WO2018076184A1 - Procédé et appareil de sélection de plan d'utilisateur et support de mémoire - Google Patents

Procédé et appareil de sélection de plan d'utilisateur et support de mémoire Download PDF

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Publication number
WO2018076184A1
WO2018076184A1 PCT/CN2016/103304 CN2016103304W WO2018076184A1 WO 2018076184 A1 WO2018076184 A1 WO 2018076184A1 CN 2016103304 W CN2016103304 W CN 2016103304W WO 2018076184 A1 WO2018076184 A1 WO 2018076184A1
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WIPO (PCT)
Prior art keywords
user plane
user
list
plane
target
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PCT/CN2016/103304
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English (en)
Chinese (zh)
Inventor
聂胜贤
于游洋
周润泽
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华为技术有限公司
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Priority to PCT/CN2016/103304 priority Critical patent/WO2018076184A1/fr
Publication of WO2018076184A1 publication Critical patent/WO2018076184A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a user plane selection method, apparatus, and storage medium.
  • CUPS Control and User Plane Separation
  • SGW Serving Gateway
  • PDN gateway Packet Data Network gateway
  • CP Control Plane
  • UP User Plane
  • the gateway control plane is divided and the gateway user plane is combined. That is, SGW-C and PGW-C belong to different devices, and SGW-U and PGW-U are integrated in the same device.
  • the gateway user plane can be combined to reduce the transmission node, avoid multiple routes, and avoid the congestion of intermediate nodes.
  • the SGW-C and the PGW-C respectively select the user planes of the respective gateways, that is, the SGW-C selects the SGW-U, and the PGW-C selects the PGW-U, which causes the user plane to transmit at least on the path.
  • the embodiment of the invention provides a user plane selection method, device and storage medium, which can preferentially select a user plane with a close or topological topology in a scenario where the control plane is divided and the user plane is combined, thereby reducing the data of the user plane. Transmission delay.
  • an embodiment of the present invention provides a user plane selection method, including: first, a first control plane receives a session management message sent by a second control plane.
  • the session management message carries a target second user plane list, and the target second user plane list includes an identity of the at least one second user plane selected by the second control plane.
  • the first control plane obtains the first user plane list to be selected, and the candidate first user plane list includes the identifier of the at least one first user plane. Thereafter, the first control plane selects a target first user plane that is close to a second user plane position in the target second user plane list from the candidate first user plane list.
  • the first control plane selects the target first user plane according to the target second user plane list and the candidate first user plane list, and the location of a second user plane in the target second user plane list is close, communication is performed.
  • the system can perform data interaction between the target first user plane and the second user plane when the session service is performed, thereby shortening the data transmission distance between the user planes, reducing the number of routing and forwarding, and reducing the data transmission delay.
  • the first control plane is one control plane in the next generation network control plane network element NG-CP
  • the second control plane is another control plane in the NG-CP.
  • the first control plane is a packet data network gateway control plane PGW-C
  • the second control plane is a serving gateway control plane SGW-C
  • the first control plane is a serving gateway control plane SGW- C
  • the second control plane is a packet data network gateway control plane PGW-C.
  • the first control plane selects, from the candidate first user plane list, a target first user plane that is close to a second user plane location in the target second user plane list, including: when the target In the second user plane list and the to-be-selected first user plane list, when the first user plane and the second user face each other, the first control plane selects a combined first user plane and the second user plane For the target first user face and the second user face, the target first user face and the first user face in the second user face are the target first user face.
  • the target first user plane and the second user face are facing the first user plane and the second user
  • the target first user plane and the first user plane and the second user facing the second user plane The face is located at the same physical location, so that the user face can be shortened when the target first user face and the target first user face and the target second user face in the second user face interact with each other.
  • the data transmission distance between the users reduces the number of user plane data forwarding nodes, reduces the number of route forwardings, avoids congestion control of intermediate nodes, and reduces data transmission delay.
  • the first control plane selects, from the candidate first user plane list, a target first user plane that is close to a second user plane location in the target second user plane list, including: when the target In the second user plane list and the candidate first user plane list, when there is no first user plane and the second user face, the first control plane selects a first user plane and a second user that are closest in topology Facing the target first user face and the second user face, the target first user face and the first user face in the second user face are the target first user face.
  • the first user plane and the second user that are closest in topology are selected.
  • the target first user plane and the second user face thereby determining the target first user plane, and may be performed by the target first user plane and the second user plane of the second user plane and the target second user plane
  • Data interaction can also shorten the data transmission distance between users, reduce the number of routing and forwarding, and reduce the data transmission delay.
  • the first control plane determines that the target second user plane list and the first user plane list to be selected in the candidate first user plane list and the second user face include: when the target second user When the second user plane and the first user plane of the same identity identifier exist in the face list and the candidate first user plane list, the first control plane determines that the target second user plane list and the candidate first user plane list are combined. The first user face and the second user face.
  • the first control plane can determine whether the first user plane and the second user plane are combined according to the identity of the first user plane and the second user plane.
  • the identity of the second user plane and the first user plane includes multiple fields; the first control plane selects a first user plane and a second user face that are closest to the topology, and is the target
  • the user plane and the second user face include: first, the first control plane compares the second user plane in the target second user plane list from the back to the front, and the first user plane in the candidate first user plane list Whether the corresponding fields of the identity match. Then, the first control plane determines that the first user plane corresponding to the two identity identifiers with the largest number of matching fields
  • the first control plane can determine the topological distance of the first user plane and the second user plane according to the identity of the first user plane and the second user plane.
  • the target second user plane list includes multiple second user plane identifiers
  • the method further includes: the first control plane selects the target first user plane and the second user plane
  • the second user plane is the target second user plane.
  • the first control plane sends the identity of the target second user plane to the second control plane.
  • the first control plane may select the target second user plane and select the target second user plane based on the selection target first user plane.
  • the user plane notifies the second control surface.
  • the identity of the first user plane and the identity of the second user plane are one of an IP address, a logical identifier, a full-name domain name FQDN, a media access control MAC address, and an application layer identifier.
  • IP address a logical identifier
  • FQDN a full-name domain name
  • media access control MAC address a media access control MAC address
  • application layer identifier a variety.
  • the embodiment of the present invention provides a user plane selection method, including: first, a second control plane acquires a target second user plane list, and the target second user plane list includes at least one second user selected by the second control plane. The identity of the face. Then, the second control sends a session management message to the first control plane, the session management message carries a target second user plane list, and the target second user plane list is used to select the target first user plane, or the target first user plane and the target Second user face.
  • the second control plane may be configured to select the target first user plane according to the target second user plane list, or the target first user plane and the target number Two user faces.
  • the first control plane is one control plane in the next generation network control plane network element NG-CP
  • the second control plane is another control plane in the NG-CP.
  • the first control plane is a packet data network gateway control plane PGW-C
  • the second control plane is a serving gateway control plane SGW-C
  • the first control plane is a serving gateway control plane SGW- C
  • the second control plane is the packet data network gateway control plane PGW-C.
  • the target second user plane list is a candidate second user plane list
  • the candidate second user plane list includes at least one second user plane identity identifier.
  • the obtaining, by the second control plane, the target second user plane list comprises: obtaining, by the second control plane, the second user plane list to be selected.
  • the obtained second user face list to be selected is the target second user face list.
  • the target second user plane list includes an identity of the second user plane
  • the target second user plane list includes a second user plane that is the target second user plane.
  • the obtaining, by the second control plane, the target second user plane list comprises: first, the second control plane acquires the second user plane list to be selected. Then, the second control plane selects a second user plane from the selected second user plane list according to the selection priority, and the selected second user plane identity identifies the target second user plane list; wherein, the first The selection priority of the second user plane that is set by the user plane is higher than the selection priority of the second user plane that is not combined with the first user plane.
  • the second control plane may preferentially select a second user plane that is combined with the first user plane as the target second user plane, and send the target second user plane list to the first control plane, thereby making the first control plane
  • the target first user face may be selected according to the target second user face in the target second user face list.
  • the acquiring, by the second control plane, the second user plane list includes: performing, by the second control plane, domain name resolution according to the domain name parameter, to obtain the first second user plane list, and the first second user The load status and processing capability of the second user plane in the face list, the first second user plane list including the identity of the at least one second user plane.
  • the second control plane obtains the second user plane list to be selected according to the first second user plane list and the load status and processing capability of the second user plane in the first second user plane list.
  • the second control plane can obtain the second user plane list to be selected according to the first second user plane list and the load status and processing capability of the second user plane in the first second user plane list.
  • the second control plane saves the second second user plane a table, and a load condition and processing capability of the second user plane in the second second user plane list, the second second user plane list including an identity of the at least one second user plane.
  • Obtaining, by the second control plane, the second user plane list includes: a second control plane according to the second second user plane list, a second user plane list, a second user plane load status, a processing capability, and a domain name parameter, Get a list of second user faces to be selected.
  • the second control plane may obtain the second user plane list to be selected according to the second second user plane list, the load status of the second user plane in the second second user plane list, and the processing capability and the domain name parameter.
  • the second control plane saves the second second user plane list, and the second user plane load condition and processing capability in the second second user plane list, and the second second user plane
  • the list includes an identification of at least one second user plane.
  • Obtaining, by the second control plane, the second user plane list to be selected includes: the second control plane performs domain name resolution according to the domain name parameter, to obtain the first second user plane list, and the second user plane in the first second user plane list a load status and processing capability, the first second user plane list includes an identity of the at least one second user plane; the second control plane is configured according to the second second user plane list, the first second user plane list, and the second second The load status and processing capability of the second user plane in the user plane list and the load status and processing capability of the second user plane in the first second user plane list are obtained as a second user plane list to be selected.
  • the second control plane can be based on the second second user plane list, the first second user plane list, and the second user plane load condition and processing capability in the second second user plane list and the first second user.
  • the load status and processing capability of the second user plane in the face list obtains a list of second user faces to be selected.
  • the method further includes: acquiring, by the second control plane, a domain name parameter.
  • the domain name parameter is location information of the user equipment;
  • the domain name parameter includes the packet data network.
  • the second control plane is different, and the domain name parameters corresponding to the second control plane are also different.
  • an embodiment of the present invention provides a first selecting apparatus, including: a receiving unit, configured to receive a session management message sent by a second control plane.
  • the session management message carries a target second user plane list, and the target second user plane list includes an identity of the at least one second user plane selected by the second control plane.
  • an obtaining unit configured to obtain a first user plane list to be selected, where the to-be-selected first user plane list includes an identifier of the at least one first user plane.
  • a selecting unit configured to select, from the candidate first user face list, a target first user face that is close to a second user face position in the target second user face list.
  • the first selection device is one control plane in the next generation network control plane network element NG-CP
  • the second control plane is another control plane in the NG-CP.
  • the first selecting device is a packet data network gateway control plane PGW-C
  • the second control plane is a serving gateway control plane SGW-C
  • the first selecting device is a serving gateway control plane SGW- C
  • the second control plane is a packet data network gateway control plane PGW-C.
  • the selecting unit is specifically configured to: when there is a first user plane and a second user face in the target second user plane list and the to-be-selected first user plane list, the first The control plane selects a combined first user plane and the second user face to target the first user plane and the second user face, and the target first user plane and the first user plane of the second user face are the target A user face.
  • the selecting unit is specifically configured to: when there is no first user plane and a second user face in the target second user plane list and the to-be-selected first user plane list, select The first user plane and the second user face that are closest to the topological face are facing the target first user face and the second user face, and the first user face of the target first user face and the second user face is the target first user surface.
  • the selecting unit is specifically configured to: when the second user plane and the first user plane of the same identity identifier exist in the target second user plane list and the to-be-selected first user plane list, determine the target number The first user plane and the second user face are present in the two user plane list and the candidate first user plane list.
  • the selecting unit is specifically configured to: compare the target from the back to the front Whether the second user plane in the second user plane list matches the corresponding field of the identity of the first user plane in the first user plane list to be selected.
  • the first user plane and the second user face corresponding to the two identity identifiers with the largest number of matching fields are determined, that is, the target first user plane and the second user face that are the closest to the topological distance.
  • the target second user plane list includes the identifiers of the plurality of second user planes; the selecting unit is further configured to: select the target first user plane and the second user plane of the second user plane Target the second user face.
  • the device further includes: a sending unit, configured to send the identity of the target second user plane to the second control plane.
  • the embodiment of the present invention provides a second selecting device, including: an acquiring unit, configured to acquire a target second user plane list, where the target second user plane list includes at least one second user plane selected by the second selecting device. Identity. And a sending unit, configured to send a session management message to the first control plane.
  • the session management message carries a target second user plane list, and the target second user plane list is used to select a target first user plane, or a target first user plane and a target second user plane.
  • the first control plane is one of the next generation network control plane network elements NG-CP
  • the second selection device is another control plane of the NG-CP.
  • the second selecting device is the serving gateway control plane SGW-C
  • the first control plane is the packet data network gateway control plane PGW-C
  • the second selecting device is the packet data network gateway control plane.
  • PGW-C the first control plane is the serving gateway control plane SGW-C.
  • the target second user plane list is a second user plane list to be selected, and the second user plane list to be selected includes at least one second user plane identity identifier; the obtaining unit is specifically configured to: acquire Select the second user face list.
  • the target second user plane list includes an identity of the second user plane, and the target second user plane list includes a second user plane that is the target second user plane;
  • the obtaining unit is specifically configured to: : Get the list of second user faces to be selected. Selecting a second user plane from the selected second user plane list according to the selection priority, and selecting the second user plane identifier to form the target second user plane list; wherein, the first user plane The selection priority of the second user plane that is set is higher than the selection priority of the second user plane that is not combined with the first user plane.
  • the obtaining unit is specifically configured to: perform domain name resolution according to the domain name parameter, to obtain a first second user plane list, and a load status of the second user plane in the first second user plane list.
  • the first second user plane list includes an identity of the at least one second user plane.
  • obtaining a second user plane list to be selected according to the first second user plane list and the load status and processing capability of the second user plane in the first second user plane list.
  • the second selecting device saves the second second user plane list, and the second user plane load condition and processing capability in the second second user plane list, and the second second user plane
  • the list includes an identification of at least one second user plane.
  • the acquiring unit is specifically configured to: obtain a candidate to be selected according to the second second user plane list, the load status, the processing capability, and the domain name parameter of the second user plane in the second second user plane list.
  • the second user face list is specifically configured to: obtain a candidate to be selected according to the second second user plane list, the load status, the processing capability, and the domain name parameter of the second user plane in the second second user plane list. The second user face list.
  • the obtaining unit is specifically configured to: perform domain name resolution according to the domain name parameter, to obtain a first second user plane list, and a load status of the second user plane in the first second user plane list.
  • Processing capability, the first second user plane list includes an identity of the at least one second user plane.
  • the second second user plane list, the first second user plane list, and the second user plane load condition and processing capability in the second second user plane list and the second user in the first second user plane list The load status and processing capability of the surface are obtained from the list of second user faces to be selected.
  • the obtaining unit is further configured to: acquire a domain name parameter.
  • the domain name parameter is location information of the user equipment; when the second selection device is the packet data network gateway control plane PGW-C, the domain name parameter includes the packet data network.
  • the domain name parameter includes the packet data network.
  • an embodiment of the present invention provides a first selection device, including a processor and a transceiver, the processor configured to support the first selection device to perform the first aspect and Corresponding functions in any of the possible implementations of the first aspect.
  • the transceiver is configured to support communication between the first selection device and other network elements.
  • the first selection device can also include a memory for coupling with the processor to save program instructions and data necessary for the first selection device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by a first selection device, which includes any of the possible implementations for performing the first aspect and the first aspect.
  • an embodiment of the present invention provides a second selecting apparatus, including a processor and a transceiver, the processor configured to support the second selecting apparatus to perform any of the foregoing second aspect and the second aspect.
  • the transceiver is configured to support communication between the second selection device and other network elements.
  • the second selection device can also include a memory for coupling with the processor to save program instructions and data necessary for the second selection device.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in a second selection device, which includes any of the possible implementations for performing the second aspect and the second aspect.
  • an embodiment of the present invention provides a communication system, including the first selection device, the second selection device, the second user plane, and the first user plane.
  • User plane control plane separation User plane and control plane functions are performed by different functional entities respectively, which allows the control plane and user plane to use different hardware or software resources respectively, and deploy to different locations according to requirements to achieve higher flexibility. .
  • the first user plane and the second user face: a second user plane and a first user plane and a first user plane and a first user plane.
  • Domain name resolution refers to a service that allows a domain name to be directed to a website space IP so that it can be easily accessed through a registered domain name.
  • EPC Evolved Packet Core
  • MME Mobility Management Entity
  • Packet data network gateway The border gateway of the EPC network, also known as the packet data network gateway or the public data gateway, is an anchor point for accessing the public data network PDN, and can provide user session management and bearer control for data forwarding and network protocols. (Internet Protocol, IP) address assignment, etc.
  • IP Internet Protocol
  • FIG. 1 is a schematic structural diagram of a device control plane combination and a user plane division according to an embodiment of the present invention
  • FIG. 1b is a schematic diagram of a partial network architecture of a next generation communication system according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a user plane selection method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of another user plane selection method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for acquiring a second user plane list according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a first selection device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a second selecting apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a device according to an embodiment of the present invention.
  • control plane and the user plane deployment scenario in the CUPS architecture are scenarios in which the control plane is combined and the user plane is divided.
  • deployment scenario there may be cases where the control plane is divided, the user plane is divided, and the control plane is combined and the user plane is combined.
  • Each control plane and each user plane may be an independent hardware device, or may be a device module or a functional entity integrated in a certain hardware device, or may be a functional module after virtualization.
  • the control plane and the user plane in the CUPS architecture involved in the embodiments of the present invention may be a control plane and a user plane of a gateway device, an access network device, or other functional devices.
  • a schematic diagram of a control plane of different devices and a user plane is shown in FIG. 1a.
  • the first device control plane and the second device control plane are separated, and the first device control plane and the second device control plane are located at different physical locations; the first device user plane and the second device user plane are combined, A device user plane and a second device user plane are located at the same physical location.
  • information interaction can be performed through the interface Sx.
  • the control plane and the user plane in the CUPS architecture may also be the NextGen Control Plane (NG-CP) in the next generation (5G) communication system shown in FIG. 1b.
  • the communication system shown in FIG. 1b may further include user data UData, User Equipment (UE), NextGen (Radio) Access Network, NG-(R)AN, and PDN network.
  • the NG-CP has a CP function, and the CP functions can include functions of multiple control planes, such as functions for session management execution, functions for policy control, etc.
  • the function of the facet may specifically include the function of the first device control plane and the function of the second device control plane shown in FIG.
  • the NG-UP has a user face function set UP functions, and the UP functions may include multiple user faces.
  • the function may specifically include the function of the first device user plane and the function of the second device user plane as shown in FIG. 1a.
  • the functions of the multiple control planes included in the CP functions may be deployed in different physical devices, or may be deployed in the same physical device, and the functions of multiple user planes included in the UP functions may be deployed in different physical devices. Can be deployed on the same physical device.
  • the prior art independently selects the user plane through the first control plane (for example, SGW-C) and the second control plane (for example, PGW-C), thereby easily causing selection.
  • the location between the first user plane and the second user plane is relatively long, and the data needs to be forwarded multiple times, so that the data transmission delay of the user plane is long.
  • the following embodiments of the present invention can preferentially select a user plane that is close to or close to the topology by adding user plane information interaction between the first control plane and the second control plane, thereby reducing the number of routing and forwarding of data between users and reducing the user plane. Data transmission delay. The details will be described below by way of specific examples.
  • An embodiment of the present invention provides a user plane selection method. Referring to FIG. 2, the method may include:
  • the second control plane obtains a target second user plane list, where the target second user plane list includes an identity identifier of the at least one second user plane selected by the second control plane.
  • the second control plane may be a control plane of a device in the scenario shown in FIG. 1a, such as SGW-C or PGW-C; or may be a control plane in the NG-CP in the scenario shown in FIG. 1b.
  • the identity of the second user plane can be used to uniquely identify a second user plane.
  • the identity identifier herein may be one or more of an IP address, a logical identifier, a Fully Qualified Domain Name (FQDN), a Media Access Control (MAC) address, and an application layer identifier.
  • the target second user plane list includes an identity of the at least one second user plane selected by the second control plane, that is, the target second user plane list includes at least one second user plane.
  • the second control sends a session management message to the first control plane, where the session management message carries a target second user plane list, and the target second user plane list is used to select the target first User face, or target first user face and target second user face.
  • the first control plane is different from the second control plane.
  • the first control plane may be a control plane of a device in the scenario shown in FIG. 1a, or may be a control plane in the scenario shown in FIG. 1b.
  • the first control plane may be PGW-C; when the second control plane is PGW-C, the first control plane may be SGW-C.
  • the session management message here is used to manage the session.
  • the session management message may be a session creation request message.
  • the session management message may specifically be an IP connectivity access. Web session modification message.
  • the second control plane may carry the target second user plane list in the session management message, and send the information to the first control plane, so that the first control plane can be based on the target second user.
  • the face list selects the target first user face, or the target first user face and the target second user face.
  • the first control plane After receiving the session management message sent by the second control plane, the first control plane obtains the first user plane list to be selected, and the candidate first user plane list includes the identifier of the at least one first user plane.
  • the identity of the first user plane may be used to uniquely identify a first user plane.
  • the identity identifier herein may specifically be one or more of an IP address, a logical identifier, a full-name domain name FQDN, a MAC address, and an application layer identifier.
  • the candidate first user plane list includes an identity of the at least one first user plane, that is, the candidate first user plane list includes at least one first user plane.
  • the first control plane selects, from the candidate first user plane list, a target first user plane that is close to a second user plane location in the target second user plane list.
  • the first control plane may select, from the candidate first user plane list, a location close to a second user plane in the target second user plane list. The goal of the first user face.
  • the first control plane may manage the selected target first user plane to support the session service, and may also notify the other device of the target first user plane information; the second control plane may manage the target first user.
  • the second user face with a close face position to support the session service, The information of the second user plane can also be notified to other devices.
  • the communication system can pass the target first user plane and the second position when the session service is performed.
  • the user side performs data interaction, thereby shortening the data transmission distance between the user planes, reducing the number of routing and forwarding, and reducing the data transmission delay.
  • the second control plane sends the target second user plane list to the first control plane, and the target second user plane list includes at least one second user selected by the second control plane.
  • the identifier of the face so that the first control plane can select a target first user plane that is close to a second user plane position in the target second user plane list from the obtained first user plane list to be selected, and thus can be
  • the session service is performed, data interaction is performed by the first user plane and the second user plane that are close to each other, thereby shortening the data transmission distance between the user planes, reducing the number of routing and forwarding, and reducing the data transmission delay.
  • the second control plane may perform a user plane selection method after the triggering, where the trigger may be an external trigger performed by the external device on the second control plane, or may be local to the second control plane itself.
  • Policy triggering Exemplarily, when the second control plane is the SGW-C and the triggering mode is the external trigger, the SGW-C may receive the session management message sent by the MME before the step 101, where the session management message may be a session request message, and The session management message is used as an external trigger indication message, thereby triggering execution of the user plane selection method.
  • the MME is a control plane entity, and is mainly responsible for functions such as mobility management, bearer management, user authentication, SGW, and PGW selection.
  • the PGW-C can receive the session sent by the Policy and Charging Rules Function (PCRF).
  • the management message may be an IP connectivity access network session modification message.
  • the PCRF can control the quality of service (QoS) of users and services, provide differentiated services for users, and provide service flow bearer resource guarantee and flow charging policies.
  • QoS quality of service
  • the PGW-C may initiate a dedicated bearer activation procedure according to whether the QoS requirement of the received downlink data packet is not Before the host can be satisfied, is the current user plane can support. When the current user plane does not support downlink data packet forwarding, the PGW-C triggers the selection of a new user plane.
  • the first possible implementation manner is that the target second user plane list is the to-be-selected first user plane list, and the to-be-selected second user plane list includes the identity identifier of the at least one second user plane.
  • the obtaining, by the second control plane, the target second user plane list in step 101 includes:
  • the second control plane obtains a list of the second user plane to be selected.
  • step 101a There may be multiple ways for the second control plane to obtain the second user plane list to be selected in step 101a. The following description will be made by three cases.
  • the obtaining, by the second control plane, the second user plane list to be selected in step 101a may include:
  • the second control plane performs domain name resolution according to the domain name parameter, to obtain the first second user plane list, and the load status and processing capability of the second user plane in the first second user plane list, and the first second user plane.
  • the list includes an identification of at least one second user plane.
  • the domain name parameter may be used to perform domain name resolution to obtain a first second user plane list and a load status and processing capability of the second user plane in the first second user plane list.
  • the second user plane in the first second user plane list obtained by the second control plane according to the domain name parameter is a second user plane capable of supporting the user equipment service. And, in this case, the second control plane can also control or manage the second user plane in the first second user plane list.
  • the second control plane obtains a second user plane list to be selected according to the first second user plane list and the load status and processing capability of the second user plane in the first second user plane list.
  • the second control plane may use the identity of the second user plane in the first second user plane list, whose load status and/or processing capability meets the preset condition, as the second user plane list to be selected. Element to get a list of second user faces to be selected.
  • the second control plane stores a second second user plane list, and a second user plane list load condition and processing capability in the second second user plane list, and the second second user plane list includes At least one identity of the second user plane.
  • the second user plane in the second second user plane list is a second user plane configurable or manageable by the second control plane.
  • the obtaining, by the second control plane, the second user plane list to be selected in step 101a may include:
  • the second control plane obtains a second user plane list to be selected according to the second second user plane list, the load status, the processing capability, and the domain name parameter of the second user plane in the second second user plane list.
  • the second control plane may select a second user plane whose service range and capability match the domain name parameter of the user equipment from the second user plane list according to the domain name parameter, thereby generating a second user plane list to be selected.
  • the second control plane also stores the second second user plane list, and the second user plane load condition and processing capability in the second second user plane list, and the second second user plane list.
  • the identity of at least one second user plane is included.
  • the obtaining, by the second control plane, the second user plane list to be selected in step 101a may include:
  • the second control plane performs domain name resolution according to the domain name parameter, to obtain a first second user plane list, and a load status and processing capability of the second user plane in the first second user plane list, and the first second user plane.
  • the list includes an identification of at least one second user plane.
  • step 401 For details of the implementation process of the step 401, refer to the description in the foregoing step 201, and details are not described herein again.
  • the second control plane is configured according to the second second user plane list, the first second user plane list, and the second user plane load condition and processing capability and the first second user plane in the second second user plane list.
  • the load status and processing capability of the second user plane in the list is obtained by the second user plane list to be selected.
  • the second user plane in the first second user plane list is a second user plane capable of supporting the service of the user equipment participating in the session, and the second user plane in the second second user plane list is the second control plane.
  • the second user plane configured or managed, the second user plane in the second user plane list to be selected is a second user plane that can be configured or managed by the second control plane, and can support the participation in the session.
  • the method may further include: acquiring, by the second control plane, a domain name parameter.
  • the second control plane is different, and the domain name parameters corresponding to the second control plane are also different.
  • the domain name parameter may be location information of the user equipment.
  • the location information of the user equipment may include a Tracking Area Identity (TAI), a Routing Area Identity (RAI), a Location Area Identity (LAI), a zip code, and a global address. Positioning System (GPS) coordinates, etc.
  • TAI Tracking Area Identity
  • RAI Routing Area Identity
  • LAI Location Area Identity
  • zip code a zip code
  • GPS Positioning System
  • the trigger mode is external trigger
  • the SGW-C receives the session management request message sent by the MME as a trigger message before step 101
  • the session management request message sent by the MME The location information of the user equipment may be carried, so that the SGW-C can obtain the location information of the user equipment.
  • the domain name parameter may include one or more of a name of the packet data network, a name of the access point, and a service identifier.
  • the name of the access point is used as an example.
  • the information about the name of the access point and the related information of the user equipment can be stored in the Home Subscriber Server (HSS) in the network.
  • HSS can send the corresponding information to the HSS.
  • the MME may send the name of the access point corresponding to the user equipment participating in the session to the PGW-C through the SGW-C.
  • the process of obtaining the first user plane list to be selected by the first control plane is similar to the process of obtaining the second user plane list to be selected by the second control plane.
  • the domain name parameter may be location information of the user equipment.
  • the domain name parameter may include one or more of the name of the packet data network, the name of the access point, and the service identifier.
  • the first control plane selects, from the candidate first user plane list, the target first user plane that is close to a second user plane location in the target second user plane list, which may specifically include :
  • the first control plane selects a combined first user plane and the first control plane.
  • the second user faces the target first user face and the second user face, and the target first user face and the first user face in the second user face are the target first user face.
  • the first user plane and the second user plane are the pair of the first user plane and the second user plane.
  • the first user plane and the second user plane are located at the same physical location, and the same device has the same identity.
  • the second user plane is a second user plane in the target second user plane list, wherein the first user plane is a first user plane in the to-be-selected first user plane list.
  • the target second user plane list and the to-be-selected first user plane list there may be one or more associated first user planes and second user faces.
  • the first control plane may select one of the combined first users.
  • the face and the second user face as the target first user face and the second user face.
  • the first user plane of the target first user plane and the second user plane is the target first user plane.
  • a first user plane and a second user face are selected from a plurality of the combined first user plane and the second user plane as the target first user plane.
  • the specific method faced by the second user is not limited.
  • the first control plane may randomly select one of the combined first user plane and the second user face from the plurality of the combined first user plane and the second user plane as the target first user plane. Faced with the second user.
  • the first control plane may face the first determined first user plane and the second user as the target first user plane and the second user.
  • the communication system may perform data interaction by the target first user plane and the first user plane and the second user plane of the second user plane.
  • the target first user plane and the second user face face each other for the first user plane and the second user
  • the target first user plane and the second user face
  • the first user plane and the second user plane are located at the same physical location, so when data interaction is performed between the target first user plane and the first user plane and the target second user plane of the second user plane, the user plane can be shortened
  • the data transmission distance reduces the number of user plane data forwarding nodes, reduces the number of route forwardings, avoids congestion control of intermediate nodes, and reduces data transmission delay.
  • the first control plane selects a first user plane with the closest topology distance. And facing the second user face for the target first user face and the second user, the target first user face and the first user face of the second user face are the target first user face.
  • the first control plane may be the closest group of the first user plane.
  • a second user plane that is, a first user plane closest to the topological distance and the second user face, as the target first user plane and the second user face, the target first user plane and the second user face A user plane is the target first user plane. Therefore, after the first control plane determines that the target first user plane and the second user face, the communication system may perform data through the target first user plane and the first user plane and the second user plane of the second user plane. Interaction.
  • the target second user plane list and the to-be-selected first user plane list may have multiple first user planes and second user faces with the closest topological distance, and the first control plane may select one of the first user planes and The second user faces, facing the first user face and the second user.
  • the first user plane that is closest to the topological distance is selected.
  • a second user plane as a target first user plane and a second user plane, thereby determining a target first user plane, and may pass through the target first user plane and the second user face
  • the data interaction between a user plane and the target second user plane can also shorten the data transmission distance between the user planes, reduce the number of routing and forwarding, and reduce the data transmission delay.
  • the first control plane determines that the first user plane and the second user plane in the target second user plane list and the to-be-selected first user plane list include:
  • the first control plane determines the target second user plane list and the to-be-selected first There is a combined first user face and a second user face in the user face list.
  • the identity of the first user plane and the second user plane may include multiple fields.
  • the first control plane selects the first user plane and the second user face that are the closest to the topology, and the second user face and the second user face include:
  • the first control plane compares the second user plane in the target second user plane list from the back to the front, and whether the corresponding field of the identity of the first user plane in the first user plane list to be selected matches.
  • the first user plane and the second user face corresponding to the two identity identifiers with the largest number of matching fields in the first control plane determining field, that is, the target first user plane and the second user facing the topological distance.
  • the specific content of the target second user plane list can be seen in Table 1 below.
  • Table 2 For details of selecting the first user plane list, refer to Table 2 below.
  • the identity may include a plurality of fields, where different fields are separated by "/", and each field may include a plurality of characters.
  • the first field may be the name of the user plane, and the content in the first field may also indicate whether the user plane is combined with other users.
  • SAEGW when SAEGW is included in the first field, it can be indicated that the user plane is combined with other user planes.
  • Each field after the first field can correspond to a different range of regions, and the range of regions corresponding to the fields is getting smaller and smaller in order from back to front.
  • the SGW-U1 in the target second user plane list and the PGW-U1 in the candidate first user plane list are the combined SGW-U and PGW-U pairs.
  • PGW-U1 and PGW-U3, and SGW-U1 and PGW-U2 are SGW-U and PGW-U pairs with the closest topological distance.
  • the PGW-U2 is a PGW-U that is combined with other SGW-Us, for example, with the SGW-U3, the PGW-C can preferentially select the SGW-U1 and PGW with the closest topology in the selection process.
  • the method may further include:
  • the first control plane selects the target first user plane and the second user plane of the second user plane as the target second user plane.
  • the first control plane sends the identity of the target second user plane to the second control plane.
  • the first control plane determines, by steps 501 and 502, the target first user plane and the second user face, and determines the target first user plane and After the first user face of the second user faces the target first user face, the target first user face and the second user face of the second user face may be selected as the target second user face, and the target is The identity of the second user plane is sent to the second control plane, so that the second control plane can manage the target second user plane to support the session service, and can also notify the other device of the information of the target second user plane.
  • the communication system can perform data interaction through the target first user plane and the target second user plane.
  • the second control plane may send the target second user plane list to the first control plane, so that the first control plane may be according to the target second user plane list.
  • the first user plane list to be selected the first user plane and the second user face are preferentially selected, as the target first user plane and the second user face; when there is no first user plane and the first user
  • the first user face and the second user face with the closest topology are preferentially selected as the target second user face and the target first user face; thereby, the target first user face and the second user face can be determined.
  • the first user plane is the target first user plane, and further determining that the target first user plane and the second user plane of the second user plane are the target second user plane, thereby shortening the target first user plane and
  • the data transmission distance between the target second user plane reduces the number of route forwarding and reduces the data transmission delay.
  • the second possible implementation manner is that the target second user plane list includes an identity of the second user plane, and the target second user plane list includes a second user plane that is the target second user plane.
  • the second control surface is in step 101a. Obtaining the target second user face list includes:
  • the second control plane obtains a list of the second user plane to be selected.
  • the second control plane selects a second user plane from the selected second user plane list according to the selection priority, and the selected second user plane identifier forms a target second user plane list; wherein, the first The selection priority of the second user plane that is set by the user plane is higher than the selection priority of the second user plane that is not combined with the first user plane.
  • the second control plane may preferentially select a second user plane that is combined with the first user plane as the target second user plane from the candidate second user plane list, thereby When the session service is performed, data interaction can be performed through the target second user plane.
  • the second control plane when the second user plane is to be selected, the second control plane is provided with a second user plane that is combined with the first user plane.
  • a specific method of selecting a second user plane as the target second user plane is not limited.
  • the second control plane may randomly select a second user plane that is combined with the first user plane from the candidate second user plane list as the target second user plane.
  • the second control plane may also select a second user plane that is the first one of the second user plane list to be combined with the first user plane as the target second user plane.
  • the second control plane may select a second user plane that is not combined with the first user plane, as a target. Second user face.
  • the target second user plane list includes an identity of the second user plane
  • the second user plane is the target second user plane
  • the second control plane has determined the target second user plane
  • the first The control plane no longer determines the target second user plane, and no longer sends the identity of the target second user plane to the second control plane, but determines the target first user plane according to the target second user plane.
  • the first control plane may determine, according to the target second user plane, the target first user plane and the second user plane, and the target first user plane and the first user plane of the second user plane are the target first user. surface.
  • the first control plane determines the process of the target first user plane and the second user facing the target second user plane, and the foregoing
  • the processes described in steps 501 and 502 are similar, in particular, in that the target second user plane list includes only one second user plane, that is, the target second user plane.
  • the second control plane preferentially selects the second user plane that is combined with the first user plane as the target second user plane, and sends the first user plane to the first control.
  • the first control plane can preferentially select the first user plane that is combined with the target second user plane as the target first user plane according to the target second user plane and the candidate first user plane list; when there is no target
  • the first control plane preferentially selects the first user plane closest to the target second user plane topological distance as the target first user plane, thereby shortening the target first user plane and the target
  • the data transmission distance between the second user planes reduces the number of route forwardings and reduces the data transmission delay.
  • the first selection device 800 can include a receiving unit 801, an obtaining unit 802, a selecting unit 803, and a sending unit 804.
  • the receiving unit 801 is configured to receive a session management message sent by the second control plane, where the session management message carries a target second user plane list, and the target second user plane list includes at least one second user selected by the second control plane.
  • the obtaining unit 802 may be configured to obtain a first user plane list to be selected, where the first user plane list to be selected includes at least one identity of the first user plane, and the selecting unit 803 may be used to select the first user plane.
  • a target first user face that is close to a second user face position in the target second user face list is selected.
  • the selecting unit 803 can also be used to perform steps 501, 502, and 503 in FIG. 3, and the sending unit 804 can be used to perform step 504 in FIG.
  • the embodiment of the invention further provides a computer storage medium for storing the computer software instructions used by the first selection device shown in FIG. 5, which comprises a program designed to execute the above method embodiment.
  • User plane selection can be achieved by executing a stored program.
  • the second selection device 900 can include an obtaining unit 901 and a sending unit 902.
  • the acquisition unit The 901 may be configured to obtain a target second user plane list, where the target second user plane list includes an identifier of the at least one second user plane selected by the second selecting device, and the sending unit 902 may be configured to send the session to the first control plane.
  • the management message, the session management message carries a target second user plane list, and the target second user plane list is used to select the target first user plane, or the target first user plane and the target second user plane.
  • the obtaining unit 901 can also be used to perform steps 701 and 702 in FIG.
  • the embodiment of the invention further provides a computer storage medium for storing the computer software instructions used by the second selection device shown in FIG. 6 above, which comprises a program designed to execute the above method embodiment.
  • User plane selection can be achieved by executing a stored program.
  • first selection device or the second selection device in FIG. 5 or 6 is presented in the form of a functional unit.
  • a "cell” herein may refer to an Application Specific Integrated Circuit (ASIC) circuit, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above.
  • ASIC Application Specific Integrated Circuit
  • processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other devices that provide the functionality described above.
  • the first or second selection device of FIG. 5 or 6 can take the form shown in FIG. Each unit can be implemented by the processor and memory of FIG.
  • an embodiment of the present invention further provides an apparatus 1000.
  • the apparatus 1000 includes at least one processor 1001, a memory 1002, and a communication interface 1003. At least one processor 1001, a memory 1002, and a communication interface 1003 are all connected by a bus 1004. 1002, for storing computer execution instructions; at least one processor 1001, configured to execute computer execution instructions stored in the memory 1002, so that the device 1000 performs data interaction with other devices through the communication interface 1003 to perform user plane selection provided by the foregoing embodiments. method.
  • the first selecting device provided by the embodiment of the present invention is the device 1000.
  • the first selecting device 1000 performs data interaction with the second control plane through the communication interface 1003, and at least one processor 1001 executes the memory 1002 for storage.
  • the computer executes the instructions to: receive a session management message sent by the second control plane, the session management message carries a target second user plane list, and the target second user plane list includes at least one second user selected by the second control plane
  • the identity of the face obtain the first user face list to be selected, the first choice to be selected
  • the household list includes an identity of the at least one first user plane; and from the candidate first user face list, a target first user face that is close to a second user face location in the target second user face list is selected.
  • the second selecting device provided by the embodiment of the present invention is the device 1000, and the second selecting device 1000 performs data interaction with the first control plane through the communication interface 1003, and the at least one processor 1001 performs the storage of the memory 1002.
  • the computer executes instructions to: obtain a target second user plane list, the target second user plane list includes an identity of the at least one second user plane selected by the second control plane; and send a session management message to the first control plane,
  • the session management message carries a target second user plane list, and the target second user plane list is used to select the target first user plane, or the target first user plane and the target second user plane.
  • At least one processor 1001 may include a different type of processor 1001, or include the same type of processor 1001; the processor 1001 may be any one of the following: a central processing unit (CPU), ARM processor, Field Programmable Gate Array (FPGA), dedicated processor and other devices with computational processing capabilities. In an alternative embodiment, at least one processor 1001 may also be integrated as a many-core processor.
  • processor 1001 may be any one of the following: a central processing unit (CPU), ARM processor, Field Programmable Gate Array (FPGA), dedicated processor and other devices with computational processing capabilities.
  • at least one processor 1001 may also be integrated as a many-core processor.
  • the memory 1002 may be any one or any combination of the following: a random access memory (RAM), a read only memory (ROM), and a nonvolatile memory (Non).
  • RAM random access memory
  • ROM read only memory
  • Non nonvolatile memory
  • SSD solid state drives
  • mechanical hard disks disks, disk arrays and other storage media.
  • the communication interface 1003 is used by the device 1000 to perform data interaction with other devices.
  • the communication interface 1003 may be any one or any combination of the following: a network interface (such as an Ethernet interface), a wireless network card, and the like having a network access function.
  • the bus 1004 can include an address bus, a data bus, a control bus, etc., for convenience of representation, Figure 7 shows the bus with a thick line.
  • the bus 1004 may be any one or any combination of the following: an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extension.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • Another embodiment of the present invention provides a communication system, which may include a first selection device, a second selection device, a first user plane, and a second user plane.
  • the first selection means, the second selection means, the first user plane and the second user plane in the communication system may perform the user plane selection method in the above method embodiment.
  • the first selecting device may be specifically configured to implement the function of the first control plane to perform the user plane selection method
  • the second selecting device may be specifically configured to implement the second control plane. The function to perform the above user face selection method.

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Abstract

La présente invention se rapporte, dans des modes de réalisation, au domaine technique des communications. L'invention porte sur un procédé et sur un appareil de sélection de plan d'utilisateur, ainsi que sur un support de mémoire, qui permettent de sélectionner de préférence des plans d'utilisateur qui sont agencés de manière combinée ou qui présentent des topologies similaires dans un scénario dans lequel des plans de commande sont agencés séparément et des plans d'utilisateur sont agencés de manière combinée, ce qui permet de réduire le retard de transmission de données des plans de données. La solution particulière comprend les étapes suivantes : un premier plan de commande reçoit un message de gestion de session envoyé par un second plan d'utilisateur, le message de gestion de session acheminant une liste de seconds plans d'utilisateur cibles, celle-ci comprenant un identifiant d'identité d'au moins un second plan d'utilisateur sélectionné par le second plan de commande ; le premier plan de commande obtient une liste de premiers plans d'utilisateur à sélectionner, celle-ci comprenant un identifiant d'identité d'au moins un premier plan d'utilisateur ; à partir de la liste des premiers plans d'utilisateur à sélectionner, le premier plan de commande sélectionne un premier plan d'utilisateur cible dont la position est proche de la position d'un second plan d'utilisateur dans la liste des seconds plans d'utilisateur cibles. Les modes de réalisation de la présente invention sont utilisés pour sélectionner un plan d'utilisateur.
PCT/CN2016/103304 2016-10-25 2016-10-25 Procédé et appareil de sélection de plan d'utilisateur et support de mémoire WO2018076184A1 (fr)

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