WO2021218627A1 - 一种通信方法及相关设备 - Google Patents

一种通信方法及相关设备 Download PDF

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Publication number
WO2021218627A1
WO2021218627A1 PCT/CN2021/086928 CN2021086928W WO2021218627A1 WO 2021218627 A1 WO2021218627 A1 WO 2021218627A1 CN 2021086928 W CN2021086928 W CN 2021086928W WO 2021218627 A1 WO2021218627 A1 WO 2021218627A1
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WIPO (PCT)
Prior art keywords
target
information
user
usf
request message
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PCT/CN2021/086928
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English (en)
French (fr)
Inventor
彭涛
史慧荣
张银叶
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2022566027A priority Critical patent/JP7541116B2/ja
Priority to BR112022021043A priority patent/BR112022021043A2/pt
Priority to EP21796708.2A priority patent/EP4132197A4/en
Publication of WO2021218627A1 publication Critical patent/WO2021218627A1/zh
Priority to US17/976,052 priority patent/US20230050466A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • H04L41/5019—Ensuring fulfilment of SLA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/76—Routing in software-defined topologies, e.g. routing between virtual machines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/122—Avoiding congestion; Recovering from congestion by diverting traffic away from congested entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • This application relates to the field of wireless communication, and in particular to a communication method and related equipment.
  • SDN software-defined network
  • NFV network functions virtualization
  • BNG Broadband Network Gateway
  • CP control plane
  • the embodiments of the present application provide a communication method and related equipment, which are used to implement dynamic scheduling of end users through the user plane selection function entity USF in a broadband network gateway BNG device, reduce the processing burden of the control plane entity CP, and improve communication performance.
  • the first aspect of the embodiments of the present application provides a communication method, which is applied to a control plane entity (control plane, CP), the CP is included in a broadband network gateway (broadband network gateway, BNG), and the BNG also includes a user plane selection function entity (user plane steering function, USF), in this method, the CP sends a first message to the USF, the first message includes terminal user information, and the terminal user information includes user access information and service level agreement SLA information; , The CP receives a first request message from the USF, the first request message includes the identifier of the target UP, and the target UP is associated with the end user, that is, instructs to schedule the end user according to the target UP; then, the CP according to the target The UP identifier handles the connection between the end user and the target UP.
  • control plane control plane
  • BNG broadband network gateway
  • USF user plane steering function entity
  • the CP sends a first message to the USF, the first message includes terminal user information, and instructs the USF to schedule the terminal user according to the terminal user information, and then the CP according to the target UP carried in the first request message sent by the USF
  • the identifier determines that the terminal user is scheduled to the target UP, that is, the scheduling policy of the terminal user is determined through the USF.
  • the CP further processes the connection between the terminal user and the target UP according to the target UP identifier, Therefore, the USF realizes the determination of the scheduling strategy of the terminal user in the BNG device, reduces the processing burden of the control plane entity CP, and improves the communication performance.
  • a first communication interface may be used between the CP and the USF, the CP may send a first message to the USF through the first communication interface, and the USF may use the first communication interface.
  • a communication interface sends the first request message to the CP.
  • the CP and the USF can exchange data through the first communication interface.
  • the first communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the CP and the USF can be aligned through the first communication interface.
  • the content of the messages transmitted by the two improves communication efficiency.
  • the first message may include a first object field, a first operation field, and a first operation attribute field
  • the first request message includes a second object field , The second operation field, and the second operation attribute field.
  • the usable data model in the communication interface (for example, the first communication interface) between the CP and the USF, the usable data model includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the first message sent by the CP to the USF and the first message sent by the USF to the CP may contain the at least three fields, so that the CP and the USF can align the content of the messages transmitted by the two according to the at least three fields to improve communication efficient.
  • the first object field includes the user access information
  • the SLA information includes initial SLA information
  • the first operation field includes information indicating that the operation type is user online
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the CP can indicate to the USF the terminal user to be scheduled through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF, and use the information contained in the first operation field.
  • the information indicating that the operation type is the user online indicates to the USF to schedule the terminal user to go online; after that, the USF can indicate the currently scheduled terminal to the CP through the user access information in the second object field in the communication interface between the USF and the CP
  • the user instructs the CP to migrate the terminal user online through the information contained in the second operation field indicating that the operation type is the first migration request, and instructs the CP to indicate the terminal user through the identifier of the target UP contained in the second operation attribute field.
  • the user migrates to the target UP, so as to realize the scheduling of the terminal user's online connection in the BNG.
  • the CP updates the SLA of the terminal user.
  • the first object field includes the user access Information and the SLA information, the SLA information includes update SLA information;
  • the first operation field includes information indicating that the operation type is to update the user SLA;
  • the second object field includes the user access information,
  • the second operation field includes information indicating that the operation type is the second migration request, and the second operation attribute field includes the identifier of the target UP.
  • the CP when the CP updates the SLA of the terminal user, the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF Instruct the USF to update the SLA of the end user through the information contained in the first operation field indicating that the operation type is updating the user’s SLA; after that, the USF can use the in the second object field in the communication interface between the USF and the CP.
  • the user access information indicates the terminal user currently scheduled to the CP, and the information indicating that the operation type is the second migration request contained in the second operation field indicates to the CP that the terminal user is migrated based on the updated SLA, and the second operation attribute field is used.
  • the included identifier of the target UP indicates to the CP to migrate the terminal user to the target UP, so as to realize the scheduling of the terminal user's online connection in the BNG.
  • the user access information includes the migration function entity SF identity ID, QINQ information, and the initial user plane entity UP ID.
  • different user access information can indicate one or more different end users
  • the CP can use the migration function entity SF identity ID, QINQ information, and UP ID of the initial user plane entity included in the user access information.
  • the information indicates to the USF one or more different end users that need to be scheduled, so that the USF can be instructed to the end users that need to be scheduled through a variety of implementation methods, and the flexibility of the solution is improved.
  • the user access information further includes at least one of the following: network segment information, group UP ID, and access interface ID.
  • the user access information may also include the SF ID, QINQ information, and initial UP ID. It may include network segment information, group UP ID, and access interface ID, thereby indicating to the USF at least one of scheduling network segment information, group UP ID, and access interface ID, and multiple different terminal users corresponding to it.
  • the CP processing the connection between the terminal user and the target UP according to the identifier of the target UP may specifically include: the CP sends the terminal user's information to the target UP Logo.
  • the CP is used to schedule the connection between the terminal user and the BNG, where the CP implements the process of processing the connection between the terminal user and the target UP according to the identifier of the target UP, which may be to the target UP.
  • the identification of the terminal user is sent, so that the target UP knows that the terminal user is scheduled, and the dynamic scheduling between the terminal user and the target UP is processed.
  • the second aspect of the embodiments of the present application provides a communication method, which is applied to a user plane selection function entity USF.
  • the USF is included in a broadband network gateway BNG.
  • the BNG also includes a control plane entity CP and a software-defined network SDN controller.
  • the USF when the CP schedules a terminal user, the USF receives a first message from the CP, the first message includes terminal user information, and the terminal user information includes user access information and service level agreement SLA information; then, the USF according to The first message determines the target UP associated with the terminal user, that is, instructs the CP to schedule the terminal user according to the target UP; then, the USF sends a first request message to the CP, and the first request message includes the target UP Of the logo.
  • the USF receives a first message from the CP, the first message includes user access information and SLA information, and instructs the USF to schedule the terminal user according to the terminal user information.
  • the CP can follow the first request message sent by the USF
  • the carried identifier of the target UP determines that the terminal user is scheduled to the target UP, thereby realizing dynamic scheduling of the terminal user through the USF in the BNG device, reducing the processing burden of the control plane entity CP, and improving communication performance.
  • a first communication interface may be used between the CP and the USF, the CP may send a first message to the USF through the first communication interface, and the USF may use the first communication interface.
  • a communication interface sends the first request message to the CP.
  • the CP and the USF can exchange data through the first communication interface.
  • the first communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the CP and the USF can be aligned through the first communication interface.
  • the content of the messages transmitted by the two improves communication efficiency.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a first The second operation field, and the second operation attribute field.
  • the usable data model in the communication interface between the USF and the CP (for example, the first communication interface), includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the first message sent by the CP to the USF and the first message sent by the USF to the CP may contain the at least three fields, so that the CP and the USF can align the content of the messages transmitted by the two according to the at least three fields to improve Communication efficiency.
  • the first object field includes the user access information and The SLA information
  • the SLA information includes initial SLA information
  • the first operation field includes information indicating that the operation type is user online
  • the second object field includes the user access information
  • the second The operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the CP can indicate to the USF the terminal user to be scheduled through the user access information and SLA information contained in the first object field in the communication interface between the USF and the CP, and use the information contained in the first operation field.
  • the information indicating that the operation type is the user online indicates to the USF to schedule the terminal user to go online; after that, the USF can indicate the currently scheduled terminal to the CP through the user access information in the second object field in the communication interface between the USF and the CP
  • the user instructs the CP to migrate the terminal user online through the information contained in the second operation field indicating that the operation type is the first migration request, and instructs the CP to indicate the terminal user through the identifier of the target UP contained in the second operation attribute field.
  • the user migrates to the target UP, so as to realize the scheduling of the terminal user's online connection in the BNG.
  • the CP updates the SLA of the terminal user.
  • the first object field includes the user access information
  • the SLA information includes update SLA information
  • the first operation field includes information indicating that the operation type is to update the user SLA
  • the second object field includes the user access information
  • the The second operation field includes information indicating that the operation type is the second migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the CP when the CP updates the SLA of the terminal user, the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the USF and the CP. Instruct the USF to update the SLA of the end user through the information contained in the first operation field indicating that the operation type is updating the user’s SLA; after that, the USF can use the in the second object field in the communication interface between the USF and the CP.
  • the user access information indicates the terminal user currently scheduled to the CP, and the information indicating that the operation type is the second migration request contained in the second operation field indicates to the CP that the terminal user is migrated based on the updated SLA, and the second operation attribute field is used.
  • the included identifier of the target UP indicates to the CP to migrate the terminal user to the target UP, so as to realize the scheduling of the terminal user's connection update in the BNG.
  • the user access information includes the migration function entity SF identity ID, the media intervention control layer MAC information, QINQ information, and the initial user plane entity UP ID.
  • different user access information can indicate one or more different terminal users, and the CP can indicate to the USF the one that needs to be scheduled through the SF ID, QINQ information, and initial UP ID included in the user access information.
  • multiple different end users which can indicate to the USF the end users that need to be scheduled through a variety of implementation methods, which improves the flexibility of solution implementation.
  • the user access information further includes at least one of the following: network segment information, group UP ID, and access interface ID.
  • the user access information may also include the SF ID, QINQ information, and initial UP ID. It may include network segment information, group UP ID, and access interface ID, thereby indicating to the USF at least one of scheduling network segment information, group UP ID, and access interface ID, and multiple different terminal users corresponding to it.
  • the BNG further includes a software-defined network SDN controller
  • the method further includes: the USF according to the first message
  • a message can further determine the identity of the target migration function entity SF associated with the end user and the virtual local area network VLAN identity of the end user; after that, the USF sends a second request message to the SDN controller, and the second request message includes The VLAN ID, the ID of the target SF, and the ID of the target UP.
  • the USF may further determine the identity of the target SF and the VLAN identity associated with the end user according to the first message. Thereafter, the USF may pass the identity of the target SF and the target UP by including the VLAN identity, the identity of the target SF and the target UP.
  • the identified second request message instructs the SDN controller to schedule the terminal user corresponding to the VLAN identifier to the target UP on the target SF.
  • the terminal user in the process of scheduling the terminal user to the target UP, the terminal user can be scheduled to the SF sub-interface corresponding to the target UP, and the SDN controller can control the SF to access the terminal users of different SF sub-interfaces in the SF.
  • the USF can schedule the end user to the target UP in the SDN controller with the second request message, so that the BNG device can realize the determination of the end user's scheduling strategy through the USF, and then use the USF to achieve
  • the dynamic scheduling of end users can further reduce the processing burden of the control plane entity CP and improve communication performance.
  • a second communication interface may be used between the USF and the SDN controller, and the USF may send the second request message to the SDN controller through the second communication interface.
  • the USF and the SDN controller can exchange data through a second communication interface.
  • the second communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the USF and the SDN controller can pass through the second communication interface.
  • the communication interface aligns the content of the messages transmitted by the two to improve communication efficiency.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • the usable data model in the communication interface between the USF and the SDN controller (for example, the second communication interface), includes at least three fields, namely, object field, operation field, and operation attribute field.
  • the second request message sent by the USF to the SDN controller may include the at least three fields, so that the USF and the SDN controller can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency .
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is the third migration request
  • the third operation attribute field includes the identifier of the target SF and the identifier of the target UP.
  • the USF may indicate to the SDN controller through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller
  • the terminal user to be scheduled indicates to the SDN controller to migrate the terminal user online through the information contained in the third operation field indicating that the operation type is the third migration request, and through the identification of the target SF contained in the third operation attribute field
  • the identifier of the target UP indicate to the SDN controller to schedule the terminal user to the target UP in the target SF, so as to realize the scheduling of the terminal user's online connection in the BNG.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is the fourth migration request
  • the third operation attribute field includes the identifier of the target SF and the identifier of the target UP.
  • the USF when the USF determines that the connection of the end user needs to be updated according to the first message, the USF can indicate the scheduling to the USF through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller
  • the terminal user in the third operation field indicates to the SDN controller that the terminal user is migrated based on the updated SLA through the information contained in the third operation field indicating that the operation type is the fourth migration request, and the identification of the target SF contained in the third operation attribute field is used
  • the identifier of the target UP indicates to the SDN controller to schedule the terminal user to the target UP in the target SF, so as to realize the scheduling of the terminal user's connection update in the BNG.
  • the third aspect of the embodiments of the present application provides a communication method applied to a software-defined network SDN controller.
  • the SDN controller is included in a broadband network gateway BNG.
  • the BNG also includes a control plane entity CP and a user plane selection function entity USF.
  • the SDN controller receives a second request message from the USF.
  • the second request message includes the virtual local area network VLAN identifier, the target SF identifier, and the target UP identifier, that is, the USF sends the SDN to the SDN through the second request message
  • the controller instructs to schedule the connection between the terminal user corresponding to the VLAN identifier and the target UP in the target SF; then, the SDN controller processes the terminal user corresponding to the VLAN identifier in the target SF according to the second request message The connection with the target UP.
  • the SDN controller receives a second request message from the USF, the second request message includes the terminal user's identity, the target UP identity, and the target SF identity, that is, the USF sends the SDN to the SDN through the second request message.
  • the controller instructs to schedule the connection between the terminal user corresponding to the VLAN ID and the target UP in the target SF. After that, the SDN controller processes the terminal user and the target UP in the target SF according to the second request message. In this way, the SDN controller in the BNG device implements dynamic scheduling of end users through the instructions of the USF, which can reduce the processing burden of the control plane entity CP and improve communication performance.
  • a second communication interface may be used between the USF and the SDN controller, and the USF may send the second request message to the SDN controller through the second communication interface.
  • the USF and the SDN controller can exchange data through a second communication interface.
  • the second communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the USF and the SDN controller can pass through the second communication interface.
  • the communication interface aligns the content of the messages transmitted by the two to improve communication efficiency.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • the data model that can be used includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the USF sends to the SDN controller
  • the second request message may include the at least three fields, so that the USF and the SDN controller can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the third object field includes the VLAN An identifier
  • the third operation field includes information indicating that the operation type is a third migration request
  • the third operation attribute field includes an identifier of the target SF and an identifier of the target UP.
  • the USF can indicate the terminal user to be scheduled to the SDN controller through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller, and through the indication contained in the third operation field
  • the information that the operation type is the third migration request instructs the SDN controller to migrate the terminal user online, and indicates to the SDN controller that the terminal user is in the target SF through the identifier of the target SF and the target UP contained in the third operation attribute field
  • the terminal user is scheduled to the target UP, so as to realize the scheduling of the terminal user's online connection in the BNG.
  • the third object field includes the VLAN An identifier
  • the third operation field includes information indicating that the operation type is a fourth migration request
  • the third operation attribute field includes an identifier of the target SF and an identifier of the target UP.
  • the USF may indicate the terminal user to be scheduled to the USF through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller, and indicate the type of operation contained in the third operation field
  • the information of the fourth migration request indicates to the SDN controller that the end user is migrated based on the updated SLA, and the target SF identifier and the target UP identifier contained in the third operation attribute field are used to indicate to the SDN controller that the terminal user is in the target SF
  • the terminal user is scheduled to the target UP, so as to realize the scheduling of the terminal user's connection update in the BNG.
  • the BNG further includes the target SF, wherein, when the second request message includes information indicating that the operation type is the third migration request, the SDN controller Processing the connection between the terminal user corresponding to the VLAN identifier and the target UP in the target SF according to the second request message includes: the SDN controller sends a third request message to the target SF, and the third request message includes the VLAN The ID and the ID of the target UP.
  • the terminal user in the process of scheduling the terminal user to the target UP, can be scheduled to the SF sub-interface corresponding to the target UP, and the SDN controller can control the SF to access different SF sub-interfaces in the SF.
  • the SDN controller can use the SF of the third request message in the BNG to migrate the end user corresponding to the VLAN identifier to the target UP, so as to realize the end user online in the BNG device .
  • a third communication interface may be used between the SDN controller and the SF, and the SDN controller may send a third request message to the target SF through the third communication interface .
  • the SDN controller and the SF can communicate data through a third communication interface.
  • the third communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the SDN controller and the SF can pass through the second communication interface.
  • the communication interface aligns the content of the messages transmitted by the two to improve communication efficiency.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • the data model that can be used includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the SDN controller sends to the SF
  • the third request message may include the at least three fields, so that the SDN controller and the SF can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the second request message carries information indicating that the operation type is the third migration request.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field includes the target The logo of UP.
  • the SDN controller can indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and through the indication contained in the fourth operation field
  • the information that the operation type is the fifth migration request instructs the SF to migrate the terminal user online, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field, so as to realize the scheduling of the terminal user.
  • the SDN controller updates the terminal user connection, that is, the second request message carries information indicating that the operation type is the fourth migration request.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field includes the target The logo of UP.
  • the SDN controller can indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and through the indication contained in the fourth operation field
  • the information that the operation type is the fifth migration request instructs the SF to migrate the terminal user based on the updated SLA, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field, thereby achieving Schedule the terminal user's connection update in the BNG.
  • the fourth aspect of the embodiments of the present application provides a communication method, which is applied to the migration function entity SF.
  • the SF receives a third request message from the SDN controller, and the third request message includes the identity of the end user and The identifier of the target UP; then, the SF processes the connection between the terminal user and the target UP according to the third request message.
  • the SF may determine the identity of the terminal user and the identity of the target UP according to the third request message sent by the SDN controller, and further process the connection between the terminal user and the target UP according to the third request message, so as to achieve The dynamic scheduling of the connection mode between the end user and the SF in the BNG.
  • a third communication interface may be used between the SDN controller and the SF, and the SDN controller may send a third request message to the target SF through the third communication interface .
  • the SDN controller and the SF can communicate data through a third communication interface.
  • the third communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the SDN controller and the SF can pass through the second communication interface.
  • the communication interface aligns the content of the messages transmitted by the two to improve communication efficiency.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • the usable data model in the communication interface between the SF and the SDN controller, includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the SDN controller sends to the SF
  • the third request message may include the at least three fields, so that the SF and SDN controllers can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the fourth object field includes all According to the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field includes the identifier of the target UP.
  • the SDN controller can indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and through the indication contained in the fourth operation field
  • the information that the operation type is the fifth migration request instructs the SF to migrate the terminal user online, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field, so as to realize the scheduling of the terminal user.
  • the fourth object field includes all In the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field includes the identifier of the target UP.
  • the SDN controller can indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and through the indication contained in the fourth operation field
  • the information that the operation type is the fifth migration request instructs the SF to migrate the terminal user based on the updated SLA, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field, thereby achieving Schedule the terminal user's connection update in the BNG.
  • the fifth aspect of the embodiments of the present application provides a communication method, which is applied to a control plane entity CP, the CP is included in a broadband network gateway BNG, and the BNG also includes a user plane selection function entity USF.
  • the CP obtains offline A request message, where the offline request message includes terminal user information, and the terminal user information includes user access information.
  • the CP sends a first message to the USF.
  • the first message includes the first message indicating that the operation type is that the user is offline. Information and the user access information.
  • the CP sends a first message to the USF.
  • the first message includes the first information indicating that the operation type is the user offline and the user access information, and instructs the USF to schedule the terminal user offline according to the terminal user information, and then The USF deletes the connection information corresponding to the end user, so that the storage of the connection information corresponding to the end user is realized through the USF, which can reduce the storage burden of the control plane entity CP and improve the communication performance.
  • the first message may include a first object field, a first operation field, and a first operation attribute field
  • the first request message includes a second object field , The second operation field, and the second operation attribute field.
  • the CP and the USF can communicate through NETCONF, RESTFUL, or other interfaces.
  • the data model that can be used includes at least three fields, namely object Fields, operation fields, and operation attribute fields.
  • the first message sent by the CP to the USF and the first message sent by the USF to the CP may contain the at least three fields, so that the CP and the USF can be based on the at least three fields. Align the content of the messages transmitted by the two to improve communication efficiency.
  • the first object field includes the user access Information;
  • the first operation field includes information indicating that the first operation type is that the user is offline.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information contained in the first object field in the communication interface between the CP and the USF, and through the first indication contained in the first operation field
  • the information that the operation type is that the user goes offline indicates to the USF to schedule the terminal user to go offline.
  • the USF may schedule the terminal user to go offline according to the first message, so as to realize the scheduling of the terminal user's offline connection in the BNG.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID; or,
  • the user access information includes network segment information; or, the user access information includes the group UP ID; or, the user access information includes the access interface ID.
  • different user access information can indicate one or more different terminal users, and the CP can indicate to the USF what needs to be scheduled through the SF ID, QINQ information, and initial UP ID included in the user access information.
  • One or more different end users can thereby indicate to the USF the end users that need to be scheduled through multiple implementations, which improves the flexibility of solution implementation.
  • the user access information further includes at least one of the following: network segment information, group UP ID, and access interface ID.
  • the user access information may also include the SF ID, QINQ information, and initial UP ID. It may include network segment information, group UP ID, and access interface ID, thereby indicating to the USF at least one of scheduling network segment information, group UP ID, and access interface ID, and multiple different terminal users corresponding to it.
  • the sixth aspect of the embodiments of the present application provides a communication method, which is applied to a user plane selection function entity USF.
  • the USF is included in a broadband network gateway BNG.
  • the BNG also includes a control plane entity CP and a software-defined network SDN controller.
  • the USF receives a first message from the CP, and the first message includes the first information indicating that the operation type is the user offline and the user access information; then, the USF according to the The first message USF deletes the connection information corresponding to the terminal user. Therefore, the storage of the connection information corresponding to the end user through the USF can reduce the storage burden of the control plane entity CP and improve the communication performance.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a first The second operation field, and the second operation attribute field.
  • the USF and the CP can communicate through NETCONF, RESTFUL or other interfaces.
  • the data model that can be used includes at least three fields, namely object Fields, operation fields, and operation attribute fields.
  • the first message sent by the CP to the USF and the first message sent by the USF to the CP may contain the at least three fields, so that the CP and the USF can be based on the at least three fields. Align the content of the messages transmitted by the two to improve communication efficiency.
  • the first object field includes the user access Information;
  • the first operation field includes information indicating that the first operation type is that the user is offline.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information contained in the first object field in the communication interface between the CP and the USF, and through the first indication contained in the first operation field
  • the information that the operation type is that the user is offline indicates to the USF to schedule the terminal user offline.
  • the USF can schedule the terminal user offline according to the first message, that is, the USF deletes the connection information corresponding to the terminal user, thereby realizing the scheduling of the terminal user.
  • the seventh aspect of the embodiments of the present application provides a control plane entity CP.
  • the CP has the function of implementing the method of any one of the foregoing first aspect or the first aspect, or the CP has the capability of implementing the foregoing fifth aspect or the first aspect.
  • the function of any one of the five specific implementation methods. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, for example: a receiving unit, a sending unit, a processing unit, and so on.
  • the eighth aspect of the embodiments of the present application provides a user plane selection function entity USF.
  • the USF has the function of implementing the second aspect or any one of the specific implementation methods of the second aspect, or the CP has the ability to implement the sixth aspect. Or the function of any specific implementation method of the sixth aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, for example: a receiving unit, a sending unit, a processing unit, and so on.
  • a ninth aspect of the embodiments of the present application provides a software-defined network SDN controller.
  • the SDN controller has the function of implementing the third aspect or any specific implementation method of the third aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, for example: a receiving unit, a sending unit, a processing unit, and so on.
  • the tenth aspect of the embodiments of the present application provides a migration function entity SF, which has the function of implementing the method of the fourth aspect or any specific implementation manner of the fourth aspect.
  • This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions, for example: a receiving unit, a sending unit, a processing unit, and so on.
  • the eleventh aspect of the embodiments of the present application provides a control plane entity CP.
  • the CP includes at least one processor, a memory, and computer-executable instructions that are stored in the memory and run on the processor.
  • the computer-executed instructions are When the processor executes, the processor executes the method described in the first aspect or any one of the specific implementation manners of the first aspect, or the processor executes any of the fifth aspect or the fifth aspect. A specific implementation of the method described.
  • the twelfth aspect of the embodiments of the present application provides a user plane selection function entity USF.
  • the USF includes at least one processor, a memory, and computer-executable instructions that are stored in the memory and run on the processor, and are executed on the computer.
  • the processor executes the method described in the second aspect or any specific implementation manner of the second aspect, or the processor executes the method as described in the sixth aspect or the sixth aspect. Any one of the specific implementation methods described in the aspect.
  • the thirteenth aspect of the embodiments of the present application provides a software-defined network SDN controller.
  • the SDN controller includes at least one processor, a memory, and computer-executable instructions stored in the memory and running on the processor.
  • the processor executes the method described in the third aspect or any one of the specific implementation manners of the third aspect.
  • the fourteenth aspect of the embodiments of the present application provides a migration function entity SF.
  • the SF includes at least one processor, a memory, and computer-executable instructions that are stored in the memory and run on the processor.
  • the computer-executed instructions are When the processor executes, the processor executes the method described in the foregoing fourth aspect or any one of the specific implementation manners of the fourth aspect.
  • a fifteenth aspect of the embodiments of the present application provides a broadband network gateway BNG.
  • the BNG includes the control plane entity CP in the seventh aspect and the user plane selection function entity USF in the eighth aspect.
  • the BNG further includes the software-defined network SDN controller in the ninth aspect.
  • the BNG further includes the migration function entity SF in the tenth aspect.
  • a sixteenth aspect of the embodiments of the present application provides a computer-readable storage medium storing one or more computer-executable instructions.
  • the processor executes the above-mentioned first aspect to the first aspect.
  • the seventeenth aspect of the embodiments of the present application provides a computer program product storing one or more computer-executable instructions.
  • the processor executes the first to sixth aspects. The method described in any one of the aspects or in any specific implementation manner thereof.
  • the eighteenth aspect of the embodiments of the present application provides a chip system
  • the chip system includes a processor
  • the processor may include an application processor baseband processor (BP, baseband processor), for example, the processor may also include (AP, application processor), used to support the communication device to implement any one of the foregoing first to sixth aspects or the method described in any one of the specific implementation manners.
  • the chip system may also include a memory, which is used to store necessary program instructions and data.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • the seventh, eleventh, fifteenth to eighteenth aspects, or the technical effects brought by any of the specific implementations can be referred to the technologies brought by the first aspect or the different specific implementations of the first aspect The effect is not repeated here, or, you can refer to the technical effect brought by the fifth aspect or the different specific implementation manners of the fifth aspect, and the details are not repeated here.
  • the technical effects brought by the eighth, twelfth, fifteenth to eighteenth aspects or any one of the specific implementation manners can be referred to the technical effects brought by the second aspect or the different specific implementation manners of the second aspect It will not be repeated here, or, refer to the technical effects brought by the sixth aspect or different specific implementation manners of the sixth aspect, which will not be repeated here.
  • the technical effects brought by the ninth, thirteenth, fifteenth to eighteenth aspects or any of the specific implementation methods can be referred to the technical effects brought by the third aspect or the different specific implementation methods of the third aspect , I won’t repeat it here.
  • the CP sends a first message to the USF, the first message includes terminal user information, and the terminal user information includes user access information and service level agreement SLA information; Then, the CP receives a first request message from the USF, the first request message includes the identifier of the target UP, and the target UP is associated with the end user, that is, instructs to schedule the end user according to the target UP; The identification of the target UP handles the connection between the end user and the target UP.
  • the CP sends a first message to the USF.
  • the first message includes terminal user information and instructs the USF to schedule the terminal user according to the terminal user information.
  • the CP sends a message according to the target UP carried in the first request message sent by the USF.
  • the identification determines that the terminal user is scheduled to the target UP, that is, the scheduling strategy of the terminal user is determined through the USF.
  • the CP further processes the connection between the terminal user and the target UP according to the target UP identifier, thereby
  • the USF is used to determine the scheduling strategy of the terminal user, which reduces the processing burden of the control plane entity CP and improves the communication performance.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the application
  • FIG. 2 is another schematic diagram of a network architecture according to an embodiment of the application.
  • FIG. 3 is a schematic diagram of an embodiment of a communication method according to an embodiment of this application.
  • FIG. 4 is another schematic diagram of an embodiment of a communication method according to an embodiment of this application.
  • FIG. 5 is another schematic diagram of an embodiment of a communication method according to an embodiment of this application.
  • FIG. 6 is another schematic diagram of an embodiment of a communication method according to an embodiment of this application.
  • FIG. 7 is a schematic diagram of an embodiment of a control plane entity CP according to an embodiment of this application.
  • FIG. 8 is a schematic diagram of an embodiment of a user plane selection function entity USF according to an embodiment of this application.
  • FIG. 9 is a schematic diagram of an embodiment of a software-defined network SDN controller according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of an embodiment of an access network element SF according to an embodiment of this application.
  • FIG. 11 is a schematic diagram of an embodiment of a communication device according to an embodiment of the application.
  • FIG. 12 is a schematic diagram of an embodiment of a broadband network gateway BNG according to an embodiment of the application.
  • the embodiments of the present application provide a communication method and related equipment, which are used to implement the determination of the scheduling strategy of the terminal user through the USF in the BNG equipment, reduce the processing burden of the control plane entity CP, and improve the communication performance.
  • BNG as a traditional broadband access gateway device, is very important in user broadband access services and scenarios.
  • user authentication, access control, user scheduling, etc. are implemented for terminal users accessing the BNG device through the CP.
  • FIG. 1 is a schematic diagram of a network architecture when dynamic scheduling of terminal user connections is implemented in a broadband network gateway BNG in an embodiment of the application, where the broadband network gateway BNG100 may include a control plane entity CP101 and a user plane entity 102.
  • the broadband network gateway BNG100 may include a control plane entity CP101 and a user plane entity 102.
  • CP101 control plane entity
  • CP101 user plane entity 102
  • there can be multiple interface implementations between UP102 and CP101 there are the following three interfaces, which are:
  • PRi Service interface, using virtual extensible local area network generic protocol extension (VXLAN GPE) interface, UP receives the user access protocol message, and encapsulates it through this interface and sends it to CP for processing;
  • VXLAN GPE virtual extensible local area network generic protocol extension
  • Mi Management interface, using netconf interface, CP uses this interface to send configuration to UP, and UP uses this interface to report some operating status;
  • SCi Control interface, using the control plane and user plane separated protocol (CUSP) interface.
  • the CP processes user access packets and completes the user protocol interaction. After the user goes online, the CP communicates with the corresponding interface through this interface. UP issues user entries.
  • vBNG virtual broadband network gateway
  • the vBNG includes the virtual broadband network gateway control plane vBNG-CP And vBNG-UP, specifically, vBNG-CP can be used as a virtualized network function (VNF), running on an X86 server to achieve virtualization;
  • VNF virtualized network function
  • vBNG-UP has two forms, one is in the VNF( Virtual UP (virtual user plane, vUP) in X86 server virtualization network element), one is the physical forwarding processing unit (physical user plane, pUP) in the physical network function (physical network function, PNF) (traditional hardware network equipment) ), one vBNG-CP can manage multiple pUPs and vUPs.
  • the current BNG equipment is based on the SDN/NFV architecture to achieve the two decouplings mentioned above.
  • the control plane can manage multiple forwarding planes, and perform users, traffic, and resources between multiple forwarding planes.
  • the utilization rate and reliability of equipment can be greatly improved.
  • the requirements for the number of sessions of users supported by BNG equipment continue to increase, and the bandwidth for user access continues to increase, and the requirements for CP processing performance in current BNG equipment continue to increase accordingly. , Resulting in the CP's processing burden is too heavy, affecting the communication performance.
  • FIG. 2 is another schematic diagram of the network architecture when dynamic scheduling of terminal user connections is implemented in the broadband network gateway BNG in an embodiment of the application.
  • vBNG-UP includes multiple pUPs and vUPs.
  • vBNG- UP includes pUP1 (203), pUP2 (204), vUP3 (205) as an example to illustrate, pUP1 (203), pUP2 (204), vUP3 (205) or other multiple UP can be distributed at the edge of the network, or Distributed in a relatively high position in the network, in order to enable users to dynamically select the UP gateway for access, vBNG-CP needs to cooperate with a software defined network controller (software defined network controller, SDN controller) to realize the dynamic migration of users.
  • SDN controller software defined network controller
  • CP208 is the vBNG service control plane, used to implement user dialing protocol processing, and interact with authentication, authorization, and accounting (Authentication, Authorization, Accounting, AAA) servers for user authentication, accounting, and authorization. Identify the service level agreement (SLA) signed by the user according to the user account, and notify the UP migration function (UP steering function, USF) 207 of the user to go online and wait for the USF to guide the user to migrate through the access line information carried in the user dial protocol To map the user to the corresponding UP access port. At the same time, the CP208 delivers the user entry information to the corresponding UP, generates a forwarding entry for the user corresponding to the UP, and advertises routes to the outside.
  • SLA service level agreement
  • USF UP steering function
  • USF207 The policy control component of UP migration. It generates migration strategies based on the user's SLA and load, and informs CP208 and SF202 to migrate users to achieve network load balance and SLA requirements.
  • vBNG-UP includes pUP1 (203), pUP2 (204), vUP3 (205): vBNG service forwarding plane.
  • the CP finishes processing the user online, it issues a user entry, and the UP receives the user entry issued by the CP208, generates a forwarding entry for the user locally, performs related business policy execution and traffic forwarding, and advertises routes to the outside.
  • SF202 serves as a user access gateway.
  • SF202 can send the user’s dial-up protocol message to the CP through the service channel for processing, and at the same time converge the home terminal, Users converge to UP, forward Layer 2 packets, and isolate users from virtual local area network (VLAN)/double VLAN (802.1Q in 802.1Q, QinQ).
  • VLAN virtual local area network
  • Double VLAN 802.1Q in 802.1Q, QinQ
  • Each user has an exclusive VLAN /QINQ.
  • Access node (AN) 201 A residential terminal (Residential gateway, RGW) can access the BNG device through the AN, where the RGW can be a PC, mobile phone, tablet or other terminal.
  • the AN generally The RGW performs network address translation (NAT) processing, and assigns a private network IP address to the RGW, performs Point-to-Point Protocol Over Ethernet (PPPoE), and Internet Protocol (Internet Protocol) over Ethernet. Protocol over Ethemet, IPoE) dial-up, obtain IP from vBNG, and access the network.
  • NAT network address translation
  • PPPoE Point-to-Point Protocol Over Ethernet
  • Internet Protocol Internet Protocol over Ethernet
  • SDN controller 206 Receive the corresponding user's access line information sent by CP208 through USF207, including the connected switch (SW)/optical line termination (OLT) identity document (ID), and then Incoming port information, vlan information, etc., issue a migration strategy to the corresponding SW/OLT, and map the user’s port + VLAN/QINQ to the layer 2 tunnel connected to the corresponding UP, such as the virtual extensible local area network general protocol extension ( virtual extensive local area network (VXLAN), virtual leased link (virtual leased line, VLL), or ethernet virtual private network (EVPN), etc.
  • VXLAN virtual extensive local area network
  • VLL virtual leased link
  • EVPN ethernet virtual private network
  • AN201 can go online from pUP1 (203) by default, and control messages are sent to CP208.
  • CP208 interacts with USF207 on the user's migration strategy.
  • USF207 determines that it should be connected from pUP2 (204) according to the service level agreement (SLA) of AN201.
  • SLA service level agreement
  • the CP208 is notified to deliver the user entry to pUP2 (204); at the same time, USF207 notifies the SDN controller 206 to configure SF202 and bind the VLAN/QinQ corresponding to the user to the interface corresponding to pUP2 (204)
  • SLA service level agreement
  • USF207 notifies the SDN controller 206 to configure SF202 and bind the VLAN/QinQ corresponding to the user to the interface corresponding to pUP2 (204)
  • the subsequent forwarded packets of AN201 are directly forwarded to pUP2(204), where USF207 is the strategy point for dynamic migration.
  • CP208 asks USF207 whether to migrate, and USF207 informs CP208 and SDN controller 206 to do the migration.
  • This strategy point can be built-in In the CP208, it can also be built into the SDN controller 206, or it can be a separate network element.
  • an embodiment of a communication method in the embodiment of the present application includes:
  • the CP sends a first message to the USF
  • the CP sends a first message to the USF.
  • the USF obtains the first message in step 301, where the first message includes terminal user information and is used to instruct the USF to schedule according to the terminal user information.
  • the terminal user information includes user access information.
  • the terminal user information may also include service level agreement SLA information.
  • the CP is included in a broadband network gateway BNG, and the BNG also includes USF, as shown in the network architecture of FIG. 2.
  • the BNG may also include UP, SF, and so on.
  • the CP and the USF can exchange data through a first communication interface.
  • the first communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the CP and the USF can pass through the first communication interface.
  • a communication interface aligns the content of the messages transmitted by the two to improve communication efficiency.
  • the first message may include a first object field, a first operation field, and a first operation attribute field.
  • the CP and the USF can communicate through NETCONF, RESTFUL or other interfaces.
  • the data model that can be used includes at least three fields, namely, object fields and operations.
  • Field, operation attribute field where the object field is used to indicate the identification of the terminal user corresponding to the operation of the transmitted message, the operation field is used to indicate the operation type of the operation corresponding to the transmitted message, and the operation attribute field is used to indicate the operation of the transmitted message. Operate the port.
  • the first message sent by the CP to the USF can include the at least three fields, so that the CP and the USF can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the message sent by the CP to the USF includes the first object field, the first operation field, and the first operation attribute field.
  • the message sent by the USF to the CP includes the second object field and the first operation attribute field.
  • the second operation field and the second operation attribute field are taken as an example for description.
  • alignment refers to the determination of the carrier frequency of the interactive message sending and receiving, the type of the interactive message, and the determination of the interactive message when there are interactive messages between different communication devices through wired or wireless interfaces.
  • the meaning of the carried field information or other configurations of the interactive message is consistent with the understanding.
  • the CP and the USF can make the CP and the USF have the same understanding of the meaning of the field information carried by the "at least three fields” according to the "at least three fields" carried in the messages transmitted by the two interfaces.
  • the data model adopted by the communication interface between CP and USF may be as shown in FIG. 4.
  • objects 401, operation 402, and operation The attribute 403 is an example for description.
  • the at least three fields can also be replaced by other names.
  • the object field, the operation field, and the operation attribute field can be expressed through the terminal, implementation, and implementation attributes.
  • Fields B and C indicate object fields, operation fields, and operation attribute fields.
  • Object fields, operation fields, and operation attribute fields can also be expressed in other ways, which are not limited here.
  • the object 401 may carry user access information
  • the user access information includes the migration function entity SF identity ID, QINQ information
  • the initial user plane entity UP ID optionally, the user access information may also include media intervention control layer MAC information.
  • the user access information also includes at least one of the following: network segment information, group UP ID, and access interface ID (for example, a single user indicated by object 401: SF ID/MAC/QINQ/IP/SLA/Access-interface ID).
  • the user access information in addition to the SF ID, QINQ information, and initial UP ID, when it is necessary to instruct the USF to schedule multiple different terminal users, the user access information may also include the network The segment information, the group UP ID, and the access interface ID, thereby indicating to the USF at least one of the scheduling network segment information, the group UP ID, and the access interface ID, and multiple different terminal users corresponding to it.
  • the user access information includes network segment information (a group of users with the same network segment: including gateway and mask); and/or, the user access information includes group UP ID (a group of users with the same UP User); and/or, the user access information includes an access interface ID (a group of users with the same access interface).
  • USF can access one or more different end users scheduled by different user access information, so that it can pass multiple
  • the implementation mode instructs the USF to schedule terminal users based on the terminal user information, which improves the flexibility of solution implementation.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes initial SLA information.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF. Instruct the USF to schedule the terminal user to go online through the information (user online) contained in the first operation field indicating that the operation type is user online.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes update SLA information.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF Instruct the USF to update the SLA of the terminal user through the information (SLA update) included in the first operation field indicating that the operation type is to update the user's SLA.
  • the first object field includes the user access information;
  • the first operation field includes the first indication that the operation type is user downloading Online information (user offline).
  • the CP can indicate the terminal user to be scheduled to the USF in the communication interface between the CP and the USF through the user access information contained in the first object field, and use the first instruction operation contained in the first operation field.
  • the type of user offline information indicates to the USF to schedule the terminal user to go offline.
  • the CP can also determine that step 301 needs to be performed in a variety of ways, that is, there is a triggering process in step 301.
  • the triggering process can be that the CP receives a remote authentication dial-up.
  • User server remote access dial-in user service, RADIUS
  • RADIUS remote access dial-in user service
  • AAA server AAA server
  • This triggering process can also be the process that the CP receives from The request message of the terminal user, that is, the CP receives the request message sent from the terminal user through the AN201 in the network architecture shown in Figure 2 to trigger the execution of step 301.
  • the CP can also implement the triggering process in other ways, which is not limited here. .
  • the USF determines the target UP associated with the end user
  • the USF according to the terminal user information obtained in step 301 instructs the USF to schedule the terminal user according to the terminal user information, and the USF further determines the target UP associated with the terminal user according to the terminal user information.
  • USF is the strategy control component for UP migration. It can generate migration strategies based on the end user's SLA and load, and notify CP and SF to migrate users, so as to achieve network load balance and SLA requirements to perform corresponding scheduling, such as USF can manage multiple vBNG-UPs, including pUP1 (203), pUP2 (204), and vUP3 (205) as shown in Figure 2. USF can allocate corresponding SLA information to different vBNG-UPs one by one in advance, that is, create multiple The mapping relationship between the vBNG-UP identifier and multiple SLAs.
  • the different operation fields identified in the operation 402 can correspond to different scenarios.
  • the USF according to the specific information of the first message sent by the CP
  • the content can determine the target UP associated with the end user in a variety of ways, which will be described in detail below:
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF , Instruct the USF to schedule the terminal user to go online through the information indicating that the operation type is that the user goes online contained in the first operation field.
  • the USF determines the UP corresponding to the initial SLA information as the target UP through the mapping relationship between multiple vBNG-UP identities and multiple SLAs.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the CP and the USF Instruct the USF to update the SLA of the terminal user through the information indicating that the operation type included in the first operation field is to update the user's SLA.
  • the USF determines the UP corresponding to the updated SLA information as the target UP through the mapping relationship between multiple vBNG-UP identities and multiple SLAs.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information contained in the first object field in the communication interface between the CP and the USF.
  • the information contained in the first operation field indicating that the first operation type is that the user goes offline instructs the USF to schedule the terminal user to go offline.
  • the USF determines the current UP of the terminal user who needs to be scheduled to go offline corresponding to the user access information as the target UP. Thereafter, after the USF determines the target UP associated with the end user in step 302, the USF deletes the connection information corresponding to the end user.
  • connection information corresponding to the end user may be the user associated with the end user stored in the USF Access information and/or SLA information, so that the storage of the connection information corresponding to the end user through the USF can reduce the storage burden of the control plane entity CP and improve the communication performance.
  • different user access information may indicate one or more different terminal users.
  • the USF may determine the target UP ID of one or more different terminal users in a one-to-one correspondence according to the different user access information.
  • the USF sends the first request message to the CP.
  • the USF may send a first request message to the CP, where the first request message contains the identifier of the target UP and is used to instruct the CP to handle the terminal user Connect with the target UP.
  • the SF202 device is added behind the AN201 access network, and a Layer 2 tunnel is established between the device and the UP.
  • the physical interface that SF202 and AN201 access are divided into different sub-interfaces.
  • the interfaces match different VLAN/QinQ ranges, that is, different sub-interfaces correspond to different Layer 2 UP tunnels, and end users access different UPs through different SFs. Therefore, in the implementation process of step 303, the identifier of the target UP is used to identify the UP. For specific implementation, it may be the identifier of the target UP itself, or through the SF subinterface identifier corresponding to the target UP. There is no limit.
  • the different operation fields identified in operation 402 can correspond to different scenarios.
  • the USF can also send the first request message to the CP.
  • Different operation fields are used to identify different scenarios, which will be described in detail below:
  • the second object field includes the user access information
  • the second operation field includes an indication that the operation type is the first migration request Information (steering request)
  • the second operation attribute field includes the identifier of the target UP.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the USF and the CP.
  • the information contained in the first operation field indicating that the operation type is that the user is online indicates to the USF to schedule the terminal user to go online; after that, the USF can be in the communication interface between the USF and the CP, that is, in the first request message sent in step 303, Indicate the currently scheduled terminal user to the CP through the user access information in the second object field, and instruct the CP to migrate the terminal user online through the information contained in the second operation field indicating that the operation type is the first migration request.
  • the identifier of the target UP included in the second operation attribute field indicates to the CP to migrate the terminal user to the target UP.
  • the first operation field includes information indicating that the operation type is to update the user's SLA; in the first request message, the second object field includes the user's access Enter information, the second operation field includes information indicating that the operation type is a second migration request (steering request), and the second operation attribute field includes the identifier of the target UP.
  • the CP can indicate the terminal user to be scheduled to the USF through the user access information and SLA information contained in the first object field in the communication interface between the USF and the CP.
  • the USF Instruct the USF to update the SLA of the terminal user through the information contained in the first operation field indicating that the operation type is to update the user's SLA; after that, the USF can be in the communication interface between the USF and the CP, that is, the first request sent in step 303
  • the user access information in the second object field is used to indicate the currently scheduled terminal user to the CP
  • the information contained in the second operation field indicating that the operation type is the second migration request is used to indicate to the CP that the terminal user is based on the update
  • the SLA is migrated
  • the target UP identifier included in the second operation attribute field is used to instruct the CP to migrate the terminal user to the target UP.
  • the first object field includes the user access information; the first operation field includes the first indication that the operation type is user downloading Line information.
  • the USF determines the current UP of the terminal user who needs to be scheduled offline corresponding to the user access information as the target UP.
  • the first request message sent by the USF to the CP in step 303 can be a notification message. In order to notify the CP that the USF has deleted the connection information corresponding to the terminal device, in addition, step 303 may not be performed when it is applied to the scenario where the CP schedules the terminal user to go offline.
  • the CP handles the connection between the terminal user and the target UP;
  • the CP after the CP obtains the identifier of the target UP in step 303, it can further process the connection between the terminal user and the target UP according to the identifier of the target UP.
  • CP208 is the vBNG service control plane. It processes the user dialing protocol and interacts with the AAA server for user authentication, accounting, and authorization.
  • the SLA can be identified according to the user account, and the user dialing protocol can be used.
  • the access line information carried in the USF207 informs the user to go online and wait for the USF to guide the user to migrate, and map the user to the corresponding UP access port.
  • the CP208 delivers the user entry information to the corresponding UP, generates a forwarding entry for the user corresponding to the UP, and advertises routes to the outside.
  • the CP processing the connection between the terminal user and the target UP according to the identifier of the target UP may specifically include: the CP sends to the target UP The identification of the terminal user, so that the target UP knows the terminal user is scheduled, and the dynamic scheduling between the terminal user and the target UP is processed.
  • step 304 when the CP processes the connection between the terminal user and the target UP, the terminal user can be scheduled to the SF sub-interface corresponding to the target UP, and the SF pair can be controlled by the SDN controller.
  • the terminal users accessing different SF sub-interfaces in the SF are scheduled. Therefore, the CP can send the corresponding message to the SDN controller to schedule the terminal user to the target UP, so as to implement the terminal user scheduling strategy in the BNG device through the USF
  • the dynamic scheduling of the end user is realized through the CP, which can reduce the processing burden of the control plane entity CP to a certain extent and improve the communication performance.
  • the CP sends a first response message to the USF.
  • the CP may send a first response message to the USF.
  • the first response message (steering ack) is used to indicate that the CP has processed the terminal user The connection with the target UP.
  • step 305 is an optional step.
  • the CP sends a first message to the USF.
  • the first message includes terminal user information and instructs the USF to follow the terminal.
  • the user information schedules the terminal user, and then the CP determines to schedule the terminal user to the target UP according to the identifier of the target UP carried in the first request message sent by the USF, that is to say, determines the scheduling strategy of the terminal user through the USF
  • the CP further processes the connection between the terminal user and the target UP according to the target UP identifier, so that the terminal user’s scheduling strategy can be determined through the USF in the BNG device, reducing the processing burden of the control plane entity CP, and improving Communication performance.
  • the USF determines the target SF associated with the end user
  • the USF after receiving the first message from the CP in step 301, the USF further determines the target SF associated with the terminal user according to the user access information carried in the first message.
  • a SF202 device is added behind the AN201 access network, and a Layer 2 tunnel is established between the device and the UP.
  • the physical interface for SF202 and AN201 access is divided into different sub-interfaces.
  • the sub-interfaces match different VLAN/QinQ ranges, that is, different sub-interfaces correspond to different Layer 2 UP tunnels, and end users access different UPs through different SFs. Therefore, the USF can determine the target SF associated with the terminal user according to the user access information carried in the first message obtained in step 301.
  • the first message from the CP in step 301 can carry the identity of the target SF.
  • the identity of the target SF is carried in other messages sent by the CP to the USF, or the mapping relationship between the terminal user and the SF is preset in the USF, and the USF determines the target SF in the mapping relationship ,
  • the target SF associated with the end user can also be determined in other ways, which is not limited here.
  • step 306 needs to be performed after step 301, and there is no inevitable sequence relationship with step 302 to step 305, which is not limited here.
  • the USF sends a second request message to the SDN controller.
  • the USF sends a second request message to the SDN controller, where the USF can further determine the identity of the target migration function entity SF associated with the terminal user according to the first message obtained in step 301, and the terminal user’s virtual Local area network VLAN ID; after that, the USF sends a second request message to the SDN controller, the second request message including the VLAN ID, the target SF ID, and the target UP ID.
  • the user access information can indicate one or more end users.
  • the VLAN identifier determined by the first message can also correspond to one or more End user.
  • the identifier of the target UP is used to identify the target UP. In specific implementation, it may be the identifier of the target UP itself, or through the SF subinterface identifier corresponding to the target UP. , There is no limitation here.
  • the SF sub-interface corresponding to the target UP is used as the identifier of the target UP as an example for description. At this time, the SF sub-interface corresponding to the target UP is included in the target SF.
  • the second request message may also include an identifier of the source UP of the terminal device, which is used to indicate to the SDN controller that the terminal user corresponding to the VLAN identifier in the target SF is corresponding to the source UP identifier.
  • UP transfer similarly, the identity of the source UP is used to identify the UP that the terminal device originally accessed, here it can be the identity of the source UP itself, or it can be through the source SF sub-interface identification corresponding to the source UP. There is no limitation here.
  • the data exchange between the USF and the SDN controller can be performed through a second communication interface.
  • the first communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the USF and the SDN controller The content of the messages transmitted by the two can be aligned through the second communication interface to improve communication efficiency.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • the USF and the SDN controller can communicate through NETCONF, RESTFUL or other interfaces, where the object field is used to indicate the identification of the end user corresponding to the operation of the transmitted message, and the operation field is used to indicate the transmitted message
  • the operation type and operation attribute fields of the corresponding operation are used to indicate the operation port of the operation corresponding to the transmitted message.
  • the usable data model includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the second data model sent by the USF to the SDN controller may include the at least three fields, so that the USF and the SDN controller can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the message sent by the USF to the SDN controller includes the third object field, the third operation field, and the third operation attribute field as an example for description.
  • alignment refers to the determination of the carrier frequency of the interactive message sending and receiving, the type of the interactive message, and the determination of the interactive message when there are interactive messages between different communication devices through wired or wireless interfaces.
  • the meaning of the carried field information or other configurations of the interactive message is consistent with the understanding.
  • the USF and SDN controller can make the USF and SDN controller understand the meaning of the field information carried by the "at least three fields” based on the "at least three fields" carried in the messages transmitted by the two interfaces. Consistent understanding.
  • the data model adopted by the communication interface between the USF and the SDN controller may be as shown in FIG. 5.
  • objects 501, Operation 502 and operation attribute 503 are examples for description.
  • the at least three fields can also be replaced by other names.
  • object fields, operation fields, and operation attribute fields can be represented by terminal, implementation, and implementation attributes.
  • the A field, the B field, and the C field are used to indicate the object field, the operation field, and the operation attribute field.
  • the object field, the operation field, and the operation attribute field can also be expressed in other ways, which are not limited here.
  • the object 501 (that is, the object field) may carry a VLAN identifier.
  • the application of the different operation fields identified in operation 502 to different scenarios will be described below:
  • the USF can indicate the terminal to be scheduled to the SDN controller through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller
  • the user through the information (steering request) contained in the third operation field indicating that the operation type is the third migration request, instructs the SDN controller to migrate the terminal user online, and through the identification of the target SF contained in the third operation attribute field
  • the identifier of the target UP indicate to the SDN controller to schedule the terminal user to the target UP in the target SF (source interface attribute: SF ID, SF side sub-interface ID, which can indicate the source interface of the operation; destination interface attribute: The target SF ID, the SF side sub-interface ID, can indicate the destination interface of the operation).
  • the USF can indicate the end user to be scheduled to the USF through the VLAN identifier contained in the third object field in the communication interface between the USF and the SDN controller. Instruct the SDN controller to migrate the end user based on the updated SLA through the information (steering request) contained in the third operation field indicating that the operation type is the fourth migration request, and through the identification of the target SF contained in the third operation attribute field And the identifier of the target UP indicate to the SDN controller to schedule the terminal user to the target UP in the target SF (source interface attribute: SF ID, SF side sub-interface ID, which can indicate the source interface of the operation; destination interface attribute: The target SF ID, the SF side sub-interface ID, can indicate the destination interface of the operation).
  • the terminal user in the process of scheduling the terminal user to the target UP, the terminal user can be scheduled to the SF sub-interface corresponding to the target UP, and the SDN controller can control the SF to access different SF sub-interfaces in the SF. Therefore, the USF can schedule the end user to the target UP in the SDN controller with the second request message, so that the BNG device realizes the determination of the end user scheduling strategy through the USF, and then passes The USF realizes dynamic scheduling of end users, which can further reduce the processing burden of the control plane entity CP and improve communication performance.
  • the SDN controller sends a third request message to the SF.
  • the SDN controller processes the communication between the terminal user corresponding to the VLAN ID and the target UP in the target SF according to the second request message. connect.
  • the VLAN identifier can correspondingly identify one or more end users.
  • the SDN controller processes the connection between the terminal user corresponding to the VLAN identifier and the target UP in the target SF according to the second request message.
  • the SDN controller may generate a third request message and send it to the SF. Sent, where the third request message includes the VLAN identification of the end user and the identification of the target UP.
  • the BNG may also include a migration function entity SF.
  • SF migration function entity
  • the connection between the user and the target UP can be implemented through step 308 to step 310.
  • the SDN controller and the SF can exchange data through a third communication interface.
  • the first communication interface can include NETCONF, RESTFUL or other communication interfaces, so that the SDN controller and the SF The controller can align the content of the messages transmitted by the two through the third communication interface to improve communication efficiency.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • the SDN controller and the SF can communicate through NETCONF, RESTFUL, or other interfaces, where the object field is used to indicate the identification of the end user corresponding to the operation of the transmitted message, and the operation field is used to indicate the transmitted message
  • the operation type and operation attribute fields of the corresponding operation are used to indicate the operation port of the operation corresponding to the transmitted message.
  • the data model that can be used includes at least three fields, namely, the object field, the operation field, and the operation attribute field.
  • the third The request message may include the at least three fields, so that the SDN controller and the SF can align the content of the messages transmitted by the two according to the at least three fields, thereby improving communication efficiency.
  • the message sent by the SDN controller to the SF includes the fourth object field, the fourth operation field, and the fourth operation attribute field as an example for description.
  • alignment refers to the determination of the carrier frequency of the interactive message sending and receiving, the type of the interactive message, and the determination of the interactive message when there are interactive messages between different communication devices through wired or wireless interfaces.
  • the meaning of the carried field information or other configurations of the interactive message is consistent with the understanding.
  • the SDN controller and the SF can make the SDN controller and the SF determine the meaning of the field information carried by the "at least three fields” according to the "at least three fields" carried in the messages transmitted by the two interfaces. Consistent understanding.
  • the data model adopted by the communication interface between the SDN controller and the SF may be as shown in FIG. 6.
  • the object field and the operation field Operation attribute fields are described by taking object 601, operation 602, and operation attribute 603 as examples.
  • the at least three fields can also be replaced by other names.
  • object fields can be represented by terminal, implementation, and implementation attributes.
  • Fields A, B, and C can be used to represent object fields, operation fields, and operation attribute fields.
  • Object fields, operation fields, and operation attribute fields can also be expressed in other ways. Make a limit.
  • the USF may send a different second request message to the SDN controller to support the scheduling of different processes for the terminal user to realize the connection. Therefore, in step 308, the SDN controller may also send a message to the SDN controller in a variety of ways.
  • the SF sends the third request message, which will be described in detail below:
  • the second request message obtained in step 307 carries information indicating that the operation type is the third migration request.
  • the third request message Wherein, the fourth object field includes the VLAN identifier, the fourth operation field includes information indicating that the operation type is a fifth migration request, and the fourth operation attribute field includes the identifier of the target UP.
  • the SDN controller may indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and use the instruction operation contained in the fourth operation field.
  • the information of the fifth migration request type instructs the SF to migrate the terminal user online, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field (source interface attribute: SF ID, SF side sub-interface ID, can indicate the source interface of the operation; destination interface attributes: target SF ID, SF side sub-interface ID, can indicate the destination interface of the operation), so as to realize the scheduling of the terminal user in the BNG Online connection.
  • source interface attribute SF ID, SF side sub-interface ID
  • destination interface attributes target SF ID, SF side sub-interface ID
  • the second request message obtained in step 307 carries information indicating that the operation type is the fourth migration request.
  • the third request message Wherein, the fourth object field includes the VLAN identifier, the fourth operation field includes information indicating that the operation type is the sixth migration request, and the fourth operation attribute field includes the identifier of the target UP.
  • the SDN controller may indicate the terminal user to be scheduled to the SF through the VLAN identifier contained in the fourth object field in the communication interface between the SDN controller and the SF, and use the instruction operation contained in the fourth operation field.
  • the information of the type of the fifth migration request indicates to the SF to migrate the terminal user based on the updated SLA, and instructs the SF to schedule the terminal user to the target UP through the identifier of the target UP contained in the third operation attribute field (source interface attribute : SF ID, SF side sub-interface ID, can indicate the source interface of the operation; destination interface attributes: target SF ID, SF side sub-interface ID, can indicate the destination interface of the operation), so as to realize the scheduling of the terminal user in the BNG Connection updates in.
  • source interface attribute : SF ID, SF side sub-interface ID
  • destination interface attributes target SF ID, SF side sub-interface ID
  • SF handles the connection between the terminal user and the target UP
  • the SF processes the connection between the terminal user and the target UP.
  • the SF includes multiple SF interfaces, including the target UP, and different SF interfaces correspond to different UPs.
  • the execution process of step 309 is specifically that the SF handles the connection between the terminal user and the multiple SF interfaces.
  • the SDN controller may send a different third request message to the SF to support different processes for scheduling the terminal user to realize the connection. Therefore, in step 309, the SF may also be realized through a different third request message.
  • the different scheduling process will be described in detail below:
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes an indication operation type
  • the fourth operation attribute field includes the identifier of the target UP.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes the indication
  • the operation type is the information of the sixth migration request
  • the fourth operation attribute field includes the identifier of the target UP.
  • the SF sends a third response message to the SDN controller.
  • step 310 is an optional step.
  • the SDN controller sends a second response message to the USF.
  • step 311 is an optional step.
  • the terminal user can be scheduled to the SF sub-interface corresponding to the target UP, and the SF pair can be controlled by the SDN controller. Terminal users accessing different SF sub-interfaces in the SF are scheduled. Therefore, the USF can implement the second request message to schedule the terminal user to the target UP in the SDN controller, so as to be in the BNG device (in step 301 to step 305). Middle) On the basis of determining the scheduling strategy of the end user through the USF, and then implementing the dynamic scheduling of the end user through the USF, the processing burden of the control plane entity CP can be further reduced and the communication performance can be improved.
  • the interface and data model between USF/CP/SDN/SF are specifically refined, and users are distinguished according to SLA, which breaks through the limitation of existing network user access gateways.
  • SLA Service-on-Specific SF
  • the problem of distinguishing user SLA on SF through the scheme of the present invention, users can dynamically access different SFs, which not only allows operators to provide differentiated services and obtain more benefits, but also adjusts the load of SFs.
  • control plane entity CP700 in an embodiment of the present application.
  • the control plane entity CP700 may be CP101 in the embodiment shown in FIG. 1, CP208 in the embodiment shown in FIG. 2, and FIG. 3 CP in the embodiment shown.
  • control plane entity CP700 includes:
  • the sending unit 702 is configured to send a first message to the USF, where the first message includes terminal user information, and the terminal user information includes user access information and service level agreement SLA information; please refer to the embodiment shown in FIG. 3 for the specific implementation The detailed description of step 301 in step 301 will not be repeated here.
  • the receiving unit 701 is configured to receive a first request message from the USF, where the first request message includes the identifier of the target UP, and the target UP is associated with the terminal user; for the specific implementation, please refer to step 303 in the embodiment shown in FIG. 3 The detailed description will not be repeated here.
  • the processing unit 703 is configured to process the connection between the terminal user and the target UP according to the identifier of the target UP.
  • the processing unit 703 is configured to process the connection between the terminal user and the target UP according to the identifier of the target UP.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second operation attribute field.
  • a second object field For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes initial SLA information
  • the first operation field includes information indicating that the operation type is user online
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes update SLA information
  • the first operation field includes information indicating that the operation type is update user SLA
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is a second migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • control plane entity CP700 includes:
  • the receiving unit 701 is configured to obtain a logoff request message, where the logoff request message includes terminal user information, and the terminal user information includes user access information;
  • the sending unit 702 is configured to send a first message to the USF, where the first message includes the first information indicating that the operation type is that the user is offline and the user access information.
  • the first message includes the first information indicating that the operation type is that the user is offline and the user access information.
  • the first message may include a first object field, a first operation field, and a first operation attribute field
  • the first request message includes a second object field, a second operation field, and a first operation field.
  • Operational attribute fields For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information; the first operation field includes the first information indicating that the operation type is that the user is offline.
  • the first object field includes the user access information; the first operation field includes the first information indicating that the operation type is that the user is offline.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • a user plane selection function entity USF800 in the embodiment of the present application.
  • the USF800 may be the USF207 in the embodiment shown in FIG. 2 and the USF in the embodiment shown in FIG. 3.
  • the user plane selection function entity USF800 may include:
  • the receiving unit 801 is configured to receive a first message from the CP, the first message includes terminal user information, and the terminal user information includes user access information and service level agreement SLA information; please refer to the implementation shown in Figure 3 for specific implementation The detailed description of step 301 in the example will not be repeated here.
  • the processing unit 803 is configured to determine the target UP associated with the terminal user according to the first message; for a specific implementation manner, please refer to the detailed description of step 302 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the sending unit 802 is configured to send a first request message to the CP, where the first request message includes the identifier of the target UP.
  • the first request message includes the identifier of the target UP.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second operation attribute field.
  • a second object field For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes initial SLA information
  • the first operation field includes an indication that the operation type is User online information
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes update SLA information
  • the first operation field includes an indication that the operation type is Update user SLA information
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the second migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the BNG also includes a software-defined network SDN controller,
  • the processing unit 803 is further configured to determine the identity of the target migration function entity SF associated with the terminal user and the virtual local area network VLAN identity of the terminal user according to the first message; please refer to the embodiment shown in FIG. 3 for specific implementation The detailed description of step 306 will not be repeated here.
  • the sending unit 802 is further configured to send a second request message to the SDN controller, where the second request message includes the VLAN identifier, the target SF identifier, and the target UP identifier.
  • the second request message includes the VLAN identifier, the target SF identifier, and the target UP identifier.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • a third object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 5, which will not be repeated here.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a third migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a fourth migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the USF800 includes:
  • the receiving unit 801 is configured to receive a first message from the CP, the first message including the first information indicating that the operation type is the user offline and the user access information; please refer to the embodiment shown in FIG. 3 for the specific implementation The detailed description of step 301 will not be repeated here.
  • the processing unit 803 is configured to determine, according to the first message, the target UP associated with the terminal user, the identifier of the target migration function entity SF associated with the terminal user, and the virtual local area network VLAN identifier of the terminal user; for specific implementation methods, please Refer to the detailed description of step 302 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the processing unit 803 is further configured to delete the connection information corresponding to the terminal user.
  • the processing unit 803 is further configured to delete the connection information corresponding to the terminal user.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second Operational attribute field.
  • the first object field includes the user access information; the first operation field includes The first indication operation type is information indicating that the user is offline.
  • the first indication operation type is information indicating that the user is offline.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the SDN controller 900 may be the SDN controller 206 in the embodiment shown in FIG. 2 and the SDN controller 206 in the embodiment shown in FIG. SDN controller.
  • the SDN controller 900 may include:
  • the transceiving unit 901 is configured to receive a second request message from the USF.
  • the second request message includes the virtual local area network VLAN identifier, the target SF identifier, and the target UP identifier; for specific implementation, please refer to the steps in the embodiment shown in FIG. 3 The detailed description of 307 will not be repeated here.
  • the processing unit 902 is configured to process the connection between the terminal user corresponding to the virtual local area network VLAN identifier and the target UP in the target SF according to the second request message.
  • the processing unit 902 is configured to process the connection between the terminal user corresponding to the virtual local area network VLAN identifier and the target UP in the target SF according to the second request message.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • a third object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 5, which will not be repeated here.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a third migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is the fourth migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the BNG further includes the target SF
  • the SDN controller processes the connection between the terminal user corresponding to the virtual local area network VLAN identifier and the target UP in the target SF according to the second request message include:
  • the SDN controller sends a third request message to the target SF, where the third request message includes the VLAN identifier and the target UP identifier.
  • the third request message includes the VLAN identifier and the target UP identifier.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • a fourth object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 6, which will not be repeated here.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field Include the identifier of the target UP.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field Include the identifier of the target UP.
  • the migration function entity SF1000 may be the SF202 in the embodiment shown in FIG. 2 and the SF in the embodiment shown in FIG. 3.
  • the SF1000 may include:
  • the transceiver unit 1001 is configured to receive a third request message from the SDN controller.
  • the third request message includes the identification of the terminal user and the identification of the target UP; for the specific implementation, please refer to the detailed description of step 308 in the embodiment shown in FIG. 3 , I won’t repeat it here.
  • the processing unit 1002 is configured to process the connection between the terminal user and the target UP according to the third request message.
  • the processing unit 1002 is configured to process the connection between the terminal user and the target UP according to the third request message.
  • step 309 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • a fourth object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 6, which will not be repeated here.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field Include the identification of the target UP.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field Include the identification of the target UP.
  • FIG. 11 is a schematic diagram of a specific logical structure of the communication device 1100 involved in the foregoing embodiments provided by the embodiments of this application.
  • the communication device 1100 may include, but is not limited to, a processor 1101, a communication port 1102, and a memory. 1103.
  • the processor 1101 is configured to perform control processing on the actions of the communication device 1100.
  • the communication device 1100 is configured to perform the functions implemented by the CP in the foregoing embodiments shown in the CP101 in FIG. 1, the CP208 in FIG. 2, the CP in FIG. 3, and the CP700 in FIG. 7.
  • the units in the embodiment shown in FIG. 7 are software-implemented functional modules, these software functional modules can be stored in the memory 1103.
  • the processor 1101 executes the software codes in the memory 1103, the control plane is prompted
  • the entity CP performs the following steps:
  • the first message includes terminal user information
  • the terminal user information includes user access information and service level agreement SLA information; for specific implementation, please refer to the detailed description of step 301 in the embodiment shown in FIG. 3 , I won’t repeat it here.
  • the first request message includes the identifier of the target UP, and the target UP is associated with the terminal user; for the specific implementation, please refer to the detailed description of step 303 in the embodiment shown in FIG. 3, here No longer.
  • connection between the terminal user and the target UP is processed according to the identifier of the target UP.
  • identifier of the target UP For a specific implementation manner, please refer to the detailed description of step 304 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second operation attribute field.
  • a second object field For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes initial SLA information
  • the first operation field includes information indicating that the operation type is user online
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes update SLA information
  • the first operation field includes information indicating that the operation type is update user SLA
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is a second migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • control plane entity CP is further used to perform the following steps:
  • step 301 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the first message may include a first object field, a first operation field, and a first operation attribute field
  • the first request message includes a second object field, a second operation field, and a first operation field.
  • Operational attribute fields For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information; the first operation field includes the first information indicating that the operation type is that the user is offline.
  • the first object field includes the user access information; the first operation field includes the first information indicating that the operation type is that the user is offline.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the communication device 1100 is configured to perform the functions implemented by the USF in the foregoing embodiments shown in the USF 207 in FIG. 2, the USF in FIG. 3, and the USF 800 in FIG. 8.
  • the units in the embodiment shown in FIG. 8 are functional modules implemented by software, these software functional modules may be stored in the memory 1103.
  • the processor 1101 executes the software codes in the memory 1103, the control plane is prompted
  • the entity CP performs the following steps:
  • the first message includes terminal user information, the terminal user information includes user access information and service level agreement SLA information; for specific implementation, please refer to step 301 in the embodiment shown in FIG. 3 for details Description, I won’t repeat it here.
  • the target UP associated with the terminal user is determined according to the first message; for a specific implementation, please refer to the detailed description of step 302 in the embodiment shown in FIG. 3, which will not be repeated here.
  • step 303 Send a first request message to the CP, where the first request message includes the identifier of the target UP.
  • the first request message includes the identifier of the target UP.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second operation attribute field.
  • a second object field For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes initial SLA information
  • the first operation field includes an indication that the operation type is User online information
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is the first migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the first object field includes the user access information and the SLA information
  • the SLA information includes update SLA information
  • the first operation field includes an indication that the operation type is Update user SLA information
  • the second object field includes the user access information
  • the second operation field includes information indicating that the operation type is a second migration request
  • the second operation attribute field includes the identifier of the target UP.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the USF is also used to:
  • step 307 Send a second request message to the SDN controller, where the second request message includes the VLAN identifier, the target SF identifier, and the target UP identifier.
  • the second request message includes the VLAN identifier, the target SF identifier, and the target UP identifier.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • a third object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 5, which will not be repeated here.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a third migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a fourth migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the USF is also used to perform the following steps:
  • the first message includes the first information indicating that the operation type is that the user is offline and the user access information; for the specific implementation, please refer to the detailed description of step 301 in the embodiment shown in FIG. 3, I won't repeat them here.
  • the target UP associated with the end user, the identity of the target migration function entity SF associated with the end user, and the virtual local area network VLAN identity of the end user are determined according to the first message; please refer to the implementation shown in Figure 3 for specific implementation The detailed description of step 302 in the example will not be repeated here.
  • the first message includes a first object field, a first operation field, and a first operation attribute field;
  • the first request message includes a second object field, a second operation field, and a second Operational attribute field.
  • the first object field includes the user access information; the first operation field includes The first indication operation type is information indicating that the user is offline.
  • the first indication operation type is information indicating that the user is offline.
  • the user access information includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the migration function entity SF identity ID includes the migration function entity SF identity ID, media intervention control layer MAC information, QINQ information, and initial user plane entity UP ID.
  • the user access information further includes at least one of the following:
  • Network segment information For a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 4, which will not be repeated here.
  • the communication device 1100 is configured to perform the functions implemented by the SDN controller in the foregoing embodiments shown in the SDN controller 206 in FIG. 2, the SDN controller in FIG. 3, and the SDN controller 900 in FIG. 9.
  • the units in the embodiment shown in FIG. 9 are software-implemented functional modules, these software functional modules can be stored in the memory 1103.
  • the processor 1101 executes the software codes in the memory 1103, the SDN is prompted to control
  • the device performs the following steps:
  • connection between the terminal user corresponding to the virtual local area network VLAN identifier and the target UP is processed in the target SF according to the second request message.
  • step 308 in the embodiment shown in FIG. 3, which will not be repeated here.
  • the second request message includes a third object field, a third operation field, and a third operation attribute field.
  • a third object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 5, which will not be repeated here.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a third migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the third object field includes the VLAN identifier
  • the third operation field includes information indicating that the operation type is a fourth migration request
  • the third operation attribute field Including the identification of the target SF and the identification of the target UP.
  • the BNG further includes the target SF
  • the SDN controller processes the connection between the terminal user corresponding to the virtual local area network VLAN identifier and the target UP in the target SF according to the second request message include:
  • the SDN controller sends a third request message to the target SF, where the third request message includes the VLAN identifier and the target UP identifier.
  • the third request message includes the VLAN identifier and the target UP identifier.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • a fourth object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 6, which will not be repeated here.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field Include the identifier of the target UP.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field Include the identifier of the target UP.
  • the communication device 1100 is configured to perform the functions implemented by the SF in the embodiments shown in SF202 in FIG. 2, SF in FIG. 3, and SF1000 in FIG. 10.
  • these software functional modules may be stored in the memory 1103, and when the processor 1101 executes the software codes in the memory 1103, the SF is prompted to execute The following steps:
  • the third request message includes the identification of the end user and the identification of the target UP; for specific implementation, please refer to the detailed description of step 308 in the embodiment shown in FIG. 3, which will not be repeated here .
  • connection between the terminal user and the target UP is processed according to the third request message.
  • the third request message includes a fourth object field, a fourth operation field, and a fourth operation attribute field.
  • a fourth object field for a specific implementation manner, please refer to the detailed description in the embodiment shown in FIG. 6, which will not be repeated here.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the fifth migration request
  • the fourth operation attribute field Include the identification of the target UP.
  • the fourth object field includes the VLAN identifier
  • the fourth operation field includes information indicating that the operation type is the sixth migration request
  • the fourth operation attribute field Include the identification of the target UP.
  • the processor 1101 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • FIG. 12 is a schematic diagram of a specific logical structure of the broadband network gateway BNG1200 involved in the above-mentioned embodiments provided by the embodiments of this application.
  • the broadband network gateway BNG1200 may include, but is not limited to, a control plane entity CP1201 and a user plane. Select the functional entity USF1202.
  • the BNG 1200 may also include an SDN controller 1203 and a migration function entity SF1204.
  • the control plane entity CP1201, the user plane selection function entity USF1202, the SDN controller 1203, and the migration function entity SF1204 can be implemented specifically Refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.
  • the embodiments of the present application also provide a computer-readable storage medium storing one or more computer-executable instructions.
  • the processor executes any specific method as described in the foregoing method embodiments. Implement the method described in the mode.
  • the embodiments of the present application also provide a computer program product storing one or more computer-executable instructions.
  • the processor executes any one of the foregoing method embodiments. Way way.
  • the present application also provides a chip system.
  • the chip system includes a processor.
  • the processor may include a baseband processor (BP, baseband processor).
  • the processor may also include an application processor (AP, application processor). ), the processor is used to support the communication device to implement the functions involved in any specific implementation manner of the foregoing method embodiments.
  • the chip system may also include memory and memory, which are used to store necessary program instructions and data.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

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Abstract

本申请实施例提供了一种通信方法及相关设备, 在该方法中, 控制面实体CP向用户面选择功能实体USF发送第一消息, 该第一消息包括终端用户信息, 指示该USF根据该终端用户信息调度该终端用户, 然后, 该CP根据USF发送的第一请求消息所携带的目标UP的标识确定将该终端用户调度到该目标UP, 也就是说, 通过USF确定出终端用户的调度策略, 此后, 该CP进一步根据该目标UP标识处理该终端用户与该目标UP之间的连接, 从而在BNG设备中通过USF实现终端用户的调度策略的确定, 减少控制面实体CP的处理负担, 提升通信性能。

Description

一种通信方法及相关设备
本申请要求于2020年04月30日提交中国专利局、申请号为202010365472.2、发明名称为“一种通信方法及相关设备”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领域，尤其涉及一种通信方法及相关设备。
背景技术
随着软件定义网络(software defined network，SDN)控制器技术和网络功能虚拟化(network functions virtualization，NFV)技术的发展，城域网向着传统以网络为核心的架构向以数据中心为核心的网络架构演进。
在现有技术中，为了与以数据中心为核心的网络架构相适应，传统的网元设备也需要从网络功能专业化朝着通用化演进。其中，作为传统的宽带接入网关设备，BNG(Broadband Network Gateway，宽带网络网关)在用户宽带接入业务和场景中非常重要，在BNG中，通过控制面实体(control plane，CP)实现对接入该BNG设备的终端用户进行用户认证、接入控制、用户调度等。
然而，随着各种互联网业务的发展，对BNG设备支持的用户的会话数要求不断提高、对用户接入带宽不断提高，当前BNG设备中对于CP的处理性能的要求也随之不断提高，导致CP的处理负担过重，影响通信性能。
发明内容
本申请实施例提供了一种通信方法及相关设备，用于在宽带网络网关BNG设备中通过用户面选择功能实体USF实现终端用户的动态调度，减少控制面实体CP的处理负担，提升通信性能。
本申请实施例第一方面提供了一种通信方法，应用于控制面实体(control plane，CP)，该CP包含于宽带网络网关(broadband network gateway，BNG)，该BNG还包括用户面选择功能实体(user plane steering function，USF)，在该方法中，该CP向该USF发送第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；然后，该CP接收来自该USF的第一请求消息，该第一请求消息包括目标UP的标识，该目标UP关联于该终端用户，即指示根据该目标UP调度该终端用户；接着，CP根据该目标UP的标识处理该终端用户与该目标UP之间的连接。其中，CP向该USF发送第一消息，该第一消息包括终端用户信息，指示该USF根据该终端用户信息调度该终端用户，然后，该CP根据USF发送的第一请求消息所携带的目标UP的标识确定将该终端用户调度到该目标UP，也就是说，通过USF确定出终端用户的调度策略，此后，该CP进一步根据该目标UP标识处理该终端用户与该目标UP之间的连接，从而在BNG设备中通过USF实现终端用户的调度策略的确定，减少控制面实体CP的处理负担，提升通信性能。
在本申请实施例第一方面的一种具体的实现方式中，CP与USF之间可以通过第一通信接口，CP可以通过该第一通信接口向该USF发送第一消息，USF可以通过该第一通信接口向该CP发送第一请求消息。
本实施例中，CP和USF之间的可以通过第一通信接口进行数据交互，该第一通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得CP和USF可以通过该第一通信接口对齐两者所传输的消息内容，提升通信效率。
在本申请实施例第一方面的一种具体的实现方式中，该第一消息可以包括第一对象字段、第一操作字段，以及第一操作属性字段，该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
本实施例中，在该CP与USF之间的通信接口(例如可以是第一通信接口)中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，CP向USF发送的第一消息和USF向CP发送的第一消息可以使用包含有该至少三个字段，使得CP和USF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
在本申请实施例第一方面的一种具体的实现方式中，可以应用于CP调度终端用户上线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。
本实施例中，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为用户上线的信息向USF指示调度该终端用户上线；此后，USF可以在USF与CP之间的通信接口中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第一迁移请求的信息向CP指示将该终端用户进行上线迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
在本申请实施例第一方面的一种具体的实现方式中，可以应用于CP更新终端用户的SLA的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。
本实施例中，当CP更新终端用户的SLA时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为更新用户SLA的信息向USF指示更新该终端用户的SLA；此后，USF可以在USF与CP之间的通信接口中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第二迁移请求的信息向CP指示将该终端用户基于更新SLA进行迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP，从而实现调度该终端用户在该 BNG中的上线连接。
在本申请实施例第一方面的一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、QINQ信息、初始用户面实体UP ID。
本实施例中，不同的用户接入信息可以指示一个或多个不同的终端用户，CP可以通过用户接入信息所包括的迁移功能实体SF身份标识ID、QINQ信息、初始用户面实体UP ID等信息向USF指示需要调度的一个或多个不同的终端用户，从而可以通过多种实现方式向USF指示需要调度的终端用户，提升方案实现的灵活性。
本申请实施例第一方面的一种具体的实现方式中，该用户接入信息还包括以下至少一个：网段信息、组UP ID、访问接口ID。
本实施例中，在该用户接入信息中，除了可以包括该SF ID、QINQ信息以及初始UP ID之外，当需要向USF指示调度多个不同的终端用户的时候，该用户接入信息还可以包括网段信息、组UP ID、访问接口ID，从而，向该USF指示调度网段信息、组UP ID、访问接口ID中的至少一个，所对应的多个不同的终端用户。
本申请实施例第一方面的一种具体的实现方式中，CP根据该目标UP的标识处理该终端用户与该目标UP之间的连接具体可以包括：该CP向该目标UP发送该终端用户的标识。
本实施例中，CP用于调度终端用户与BNG之间的连接，其中，具体该CP实现根据该目标UP的标识处理该终端用户与该目标UP之间的连接过程中，可以是向目标UP发送该终端用户的标识，从而，使得目标UP得知调度该终端用户，实现处理该终端用户与该目标UP之间的动态调度。
本申请实施例第二方面提供了一种通信方法，应用于用户面选择功能实体USF，该USF包含于宽带网络网关BNG，该BNG还包括控制面实体CP和软件定义网络SDN控制器，在该方法中，CP在调度终端用户时，USF接收来自该CP的第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；然后，该USF根据该第一消息确定出关联于该终端用户的目标UP，即向CP指示根据该目标UP调度该终端用户；接着，该USF向该CP发送第一请求消息，该第一请求消息包括该目标UP的标识。其中，USF接收来自CP的第一消息，该第一消息包括用户接入信息和SLA信息，指示该USF根据该终端用户信息调度该终端用户，此后，该CP可以根据USF发送的第一请求消息所携带的目标UP的标识确定将该终端用户调度到该目标UP，从而实现在BNG设备中通过USF实现终端用户的动态调度，减少控制面实体CP的处理负担，提升通信性能。
在本申请实施例第二方面的一种具体的实现方式中，CP与USF之间可以通过第一通信接口，CP可以通过该第一通信接口向该USF发送第一消息，USF可以通过该第一通信接口向该CP发送第一请求消息。
本实施例中，CP和USF之间的可以通过第一通信接口进行数据交互，该第一通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得CP和USF可以通过该第一通信接口对齐两者所传输的消息内容，提升通信效率。
本申请实施例第二方面的一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；该第一请求消息包括第二对象字段、第二操作字段， 以及第二操作属性字段。
本实施例中，在该USF与CP之间的通信接口(例如可以是该第一通信接口)中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，CP向USF发送的第一消息和USF向CP发送的第一消息可以使用包含有该至少三个字段，使得CP和USF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
本申请实施例第二方面的一种具体的实现方式中，可以应用于CP调度终端用户上线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。
本实施例中，CP可以在USF与CP之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为用户上线的信息向USF指示调度该终端用户上线；此后，USF可以在USF与CP之间的通信接口中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第一迁移请求的信息向CP指示将该终端用户进行上线迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
本申请实施例第二方面的一种具体的实现方式中，可以应用于CP更新终端用户的SLA的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。
本实施例中，当CP更新终端用户的SLA时，CP可以在USF与CP之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为更新用户SLA的信息向USF指示更新该终端用户的SLA；此后，USF可以在USF与CP之间的通信接口中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第二迁移请求的信息向CP指示将该终端用户基于更新SLA进行迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
本申请实施例第二方面的一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。
本实施例中，不同的用户接入信息可以指示一个或多个不同的终端用户，CP可以通过用户接入信息所包括的SF ID、QINQ信息以及初始UP ID等，向USF指示需要调度的一个或多个不同的终端用户，从而可以通过多种实现方式向USF指示需要调度的终端用户，提升方案实现的灵活性。
本申请实施例第二方面的一种具体的实现方式中，该用户接入信息还包括以下至少一 个：网段信息、组UP ID、访问接口ID。
本实施例中，在该用户接入信息中，除了可以包括该SF ID、QINQ信息以及初始UP ID之外，当需要向USF指示调度多个不同的终端用户的时候，该用户接入信息还可以包括网段信息、组UP ID、访问接口ID，从而，向该USF指示调度网段信息、组UP ID、访问接口ID中的至少一个，所对应的多个不同的终端用户。
本申请实施例第二方面的一种具体的实现方式中，该BNG还包括软件定义网络SDN控制器，在该USF接收来自该CP的第一消息之后，该方法还包括：该USF根据该第一消息可以进一步确定关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；此后，该USF向该SDN控制器发送第二请求消息，该第二请求消息包括该VLAN标识、该目标SF的标识和该目标UP的标识。
本实施例中，USF可以进一步根据该第一消息确定出关联于该终端用户的目标SF的标识以及VLAN标识，此后，USF可以通过包含有该VLAN标识、该目标SF的标识和该目标UP的标识的第二请求消息向SDN控制器指示在该目标SF上将该VLAN标识对应的终端用户调度到该目标UP上。其中，将终端用户调度到目标UP的过程中，可以将该终端用户调度到该目标UP对应的SF子接口上，通过SDN控制器可以控制SF对接入该SF中不同SF子接口的终端用户进行调度，因此，USF可以第二请求消息实现在SDN控制器将该终端用户调度至该目标UP，从而在BNG设备中通过USF实现终端用户的调度策略的确定的基础上，再通过该USF实现终端用户的动态调度，可以进一步减少控制面实体CP的处理负担，提升通信性能。
在本申请实施例第二方面的一种具体的实现方式中，USF与SDN控制器之间可以通过第二通信接口，USF可以通过该第二通信接口向该SDN控制器发送第二请求消息。
本实施例中，USF与SDN控制器之间可以通过第二通信接口进行数据交互，该第二通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得USF与SDN控制器可以通过该第二通信接口对齐两者所传输的消息内容，提升通信效率。
本申请实施例第二方面的一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
本实施例中，在该USF与SDN控制器之间的通信接口(例如可以是该第二通信接口)中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，USF向SDN控制器发送的第二请求消息可以使用包含有该至少三个字段，使得USF与SDN控制器可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
本申请实施例第二方面的一种具体的实现方式中，可以应用于USF调度终端用户上线的场景中，此时，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第三迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。
本实施例中，当USF根据第一消息确定需要调度该终端用户上线时，USF可以在USF与SDN控制器之间的通信接口中，通过第三对象字段所包含的VLAN标识向SDN控制器指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第三迁移请求的信息向 SDN控制器指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
本申请实施例第二方面的一种具体的实现方式中，可以应用于USF更新终端用户连接的场景中，此时，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第四迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。
本实施例中，当USF根据第一消息确定需要更新终端用户的连接时，USF可以在USF与SDN控制器之间的通信接口中，通过第三对象字段所包含的VLAN标识向USF指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第四迁移请求的信息向SDN控制器指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
本申请实施例第三方面提供了一种通信方法，应用于软件定义网络SDN控制器，该SDN控制器包含于宽带网络网关BNG，该BNG还包括控制面实体CP和用户面选择功能实体USF，在该方法中，该SDN控制器接收来自该USF的第二请求消息，该第二请求消息包括虚拟局域网VLAN标识、目标SF的标识和目标UP的标识，即USF通过该第二请求消息向SDN控制器指示根据在该目标SF中调度该VLAN标识对应的终端用户与该目标UP之间的连接；然后，SDN控制器根据该第二请求消息在该目标SF中处理该VLAN标识对应的终端用户和该目标UP之间的连接。其中，该SDN控制器接收来自USF的第二请求消息，该第二请求消息包括该终端用户的标识、该目标UP的标识和该目标SF的标识，即该USF通过该第二请求消息向SDN控制器指示在该目标SF中调度该VLAN标识对应的终端用户与该目标UP之间的连接，此后，该SDN控制器根据该第二请求消息在该目标SF中处理该终端用户与该目标UP之间的连接，从而在BNG设备中SDN控制器通过USF的指示实现终端用户的动态调度，可以减少控制面实体CP的处理负担，提升通信性能。
在本申请实施例第三方面的一种具体的实现方式中，USF与SDN控制器之间可以通过第二通信接口，USF可以通过该第二通信接口向该SDN控制器发送第二请求消息。
本实施例中，USF与SDN控制器之间可以通过第二通信接口进行数据交互，该第二通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得USF与SDN控制器可以通过该第二通信接口对齐两者所传输的消息内容，提升通信效率。
本申请实施例第三方面的一种具体的实现方式中，所述第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
本实施例中，在该SDN控制器与USF之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，USF向SDN控制器发送的第二请求消息可以使用包含有该至少三个字段，使得USF与SDN控制器可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
本申请实施例第三方面的一种具体的实现方式中，可以应用于USF调度终端用户上线 的场景中，此时，在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第三迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
本实施例中，USF可以在USF与SDN控制器之间的通信接口中，通过第三对象字段所包含的VLAN标识向SDN控制器指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第三迁移请求的信息向SDN控制器指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
本申请实施例第三方面的一种具体的实现方式中，可以应用于USF更新终端用户连接的场景中，此时，在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第四迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
本实施例中，USF可以在USF与SDN控制器之间的通信接口中，通过第三对象字段所包含的VLAN标识向USF指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第四迁移请求的信息向SDN控制器指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
本申请实施例第三方面的一种具体的实现方式中，该BNG还包括该目标SF，其中，当该第二请求消息中包括该指示操作类型为第三迁移请求的信息时，SDN控制器根据该第二请求消息在该目标SF中处理该VLAN标识对应的终端用户和该目标UP之间的连接包括：SDN控制器向该目标SF发送第三请求消息，该第三请求消息包括该VLAN标识和该目标UP的标识。
本实施例中，将终端用户调度到目标UP的过程中，可以将该终端用户调度到该目标UP对应的SF子接口上，通过SDN控制器可以控制SF对接入该SF中不同SF子接口的终端用户进行调度，此时，SDN控制器具体可以通过第三请求消息在BNG中的SF将该VLAN标识对应的终端用户迁移至该目标UP，从而实现该终端用户在该BNG设备中的上线。
在本申请实施例第三方面的一种具体的实现方式中，SDN控制器与SF之间可以通过第三通信接口，SDN控制器可以通过该第三通信接口向该目标SF发送第三请求消息。
本实施例中，SDN控制器与SF之间可以通过第三通信接口进行数据交互，该第三通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得SDN控制器与SF可以通过该第二通信接口对齐两者所传输的消息内容，提升通信效率。
本申请实施例第三方面的一种具体的实现方式中，所述第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。
本实施例中，在该SDN控制器与SF之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，SDN控制器向SF发送的第三请求消息可以使用包含有该至少三个字段，使得SDN控制器与SF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
本申请实施例第三方面的一种具体的实现方式中，可以应用于SDN控制器调度终端用户上线的场景中，即第二请求消息中携带有指示操作类型为第三迁移请求的信息，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括目标UP的标识。
本实施例中，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
本申请实施例第三方面的一种具体的实现方式中，可以应用于SDN控制器更新终端用户连接的场景中，即第二请求消息中携带有指示操作类型为第四迁移请求的信息，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括目标UP的标识。
本实施例中，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
本申请实施例第四方面提供了一种通信方法，应用于迁移功能实体SF，在该方法中，该SF接收来自SDN控制器的第三请求消息，该第三请求消息包括终端用户的标识和目标UP的标识；然后，该SF根据该第三请求消息处理该终端用户与该目标UP之间的连接。其中，SF可以根据SDN控制器发送的第三请求消息确定出终端用户的标识和目标UP的标识，并进一步根据该第三请求消息处理该终端用户与该目标UP之间的连接，从而实现在BNG中对终端用户与SF之间连接方式的动态调度。
在本申请实施例第四方面的一种具体的实现方式中，SDN控制器与SF之间可以通过第三通信接口，SDN控制器可以通过该第三通信接口向该目标SF发送第三请求消息。
本实施例中，SDN控制器与SF之间可以通过第三通信接口进行数据交互，该第三通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得SDN控制器与SF可以通过该第二通信接口对齐两者所传输的消息内容，提升通信效率。
本申请实施例第四方面的一种具体的实现方式中，所述第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。
本实施例中，在该SF与SDN控制器之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，SDN控制器向SF发送的第三请求消息可以使用包含有该至少三个字段，使得SF与SDN控制器可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
本申请实施例第四方面的一种具体的实现方式中，可以应用于SDN控制器调度终端用户上线的场景中，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识， 所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括目标UP的标识。
本实施例中，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的上线连接。
本申请实施例第四方面的一种具体的实现方式中，可以应用于SDN控制器更新终端用户连接的场景中，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括目标UP的标识。
本实施例中，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
本申请实施例第五方面提供了一种通信方法，应用于控制面实体CP，该CP包含于宽带网络网关BNG，该BNG还包括用户面选择功能实体USF，在该方法中，CP获取下线请求消息，该下线请求消息包括终端用户信息，该终端用户信息包括用户接入信息，此后，该CP向该USF发送第一消息，该第一消息包括第一指示操作类型为用户下线的信息和所述用户接入信息。其中，CP向该USF发送第一消息，该第一消息包括第一指示操作类型为用户下线的信息和所述用户接入信息，指示USF根据该终端用户信息调度该终端用户下线，然后USF删除该终端用户对应的连接信息，从而，通过USF实现终端用户对应的连接信息的存储，可以减少控制面实体CP的存储负担，提升通信性能。
在本申请实施例第五方面的一种具体的实现方式中，该第一消息可以包括第一对象字段、第一操作字段，以及第一操作属性字段，该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
本实施例中，CP与USF之间可以通过NETCONF、RESTFUL或者是其它的接口实现通信，其中，在该CP与USF之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，CP向USF发送的第一消息和USF向CP发送的第一消息可以使用包含有该至少三个字段，使得CP和USF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
在本申请实施例第五方面的一种具体的实现方式中，可以应用于CP调度终端用户下线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。
本实施例中，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息向USF指示所要调度的终端用户，通过第一操作字段所包含的第一指示操作类 型为用户下线的信息向USF指示调度该终端用户下线，此后，USF可以根据该第一消息将该终端用户调度下线，从而实现调度该终端用户在该BNG中的下线连接。
在本申请实施例第五方面的一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID；或，该用户接入信息包括网段信息；或，该用户接入信息包括组UP ID；或，该用户接入信息包括访问接口ID。
本实施例中，不同的用户接入信息可以指示一个或多个不同的终端用户，CP可以通过用户接入信息所包括的SF ID、QINQ信息以及初始UP ID等信息，向USF指示需要调度的一个或多个不同的终端用户，从而可以通过多种实现方式向USF指示需要调度的终端用户，提升方案实现的灵活性。
本申请实施例第五方面的一种具体的实现方式中，该用户接入信息还包括以下至少一个：网段信息、组UP ID、访问接口ID。
本实施例中，在该用户接入信息中，除了可以包括该SF ID、QINQ信息以及初始UP ID之外，当需要向USF指示调度多个不同的终端用户的时候，该用户接入信息还可以包括网段信息、组UP ID、访问接口ID，从而，向该USF指示调度网段信息、组UP ID、访问接口ID中的至少一个，所对应的多个不同的终端用户。
本申请实施例第六方面提供了一种通信方法，应用于用户面选择功能实体USF，该USF包含于宽带网络网关BNG，该BNG还包括控制面实体CP和软件定义网络SDN控制器，在该方法中，CP在调度终端用户时，USF接收来自该CP的第一消息，该第一消息包括第一指示操作类型为用户下线的信息和所述用户接入信息；然后，该USF根据该第一消息USF删除该终端用户对应的连接信息。从而，通过USF实现终端用户对应的连接信息的存储，可以减少控制面实体CP的存储负担，提升通信性能。
本申请实施例第六方面的一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
本实施例中，USF与CP之间可以通过NETCONF、RESTFUL或者是其它的接口实现通信，其中，在该USF与CP之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，CP向USF发送的第一消息和USF向CP发送的第一消息可以使用包含有该至少三个字段，使得CP和USF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。
在本申请实施例第六方面的一种具体的实现方式中，可以应用于CP调度终端用户下线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。
本实施例中，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息向USF指示所要调度的终端用户，通过第一操作字段所包含的第一指示操作类型为用户下线的信息向USF指示调度该终端用户下线，此后，USF可以根据该第一消息将该终端用户调度下线，即USF删除该终端用户对应的连接信息，从而实现调度该终端用户 在该BNG中的下线连接。
本申请实施例第七方面提供一种控制面实体CP，该CP具有实现上述第一方面或第一方面任意一种具体实现方式的方法的功能，或者，该CP具有实现上述第五方面或第五方面任意一种具体实现方式的方法的功能。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。该硬件或软件包括一个或多个与上述功能相对应的模块，例如：接收单元、发送单元、处理单元等。
本申请实施例第八方面提供一种用户面选择功能实体USF，该USF具有实现上述第二方面或第二方面任意一种具体实现方式的方法的功能，或者，该CP具有实现上述第六方面或第六方面任意一种具体实现方式的方法的功能。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。该硬件或软件包括一个或多个与上述功能相对应的模块，例如：接收单元、发送单元、处理单元等。
本申请实施例第九方面提供一种软件定义网络SDN控制器，该SDN控制器具有实现上述第三方面或第三方面任意一种具体实现方式的方法的功能。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。该硬件或软件包括一个或多个与上述功能相对应的模块，例如：接收单元、发送单元、处理单元等。
本申请实施例第十方面提供一种迁移功能实体SF，该SF具有实现上述第四方面或第四方面任意一种具体实现方式的方法的功能。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。该硬件或软件包括一个或多个与上述功能相对应的模块，例如：接收单元、发送单元、处理单元等。
本申请实施例第十一方面提供了一种控制面实体CP，该CP包括至少一个处理器、存储器以及存储在存储器中并可在处理器上运行的计算机执行指令，在所述计算机执行指令被所述处理器执行时，所述处理器执行如上述第一方面或第一方面任意一种具体的实现方式所述的方法，或者，所述处理器执行如上述第五方面或第五方面任意一种具体的实现方式所述的方法。
本申请实施例第十二方面提供了一种用户面选择功能实体USF，该USF包括至少一个处理器、存储器以及存储在存储器中并可在处理器上运行的计算机执行指令，在所述计算机执行指令被所述处理器执行时，所述处理器执行如上述第二方面或第二方面任意一种具体的实现方式所述的方法，或者，所述处理器执行如上述第六方面或第六方面任意一种具体的实现方式所述的方法。
本申请实施例第十三方面提供了一种软件定义网络SDN控制器，该SDN控制器包括至少一个处理器、存储器以及存储在存储器中并可在处理器上运行的计算机执行指令，在所述计算机执行指令被所述处理器执行时，所述处理器执行如上述第三方面或第三方面任意一种具体的实现方式所述的方法。
本申请实施例第十四方面提供了一种迁移功能实体SF，该SF包括至少一个处理器、存储器以及存储在存储器中并可在处理器上运行的计算机执行指令，在所述计算机执行指令被所述处理器执行时，所述处理器执行如上述第四方面或第四方面任意一种具体的实现方式所述的方法。
本申请实施例第十五方面提供了一种宽带网络网关BNG，该BNG包括第七方面中的控制面实体CP、第八方面中的用户面选择功能实体USF。
本申请实施例第十五方面的一种具体的实现方式中，该BNG还包括第九方面中的软件定义网络SDN控制器。
本申请实施例第十五方面的一种具体的实现方式中，该BNG还包括第十方面中的迁移功能实体SF。
本申请实施例第十六方面提供一种存储一个或多个计算机执行指令的计算机可读存储介质，在所述计算机执行指令被处理器执行时，所述处理器执行如上述第一方面至第六方面或者其中任意一种具体的实现方式所述的方法。
本申请实施例第十七方面提供一种存储一个或多个计算机执行指令的计算机程序产品，在所述计算机执行指令被所述处理器执行时，所述处理器执行上述第一方面至第六方面中任一方面或者其中任意一种具体的实现方式所述的方法。
本申请实施例第十八方面提供了一种芯片系统，该芯片系统包括处理器，该处理器可以包括应用处理器基带处理器(BP，baseband processor)，示例性地，该处理器还可以包括(AP，application processor)，用于支持通信装置实现上述第一方面至第六方面中任一方面或者其中任意一种具体的实现方式所述的方法。在一种具体的设计中，芯片系统还可以包括存储器，该存储器用于保存必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
其中，第七、第十一、第十五至第十八方面或者其中任一种具体实现方式所带来的技术效果，可参见第一方面或第一方面不同具体实现方式所带来的技术效果，此处不再赘述，或者，可参见第五方面或第五方面不同具体实现方式所带来的技术效果，此处不再赘述。
其中，第八、第十二、第十五至第十八方面或者其中任一种具体实现方式所带来的技术效果可参见第二方面或第二方面不同具体实现方式所带来的技术效果，此处不再赘述，或者，可参见第六方面或第六方面不同具体实现方式所带来的技术效果，此处不再赘述。
其中，第九、第十三、第十五至第十八方面或者其中任一种具体实现方式所带来的技术效果可参见第三方面或第三方面不同具体实现方式所带来的技术效果，此处不再赘述。
其中，第十、第十四、第十五至第十八方面或者其中任一种具体实现方式所带来的技术效果可参见第四方面或第四方面不同具体实现方式所带来的技术效果，此处不再赘述。
从以上技术方案可以看出，本申请实施例具有以下优点：CP向该USF发送第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；然后，该CP接收来自该USF的第一请求消息，该第一请求消息包括目标UP的标识，该目标UP关联于该终端用户，即指示根据该目标UP调度该终端用户；接着，CP根据该目标UP的标识处理该终端用户与该目标UP之间的连接。其中，CP向该USF发送第一消息，该第一消息包括终端用户信息，指示USF根据该终端用户信息调度该终端用户，然后，该CP根据USF发送的第一请求消息所携带的目标UP的标识确定将该终端用户调度到该目标UP，也就是说，通过USF确定出终端用户的调度策略，此后，该CP进一步根据该目标UP标识处理该终端用户与该目标UP之间的连接，从而在BNG设备中通过USF实现终端用户的 调度策略的确定，减少控制面实体CP的处理负担，提升通信性能。
附图说明
图1为本申请实施例网络架构的一个示意图；
图2为本申请实施例网络架构的另一个示意图；
图3为本申请实施例一种通信方法实施例的一个示意图；
图4为本申请实施例一种通信方法实施例的另一个示意图；
图5为本申请实施例一种通信方法实施例的另一个示意图；
图6为本申请实施例一种通信方法实施例的另一个示意图；
图7为本申请实施例一种控制面实体CP实施例的一个示意图；
图8为本申请实施例一种用户面选择功能实体USF实施例的一个示意图；
图9为本申请实施例一种软件定义网络SDN控制器实施例的一个示意图；
图10为本申请实施例一种接入网元SF实施例的一个示意图；
图11为本申请实施例一种通信装置实施例的一个示意图；
图12为本申请实施例一种宽带网络网关BNG实施例的一个示意图。
具体实施方式
本申请实施例提供了一种通信方法及相关设备，用于在BNG设备中通过USF实现终端用户的调度策略的确定，减少控制面实体CP的处理负担，提升通信性能。
随着软件定义型网络(SDN)技术和网络功能虚拟化(NFV)技术的发展，城域网向着传统以网络为核心的架构向以数据中心为核心的网络架构演进；传统的网元设备也从专业化朝着通用化演进。传统网元设备从专业化朝着通用化演进主要解决两个解耦：控制与转发的解耦、软件与硬件的解耦。其中，BNG作为传统的宽带接入网关设备，在用户宽带接入业务和场景中非常重要。一般地，在BNG设备中，通过CP实现对接入该BNG设备的终端用户进行用户认证、接入控制、用户调度等。
图1为本申请实施例中在宽带网络网关BNG中实现对终端用户连接的动态调度时，网络架构的一个示意图，其中，该宽带网络网关BNG100可以包括控制面实体CP101和用户面实体102。一般来说，UP102与CP101之间可以有多种接口实现，示例性地，有如下三种接口，分别是：
PRi：业务接口，采用虚拟可扩展局域网通用协议扩展(virtual extensible local area network generic protocol extension，VXLAN GPE)接口，UP接收到用户接入协议报文，通过该接口封装上送至CP处理；
Mi：管理接口，采用netconf接口，CP采用该接口向UP下发配置，UP采用该接口上报一些运行状态；
SCi：控制接口，采用控制平面和用户平面分离协议(control plane and user plane separated protocol，CUSP)接口，CP处理用户接入报文，完成用户的协议交互，用户上线后，CP通过该接口向对应UP下发用户表项。
其中，BNG在进行SDN和NFV技术进行虚拟化后，可以通过虚拟宽带网络网关(virtual broadband network gateway，vBNG)实现，类似于图1中的结构，该vBNG包括虚拟宽带网络网关控制面vBNG-CP和vBNG-UP，具体来说，vBNG-CP可以作为虚拟化网络功能(virtualised network function，VNF)，运行在X86服务器上，实现虚拟化；vBNG-UP存在两种形态，一种是在VNF(X86服务器虚拟化网元)中的虚拟UP(virtual user plane，vUP)，一种是物理网络功能(physical network function，PNF)(传统硬件网络设备)中的物理转发处理单元(physical user plane，pUP)，一个vBNG-CP可以管理多个pUP和vUP。当前BNG设备基于SDN/NFV的架构实现前面提到的两个解耦，其中，BNG转发与控制解耦后，控制面可以管理多个转发面，进行多个转发面之间用户、流量、资源的调度，设备的利用率和可靠性都能得到大幅的提升。相对应地，随着各种互联网业务的发展，对BNG设备支持的用户的会话数要求不断提高、对用户接入带宽不断提高，当前BNG设备中对于CP的处理性能的要求也随之不断提高，导致CP的处理负担过重，影响通信性能。
图2为本申请实施例中在宽带网络网关BNG中实现对终端用户连接的动态调度时，网络架构的另一个示意图，其中，vBNG-UP包括多个pUP和vUP，在图2中以vBNG-UP包括pUP1(203)、pUP2(204)、vUP3(205)为例进行说明，pUP1(203)、pUP2(204)、vUP3(205)或者是其它的多个UP可以分布在网络边缘，也可以分布在网络中比较高的位置，为了实现用户动态选择接入的UP网关，vBNG-CP需要和软件定义网络控制器(software defined network controller，SDN控制器)配合，来实现用户的动态迁移。下面对图2所涉及的网元进行描述：
CP208：为vBNG业务控制平面，用于实施用户拨号协议处理，与认证、授权、计费(Authentication、Authorization、Accounting，AAA)服务器交互进行用户认证、计费、授权。根据用户账号识别用户签约的服务等级协议(service level agreement，SLA)，通过用户拨号协议中携带的接入线路信息，通知UP迁移功能(UP steering function，USF)207用户上线并等待USF指导用户迁移，将用户映射到对应UP接入的端口上。同时，CP208将用户表项信息下发到对应UP，对应UP生成该用户的转发表项，并向外发布路由。
USF207：UP迁移的策略控制组件，根据用户的SLA以及负载等情况产生迁移策略，通知CP208以及SF202对用户进行迁移，实现网络的负载均和以及SLA需求。
vBNG-UP包括pUP1(203)、pUP2(204)、vUP3(205)：vBNG业务转发平面。CP处理完用户上线后下发用户表项，UP接收CP208下发的用户表项，在本地生成该用户的转发表项，进行相关的业务策略执行和流量转发，并向外发布路由。
迁移功能实体(steering，SF)202：SF202作为一种用户接入网关，当用户上线时，SF202可以将用户的拨号协议报文通过业务通道上送至CP处理，同时进行家庭终端的汇聚，将用户汇聚到UP，进行二层报文的转发，并对用户进行虚拟局域网(virtual local area network，VLAN)/双层VLAN(802.1Q in 802.1Q，QinQ)的隔离，每个用户独享一个VLAN/QINQ。在该网络架构中，可以存在一个或多个SF202，以支持不同数量的AN201接入的场景。
接入节点(access node，AN)201:家庭终端(Residential gateway，RGW)可以通过AN接入该BNG设备中，其中，该RGW可以是PC、手机、平板电脑或者其它的终端，AN一 般会对该RGW做网络地址转换(network address translation，NAT)处理，并为RGW分配私网IP地址，进行以太网上的点对点协议(Point-to-Point Protocol Over Ethernet，PPPoE)、以太网上的互联网协议(Internet Protocol over Ethemet，IPoE)拨号，向vBNG获取IP，进行网络访问。
SDN控制器206：通过USF207接收CP208发送的对应用户的接入线路信息，包括接入的交换机(switch，SW)/光线路终端(optical line termination，OLT)身份标识(identity document，ID)，接入的端口信息，vlan信息等，向对应的SW/OLT下发迁移的策略，将该用户的端口+VLAN/QINQ映射到与对应UP连接的二层隧道，例如虚拟可扩展局域网通用协议扩展(virtual extensible local area network，VXLAN)、虚拟租用链路(virtual leased line，VLL)、或者是以太网虚拟私有网(ethernet virtual private network，EVPN)等。
在图2中所示网络架构中，在宽带网络网关BNG中实现对终端用户连接的动态调度时，相比于图1所示网络架构，具体来说，在接入终端(access node，AN)201接入网后面增加SF202设备，该设备与vBNG-UP之间建立二层隧道；SF202与AN201接入的物理接口划分不同的子接口，不同子接口中匹配不同的虚拟局域网(virtual local area network，VLAN)/双层VLAN(QinQ，802.1Q in 802.1Q)范围，不同子接口对应不同二层隧道。具体AN201上线可以默认从pUP1(203)上线，控制报文发送给CP208，CP208向USF207交互用户的迁移策略，USF207根据AN201的服务等级协议(service level agreement，SLA)判断应该从pUP2(204)接入，则通知CP208将该用户表项下发至pUP2(204)；同时，USF207通知SDN控制器206，对SF202进行配置，将该用户对应的VLAN/QinQ绑定在pUP2(204)对应的接口上，关于AN201后续的转发报文直接转发至pUP2(204)，其中USF207是动态迁移的策略点，CP208向USF207询问是否迁移，由USF207通知CP208和SDN控制器206做迁移，该策略点可以内置在CP208中，也可以内置在SDN控制器206中，也可以是一个单独的网元。
以上描述了本申请实施例中实现的网络架构以及部分实现过程，下面将结合具体的实施过程对本申请实施例提供的通信方法进行说明。
请参阅图3，本申请实施例中一种通信方法的一个实施例包括：
301、CP向USF发送第一消息；
本实施例中，该CP向USF发送第一消息，相应的，USF在步骤301中得到该第一消息，其中，该第一消息包括终端用户信息，用于向USF指示根据该终端用户信息调度对应的终端用户，该终端用户信息包括用户接入信息，可选地，该终端用户信息中还可以包括服务等级协议SLA信息。
在一种具体的实现方式中，该CP包含于宽带网络网关BNG，该BNG还包括USF，如图2所示网络架构，作为一种具体的实施方式，该BNG还可以包括UP以及SF等。
在一种具体的实现方式中，CP和USF之间的可以通过第一通信接口进行数据交互，该第一通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得CP和USF可以通过该第一通信接口对齐两者所传输的消息内容，提升通信效率。
在一种具体的实现方式中，该第一消息可以包括第一对象字段、第一操作字段，以及第一操作属性字段。具体来说，CP与USF之间可以通过NETCONF、RESTFUL或者是其它的接口实现通信，在该CP与USF之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，其中，对象字段用于表示所传输消息对应操作的终端用户的标识、操作字段用于表示所传输消息对应操作的操作类型、操作属性字段用于表示所传输消息对应操作的操作端口，此时，CP向USF发送的第一消息中可以使用包含有该至少三个字段，使得CP和USF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。本实施例及后续实施例中，以CP向USF发送的消息中包含有第一对象字段、第一操作字段、第一操作属性字段，USF向CP发送的消息中包含有第二对象字段、第二操作字段、第二操作属性字段为例进行说明。
需要说明的是，具体来说，“对齐”是指不同的通信设备之间通过有线或者无线的接口存在交互消息时，两者对于交互消息收发的载波频率、交互消息类型的确定、交互消息中所承载的字段信息的含义、或者是交互消息的其它配置的理解一致。具体来说，CP和USF可以根据两者接口所传输的消息中携带的该“至少三个字段”使得CP和USF对该“至少三个字段”所承载的字段信息的含义的理解一致。
示例性的，CP与USF之间的通信接口所采用的数据模型可以如图4所示，CP与USF之间的接口的数据模型的至少三个字段中，分别以对象401、操作402、操作属性403为示例进行说明，显然，该至少三个字段还可以通过其它的名称所替代表示，例如可以通过终端、实现、实现属性来表示对象字段、操作字段、操作属性字段，可以通过A字段、B字段、C字段来表示对象字段、操作字段、操作属性字段，还可以通过其它方式来表示对象字段、操作字段、操作属性字段，此处不做限定。
具体来说，在步骤301中所传输的第一消息中，该对象401(即对象字段)中可以携带有用户接入信息，该用户接入信息包括迁移功能实体SF身份标识ID、QINQ信息、初始用户面实体UP ID，可选地，该用户接入信息还可以包括媒体介入控制层MAC信息。该用户接入信息还包括以下至少一个：网段信息、组UP ID、访问接口ID(例如对象401所指示单个用户：SF ID/MAC/QINQ/IP/SLA/Access-interface ID)。
此外，在该用户接入信息中，除了可以包括该SF ID、QINQ信息以及初始UP ID之外，当需要向USF指示调度多个不同的终端用户的时候，该用户接入信息还可以包括网段信息、组UP ID、访问接口ID，从而，向该USF指示调度网段信息、组UP ID、访问接口ID中的至少一个，所对应的多个不同的终端用户。示例性地，该用户接入信息包括网段信息(具有相同网段的一组用户：包括网关和掩码)；和/或，该用户接入信息包括组UP ID(具有相同UP的一组用户)；和/或，该用户接入信息包括访问接口ID(具有相同接入接口的一组用户)。由于不同的用户接入信息可以指示一个或多个不同的终端用户，通过不同的用户接入信息，USF可以不同的用户接入信息调度的一个或多个不同的终端用户，从而可以通过多种实现方式指示USF根据该终端用户信息调度的终端用户，提升方案实现的灵活性。
下面将对操作402所标识不同的操作字段应用于不同的场景进行说明：
一、当应用于终端用户上线的场景时，此时，在该第一消息中，该第一对象字段包括 该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息。具体来说，当CP确定该终端用户上线时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为用户上线的信息(user online)向USF指示调度该终端用户上线。
二、当应用于调度终端用户的连接更新的场景时，此时，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息。具体来说，当CP确定更新终端用户的SLA时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为更新用户SLA的信息(SLA update)向USF指示更新该终端用户的SLA。
三、当应用于调度终端用户下线的场景时，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息(user offline)。具体来说，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息向USF指示所要调度的终端用户，通过第一操作字段所包含的第一指示操作类型为用户下线的信息向USF指示调度该终端用户下线。
此外，在步骤301CP向USF发送第一消息之前，该CP还可以通过多种方式确定需要执行步骤301，即该步骤301存在触发过程，示例性地，该触发过程可以是CP接收来自远程认证拨号用户服务器(remote access dial-in user service,RADIUS)(例如AAA服务器),即CP接收到来自图2所示网络架构中的RADIUS209的消息触发执行步骤301，该触发过程也可以是CP接收到来自终端用户的请求消息，即CP接收到来自终端用户通过图2所示网络架构中的AN201所发送的请求消息触发执行步骤301，CP还可以通过其他的方式实现该触发过程，此处不做限定。
302、USF确定出关联于终端用户的目标UP；
本实施例中，USF根据步骤301得到的终端用户信息，该第一消息指示该USF根据该终端用户信息调度该终端用户，USF进一步根据该终端用户信息确定出关联于该终端用户的目标UP。
其中，USF是UP迁移的策略控制组件，具体可以根据终端用户的SLA以及负载等情况产生迁移策略，通知CP以及SF对用户进行迁移，实现网络的负载均和以及SLA需求执行对应的调度，例如USF可以管理多个vBNG-UP包括图2中示例的pUP1(203)、pUP2(204)、vUP3(205)，USF可以预先对不同的vBNG-UP一一分配对应的SLA信息，即建立多个vBNG-UP的标识与多个SLA之间的映射关系。
由步骤301得知，CP可以通过CP向USF发送的第一消息中，对操作402所标识不同的操作字段可以对应于不同的场景，与之对应的，USF根据CP发送的第一消息的具体内容可以通过多种方式确定出关联于终端用户的目标UP，下面将进行详细的描述：
一、当应用于调度该终端用户上线的场景时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为用户上线的信息向USF指示调度该终端用户上 线。此时，USF通过多个vBNG-UP的标识与多个SLA之间的映射关系，确定出对应于该初始SLA信息的UP为目标UP。
二、当应用于更新终端用户的SLA的场景时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为更新用户SLA的信息向USF指示更新该终端用户的SLA。此时，USF通过多个vBNG-UP的标识与多个SLA之间的映射关系，确定出对应于该更新SLA信息的UP为目标UP。
三、当应用于调度该终端用户下线的场景时，CP可以在CP与USF之间的通信接口中，通过第一对象字段所包含的用户接入信息向USF指示所要调度的终端用户，通过第一操作字段所包含的第一指示操作类型为用户下线的信息向USF指示调度该终端用户下线。此时，USF将该用户接入信息对应的需要调度下线终端用户当前所在的UP确定为目标UP。此后，在步骤302USF确定出关联于终端用户的目标UP之后，USF删除该终端用户对应的连接信息，具体来说，终端用户对应的连接信息可以是该USF中存储的关联于该终端用户的用户接入信息和/或SLA信息，从而，通过USF实现终端用户对应的连接信息的存储，可以减少控制面实体CP的存储负担，提升通信性能。
此外，不同的用户接入信息可以指示一个或多个不同的终端用户，具体用户接入信息的多种实现方式可以参考前述步骤301的描述，此处不再赘述。在步骤302中，USF可以根据该不同的用户接入信息确定出一个或多个不同的终端用户各自一一对应的目标UP ID。
303、USF向CP发送第一请求消息；
本实施例中，USF在步骤302得到目标UP的标识之后，可以向CP发送第一请求消息，其中，该第一请求消息包含有该目标UP的标识，用于向该CP指示处理该终端用户与目标UP之间连接。
其中，在图2所示网络架构中，在AN201接入网后面增加SF202设备，该设备与UP之间建立二层隧道，其中，SF202与AN201接入的物理接口划分不同的子接口，不同子接口中匹配不同的VLAN/QinQ范围，也就是说，不同子接口对应不同二层UP隧道，终端用户通过不同的SF接入不同的UP。因此，在步骤303的实现过程中，目标UP的标识用于标识该UP，在具体的实现上，可以是该目标UP自身的标识，也可以是通过与目标UP对应的SF子接口标识，此处不做限定。
由步骤301得知，CP可以通过CP向USF发送的第一消息中，对操作402所标识不同的操作字段可以对应于不同的场景，与之对应的，USF向CP发送第一请求消息也可以通过不同的操作字段以标识对应于不同的场景，下面将进行详细的描述：
一、当应用于调度终端用户上线的场景中，此时，在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息(steering request)，该第二操作属性字段包括该目标UP的标识。具体来说，当调度该终端用户上线时，CP可以在USF与CP之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为用户上线的信息向USF指示调度该终端用户上线；此后，USF可以在USF与CP 之间的通信接口中，即步骤303发送的第一请求消息中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第一迁移请求的信息向CP指示将该终端用户进行上线迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP。
二、当应用于更新终端用户的SLA的场景中，此时，该第一操作字段包括指示操作类型为更新用户SLA的信息；在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息(steering request)，该第二操作属性字段包括该目标UP的标识。具体来说，当CP更新终端用户的SLA时，CP可以在USF与CP之间的通信接口中，通过第一对象字段所包含的用户接入信息和SLA信息向USF指示所要调度的终端用户，通过第一操作字段所包含的指示操作类型为更新用户SLA的信息向USF指示更新该终端用户的SLA；此后，USF可以在USF与CP之间的通信接口中，即步骤303发送的第一请求消息中，通过第二对象字段中的用户接入信息向CP指示当前调度的终端用户，通过第二操作字段所包含的指示操作类型为第二迁移请求的信息向CP指示将该终端用户基于更新SLA进行迁移，通过第二操作属性字段所包含的目标UP的标识向CP指示将该终端用户迁移至该目标UP。
三、当应用于调度终端用户下线的场景时，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。此时，由步骤302可得，USF将该用户接入信息对应的需要调度下线终端用户当前所在的UP确定为目标UP，步骤303中USF向CP发送第一请求消息可以为通知消息，用于向该CP通知该USF已删除该终端设备对应的连接信息，此外，应用于CP调度终端用户下线的场景时步骤303可以不执行。
304、CP处理终端用户与目标UP之间的连接；
本实施例中，CP在步骤303得到目标UP的标识之后，可以根据该目标UP的标识进一步处理终端用户与目标UP之间的连接。
具体来说，以图2中的CP208为例，CP208为vBNG业务控制平面，用户拨号协议处理，与，AAA服务器交互进行用户认证、计费、授权，可以根据用户账号识别SLA，通过用户拨号协议中携带的接入线路信息，通知USF207用户上线并等待USF指导用户迁移，将用户映射到对应UP接入的端口上。同时，CP208将用户表项信息下发到对应UP，对应UP生成该用户的转发表项，并向外发布路由。对应于步骤304中CP处理终端用户与目标UP之间的连接的实现过程，CP根据该目标UP的标识处理该终端用户与该目标UP之间的连接具体可以包括：该CP向该目标UP发送该终端用户的标识，从而，使得目标UP得知调度该终端用户，实现处理该终端用户与该目标UP之间的动态调度。
作为一个可选步骤，在步骤304中，CP处理终端用户与目标UP之间的连接过程中，可以将该终端用户调度到该目标UP对应的SF子接口上，通过SDN控制器可以控制SF对接入该SF中不同SF子接口的终端用户进行调度，因此，CP可以向SDN控制器发送对应的消息将该终端用户调度至该目标UP，从而在BNG设备中通过USF实现终端用户的调度策略的确定的基础上，再通过该CP实现终端用户的动态调度，可以在一定程度上减少控制面实体 CP的处理负担，提升通信性能。
305、CP向USF发送第一响应消息；
本实施例中，CP在步骤304处理终端用户与目标UP之间的连接之后，CP可以向USF发送第一响应消息，该第一响应消息(steering ack)用于指示该CP已处理该终端用户与该目标UP之间的连接。其中，步骤305为可选步骤。
本实施例中，通过步骤301至步骤305中CP与USF之间的交互过程，对于CP来说，CP向该USF发送第一消息，该第一消息包括终端用户信息，指示该USF根据该终端用户信息调度该终端用户，然后，该CP根据USF发送的第一请求消息所携带的目标UP的标识确定将该终端用户调度到该目标UP，也就是说，通过USF确定出终端用户的调度策略，此后，该CP进一步根据该目标UP标识处理该终端用户与该目标UP之间的连接，从而在BNG设备中通过USF实现终端用户的调度策略的确定，减少控制面实体CP的处理负担，提升通信性能。
306、USF确定出关联于终端用户的目标SF；
本实施例中，在步骤301接收到来自CP的第一消息之后，该USF进一步根据该第一消息中携带的用户接入信息确定出关联于该终端用户的目标SF。
具体地，在图2所示网络架构中，在AN201接入网后面增加SF202设备，该设备与UP之间建立二层隧道，其中，SF202与AN201接入的物理接口划分不同的子接口，不同子接口中匹配不同的VLAN/QinQ范围，也就是说，不同子接口对应不同二层UP隧道，终端用户通过不同的SF接入不同的UP。因此，USF可以根据步骤301得到的第一消息中携带的用户接入信息确定出关联于该终端用户的目标SF，具体在步骤301中来自CP的第一消息中可以携带有该目标SF的标识，或者是在CP向该USF发送的其它消息中携带有该目标SF的标识，或者是在该USF中预设有终端用户与SF之间的映射关系，USF在该映射关系中确定出目标SF，还可以通过其它方式确定出关联于该终端用户的目标SF，此处不做限定。
此外，步骤306的执行需要在步骤301之后，而与步骤302至步骤305之间并无必然的前后顺序关系，此处不做限定。
307、USF向SDN控制器发送第二请求消息；
本实施例中，USF向SDN控制器发送第二请求消息，其中，USF根据步骤301得到的第一消息可以进一步确定关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；此后，该USF向该SDN控制器发送第二请求消息，该第二请求消息包括该VLAN标识、该目标SF的标识和该目标UP的标识。
其中，由步骤301和步骤302可得，用户接入信息可以指示一个或多个终端用户，相应的，在步骤307中，通过该第一消息确定出来的VLAN标识也可以对应于一个或多个终端用户。具体的，在步骤303的实现过程中，目标UP的标识用于标识该目标UP，在具体的实现上，可以是该目标UP自身的标识，也可以是通过与目标UP对应的SF子接口标识，此处不做限定。此处以该目标UP对应的SF子接口标识作为该目标UP的标识为例进行说明，此时，该目标UP对应的SF子接口包含于该目标SF。可选地，该第二请求消息中还可以包括该终端设备的源UP的标识，用于向该SDN控制器指示在该目标SF中将该VLAN标识对应 的终端用户从该源UP标识对应的UP调离，类似的，该源UP的标识用于标识该终端设备原来接入的UP，此处可以是该源UP自身的标识，也可以是通过与源UP对应的源SF子接口标识，此处不做限定。
在一种具体的实现方式中，USF与SDN控制器之间的可以通过第二通信接口进行数据交互，该第一通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得USF与SDN控制器可以通过该第二通信接口对齐两者所传输的消息内容，提升通信效率。
在一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。具体来说，USF与SDN控制器之间可以通过NETCONF、RESTFUL或者是其它的接口实现通信，其中，对象字段用于表示所传输消息对应操作的终端用户的标识、操作字段用于表示所传输消息对应操作的操作类型、操作属性字段用于表示所传输消息对应操作的操作端口。其中，在该USF与SDN控制器之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，USF向SDN控制器发送的第二请求消息可以使用包含有该至少三个字段，使得USF与SDN控制器可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。本实施例及后续实施例中，以USF向SDN控制器发送的消息中包含有第三对象字段、第三操作字段、第三操作属性字段为例进行说明。
需要说明的是，具体来说，“对齐”是指不同的通信设备之间通过有线或者无线的接口存在交互消息时，两者对于交互消息收发的载波频率、交互消息类型的确定、交互消息中所承载的字段信息的含义、或者是交互消息的其它配置的理解一致。具体来说，USF和SDN控制器可以根据两者接口所传输的消息中携带的该“至少三个字段”使得USF和SDN控制器对该“至少三个字段”所承载的字段信息的含义的理解一致。
示例性的，USF和SDN控制器之间的通信接口所采用的数据模型可以如图5所示，USF和SDN控制器之间的接口的数据模型的至少三个字段中，分别以对象501、操作502、操作属性503为示例进行说明，显然，该至少三个字段还可以通过其它的名称所替代表示，例如可以通过终端、实现、实现属性来表示对象字段、操作字段、操作属性字段，可以通过A字段、B字段、C字段来表示对象字段、操作字段、操作属性字段，还可以通过其它方式来表示对象字段、操作字段、操作属性字段，此处不做限定。
具体来说，在步骤307中所传输的第二请求消息中，该对象501(即对象字段)中可以携带有VLAN标识。下面将对操作502所标识不同的操作字段应用于不同的场景进行说明：
一、当USF根据第一消息确定调度该终端用户上线时，USF可以在USF与SDN控制器之间的通信接口中，通过第三对象字段所包含的VLAN标识向SDN控制器指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第三迁移请求的信息(steering request)向SDN控制器指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP(源接口属性：SF ID，SF侧子接口ID，可以表示该操作的源接口；目的接口属性：目标SF ID,SF侧子接口ID，可以表示该操作的目的接口)。
二、当USF根据第一消息确定更新终端用户的连接时，USF可以在USF与SDN控制器 之间的通信接口中，通过第三对象字段所包含的VLAN标识向USF指示所要调度的终端用户，通过第三操作字段所包含的指示操作类型为第四迁移请求的信息(steering request)向SDN控制器指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标SF的标识和目标UP的标识向SDN控制器指示在该目标SF中将该终端用户调度至该目标UP(源接口属性：SF ID，SF侧子接口ID，可以表示该操作的源接口；目的接口属性：目标SF ID,SF侧子接口ID，可以表示该操作的目的接口)。
本实施例中，将终端用户调度到目标UP的过程中，可以将该终端用户调度到该目标UP对应的SF子接口上，通过SDN控制器可以控制SF对接入该SF中不同SF子接口的终端用户进行调度，因此，USF可以第二请求消息实现在SDN控制器将该终端用户调度至该目标UP，从而在BNG设备中通过USF实现终端用户的调度策略的确定的基础上，再通过该USF实现终端用户的动态调度，可以进一步减少控制面实体CP的处理负担，提升通信性能。
308、SDN控制器向SF发送第三请求消息；
本实施例中，SDN控制器在步骤307接收来自USF的第二请求消息之后，SDN控制器根据该第二请求消息在该目标SF中处理该VLAN标识对应的终端用户和该目标UP之间的连接。
其中，由步骤307中的内容可知，该VLAN标识可以对应标识一个或多个终端用户。具体来说，SDN控制器根据该第二请求消息在该目标SF中处理该VLAN标识对应的终端用户和该目标UP之间的连接的过程可以是该SDN控制器生成第三请求消息并向SF发送，其中，该第三请求消息包括该终端用户的VLAN标识和目标UP的标识。
本实施例中，以图2所示网络架构为例，该BNG还可以包括迁移功能实体SF，SF中可以存在多个不同的SF子接口，其中，不同SF子接口对应不同二层UP隧道，即终端用户通过不同的SF接入不同的UP，因此，作为SF的控制器，该SDN控制器在接收到来自USF的第二请求消息之后，该SDN控制器根据该第二请求消息处理该终端用户和该目标UP之间的连接可以通过步骤308至步骤310来实现。
在一种具体的实现方式中，SDN控制器与SF之间的可以通过第三通信接口进行数据交互，该第一通信接口可以包括NETCONF、RESTFUL或者是其它的通信接口，使得SDN控制器与SF控制器可以通过该第三通信接口对齐两者所传输的消息内容，提升通信效率。
在一种具体的实现方式中，第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。具体来说，SDN控制器与SF之间可以通过NETCONF、RESTFUL或者是其它的接口实现通信，其中，对象字段用于表示所传输消息对应操作的终端用户的标识、操作字段用于表示所传输消息对应操作的操作类型、操作属性字段用于表示所传输消息对应操作的操作端口。其中，在该SDN控制器与SF之间的通信接口中，可以使用的数据模型包括至少三个字段，即对象字段、操作字段、操作属性字段，此时，SDN控制器向SF发送的第三请求消息可以使用包含有该至少三个字段，使得SDN控制器与SF可以根据该至少三个字段对齐两者所传输的消息内容，提升通信效率。本实施例及后续实施例中，以SDN控制器向SF发送的消息中包含有第四对象字段、第四操作字段、第四操作属性字段为例进行说明。
需要说明的是，具体来说，“对齐”是指不同的通信设备之间通过有线或者无线的接口存在交互消息时，两者对于交互消息收发的载波频率、交互消息类型的确定、交互消息中所承载的字段信息的含义、或者是交互消息的其它配置的理解一致。具体来说，SDN控制器与SF可以根据两者接口所传输的消息中携带的该“至少三个字段”使得SDN控制器与SF对该“至少三个字段”所承载的字段信息的含义的理解一致。
示例性的，SDN控制器与SF之间的通信接口所采用的数据模型可以如图6所示，SDN控制器与SF之间的接口的数据模型的至少三个字段中，对象字段、操作字段、操作属性字段分别以对象601、操作602、操作属性603为示例进行说明，显然，该至少三个字段还可以通过其它的名称所替代表示，例如可以通过终端、实现、实现属性来表示对象字段、操作字段、操作属性字段，可以通过A字段、B字段、C字段来表示对象字段、操作字段、操作属性字段，还可以通过其它方式来表示对象字段、操作字段、操作属性字段，此处不做限定。
此外，在步骤307中，USF可以向SDN控制器发送不同的第二请求消息，以支持调度该终端用户实现连接的不同过程，因此，在步骤308中，SDN控制器也可以通过多种方式向SF发送第三请求消息，下面将进行详细的描述：
一、当应用于SDN控制器调度终端用户上线的场景时，即步骤307中得到的第二请求消息中携带有指示操作类型为第三迁移请求的信息，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括目标UP的标识。具体来说，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户进行上线迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP(源接口属性：SF ID，SF侧子接口ID，可以表示该操作的源接口；目的接口属性：目标SF ID,SF侧子接口ID，可以表示该操作的目的接口)，从而实现调度该终端用户在该BNG中的上线连接。
二、当应用于SDN控制器更新终端用户连接的场景时，即步骤307中得到的第二请求消息中携带有指示操作类型为第四迁移请求的信息，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括目标UP的标识。具体来说，SDN控制器可以在SDN控制器与SF之间的通信接口中，通过第四对象字段所包含的VLAN标识向SF指示所要调度的终端用户，通过第四操作字段所包含的指示操作类型为第五迁移请求的信息向SF指示将该终端用户基于更新SLA进行迁移，通过第三操作属性字段所包含的目标UP的标识向SF指示将该终端用户调度至该目标UP(源接口属性：SF ID，SF侧子接口ID，可以表示该操作的源接口；目的接口属性：目标SF ID,SF侧子接口ID，可以表示该操作的目的接口)，从而实现调度该终端用户在该BNG中的连接更新。
309、SF处理终端用户与目标UP之间的连接；
本实施例中，SF在步骤308中得到目标UP和标识和终端用户的标识之后，该SF处理 终端用户与目标UP之间的连接。
具体的，SF中包括多个SF接口，包括该目标UP，不同的SF接口对应于不同的UP，步骤309的执行过程具体为该SF处理该终端用户与多个SF接口之间的连接。
此外，在步骤308中，SDN控制器可以向SF发送不同的第三请求消息，以支持调度该终端用户实现连接的不同过程，因此，在步骤309中，SF也可以通过不同第三请求消息实现不同的调度过程，下面将进行详细的描述：
一、当应用于SDN控制器调度终端用户上线的场景时，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括目标UP的标识。此时，SF在步骤309中将该终端用户从该目标UP调度上线，从而在该BNG中实现终端用户的上线调度。
二、当应用于SDN控制器调度终端用户的连接更新的场景时，此时，在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括目标UP的标识。此时，SF在步骤309中将该终端用户调度至该目标UP，从而实现调度该终端用户在该BNG中的连接更新。
310、SF向SDN控制器发送第三响应消息；
本实施例中，当该SF执行步骤309之后，该SF可以向该SDN控制器发送第三响应消息，其中，该第三响应消息用于指示SF已处理终端用户与目标UP之间的连接。其中，步骤310为可选步骤。
311、SDN控制器向USF发送第二响应消息。
本实施例中，当SDN控制器在步骤310中接收到来自SF的第三响应消息之后，该SDN控制器向USF发送第二响应消息，该第二响应消息用于指示该SDN控制器已在该目标SF中处理终端用户与目标UP之间的连接。其中，步骤311为可选步骤。
本实施例中，通过步骤306至步骤311的过程，将终端用户调度到目标UP的过程中，可以将该终端用户调度到该目标UP对应的SF子接口上，通过SDN控制器可以控制SF对接入该SF中不同SF子接口的终端用户进行调度，因此，USF可以第二请求消息实现在SDN控制器将该终端用户调度至该目标UP，从而在BNG设备中(在步骤301至步骤305中)通过USF实现终端用户的调度策略的确定的基础上，再通过该USF实现终端用户的动态调度，可以进一步减少控制面实体CP的处理负担，提升通信性能。
本实施例中，具体细化了USF/CP/SDN/SF之间的接口和数据模型，实现了将用户按照SLA区分，突破了现有网络用户接入网关固定的局限，只能在单台SF上区分用户SLA的问题，通过本发明方案，用户可以动态接入不同SF，不仅仅可以让运营商提供差异化的服务，获得更多的收益，还可以调整SF的负载。
以上描述了本申请实施例中的通信方法，下面结合附图介绍本申请实施例提供的通信装置。
请参阅图7，本申请实施例中的一种控制面实体CP700，所述控制面实体CP700可以为前述图1所示实施例中的CP101，图2所示实施例中的CP208，以及图3所示实施例中的CP。
在一种具体的实施方式中，该控制面实体CP700包括：
发送单元702，用于向该USF发送第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
接收单元701，用于接收来自该USF的第一请求消息，该第一请求消息包括目标UP的标识，该目标UP关联于该终端用户；具体实现方式请参考图3所示实施例中步骤303的详细描述，此处不再赘述。
处理单元703，用于根据该目标UP的标识处理该终端用户与该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤304的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，
在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，
在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
此外，在另一种具体的实施方式中，该控制面实体CP700包括：
接收单元701，用于获取下线请求消息，该下线请求消息包括终端用户信息，该终端用户信息包括用户接入信息；
发送单元702，用于向该USF发送第一消息，该第一消息包括第一指示操作类型为用户下线的信息和该用户接入信息。具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息可以包括第一对象字段、第一操作字段，以及 第一操作属性字段，该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述控制面实体CP700的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
请参阅图8，本申请实施例中的一种用户面选择功能实体USF800，该USF800可以为前述图2所示实施例中的USF207，以及图3所示实施例中的USF。
在一种具体的实施方式中，该用户面选择功能实体USF800可以包括：
接收单元801，用于接收来自该CP的第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
处理单元803，用于根据该第一消息确定关联于该终端用户的目标UP；具体实现方式请参考图3所示实施例中步骤302的详细描述，此处不再赘述。
发送单元802，用于向该CP发送第一请求消息，该第一请求消息包括该目标UP的标识。具体实现方式请参考图3所示实施例中步骤303的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指 示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该BNG还包括软件定义网络SDN控制器，
该处理单元803，还用于根据该第一消息确定关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；具体实现方式请参考图3所示实施例中步骤306的详细描述，此处不再赘述。
该发送单元802，还用于向该SDN控制器发送第二请求消息，该第二请求消息包括该VLAN标识、该目标SF的标识和该目标UP的标识。具体实现方式请参考图3所示实施例中步骤307的详细描述，此处不再赘述。
在一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第三迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第四迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
此外，在另一种具体的实施方式中，该USF800包括：
接收单元801，用于接收来自该CP的第一消息，该第一消息包括第一指示操作类型为用户下线的信息和该用户接入信息；具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
处理单元803，用于根据该第一消息确定出关联于该终端用户的目标UP，关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；具体实现方式请参考图3所示实施例中步骤302的详细描述，此处不再赘述。
处理单元803，还用于删除该终端用户对应的连接信息。具体实现方式请参考图3所示实施例中步骤303的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，可以应用于CP调度终端用户下线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述用户面选择功能实体USF800的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
请参阅图9，本申请实施例中的一种软件定义网络SDN控制器900，SDN控制器900可以为前述图2所示实施例中的SDN控制器206，以及图3所示实施例中的SDN控制器。
在一种具体的实施方式中，该SDN控制器900可以包括：
收发单元901，用于接收来自该USF的第二请求消息，该第二请求消息包括虚拟局域网VLAN标识、目标SF的标识和目标UP的标识；具体实现方式请参考图3所示实施例中步骤307的详细描述，此处不再赘述。
处理单元902，用于根据该第二请求消息在该目标SF中处理该虚拟局域网VLAN标识对应的终端用户和该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
在一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第三迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第四迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该BNG还包括该目标SF，该SDN控制器根据该第二请求消息在该目标SF中处理该虚拟局域网VLAN标识对应的终端用户和该目标UP之间的连接包括：
该SDN控制器向该目标SF发送第三请求消息，该第三请求消息包括该VLAN标识和该目标UP的标识。具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
在一种具体的实现方式中，该第三请求消息包括第四对象字段、第四操作字段，以及 第四操作属性字段。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第五迁移请求的信息，该第四操作属性字段包括该目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第六迁移请求的信息，该第四操作属性字段包括该目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述SDN控制器900的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
请参阅图10，本申请实施例中的一种迁移功能实体SF1000，迁移功能实体SF1000可以为前述图2所示实施例中的SF202，以及图3所示实施例中的SF。
在一种具体的实施方式中，该SF1000可以包括：
收发单元1001，用于接收来自SDN控制器的第三请求消息，该第三请求消息包括终端用户的标识和目标UP的标识；具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
处理单元1002，用于根据该第三请求消息处理该终端用户与该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤309的详细描述，此处不再赘述。
在一种具体的实现方式中，该第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第五迁移请求的信息，该第四操作属性字段包括目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第六迁移请求的信息，该第四操作属性字段包括目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述SF1000的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
请参阅图11，为本申请的实施例提供的上述实施例中所涉及的通信装置1100的一种具体的逻辑结构示意图，该通信装置1100可以包括但不限于处理器1101、通信端口1102、存储器1103、总线1104，在本申请的实施例中，处理器1101用于对通信装置1100的动作进行控制处理。
作为一种具体的实现方式，该通信装置1100用于执行前述图1中CP101、图2中CP208、图3中CP、图7中CP700所示实施例中CP实现的功能。此外，当图7所示实施例中的各单元为软件实现的功能模块时，这些软件功能模块可以存储在该存储器1103中，当处理器1101执行该存储器1103中的软件代码时促使该控制面实体CP执行如下步骤：
向该USF发送第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；具体实现方式请参考图3所示实施例中步骤301的详细 描述，此处不再赘述。
接收来自该USF的第一请求消息，该第一请求消息包括目标UP的标识，该目标UP关联于该终端用户；具体实现方式请参考图3所示实施例中步骤303的详细描述，此处不再赘述。
根据该目标UP的标识处理该终端用户与该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤304的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，
在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，
在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
此外，在另一种具体的实施方式中，该控制面实体CP还用于执行以下步骤：
获取下线请求消息，该下线请求消息包括终端用户信息，该终端用户信息包括用户接入信息；
向该USF发送第一消息，该第一消息包括第一指示操作类型为用户下线的信息和该用户接入信息。具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息可以包括第一对象字段、第一操作字段，以及第一操作属性字段，该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息； 该第一操作字段包括第一指示操作类型为用户下线的信息。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述控制面实体CP执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
作为一种具体的实现方式，该通信装置1100用于执行前述图2中USF207、图3中USF、图8中USF800所示实施例中USF实现的功能。此外，当图8所示实施例中的各单元为软件实现的功能模块时，这些软件功能模块可以存储在该存储器1103中，当处理器1101执行该存储器1103中的软件代码时促使该控制面实体CP执行如下步骤：
接收来自该CP的第一消息，该第一消息包括终端用户信息，该终端用户信息包括用户接入信息和服务等级协议SLA信息；具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
根据该第一消息确定关联于该终端用户的目标UP；具体实现方式请参考图3所示实施例中步骤302的详细描述，此处不再赘述。
向该CP发送第一请求消息，该第一请求消息包括该目标UP的标识。具体实现方式请参考图3所示实施例中步骤303的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括初始SLA信息；该第一操作字段包括指示操作类型为用户上线的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第一迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第一消息中，该第一对象字段包括该用户接入信息和该SLA信息，该SLA信息包括更新SLA信息；该第一操作字段包括指示操作类型为更新用户SLA的信息；
在该第一请求消息中，该第二对象字段包括该用户接入信息，该第二操作字段包括指示操作类型为第二迁移请求的信息，该第二操作属性字段包括该目标UP的标识。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该USF还用于：
根据该第一消息确定关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；
向该SDN控制器发送第二请求消息，该第二请求消息包括该VLAN标识、该目标SF的标识和该目标UP的标识。具体实现方式请参考图3所示实施例中步骤307的详细描述，此处不再赘述。
在一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第三迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第四迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
此外，在另一种具体的实施方式中，该USF还用于执行以下步骤：
接收来自该CP的第一消息，该第一消息包括第一指示操作类型为用户下线的信息和该用户接入信息；具体实现方式请参考图3所示实施例中步骤301的详细描述，此处不再赘述。
根据该第一消息确定出关联于该终端用户的目标UP，关联于该终端用户的目标迁移功能实体SF的标识，以及该终端用户的虚拟局域网VLAN标识；具体实现方式请参考图3所示实施例中步骤302的详细描述，此处不再赘述。
删除该终端用户对应的连接信息。具体实现方式请参考图3所示实施例中步骤302的详细描述，此处不再赘述。
在一种具体的实现方式中，该第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；该第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，可以应用于CP调度终端用户下线的场景中，此时，在该第一消息中，该第一对象字段包括该用户接入信息；该第一操作字段包括第一指示操作类型为用户下线的信息。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该用户接入信息还包括以下至少一个：
网段信息、组UP ID、访问接口ID。具体实现方式请参考图4所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述用户面选择功能实体USF800的单元的信息执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
作为一种具体的实现方式，该通信装置1100用于执行前述图2中SDN控制器206、图3中SDN控制器、图9中SDN控制器900所示实施例中SDN控制器实现的功能。此外，当图9所示实施例中的各单元为软件实现的功能模块时，这些软件功能模块可以存储在该存储器1103中，当处理器1101执行该存储器1103中的软件代码时促使该SDN控制器执行如下步骤：
接收来自该USF的第二请求消息，该第二请求消息包括虚拟局域网VLAN标识、目标SF的标识和目标UP的标识；具体实现方式请参考图3所示实施例中步骤307的详细描述，此处不再赘述。
根据该第二请求消息在该目标SF中处理该虚拟局域网VLAN标识对应的终端用户和该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
在一种具体的实现方式中，该第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第三迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第二请求消息中，该第三对象字段包括该VLAN标识，该第三操作字段包括指示操作类型为第四迁移请求的信息，该第三操作属性字段包括该目标SF的标识和该目标UP的标识。具体实现方式请参考图5所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，该BNG还包括该目标SF，该SDN控制器根据该第二请求消息在该目标SF中处理该虚拟局域网VLAN标识对应的终端用户和该目标UP之间的连接包括：
该SDN控制器向该目标SF发送第三请求消息，该第三请求消息包括该VLAN标识和该目标UP的标识。具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
在一种具体的实现方式中，该第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第五迁移请求的信息，该第四操作属性字段包括该目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第六迁移请求的信息，该第四操作属性字段包括该目标UP的标识。具体实现方式请参考图6所示实施例中的详细描述，此处不再赘述。
需要说明的是，上述SDN控制器的执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
作为一种具体的实现方式，该通信装置1100用于执行前述图2中SF202、图3中SF、图10中SF1000所示实施例中SF实现的功能。此外，当图10所示实施例中的各单元为软件实现的功能模块时，这些软件功能模块可以存储在该存储器1103中，当处理器1101执行该存储器1103中的软件代码时促使该SF执行如下步骤：
接收来自SDN控制器的第三请求消息，该第三请求消息包括终端用户的标识和目标UP的标识；具体实现方式请参考图3所示实施例中步骤308的详细描述，此处不再赘述。
根据该第三请求消息处理该终端用户与该目标UP之间的连接。具体实现方式请参考图3所示实施例中步骤309的详细描述，此处不再赘述。
在一种具体的实现方式中，该第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。具体实现方式请参考图6示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第五迁移请求的信息，该第四操作属性字段包括目标UP的标识。具体实现方式请参考图6示实施例中的详细描述，此处不再赘述。
在一种具体的实现方式中，在该第三请求消息中，该第四对象字段包括该VLAN标识，该第四操作字段包括指示操作类型为第六迁移请求的信息，该第四操作属性字段包括目标UP的标识。具体实现方式请参考图6示实施例中的详细描述，此处不再赘述。
需要说明的是，上述SF的执行过程等内容，具体可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
此外，处理器1101可以是中央处理器单元，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。该处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理器和微处理器的组合等等。所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
请参阅图12，为本申请的实施例提供的上述实施例中所涉及的宽带网络网关BNG1200的一种具体的逻辑结构示意图，该宽带网络网关BNG1200可以包括但不限于控制面实体CP1201、用户面选择功能实体USF1202。作为一种具体的实施方式，该BNG1200还可以包括SDN控制器1203及迁移功能实体SF1204，其中，控制面实体CP1201、用户面选择功能 实体USF1202、SDN控制器1203及迁移功能实体SF1204的实现具体可以参考前述方法实施例中的对应过程，在此不再赘述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本申请实施例还提供一种存储一个或多个计算机执行指令的计算机可读存储介质，在所述计算机执行指令被处理器执行时，所述处理器执行如前述方法实施例任意一种具体的实现方式所述的方法。
本申请实施例还提供一种存储一个或多个计算机执行指令的计算机程序产品，在所述计算机执行指令被所述处理器执行时，所述处理器执行上述前述方法实施例任意一种具体实现方式的方法。
本申请还提供了一种芯片系统，该芯片系统包括处理器，该处理器可以包括基带处理器(BP，baseband processor)，示例性地，该处理器还可以包括应用处理器(AP，application processor)，该处理器用于支持通信装置实现上述前述方法实施例任意一种具体的实现方式中所涉及的功能。在一种具体的设计中，芯片系统还可以包括存储器，存储器，用于保存必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (55)

  1. 一种通信方法，其特征在于，应用于控制面实体CP，所述CP包含于宽带网络网关BNG，所述BNG还包括用户面选择功能实体USF，所述方法包括：
    所述CP向所述USF发送第一消息，所述第一消息包括终端用户信息，所述终端用户信息包括用户接入信息和服务等级协议SLA信息；
    所述CP接收来自所述USF的第一请求消息，所述第一请求消息包括目标用户面实体UP的标识，所述目标UP关联于所述终端用户；
    所述CP根据所述目标UP的标识处理所述终端用户与所述目标UP之间的连接。
  2. 根据权利要求1所述的方法，其特征在于，所述第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
    所述第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
  3. 根据权利要求2所述的方法，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括初始SLA信息；所述第一操作字段包括指示操作类型为用户上线的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第一迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  4. 根据权利要求2所述的方法，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括更新SLA信息；所述第一操作字段包括指示操作类型为更新用户SLA的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第二迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述用户接入信息包括迁移功能实体SF身份标识ID、QINQ信息、初始用户面实体UP ID。
  6. 根据权利要求5所述的方法，其特征在于，所述用户接入信息还包括以下至少一个：
    网段信息、组UP ID、访问接口ID。
  7. 一种通信方法，其特征在于，应用于用户面选择功能实体USF，所述USF包含于宽带网络网关BNG，所述BNG还包括控制面实体CP，所述方法包括：
    所述USF接收来自所述CP的第一消息，所述第一消息包括终端用户信息，所述终端用户信息包括用户接入信息和服务等级协议SLA信息；
    所述USF根据所述第一消息确定关联于所述终端用户的目标用户面实体UP；
    所述USF向所述CP发送第一请求消息，所述第一请求消息包括所述目标UP的标识。
  8. 根据权利要求7所述的方法，其特征在于，所述第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
    所述第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
  9. 根据权利要求8所述的方法，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括初始SLA信息；所述第一操作字段包括指示操作类型为用户上线的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第一迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  10. 根据权利要求8所述的方法，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括更新SLA信息；所述第一操作字段包括指示操作类型为更新用户SLA的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第二迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  11. 根据权利要求7至10任一项所述的方法，其特征在于，所述用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。
  12. 根据权利要求11所述的方法，其特征在于，所述用户接入信息还包括以下至少一个：
    网段信息、组UP ID、访问接口ID。
  13. 根据权利要求7至10任一项所述的方法，其特征在于，所述BNG还包括软件定义网络SDN控制器，在所述USF接收来自所述CP的第一消息之后，所述方法还包括：
    所述USF根据所述第一消息确定关联于所述终端用户的目标迁移功能实体SF的标识，以及所述终端用户的虚拟局域网VLAN标识；
    所述USF向所述SDN控制器发送第二请求消息，所述第二请求消息包括所述VLAN标识、所述目标SF的标识和所述目标UP的标识。
  14. 根据权利要求13所述的方法，其特征在于，所述第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
  15. 根据权利要求14所述的方法，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第三迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  16. 根据权利要求14所述的方法，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第四迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  17. 一种通信方法，其特征在于，应用于软件定义网络SDN控制器，所述SDN控制器包含于宽带网络网关BNG，所述BNG还包括控制面实体CP和用户面选择功能实体USF，所述方法包括：
    所述SDN控制器接收来自所述USF的第二请求消息，所述第二请求消息包括虚拟局域网VLAN标识、目标SF的标识和目标用户面实体UP的标识；
    所述SDN控制器根据所述第二请求消息在所述目标SF中处理所述虚拟局域网VLAN标识对应的终端用户和所述目标UP之间的连接。
  18. 根据权利要求17所述的方法，其特征在于，所述第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
  19. 根据权利要求18所述的方法，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第三迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  20. 根据权利要求18所述的方法，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第四迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  21. 根据权利要求17至20任一项所述的方法，其特征在于，所述BNG还包括所述目标SF，所述SDN控制器根据所述第二请求消息在所述目标SF中处理所述虚拟局域网VLAN标识对应的终端用户和所述目标UP之间的连接包括：
    所述SDN控制器向所述目标SF发送第三请求消息，所述第三请求消息包括所述VLAN标识和所述目标UP的标识。
  22. 根据权利要求21所述的方法，其特征在于，所述第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。
  23. 根据权利要求22所述的方法，其特征在于，
    在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括所述目标UP的标识。
  24. 根据权利要求22所述的方法，其特征在于，
    在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括所述目标UP的标识。
  25. 一种控制面实体CP，其特征在于，所述CP包含于宽带网络网关BNG，所述BNG还包括用户面选择功能实体USF，所述CP包括：
    发送单元，用于向所述USF发送第一消息，所述第一消息包括终端用户信息，所述终端用户信息包括用户接入信息和服务等级协议SLA信息；
    接收单元，用于接收来自所述USF的第一请求消息，所述第一请求消息包括目标用户面实体UP的标识，所述目标UP关联于所述终端用户；
    处理单元，用于根据所述目标UP的标识处理所述终端用户与所述目标UP之间的连接。
  26. 根据权利要求25所述的CP，其特征在于，所述第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
    所述第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
  27. 根据权利要求26所述的CP，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述 SLA信息包括初始SLA信息；所述第一操作字段包括指示操作类型为用户上线的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第一迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  28. 根据权利要求26所述的CP，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括更新SLA信息；所述第一操作字段包括指示操作类型为更新用户SLA的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第二迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  29. 根据权利要求25至28任一项所述的CP，其特征在于，所述用户接入信息包括迁移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。
  30. 根据权利要求29所述的CP，其特征在于，所述用户接入信息还包括以下至少一个：
    网段信息、组UP ID、访问接口ID。
  31. 一种用户面选择功能实体USF，其特征在于，所述USF包含于宽带网络网关BNG，所述BNG还包括控制面实体CP，所述USF包括：
    接收单元，用于接收来自所述CP的第一消息，所述第一消息包括终端用户信息，所述终端用户信息包括用户接入信息和服务等级协议SLA信息；
    处理单元，用于根据所述第一消息确定关联于所述终端用户的目标用户面实体UP；
    发送单元，用于向所述CP发送第一请求消息，所述第一请求消息包括所述目标UP的标识。
  32. 根据权利要求31所述的USF，其特征在于，所述第一消息包括第一对象字段、第一操作字段，以及第一操作属性字段；
    所述第一请求消息包括第二对象字段、第二操作字段，以及第二操作属性字段。
  33. 根据权利要求32所述的USF，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括初始SLA信息；所述第一操作字段包括指示操作类型为用户上线的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第一迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  34. 根据权利要求32所述的USF，其特征在于，
    在所述第一消息中，所述第一对象字段包括所述用户接入信息和所述SLA信息，所述SLA信息包括更新SLA信息；所述第一操作字段包括指示操作类型为更新用户SLA的信息；
    在所述第一请求消息中，所述第二对象字段包括所述用户接入信息，所述第二操作字段包括指示操作类型为第二迁移请求的信息，所述第二操作属性字段包括所述目标UP的标识。
  35. 根据权利要求31至34任一项所述的USF，其特征在于，所述用户接入信息包括迁 移功能实体SF身份标识ID、媒体介入控制层MAC信息、QINQ信息、初始用户面实体UP ID。
  36. 根据权利要求35所述的USF，其特征在于，所述用户接入信息还包括以下至少一个：
    网段信息、组UP ID、访问接口ID。
  37. 根据权利要求31至34任一项所述的USF，其特征在于，所述BNG还包括软件定义网络SDN控制器，
    所述处理单元，还用于根据所述第一消息确定关联于所述终端用户的目标迁移功能实体SF的标识，以及所述终端用户的虚拟局域网VLAN标识；
    所述发送单元，还用于向所述SDN控制器发送第二请求消息，所述第二请求消息包括所述VLAN标识、所述目标SF的标识和所述目标UP的标识。
  38. 根据权利要求37所述的USF，其特征在于，所述第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
  39. 根据权利要求38所述的USF，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第三迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  40. 根据权利要求38所述的USF，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第四迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  41. 一种软件定义网络SDN控制器，其特征在于，所述SDN控制器包含于宽带网络网关BNG，所述BNG还包括控制面实体CP和用户面选择功能实体USF，所述SDN控制器包括：
    收发单元，用于接收来自所述USF的第二请求消息，所述第二请求消息包括虚拟局域网VLAN标识、目标SF的标识和目标用户面实体UP的标识；
    处理单元，用于根据所述第二请求消息在所述目标SF中处理所述虚拟局域网VLAN标识对应的终端用户和所述目标UP之间的连接。
  42. 根据权利要求41所述的SDN控制器，其特征在于，所述第二请求消息包括第三对象字段、第三操作字段，以及第三操作属性字段。
  43. 根据权利要求42所述的SDN控制器，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第三迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  44. 根据权利要求42所述的SDN控制器，其特征在于，
    在所述第二请求消息中，所述第三对象字段包括所述VLAN标识，所述第三操作字段包括指示操作类型为第四迁移请求的信息，所述第三操作属性字段包括所述目标SF的标识和所述目标UP的标识。
  45. 根据权利要求41至44任一项所述的SDN控制器，其特征在于，所述BNG还包括所 述目标SF，所述SDN控制器根据所述第二请求消息在所述目标SF中处理所述虚拟局域网VLAN标识对应的终端用户和所述目标UP之间的连接包括：
    所述SDN控制器向所述目标SF发送第三请求消息，所述第三请求消息包括所述VLAN标识和所述目标UP的标识。
  46. 根据权利要求45所述的SDN控制器，其特征在于，所述第三请求消息包括第四对象字段、第四操作字段，以及第四操作属性字段。
  47. 根据权利要求46所述的SDN控制器，其特征在于，
    在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第五迁移请求的信息，所述第四操作属性字段包括所述目标UP的标识。
  48. 根据权利要求46所述的SDN控制器，其特征在于，
    在所述第三请求消息中，所述第四对象字段包括所述VLAN标识，所述第四操作字段包括指示操作类型为第六迁移请求的信息，所述第四操作属性字段包括所述目标UP的标识。
  49. 一种控制面实体CP，其特征在于，包括：
    处理器以及存储器；
    所述存储器用于存储程序指令；
    所述处理器用于执行所述程序指令以使得所述通信装置实现权利要求1-6中任一项所述的方法。
  50. 一种用户面选择功能实体USF，其特征在于，包括：
    处理器以及存储器；
    所述存储器用于存储程序指令；
    所述处理器用于执行所述程序指令以使得所述通信装置实现权利要求7-16中任一项所述的方法。
  51. 一种软件定义网络SDN控制器，其特征在于，包括：
    处理器以及存储器；
    所述存储器用于存储程序指令；
    所述处理器用于执行所述程序指令以使得所述通信装置实现权利要求17-24中任一项所述的方法。
  52. 一种宽带网络网关BNG，其特征在于，包括如权利要求25至30任一项所述的控制面实体CP、如权利要求31至40任一项所述的用户面选择功能实体USF。
  53. 根据权利要求52所述的BNG，其特征在于，所述BNG还包括如权利要求41至48任一项所述的软件定义网络SDN控制器。
  54. 一种包含指令的计算机程序产品，其特征在于，在所述计算机程序产品在计算机上运行时，使得所述计算机执行如权利要求1至6中任一项所述的方法；或者，使得所述计算机执行如权利要求7至16中任一项所述的方法；或者使得所述计算机执行如权利要求17至24中任一项所述的方法。
  55. 一种计算机可读存储介质，所述计算机可读存储介质用于存储程序指令，其特征在于，在所述程序指令在计算机上运行时，使得所述计算机执行如权利要求1至6中任一项 所述的方法；或者，使得所述计算机执行如权利要求7至16中任一项所述的方法；或者使得所述计算机执行如权利要求17至24中任一项所述的方法。
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