UPF启动N4会话建立/修改过程。
9)执行Namf_Communication_N1N2MessageTransfer以在AMF和SMF之间交换信息。
10)在RAN和AMF之间建立N2会话。AMF将针对UE的NAS消息和PDU会话建立接受以及在N2PDU会话请求内从SMF接收的N2SM信息发送给(R)AN。
11)AN或RAN可以与UE发布与从SMF接收的信息有关的特定信令交换。AN或RAN将NAS消息转发给UE。
12)PDU会话建立过程的其他流程，此处的其他流程可以参考相关技术，具体不做限定。
由于将在网络中部署多个UPF。不同的UPF可能具有不同的功能或位置。因此，当建立PDU会话时，SMF将通过考虑UPF部署方案来选择或重新选择适当的UPF(如步骤X所示)。
UPF选择涉及可包括：
提供可用UPF的SMF设置步骤。即便没有要建立的PDU会话时，也可能会发生此步骤。UPF和SMF可以交换UPF能力信息。
为特定的PDU会话选择UPF的步骤。
SMF通过参考以下信息进行UPF选择：
UPF的动态负载；
SMF提供UPF位置；
UE位置信息；
数据网络名称(DNN)；
PDU会话类型等等。
选择UPF之后，可以建立SMF和UPF之间的N4关联，并执行该过程的其余步骤，从而成功建立PDU会话。基于该过程，UE可以开始应用。
但是在某些情况下，5G网络应支持卫星回传链路，如图1B所示。
在这种情况下，并非网络中所有的UPF都具有与卫星连接的能力，有些UPF支持卫星连接，而另一些则不能卫星连接。由于SMF缺乏支持卫星连接的UPF的UPF能力信息，因此SMF无法使用当前解决方案选择正确的UPF。
本公开实施例提供一个信息处理方法，可包括：为UPF提供一个UPF能力信息，以说明UPF是否支持卫星连接。
SMF知晓此能力信息(即为前述UPF能力信息)，以便在使用卫星回传链路时选择正确的UPF。
在本公开实施例中，引入UPF的属性以说明UPF是否具有支持卫星连接的能力，然后，可以在PDU会话建立期间选择或重新选择正确的UPF。
UPF卫星连接能力的配置在PDU会话建立之前的，使用N4节点级别过程(N4关联)在UPF和SMF之间交换功能，包括卫星功能。
第一种情况是N4关联由SMF启动，如图2E所示：
1)SMF向UPF发起N4关联建立请求。
2)如果UPF支持卫星连接功能，则UPF向包含此信息的SMF返回N4关联建立响应。基于N4关联，SMF可以了解哪些UPF具有卫星连接功能。
第二种情况是N4关联是由UPF启动的，如图2F所示：
1)UPF可以启动N4关联，以请求建立与SMF的N4关联，如果UPF支持卫星连接功能，则UPF在N4关联建立请求中携带指示UPF支持卫星连接的UPF能力信息。
2)SMF存储此UPF能力信息，并向UPF发送N4关联建立响应。
基于卫星连接能力的UPF选择，除了步骤7外，其他步骤与图3E中的相应步骤相同。如果SMF知道卫星回传链路用于RAN和UPF之间的N3连接，或者SMF从AMF接收到此信息，则SMF应该基于UPF执行UPF选择。
UPF是否支持卫星连接的能力，可以在SMF或其他网络功能(Network Function，NF)，例如，该NF可包括AMF。示例性地，在AMF上预先配置指示UPF是否具有卫星连接的UPF能力信息。如果需要建立N4会话，SMF可以根据预先配置的UPF能力信息选择UPF。
SMF获取有关UPF卫星连接功能的UPF能力信息并将其存储。
该UPF能力信息表明，UPF具有使用卫星回传链路与gNB连接的能力。
SMF从支持此功能的UPF获取此UPF能力信息，或者可以在SMF中预先配置此UPF能力信息。
当在gNB和UPF之间部署卫星回传链路时，SMF基于UPF卫星连接能力为PDU会话选择正确的UPF，如果UPF支持卫星连接，则UPF可将此能力信息提供给SMF，该规定可以主动基于UPF或根据SMF的要求。
本公开实施例提供一种通信设备，包括：
用于存储处理器可执行指令的存储器；
处理器，分别存储器连接；
其中，处理器被配置为执行前述任意技术方案提供的终端的控制方法和/或信息处理方法。
处理器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。
这里，所述通信设备包括：SMF或UPF。
所述处理器可以通过总线等与存储器连接，用于读取存储器上存储的可执行程序，例如，如图 2A至图2F、图3A至图3D所示的信息处理方法的至少其中之一。
如图5所示，本公开一实施例示出一种通信设备的结构。例如，通信设备900可以被提供为任意的核心网设备，例如，至少可为前述的SMF和/或UPF。
参照图13，通信设备900包括处理组件922，其进一步包括一个或多个处理器，以及由存储器932所代表的存储器资源，用于存储可由处理组件922的执行的指令，例如应用程序。存储器932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件922被配置为执行指令，以执行上述方法前述应用在所述接入设备的任意方法，例如，，如图2、图3至图5、图6A至图6D、图7A至图7B、和/或图8A至图8C所示方法。
通信设备900还可以包括一个电源组件926被配置为执行通信设备900的电源管理，一个有线或无线网络接口950被配置为将通信设备900连接到网络，和一个输入输出(I/O)接口958。通信设备900可以操作基于存储在存储器932的操作系统，例如Windows Server TM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM或类似。
本公开实施例还面提供一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现前述任意技术方案提供的信息处理方法，如图2A至图2F、图3A至图3D所示的信息处理方法的至少其中之一。
该计算机存储介质可为非瞬间存储介质，示例性地，该非瞬间存储介质可包括：光盘、硬盘、磁带或者U盘或者闪存器等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (16)

  1. 一种信息处理方法，其中，由会话管理功能SMF执行，所述方法可包括：
    获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
  2. 根据权利要求1所述的方法，其中，所述获取用户面功能UPF的能力信息，包括：
    从UPF接收所述UPF能力信息；
    或者，
    获取预先配置的所述UPF能力信息。
  3. 根据权利要求2所述的方法，其中，所述方法还包括：
    在所述获取用户面功能UPF能力信息之前，向所述UPF发送请求信息；
    并且，所述从UPF接收所述UPF能力信息，包括：
    从所述UPF接收基于所述请求信息返回的所述UPF能力信息。
  4. 根据权利要求3所述的方法，其中，所述向所述UPF发送请求信息，包括：
    响应于所述SMF启动N4关联，向所述UPF发送N4关联建立请求；
    其中，所述UPF能力信息携带在所述N4关联建立请求的N4关联建立响应中。
  5. 根据权利要求2所述的方法，其中，所述从UPF接收所述UPF能力信息，包括：
    接收所述UPF主动推送的携带有所述UPF能力信息的消息。
  6. 根据权利要求5所述的方法，其中，所述接收所述UPF主动推送的携带有所述UPF能力信息的消息，包括：
    响应于所述UPF启动N4关联，接收携带有所述UPF能力信息的N4关联消息。
  7. 根据权利要求1至6任一所述的方法，其中，所述方法还包括：
    响应于基站和UPF之间需部署卫星回传链路，根据所述UPF能力信息，选择支持卫星连接的UPF建立PDU会话；
    或者，
    响应于基站和UPF之间部署非卫星回传链路，根据所述UPF能力信息，选择支持卫星连接或者不支持卫星连接的UPF建立PDU会话。
  8. 一种信息处理方法，由用户面功能UPF执行，所述方法包括：
    将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
  9. 根据权利要求8所述的方法，所述将UPF能力信息发送给SMF，包括：
    响应于所述UPF支持卫星连接，将所述UPF能力信息发送给所述SMF。
  10. 根据权利要求8或9所述的方法，其中，所述将UPF能力信息发送给SMF，包括：
    基于所述SMF发送的请求信息，将所述UPF能力信息发送给所述SMF；
    或者，
    主动将所述UPF能力信息发送给所述SMF。
  11. 根据权利要求10所述的方法，其中，所述请求信息包括：在由SMF启动N4关联建立时发送的N4关联建立请求；
    所述UPF能力信息携带在所述N4关联建立请求的关联建立响应中。
  12. 根据权利要求10所述的方法，其中，所述主动将所述UPF能力信息发送给所述SMF，包括：
    响应于所述UPF启动N4关联，向所述SMF发送携带有所述UPF能力信息的N4关联消息。
  13. 一种信息处理装置，其中，所述装置包括：
    获取模块，被配置为获取用户面功能UPF能力信息，其中，所述UPF能力信息，至少指示UPF支持卫星连接。
  14. 一种信息处理装置，所述装置包括：
    发送模块，被配置为将UPF能力信息发送给SMF，其中，所述UPF能力信息，至少指示UPF的卫星连接能力。
  15. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如权利要求1至7、或8至12任一项提供的方法。
  16. 一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现如权利要求1至7或8至12任一项提供的方法。
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