WO2021047448A1 - 会话管理方法及设备 - Google Patents

会话管理方法及设备 Download PDF

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Publication number
WO2021047448A1
WO2021047448A1 PCT/CN2020/113399 CN2020113399W WO2021047448A1 WO 2021047448 A1 WO2021047448 A1 WO 2021047448A1 CN 2020113399 W CN2020113399 W CN 2020113399W WO 2021047448 A1 WO2021047448 A1 WO 2021047448A1
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upf
configuration information
destination
data packet
port number
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PCT/CN2020/113399
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English (en)
French (fr)
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王丹
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2021047448A1 publication Critical patent/WO2021047448A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40Support for services or applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/14Session management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/24Traffic characterised by specific attributes, e.g. priority or QoS

Definitions

  • the present disclosure relates to the field of communication technology, in particular to a session management method and device.
  • the network determines which 5G VN (virtual network) group the protocol data unit PDU session of the UE belongs to by judging the data network name DNN carried by the user equipment UE. All PDU sessions in a 5G VN group can directly communicate between the user plane function UPF or multiple UPFs.
  • 5G VN virtual network
  • a PDU session can only belong to one 5G VN group, and it is distinguished by the DNN carried by the terminal.
  • the terminal of a data transmission unit DTU needs to directly communicate with multiple DTU terminals at the same time, and the 5G VN group formed by these DTUs is often dynamically changed , Then the terminal must carry more than 2 DNNs and establish more than 2 corresponding PDU sessions, which requires a very high complexity for the terminal and the network.
  • the purpose of the present disclosure is to provide a session management method and device, which solves the problem of realizing grouping requirements for different services.
  • the embodiments of the present disclosure provide a session management method, which is applied to a network side device, and the network side device is a session management function SMF, including:
  • the first configuration information includes at least one of a destination Internet Protocol IP address, a destination Uniform Resource Locator URL, or a destination port number of the data packet.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the method further includes:
  • the policy control function PCF for the policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • the embodiments of the present disclosure provide a session management method, which is applied to a network-side device, where the network-side device is a first UPF, and includes:
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • the method further includes:
  • the embodiments of the present disclosure provide a session management method, which is applied to a network-side device, where the network-side device is a second UPF, and includes:
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the method further includes:
  • the destination terminal IP address information and the destination terminal port number searching whether the destination terminal of the data packet is in the service range of the second UPF;
  • the embodiments of the present disclosure provide a network-side device, where the network-side device is an SMF and includes: a transceiver and a processor;
  • the transceiver is used to send first configuration information to a first user plane function UPF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session;
  • the transceiver is further configured to send second configuration information to a second UPF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the first configuration information includes at least one of a destination Internet Protocol IP address, a destination Uniform Resource Locator URL, or a destination port number of the data packet.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the transceiver is also used for:
  • the policy control function PCF for the policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • the embodiments of the present disclosure provide a network-side device, where the network-side device is a first UPF and includes: a transceiver and a processor;
  • the transceiver is configured to receive first configuration information sent by SMF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • the processor is configured to perform offloading according to at least one of a destination IP address, a destination URL, and a destination port number of the data packet, and send the offloaded data packet to a corresponding second UPF.
  • the embodiments of the present disclosure provide a network-side device, where the network-side device is a second UPF and includes: a transceiver and a processor;
  • the transceiver is used to receive second configuration information sent by the SMF, where the second configuration information is used to instruct the second UPF to locally forward the data packets of the virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the transceiver is further configured to receive a data packet sent by the first UPF;
  • the processor is configured to find whether the destination terminal of the data packet is in the service range of the second UPF according to the destination terminal IP address information and the destination terminal port number;
  • the transceiver is also configured to perform local routing and forwarding if the destination terminal is in the service range of the second UPF;
  • the embodiments of the present disclosure provide a session management apparatus, which is applied to a network-side device, where the network-side device is an SMF, and includes:
  • a first sending module configured to send first configuration information to a first user plane function UPF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session;
  • the second sending module is configured to send second configuration information to a second UPF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the first configuration information includes at least one of a destination Internet Protocol IP address, a destination Uniform Resource Locator URL, or a destination port number of the data packet.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the device further includes:
  • the query module is configured to query the policy control function PCF for policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • the embodiments of the present disclosure provide a session management apparatus, which is applied to a network-side device, where the network-side device is a first UPF, and includes:
  • the first receiving module is configured to receive first configuration information sent by the SMF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • the device further includes:
  • the first processing module is configured to perform offloading according to at least one of the destination IP address, the destination URL, and the destination port number of the data packet, and send the offloaded data packet to the corresponding second UPF.
  • the embodiments of the present disclosure provide a session management apparatus, which is applied to a network-side device, where the network-side device is a second UPF, and includes:
  • the second receiving module is configured to receive second configuration information sent by the SMF, where the second configuration information is used to instruct the second UPF to locally forward the data packets of the virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the device further includes:
  • the data packet receiving module is used to receive the data packet sent by the first UPF;
  • the third processing module is configured to find whether the destination terminal of the data packet is in the service range of the second UPF according to the destination terminal IP address information and the destination terminal port number;
  • a fourth processing module configured to perform local routing and forwarding if the destination terminal is within the service range of the second UPF
  • the fifth processing module is configured to forward the data packet to a third UPF or a local network if the destination terminal is not in the service range of the second UPF.
  • the embodiments of the present disclosure provide a network side device, including: a transceiver, a processor, a memory, and a computer program stored on the memory and running on the processor; the processor When the computer program is executed, the above-mentioned session management method applied to SMF, or the above-mentioned session management method applied to the first UPF, or the above-mentioned session management method applied to the second UPF is implemented.
  • the embodiments of the present disclosure provide a computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to implement the session management method applied to SMF as above, or as applied to The session management method of the first UPF, or the steps in the session management method of the second UPF as described above.
  • the method of the embodiment of the present disclosure by sending the first configuration information that configures the first UPF to offload the data packets of the PDU session, and the second configuration information that configures the second UPF to locally forward the data packets of the virtual network group, so that the first A UPF can first offload the data packets of the PDU session, and then locally forward the data packets corresponding to the second UPF after the offload, which meets the requirements of a PDU session to realize grouping of different services.
  • FIG. 1 is a schematic diagram of steps of a method applied to SMF according to an embodiment of the disclosure
  • Figure 2 is a schematic diagram of a scene of a PDU session
  • FIG. 3 is a schematic diagram of a specific application of applying the method of the embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of steps of a method applied to a first UPF according to an embodiment of the disclosure
  • FIG. 5 is a schematic diagram of steps of a method applied to a second UPF according to an embodiment of the disclosure
  • FIG. 6 is a schematic diagram of the structure of an SMF in an embodiment of the disclosure.
  • FIG. 7 is a schematic structural diagram of a first UPF according to an embodiment of the disclosure.
  • FIG. 8 is a schematic structural diagram of a second UPF according to an embodiment of the disclosure.
  • Fig. 9 is a schematic diagram of an apparatus according to an embodiment of the disclosure.
  • Fig. 10 is a schematic diagram of an apparatus according to another embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of an apparatus according to another embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • one embodiment or “an embodiment” mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present disclosure. Therefore, the appearances of "in one embodiment” or “in an embodiment” in various places throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean that B is determined only based on A, and B can also be determined based on A and/or other information.
  • a session management method is applied to a network-side device, and the network-side device is a session management function SMF, including:
  • Step 101 Send first configuration information to a first user plane function UPF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first UPF is a ULCL UPF with an uplink offload function.
  • the SMF can configure the ULCL UPF to offload data packets of the PDU session by sending the first configuration information to the ULCL UPF.
  • Step 102 Send second configuration information to a second UPF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the second UPF is a UPF with a session anchor function PSA.
  • the SMF can configure the PSA UPF to locally forward data packets of the configured virtual network group.
  • the virtual network group VN group refers to a terminal group that uses a designated data network name DNN to establish a session.
  • the network will perform unified management of the terminals in this group, such as unified quality of service QoS guarantee or unified online and offline.
  • the PSA UPF corresponds to the virtual network group one-to-one, for example, one 5G VN group corresponds to one PSA UPF.
  • step 101 and step 102 applying the SMF of the method of the embodiment of the present disclosure, by sending the first configuration information that configures the first UPF to offload the data packets of the PDU session, and configures the second UPF to perform the localization of the data packets of the virtual network group.
  • the forwarded second configuration information enables the first UPF to first offload the data packet of the PDU session, and then the second UPF corresponding to the offloaded data packet performs local forwarding to meet the requirements of a PDU session and grouping of different services.
  • step 101 and step 102 the execution order of step 101 and step 102 is not limited.
  • the first configuration information can be sent first and then the second configuration information can be sent, or the second configuration information can be sent first and then the first configuration information can be sent, or it can be sent synchronously.
  • the first configuration information and the second configuration information are not limited.
  • the first configuration information includes at least one of a destination Internet Protocol IP address, a destination Uniform Resource Locator URL, or a destination port number of the data packet.
  • the first configuration information sent to the first UPF includes at least one of the destination IP address, destination URL, or destination port number of the data packet, so that after receiving the first configuration information, the first UPF will pass the configuration meeting Based on at least one of the destination IP address, destination URL, and destination port number of the data packet, the data packets of the PDU session are decomposed into different PSAs and UPFs.
  • every data packet belongs to a virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the second configuration information sent to the PSA UPF includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information, so that PSA UPF, after receiving the second configuration information, the corresponding service data packet will be forwarded locally through the configuration.
  • the service identification information may be QoS flow ID.
  • the second configuration information may be issued by the SMF through the group-level N4 session.
  • the second UPF After receiving the second configuration information, the second UPF will, for the received data packet sent by the first UPF, find out whether the destination terminal of the data packet is within the service range of the second UPF; if so, it will perform local routing and forwarding, that is, the data The packet is directly forwarded to the destination terminal via the second UPF; if not, the data packet is forwarded to the third UPF (other PSA UPF) or the local network.
  • the third UPF other PSA UPF
  • the PSA UPF will filter the received ULCL UPF data packets to find out whether there is a target UE within the service range of the PSA UPF. If so, the PSA UPF will be directly routed and forwarded. , That is, the data packet is directly forwarded to the destination terminal via the PSA UPF. If the destination UE is not found, the PSA UPF will forward the data packet to other PSA UPF or pass the data packet to the N6 port.
  • the SMF is selected after the access and mobility management function AMF receives the PDU session establishment request initiated by the user equipment UE.
  • AMF selects SMF based on the subscribed network slice selection auxiliary information S-NSSAI and the data network name DNN (or access point name APN).
  • the PDU session initiated by the UE supports multiple virtual network groups, that is, the PDU session has multiple QoS flows, and multiple QoS flows belong to different virtual network groups.
  • the PDU session is established by the UE using a DNN (or APN), which is an exclusive DNN dedicated to the local network.
  • the method further includes:
  • the policy control function PCF for the policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the SMF before the SMF sends the first configuration information and the second configuration information, it will query the PCF for the policy information corresponding to the PDU session, so as to configure the UPF based on the policy information, and support one terminal in one PDU session. Services, and these multiple services belong to different virtual network groups, such as 5G VN group. After querying the policy information, it will be pre-configured on the SMF, and the SMF will configure the two policies on the corresponding UPF.
  • the policy information is divided into a local offload strategy and a virtual network group policy
  • the local offload policy includes first configuration information
  • the virtual network group policy includes second configuration information.
  • the policy information includes: how many virtual network groups need to be served when the PDU session is established. In this way, the SMF will send the adapted second configuration information to the PSA UPF.
  • the number of virtual network groups is equal to the number of PSA UPFs, and one PSA UPF is dedicated to local forwarding of data packets of one virtual network group.
  • the SMF can also obtain the subscription information for the PDU session establishment of the UE from the same data management UDM.
  • the subscription information will indicate that the PDU session supports multiple virtual network groups, and local offloading and virtual networks will be enabled. Group ability.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • This scenario is a PDU session initiated by a user equipment of an enterprise local network. Since the enterprise local network has a dedicated DNN, the UE uses a DNN to initiate a PDU session , The PDU session has multiple QoS flows, and these multiple QoS flows belong to different 5G VN groups.
  • the UE uses the DNN to initiate a PDU session to the AMF, such as sending a PDU session establishment request to the AMF.
  • the AMF receives the PDU session establishment request initiated by the UE, selects an appropriate SMF, and requests PDU session creation, such as sending Nsmf_PDUSession_CreateSMContext Request to the selected SMF.
  • the SMF goes to the PCF to query the policy information of the UE PDU session, the policy information includes: configuration information for ULCL UPF and configuration information for PSA UPF. Moreover, the policy information will indicate how many 5G VN group services need to be served when the PDU session is established. Among them, the strategy information is provided by AF to PCF through NEF.
  • SMF configures ULCL UPF and PSA UPF based on the queried policy information, so that the configured ULCL UPF can use at least one of the destination IP address, destination URL, or destination port number of the data packet to talk to the PDU After the configured PSA UPF receives the data packet with the configured service identification information, it is forwarded locally.
  • the SMF feeds back the AMF creation response of the PDU session.
  • the AMF feeds back the UE's response to the establishment of the PDU session.
  • the first configuration information configured to configure the first UPF to offload the data packets of the PDU session
  • the second configuration information configured to configure the second UPF to locally forward the data packets of the virtual network group
  • the configuration information enables the first UPF to first offload the data packets of the PDU session, and then the second UPF corresponding to the offloaded data packets perform local forwarding, which satisfies the requirements of a PDU session and grouping of different services.
  • a session management method is applied to a network-side device, where the network-side device is a first UPF, and includes:
  • Step 401 Receive first configuration information sent by SMF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first UPF is ULCL UPF
  • the SMF's requirements for ULCL UPF can be realized, and the data packets of the PDU session can be offloaded.
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • step 401 it further includes:
  • ULCL UPF After ULCL UPF receives the first configuration information, it will decompose the data packet of the PDU session into different PSAs UPF based on at least one of the destination IP address, destination URL and destination port number of the data packet through the configuration. .
  • every data packet belongs to a virtual network group.
  • the method of the embodiment of the present disclosure after receiving the first configuration information sent by the SMF, can be based on at least one of the destination IP address, destination URL, and destination port number of the data packet based on the indication of the first configuration information.
  • the data packets of the PDU session are offloaded, and then the offloaded data packets are sent to the corresponding PSA UPF for local forwarding to meet the requirements of a PDU session to realize grouping of different services.
  • the session management method of the embodiment of the present disclosure is applied to a network side device, where the network side device is a second UPF, and includes:
  • Step 501 Receive second configuration information sent by SMF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the second UPF is the PSA UPF
  • the SMF's requirement for the PSA UPF can be realized based on the instructions of the second configuration information, and the data packets of the corresponding virtual network group are locally forwarded.
  • PSA UPF corresponds to a virtual network group one-to-one, for example, one 5G VN group corresponds to one PSA UPF.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the second configuration information sent to the PSA UPF includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information, so that The PSA UPF, after receiving the second configuration information, will locally forward the data packets of the corresponding virtual network group through the configuration.
  • step 501 it further includes:
  • the destination terminal IP address information and the destination terminal port number searching whether the destination terminal of the data packet is in the service range of the second UPF;
  • the second UPF After the second UPF receives the second configuration information, for the received data packet sent by the first UPF, it will find out whether the destination terminal of the data packet is within the service range of the second UPF; if so, it will perform local routing and forwarding, that is The data packet is directly forwarded to the destination terminal via the second UPF; if not, the data packet is forwarded to the third UPF (other PSA UPF) or the local network.
  • the PSA UPF will filter the received ULCL UPF data packets to find out whether there is a target UE within the service range of the PSA UPF. If so, the PSA UPF will be directly routed and forwarded. , That is, the data packet is directly forwarded to the destination terminal via the PSA UPF. If the destination UE is not found, the PSA UPF will forward the data packet to other PSA UPF or pass the data packet to the N6 port.
  • the method of the embodiment of the present disclosure after receiving the second configuration information sent by the SMF, can receive the data packet sent by ULCL and UPF based on the indication of the second configuration information, and locally forward the data packet to satisfy a PDU session , Different businesses meet the needs of grouping.
  • the network-side device is an SMF600, and includes: a transceiver 610 and a processor 620;
  • the transceiver 610 is configured to send first configuration information to a first user plane function UPF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session;
  • the transceiver 610 is further configured to send second configuration information to a second UPF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the first configuration information includes at least one of a destination Internet Protocol IP address, a destination Uniform Resource Locator URL, or a destination port number of the data packet.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the transceiver 610 is also used to:
  • the policy control function PCF for the policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • the SMF sends the first configuration information that configures the first UPF to offload the data packets of the PDU session, and the second configuration information that configures the second UPF to locally forward the data packets of the virtual network group, so that the first UPF can first
  • the data packets of the PDU session are shunted, and then the second UPF corresponding to the data packets after the shunt is locally forwarded, which satisfies the requirements of a PDU session to realize grouping of different services.
  • the SMF applies the above-mentioned session management method applied to SMF, and the implementation manner of the embodiment of the above-mentioned session management method applied to SMF is applicable to this SMF, and the same technical effect can also be achieved.
  • the network-side device is a first UPF 700 and includes a transceiver 710 and a processor 720;
  • the transceiver 710 is configured to receive first configuration information sent by the SMF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • the processor 720 is configured to perform offloading according to at least one of the destination IP address, the destination URL, and the destination port number of the data packet, and send the offloaded data packet to the corresponding second UPF.
  • the first UPF After the first UPF receives the first configuration information sent by the SMF, it can use at least one of the destination IP address, destination URL, and destination port number of the data packet to respond to the data packet of the PDU session based on the instructions of the first configuration information. Perform offloading, and then send the offloaded data packets to the corresponding PSA UPF for local forwarding to meet the requirements of a PDU session and grouping of different services.
  • the first UPF applies the session management method applied to the first UPF, and the implementation manner of the embodiment of the method applied to the first UPF is applicable to the first UPF, and the same technical effect can also be achieved.
  • an embodiment of the present disclosure provides a network-side device, where the network-side device is a second UPF 800, and includes: a transceiver 810 and a processor 820;
  • the transceiver 810 is configured to receive second configuration information sent by the SMF, where the second configuration information is used to instruct the second UPF to locally forward the data packet of the virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the transceiver 810 is further configured to receive a data packet sent by the first UPF;
  • the processor 820 is configured to find whether the destination terminal of the data packet is in the service range of the second UPF according to the destination terminal IP address information and the destination terminal port number;
  • the transceiver 810 is also configured to perform local routing and forwarding if the destination terminal is within the service range of the second UPF;
  • the second UPF After the second UPF receives the second configuration information sent by the SMF, it can receive the data packets sent by ULCL and UPF based on the instructions of the second configuration information, and forward the data packets locally to satisfy a PDU session and realize grouping of different services. demand.
  • the second UPF applies a session management method applied to the second UPF, and the implementation manner of the above-mentioned method applied to the second UPF is applicable to the second UPF, and the same technical effect can also be achieved.
  • an embodiment of the present disclosure provides a session management apparatus, which is applied to a network-side device, where the network-side device is an SMF, and includes:
  • the first sending module 910 is configured to send first configuration information to a first user plane function UPF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session;
  • the second sending module 920 is configured to send second configuration information to a second UPF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the device further includes:
  • the query module is configured to query the policy control function PCF for policy information corresponding to the PDU session, where the policy information includes the first configuration information and the second configuration information.
  • the policy information is provided by the application function AF to the PCF through the network opening function NEF.
  • the device sends first configuration information that configures the first UPF to offload data packets of the PDU session, and configures the second configuration information that configures the second UPF to locally forward data packets of the virtual network group, so that the first UPF can first
  • the data packets of the PDU session are shunted, and then the second UPF corresponding to the data packets after the shunt is locally forwarded, which satisfies the requirements of a PDU session to realize grouping of different services.
  • the device applies the above-mentioned session management method applied to SMF, and the implementation manner of the embodiment of the above-mentioned session management method applied to SMF is applicable to this device, and the same technical effect can also be achieved.
  • an embodiment of the present disclosure provides a session management apparatus, which is applied to a network-side device, where the network-side device is a first UPF, and includes:
  • the first receiving module 1010 is configured to receive first configuration information sent by the SMF, where the first configuration information is used to instruct the first UPF to offload data packets of a protocol data unit PDU session.
  • the first configuration information includes at least one of a destination IP address, a destination URL, or a destination port number of the data packet.
  • the device further includes:
  • the first processing module is configured to perform offloading according to at least one of the destination IP address, the destination URL, and the destination port number of the data packet, and send the offloaded data packet to the corresponding second UPF.
  • the device After the device receives the first configuration information sent by the SMF, it is able to perform data packets of the PDU session from at least one of the destination IP address, destination URL, and destination port number of the data packet based on the instructions of the first configuration information. Split, and then send the split data packet to the corresponding PSA UPF for local forwarding, to meet the requirements of a PDU session to achieve grouping of different services.
  • the device applies the session management method applied to the first UPF, and the implementation manner of the embodiment of the method applied to the first UPF is applicable to the device, and the same technical effect can also be achieved.
  • an embodiment of the present disclosure provides a session management apparatus, which is applied to a network-side device, where the network-side device is a second UPF, and includes:
  • the second receiving module 1110 is configured to receive second configuration information sent by the SMF, where the second configuration information is used to instruct the second UPF to locally forward data packets of the virtual network group.
  • the second configuration information includes at least one of source terminal IP address information, source terminal port number, destination terminal IP address information, destination terminal port number, or service identification information.
  • the device further includes:
  • the data packet receiving module is used to receive the data packet sent by the first UPF;
  • the third processing module is configured to find whether the destination terminal of the data packet is in the service range of the second UPF according to the destination terminal IP address information and the destination terminal port number;
  • a fourth processing module configured to perform local routing and forwarding if the destination terminal is within the service range of the second UPF
  • the fifth processing module is configured to forward the data packet to a third UPF or a local network if the destination terminal is not in the service range of the second UPF.
  • the device After receiving the second configuration information sent by SMF, the device can receive data packets sent by ULCL and UPF based on the instructions of the second configuration information, and forward the data packets locally to meet the requirements of a PDU session and grouping of different services. .
  • the device applies the session management method applied to the second UPF, and the implementation manner of the embodiment of the method applied to the second UPF is applicable to the device, and the same technical effect can also be achieved.
  • the network side device of another embodiment of the present disclosure includes a transceiver 1210, a processor 1200, a memory 1220, and a computer program stored on the memory 1220 and running on the processor 1200;
  • the processor 1200 executes the computer program, the above session management method applied to SMF, or the above session management method applied to the first UPF, or the above session management method applied to the second UPF, is implemented when the processor 1200 executes the computer program.
  • the transceiver 1210 is configured to receive and send data under the control of the processor 1200.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1200 and various circuits of the memory represented by the memory 1220 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 1210 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1200 when performing operations.
  • a computer-readable storage medium has a computer program stored thereon, and the computer program, when executed by a processor, implements the above-mentioned session management method applied to SMF, or, as above, applied to the first UPF
  • the session management method or the steps in the session management method applied to the second UPF as above can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • an identified executable code module may include one or more physical or logical blocks of computer instructions, for example, it may be constructed as an object, process, or function. Nevertheless, the executable code of the identified module does not need to be physically located together, but can include different instructions stored in different bits. When these instructions are logically combined together, they constitute a module and implement the requirements of the module. purpose.
  • the executable code module may be a single instruction or many instructions, and may even be distributed on multiple different code segments, distributed in different programs, and distributed across multiple memory devices.
  • operating data can be identified within the module, and can be implemented in any suitable form and organized in any suitable type of data structure. The operating data may be collected as a single data set, or may be distributed in different locations (including on different storage devices), and at least partly may exist only as an electronic signal on a system or a network.
  • the module can be realized by software, taking into account the level of hardware technology in the related technology, so the module can be realized by software, regardless of the cost, those skilled in the art can build the corresponding hardware circuit to achieve the corresponding Functionally, the hardware circuit includes conventional very large-scale integration (VLSI) circuits or gate arrays and semiconductors or other discrete components in related technologies such as logic chips and transistors. Modules can also be implemented with programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.
  • VLSI very large-scale integration
  • programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.

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Abstract

本公开提供一种会话管理方法及设备。该方法应用于网络侧设备,所述网络侧设备为会话管理功能SMF,包括:发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。

Description

会话管理方法及设备
相关申请的交叉引用
本申请主张在2019年9月9日在中国提交的中国专利申请号No.201910866193.1的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,特别是指一种会话管理方法及设备。
背景技术
目前网络通过判断用户设备UE携带的数据网络名称DNN,来明确UE的协议数据单元PDU会话属于哪个5G VN(virtual network,虚拟网络)group。在一个5G VN group内的所有PDU会话,可以在用户面功能UPF或者多UPF之间直接通信。
然而,一个PDU会话只能属于一个5G VN group,而且是以终端携带的DNN为区分。如此,如果UE希望加入两个以上5G VN group,如电网场景下,一个数据传输单元DTU的终端需要同时与多个DTU终端直接通信,而且这些DTU之间组成的5G VN group是经常动态改变的,那么终端必须携带2个以上DNN,建立2个以上的对应PDU会话,对终端和网络的要求复杂度都很高。
发明内容
本公开的目的是提供一种会话管理方法及设备,解决了为不同业务实现分组的需求的问题。
为达到上述目的,本公开的实施例提供一种会话管理方法,应用于网络侧设备,所述网络侧设备为会话管理功能SMF,包括:
发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二 UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述方法还包括:
向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
为达到上述目的,本公开的实施例提供一种会话管理方法,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,在所述接收SMF发送的第一配置信息之后,还包括:
根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
为达到上述目的,本公开的实施例提供一种会话管理方法,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,在所述接收SMF发送的第二配置信息之后,还包括:
接收第一UPF发送的数据包;
根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
为达到上述目的,本公开的实施例提供一种网络侧设备,所述网络侧设备为SMF,包括:收发机和处理器;
所述收发机用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
所述收发机还用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述收发机还用于:
向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
为达到上述目的,本公开的实施例提供一种网络侧设备,所述网络侧设备为第一UPF,包括:收发机和处理器;
所述收发机用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,所述处理器用于根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
为达到上述目的,本公开的实施例提供一种网络侧设备,所述网络侧设备为第二UPF,包括:收发机和处理器;
所述收发机用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述收发机还用于接收第一UPF发送的数据包;
所述处理器用于根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
所述收发机还用于若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
为达到上述目的,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为SMF,包括:
第一发送模块,用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
第二发送模块,用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述装置还包括:
查询模块,用于向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
为达到上述目的,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
第一接收模块,用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,所述装置还包括:
第一处理模块,用于根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
为达到上述目的,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
第二接收模块,用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述装置还包括:
数据包接收模块,用于接收第一UPF发送的数据包;
第三处理模块,用于根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
第四处理模块,用于若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
第五处理模块,用于若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
为达到上述目的,本公开的实施例提供一种网络侧设备,包括:收发器、处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述处理器执行所述计算机程序时实现如上应用于SMF的会话管理方法,或者,如上应用于第一UPF的会话管理方法,或者,如上应用于第二UPF的会话管理方法。
为达到上述目的,本公开的实施例提供一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如上应用于SMF的 会话管理方法,或者,如上应用于第一UPF的会话管理方法,或者,如上应用于第二UPF的会话管理方法中的步骤。
本公开的上述技术方案的有益效果如下:
本公开实施例的方法,通过发送配置第一UPF对PDU会话的数据包进行分流的第一配置信息,以及配置第二UPF对虚拟网络组的数据包进行本地转发的第二配置信息,使得第一UPF能够先对PDU会话的数据包进行分流,然后由分流后数据包对应的第二UPF进行本地转发,满足了一个PDU会话,不同业务实现分组的需求。
附图说明
图1为本公开实施例的应用于SMF的方法步骤示意图;
图2为PDU会话的场景示意图;
图3为应用本公开实施例的方法的具体应用示意图;
图4为本公开实施例的应用于第一UPF的方法步骤示意图;
图5为本公开实施例的应用于第二UPF的方法步骤示意图;
图6为本公开实施例的SMF的结构示意图;
图7为本公开实施例的第一UPF的结构示意图;
图8为本公开实施例的第二UPF的结构示意图;
图9为本公开实施例的装置示意图;
图10为本公开另一实施例的装置示意图;
图11为本公开又一实施例的装置示意图;
图12本公开实施例的网络侧设备的结构示意图。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。
应理解,说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此,在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指 相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中,应理解,下述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本公开实施例的实施过程构成任何限定。
另外,本文中术语“系统”和“网络”在本文中常可互换使用。
在本申请所提供的实施例中,应理解,“与A相应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
如图1所示,本公开实施例的一种会话管理方法,应用于网络侧设备,所述网络侧设备为会话管理功能SMF,包括:
步骤101,发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
这里,第一UPF是具有上行分流功能ULCL的UPF,SMF通过发送第一配置信息至ULCL UPF,可配置ULCL UPF对PDU会话的数据包进行分流。
步骤102,发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
这里,第二UPF是具有会话锚点功能PSA的UPF,SMF通过发送第二配置信息至PSA UPF,可配置PSA UPF针对所配置的虚拟网络组的数据包进行本地转发。其中,虚拟网络组VN group是指使用一个指定数据网名称DNN建立会话的终端组,网络将对这个组内的终端进行统一管理,例如统一服务质量QoS保障或统一上下线。可选地,PSA UPF与虚拟网络组一一对应,如一个5G VN group对应一个PSA UPF。
通过步骤101和步骤102,应用本公开实施例方法的SMF,通过发送配置第一UPF对PDU会话的数据包进行分流的第一配置信息,以及配置第二UPF对虚拟网络组的数据包进行本地转发的第二配置信息,使得第一UPF能够先对PDU会话的数据包进行分流,然后由分流后数据包对应的第二UPF进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
该实施例中,并未限定步骤101和步骤102的执行顺序,可先发第一配置信息后发第二配置信息,也可先发第二配置信息后发第一配置信息,也可同步发送第一配置信息和第二配置信息。
可选地,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
这里,发送至第一UPF的第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种,使得第一UPF在接收到该第一配置信息后,通过配置会基于数据包的目的IP地址、目的URL和目的端口号中的至少一种,将PDU会话的数据包分解到不同的PSA UPF上。当然,每一个数据包属于一个虚拟网络组。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
这里,发送至PSA UPF(第二UPF)的第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种,使得PSA UPF,在接收到该第二配置信息后,通过配置会针对对应的业务数据包进行本地转发。
其中,业务标识信息可以是QoS flow ID。该第二配置信息可是SMF通过group-level N4 session下发的。
第二UPF接收第二配置信息后,会对于接收的第一UPF发送的数据包,查找该数据包的目的终端是否处于该第二UPF的服务范围;若是,则进行本地路由转发,即该数据包直接经第二UPF转发至目的终端;若否,则将该数据包转发至第三UPF(其它PSA UPF)或本地网络。
具体的,如图2所示,PSA UPF会对接收的ULCL UPF发送的数据包进行过滤,查找在该PSA UPF服务范围下,是否有目的UE存在,如果有,那么该PSA UPF直接做路由转发,即该数据包直接经该PSA UPF转发至目的终端。如果没有找到目的UE,那么该PSA UPF会把该数据包转发至其它PSA UPF或把该数据包传递到N6口。
应该知道的是,该实施例中,SMF是访问和移动性管理功能AMF收到用户设备UE发起的PDU session establishment request后选择的。其中,AMF 是根据签约的网络切片选择辅助信息S-NSSAI和数据网名称DNN(或接入点名称APN)选择SMF。而该UE发起的PDU会话,是支持多虚拟网络组的,即PDU会话有多个服务质量流QoS flow,且多个QoS flow属于不同的虚拟网络组。并且,该PDU会话是UE使用一个DNN(或APN)建立的,该DNN是专用于本地网络的独享DNN。
可选地,所述方法还包括:
向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
这里,SMF在发送第一配置信息和第二配置信息之前,会向PCF查询该PDU会话对应的策略信息,从而基于该策略信息对UPF进行配置,支持一个终端在一个PDU会话中,可以使用多个业务,并且这多个业务属于不同的虚拟网络组,如5G VN group。查询到该策略信息后,将预配置到SMF上,SMF将两个策略配置到对应的UPF上。
其中,该策略信息分为本地分流策略和虚拟网络组策略,该本地分流策略包括第一配置信息,该虚拟网络组策略包括第二配置信息。而且,该策略信息中包括:该PDU会话建立时,需要为多少个虚拟网络组服务。如此,SMF会向PSA UPF发送适应的第二配置信息。可选地,虚拟网络组的数量等于PSA UPF的数量,一个PSA UPF专用于为一个虚拟网络组的数据包进行本地转发。
当然,SMF在向PCF获取策略信息前,还可以向同一数据管理UDM获取针对UE的PDU会话建立的签约信息,该签约信息会说明该PDU会话支持多虚拟网络组,将启用本地分流和虚拟网络组能力。
在该实施例中,可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
下面,结合图3,说明本公开实施例方法在具体场景下的应用,该场景为企业本地网用户设备发起的PDU会话,由于该企业本地网具有专用的DNN,UE使用一个DNN发起一个PDU会话,该PDU会话有多个QoS flow,这多个QoS flow流属于不同的5G VN group。
1、UE使用该DNN向AMF发起PDU会话,如发送PDU session  establishment request至AMF。
2、AMF收到UE发起的PDU session establishment request,选择合适的SMF,请求PDU会话创建,如发送Nsmf_PDUSession_CreateSMContext Request至所选的SMF。
3、SMF去PCF查询该UE PDU会话的策略信息,该策略信息包括:针对ULCL UPF的配置信息和针对PSA UPF的配置信息。而且,该策略信息会说明该PDU会话建立时,需要为多少个5G VN group服务。其中,该策略信息是AF通过NEF向PCF提供的。
4、SMF基于查询到的策略信息分别对ULCL UPF和PSA UPF进行配置,使得配置后的ULCL UPF可根据数据包的目的IP地址、目的URL或目的端口号中的至少一种,对该PDU会话的数据包进行分流;配置后的PSA UPF接收到具有所配置的业务标识信息的数据包后,进行本地转发。
5、SMF在ULCL UPF和PSA UPF配置完成后,反馈AMF该PDU会话的创建响应。
6、AMF基于SMF的反馈,反馈UE该PDU会话的建立响应。
综上所述,本公开实施例的方法,通过发送配置第一UPF对PDU会话的数据包进行分流的第一配置信息,以及配置第二UPF对虚拟网络组的数据包进行本地转发的第二配置信息,使得第一UPF能够先对PDU会话的数据包进行分流,然后由分流后数据包对应的第二UPF进行本地转发,满足了一个PDU会话,不同业务实现分组的需求。
如图4所示,本公开实施例的一种会话管理方法,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
步骤401,接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
这里,第一UPF是ULCL UPF,通过接收SMF发送的第一配置信息,可基于该第一配置信息的指示,实现SMF对ULCL UPF的需求,对PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,在步骤401之后,还包括:
根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
如此,ULCL UPF在接收到该第一配置信息后,通过配置会基于数据包的目的IP地址、目的URL和目的端口号中的至少一种,将PDU会话的数据包分解到不同的PSA UPF上。当然,每一个数据包属于一个虚拟网络组。
这样,本公开实施例的方法,在接收SMF发送的第一配置信息后,就能够基于第一配置信息的指示,由数据包的目的IP地址、目的URL和目的端口号中的至少一种,对PDU会话的数据包进行分流,然后将分流后数据包发送至对应的PSA UPF进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该方法是配合上述应用于SMF的方法实现的,上述应用于SMF的方法的实施例的实现方式适用于该方法,也能达到相同的技术效果。
如图5所示,本公开实施例的会话管理方法,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
步骤501,接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
这里,第二UPF是PSA UPF,通过接收SMF发送的第二配置信息,可基于该第二配置信息的指示,实现SMF对PSA UPF的需求,针对对应的虚拟网络组的数据包进行本地转发。
其中,PSA UPF与虚拟网络组一一对应,如一个5G VN group对应一个PSA UPF。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
这里,发送至PSA UPF(第二UPF)的第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种,使得PSA UPF,在接收到该第二配置信息后,通过配置会针对对应的虚拟网络组的数据包进行本地转发。
可选地,在步骤501之后,还包括:
接收第一UPF发送的数据包;
根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
如此,第二UPF接收第二配置信息后,会对于接收的第一UPF发送的数据包,查找该数据包的目的终端是否处于该第二UPF的服务范围;若是,则进行本地路由转发,即该数据包直接经第二UPF转发至目的终端;若否,则将该数据包转发至第三UPF(其它PSA UPF)或本地网络。
具体的,如图2所示,PSA UPF会对接收的ULCL UPF发送的数据包进行过滤,查找在该PSA UPF服务范围下,是否有目的UE存在,如果有,那么该PSA UPF直接做路由转发,即该数据包直接经该PSA UPF转发至目的终端。如果没有找到目的UE,那么该PSA UPF会把该数据包转发至其它PSA UPF或把该数据包传递到N6口。
这样,本公开实施例的方法,在接收SMF发送的第二配置信息后,就能够基于第二配置信息的指示,接收ULCL UPF发送的数据包,并对数据包进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该方法是配合上述应用于SMF的方法实现的,上述应用于SMF的方法的实施例的实现方式适用于该方法,也能达到相同的技术效果。
如图6所示,本公开的实施例提供一种网络侧设备,所述网络侧设备为SMF600,包括:收发机610和处理器620;
所述收发机610用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
所述收发机610还用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述收发机610还用于:
向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
该SMF通过发送配置第一UPF对PDU会话的数据包进行分流的第一配置信息,以及配置第二UPF对虚拟网络组的数据包进行本地转发的第二配置信息,使得第一UPF能够先对PDU会话的数据包进行分流,然后由分流后数据包对应的第二UPF进行本地转发,满足了一个PDU会话,不同业务实现分组的需求。
需要说明的是,该SMF应用了上述应用于SMF的会话管理方法,上述应用于SMF的会话管理方法的实施例的实现方式适用于该SMF,也能达到相同的技术效果。
如图7所示,本公开的实施例提供一种网络侧设备,所述网络侧设备为第一UPF700,包括:收发机710和处理器720;
所述收发机710用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,所述处理器720用于根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
第一UPF在接收SMF发送的第一配置信息后,就能够基于第一配置信息的指示,由数据包的目的IP地址、目的URL和目的端口号中的至少一种,对PDU会话的数据包进行分流,然后将分流后数据包发送至对应的PSA UPF进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该第一UPF应用了应用于第一UPF的会话管理方法,上 述应用于第一UPF的方法的实施例的实现方式适用于该第一UPF,也能达到相同的技术效果。
如图8所示,本公开的实施例提供一种网络侧设备,所述网络侧设备为第二UPF800,包括:收发机810和处理器820;
所述收发机810用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述收发机810还用于接收第一UPF发送的数据包;
所述处理器820用于根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
所述收发机810还用于若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
第二UPF在接收SMF发送的第二配置信息后,就能够基于第二配置信息的指示,接收ULCL UPF发送的数据包,并对数据包进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该第二UPF应用了应用于第二UPF的会话管理方法,上述应用于第二UPF的方法的实施例的实现方式适用于该第二UPF,也能达到相同的技术效果。
如图9所示,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为SMF,包括:
第一发送模块910,用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
第二发送模块920,用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口 号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述装置还包括:
查询模块,用于向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
可选地,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
该装置通过发送配置第一UPF对PDU会话的数据包进行分流的第一配置信息,以及配置第二UPF对虚拟网络组的数据包进行本地转发的第二配置信息,使得第一UPF能够先对PDU会话的数据包进行分流,然后由分流后数据包对应的第二UPF进行本地转发,满足了一个PDU会话,不同业务实现分组的需求。
需要说明的是,该装置应用了上述应用于SMF的会话管理方法,上述应用于SMF的会话管理方法的实施例的实现方式适用于该装置,也能达到相同的技术效果。
如图10所示,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
第一接收模块1010,用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
可选地,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
可选地,所述装置还包括:
第一处理模块,用于根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
该装置在接收SMF发送的第一配置信息后,就能够基于第一配置信息的指示,由数据包的目的IP地址、目的URL和目的端口号中的至少一种,对PDU会话的数据包进行分流,然后将分流后数据包发送至对应的PSA UPF进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该装置应用了应用于第一UPF的会话管理方法,上述应 用于第一UPF的方法的实施例的实现方式适用于该装置,也能达到相同的技术效果。
如图11所示,本公开的实施例提供一种会话管理装置,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
第二接收模块1110,用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
可选地,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
可选地,所述装置还包括:
数据包接收模块,用于接收第一UPF发送的数据包;
第三处理模块,用于根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
第四处理模块,用于若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
第五处理模块,用于若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
该装置在接收SMF发送的第二配置信息后,就能够基于第二配置信息的指示,接收ULCL UPF发送的数据包,并对数据包进行本地转发,满足一个PDU会话,不同业务实现分组的需求。
需要说明的是,该装置应用了应用于第二UPF的会话管理方法,上述应用于第二UPF的方法的实施例的实现方式适用于该装置,也能达到相同的技术效果。
本公开另一实施例的网络侧设备,如图12所示,包括收发器1210、处理器1200、存储器1220及存储在所述存储器1220上并可在所述处理器1200上运行的计算机程序;所述处理器1200执行所述计算机程序时实现如上应用于SMF的会话管理方法,或者,如上应用于第一UPF的会话管理方法,或者,如上应用于第二UPF的会话管理方法。
所述收发器1210,用于在处理器1200的控制下接收和发送数据。
其中,在图12中,总线架构可以包括任意数量的互联的总线和桥,具体 由处理器1200代表的一个或多个处理器和存储器1220代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发器1210可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。处理器1200负责管理总线架构和通常的处理,存储器1220可以存储处理器1200在执行操作时所使用的数据。
本公开实施例的一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如上所述的应用于SMF的会话管理方法,或者,如上应用于第一UPF的会话管理方法,或者,如上应用于第二UPF的会话管理方法中的步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
进一步需要说明的是,此说明书中所描述的许多功能部件都被称为模块,以便更加特别地强调其实现方式的独立性。
本公开实施例中,模块可以用软件实现,以便由各种类型的处理器执行。举例来说,一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块,举例来说,其可以被构建为对象、过程或函数。尽管如此,所标识模块的可执行代码无需物理地位于一起,而是可以包括存储在不同位里上的不同的指令,当这些指令逻辑上结合在一起时,其构成模块并且实现该模块的规定目的。
实际上,可执行代码模块可以是单条指令或者是许多条指令,并且甚至可以分布在多个不同的代码段上,分布在不同程序当中,以及跨越多个存储器设备分布。同样地,操作数据可以在模块内被识别,并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集,或者可以分布在不同位置上(包括在不同存储设备上),并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时,考虑到相关技术中的硬件工艺的水平,所以可以以软件实现的模块,在不考虑成本的情况下,本领域技术人员都可以 搭建对应的硬件电路来实现对应的功能,所述硬件电路包括常规的超大规模集成(VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的相关技术中的半导体或者是其它分立的元件。模块还可以用可编程硬件设备,诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
上述范例性实施例是参考该些附图来描述的,许多不同的形式和实施例是可行而不偏离本公开精神及教示,因此,本公开不应被建构成为在此所提出范例性实施例的限制。更确切地说,这些范例性实施例被提供以使得本公开会是完善又完整,且会将本公开范围传达给那些熟知此项技术的人士。在该些图式中,组件尺寸及相对尺寸也许基于清晰起见而被夸大。在此所使用的术语只是基于描述特定范例性实施例目的,并无意成为限制用。如在此所使用地,除非该内文清楚地另有所指,否则该单数形式“一”、“一个”和“该”是意欲将该些多个形式也纳入。会进一步了解到该些术语“包含”及/或“包括”在使用于本说明书时,表示所述特征、整数、步骤、操作、构件及/或组件的存在,但不排除一或更多其它特征、整数、步骤、操作、构件、组件及/或其族群的存在或增加。除非另有所示,陈述时,一值范围包含该范围的上下限及其间的任何子范围。
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (27)

  1. 一种会话管理方法,应用于网络侧设备,所述网络侧设备为会话管理功能SMF,包括:
    发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
    发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  2. 根据权利要求1所述的方法,其中,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
  3. 根据权利要求1所述的方法,其中,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
  4. 根据权利要求1所述的方法,还包括:
    向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策略信息包括所述第一配置信息和所述第二配置信息。
  5. 根据权利要求4所述的方法,其中,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
  6. 一种会话管理方法,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
    接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
  7. 根据权利要求6所述的方法,其中,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
  8. 根据权利要求7所述的方法,其中,在所述接收SMF发送的第一配置信息之后,还包括:
    根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,
    并将所述分流后的数据包发送至对应的第二UPF。
  9. 一种会话管理方法,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
    接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  10. 根据权利要求9所述的方法,其中,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
  11. 根据权利要求10所述的方法,其中,在所述接收SMF发送的第二配置信息之后,还包括:
    接收第一UPF发送的数据包;
    根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
    若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
    若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
  12. 一种网络侧设备,所述网络侧设备为SMF,包括:收发机和处理器;
    所述收发机用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
    所述收发机还用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  13. 根据权利要求12所述的设备,其中,所述第一配置信息至少包括:数据包的目的互联网协议IP地址、目的统一资源定位符URL或目的端口号中的一种。
  14. 根据权利要求12所述的设备,其中,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
  15. 根据权利要求12所述的设备,其中,所述收发机还用于:
    向策略控制功能PCF查询所述PDU会话对应的策略信息,其中所述策 略信息包括所述第一配置信息和所述第二配置信息。
  16. 根据权利要求15所述的设备,其中,所述策略信息是应用功能AF通过网络开放功能NEF向PCF提供的。
  17. 一种网络侧设备,所述网络侧设备为第一UPF,包括:收发机和处理器;
    所述收发机用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
  18. 根据权利要求17所述的设备,其中,所述第一配置信息至少包括:数据包的目的IP地址、目的URL或目的端口号中的一种。
  19. 根据权利要求18所述的设备,其中,
    所述处理器用于根据所述数据包的目的IP地址、目的URL和目的端口号中的至少一种进行分流,并将所述分流后的数据包发送至对应的第二UPF。
  20. 一种网络侧设备,所述网络侧设备为第二UPF,包括:收发机和处理器;
    所述收发机用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  21. 根据权利要求20所述的设备,其中,所述第二配置信息至少包括:源终端IP地址信息、源终端端口号、目的终端IP地址信息、目的终端端口号或业务标识信息中的一种。
  22. 根据权利要求21所述的设备,其中,
    所述收发机还用于接收第一UPF发送的数据包;
    所述处理器用于根据所述目的终端IP地址信息和目的终端端口号,查找所述数据包的目的终端是否处于所述第二UPF的服务范围;
    所述收发机还用于若所述目的终端处于所述第二UPF的服务范围,则进行本地路由转发;
    若所述目的终端未处于所述第二UPF的服务范围,则将所述数据包转发至第三UPF或本地网络。
  23. 一种会话管理装置,应用于网络侧设备,所述网络侧设备为SMF,包括:
    第一发送模块,用于发送第一配置信息至第一用户面功能UPF,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流;
    第二发送模块,用于发送第二配置信息至第二UPF,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  24. 一种会话管理装置,应用于网络侧设备,所述网络侧设备为第一UPF,包括:
    第一接收模块,用于接收SMF发送的第一配置信息,所述第一配置信息用于指示所述第一UPF对协议数据单元PDU会话的数据包进行分流。
  25. 一种会话管理装置,应用于网络侧设备,所述网络侧设备为第二UPF,包括:
    第二接收模块,用于接收SMF发送的第二配置信息,所述第二配置信息用于指示所述第二UPF对虚拟网络组的数据包进行本地转发。
  26. 一种网络侧设备,包括:收发器、处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序;所述处理器执行所述计算机程序时实现如权利要求1-5任一项所述的会话管理方法,或者,如权利要求6-8任一项所述的会话管理方法,或者,如权利要求9-11任一项所述的会话管理方法。
  27. 一种计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1-5任一项所述的会话管理方法,或者,如权利要求6-8任一项所述的会话管理方法,或者,如权利要求9-11任一项所述的会话管理方法中的步骤。
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