WO2020059149A1 - Nœud de réseau - Google Patents

Nœud de réseau Download PDF

Info

Publication number
WO2020059149A1
WO2020059149A1 PCT/JP2018/035223 JP2018035223W WO2020059149A1 WO 2020059149 A1 WO2020059149 A1 WO 2020059149A1 JP 2018035223 W JP2018035223 W JP 2018035223W WO 2020059149 A1 WO2020059149 A1 WO 2020059149A1
Authority
WO
WIPO (PCT)
Prior art keywords
smf
upf
relocation
pdu session
network node
Prior art date
Application number
PCT/JP2018/035223
Other languages
English (en)
Japanese (ja)
Inventor
優樹 勝間田
淳 巳之口
マラ レディ サマ
リカルド グエルゾーニ
スリサクル タコルスリ
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to CN201880097546.XA priority Critical patent/CN112690039B/zh
Priority to PCT/JP2018/035223 priority patent/WO2020059149A1/fr
Publication of WO2020059149A1 publication Critical patent/WO2020059149A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/24—Interfaces between hierarchically similar devices between backbone network devices

Definitions

  • the present invention relates to a network node in a wireless communication system.
  • 5G or NR New Radio
  • 5G wireless communication system
  • 5G various wireless technologies are being studied in order to satisfy the requirement that the delay in a wireless section be 1 ms or less while realizing a throughput of 10 Gbps or more.
  • 5G Core Network corresponding to EPC (Evolved Packet Core), which is a core network in LTE (Long Term Evolution) network architecture, and E-UTRAN (Radio Access Network) in LTE network architecture
  • EPC Evolved Packet Core
  • LTE Long Term Evolution
  • E-UTRAN Radio Access Network
  • a network architecture including an NG-RAN (Next Generation-Radio Access Network) corresponding to Evolved Universal Terrestrial Radio Access Network has been studied (for example, Non-Patent Document 1).
  • the present invention has been made in view of the above points, and has as its object to appropriately perform PDU session relocation according to a network architecture and a trigger.
  • a control unit that determines execution of relocation of a UPF (User Plane Function) and a session ID of a PDU (Protocol Data Unit) and an SMF (Session Management Function) related to the relocated UPF
  • a network node having a transmission unit for transmitting a relocation instruction including an address to the access and mobility management (AMF) via the SMF or directly.
  • AMF access and mobility management
  • PDU session relocation can be appropriately performed according to the network architecture and the trigger.
  • FIG. 2 is a diagram for describing an outline of a network architecture.
  • FIG. 3 is a diagram illustrating a configuration example (1) of a network.
  • FIG. 14 is a sequence diagram for describing an example of PDU session relocation.
  • FIG. 3 is a diagram illustrating a configuration example (2) of a network.
  • FIG. 8 is a diagram illustrating an example of PDU session relocation according to the embodiment of the present invention.
  • FIG. 5 is a sequence diagram for explaining a trigger of PDU session relocation according to the embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a configuration example (1) of a network according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a configuration example (2) of a network according to the embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a configuration example (1) of a network according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a configuration example (2) of a network according to the embodiment of the present invention.
  • FIG. 9 is a sequence diagram illustrating an example (1) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • FIG. 9 is a sequence diagram illustrating an example (2) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention. It is a sequence diagram for demonstrating the example (1) of PDU session rearrangement by O & M trigger in Embodiment of this invention. It is a sequence diagram for demonstrating the example (2) of PDU session rearrangement by O & M trigger in Embodiment of this invention. It is a sequence diagram for demonstrating the example (3) of PDU session rearrangement by O & M trigger in Embodiment of this invention.
  • FIG. 14 is a sequence diagram for explaining an example (3) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • FIG. 14 is a sequence diagram illustrating an example (4) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • It is a sequence diagram for demonstrating the example (5) of PDU session rearrangement by O & M trigger in Embodiment of this invention.
  • FIG. 2 is a diagram illustrating an example of a functional configuration of a network node 10 according to the embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an example of a functional configuration of a user device 20 according to the embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an example of a hardware configuration of a network node 10 or a user device 20 according to the embodiment of the present invention.
  • LTE Long Term Evolution
  • NR NR-Advanced
  • LAN Local Area Network
  • the term “configure” of the wireless parameter or the like may mean that a predetermined value is set in advance (Pre-configure), or the network node 10 or The wireless parameter notified from the user device 20 may be set.
  • FIG. 1 is a diagram for explaining an outline of a network architecture.
  • the network shown in FIG. 1 includes an Evolved Packet Core (EPC), a Packet Core such as a 5G Core Network (5GC), a User Plane Function (UPF), and a User Equipment (UE).
  • EPC Evolved Packet Core
  • Packet Core such as a 5G Core Network (5GC)
  • UPF User Plane Function
  • UE User Equipment
  • the UPF is a network node 10 having functions such as a PDU (Protocol Data Unit) session point for external connection with a DN (Data Network), packet routing and forwarding, and QoS (Quality of Service) handling of the user plane.
  • PDU Protocol Data Unit
  • DN Data Network
  • QoS Quality of Service
  • FIG. 2 is a diagram illustrating a configuration example (1) of a network.
  • the network includes a UE that is a user apparatus 20 and a plurality of network nodes 10.
  • one network node 10 corresponds to each function, but a plurality of functions may be realized by one network node 10 or a plurality of network nodes 10 may realize one function.
  • the “connection” described below may be a logical connection or a physical connection.
  • RAN Radio Access Network
  • AMF Access Mobility Management Function
  • UPF User plane function
  • the AMF is a network node 10 having functions such as an end of a RAN interface, an end of a NAS (Non-Access @ Stratum), registration management, connection management, reachability management, and mobility management.
  • AMF is connected to RAN and SMF (Session Management Function).
  • the UPF is a network node 10 having functions such as a PDU (Protocol Data Unit) session point to the outside interconnected with a DN (Data Network), packet routing and forwarding, and QoS (Quality of Service) handling of the user plane.
  • the DN has a DC (Data @ Center) # 1 and a DC # 2.
  • DC # 1 includes an application server V2X-App # 1a
  • DC # 2 includes an application server V2X-App # 1b.
  • the $ SMF is a network node 10 having functions such as session management, UE IP (Internet Protocol) address assignment and management, DHCP (Dynamic Host Configuration Protocol) function, ARP (Address Resolution Protocol) proxy, and roaming function.
  • the SMF is connected to the UPF and the PCF (Policy @ Control @ Function) / NEF (Network @ Exposure @ Function).
  • the $ NEF is a network node 10 having a function of notifying another NF (Network $ Function) of a capability and an event.
  • the PCF is a network node 10 having a function of performing network policy control.
  • PCF / NEF is connected to SMF and AF (Application @ Function).
  • the AF is a network node 10 having a function of controlling an application server.
  • the AF is connected to DC # 1 and DC # 2.
  • FIG. 3 is a sequence diagram for explaining an example of PDU session relocation.
  • FIG. 3 is an example of a sequence for relocating a PDU session in SSC mode 3.
  • SMF # 1 manages UPF # 1
  • SMF # 2 manages UPF # 2.
  • SMF # 1 determines that relocation of UPF and SMF is necessary.
  • the SMF # 1 notifies the AMF and the UE of the change of the PDU session.
  • a UE-initiated UPD # 2 PDU session establishment procedure is performed. After the PDU session is established between the UE and UPF # 2, the PDU session of UPF # 1 is released.
  • FIG. 4 is a diagram showing a configuration example (2) of the network according to the embodiment of the present invention.
  • DNN Data ⁇ Network ⁇ Name
  • DNN includes an application server. It is assumed that the UE has established the PDU session of SSC mode 3 with the application server V2X-app # 1a included in the DNN.
  • the SMF determines to move the connection of the UE to the UPF # 2 by some trigger such as load distribution.
  • the SMF relocates the PDU session of UPF # 1 to the PDU session of UPF # 2.
  • the application server V2X-app # 1a included in the DNN is not changed in the above example.
  • the SMF determines that the relocation of the UPF is necessary, and the determination triggers the relocation procedure of the UPF.
  • FIG. 5 is a diagram illustrating an example of PDU session relocation according to the embodiment of the present invention.
  • Case # 1 shown in FIG. 5 is a PDU session handover in SSC mode 3 between UPFs controlled by different SMFs.
  • Case # 2 shown in FIG. 5 is a PDU session handover in SSC mode 3 between UPFs controlled by the same SMF.
  • a solid arrow indicates an old PDU session and a dashed arrow indicates a new PDU session.
  • FIG. 6 is a sequence diagram for explaining a trigger of PDU session relocation according to the embodiment of the present invention.
  • the PDU session relocation for example, the following three types of triggers are assumed.
  • the SMF determines the relocation of the UPF in the SSC-3 based on the trigger from the AMF. For example, the message is triggered by Nsmf_PDUSession_UpdateSMContext shown in FIG.
  • the SMF determines that the relocation of the UPF is necessary, and the relocation process from the UPF1 to the UPF2 is executed.
  • the UL / DL data transmission / reception between the UE and the UPF1 is performed based on the UL / DL between the UE and the UPF2. Switch to DL data transmission / reception.
  • FIG. 7 is a diagram illustrating a configuration example (1) of a network according to the embodiment of the present invention.
  • the network according to the embodiment of the present invention is a network including two SMFs, SMF # 1 and SMF # 2.
  • different SMFs are one of the architectures for controlling different UPFs.
  • the configuration of the connection between the AMF and the SMF is such that the AMF and the SMF # 2 are connected and the SMF # 2 and the SMF # 1 are connected. That is, AMF and SMF # 1 are not directly connected.
  • the network shown in FIG. 7 is hereinafter referred to as architecture # 1.
  • FIG. 8 is a diagram illustrating a configuration example (2) of the network according to the embodiment of the present invention.
  • the network according to the embodiment of the present invention is a network including two SMFs, SMF # 1 and SMF # 2.
  • different SMFs are one of the architectures for controlling different UPFs.
  • the configuration of the connection between the AMF and the SMF is such that the AMF and the SMF # 1 are connected, and the SMF # 1 and the SMF # 2 are connected. That is, AMF and SMF # 2 are not directly connected.
  • the network shown in FIG. 8 is hereinafter referred to as architecture # 2.
  • FIG. 9 is a sequence diagram illustrating an example (1) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • UPF # 1 is an anchor, but traffic is also transferring UPF # 2, and a PDU session between the UE and UPF # 2 already exists.
  • FIG. 9 is a sequence executed in the architecture # 1 shown in FIG. 7, and shows an operation in SSC mode 3. Further, FIG. 9 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • the AF notifies the SMF # 1 of the relocation of the DN via the PCF (AF Request for relocation, 2.Npcf_SMPolicyControl_UpdateNotify). Subsequently, SMF # 1 decides to move the session to SMF # 2 and UPF # 2 (3. ⁇ Determine ⁇ ⁇ session ⁇ need ⁇ to ⁇ move ⁇ to ⁇ SMF # 2 ⁇ and ⁇ UPF # 2). Subsequently, SMF # 1 forwards an instruction to AMF to SMF # 2 (4. @ Nsmf_ServiceRelocation). Nsmf_ServiceRelocation includes UE @ ID, PDU session ID, and relocation instruction.
  • the SMF # 2 notifies the AMF of the forwarded instruction and the address of the destination SMF # 2 (5. @ Namf_Communication_N1N2MessageTransfer).
  • the AMF transmits an instruction to switch the PDU session to the UE, and receives a request to establish a new PDU session from the UE (6. PDU Session Modification Command, 7. PDU Session Est Req).
  • the AMF selects the SMF # 2 based on the instruction from the SMF # 1 (8. AMF Selects the SMF # 2 due to indication by SMF # 1 and forwardsboth the old & New PDU Sessions ID).
  • the AMF notifies the SMF # 2 of a PDU session establishment and release request including both the new and old PDU session IDs (9. ⁇ PDU ⁇ Session ⁇ Req).
  • the SMF # 2 selects the UPF # 2 as a new anchor (10.MFSMF # 2 selects the UPF # 2 due the indication, that it knows the UE already connected UPF # 2). Since the PDU session between the UPF # 2 and the UE has already been established, the PDU session establishment sequence is not executed and the UE is rearranged. The old PDU session is released after the UPD # 2 and the PDU session of the UE are rearranged.
  • FIG. 10 is a sequence diagram illustrating an example (2) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • FIG. 10 is a sequence executed in the architecture # 2 shown in FIG. 7, and shows an operation in SSC mode 3. Further, FIG. 10 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • FIG. 11 is a sequence diagram illustrating an example (1) of PDU session relocation by O & M trigger according to the embodiment of the present invention.
  • FIG. 11 is a sequence executed in the architecture # 1 shown in FIG. 7, and shows an operation in SSC mode 2. Further, FIG. 11 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • Nsmf_ServiceRelease includes a UE @ ID, a PDU session ID, and a release instruction that selects SMF # 2 and does not select SMF # 1.
  • the SMF # 2 notifies the AMF of the instruction forwarded and the instruction not to select the SMF # 1 (5. @ Namf_Communication_N1N2MessageTransfer).
  • the PDU session is released by the SMF # 1 and the UE (3. ⁇ PDU ⁇ Session ⁇ Release).
  • a request for establishing a new PDU session is received from the UE (4. PDU Session Est Req).
  • the AMF selects SMF # 2 based on the instruction from SMF # 1 (5. AMF Selects the SMF # 2 due to indicaton by SMF # 1).
  • the AMF notifies the SMF # 2 of a PDU session establishment request (6. ⁇ PDU ⁇ Session ⁇ Req). Subsequently, a PDU session is established between the UE and UPF # 2 (PDU ⁇ Session ⁇ establishedwithwithUPF # 2).
  • FIG. 12 is a sequence diagram illustrating an example (2) of PDU session relocation by the O & M trigger according to the embodiment of the present invention.
  • FIG. 11 shows a sequence executed in the architecture # 2 shown in FIG.
  • FIG. 12 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • the sequence shown in FIG. 12 is obtained by deleting “forwarding the instruction to AMF to SMF # 2 (4. @ Nsmf_ServiceRelease)” in the sequence in # 11.
  • the SMF # 1 since the SMF # 1 and the AMF have a direct path, the SMF # 1 does not need to notify the AMF via the SMF # 2, and the relocation directly includes the address of the SMF # 2 in the AMF. Notify the instruction (2. Namf_Communication_N1N2MessageTransfer).
  • FIG. 13 is a sequence diagram illustrating an example (3) of PDU session relocation by the O & M trigger according to the embodiment of the present invention.
  • FIG. 13 is a sequence executed in the architecture # 1 shown in FIG. 7, and shows an operation in SSC mode 3. Further, FIG. 13 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • the sequence shown in FIG. 13 is mainly executed for load distribution.
  • step # 5 (5. ⁇ Namf_Communication_N1N2MessageTransfer) to step # 9 (9. ⁇ PDU ⁇ Session ⁇ Req) in Fig. 9 are executed.
  • FIG. 14 is a sequence diagram illustrating an example (4) of PDU session relocation by the O & M trigger according to the embodiment of the present invention.
  • FIG. 14 is a sequence executed in the architecture # 2 shown in FIG. 7, and shows an operation in SSC mode 3.
  • FIG. 14 shows a sequence executed in an architecture in which different SMFs control different UPFs, as in Case # 1 of FIG.
  • the sequence shown in FIG. 14 is mainly executed for the purpose of load distribution.
  • Step # 6 (6. PDU ⁇ Session ⁇ Modification ⁇ Command) to Step # 9 (9. ⁇ PDU ⁇ Session ⁇ Req) of FIG. 10 are executed.
  • FIG. 15 is a sequence diagram illustrating an example (3) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • FIG. 15 shows a sequence executed in an architecture in which the same SMF controls different UPFs, as in Case # 2 in FIG. 5, and performs relocation of the UPF to the UE group.
  • $ AF determines to change the PDU session to a new DC or DNAI (DN @ Access @ Identifier) in SSC mode 3 (1. @ Creation @ of the @ AF request). Subsequently, the AF notifies the NEF of the SSC mode (2. ⁇ Nnef_TrafficInfluence_Update (e.g. ⁇ SSC ⁇ modes)). Relocation of the UPF is performed in the notified SSC mode. Subsequently, the NEF and the UDR (Unified Data Repository) update the information of the UE group (3a. Updating the information) and respond to the AF (3b. Nnef_TrafficInfluence_UpdateResponse).
  • the UDR instructs the PCF to switch the PDU session (4. @ Nudr_DM_Notify).
  • the PCF instructs the SMF to switch the PDU session (5. @ Npcf_SMPolicyControl_UpdateNotify).
  • the SMF performs the relocation of the UPF in the sequence shown in FIG. 3 or FIG. 6 (6. UPF relocation of SSC3 PDU session).
  • FIG. 16 is a sequence diagram illustrating an example (4) of PDU session relocation by a PCF / AF trigger according to the embodiment of the present invention.
  • FIG. 16 shows a sequence executed in an architecture in which the same SMF controls different UPFs, as in Case # 2 of FIG. 5, and performs the relocation of the UPF for a single UE.
  • the sequence does not go through the UDR, and the NEF receives the instruction (1.1NEF receives Nnef_TraficInfluence_Create / Update / Delete Request from AF) received from the AF.
  • PCF directly (4. ⁇ Npcf_PolicyAuthorization_Create / Update / Delete ⁇ Request).
  • the BSF Biting Support Function
  • the BSF is an NF service having a function of registering or unregistering a consumer of the NF service in the PCF.
  • FIG. 17 is a sequence diagram illustrating an example (5) of PDU session relocation by the O & M trigger according to the embodiment of the present invention.
  • FIG. 17 shows a sequence executed in an architecture in which the same SMF controls different UPFs, as in Case # 2 of FIG. 5, and O & M triggers the relocation of the UPF for load control.
  • the UPF periodically notifies the SMF or the O & M of the load information (1a. @ Load @ info, 1b. @ Load @ info). Subsequently, the O & M instructs the SMF to delete or move the PDU session of the UPF # 1 in the SSC mode 3 (2a. ⁇ Reduce / move ⁇ SSC 3 ⁇ PDU Session from from UPF # 1). Subsequently, the SMF determines to move the PDU session to the UPF # 2 in the SSC mode 3 (2b. ⁇ SMF ⁇ determine). Thereafter, the PDU session is rearranged in the UPF # 2 in the sequence shown in FIG. 3 or FIG.
  • SSC mode 3 is a concept of “make @ before ⁇ break”. That is, when the session moves between IP anchors, the UE session is not interrupted during the lifetime of the PDU session. That is, it is possible to cope with a change in the IP address of the session.
  • the network node can execute the relocation of the PDU session between the UE and the UPF by the SMF determining the relocation and transmitting the relocation instruction to the AMF.
  • the PDU session relocation can be appropriately performed according to the network architecture and the trigger.
  • the network node 10 and the user device 20 include a function for implementing the above-described embodiment. However, each of the network node 10 and the user device 20 may include only some of the functions in the embodiment.
  • FIG. 18 is a diagram illustrating an example of a functional configuration of the network node 10.
  • the network node 10 includes a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140.
  • the functional configuration shown in FIG. 18 is only an example. As long as the operation according to the embodiment of the present invention can be executed, the names of the functional divisions and the functional units may be any. Further, the network node 10 having a plurality of different functions on the system architecture may be constituted by a plurality of network nodes 10 separated for each function.
  • the transmission unit 110 has a function of generating a signal to be transmitted to the user device 20 or another network node 10 and transmitting the signal wirelessly.
  • the receiving unit 120 includes a function of receiving various signals transmitted from the user device 20 and acquiring, for example, information of a higher layer from the received signals.
  • the transmitting unit 110 has a function of transmitting an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL control signal, a DL reference signal, and the like to the user device 20.
  • the setting unit 130 stores in the storage device the setting information set in advance and various setting information to be transmitted to the user device 20, and reads out the setting information from the storage device as needed.
  • the content of the setting information is, for example, information related to session management.
  • the control unit 140 performs the process related to the establishment of the PDU session between the user device 20 and the user plane as described in the embodiment. Further, the control unit 140 performs a process related to the rearrangement of the PDU session between the user device 20 and the user plane.
  • a function unit related to signal transmission in control unit 140 may be included in transmitting unit 110, and a function unit related to signal reception in control unit 140 may be included in receiving unit 120.
  • FIG. 19 is a diagram illustrating an example of a functional configuration of the user device 20.
  • the user device 20 includes a transmission unit 210, a reception unit 220, a setting unit 230, and a control unit 240.
  • the functional configuration shown in FIG. 19 is only an example. As long as the operation according to the embodiment of the present invention can be executed, the names of the functional divisions and the functional units may be any.
  • the transmission unit 210 creates a transmission signal from transmission data, and transmits the transmission signal wirelessly.
  • the receiving unit 220 wirelessly receives various signals and obtains a higher-layer signal from the received physical-layer signal. Further, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, a DL / UL / SL control signal, a reference signal, and the like transmitted from the network node 10.
  • the transmission unit 210 transmits the PSCCH (Physical Sidelink Shared Channel), the PSSCH (Physical Sidelink Shared Channel), the PSDCH (Physical Sidelink Discovery Channel), and the PSBCH (Physical Sidelink Broadcast Channel) to another user device 20 as D2D communication.
  • the receiving unit 220 receives a PSCCH, a PSSCH, a PSDCH, a PSBCH, or the like from another user apparatus 20.
  • the transmission unit 210 and the reception unit 220 have a transmission / reception function of a wireless LAN or a wired LAN.
  • the setting unit 230 stores various setting information received from the network node 10 or the user device 20 by the receiving unit 220 in a storage device, and reads out the setting information from the storage device as needed.
  • the setting unit 230 also stores preset setting information.
  • the content of the setting information is, for example, information related to session management.
  • the control unit 240 performs the process related to the PDU session establishment with the user plane as described in the embodiment. Further, the control unit 240 performs a process related to the rearrangement of the PDU session.
  • a function unit related to signal transmission in control unit 240 may be included in transmission unit 210, and a function unit related to signal reception in control unit 240 may be included in reception unit 220.
  • each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated from each other). , Wired, wireless, etc.), and may be implemented using these multiple devices.
  • the functional block may be realized by combining one device or the plurality of devices with software.
  • Functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deemed, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, but not limited to these I can't.
  • a functional block (configuration unit) that causes transmission to function is called a transmitting unit (transmitting unit) or a transmitter (transmitter).
  • the realization method is not particularly limited.
  • the network node 10, the user device 20, and the like may function as a computer that performs processing of the wireless communication method according to the present disclosure.
  • FIG. 20 is a diagram illustrating an example of a hardware configuration of the network node 10 and the user device 20 according to an embodiment of the present disclosure.
  • the above-described network node 10 and user device 20 are physically configured as computer devices including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. You may.
  • the term “apparatus” can be read as a circuit, a device, a unit, or the like.
  • the hardware configuration of the network node 10 and the user device 20 may be configured to include one or more devices illustrated in the drawing, or may be configured not to include some devices.
  • the functions of the network node 10 and the user device 20 are controlled by reading predetermined software (program) on hardware such as the processor 1001 and the storage device 1002 so that the processor 1001 performs an operation and controls communication by the communication device 1004. And controlling at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.
  • the processor 1001 controls the entire computer by operating an operating system, for example.
  • the processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
  • CPU Central Processing Unit
  • the control unit 140, the control unit 240, and the like described above may be realized by the processor 1001.
  • the processor 1001 reads a program (program code), a software module, data, or the like from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to these.
  • a program program that causes a computer to execute at least a part of the operation described in the above embodiment is used.
  • the control unit 140 of the network node 10 illustrated in FIG. 18 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
  • the control unit 240 of the user device 20 illustrated in FIG. 19 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001.
  • Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via a telecommunication line.
  • the storage device 1002 is a computer-readable recording medium, and includes, for example, at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory). It may be configured.
  • the storage device 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the storage device 1002 can store a program (program code), a software module, and the like that can be executed to execute the communication method according to an embodiment of the present disclosure.
  • the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, Blu -Ray (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, or the like.
  • the auxiliary storage device 1003 may be called an auxiliary storage device.
  • the storage medium described above may be, for example, a database including at least one of the storage device 1002 and the auxiliary storage device 1003, a server, or another appropriate medium.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, for example, in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). May be configured.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • a transmitting / receiving antenna, an amplifier unit, a transmitting / receiving unit, a transmission line interface, and the like may be realized by the communication device 1004.
  • the transmission / reception unit may be physically or logically separated from the transmission unit and the reception unit.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an external input.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, and the like) that performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • the devices such as the processor 1001 and the storage device 1002 are connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.
  • the network node 10 and the user device 20 include a hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the control unit that determines the execution of the relocation of the UPF (User Plane Function), the PDU (Protocol Data Unit) session ID, and the A network node having a transmission unit that transmits a relocation instruction including an address of an SMF (Session Management Function) related to the UPF to the Access and Mobility Management (AMF) via the SMF or directly.
  • UPF User Plane Function
  • PDU Protocol Data Unit
  • AMF Access and Mobility Management
  • the network node can execute the relocation of the PDU session between the UE and the UPF by the SMF determining the relocation and transmitting the relocation instruction to the AMF. That is, PDU session relocation can be appropriately performed according to the network architecture and the trigger.
  • the address of the SMF may be assigned by the SMF.
  • the SMF can notify the AMF of the address of the relocated SMF.
  • a receiving unit that receives an instruction to relocate the UPF from the application function or the maintenance function, and executes the relocation of the UPF based on the received instruction to relocate the UPF.
  • the operation of a plurality of functional units may be physically performed by one component, or the operation of one functional unit may be physically performed by a plurality of components.
  • the order of the processing may be changed as long as there is no contradiction.
  • the software operated by the processor of the network node 10 according to the embodiment of the present invention and the software operated by the processor of the user device 20 according to the embodiment of the present invention are a random access memory (RAM), a flash memory, and a read-only memory, respectively.
  • the data may be stored in a memory (ROM), an EPROM, an EEPROM, a register, a hard disk (HDD), a removable disk, a CD-ROM, a database, a server, or any other suitable storage medium.
  • notification of information is not limited to the aspect / embodiment described in the present disclosure, and may be performed using another method.
  • the notification of information includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, RRC signaling may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof, and RRC signaling may be called an RRC message, for example, RRC message.
  • a connection setup (RRC (Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like may be used.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication
  • FRA Full Radio Access
  • NR new Radio
  • W-CDMA registered trademark
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access 2000
  • UMB Universal Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • Systems using IEEE@802.16 WiMAX®
  • IEEE@802.20 UWB (Ultra-WideBand
  • Bluetooth® and other suitable systems and extensions based thereon. It may be applied to at least one of the next generation systems.
  • a plurality of systems may be combined (for example, a combination of at least one of LTE and LTE-A with 5G) and applied.
  • the specific operation described as being performed by the network node 10 in this specification may be performed by an upper node (upper node) in some cases.
  • various operations performed for communication with the user device 20 are performed by the network node 10 and other network nodes other than the network node 10. It is clear that this can be done by at least one of the following (for example, but not limited to MME or S-GW etc.).
  • MME Mobility Management Entity
  • S-GW Serving GPRS Support Node
  • ⁇ Information, signals, and the like described in the present disclosure can be output from an upper layer (or lower layer) to a lower layer (or upper layer). Input and output may be performed via a plurality of network nodes.
  • the input and output information may be stored in a specific place (for example, a memory) or may be managed using a management table. Information that is input and output can be overwritten, updated, or added. The output information or the like may be deleted. The input information or the like may be transmitted to another device.
  • the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a Boolean value (Boolean: true or false), or may be compared by numerical values (for example, , Comparison with a predetermined value).
  • software, instructions, information, and the like may be transmitted and received via a transmission medium.
  • a transmission medium For example, if the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of
  • At least one of the channel and the symbol may be a signal (signaling).
  • the signal may be a message.
  • a component carrier (CC: Component @ Carrier) may be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented.
  • the radio resource may be indicated by an index.
  • base station (BS: Base @ Station)”, “wireless base station”, “base station device”, “fixed station (fixed @ station)”, “NodeB”, “eNodeB (eNB)”, “gNodeB” (GNB) ",” access point (access @ point) “,” transmission point (transmission @ point) “,” reception point (reception @ point) “,” transmission / reception point (transmission / reception @ point) “,” cell “,” sector “, Terms such as “cell group”, “carrier”, “component carrier” may be used interchangeably.
  • a base station may also be referred to as a macro cell, a small cell, a femto cell, a pico cell, or the like.
  • a base station can accommodate one or more (eg, three) cells. If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH: The communication service can also be provided by Remote @ Radio @ Head.
  • RRH small indoor base station
  • the communication service can also be provided by Remote @ Radio @ Head.
  • Cell or “sector” is a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides the communication service in this coverage. Point to.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • a mobile station can be a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, by one of ordinary skill in the art. It may also be called a terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • at least one of the base station and the mobile station may be a device mounted on the mobile unit, the mobile unit itself, or the like.
  • the moving object may be a vehicle (for example, a car, an airplane, or the like), may be an unmanned moving object (for example, a drone, an autonomous vehicle), or may be a robot (maned or unmanned). ).
  • at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation.
  • at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be replaced with a user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user devices 20 (for example, it may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration described above.
  • the user device 20 may have the function of the network node 10 described above.
  • words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”).
  • an uplink channel, a downlink channel, and the like may be replaced with a side channel.
  • a user terminal in the present disclosure may be replaced by a base station.
  • the configuration may be such that the base station has the function of the user terminal described above.
  • determining may encompass a wide variety of operations.
  • Judgment '', ⁇ decision '' for example, judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigating (investigating), searching (looking up, search, inquiry) (E.g., searching in a table, database, or another data structure), ascertaining may be considered “determined", "determined", and the like.
  • determining” and “deciding” include receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access. (accessing) (for example, accessing data in a memory) may be regarded as “determined” or “determined”.
  • ⁇ judgment '' and ⁇ decision '' means that resolving, selecting, selecting, establishing, establishing, comparing, etc. are regarded as ⁇ judgment '' and ⁇ decided ''. May be included.
  • “judgment” and “decision” may include deeming any operation as “judgment” and “determined”. “Judgment (determination)” may be read as “assuming”, “expecting”, “considering”, or the like.
  • connection means any direct or indirect connection or connection between two or more elements that It may include the presence of one or more intermediate elements between the two elements “connected” or “coupled.”
  • the coupling or connection between the elements may be physical, logical, or a combination thereof.
  • connection may be read as “access”.
  • two elements may be implemented using at least one of one or more wires, cables, and printed electrical connections, and as some non-limiting and non-exhaustive examples, in the radio frequency domain. , Can be considered “connected” or “coupled” to each other using electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
  • the reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot depending on an applied standard.
  • RS Reference Signal
  • references to elements using designations such as “first,” “second,” etc., as used in this disclosure, does not generally limit the quantity or order of those elements. These designations may be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to first and second elements do not mean that only two elements can be employed, or that the first element must precede the second element in some way.
  • a radio frame may be composed of one or more frames in the time domain.
  • One or more each frame in the time domain may be referred to as a subframe.
  • a subframe may be further configured by one or more slots in the time domain.
  • the subframe may be a fixed time length (eg, 1 ms) that does not depend on numerology.
  • Numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology includes, for example, a subcarrier interval (SCS: SubCarrier @ Spacing), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI: Transmission @ Time @ Interval), a number of symbols per TTI, a radio frame configuration, and a transceiver.
  • SCS SubCarrier @ Spacing
  • TTI Transmission @ Time @ Interval
  • TTI Transmission @ Time @ Interval
  • a transceiver At least one of a specific filtering process performed in a frequency domain and a specific windowing process performed by a transceiver in a time domain may be indicated.
  • the slot may be configured with one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
  • a slot may be a time unit based on numerology.
  • the slot may include a plurality of mini slots.
  • Each minislot may be constituted by one or more symbols in the time domain.
  • the mini-slot may be called a sub-slot.
  • a minislot may be made up of a smaller number of symbols than slots.
  • a PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals.
  • the radio frame, the subframe, the slot, the minislot, and the symbol may have different names corresponding to each.
  • one subframe may be called a transmission time interval (TTI: Transmission @ Time @ Interval)
  • TTI Transmission @ Time @ Interval
  • TTI Transmission Time interval
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot is called a TTI.
  • You may. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1 to 13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing the TTI may be called a slot, a minislot, or the like instead of a subframe.
  • the TTI refers to, for example, a minimum time unit of scheduling in wireless communication.
  • the base station performs scheduling for allocating radio resources (frequency bandwidth, transmission power, and the like that can be used in each user device 20) to each user device 20 in TTI units.
  • radio resources frequency bandwidth, transmission power, and the like that can be used in each user device 20
  • TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, a time section (for example, the number of symbols) in which a transport block, a code block, a codeword, and the like are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (mini-slot number) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE@Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, and the like.
  • a TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • a long TTI (for example, a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be replaced with a TTI shorter than the long TTI and 1 ms.
  • the TTI having the above-described TTI length may be replaced with the TTI.
  • the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the numerology, and may be, for example, 12.
  • the number of subcarriers included in the RB may be determined based on numerology.
  • the RB time domain may include one or more symbols, and may be one slot, one minislot, one subframe, or one TTI in length.
  • One TTI, one subframe, and the like may each be configured with one or a plurality of resource blocks.
  • One or a plurality of RBs include a physical resource block (PRB: Physical @ RB), a subcarrier group (SCG: Sub-Carrier @ Group), a resource element group (REG: Resource @ Element @ Group), a PRB pair, an RB pair, and the like. May be called.
  • PRB Physical @ RB
  • SCG Sub-Carrier @ Group
  • REG Resource @ Element @ Group
  • PRB pair an RB pair, and the like. May be called.
  • a resource block may be composed of one or more resource elements (RE: Resource @ Element).
  • RE Resource @ Element
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • a ⁇ bandwidth part (which may also be referred to as a partial bandwidth or the like) may represent a subset of consecutive common RBs (commonsresource ⁇ blocks) for a certain numerology in a certain carrier.
  • the common RB may be specified by an index of the RB based on the common reference point of the carrier.
  • a PRB may be defined by a BWP and numbered within the BWP.
  • $ BWP may include a BWP for UL (UL @ BWP) and a BWP for DL (DL @ BWP).
  • BWP for a UE, one or more BWPs may be configured in one carrier.
  • At least one of the configured BWPs may be active, and the UE does not have to assume to transmit and receive a given signal / channel outside the active BWP.
  • “cell”, “carrier”, and the like in the present disclosure may be replaced with “BWP”.
  • the structures of the above-described radio frames, subframes, slots, minislots, and symbols are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, included in an RB The configuration of the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and the like can be variously changed.
  • the term “A and B are different” may mean that “A and B are different from each other”.
  • the term may mean that “A and B are different from C”.
  • Terms such as “separate”, “coupled” and the like may be interpreted similarly to "different”.
  • Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching with execution.
  • the notification of the predetermined information (for example, the notification of “X”) is not limited to explicitly performed, and is performed implicitly (for example, not performing the notification of the predetermined information). Is also good.
  • UUPF # 2 in the present disclosure is an example of UPF after rearrangement.
  • UPF # 1 is an example of UPF before being rearranged.
  • AF is an example of an application function.
  • O & M is an example of a maintenance function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un nœud de réseau qui comprend : une unité de commande qui détermine s'il faut exécuter une relocalisation d'une fonction de plan d'utilisateur (UPF) ; et une unité de transmission qui transmet, à une gestion d'accès et de mobilité (AMF), une instruction de relocalisation qui comprend un ID de session d'unité de données de protocole (PDU) et l'adresse d'une fonction de gestion de session (SMF) se rapportant à une UPF de post-relocalisation, une telle transmission étant par l'intermédiaire de la SMF ou directe.
PCT/JP2018/035223 2018-09-21 2018-09-21 Nœud de réseau WO2020059149A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880097546.XA CN112690039B (zh) 2018-09-21 2018-09-21 网络节点
PCT/JP2018/035223 WO2020059149A1 (fr) 2018-09-21 2018-09-21 Nœud de réseau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/035223 WO2020059149A1 (fr) 2018-09-21 2018-09-21 Nœud de réseau

Publications (1)

Publication Number Publication Date
WO2020059149A1 true WO2020059149A1 (fr) 2020-03-26

Family

ID=69886845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/035223 WO2020059149A1 (fr) 2018-09-21 2018-09-21 Nœud de réseau

Country Status (2)

Country Link
CN (1) CN112690039B (fr)
WO (1) WO2020059149A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022099484A1 (fr) * 2020-11-10 2022-05-19 华为技术有限公司 Procédé d'envoi d'identifiant et appareil de communication
EP4087295A1 (fr) * 2021-05-05 2022-11-09 NTT DoCoMo, Inc. Agencement de réseau de communication et procédé de fourniture d'un service de communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220369393A1 (en) * 2021-05-12 2022-11-17 Mediatek Inc. Enhanced handling of 5gsm procedure collision

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730142B (zh) * 2009-06-30 2012-09-05 中兴通讯股份有限公司 多分组数据网络连接的建立方法以及装置
EP3557905A4 (fr) * 2016-12-15 2020-08-12 LG Electronics Inc. -1- Procédé de réalisation de transfert intercellulaire dans un système de communication sans fil et appareil associé
JP7064448B2 (ja) * 2017-01-10 2022-05-10 株式会社Ｎｔｔドコモ 移動体通信システム及び輻輳制御方法
CN108366380A (zh) * 2017-01-26 2018-08-03 中兴通讯股份有限公司 一种支持多归属协议数据单元会话的策略控制方法及装置
CN108400997A (zh) * 2017-02-06 2018-08-14 电信科学技术研究院 会话管理方法、终端、管理功能实体及接入网节点
CN108462735B (zh) * 2017-02-21 2020-11-17 华为技术有限公司 一种选择会话管理功能实体的方法和装置
US10779345B2 (en) * 2017-03-20 2020-09-15 Qualcomm Incorporated User plane relocation techniques in wireless communication systems
KR102289879B1 (ko) * 2017-03-20 2021-08-13 삼성전자 주식회사 셀룰러망에서 세션의 다양한 ssc 모드 지원을 위한 upf 변경 방안

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Application-influenced SSC and UP management", 3GPP TSG SA WG2 #119 S 2-171066, 17 February 2017 (2017-02-17), XP051217184 *
HUAWEI ET AL.: "Intermediate SMF/UPF selection and the architecture", 3GPP TSG SA WG2 #122 S 2-174325, 30 June 2017 (2017-06-30), pages 8 - 11 *
HUAWEI ET AL.: "SMF relocation of SSC mode 2 and SSC mode 3 with multiple PDU sessions", 3GPP TSG SA WG2 #122 S 2-175163, 30 June 2017 (2017-06-30), XP051304068 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022099484A1 (fr) * 2020-11-10 2022-05-19 华为技术有限公司 Procédé d'envoi d'identifiant et appareil de communication
EP4087295A1 (fr) * 2021-05-05 2022-11-09 NTT DoCoMo, Inc. Agencement de réseau de communication et procédé de fourniture d'un service de communication
WO2022233463A1 (fr) * 2021-05-05 2022-11-10 Ntt Docomo, Inc. Agencement de réseau de communication et procédé pour fournir un service de communication

Also Published As

Publication number Publication date
CN112690039B (zh) 2023-11-03
CN112690039A (zh) 2021-04-20

Similar Documents

Publication Publication Date Title
EP3681204B1 (fr) Équipement utilisateur, noeud de réseau et système de communication
JP7204403B2 (ja) ネットワークノード
JP7245266B2 (ja) ネットワークノード、ネットワークシステム及び通知方法
WO2020059149A1 (fr) Nœud de réseau
JP7169827B2 (ja) 端末及び通信方法
EP3911022B1 (fr) Noeud de réseau et dispositif utilisateur
WO2021048904A1 (fr) Dispositif de gestion de session, dispositif de plan utilisateur et dispositif de gestion de transfert intercellulaire d'accès
WO2020100379A1 (fr) Dispositif d'utilisateur et dispositif de station de base
JP7313423B2 (ja) 基地局、通信方法、及び無線通信システム
JP7241089B2 (ja) 端末、基地局装置、通信方法、及び無線通信システム
WO2020075721A1 (fr) Dispositif d'utilisateur et dispositif de station de base
WO2021065012A1 (fr) Dispositif de contrôle d'accès et dispositif de plan utilisateur
WO2020217532A1 (fr) Dispositif de gestion de session, dispositif de plan utilisateur, et procédé de communication
WO2020166028A1 (fr) Nœud de réseau
WO2022239242A1 (fr) Station de base, nœud de réseau et procédé de communication sans fil
JP7445673B2 (ja) 端末
WO2023002545A1 (fr) Station de base, système de communications sans fil et procédé de communication
WO2022097290A1 (fr) Terminal et système de communication
WO2020255654A1 (fr) Dispositif de communication et procédé de communication
WO2020255686A1 (fr) Dispositif de station de base, et dispositif de plan utilisateur
WO2021220971A1 (fr) Terminal et procédé de communication
WO2023276010A1 (fr) Terminal et procédé de communication
WO2020255657A1 (fr) Dispositif de communication et procédé de communication
JP7221374B2 (ja) 端末、基地局及び通信方法
WO2022215230A1 (fr) Terminal et procédé de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18934477

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18934477

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP