WO2020024881A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2020024881A1
WO2020024881A1 PCT/CN2019/097920 CN2019097920W WO2020024881A1 WO 2020024881 A1 WO2020024881 A1 WO 2020024881A1 CN 2019097920 W CN2019097920 W CN 2019097920W WO 2020024881 A1 WO2020024881 A1 WO 2020024881A1
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Prior art keywords
data packet
network element
ethernet data
policy
selection information
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PCT/CN2019/097920
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English (en)
French (fr)
Inventor
王远
陈中平
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华为技术有限公司
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Publication of WO2020024881A1 publication Critical patent/WO2020024881A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a communication method and device.
  • the network side can know the registration area where the terminal device is located, that is, the tracking area list (TAL). If the network side needs to send data to the terminal device, the network side needs to send the data to the terminal device. All base stations in the TAL send a paging request, and the base station pages the terminal device. After paging to the terminal device, the terminal device sends a service registration request and enters the connected state.
  • the tracking area list TAL
  • the fifth-generation (5th-generation, 5G) standard defines that the network side can send Ethernet data packets to terminal equipment. If the network side sends an Ethernet data packet to a certain terminal device and the terminal device is in an idle state, the network side paging will be triggered. However, because different terminal equipment or different types of business Ethernet packets may need to apply different paging strategies, when the network side needs to issue Ethernet packets, how to determine the paging strategy to use, there is currently no relevant Technical solutions.
  • the embodiments of the present application provide a communication method and device, which are used to determine a paging policy when an Ethernet data packet is delivered.
  • an embodiment of the present application provides a communication method.
  • the method includes:
  • the session management network element obtains the correspondence between the policy selection information and the paging policy information; the session management network element obtains the first policy selection information of the Ethernet data packet to be sent to the terminal device; and the session management network element The first policy selection information and the corresponding relationship, determining first paging policy information corresponding to the Ethernet data packet, and sending the first paging policy information to a mobility management network element; the first search
  • the call policy information is used to indicate a policy used by the mobility management network element when paging the terminal device.
  • the session management network element may obtain the first policy selection information of the Ethernet data packet, and based on the first policy selection information and the policy selection information and the paging policy information obtained by the session management network element. The corresponding relationship between the two, determines the first paging policy information corresponding to the Ethernet data packet, and then sends the first paging policy information to the mobility management network element. In this way, the mobility management network element can page the terminal device using the paging policy indicated by the first paging policy information, so that when the terminal device is paged, it can select information according to different first policies and execute different paging policies. .
  • the session management network element obtaining the first policy selection information of the Ethernet data packet to be sent to the terminal device may have multiple possible implementation manners, wherein one possible implementation manner is that the session management network Receiving the first policy selection information sent by the user management network element; another possible implementation manner is that the session management network element receives the Ethernet data packet sent by the user management network element, and according to the The Ethernet data packet determines the first policy selection information.
  • the first policy selection information may be a preset field in a packet header of an Ethernet data packet, for example, an Ethernet type Ethertype field or a user priority User Priority field.
  • the user management network element can either receive the first policy selection information determined by the user management network element according to the preset field, or determine the first field by identifying the preset field after receiving the Ethernet data packet sent by the user management network element.
  • a strategy selection information thereby increasing the flexibility of obtaining the first strategy selection information.
  • the preset field may be an Ethertype field in a header of an Ethernet data packet, and the Ethertype field is used to indicate a protocol type of data carried by the Ethernet data packet.
  • the session management network element The first paging policy information can be determined according to the protocol type of the data carried by the Ethernet data packet, and sent to the mobility management network element, so that the mobility management network element can use the search corresponding to the protocol type of the data carried by the Ethernet data packet.
  • the call strategy pages the terminal equipment.
  • the preset field may be a UserPriority field in a header of an Ethernet data packet, and the UserPriority field is used to indicate a priority of the Ethernet data packet.
  • the session management network element may The priority of the Ethernet data packet determines the first paging policy information and sends it to the mobility management network element, so that the mobility management network element can use the paging policy corresponding to the priority of the Ethernet data packet to page the terminal device.
  • the first policy selection information may also indicate a 5QI for the fifth generation mobile communication technology service quality.
  • the session management network element may determine the first paging policy information according to the 5QI corresponding to the Ethernet data packet. And send it to the mobility management network element.
  • the mobility management network element can use the paging policy corresponding to the 5QI of the Ethernet data packet to page the terminal device. Because the value of 5QI can reflect the quality of service applied when data packets are forwarded, it is possible to perform different paging policies based on different 5QIs when paging the terminal device.
  • an embodiment of the present application provides another communication method.
  • the method includes:
  • a user management network element receives an Ethernet data packet to be sent to a terminal device; the user management network element obtains first policy selection information of the Ethernet data packet, and sends the first policy selection information to a session management network element; The first policy selection information is used by the session management network element to determine first paging policy information corresponding to the Ethernet data packet, and the first paging policy information is used to instruct a mobility management network element to page the The policy to be used on the end device.
  • the user management network element may obtain and receive the Ethernet data packet to be sent to the terminal device, obtain the first policy selection information of the Ethernet data packet, and send it to the session management network element.
  • the session management network element may determine the corresponding first paging policy information according to the first policy selection information, and the mobility management network element may use the first paging policy information to indicate The paging policy is used to page the terminal device, so that when the terminal device is paged, it can select information according to different first policies and execute different paging policies.
  • the first policy selection information may be a preset field in a packet header of an Ethernet data packet, such as an Ethernet type Ethertype field or a user priority User Priority field.
  • the user management network element obtaining the first policy selection information of the Ethernet data packet may be: the user management network element determines the first network information according to the preset field in a packet header of the Ethernet data packet. Strategy selection information.
  • the preset field may be an Ethertype field in a header of the Ethernet data packet, and the Ethertype field is used to indicate a protocol type of data carried by the Ethernet data packet.
  • the user management network element may determine the first policy selection information according to the Ethertype field in the header of the Ethernet data packet, and send the first policy selection information to the session management network element, so that The mobility management network element can use the paging policy corresponding to the protocol type of the data carried by the Ethernet data packet to page the terminal device.
  • the preset field may be a User Priority field in a header of the Ethernet data packet, and the User Priority field is used to indicate a priority of the Ethernet data packet.
  • the user management network element may determine the first policy selection information according to the User Priority field in the header of the Ethernet data packet, and send the first policy selection information to the session management network element, and then The mobility management network element can use the paging policy corresponding to the priority of the Ethernet data packet to page the terminal device.
  • the first policy selection information is a fifth-generation mobile communication technology service quality indication 5QI.
  • the user management network element determines the 5QI according to a filtering policy matching the Ethernet data packet, and sends the 5QI to the session management network element, so that the mobility management network element can use the 5QI address of the Ethernet data packet.
  • the corresponding paging policy pages the terminal device. Because the value of 5QI can reflect the quality of service applied when data packets are forwarded, it is possible to perform different paging policies based on different 5QIs when paging the terminal device.
  • an embodiment of the present application provides another communication device that has a function of implementing a session management network element in the first aspect or any possible design of the first aspect.
  • Corresponding software implementation may also be implemented by hardware, which includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a processing unit and a transceiving unit, and the processing unit is configured to support the communication device to perform the corresponding first aspect or any one of the first aspects of the design.
  • the transceiver unit is used to support communication between the communication device and other equipment.
  • the communication device may further include a storage unit, which is coupled to the processing unit and stores program instructions and data necessary for the communication device.
  • the processing unit may be a processor
  • the communication unit may be a transceiver
  • the storage unit may be a memory.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is caused to execute the foregoing first An approach in any of the possible design aspects.
  • an embodiment of the present application provides a computer program product.
  • the computer reads and executes the computer program product, the computer is caused to execute the method in any one of the possible designs in the first aspect.
  • an embodiment of the present application provides a chip that is connected to a memory and is configured to read and execute a software program stored in the memory to implement any one of the possible designs in the first aspect. method.
  • an embodiment of the present application provides another communication device, which has a function of implementing a user management network element in the second aspect or any one of the possible designs of the second aspect.
  • Corresponding software implementation may also be implemented by hardware, which includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a processing unit and a transceiving unit, and the processing unit is configured to support the communication device to execute the corresponding second aspect or any one of the second aspect of the design.
  • the transceiver unit is used to support communication between the communication device and other equipment.
  • the communication device may further include a storage unit, which is coupled to the processing unit and stores program instructions and data necessary for the communication device.
  • the processing unit may be a processor
  • the communication unit may be a transceiver
  • the storage unit may be a memory.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is caused to execute the second embodiment
  • an embodiment of the present application provides a computer program product.
  • the computer reads and executes the computer program product, the computer is caused to execute the method in any one of the possible designs of the second aspect.
  • an embodiment of the present application provides a chip that is connected to a memory and is configured to read and execute a software program stored in the memory to implement any one of the possible designs in the second aspect. method.
  • an embodiment of the present application provides a communication system.
  • the system includes a session management network element and a user management network element.
  • the session management network element may be configured to execute the first aspect or any of the first aspect.
  • the method described in the possible design, or the method performed by the session management network element in the solution provided in the embodiment of this application; the user management network element may be used to implement the second aspect or any one of the possible designs in the second aspect The method described above, or the method performed by the user management network element in the solution provided in the embodiment of the present application.
  • the system may further include other devices that interact with the session management network element and / or the user management network element in the first and second aspects, such as a mobility management network element, and the mobility
  • the management network element may be used to execute the method performed by the mobility management network element in the solution provided in the embodiment of the present application.
  • an embodiment of the present application provides a communication system.
  • the system includes a session management network element, and the session management network element may be configured to implement the first aspect or any one of the possible designs in the first aspect.
  • the system may further include a user management network element, which may be used to execute the method described in the second aspect or any one of the possible designs of the second aspect, or the present application The method provided by the embodiment for the user management network element to perform.
  • the system may further include other devices that interact with the session management network element and / or the user management network element in the first and second aspects, such as a mobility management network element, and the mobility
  • the management network element may be used to execute the method performed by the mobility management network element in the solution provided in the embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture applicable to an embodiment of this application
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a frame format of an Ethernet frame defined in the Ethernet II protocol
  • FIG. 4 is a schematic diagram of a frame format of an Ethernet frame defined in the 802.3 protocol
  • 5 is a schematic diagram of a frame format of an Ethernet frame defined in the 802.1Q protocol
  • FIG. 6 is a schematic flowchart of a communication method provided in Embodiment 1 of this application.
  • FIG. 7 is a schematic flowchart of a communication method provided in Embodiment 2 of the present application.
  • FIG. 8 is a schematic flowchart of a communication method provided in Embodiment 3 of the present application.
  • Embodiment 9 is a schematic flowchart of a communication method provided in Embodiment 4 of the present application.
  • FIG. 10 is a schematic flowchart of a communication method provided in Embodiment 5 of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture applicable to an embodiment of the present application.
  • the network architecture includes a terminal device, an access network (AN), a core network (AN), and a data network (DN).
  • AN access network
  • AN core network
  • DN data network
  • the core network specifically includes authentication server function (AUSF), unified data management (UDM), access and mobility management function (core access and mobility management function (AMF), session management function ( Network elements such as session management function (SMF), policy control function (PCF), application function (AF), and user plane function (UPF).
  • AUSF authentication server function
  • UDM unified data management
  • AMF access and mobility management function
  • SMF session management function
  • PCF policy control function
  • AF application function
  • UPF user plane function
  • the interface between the terminal device and AMF is N1 interface
  • the interface between AN and AMF is N2 interface
  • the interface between AN and UPF is N3 interface
  • the interface between UPF and SMF is N4 interface
  • PCF and AF The interface is N5, the interface between UPF and DN is N6, the interface between SMF and PCF is N7, the interface between AMF and UDM is N8, and the interface between UPF and UPF is N9.
  • the interface between UDM and SMF is N10 interface
  • the interface between SMF and AMF is N11 interface
  • the interface between AMF and AUSF is N12 interface
  • the interface between AUSF and UDM is N13 interface
  • the interface between AMF and AMF The interface is an N14 interface
  • the interface between AMF and PCF is an N15 interface.
  • the terminal device is a portal for mobile users to interact with the network, and can provide basic computing capabilities and storage capabilities, display business windows to users, and accept user input.
  • the terminal equipment can establish signal connection and data connection with the AN, so as to transmit control signals and service data to the mobile network.
  • the terminal may be a device that provides voice and / or data connectivity to a user, including a wired terminal and a wireless terminal.
  • the wireless terminal may be a handheld device having a wireless connection function, or other processing equipment connected to a wireless modem, and a mobile terminal that communicates with one or more core networks via a wireless access network.
  • the wireless terminal may be a mobile phone, a computer, a tablet computer, a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, and an e-book reader Wait.
  • the wireless terminal may also be a portable, compact, handheld, computer-built or vehicle-mounted mobile device.
  • the wireless terminal may be a part of a mobile station (MS), an access point (AP), or a user equipment (UE).
  • the AN may be a radio access network (radio access network, RAN). It is similar to a base station in a traditional network. It is deployed near the terminal equipment, provides network access functions for authorized users in a specific area, and can use different quality transmission tunnels to transmit user data according to user levels and business requirements. AN can manage its own resources, make reasonable use, provide access services to terminal equipment as needed, and forward control signals and user data between the terminal equipment and the core network.
  • RAN radio access network
  • the core network is responsible for maintaining the contract data of the mobile network, managing the network elements of the mobile network, and providing terminal management with functions such as session management, mobility management, policy management, and security authentication.
  • the network receives the downlink data from the terminal equipment, forwards it to the (R) AN, and sends it to the terminal equipment.
  • the control plane of the core network includes AUSF, AMF, SMF, UDM, PCF, and AF
  • the user plane of the core network includes UPF.
  • AUSF is responsible for the safety certification of terminal equipment.
  • AMF is responsible for access management and mobility management of terminal equipment.
  • SMF is responsible for the session management of the terminal equipment.
  • UDM responsible for user contract context management.
  • PCF responsible for user policy management.
  • AF responsible for user application management.
  • the UPF is responsible for performing user packet forwarding according to the routing rules of the SMF.
  • a data network is a data network that provides business services to users.
  • the client is located on the terminal device and the server is located on the data network.
  • the data network can be a private network, such as a local area network, or an external network that is not controlled by the operator, such as the Internet, or a private network that is jointly deployed by the operator, such as a configured IP multimedia network subsystem multimedia core network (IMS) services.
  • IMS IP multimedia network subsystem multimedia core network
  • the communication systems applicable to the above network architecture include, but are not limited to: Code Division Multiple Access (CDMA) IS-95, Code Division Multiple Access (CDMA) 2000, Time Division Synchronous Code Division Multiple Access (CDMA) Division-Synchronous Code Division Multiple Access (TD-SCDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Duplexing-Long Term Evolution (TDD LTE), Frequency Division Dual Dual-LTE Frequency-Division, Duplexing-Long, Terminal-Evolution (FDD, LTE), Long-Term Evolution-Advanced (LTE-advanced), and various wireless communication systems (such as 5GNR systems) that will evolve in the future.
  • CDMA Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • TD-SCDMA Time Division Synchronous Code Division Multiple Access
  • TD-SCDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • TDD LTE Time Division Duplexing-Long Term Evolution
  • FDD Frequency Division
  • Another network architecture applicable to the embodiments of the present application may be that the network architecture includes a terminal device, an access network device, a session management network element, a mobility management network element, and a user management network element.
  • a terminal is a device with wireless transceiver capabilities that can be deployed on land, including indoor or outdoor, handheld, or vehicle-mounted; it can also be deployed on the water (such as a ship); it can also be deployed in the air (such as aircraft, balloons, and satellites) First class).
  • the terminal may be a mobile phone, a tablet, a computer with a wireless transmitting and receiving function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, or an industrial control.
  • An access network device is a device that provides wireless communication functions for terminals.
  • the access network equipment includes, for example, but is not limited to, a next-generation base station (gNB) in 5G, an evolved node B (eNB), a radio network controller (RNC), and a node B ( node (B, NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home nodeB, or home nodeB, HNB), baseband unit (baseBand unit) , BBU), transmission point (transmitting and receiving point (TRP), transmission point (transmitting point, TP), mobile switching center, etc.
  • gNB next-generation base station
  • eNB evolved node B
  • RNC radio network controller
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home nodeB, or home nodeB, HNB
  • baseband unit baseBand unit
  • BBU transmission point (transmitting and receiving
  • the session management network element is mainly used for session management in the mobile network, such as session establishment, modification, and release. Specific functions include assigning Internet protocol (IP) addresses to users, and selecting user plane network elements that provide message forwarding functions.
  • IP Internet protocol
  • the session management network element may be a session management function (SMF) network element.
  • SMF session management function
  • future communications such as 6G, the session management network element may still be an SMF network element or have another name. This application No restrictions.
  • Mobility management network elements are mainly used for mobility management in mobile networks, such as user location updates, user registration networks, and user switching.
  • the mobility management network element may be an access and mobility management function (AMF) network element.
  • AMF access and mobility management function
  • the mobility management network element may still be an AMF network. Yuan, or other names, this application does not limit this.
  • the user management network element is mainly used to perform user packet forwarding according to the routing rules of the session management network element.
  • the user management network element may be a user plane function (UPF) network element.
  • UPF user plane function
  • future communications such as 6G communication
  • the user management network element may still be a UPF network element or have another name. The application does not limit this.
  • the above functions can be network elements in a hardware device, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (such as a cloud platform).
  • the above network element or function may be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a session management network element is a session management function SMF network element
  • a user management network element is a user plane function UPF network element
  • a mobility management network element is an access and mobility management function AMF network element.
  • AMF AMF
  • SMF SMF
  • NRF NRF
  • the current 5G communication standard defines three types of 5G networks that support Internet Protocol (IP) type protocol data unit (PDU) sessions, Ethernet type PDU sessions, and unstructured PDU sessions. Conversation.
  • IP Internet Protocol
  • PDU protocol data unit
  • Ethernet type PDU sessions Ethernet type PDU sessions
  • unstructured PDU sessions unstructured PDU sessions.
  • Conversation For Ethernet type PDU sessions, the current standard has not yet provided a solution on how the network side should determine the paging policy of the terminal device.
  • the paging policy may include, but is not limited to: a paging retransmission mechanism (that is, the frequency or time interval of paging), and whether the AMF is under a high load Paging terminal equipment, whether to apply sub-area paging, for example, whether to issue a paging in the last tracking area (TA) or cell of the terminal equipment, and then paging in the entire registration area of the terminal equipment.
  • a paging retransmission mechanism that is, the frequency or time interval of paging
  • sub-area paging for example, whether to issue a paging in the last tracking area (TA) or cell of the terminal equipment, and then paging in the entire registration area of the terminal equipment.
  • Ethernet-type PDU sessions can be used to carry multiple types of services, and the real-time nature of data communication of different types of services, Reliability requirements may be different. Therefore, it is necessary to apply different paging policies for different flows or services in an Ethernet type PDU session.
  • 3GPP 3rd Generation Partnership Project
  • an industrial terminal device can initiate an Ethernet-type PDU session to access a deployed industrial Ethernet through a 3GPP network.
  • Ethernet data transmitted by industrial communications There are two main types of Ethernet data transmitted by industrial communications.
  • One is real-time communication with high reliability requirements, such as industrial control signaling and closed-loop feedback.
  • the other is non-instant communication with lower real-time requirements and higher data rates, such as broadcast messages and data messages. Therefore, for different types of data packets in an Ethernet PDU session, the 3GPP network should provide different paging policies to ensure that instant messaging can be sent to idle terminal devices in a timely manner, while non-immediate communications can be temporarily buffered in On the network side, avoid frequent wake-up of terminal devices.
  • an embodiment of the present application provides a communication method for determining a paging policy of a terminal device when the network device triggers paging of the terminal device.
  • the communication method includes the following steps S201 to S204:
  • Step S201 the session management function network element obtains the correspondence between the policy selection information and the paging policy information
  • Step S202 The session management function network element obtains first policy selection information of an Ethernet data packet to be sent to a terminal device;
  • Step S203 the session management function network element determines the first paging policy information corresponding to the Ethernet data packet according to the first policy selection information and the correspondence relationship, and sends the first paging policy information To the access management function network element;
  • Step S204 The access management function network element receives the first paging policy information sent by the session management function network element, and uses the paging policy indicated by the first paging policy information to page the terminal device.
  • the session management function network element may obtain first policy selection information of the Ethernet data packet, and determine a first paging policy of the Ethernet data packet according to the first policy selection information Information, and send the first paging policy information to the access management function network element, so that the access management function network element uses the paging policy indicated by the first paging policy information to page the terminal device.
  • step S301 there is a downlink data packet to be sent to the terminal device in the core network.
  • the downlink data packet may be received by a user plane function network element in the core network from the data network. Because the terminal device is in an idle state when the downlink data packet is received, the core network will trigger the device paging process.
  • the downlink data packet may specifically be an Ethernet data packet.
  • the terminal device is a terminal device that once established an Ethernet type PDU session, but then switched back to the idle state. It can be understood that only if an Ethernet type PDU session has been established, the data network will actively send Ethernet data packets to the terminal device, and there will be an Ethernet data packet to be sent to the terminal device in the core network.
  • the corresponding relationship between each policy selection information and the paging policy information can be acquired in the session management function network element.
  • the policy selection information is information used to select and determine a paging policy.
  • the policy selection information may be a preset field (such as an EtherType field or a User Priority field) in the header of an Ethernet data packet, or may be a fifth-generation mobile communication technology service. Quality indication 5QI.
  • the session management function network element may obtain the corresponding relationship from its own local storage, or may obtain it from other network elements in the network architecture described above, which is not specifically limited in the embodiment of the present application.
  • the embodiment of the present application uses the session network management network element obtained from the local storage as an example for description. It should be noted that when the session management network element obtains the corresponding relationship locally, the corresponding relationship may be pre-configured by the session management function network element and stored locally.
  • the session management function network element may obtain first policy selection information of the Ethernet data packet to be sent to the terminal device.
  • the first policy selection information may be a preset field in a header of the Ethernet data packet, or may be a fifth-generation mobile communication technology service quality indicator (5G QoS indicator).
  • the session management function network element can obtain the first information in the following two ways:
  • the session management function network element receives the first information sent by the user plane function network element, that is, after the user plane function network element receives the Ethernet data packet sent by the data network, it recognizes the preamble in the header of the Ethernet data packet. Set a field to determine the first policy selection information, and then send the first policy selection information to the session management function network element.
  • the session management function network element may adopt the first acquisition method in a scenario where it is determined that the user who sends the Ethernet data packet to the terminal device through the core network.
  • the user plane function network element may send the first policy selection information in multiple ways. For example, after the user plane function network element determines the first policy selection information of the Ethernet data packet, it sends a downlink data notification message to the session management function network element to indicate that the Ethernet data packet of the terminal device has been received. Therefore, the user plane function network element may carry the first policy selection information in the downlink data notification message, so as to implement sending the first policy selection information to the session management function network element.
  • the second acquisition method The session management function network element determines the first policy selection information according to the header of the Ethernet data packet, that is, the user plane function network element sends the Ethernet data packet to the session after receiving the Ethernet data packet sent by the data network.
  • the management function network element, the session management function network element identifies a preset field in a packet header of the Ethernet data packet, and determines first policy selection information.
  • the second acquisition method when determining that the network element for the session management function sends an Ethernet data packet to the terminal device through control, the second acquisition method is adopted.
  • the preset field may be an Ethernet type EtherType field in a header of an Ethernet data packet, such as an EtherType in an Ethernet frame format defined in Ethernet II protocol, 802.3 protocol, or other protocols. Field.
  • FIG. 3 and Figure 4 are schematic diagrams of the frame format of the Ethernet frame defined in the Ethernet II protocol and the 802.3 protocol, respectively.
  • the EtherType field is called the protocol type field
  • the EtherType field is called the type length field
  • the EtherType fields defined in each occupy a length of two bytes.
  • the EtherType field is used to identify the protocol type of the data carried in the Ethernet data packet (that is, the Ethernet frame). Different protocol types use different values to distinguish them. For example, 0x0080 represents Internet Protocol Version 4 (IPv4), 0x0806 represents Address Resolution Protocol (ARP), and 0x8864 represents Point-to-Point Protocol (Ethernet, PPPoE) based on Ethernet.
  • IPv4 Internet Protocol Version 4
  • ARP Address Resolution Protocol
  • 0x8864 represents Point-to-Point Protocol (Ethernet, PPPoE) based on Ethernet.
  • the first policy selection information is the value of the EtherType field in the header of the Ethernet data packet, that is, the protocol type of the data carried by the Ethernet data packet.
  • the preset field may also be a User Priority field, such as a User Priority field in an Ethernet frame frame format defined by the 802.1Q protocol or other protocols.
  • FIG. 5 is a schematic diagram of the frame format of the Ethernet frame defined by the 802.1Q protocol.
  • the frame format includes a 4-byte 802.1Q virtual local area network (virtual local (area network, VLAN) tag tag field, which also includes a 3-bit subfield, that is, the User Priority field.
  • the User Priority field can be used as the class of service (CoS) of the Ethernet data packet to distinguish the priority of the Ethernet data packet.
  • the first policy selection information is the value of the User Priority field, that is, the priority of the Ethernet data packet.
  • the value of the User Priority field may be a priority code point (PCP), a drop eligible indicator (DEI), or a PCP and DEI, where PCP is used to identify the priority level of Ethernet data packets or Ethernet frames, and DEI is used to identify the drop priority level of Ethernet data packets or Ethernet frames.
  • PCP priority code point
  • DEI drop eligible indicator
  • the session management function network element obtains the first policy selection information, and may receive the 5QI sent by the user plane function network element.
  • the 5QI can be determined by the user plane function network element according to the received Ethernet data packet and the filtering policy matching the Ethernet data packet, and is used to indicate the quality of service (QoS) applied when forwarding the data flow, such as Packet loss rate, delay, etc.
  • QoS quality of service
  • a packet filtering policy may be stored in a user plane function network element.
  • the packet filtering policy includes a series of filtering policies, and each filtering policy may correspond to a 5QI.
  • the value of 5QI corresponding to each filtering strategy may be the same or different, and this application does not specifically limit this. That is, one or more filtering policies in the packet filtering policy may correspond to the same 5QI value.
  • the user plane function network element After the user plane function network element receives the Ethernet data packet to be sent to the terminal device, the user plane function network element can match the filtering policy according to the information such as the MAC address and the VLAN identifier in the packet header of the Ethernet data packet. The best filtering policy is matched with the Ethernet data packet, and a PDU session for transmitting the Ethernet data packet is determined, and then the Ethernet data packet can be sent to the terminal device through the PDU session. At the same time, the user plane function network element can also determine the 5QI corresponding to the filtering policy that best matches the Ethernet packet, and determine it as the 5QI corresponding to the Ethernet packet.
  • the terminal device described in the embodiment of the present application is a terminal device that has established an Ethernet type PDU session. Therefore, during the establishment of the previous Ethernet type PDU session, the session management function network element may provide the user plane function.
  • the network element sends a packet filtering policy, and the user plane function network element receives the packet filtering policy and stores it.
  • the first policy selection information may be obtained according to the first policy selection information, and each of the obtained policy selection information and paging policy information is obtained. The corresponding relationship between them determines the first paging policy information corresponding to the Ethernet data packet, and sends the first paging policy information to the access management function network element.
  • the paging policy information may be identification information for identifying a paging policy, or may be specific paging policy, which is not specifically limited in this application. It should be understood that when the paging policy information is a paging policy identifier, different paging policies have corresponding identification information and are different from each other. For simplicity of description, the following uses paging policy information as identification information that represents the paging policy as an example for description.
  • the corresponding relationship obtained in the session management function network element may be each value of the protocol type (that is, various possible values of the EtherType field). ) And paging policy information, as shown in Table 1 below.
  • each protocol type can correspond to a paging policy information, so that when paging a terminal device, a corresponding paging policy can be executed according to a protocol type in which an Ethernet data packet carries data.
  • protocol types may correspond to different paging policy information, and there may be a case where one or more protocol types correspond to the same paging policy information, which is not limited in this application.
  • the corresponding relationship obtained by the session management function network element may be each value of the priority (that is, various possible values of the User Priority field) and The corresponding relationship between the paging policy information is shown in Table 2 below.
  • each priority can correspond to a paging policy information, so that when paging a terminal device, a corresponding paging policy can be executed according to the priority of an Ethernet data packet.
  • priorities may correspond to different paging policy information, and there may be a case where one or more priorities correspond to the same paging policy information, which is not limited in this application.
  • the corresponding relationship stored in the session management function network element may be the corresponding relationship between various possible values of 5QI and the paging policy identifier, as shown in Table 3 below.
  • each value of 5QI can correspond to a paging policy information, so that when paging a terminal device, a corresponding paging policy can be executed according to the 5QI corresponding to the Ethernet data packet.
  • 5QI may correspond to different paging policy information, and there may be a case where one or more values of 5QI correspond to the same paging policy information, which is not limited in this application.
  • the session management function network element may send the first paging policy information of the Ethernet data packet to the access management function network element in various ways. For example, after receiving the downlink data notification message sent by the user plane function network element, the session management function network element sends a request for calling the terminal device's reachability service to the access management function network element. Therefore, the session management function network element may carry the first paging policy information in the reachability service request, so as to achieve the purpose of sending the first paging policy information to the access management function network element.
  • the paging policy corresponding to each paging policy information is stored in the access management function network element, and therefore, the access management function network element can receive the first paging sent by the session management function network element. Policy information, and using the paging policy indicated by the first paging policy information to page the terminal device. After that, the access management function network element sends a paging response to the session management function network element to indicate whether the paging succeeds or fails.
  • the user plane function network element may send the Ethernet data packet received from the data network to the terminal device; If the paging response indicates that the terminal device fails to page, the user plane function network element may initiate a data processing strategy, such as temporarily buffering or discarding the Ethernet data packet.
  • an Ethernet data packet is sent to a terminal device through the control of the core network
  • the user plane function network element has sent the Ethernet data packet to the session management function network element, so The Ethernet data packet can be sent to the terminal device by the session management function network element.
  • the paging response indicates that the terminal device fails to page, the corresponding data processing strategy may also be initiated by the session management function network element, and the Ethernet data packet may be temporarily buffered or discarded.
  • the process of performing paging according to the determined paging strategy by the access management function network element may specifically include: the access management function network element sends each RAN (such as each The base station) sends a paging command, and each RAN pages the device.
  • the base station can send a paging request to the terminal device.
  • the terminal device executes the service request process triggered by the terminal device, including the terminal device sends service request signaling to the AMF through the base station, and the AMF performs security authentication on the terminal device through AUSF.
  • SMF recovers user plane resources on the network side for non-IP type PDU sessions, and the network side updates the base station side tunnel address and forwarding tunnel.
  • the terminal device can enter the connected state and restore the user plane resources of the Ethernet type PDU session to transmit the downlink data of the data network.
  • the terminal device enters the connected state and successfully recovers the user plane resources of the Ethernet type PDU session; the UPF sends the downlink data issued by the data network to the terminal device.
  • the user plane function network element may determine whether to send an Ethernet data packet of the terminal device through the user plane of the core network or an Ethernet data packet of the terminal device through the control plane of the core network according to the type of the terminal device. .
  • the amount of data that needs to be transmitted for each communication is usually small. If the core network sends data through the user plane, each time data is transmitted, an Ethernet-type PDU session needs to be established for the terminal device. The analysis shows that considering the system overhead required to establish an Ethernet-type PDU session and the small amount of data to be transmitted through the established PDU session, sending data to the IOT-type terminal device by the user will significantly waste system resources.
  • the data of this type of IOT terminal device can be sent through the control plane by sending control signaling, without establishing an Ethernet type PDU session.
  • the user plane function network element receives the Ethernet data packet sent by the data network, it no longer sends a downlink data notification message to the session management function network element, but directly forwards the received Ethernet data packet to the session management function network.
  • the session management function network element sends the Ethernet data packet to the terminal device.
  • UPF user plane function network element
  • SMF session management function network element
  • AMF access management function network element
  • the first policy selection information is a protocol type of an Ethernet data packet, and is sent through a user plane.
  • the first embodiment of the present application is applicable to a frame format of an Ethernet frame defined by the Ethernet II protocol and the 802.3 protocol. That is, the Ethernet data packet described in the first embodiment of the present application may have a frame format as shown in FIG. 3 or FIG. 4.
  • FIG. 6 is a schematic flowchart of a communication method provided in Embodiment 1 of the present invention. As shown in FIG. 6, the method includes:
  • Step S601 The SMF configures a paging policy generation rule, and the paging policy generation rule is specifically a correspondence relationship between each protocol type and paging policy information.
  • Step S602 The UPF receives the Ethernet data packet sent by the data network.
  • the Ethernet data packet is to be sent to the terminal device by the data network, so it may also be called a downlink data packet.
  • Step S603 The UPF identifies the EtherType field in the header of the Ethernet data packet, and obtains the first protocol type of the data carried by the Ethernet data packet.
  • the first protocol type is the first policy selection information of the Ethernet data packet.
  • the protocol type is the value of the EtherType field in the header of the Ethernet packet.
  • Step S604 The UPF sends a downlink data notification to the SMF, where the downlink data notification includes a first protocol type.
  • Step S605 The SMF receives the downlink data notification, and determines the first paging policy information corresponding to the first protocol type according to the first protocol type included in the downlink data notification and a pre-configured paging policy generation rule.
  • Step S606 The SMF sends a request message to the AMF, where the request message includes the determined first paging policy information.
  • Step S607 the AMF receives the request message, and uses the paging policy indicated by the first paging policy information to page the terminal device.
  • the request message may specifically be a reachability service request for invoking the terminal device.
  • the request message in step S606 may further include a session identifier of an Ethernet-type PDU session for AMF. After paging the terminal device, the Ethernet data packet is sent to the terminal device using the PDU session corresponding to the session identifier.
  • the UPF may receive an Ethernet data packet to be sent to a terminal device, obtain a first protocol type of data carried by the Ethernet data packet, and use the first protocol type as first policy selection information. Sent to SMF. Subsequently, the SMF may determine the corresponding first paging policy information according to the first protocol type and a pre-configured paging policy generation rule, and then send the first paging policy information to the AMF. In this way, the AMF can page the terminal device using the paging policy indicated by the first paging policy information, so that when the terminal device is paged, different paging policies can be executed according to different protocol types.
  • Embodiment 2 The first policy selection information is the protocol type of the Ethernet data packet, and is sent through the control plane.
  • the second embodiment of the present application is applicable to a frame format of an Ethernet frame defined by the Ethernet II protocol and the 802.3 protocol. That is, the Ethernet data packet described in the second embodiment of the present application may have a frame format as shown in FIG. 3 or FIG. 4.
  • FIG. 7 is a schematic flowchart of a communication method provided in Embodiment 2 of the present invention. As shown in FIG. 8, the method includes:
  • Step S701 The SMF configures a paging policy generation rule, and the paging policy generation rule is specifically a correspondence relationship between each protocol type and a paging policy identifier.
  • Step S702 The UPF receives the Ethernet data packet sent by the data network, and sends the Ethernet data packet to the SMF.
  • Step S703 The SMF receives the Ethernet data packet sent by the UPF, identifies the EtherType field in the header of the Ethernet data packet, and obtains the first protocol type of the data carried by the Ethernet data packet.
  • the protocol type is the first policy of the Ethernet data packet Selection information.
  • the first protocol type may be the value of the EtherType field in the packet header.
  • Step S704 The SMF determines the first paging policy information corresponding to the first protocol type according to the first protocol type of the Ethernet data packet and a pre-configured paging policy generation rule.
  • Step S705 The SMF sends a request message to the AMF, where the request message includes the determined first paging policy information.
  • Step S706 the AMF receives the request message, and uses the paging policy indicated by the first paging policy information in the request message to page the terminal device.
  • the request message may specifically be a reachability service request for invoking the terminal device.
  • the UPF after receiving the Ethernet data packet to be sent to the terminal device, the UPF can send the Ethernet data packet to the SMF, and the SMF obtains the first protocol type of the data carried by the Ethernet packet. And determine the corresponding first paging policy information according to the first protocol type and the pre-configured paging policy generation rule, and then send the first paging policy information to the AMF. In this way, the AMF can page the terminal device using the paging policy indicated by the first paging policy information, so that when the terminal device is paged, different paging policies can be executed according to different protocol types.
  • Embodiment 3 The first policy selection information is the priority of the Ethernet data packet, which is sent through the user plane.
  • the third embodiment of the present application is applicable to a frame format of an Ethernet frame defined by the 802.1Q protocol, that is, the Ethernet data packet described in the third embodiment of the present application may have a frame format as shown in FIG. 5.
  • FIG. 8 is a schematic flowchart of a communication method provided in Embodiment 3 of the present invention. As shown in FIG. 8, the method includes:
  • Step S801 The SMF configures a paging policy generation rule, and the paging policy generation rule is specifically a correspondence between each value of the priority of the Ethernet data packet and the paging policy information.
  • Step S802 The UPF receives the Ethernet data packet sent by the data network.
  • the Ethernet data packet is to be sent to the terminal device by the data network, so it may also be called a downlink data packet.
  • Step S803 The UPF identifies the User Priority field in the header of the Ethernet packet, and obtains the first priority of the Ethernet packet, where the first priority is the first policy selection information of the Ethernet packet.
  • the first priority is the value of the User Priority field in the header of the Ethernet data packet.
  • Step S804 The UPF sends a downlink data notification to the SMF, where the downlink data notification includes the first priority of the Ethernet data packet.
  • Step S805 The SMF receives a downlink data notification, and determines a first page corresponding to the first priority according to a first priority of an Ethernet data packet included in the downlink data notification and a pre-configured paging policy generation rule. Strategy information.
  • Step S806 The SMF sends a request message to the AMF, and the request message includes the determined first paging policy information.
  • Step S807 the AMF receives the request message, and uses the first paging policy information in the request message to page the terminal device with the indicated paging policy.
  • the request message may specifically be a reachability service request for invoking the terminal device.
  • the request message in step S806 may further include a session identifier of an Ethernet type PDU session for AMF. After paging the terminal device, the Ethernet data packet is sent to the terminal device using the PDU session corresponding to the session identifier.
  • the UPF may receive the Ethernet data packet to be sent to the terminal device, obtain the first priority of the Ethernet data packet, and send the first priority to the SMF. Subsequently, the SMF may determine the corresponding first paging policy information according to the first priority and the pre-configured paging policy generation rule, and then send the first paging policy information to the AMF. In this way, the AMF can page the terminal device using the paging policy indicated by the first paging policy information, so that when the terminal device is paged, different paging policies can be executed according to different Ethernet packet priorities.
  • Embodiment 4 The first policy selection information is the priority of the Ethernet data packet, and is sent through the control plane.
  • Embodiment 3 of the present application is applicable to a frame format of an Ethernet frame defined by the 802.1Q protocol, that is, the Ethernet data packet described in Embodiment 4 of the present application may have a frame format as shown in FIG. 5.
  • FIG. 9 is a schematic flowchart of a communication method provided in Embodiment 4 of the present invention. As shown in FIG. 9, the method includes:
  • Step S901 The SMF configures a paging policy generation rule, and the paging policy generation rule is specifically a correspondence between each value of the priority of the Ethernet data packet and the paging policy identifier.
  • Step S902 The UPF receives the Ethernet data packet sent by the data network, and sends the Ethernet data packet to the SMF.
  • Step S903 The SMF receives the Ethernet data packet sent by the UPF, identifies the User Priority field in the header of the Ethernet data packet, and obtains the first priority of the Ethernet data packet.
  • the first priority is the first policy of the Ethernet data packet. Select information.
  • the first priority may be a value of a User Priority field in the packet header.
  • Step S904 The SMF determines the first paging policy information corresponding to the first priority according to the first priority of the Ethernet data packet and a pre-configured paging policy generation rule.
  • Step S905 The SMF sends a request message to the AMF, where the request message includes the determined first paging policy information.
  • Step S906 the AMF receives the request message, and uses the paging policy indicated by the first paging policy information in the request message to page the terminal device.
  • the request message may specifically be a reachability service request for invoking the terminal device.
  • the UPF may send the Ethernet data packet to the SMF, and the SMF obtains the first priority of the Ethernet data packet, and Determine the corresponding first paging policy information according to the first priority and the pre-configured paging policy generation rule, and then send the first paging policy information to the AMF.
  • the AMF can page the terminal device using the paging policy corresponding to the first paging policy information, so that when paging the terminal device, different paging policies can be executed according to different Ethernet packet priorities.
  • the first policy selection information is the 5QI corresponding to the Ethernet data packet, which is sent through the user plane.
  • the fifth embodiment of the present application is applicable to the frame format of any Ethernet frame defined by the Ethernet protocol, including but not limited to the aforementioned Ethernet II protocol, 802.3 protocol, and 802.1Q protocol, that is, the Ethernet data packet described in the fifth embodiment of the present application. It may have a frame format as shown in any of the drawings of FIG. 3, FIG. 4, or FIG.
  • FIG. 10 is a schematic flowchart of a communication method provided in Embodiment 5 of the present invention. As shown in FIG. 10, the method includes:
  • Step S1001 The SMF configures a paging policy generation rule, and the paging policy generation rule is specifically a correspondence between each value of 5QI and the paging policy information.
  • Step S1002 The UPF receives the Ethernet data packet sent by the data network.
  • the Ethernet data packet is to be sent to the terminal device by the data network, so it may also be called a downlink data packet.
  • Step S1003 The UPF determines the 5QI corresponding to the Ethernet data packet according to the packet filtering policy sent by the SMF during the establishment of the Ethernet type PDU session.
  • the 5QI can reflect the QoS applied when forwarding the Ethernet packet.
  • Step S1004 The UPF sends a downlink data notification to the SMF, and the downlink data notification includes the 5QI corresponding to the Ethernet data packet.
  • Step S1005 The SMF receives the downlink data notification, and determines the first paging policy information corresponding to the 5QI value according to the 5QI of the Ethernet data packet included in the downlink data notification and a pre-configured paging policy generation rule.
  • Step S1006 The SMF sends a request message to the AMF, and the request message includes the determined first paging policy information.
  • Step S1007 the AMF receives the request message, and uses the paging policy indicated by the first paging policy information in the request message to page the terminal device.
  • the request message may specifically be a reachability service request for invoking the terminal device.
  • the request message in step S1006 may further include a session identifier of an Ethernet type PDU session for AMF. After paging the terminal device, the Ethernet data packet is sent to the terminal device using the PDU session corresponding to the session identifier.
  • the UPF may receive an Ethernet data packet to be sent to the terminal device, determine a 5QI corresponding to the Ethernet data packet according to a packet filtering policy sent by the SMF, and send the 5QI to the SMF. Subsequently, the SMF may determine the first paging policy information corresponding to the 5QI according to the 5QI and a pre-configured paging policy generation rule, and then send the first paging policy information to the AMF. In this way, the AMF can page the terminal device using the paging policy indicated by the first paging policy information, so that when the terminal device is paged, different paging policies can be performed according to different 5QIs.
  • an embodiment of the present invention further provides a communication device.
  • a schematic structural diagram of a communication device according to an embodiment of the present application may be provided.
  • the communication device may be configured to perform actions on the network element side of the session management function in the foregoing method embodiment.
  • the communication device includes a transceiver unit 1101 And processing unit 1102.
  • the transceiver unit 1101 and the processing unit 1102 are respectively configured to perform the following steps:
  • the processing unit 1102 is configured to obtain a correspondence between policy selection information and paging policy information; obtain first policy selection information of an Ethernet packet to be sent to a terminal device; and according to the first policy selection information and all The correspondence relationship is used to determine first paging policy information corresponding to the Ethernet data packet; the first paging policy information is used to indicate a policy used by the access management function network element when paging the terminal device.
  • the transceiver unit 1101 is configured to send the first paging policy information to an access management function network element.
  • processing unit 1102 is specifically configured to:
  • processing unit 1102 is further specifically configured to:
  • the first policy selection information is a preset field in a header of the Ethernet data packet.
  • the preset field is an Ethernet type Ethertype field in a header of the Ethernet data packet, and the Ethertype field is used to indicate a protocol type of data carried by the Ethernet data packet;
  • the preset field is a user priority UserPriority field in a header of the Ethernet data packet, and the UserPriority field is used to indicate the priority of the Ethernet data packet.
  • the first policy selection information is a fifth-generation mobile communication technology service quality indication 5QI.
  • An embodiment of the present invention also provides another communication device.
  • FIG. 12 a schematic structural diagram of a communication device according to an embodiment of the present application is provided.
  • the communication device may be configured to perform actions on a user plane function network element side in the foregoing method embodiment.
  • the communication device includes a transceiver unit 1201. And processing unit 1202.
  • the transceiver unit 1201 and the processing unit 1202 are respectively configured to perform the following steps:
  • the transceiver unit 1201 is configured to receive an Ethernet data packet to be sent to a terminal device
  • the processing unit 1202 is configured to obtain first policy selection information of the Ethernet data packet; the first policy selection information is used by the session management function network element to determine a first paging policy corresponding to the Ethernet data packet Information, the first paging policy information is used to indicate a policy used by an access management function network element to page the terminal device;
  • the transceiver unit is further configured to send the first policy selection information to a session management function network element.
  • the first policy selection information is a preset field in a header of the Ethernet data packet
  • the processing unit 1202 is specifically configured to:
  • the preset field is an Ethernet type Ethertype field in a header of the Ethernet data packet, and the Ethertype field is used to indicate a protocol type of data carried by the Ethernet data packet;
  • the processing unit 1202 is specifically configured to:
  • the preset field is a User Priority field in a header of the Ethernet data packet, and the User Priority field is used to indicate the priority of the Ethernet data packet;
  • the processing unit 1202 is specifically configured to:
  • the first policy selection information is a fifth-generation mobile communication technology service quality indicator 5QI;
  • the processing unit 1202 is specifically configured to:
  • the 5QI is determined according to a filtering policy matching the Ethernet data packet.
  • the device 1300 includes: a processor 1301, a transceiver 1302, a memory 1303, and a communication interface 1304; wherein the processor 1301, the transceiver 1302, the memory 1303, and the communication interface 1304 are connected to each other through a bus 1305.
  • the processor 1301 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • the processor 1301 may further include a hardware chip.
  • the above hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the memory 1303 may include volatile memory (for example, random-access memory (RAM); the memory may also include non-volatile memory (for example, flash memory) ), A hard disk (HDD) or a solid-state drive (SSD); the memory 1403 may also include a combination of the above types of memory.
  • volatile memory for example, random-access memory (RAM)
  • non-volatile memory for example, flash memory
  • HDD hard disk
  • SSD solid-state drive
  • the memory 1403 may also include a combination of the above types of memory.
  • the communication interface 1304 may be a wired communication access port, a wireless communication interface, or a combination thereof.
  • the wired communication interface may be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • the wireless communication interface may be a WLAN interface.
  • the bus 1305 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only a two-way arrow is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.
  • the memory 1303 may be used to store program instructions.
  • the processor 1301 calls the program instructions stored in the memory 1303, and may execute one or more steps in the embodiment shown in the foregoing solution, or an optional implementation manner thereof, so that the communication
  • the device implements the functions of the session management function network element in the above method.
  • the processor 1301 is configured to obtain a correspondence between the policy selection information and the paging policy information, obtain first policy selection information of an Ethernet data packet to be sent to the terminal device, and according to the first policy selection information and the The corresponding relationship determines first paging policy information corresponding to the Ethernet data packet.
  • the transceiver 1302 is configured to send the first paging policy information to an access management function network element.
  • FIG. 14 a schematic structural diagram of a communication device according to an embodiment of the present application is provided.
  • the communication device may perform actions on the user plane function network element side in the foregoing method embodiments.
  • the device 1400 includes: a processor 1401, a transceiver 1402, a memory 1403, and a communication interface 1404; wherein the processor 1401, the transceiver 1402, the memory 1403, and the communication interface 1404 are connected to each other through a bus 1405.
  • the processor 1401 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • the processor 1401 may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the memory 1403 may include volatile memory (such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory (flash memory) ), A hard disk (HDD) or a solid-state drive (SSD); the memory 1403 may also include a combination of the above types of memory.
  • volatile memory such as random-access memory (RAM)
  • non-volatile memory such as flash memory (flash memory)
  • flash memory flash memory
  • HDD hard disk
  • SSD solid-state drive
  • the memory 1403 may also include a combination of the above types of memory.
  • the communication interface 1404 may be a wired communication access port, a wireless communication interface, or a combination thereof.
  • the wired communication interface may be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • the wireless communication interface may be a WLAN interface.
  • the bus 1405 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only a two-way arrow is used in FIG. 14, but it does not mean that there is only one bus or one type of bus.
  • the memory 1403 may be used to store program instructions.
  • the processor 1401 calls the program instructions stored in the memory 1403, and may execute one or more steps in the embodiment shown in the foregoing solution, or an optional implementation manner thereof, so that the communication
  • the device implements the functions of the session management function network element in the above method.
  • the transceiver 1402 is configured to receive an Ethernet data packet to be sent to a terminal device, and send the first policy selection information to a session management function network element.
  • the processor 1401 is configured to obtain first policy selection information of the Ethernet data packet.
  • An embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is caused to execute any one of the foregoing first aspects.
  • An embodiment of the present application provides a computer-readable storage medium, where the computer-readable instructions are stored in the computer storage medium, and when the computer reads and executes the computer-readable instructions, the computer is caused to execute any one of the foregoing second aspects.
  • An embodiment of the present application provides a computer program product.
  • the computer reads and executes the computer program product, the computer is caused to execute the method in any one of the possible designs in the first aspect.
  • An embodiment of the present application provides a computer program product.
  • the computer reads and executes the computer program product, the computer is caused to execute the method in any one of the possible designs in the second aspect.
  • An embodiment of the present application provides a chip, which is connected to a memory, and is configured to read and execute a software program stored in the memory to implement the method in any one of the possible designs of the first aspect.
  • An embodiment of the present application provides a chip that is connected to a memory and is used to read and execute a software program stored in the memory to implement the method in any one of the possible designs in the second aspect.
  • An embodiment of the present application provides a communication system.
  • the system includes a session management network element and a user management network element.
  • the session management network element may be used to implement the first aspect or any possible design solution of the first aspect.
  • the method described above, or the method performed by the session management function network element in the solution provided in the embodiment of the present application; the user management network element may be used to execute the method described in the second aspect or any possible design of the second aspect Or the method performed by the network element of the user plane management function in the solution provided in the embodiment of the present application.
  • the system may further include other devices that interact with the session management network element and / or the user management network element in the first and second aspects, such as a mobility management network element, and the mobility
  • the management network element may be used to execute the method for performing the access and mobility management function network element in the solution provided in the embodiment of the present application.
  • An embodiment of the present application provides a communication system, and the system includes a session management network element, and the session management network element may be configured to execute the method described in the first aspect or any possible design of the first aspect, or the present application A method for performing a session management function network element in the solution provided by the embodiment.
  • the system may further include a user management network element, which may be used to execute the method described in the second aspect or any one of the possible designs of the second aspect, or the present application A method for performing a user plane management function network element in the solution provided by the embodiment.
  • the system may further include other devices that interact with the session management network element and / or the user management network element in the first and second aspects, such as a mobility management network element, and the mobility
  • the management network element may be used to execute the method for performing the access and mobility management function network element in the solution provided in the embodiment of the present application.
  • the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present invention are described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions.
  • These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that the instructions generated by the processor of the computer or other programmable data processing device are used to generate instructions Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

Abstract

本发明公开了一种通信方法及装置，包括会话管理网元获取策略选择信息与寻呼策略信息之间的对应关系，获取以太数据包的第一策略选择信息，根据该第一策略选择信息和会话管理网元获取的策略选择信息与寻呼策略信息之间的对应关系，确定该以太数据包对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给移动性管理网元。如此，移动性管理网元可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的第一策略选择信息，而执行不同的寻呼策略。

Description

一种通信方法及装置
本申请要求在2018年7月28日提交中国专利局、申请号为201810850393.3、发明名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种通信方法及装置。
背景技术
在移动网络中注册的终端设备有三种状态：空闲态、连接态和待激活态。处于空闲态的终端设备，网络侧可以知道终端设备所处的注册区域，即跟踪区列表(tracking area list，TAL)，如果网络侧需要向终端设备发送数据，网络侧需要向终端设备所处的TAL中的所有基站发送寻呼请求，由基站寻呼终端设备，当寻呼到终端设备后，终端设备发送服务注册请求，进入连接态。
在第五代移动通信技术(5th-generation，5G)标准中定义了网络侧可向终端设备发送以太网数据包。若网络侧向某一终端设备发送以太网数据包时，终端设备正处于空闲态，则会触发网络侧寻呼。然而，由于不同的终端设备或不同业务类型的以太网数据包可能需要适用不同的寻呼策略，当网络侧需要下发以太网数据包时，应如何决策使用的寻呼策略，目前尚没有相关的技术方案。
发明内容
本申请实施例提供一种通信方法及装置，用以确定下发以太数据包时的寻呼策略。
第一方面，本申请实施例提供一种通信方法，该方法包括：
会话管理网元获取策略选择信息与寻呼策略信息之间的对应关系；所述会话管理网元获取待发送给终端设备的以太数据包的第一策略选择信息；所述会话管理网元根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息，并将所述第一寻呼策略信息发送给移动性管理网元；所述第一寻呼策略信息用于指示所述移动性管理网元寻呼所述终端设备时使用的策略。
由此可见，本申请实施例中，会话管理网元可获取以太数据包的第一策略选择信息，并根据该第一策略选择信息和会话管理网元获取的策略选择信息与寻呼策略信息之间的对应关系，确定该以太数据包对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给移动性管理网元。如此，移动性管理网元可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的第一策略选择信息，而执行不同的寻呼策略。
本申请实施例中，会话管理网元获取待发送给终端设备的以太数据包的第一策略选择信息可具有多种可能的实现方式，其中，一种可能的实现方式为，所述会话管理网元接收用户管理网元发送的所述第一策略选择信息；另一种可能的实现方式为，所述会话管理网元接收所述用户管理网元发送的所述以太数据包，并根据所述以太数据包确定所述第一策 略选择信息。
在一种可能的设计中，所述第一策略选择信息可以为以太数据包的包头中的预设字段，例如，以太网类型Ethertype字段或用户优先级User Priority字段。如此，用户管理网元既可以接收用户管理网元根据该预设字段确定的第一策略选择信息，也可在接收到用户管理网元发送的以太数据包后，通过识别该预设字段确定第一策略选择信息，从而增加获取第一策略选择信息的灵活性。
进一步地，在一种可能的实现方式中，该预设字段可为以太数据包的包头中的Ethertype字段，该Ethertype字段用于指示以太数据包所承载数据的协议类型，如此，会话管理网元可以根据以太数据包承载数据的协议类型，确定第一寻呼策略信息，并发送给移动性管理网元，从而使得移动性管理网元可使用该以太数据包承载数据的协议类型所对应的寻呼策略寻呼终端设备。
在另一种可能的实现方式中，该预设字段可为以太数据包的包头中的User Priority字段，该User Priority字段用于指示以太数据包的优先级，如此，会话管理网元可根据该以太数据包的优先级，确定第一寻呼策略信息，并发送给移动性管理网元，从而使得移动性管理网元可使用以太数据包的优先级所对应的寻呼策略寻呼终端设备。
在一种可能的设计中，第一策略选择信息还可以为第五代移动通信技术服务质量指示5QI，如此，会话管理网元可根据以太数据包对应的5QI，确定第一寻呼策略信息，并发送给移动性管理网元，相应地，移动性管理网元可采用以太数据包的5QI对应的寻呼策略寻呼终端设备。由于5QI的取值可反映转发数据包时应用的服务质量，从而在寻呼终端设备时能够根据不同的5QI，而执行不同的寻呼策略。
第二方面，本申请实施例提供另一种通信方法，该方法包括：
用户管理网元接收待发送给终端设备的以太数据包；所述用户管理网元获取所述以太数据包的第一策略选择信息，并将所述第一策略选择信息发送给会话管理网元；所述第一策略选择信息用于所述会话管理网元确定所述以太数据包对应的第一寻呼策略信息，所述第一寻呼策略信息用于指示移动性管理网元寻呼所述终端设备时使用的策略。
由此可见，本申请实施例中，用户管理网元可获取接收待发送给终端设备的以太数据包，获取该以太数据包的第一策略选择信息，并发送给会话管理网元。如此，会话管理网元接收该第一策略选择信息后，可根据该第一策略选择信息，确定对应的第一寻呼策略信息，进而移动性管理网元可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而实现寻呼终端设备时能够根据不同的第一策略选择信息，而执行不同的寻呼策略。在一种可能的设计中，所述第一策略选择信息可以为以太数据包的包头中的预设字段，如以太网类型Ethertype字段或用户优先级User Priority字段。如此，所述用户管理网元获取所述以太数据包的第一策略选择信息可以为：所述用户管理网元根据所述以太数据包的包头中的所述预设字段，确定所述第一策略选择信息。
进一步地，在一种可能的实现方式中，所述预设字段可以为所述以太数据包的包头中的Ethertype字段，该Ethertype字段用于指示以太数据包所承载数据的协议类型。如此，所述用户管理网元可根据所述以太数据包的包头中的所述Ethertype字段，确定所述第一策略选择信息，并将该第一策略选择信息发送给会话管理网元，进而使得移动性管理网元可使用该以太数据包承载数据的协议类型所对应的寻呼策略寻呼终端设备。
在另一种可能的实现方式中，所述预设字段可以为所述以太数据包的包头中的User  Priority字段，所述User Priority字段用于指示所述以太数据包的优先级。如此，所述用户管理网元可根据所述以太数据包的包头中的所述User Priority字段，确定所述第一策略选择信息，并将该第一策略选择信息发送给会话管理网元，进而使得移动性管理网元可使用该以太数据包的优先级所对应的寻呼策略寻呼终端设备。
在一种可能的设计中，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI。如此，所述用户管理网元根据与所述以太数据包相匹配的过滤策略，确定所述5QI，并发送给会话管理网元，进而使得移动性管理网元可使用该以太数据包的5QI所对应的寻呼策略寻呼终端设备。由于5QI的取值可反映转发数据包时应用的服务质量，从而在寻呼终端设备时能够根据不同的5QI，而执行不同的寻呼策略。
第三方面，本申请实施例提供另一种通信装置，该通信装置具有实现上述第一方面或第一方面的任一种可能的设计中会话管理网元的功能，该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，所述通信装置的结构中包括处理单元和收发单元，所述处理单元被配置为支持该通信装置执行上述第一方面或第一方面的任一种设计中相应的功能。所述收发单元用于支持该通信装置与其他设备之间的通信。所述通信装置还可以包括存储单元，所述存储单元与处理单元耦合，其保存有通信装置必要的程序指令和数据。作为一种示例，处理单元可以为处理器，通信单元可以为收发器，存储单元可以为存储器。
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第一方面中任一种可能的设计中的方法。
第五方面，本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第一方面中任一种可能的设计中的方法。
第六方面，本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面中任一种可能的设计中的方法。
第七方面，本申请实施例提供另一种通信装置，该通信装置具有实现上述第二方面或第二方面的任一种可能的设计中用户管理网元的功能，该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现，所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的设计中，所述通信装置的结构中包括处理单元和收发单元，所述处理单元被配置为支持该通信装置执行上述第二方面或第二方面的任一种设计中相应的功能。所述收发单元用于支持该通信装置与其他设备之间的通信。所述通信装置还可以包括存储单元，所述存储单元与处理单元耦合，其保存有通信装置必要的程序指令和数据。作为一种示例，处理单元可以为处理器，通信单元可以为收发器，存储单元可以为存储器。
第八方面，本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第二方面中任一种可能的设计中的方法。
第九方面，本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第二方面中任一种可能的设计中的方法。
第十方面，本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第二方面中任一种可能的设计中的方法。
第十一方面，本申请实施例提供一种通信系统，该系统包括会话管理网元和用户管理 网元，其中，该会话管理网元可用于执行上述第一方面或第一方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中会话管理网元执行的方法；该用户管理网元可用于执行上述第二方面或第二方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中用户管理网元执行的方法。
在一种可能的设计中，该系统还可以包括上述第一方面、第二方面中与会话管理网元和/或用户管理网元进行交互的其他设备，如移动性管理网元，该移动性管理网元可用于执行本申请实施例提供的方案中移动性管理网元执行的方法。
第十二方面，本申请实施例提供一种通信系统，该系统包括会话管理网元，该会话管理网元可用于执行上述第一方面或第一方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中会话管理网元执行的方法。
在一种可能的设计中，该系统还可以包括用户管理网元，该用户管理网元可用于执行上述第二方面或第二方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中用户管理网元执行的方法。
在一种可能的设计中，该系统还可以包括上述第一方面、第二方面中与会话管理网元和/或用户管理网元进行交互的其他设备，如移动性管理网元，该移动性管理网元可用于执行本申请实施例提供的方案中移动性管理网元执行的方法。
附图说明
图1为本申请实施例适用的一种网络架构示意图；
图2为本申请实施例提供的一种通信方法所对应的流程示意图；
图3为Ethernet II协议中定义的以太帧的帧格式的示意图；
图4为802.3协议中定义的以太帧的帧格式的示意图；
图5为802.1Q协议中定义的以太帧的帧格式的示意图；
图6为本申请实施例一提供的一种通信方法所对应的流程示意图；
图7为本申请实施例二提供的一种通信方法所对应的流程示意图；
图8为本申请实施例三提供的一种通信方法所对应的流程示意图；
图9为本申请实施例四提供的一种通信方法所对应的流程示意图；
图10为本申请实施例五提供的一种通信方法所对应的流程示意图；
图11为本申请实施例提供的一种通信设备的结构示意图；
图12为本申请实施例提供的另一种通信设备的结构示意图；
图13为本申请实施例提供的一种通信设备的结构示意图；
图14为本申请实施例提供的另一种通信设备的结构示意图。
具体实施方式
下面结合说明书附图对本发明实施例进行具体描述。
本申请实施例提供的通信方法可适用于多种系统架构。图1为本申请实施例适用的一种网络架构示意图。如图1所示，该网络架构包括终端设备、接入网(access network，AN)、核心网(core network，AN)和数据网络(data network，DN)。
其中，核心网具体包括认证服务器功能(authentication server function，AUSF)、统一 数据管理(unified data management，UDM)、接入和移动性管理功能(core access and mobility management function，AMF)、会话管理功能(session management function，SMF)、策略控制功能(policy control function，PCF)、应用功能(application function，AF)、用户面功能(user plane function，UPF)等网元。
终端设备与AMF之间的接口为N1接口，AN与AMF之间的接口为N2接口，AN与UPF之间的接口为N3接口，UPF与SMF之间的接口为N4接口，PCF与AF之间的接口为N5接口，UPF与DN之间的接口为N6接口，SMF与PCF之间的接口为N7接口，AMF与UDM之间的接口为N8接口，UPF与UPF之间的接口为N9接口，UDM与SMF之间的接口为N10接口，SMF与AMF之间的接口为N11接口，AMF与AUSF之间的接口为N12接口，AUSF与UDM之间的接口为N13接口，AMF与AMF之间的接口为N14接口，AMF与PCF之间的接口为N15接口。
具体的，终端设备是移动用户与网络交互的入口，能够提供基本的计算能力、存储能力，向用户显示业务窗口，接受用户的操作输入。终端设备可与AN建立信号连接、数据连接，从而传输控制信号和业务数据到移动网络。
该终端可以为向用户提供语音和/或数据连通性的设备(device)，包括有线终端和无线终端。无线终端可以是具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备，经无线接入网与一个或多个核心网进行通信的移动终端。例如，无线终端可以为移动电话、计算机、平板电脑、个人数码助理(personal digital assistant，PDA)、移动互联网设备(mobile Internet device，MID)、可穿戴设备和电子书阅读器(e-book reader)等。又如，无线终端也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动设备。再如，无线终端可以为移动站(mobile station，MS)、接入点(access point，AP)、或用户设备(user equipment，UE)的一部分。
AN可以是无线接入网(radio access network，RAN)。它类似于传统网络里面的基站，部署在靠近终端设备的位置，为特定区域的授权用户提供入网功能，并能够根据用户的级别、业务的需求等使用不同质量的传输隧道传输用户数据。AN能够管理自身的资源，合理利用，按需为终端设备提供接入服务，把控制信号和用户数据在终端设备和核心网之间转发。
核心网负责维护移动网络的签约数据，管理移动网络的网元，为终端设备提供会话管理，移动性管理，策略管理，安全认证等功能。在终端设备附着的时候，为终端设备提供入网认证；在终端设备有业务请求时，为终端设备分配网络资源；在终端设备移动的时候，为终端设备更新网络资源；在终端设备空闲的时候，为终端设备提供快恢复机制；在终端设备去附着的时候，为终端设备释放网络资源；在终端设备有业务数据时，为终端设备提供数据路由功能，如转发上行数据到数据网络；或者从数据网络接收终端设备下行数据，转发到(R)AN，从而发送给终端设备。
在图1所述的系统架构中，核心网的控制面包括AUSF、AMF、SMF、UDM、PCF和AF，核心网的用户面包括UPF。其中，AUSF，负责终端设备的安全认证。AMF，负责终端设备的接入管理和移动性管理。SMF，负责终端设备的会话管理。UDM，负责用户签约上下文管理。PCF，负责用户策略管理。AF，负责用户应用管理。UPF，负责根据SMF的路由规则执行用户数据包转发。
数据网络是为用户提供业务服务的数据网络，一般客户端位于终端设备，服务端位于 数据网络。数据网络可以是私有网络，如局域网，也可以是不受运营商管控的外部网络，如因特网(Internet)，还可以是运营商共同部署的专有网络，如配置的IP多媒体网络子系统(IP multimedia core network subsystem，IMS)服务。
上述网络架构适用的通信系统包括但不限于：码分多址(Code Division Multiple Access，CDMA)IS-95、码分多址(Code Division Multiple Access，CDMA)2000、时分同步码分多址(Time Division-Synchronous Code Division Multiple Access，TD-SCDMA)、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)、时分双工-长期演进(Time Division Duplexing-Long Term Evolution，TDD LTE)、频分双工-长期演进(Frequency Division Duplexing-Long Term Evolution，FDD LTE)、长期演进-增强(Long Term Evolution-Advanced，LTE-advanced)，以及未来演进的各种无线通信系统(例如，5G NR系统)。
另一种本申请实施例可适用的网络架构可以为，该网络架构中包括终端设备、接入网设备、会话管理网元、移动性管理网元、用户管理网元。
终端是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
接入网设备，是一种为终端提供无线通信功能的设备。接入网设备例如包括但不限于：5G中的下一代基站(g nodeB，gNB)、演进型节点B(evolved node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(baseBand unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心等。
会话管理网元，主要用于移动网络中的会话管理，如会话建立、修改、释放。具体功能如为用户分配互联网协议(internet protocol，IP)地址、选择提供报文转发功能的用户面网元等。在5G系统中，会话管理网元可以是会话管理功能(session management function，SMF)网元，在未来通信如6G中，会话管理网元仍可以是SMF网元，或有其它的名称，本申请不做限定。
移动性管理网元，主要用于移动网络中的移动性管理，如用户位置更新、用户注册网络、用户切换等。在5G通信系统中，移动性管理网元可以是接入与移动性管理功能(access and mobility management function，AMF)网元，在未来通信如6G通信中，移动性管理网元仍可以是AMF网元，或者有其它名称，本申请对此不作限定。
用户管理网元，主要用于根据会话管理网元的路由规则执行用户数据包的转发。在5G通信系统中，用户管理网元可以是用户面功能(user plane function，UPF)网元，在未来通信如6G通信中，用户管理网元仍可以是UPF网元，或者有其它名称，本申请对此不作限定。
可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运 行软件功能，或者是平台(例如云平台)上实例化的虚拟化功能。
上述网元或者功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行的软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
为方便说明，本申请后续，以会话管理网元为会话管理功能SMF网元，用户管理网元为用户面功能UPF网元，移动性管理网元为接入和移动性管理功能AMF网元，为例进行说明。进一步地，将AMF网元简称为AMF，SMF网元简称为SMF，NRF网元简称为NRF。即本申请后续所描述的AMF均可替换为移动性管理网元，SMF均可替换为会话管理网元，NRF均可替换为网络存储网元。
在目前的5G通信标准中定义了5G网络支持互联网协议(Internet protocol，IP)类型协议数据单元(protocol data unit，PDU)会话、以太网(Ethernet)类型PDU会话和非结构化PDU会话三种类型的会话。针对Ethernet类型PDU会话，目前标准中还未给出网络侧应如何确定终端设备的寻呼策略的方案。
本申请实施例中，针对一个PDU会话中的不同流或业务，所述寻呼策略可包括但不限于：寻呼重传输机制(即寻呼的频率或时间间隔)、是否在AMF高负载时寻呼终端设备、是否应用子区域寻呼，例如是否先在终端设备的最后跟踪区(tracking area，TA)或小区下发寻呼，然后再在终端设备的整个注册区域寻呼。
经申请人的研究发现，在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)网络中，Ethernet类型PDU会话可用于承载多种类型的业务，而不同类型的业务对数据通信的实时性、可靠性的要求可能不同，因而，有必要为一个Ethernet类型PDU会话中的不同流或业务，应用不同的寻呼策略。
例如，在工业场景下，工业终端设备能够发起Ethernet类型的PDU会话通过3GPP网络接入已部署的工业以太网。工业通信所传输的Ethernet类型的数据主要有两类，一类是实时性、可靠性要求高的即时通信，如工业控制信令，闭环反馈等。另一类是实时性要求较低，数据率较高的非即时通信，如广播报文，数据报文等。因此，针对一个Ethernet类型的PDU会话中不同的业务类型的数据包，3GPP网络应当提供不同的寻呼策略，以保证即时通信能够及时发送给空闲态的终端设备，而非即时通信可以暂时缓存在网络侧，避免频繁唤醒终端设备。
有鉴于此，本申请实施例提供一种通信方法，用以在网络侧触发终端设备寻呼时，确定终端设备的寻呼策略。如图2所示，该通信方法包括如下步骤S201至步骤S204：
步骤S201：会话管理功能网元获取策略选择信息与寻呼策略信息之间的对应关系；
步骤S202：所述会话管理功能网元获取待发送给终端设备的以太数据包的第一策略选择信息；
步骤S203：所述会话管理功能网元根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息，并将所述第一寻呼策略信息发送给接入管理功能网元；
步骤S204：接入管理功能网元接收会话管理功能网元发送的所述第一寻呼策略信息，使用所述第一寻呼策略信息指示的寻呼策略，寻呼终端设备。
如此，当存在待发送给终端设备的以太数据包时，会话管理功能网元可获取该以太数据包的第一策略选择信息，根据该第一策略选择信息确定以太数据包的第一寻呼策略信息，并将该第一寻呼策略信息发送给接入管理功能网元，以便接入管理功能网元使用该第一寻 呼策略信息指示的寻呼策略，寻呼终端设备。
需要说明的是，在步骤S301之前，核心网中存在待发送给终端设备的下行数据包。该下行数据包可以是核心网中的用户面功能网元从数据网络处接收的。由于接收到该下行数据包时，终端设备处于空闲态，因而核心网会触发设备寻呼的流程。本申请实施例中，该下行数据包具体可以是以太数据包。
本申请实施例中，该终端设备为曾建立过Ethernet类型的PDU会话，但后来又切换回空闲态的终端设备。可以理解，只有曾建立过Ethernet类型的PDU会话，数据网络才会主动向终端设备发送以太数据包，核心网中才会存在待发送给该终端设备的以太网数据包。
在步骤S201的具体实施中，会话管理功能网元中可获取各个策略选择信息与寻呼策略信息之间的对应关系。其中，策略选择信息为用于选择确定寻呼策略的信息，例如可以是以太数据包的包头中的预设字段(如EtherType字段或User Priority字段)，或者也可以是第五代移动通信技术服务质量指示5QI。
本申请实施例中，会话管理功能网元可以从自身的本地存储中获取该对应关系，也可以从上述网络架构中的其他网元处获取，本申请实施例对此不作具体限制。为了描述简便，本申请实施例以会话网络管理网元从本地存储中获取为例进行说明。需要说明的是，当会话管理网元从本地获取该对应关系时，该对应关系可以是会话管理功能网元预先配置好并存储在本地的。
在步骤S202的具体实施中，会话管理功能网元可获取待发送给终端设备的以太数据包的第一策略选择信息。其中，该第一策略选择信息可以为该以太网数据包的包头中的预设字段，或者也可以为第五代移动通信技术服务质量指示(5G QoS indicator，5QI)。
若第一策略选择信息为以太网数据包的包头中的预设字段，那么会话管理功能网元可通过如下两种方式获取该第一信息：
第一种获取方式：会话管理功能网元接收用户面功能网元发送的第一信息，即用户面功能网元接收数据网络发送的以太数据包后，通过识别该以太数据包的包头中的预设字段，确定第一策略选择信息，进而将该第一策略选择信息发送给会话管理功能网元。
需要说明的是，本申请实施例中，会话管理功能网元可在确定通过核心网的用户面向终端设备发送以太数据包的场景下，采用第一种获取方式。
本申请实施例中，用户面功能网元可通过多种方式发送该第一策略选择信息。例如，用户面功能网元确定以太数据包的第一策略选择信息后，会向会话管理功能网元发送下行数据通知消息，以表示接收到了终端设备的以太数据包。因而，用户面功能网元可在该下行数据通知消息中携带该第一策略选择信息，以实现将第一策略选择信息发送给会话管理功能网元。
第二种获取方式：会话管理功能网元根据以太数据包的包头，确定第一策略选择信息，即用户面功能网元接收到数据网络发送的以太数据包后，将该以太数据包发送给会话管理功能网元，由会话管理功能网元识别该以太数据包的包头中的预设字段，确定第一策略选择信息。
需要说明的是，本申请实施例中，会话管理功能网元可在确定通过控制面向终端设备发送以太数据包时，采用第二种获取方式。
在第一种可能的设计中，所述预设字段可以为以太网数据包的包头中的以太网类型EtherType字段，如Ethernet II协议、802.3协议或其它协议中所定义的以太帧格式中的 EtherType字段。
图3和图4分别为Ethernet II协议和802.3协议中定义的以太帧的帧格式示意图。如图3和图4所示，在Ethernet II协议定义的帧格式中，EtherType字段称作协议类型字段，在802.3协议定义的帧格式中，EtherType字段称作类型长度字段，且这两种帧格式中所定义的EtherType字段均占据两个字节的长度。
EtherType字段用于标识以太数据包(即以太帧)中所承载数据的协议类型，不同的协议类型使用不同的取值来区分。例如，0x0080代表网际协议版本4(Internet Protocol Version 4，IPv4)，0x0806代表地址解析协议(Address Resolution Protocol，ARP)，0x8864代表基于以太网的点对点通讯协议(Point to Point Protocol over Ethernet，PPPoE)。相应地，第一策略选择信息即为以太数据包的包头中该EtherType字段的取值，即以太数据包所承载数据的协议类型。
在另一种可能的设计中，所述预设字段还可以为用户优先级User Priority字段，如802.1Q协议或其它协议所定义的以太帧的帧格式中的User Priority字段。
以802.1Q协议定义的以太帧格式为例，图5为802.1Q协议定义的以太帧的帧格式的示意图，如图6所示，该帧格式中包括一个4字节的802.1Q虚拟局域网(virtual local area network，VLAN)标签tag字段，该字段下又包括一个3比特的子字段，即用户优先级User Priority字段。该User Priority字段可作为以太网数据包的服务类别(class of service，CoS)，用以区分以太数据包的优先级。相应地，所述第一策略选择信息为该User Priority字段的取值，即以太数据包的优先级。
本申请实施例中，所述User Priority字段的取值可以为优先级码点(PCP，priority code point，PCP)，也可以为丢弃合格指示(drop eligible indicator，DEI)，或者还可以为PCP和DEI，其中，PCP用于标识以太数据包或以太帧的优先级别，DEI用于标识以太数据包或以太帧的丢弃优先级别。
若第一信息为5QI，会话管理功能网元获取第一策略选择信息，可以为接收用户面功能网元发送的5QI。其中，该5QI可由用户面功能网元根据接收到的以太数据包，以及与该以太数据包匹配的过滤策略确定，用于指示转发数据流时应用的服务质量(Quality of Service，QoS)，如丢包率、时延等。
本申请实施例中，用户面功能网元中可存储有包过滤策略，该包过滤策略包括一系列的过滤策略，每个过滤策略均可对应一个5QI。各个过滤策略对应的5QI的取值可以相同，也可以不相同，本申请对此不做具体限制。即包过滤策略中的一个或多个过滤策略可以对应同一个5QI值。
当用户面功能网元接收到待发送给终端设备的以太数据包后，用户面功能网元可根据以太数据包的包头中的MAC地址、VLAN标识等信息去匹配过滤策略，利用包过滤策略中与该以太数据包匹配最好的过滤策略，确定出用于传输该以太数据包的PDU会话，进而可通过该PDU会话将该以太数据包发送给终端设备。与此同时，用户面功能网元还可将与该以太数据包匹配最好的过滤策略所对应的5QI取值，确定为该以太数据包对应的5QI。
如前所述，本申请实施例中所述的终端设备为曾建立过Ethernet类型PDU会话的终端设备，因而，在之前Ethernet类型PDU会话的建立过程中，会话管理功能网元可向用户面功能网元发送包过滤策略，用户面功能网元接收该包过滤策略并存储。
在步骤S203的具体实施中，会话管理功能网元中获取到以太数据包的第一策略选择信息后，可根据该第一策略选择信息，以及获取到的各策略选择信息与寻呼策略信息之间的对应关系，确定以太数据包对应的第一寻呼策略信息，并将该第一寻呼策略信息发送给接入管理功能网元。本申请实施例中，寻呼策略信息可以为用于标识一个寻呼策略的标识信息，也可以为具体的寻呼策略，本申请对此不作具体限定。应理解，当寻呼策略信息为寻呼策略标识时，不同的寻呼策略分别具有对应的标识信息，且互不相同。为了描述简便，下文中将以寻呼策略信息为代表寻呼策略的标识信息为例进行说明。
具体的，若第一策略选择信息为以太数据包承载数据的协议类型，那么会话管理功能网元中获取到的对应关系可为协议类型的各个取值(即EtherType字段的各种可能的取值)与寻呼策略信息之间的对应关系，如下表1所示。
表1第一信息为协议类型时的对应关系
协议类型 寻呼策略信息
0x0080 1
0x0806 2
0x8864 3
本申请实施例中，每一协议类型均可对应一个寻呼策略信息，从而在寻呼终端设备时，能够根据以太数据包承载数据的协议类型，执行对应的寻呼策略。
需要说明的是，不同的协议类型可对应不同的寻呼策略信息，也可存在一个或多个协议类型对应同一寻呼策略信息的情形，本申请对此不作限制。
同理，若第一策略选择信息为以太数据包的优先级，那么会话管理功能网元获取到的对应关系可为优先级的各个取值(即User Priority字段的各种可能的取值)与寻呼策略信息之间的对应关系，如下表2所示。
表2第一信息为优先级时的对应关系
优先级 寻呼策略标识
优先级1 1
优先级1 2
优先级3 3
本申请实施例中，每一优先级均可对应一个寻呼策略信息，从而在寻呼终端设备时，能够根据以太数据包的优先级，执行对应的寻呼策略。
需要说明的是，不同的优先级可以对应不同的寻呼策略信息，也可存在一个或多个优先级对应同一寻呼策略信息的情形，本申请对此不作限制。
若第一策略选择信息为5QI，那么会话管理功能网元中存储的对应关系可为5QI的各种可能的取值与寻呼策略标识之间的对应关系，如下表3所示。
表3第一信息为5QI时的对应关系
5QI取值 寻呼策略标识
取值1 1
取值2 2
取值3 3
本申请实施例中，每个5QI的取值均可对应一个寻呼策略信息，从而在寻呼终端设备时，能够根据以太数据包对应的5QI，执行对应的寻呼策略。
需要说明的是，不同的5QI的取值可以对应不同的寻呼策略信息，也可存在一个或多个5QI的取值对应同一寻呼策略信息的情形，本申请对此不作限制。
本申请实施例中，会话管理功能网元可以通过多种方式将以太数据包的第一寻呼策略信息发送给接入管理功能网元。例如，会话管理功能网元在接收到用户面功能网元发送的下行数据通知消息后，会向接入管理功能网元发送调用终端设备的可达性服务请求。因而，会话管理功能网元可在该可达性服务请求中携带该第一寻呼策略信息，以达到将第一寻呼策略信息发送给接入管理功能网元的目的。
在步骤S204的具体实施中，接入管理功能网元中存储有各个寻呼策略信息分别对应的寻呼策略，因而，接入管理功能网元可接收会话管理功能网元发送的第一寻呼策略信息，并使用该第一寻呼策略信息所指示的寻呼策略，对终端设备进行寻呼。之后，接入管理功能网元会向会话管理功能网元发送寻呼响应，用以指示寻呼成功还是寻呼失败。
在通过核心网的用户面向终端设备发送以太数据包的场景下，如果该寻呼响应指示终端设备寻呼成功，可由用户面功能网元将从数据网络接收到的以太数据包发送给终端设备；如果该寻呼响应指示终端设备寻呼失败，用户面功能网元可启动数据处理策略，例如，暂时缓存或丢弃该以太数据包。
在通过核心网的控制面向终端设备发送以太数据包的场景下，如果该寻呼响应指示终端设备寻呼成功，由于用户面功能网元已将该以太数据包发送给会话管理功能网元，因而，可由会话管理功能网元将该以太数据包发送给终端设备。如果该寻呼响应指示终端设备寻呼失败，也可由会话管理功能网元启动相应地的数据处理策略，暂时缓存或丢弃该以太数据包。
本申请实施例中，接入管理功能网元根据确定出的寻呼策略，执行寻呼的过程可具体包括：接入管理功能网元向该终端设备的TAL中的每个RAN(如每个基站)发送寻呼命令，由各RAN来寻呼设备。以RAN为基站为例，基站可向终端设备发送寻呼请求，终端设备执行终端设备触发的业务请求流程，包括终端设备通过基站向AMF发送业务请求信令，AMF通过AUSF对终端设备进行安全认证，SMF为非IP类型PDU会话恢复网络侧的用户面资源，网络侧更新基站侧隧道地址和转发隧道。通过终端设备触发的业务请求流程，终端设备可以进入连接态，恢复Ethernet类型PDU会话的用户面资源，以传输数据网络的下行数据。终端设备进入连接态并成功恢复Ethernet类型PDU会话的用户面资源；UPF将数据网络下发的下行数据发送至终端设备。
本申请实施例中，用户面功能网元可根据终端设备的类型，确定是通过核心网的用户面发送该终端设备的以太数据包，还是通过核心网的控制面发送该终端设备的以太数据包。
例如，对于各类物联网(Internet of Things，IOT)类型的终端设备，通常每次通信需要传输的数据量较小。若核心网通过用户面发送数据，那么每次进行数据传输时，均需为该终端设备建立Ethernet类型的PDU会话。分析可知，考虑到建立Ethernet类型的PDU会话所需的系统开销，以及需要通过建立的PDU会话传输的数据量较小，通过用户面向IOT类型的终端设备发送数据，会显著浪费系统资源。
因此，这类IOT终端设备的数据，可以通过控制面以发送控制信令的方式发送，而不 再建立Ethernet类型的PDU会话。也就是说，用户面功能网元接收到数据网络发送的以太数据包时，不再向会话管理功能网元发送下行数据通知消息，而是直接将接收到的以太数据包转发给会话管理功能网元，待寻呼到终端设备后，由会话管理功能网元将该以太数据包发送给终端设备。
下面通过具体的实施例对本申请提供的通信方法进行详细说明。
为了描述简便，各个实施例将以用户面功能网元为UPF，会话管理功能网元为SMF、接入管理功能网元为AMF为例进行说明。需要说明的是，UPF、SMF、AMF为目前的5G通信系统中定义的网元，在其他通信系统中，也由具有相应功能的网元来替换。
实施例一：第一策略选择信息为以太数据包的协议类型，通过用户面发送
本申请实施例一可适用于Ethernet II协议、802.3协议定义的以太帧的帧格式。即本申请实施例一中所述的以太数据包可具有如图3或图4所示的帧格式。
图6为本发明实施例一提供的一种通信方法所对应的流程示意图，如图6所示，该方法包括：
步骤S601：SMF配置寻呼策略生成规则，该寻呼策略生成规则具体为各个协议类型与寻呼策略信息之间的对应关系。
步骤S602：UPF接收数据网络发送的以太数据包。该以太数据包为数据网络待发送给终端设备的，因此也可称为下行数据包。
步骤S603：UPF识别该以太数据包的包头中的EtherType字段，获取该以太数据包所承载数据的第一协议类型，该第一协议类型即为以太数据包的第一策略选择信息，该第一协议类型为以太数据包的包头中EtherType字段的取值。
步骤S604：UPF向SMF发送下行数据通知，该下行数据通知中包括第一协议类型。
步骤S605：SMF接收下行数据通知，并根据该下行数据通知中包括的第一协议类型，以及预先配置的寻呼策略生成规则，确定出该第一协议类型对应的第一寻呼策略信息。
步骤S606：SMF向AMF发送请求消息，该请求消息中包括确定出的第一寻呼策略信息。
步骤S607：AMF接收请求消息，使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备。该请求消息具体可以是调用终端设备的可达性服务请求。
需要说明的是，在本申请实施例一中，由于通过核心网的用户面发送该以太数据包，因而，在步骤S606中的请求消息中还可进一步包括Ethernet类型PDU会话的会话标识，以便AMF寻呼到终端设备后，使用该会话标识对应的PDU会话将该以太数据包发送给终端设备。
由此可知，本申请实施例一中，UPF可接收待发送给终端设备的以太数据包，获取该以太数据包承载数据的第一协议类型，并将该第一协议类型作为第一策略选择信息发送给SMF。随后，SMF可根据该第一协议类型和预先配置的寻呼策略生成规则，确定对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给AMF。如此，AMF可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的协议类型，而执行不同的寻呼策略。
实施例二：第一策略选择信息为以太数据包的协议类型，通过控制面发送
本申请实施例二可适用于Ethernet II协议、802.3协议定义的以太帧的帧格式。即本申请实施例二中所述的以太数据包可具有如图3或图4所示的帧格式。
图7为本发明实施例二提供的一种通信方法所对应的流程示意图，如图8所示，该方法包括：
步骤S701：SMF配置寻呼策略生成规则，该寻呼策略生成规则具体为各个协议类型与寻呼策略标识之间的对应关系。
步骤S702：UPF接收数据网络发送的以太数据包，并将该以太数据包发送给SMF。
步骤S703：SMF接收UPF发送的以太数据包，识别该以太数据包的包头中的EtherType字段，获取该以太数据包所承载数据的第一协议类型，该协议类型即为以太数据包的第一策略选择信息，该第一协议类型可为包头中EtherType字段的取值。
步骤S704：SMF根据该以太数据包的第一协议类型和预先配置的寻呼策略生成规则，确定出该第一协议类型对应的第一寻呼策略信息。
步骤S705：SMF向AMF发送请求消息，该请求消息中包括确定出的第一寻呼策略信息。
步骤S706：AMF接收请求消息，使用该请求消息中的第一寻呼策略信息所指示的寻呼策略寻呼终端设备。该请求消息具体可以是调用终端设备的可达性服务请求。
由此可知，本申请实施例二中，UPF可在接收到待发送给终端设备的以太数据包后，将该以太数据包发送给SMF，由SMF获取该以太数据包承载数据的第一协议类型，并根据该第一协议类型和预先配置的寻呼策略生成规则，确定对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给AMF。如此，AMF可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的协议类型，而执行不同的寻呼策略。
实施例三：第一策略选择信息为以太数据包的优先级，通过用户面发送
本申请实施例三可适用于802.1Q协议定义的以太帧的帧格式，即本申请实施例三中所述的以太数据包可具有如图5所示的帧格式。
图8为本发明实施例三提供的一种通信方法所对应的流程示意图，如图8所示，该方法包括：
步骤S801：SMF配置寻呼策略生成规则，该寻呼策略生成规则具体为以太数据包的优先级的各个取值与寻呼策略信息之间的对应关系。
步骤S802：UPF接收数据网络发送的以太数据包。该以太数据包为数据网络待发送给终端设备的，因此也可称为下行数据包。
步骤S803：UPF识别该以太数据包的包头中的User Priority字段，获取该以太数据包的第一优先级，该第一优先级即为以太数据包的第一策略选择信息。该第一优先级为以太数据包的包头中User Priority字段的取值。
步骤S804：UPF向SMF发送下行数据通知，该下行数据通知中包括该以太数据包的第一优先级。
步骤S805：SMF接收下行数据通知，并根据该下行数据通知中包括的以太数据包的第一优先级，以及预先配置的寻呼策略生成规则，确定出该第一优先级对应的第一寻呼策略信息。
步骤S806：SMF向AMF发送请求消息，该请求消息中包括确定出的第一寻呼策略信息。
步骤S807：AMF接收请求消息，并使用该请求消息中的第一寻呼策略信息，指示的寻呼策略寻呼终端设备。该请求消息具体可以是调用终端设备的可达性服务请求。
需要说明的是，在本申请实施例三中，由于通过核心网的用户面发送该以太数据包，因而，在步骤S806中的请求消息中还可进一步包括Ethernet类型PDU会话的会话标识，以便AMF寻呼到终端设备后，使用该会话标识对应的PDU会话将该以太数据包发送给终端设备。
由此可知，本申请实施例三中，UPF可接收待发送给终端设备的以太数据包，获取该以太数据包的第一优先级，并将该第一优先级发送给SMF。随后，SMF可根据该第一优先级和预先配置的寻呼策略生成规则，确定对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给AMF。如此，AMF可使用该第一寻呼策略信息所指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的以太数据包优先级，而执行不同的寻呼策略。
实施例四：第一策略选择信息为以太数据包的优先级，通过控制面发送
本申请实施例三可适用于802.1Q协议定义的以太帧的帧格式，即本申请实施例四中所述的以太数据包可具有如图5所示的帧格式。
图9为本发明实施例四提供的一种通信方法所对应的流程示意图，如图9所示，该方法包括：
步骤S901：SMF配置寻呼策略生成规则，该寻呼策略生成规则具体为以太数据包的优先级的各个取值与寻呼策略标识之间的对应关系。
步骤S902：UPF接收数据网络发送的以太数据包，并将该以太数据包发送给SMF。
步骤S903：SMF接收UPF发送的以太数据包，识别该以太数据包的包头中的User Priority字段，获取该以太数据包的第一优先级，该第一优先级即为以太数据包的第一策略选择信息。该第一优先级可以为包头中User Priority字段的取值。
步骤S904：SMF根据该以太数据包的第一优先级和预先配置的寻呼策略生成规则，确定出该第一优先级对应的第一寻呼策略信息。
步骤S905：SMF向AMF发送请求消息，该请求消息中包括确定出的第一寻呼策略信息。
步骤S906：AMF接收请求消息，使用该请求消息中的第一寻呼策略信息指示的寻呼策略寻呼终端设备。该请求消息具体可以是调用终端设备的可达性服务请求。
由此可知，本申请实施例四中，UPF可在接收到待发送给终端设备的以太数据包后，将该以太数据包发送给SMF，由SMF获取该以太数据包的第一优先级，并根据该第一优先级和预先配置的寻呼策略生成规则，确定对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给AMF。如此，AMF可使用该第一寻呼策略信息对应的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的以太数据包优先级，而执行不同的寻呼策略。
实施例五：第一策略选择信息为以太数据包对应的5QI，通过用户面发送
本申请实施例五可适用于任何以太协议所定义的以太帧的帧格式，包括但不限于前述 的Ethernet II协议、802.3协议和802.1Q协议，即本申请实施例五中所述的以太数据包可具有如图3、图4或图5中任一附图所示的帧格式。
图10为本发明实施例五提供的一种通信方法所对应的流程示意图，如图10所示，该方法包括：
步骤S1001：SMF配置寻呼策略生成规则，该寻呼策略生成规则具体为5QI的各个取值与寻呼策略信息之间的对应关系。
步骤S1002：UPF接收数据网络发送的以太数据包。该以太数据包为数据网络待发送给终端设备的，因此也可称为下行数据包。
步骤S1003：UPF根据SMF在Ethernet类型PDU会话建立过程中发送的包过滤策略，确定该以太数据包对应的5QI。该5QI可反映出转发该以太数据包时应用的QoS。
步骤S1004：UPF向SMF发送下行数据通知，该下行数据通知中包括该以太数据包对应的5QI。
步骤S1005：SMF接收下行数据通知，并根据该下行数据通知中包括的该以太数据包的5QI，以及预先配置的寻呼策略生成规则，确定出该5QI值对应的第一寻呼策略信息。
步骤S1006：SMF向AMF发送请求消息，该请求消息中包括确定出的第一寻呼策略信息。
步骤S1007：AMF接收请求消息，使用该请求消息中的第一寻呼策略信息指示的寻呼策略寻呼终端设备。该请求消息具体可以是调用终端设备的可达性服务请求。
需要说明的是，在本申请实施例五中，由于通过核心网的用户面发送该以太数据包，因而，在步骤S1006中的请求消息中还可进一步包括Ethernet类型PDU会话的会话标识，以便AMF寻呼到终端设备后，使用该会话标识对应的PDU会话将该以太数据包发送给终端设备。
由此可知，本申请实施例五中，UPF可接收待发送给终端设备的以太数据包，根据SMF发送的包过滤策略确定该以太数据包对应的5QI，并将该5QI发送给SMF。随后，SMF可根据该5QI和预先配置的寻呼策略生成规则，确定该5QI对应的第一寻呼策略信息，进而将该第一寻呼策略信息发送给AMF。如此，AMF可使用该第一寻呼策略信息指示的寻呼策略寻呼终端设备，从而在寻呼终端设备时能够根据不同的5QI，而执行不同的寻呼策略。
针对上述方法流程，本发明实施例还提供一种通信设备。如图11所示，为本申请实施例提供一种通信装置的结构示意图，该通信装置可以用于执行上述方法实施例中会话管理功能网元一侧的动作，该通信装置包括：收发单元1101和处理单元1102。其中，该收发单元1101和处理单元1102分别用于执行如下步骤：
所述处理单元1102用于，获取策略选择信息与寻呼策略信息之间的对应关系；获取待发送给终端设备的以太数据包的第一策略选择信息；根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息；所述第一寻呼策略信息用于指示所述接入管理功能网元寻呼所述终端设备时使用的策略。
所述收发单元1101用于，将所述第一寻呼策略信息发送给接入管理功能网元。
在一种可能的设计中，所述处理单元1102具体用于：
接收用户面功能网元发送的所述第一策略选择信息。
在一种可能的设计中，所述处理单元1102还具体用于：
接收所述用户面功能网元发送的所述以太数据包，并根据所述以太数据包确定所述第一策略选择信息。
在一种可能的设计中，所述第一策略选择信息为所述以太数据包的包头中的预设字段。
在一种可能的设计中，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级。
在一种可能的设计中，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI。
本发明实施例还提供另一种通信设备。如图12所示，为本申请实施例提供一种通信装置的结构示意图，该通信装置可以用于执行上述方法实施例中用户面功能网元一侧的动作，该通信装置包括：收发单元1201和处理单元1202。其中，该收发单元1201和处理单元1202分别用于执行如下步骤：
所述收发单元1201用于，接收待发送给终端设备的以太数据包；
所述处理单元1202用于，获取所述以太数据包的第一策略选择信息；所述第一策略选择信息用于所述会话管理功能网元确定所述以太数据包对应的第一寻呼策略信息，所述第一寻呼策略信息用于指示接入管理功能网元寻呼所述终端设备时使用的策略；
所述收发单元还用于，将所述第一策略选择信息发送给会话管理功能网元。
在一种可能的设计中，所述第一策略选择信息为所述以太数据包的包头中的预设字段；
所述处理单元1202具体用于：
根据所述以太数据包的包头中的所述预设字段，确定所述第一寻呼策略信息。
在一种可能的设计中，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
所述处理单元1202具体用于：
根据所述以太数据包的包头中的所述Ethertype字段，确定所述第一策略选择信息；
或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级；
所述处理单元1202具体用于：
根据所述以太数据包的包头中的所述User Priority字段，确定所述第一策略选择信息。
在一种可能的设计中，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI；
所述处理单元1202具体用于：
根据与所述以太数据包相匹配的过滤策略，确定所述5QI。
如图13所示，为本申请实施例提供一种通信装置的结构示意图。该通信装置可执行上述各方法实施例中的会话管理功能网元一侧的动作。参见图13，该装置1300包括：处理器1301、收发机1302、存储器1303和通信接口1304；其中，处理器1301、收发机1302、存储器1303和通信接口1304通过总线1305相互连接。
处理器1301可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。处理器1301还可以进一步包括硬件芯片。上述 硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器1303可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器1403还可以包括上述种类的存储器的组合。
通信接口1304可以为有线通信接入口，无线通信接口或其组合，其中，有线通信接口例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线通信接口可以为WLAN接口。
总线1305可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图13中仅用一条双向箭头表示，但并不表示仅有一根总线或一种类型的总线。
存储器1303可以用于存储程序指令，处理器1301调用该存储器1303中存储的程序指令，可以执行上述方案中所示实施例中的一个或多个步骤，或其中可选的实施方式，使得该通信装置实现上述方法中会话管理功能网元的功能。
处理器1301，用于获取策略选择信息与寻呼策略信息之间的对应关系，获取待发送给终端设备的以太数据包的第一策略选择信息，并根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息。
收发机1302，用于将所述第一寻呼策略信息发送给接入管理功能网元。
如图14所示，为本申请实施例提供一种通信装置的结构示意图。该通信装置可执行上述各方法实施例中的用户面功能网元一侧的动作。
参见图14，该装置1400包括：处理器1401、收发机1402、存储器1403和通信接口1404；其中，处理器1401、收发机1402、存储器1403和通信接口1404通过总线1405相互连接。
处理器1401可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。处理器1401还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器1403可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器1403还可以包括上述种类的存储器的组合。
通信接口1404可以为有线通信接入口，无线通信接口或其组合，其中，有线通信接口例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线通信接口可以为WLAN接口。
总线1405可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图14中仅用一条双向箭头表示，但并不表示仅有一根总线或一种类型的总线。
存储器1403可以用于存储程序指令，处理器1401调用该存储器1403中存储的程序指令，可以执行上述方案中所示实施例中的一个或多个步骤，或其中可选的实施方式，使得该通信装置实现上述方法中会话管理功能网元的功能。
收发机1402，用于接收待发送给终端设备的以太数据包，并将所述第一策略选择信息发送给会话管理功能网元。
处理器1401，用于获取所述以太数据包的第一策略选择信息。
本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第一方面中任一种可能的设计中的方法。
本申请实施例提供一种计算机可读存储介质，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行上述第二方面中任一种可能的设计中的方法。
本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第一方面中任一种可能的设计中的方法。
本申请实施例提供一种计算机程序产品，当计算机读取并执行所述计算机程序产品时，使得计算机执行上述第二方面中任一种可能的设计中的方法。
本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面中任一种可能的设计中的方法。
本申请实施例提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第二方面中任一种可能的设计中的方法。
本申请实施例提供一种通信系统，该系统包括会话管理网元和用户管理网元，其中，该会话管理网元可用于执行上述第一方面或第一方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中会话管理功能网元执行的方法；该用户管理网元可用于执行上述第二方面或第二方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中用户面管理功能网元执行的方法。
在一种可能的设计中，该系统还可以包括上述第一方面、第二方面中与会话管理网元和/或用户管理网元进行交互的其他设备，如移动性管理网元，该移动性管理网元可用于执行本申请实施例提供的方案中接入与移动性管理功能网元执行的方法。
本申请实施例提供一种通信系统，该系统包括会话管理网元，该会话管理网元可用于执行上述第一方面或第一方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中会话管理功能网元执行的方法。
在一种可能的设计中，该系统还可以包括用户管理网元，该用户管理网元可用于执行上述第二方面或第二方面的任一种可能的设计中所述的方法，或者本申请实施例提供的方案中用户面管理功能网元执行的方法。
在一种可能的设计中，该系统还可以包括上述第一方面、第二方面中与会话管理网元和/或用户管理网元进行交互的其他设备，如移动性管理网元，该移动性管理网元可用于执 行本申请实施例提供的方案中接入与移动性管理功能网元执行的方法。
本领域内的技术人员应明白，本发明实施例可提供为方法、系统、或计算机程序产品。因此，本发明实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明实施例是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (24)

  1. 一种通信方法，其特征在于，所述方法包括：
    会话管理网元获取策略选择信息与寻呼策略信息之间的对应关系；
    所述会话管理网元获取待发送给终端设备的以太数据包的第一策略选择信息；
    所述会话管理网元根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息，并将所述第一寻呼策略信息发送给移动性管理网元；所述第一寻呼策略信息用于指示所述移动性管理网元寻呼所述终端设备时使用的策略。
  2. 根据权利要求1所述的方法，其特征在于，所述会话管理网元获取待发送给终端设备的以太数据包的第一策略选择信息，包括：
    所述会话管理网元接收用户管理网元发送的所述第一策略选择信息。
  3. 根据权利要求1所述的方法，其特征在于，所述会话管理网元获取待发送给终端设备的以太数据包的第一策略选择信息，包括：
    所述会话管理网元接收所述用户管理网元发送的所述以太数据包，并根据所述以太数据包确定所述第一策略选择信息。
  4. 根据权利要求1-3任一所述的方法，其特征在于，所述第一策略选择信息为所述以太数据包的包头中的预设字段。
  5. 根据权利要求4所述的方法，其特征在于，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
    或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级。
  6. 根据权利要求2所述的方法，其特征在于，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI。
  7. 一种通信方法，其特征在于，所述方法包括：
    用户管理网元接收待发送给终端设备的以太数据包；
    所述用户管理网元获取所述以太数据包的第一策略选择信息，并将所述第一策略选择信息发送给会话管理网元；所述第一策略选择信息用于所述会话管理网元确定所述以太数据包对应的第一寻呼策略信息，所述第一寻呼策略信息用于指示移动性管理网元寻呼所述终端设备时使用的策略。
  8. 根据权利要求7所述的方法，其特征在于，所述第一策略选择信息为所述以太数据包的包头中的预设字段；
    所述用户管理网元获取所述以太数据包的第一策略选择信息，包括：
    所述用户管理网元根据所述以太数据包的包头中的所述预设字段，确定所述第一策略选择信息。
  9. 根据权利要求8所述的方法，其特征在于，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
    所述用户管理网元根据所述以太数据包的包头中的所述预设字段，确定所述第一策略选择信息，包括：
    所述用户管理网元根据所述以太数据包的包头中的所述Ethertype字段，确定所述第一策略选择信息；
    或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级；
    所述用户管理网元根据所述以太数据包的包头中的所述预设字段，确定所述第一策略选择信息，包括：
    所述用户管理网元根据所述以太数据包的包头中的所述User Priority字段，确定所述第一策略选择信息。
  10. 根据权利要求7所述的方法，其特征在于，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI；
    所述用户管理网元获取所述以太数据包的第一策略选择信息，包括：
    所述用户管理网元根据与所述以太数据包相匹配的过滤策略，确定所述5QI。
  11. 一种通信装置，其特征在于，所述装置包括：处理模块和收发模块；
    所述处理模块用于，获取策略选择信息与寻呼策略信息之间的对应关系；获取待发送给终端设备的以太数据包的第一策略选择信息；根据所述第一策略选择信息和所述对应关系，确定所述以太数据包对应的第一寻呼策略信息；所述第一寻呼策略信息用于指示所述移动性管理网元寻呼所述终端设备时使用的策略；
    所述收发模块用于，将所述第一寻呼策略信息发送给所述移动性管理网元。
  12. 根据权利要求11所述的装置，其特征在于，所述处理模块具体用于：
    接收用户管理网元发送的所述第一策略选择信息。
  13. 根据权利要求11所述的装置，其特征在于，所述处理模块还具体用于：
    接收所述用户管理网元发送的所述以太数据包，并根据所述以太数据包确定所述第一策略选择信息。
  14. 根据权利要求11-13任一所述的装置，其特征在于，所述第一策略选择信息为所述以太数据包的包头中的预设字段。
  15. 根据权利要求14所述的装置，其特征在于，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
    或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级。
  16. 根据权利要求12所述的装置，其特征在于，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI。
  17. 一种通信装置，其特征在于，所述装置包括：处理模块和收发模块；
    所述收发模块用于，接收待发送给终端设备的以太数据包；
    所述处理模块用于，获取所述以太数据包的第一策略选择信息；所述第一策略选择信息用于会话管理网元确定所述以太数据包对应的第一寻呼策略信息，所述第一寻呼策略信息用于指示移动性管理网元寻呼所述终端设备时使用的策略；
    所述收发模块还用于，将所述第一策略选择信息发送给所述会话管理网元。
  18. 根据权利要求17所述的装置，其特征在于，所述第一策略选择信息为所述以太数据包的包头中的预设字段；
    所述处理模块具体用于：
    根据所述以太数据包的包头中的所述预设字段，确定所述第一策略选择信息。
  19. 根据权利要求18所述的装置，其特征在于，所述预设字段为所述以太数据包的包头中的以太网类型Ethertype字段，所述Ethertype字段用于指示所述以太数据包所承载数据的协议类型；
    所述处理模块具体用于：
    根据所述以太数据包的包头中的所述Ethertype字段，确定所述第一策略选择信息；
    或者，所述预设字段为所述以太数据包的包头中的用户优先级User Priority字段，所述User Priority字段用于指示所述以太数据包的优先级；
    所述处理模块具体用于：
    根据所述以太数据包的包头中的所述User Priority字段，确定所述第一策略选择信息。
  20. 根据权利要求17所述的装置，其特征在于，所述第一策略选择信息为第五代移动通信技术服务质量指示5QI；
    所述处理模块具体用于：
    根据与所述以太数据包相匹配的过滤策略，确定所述5QI。
  21. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述装置执行如权利要求1至6中任一项所述的方法。
  22. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被执行时，如权利要求1至6中任意一项所述的方法被执行。
  23. 一种通信装置，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合：
    所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述装置执行如权利要求7至10中任一项所述的方法。
  24. 一种可读存储介质，其特征在于，包括程序或指令，当所述程序或指令被执行时，如权利要求7至10中任意一项所述的方法被执行。
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