WO2024040415A1 - Procédé, système et appareil de commande de communication, dispositif de communication et support de stockage - Google Patents

Procédé, système et appareil de commande de communication, dispositif de communication et support de stockage Download PDF

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Publication number
WO2024040415A1
WO2024040415A1 PCT/CN2022/114067 CN2022114067W WO2024040415A1 WO 2024040415 A1 WO2024040415 A1 WO 2024040415A1 CN 2022114067 W CN2022114067 W CN 2022114067W WO 2024040415 A1 WO2024040415 A1 WO 2024040415A1
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WIPO (PCT)
Prior art keywords
feeder link
network device
access
link information
core network
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PCT/CN2022/114067
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English (en)
Chinese (zh)
Inventor
毛玉欣
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/114067 priority Critical patent/WO2024040415A1/fr
Priority to CN202280003241.4A priority patent/CN117918059A/zh
Publication of WO2024040415A1 publication Critical patent/WO2024040415A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular, to a communication control method, system and device, communication equipment and storage medium.
  • the access network is a satellite, ground receiving station and gNB function
  • the satellite may not be able to maintain the connection with the ground station at all times, that is, the feeder link connection, this may cause the feeder link connection to be interrupted, causing UE access anomalies or UE business development anomalies.
  • Embodiments of the present disclosure provide a communication control method, system and device, communication equipment and storage medium.
  • a first aspect of an embodiment of the present disclosure provides a communication control method, which is executed by a first core network device.
  • the method includes:
  • the feeder link information is sent to the UE through the access network device, and the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the second aspect of the embodiment of the present disclosure provides a communication control method, which is executed by a UE.
  • the method includes:
  • the third aspect of the embodiments of the present disclosure provides a communication control method, which is executed by an access network device.
  • the method includes:
  • feeder link information is sent, and the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the fourth aspect of the embodiments of the present disclosure provides a communication system, including: a first core network device, a UE, and an access network device;
  • the first core network device is configured to receive feeder link information sent by the access network device; when the feeder link is about to be interrupted, notify the UE that the feeder link is about to be interrupted, and use the access network device to transmit the feeder link information to the UE.
  • the feeder link information is sent to the UE; the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks;
  • the UE is configured to receive the feeder link information sent by the first core network device through the access network device when the feeder link is about to be interrupted, and determine to continue to stay based on the received feeder link information. Stay on the current network or access other networks;
  • the access network device is configured to send feeder link information to the first core network device when detecting that the feeder link is about to be interrupted.
  • a fifth aspect of the embodiment of the present disclosure provides a communication control device, where the device includes:
  • the receiving unit is used to obtain the feeder link information when the feeder link is about to be interrupted;
  • a sending unit configured to send the feeder link information to the UE, where the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • a sixth aspect of the embodiment of the present disclosure provides a communication control device, where the device includes:
  • a receiving unit used to receive feeder link information when the feeder link is about to be interrupted
  • a processing unit configured to determine whether to continue to stay in the current network or to access other networks according to the feeder link information.
  • a seventh aspect of the embodiment of the present disclosure provides a communication control device, where the device includes:
  • a sending unit configured to send feeder link information when it is detected that the feeder link is about to be interrupted.
  • the feeder link information is used to determine that the UE continues to camp on the current network or access other networks.
  • An eighth aspect of an embodiment of the present disclosure provides a communication device, including a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein when the processor runs the executable program,
  • the communication control method provided by the aforementioned first aspect, second aspect or third aspect.
  • a ninth aspect of the embodiment of the present disclosure provides a computer storage medium that stores an executable program; after the executable program is executed by a processor, it can realize the first aspect, the second aspect or the third aspect.
  • the communication control method provided by the aspect is not limited to the communication control method.
  • the technical solution provided by the embodiment of the present disclosure is to obtain the feeder link information when the feeder link is about to be interrupted; send the feeder link information to the user equipment UE through the access network device; the feeder link information is used to determine The UE continues to camp on the current network or access other networks.
  • the UE can decide whether to continue to stay in the network or access other networks to interrupt communications in the current network in the scenario where the feeder link is interrupted, thereby reducing network
  • the side device controls the UE's communication, causing the UE to be unable to decide whether to continue communicating according to its own needs.
  • the feeder link information can also be used for the UE to decide whether to continue to reside in the current network, thereby improving the flexibility of communication control and reducing the need to use a single method for multiple UEs. Control strategies result in poor communication flexibility.
  • Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • Figure 2 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 3 is a schematic structural diagram of a communication control system according to an exemplary embodiment
  • Figure 4 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 5 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 6 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 7 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 8 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 9 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 10 is a schematic flowchart of a communication control method according to an exemplary embodiment
  • Figure 11 is a schematic structural diagram of a communication control device according to an exemplary embodiment
  • Figure 12 is a schematic structural diagram of a communication control device according to an exemplary embodiment
  • Figure 13 is a schematic structural diagram of a communication control device according to an exemplary embodiment
  • Figure 14 is a schematic structural diagram of a terminal according to an exemplary embodiment
  • Figure 15 is a schematic structural diagram of a communication device according to an exemplary embodiment.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • word “if” as used herein may be interpreted as "when” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology.
  • the wireless communication system may include: several terminals 11 and several access devices 12.
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • Terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • Terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or "cellular" phone) and a device with The computer of the Internet of Things terminal, for example, can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device.
  • station STA
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • mobile station mobile station
  • remote station remote station
  • access terminal remote terminal
  • user terminal user agent, user device, or user equipment (terminal).
  • the terminal 11 may be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, it may be an on-board computer with a wireless communication function, or a wireless communication device connected to an external on-board computer.
  • the terminal 11 may also be a roadside device, for example, it may be a streetlight, a signal light or other roadside device with wireless communication function.
  • the access device 12 may be a network-side device in the wireless communication system.
  • the wireless communication system can be the 4th generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as the Long Term Evolution (LTE) system; or the wireless communication system can also be a 5G system, Also called new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.
  • the access device 12 may be an evolved access device (eNB) used in the 4G system.
  • the access device 12 may also be an access device (gNB) using a centralized distributed architecture in the 5G system.
  • eNB evolved access device
  • gNB access device
  • the access device 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is equipped with a protocol stack including the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control protocol (Radio Link Control, RLC) layer, and the Media Access Control (Media Access Control, MAC) layer; distributed
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Media Access Control
  • the unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present disclosure does not limit the specific implementation of the access device 12.
  • a wireless connection can be established between the access device 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.
  • the above wireless communication system may also include a network management device 13.
  • the network management device 13 may be a core network device in a wireless communication system.
  • the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device can also be other core network devices, such as serving gateway (Serving GateWay, SGW), public data network gateway (Public Data Network GateWay, PGW), policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or Home Subscriber Server (HSS), etc.
  • serving gateway Serving GateWay, SGW
  • public data network gateway Public Data Network GateWay, PGW
  • Policy and Charging Rules Policy and Charging Rules
  • PCRF Policy and Charging Rules
  • HSS Home Subscriber Server
  • an embodiment of the present disclosure provides a communication control method, which is executed by the first core network device, including:
  • S120 Send the feeder link information to the UE through the access network device; the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the access network may include multiple access devices, such as satellites and ground receiving stations equipped with base station (gNodeB, gNB) functions or partial functions.
  • the core network can be connected to the ground receiving station and is used to establish connections with satellites through the ground receiving station.
  • the core network can include multiple core network devices, such as Access and Mobility Management Function (AMF), User Plane Function (UPF), and Session Management Function (SMF). wait.
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • SMF Session Management Function
  • the first core network device may be an AMF.
  • the feeder link can be the connection link between the satellite equipped with gNB function or part of the function and the ground receiving station
  • the service link Service Link
  • the feeder link information may indicate at least one of feeder link status, parameters, status of access network equipment connected to the feeder link, and operating parameters.
  • the feeder link information may be used to determine at least one of the following information: establishment time, establishment duration, interruption time, and interruption duration of the feeder link.
  • the interruption time and/or interruption duration of the feeder link may be determined based on the establishment time and/or establishment duration of the feeder link.
  • the interruption duration of the feeder link may be based on the establishment time and/or establishment time of the feeder link. Determined by the establishment duration and historical outages of the feeder link.
  • the feeder link is about to be interrupted. This may be caused by detecting or receiving a message from the access network device indicating that the feeder link is about to be interrupted. For example, it may be a message sent by the access network device that indicates that the feeder link is about to be interrupted. Broadcast messages for interrupted content, etc.
  • obtaining feeder link information when the feeder link is about to be interrupted may include: receiving feeder link information sent by the access network device when receiving a notification indicating that the feeder link is about to be interrupted.
  • the notification indicating that the feeder link is about to be interrupted may be sent by the access network device to the first core network device when it detects that the feeder link is about to be interrupted.
  • the feeder link information may be carried in a notification indicating that the feeder link is about to be interrupted. For example, when receiving a notification indicating that the feeder link is about to be interrupted, the feeder link information sent by the access network device is obtained in the notification.
  • the feeder link information is used for the UE to decide whether to continue camping on the current network when the feeder link is about to be interrupted.
  • continuing to camp on the current network may include maintaining the Radio Resource Control (RRC) connection between the UE and the access network device, and may also include pairing the access network device, the second core network device, or the third core network device.
  • RRC Radio Resource Control
  • the transmission data associated with the UE is cached.
  • the second core network device may be SMF
  • the third core network device may be UPF.
  • the user may access other networks.
  • accessing other networks may be to initiate a de-registration request to the first core network device of the current network, complete de-registration through the current satellite network, and select other available networks to initiate registration, or access other networks may be to directly Switch to another available network.
  • sending the feeder link information to the UE may include sending the feeder link interruption duration indicated by the feeder link information to the UE, where the feeder link interruption duration is used to determine whether the UE continues to camp on the current network or Connect to other networks.
  • the feeder link interruption duration can be used to determine the UE's current service type to determine whether the UE continues to camp on the current network or access other networks.
  • the service currently performed by the UE is a non-real-time service. For example, if the maximum delay allowed by this service type is greater than the feeder link interruption duration, it can be determined that the UE continues to camp on the current network; the service currently performed by the UE is a real-time service, such as this
  • the service type can determine the UE's choice to access other networks when the feeder link is interrupted.
  • the UE can decide whether to continue to reside in the network or choose to access other networks in the scenario where the feeder link is interrupted, thereby improving the flexibility of communication control and mitigating the Network overhead.
  • obtaining the feeder link information may include querying the feeder link information corresponding to the access network device associated with the UE.
  • the feeder link information may be obtained from the access network equipment, or the feeder link information may be obtained from a ground receiving station or server.
  • obtaining feeder link information may include: receiving feeder link information sent by the access network device.
  • the feeder link information sent by the access network device may be the feeder link information sent separately by the access network device, or may also be the feeder link information sent by the access network device carried in a request or message.
  • an embodiment of the present disclosure provides a communication control method, which is executed by the first core network device, including:
  • S140 Send the feeder link information to the UE through the access network device; the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • connection release request may be used to request the release of the connection between the access network device and the first core network device, for example, to request the release of the N2 connection.
  • the connection release request may be a request issued by the access network device when it detects that the feeder link is about to be interrupted, thereby facilitating the rapid release of the communication connection between the access network device and the core network device when the feeder link is interrupted.
  • connection release request may request to release the UE context saved in the access network device.
  • the access network device may release the UE context, thereby releasing the first core network device and access associated with the UE corresponding to the UE context. N2 connection between network devices.
  • connection release request may carry a reason value, where the reason value may indicate the reason for requesting to release the N2 connection.
  • the connection release request indicates that the feeder link is about to be interrupted, and the cause value carried in the connection release request may indicate that the N2 connection release is triggered by the feeder link interruption.
  • connection release reason value may be a reason identifier that has a mapping relationship with the connection release reason.
  • connection release reason value may include one or more bit values, and different reason value values correspond to different connection release values. reason.
  • the connection release request may carry feeder link information.
  • the carried feeder link information may be associated with a feeder link that is about to be interrupted as indicated by the cause value.
  • the network overhead caused by sending the feeder link information separately to the first core network device can be reduced, and it can also be associated with the connection release request, which helps to quickly determine the feeder link that is about to be interrupted. .
  • an embodiment of the present disclosure provides a communication control method, which is executed by the first core network device, including:
  • S160 Notify the UE that the feeder link is about to be interrupted, and send the feeder link information to the UE through the access network device; the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • notifying the UE that the feeder link is about to be interrupted may include sending a notification message to the UE indicating that the feeder link is about to be interrupted.
  • a notification message indicating that the feeder link is about to be interrupted may be sent to the UE through a UE configuration update (UE configuration Update, UCU) program or a UE parameter update (UE Parameter Update, UPU) program.
  • notifying the UE that the feeder link is about to be interrupted may include:
  • a notification message is generated according to the UCU program or UPU program; the notification message is used to indicate that the feeder link is about to be interrupted;
  • the feeder link information may be carried in a notification message and sent to the UE, or may be sent to the UE separately from the notification message.
  • the feeder link information may be carried in the notification message and bound to the identification information of the feeder link that is about to be interrupted indicated by the notification message.
  • the notification message may carry an event identifier, where the event identifier may indicate that the currently occurring event is that the feeder link is about to be interrupted.
  • the event identifier may be a flag composed of one or more bits, etc.
  • Event identifiers can have a binding relationship with events, and different event identifiers indicate different events.
  • the UE can quickly learn about the current feeder link interruption event, which can improve the efficiency of the UE's decision whether to continue to stay in the current network and the network-side device's execution of control operations.
  • an embodiment of the present disclosure provides a communication control method, which is executed by the first core network device, including:
  • S161 Notify the UE that the feeder link is about to be interrupted, and send the feeder link information to the UE; the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • S171 Receive the confirmation message sent by the UE through the access network device
  • S181 Send a first connection release instruction to the access network device;
  • the first connection release instruction is used to instruct to maintain the RRC connection between the access network device and the UE, and the confirmation message carries indication information indicating that the UE determines to continue to camp on the current network;
  • S191 Notify the second core network device and/or the third core network device to start the caching function of downlink data associated with the UE.
  • the confirmation message sent by the UE may be a confirmation message sent by the UE in response to the notification message sent by the first core network device to indicate that the UE successfully received the notification message.
  • the first core network device sends a notification message through the UCU program or UPU program, it can also receive the confirmation message returned by the UE through the UCU program or UPU program.
  • the first core network device when it receives the indication information carried in the confirmation message, it may determine that the UE chooses to continue to camp on the current network.
  • the indication information may be information such as an instruction indicating that the UE determines to continue camping on the current network. At this time, control operations related to the UE continuing to camp on the current network can be performed.
  • the feeder link information may be feeder link information sent by the receiving access network device through a connection release request.
  • a first connection release instruction may be sent to the access network device.
  • the first connection release instruction may be used to instruct the access network device to release the connection with the first core network device. N2 connection between the access network equipment and the UE, and maintain the RRC connection between the access network equipment and the UE.
  • the access network device can still cache the uplink transmission data associated with the UE, so the RRC connection still needs to be maintained to maintain the data between the access network device and the UE. communication capabilities. Instructing the access network device to release the N2 connection may instruct the access network device to release the UE context, etc.
  • the first connection release instruction may also be used to instruct to release the N3 connection between the access network device and the third core network device, such as UPF.
  • activating the caching function for the downlink data associated with the UE may include caching the downlink data associated with the UE to be transmitted when the feeder link is interrupted.
  • core network equipment such as UPF receives the downlink data associated with the UE, caches the downlink data, and sends the cached downlink data to the UE through the access network after the feeder link is restored.
  • the downlink data associated with the UE may be data sent by the network to the UE.
  • the caching function of downlink data associated with the UE may be performed by SMF and/or UPF.
  • the method may further include:
  • the confirmation message does not carry indication information indicating that the UE determines to continue to camp on the current network
  • the second connection release instruction is also used to instruct to release the RRC connection between the access network device and the UE;
  • the confirmation message does not carry indication information. For example, it is only used to indicate that the UE has successfully received the notification message, indicating that the UE does not continue to camp on the current network. For example, it indicates that the UE needs to perform de-registration and choose to access other available networks, or needs to switch to other available networks.
  • the first core network device upon receiving a de-registration request from the UE, processes the received de-registration request, for example, performs de-registration on the UE based on the de-registration request, wherein performing de-registration may be to release the first core network device.
  • the second connection release instruction sent to the access network device instructs the access network device to release the N2 connection and release the RRC connection between the access network device and the UE.
  • the access network device since the UE no longer resides in the current network, after the feeder link is interrupted, the access network device does not need to cache and forward the transmission data associated with the UE, so there is no need to continue to maintain the RRC connection, and thus the RRC connection can be instructed to be released. Instructing the access network device to release the N2 connection may instruct the access network device to release the saved UE context, etc.
  • the second connection release instruction may also be used to instruct to release the N3 connection between the access network device and the third core network device, such as UPF.
  • releasing the connection with the second core network device and notifying the second core network device and the third core network device to release the connection between the second core network device and the third core network device may include: releasing The connection between the first core network device and the second core network device, such as releasing the connection between the AMF and the SMF, and notifying the second core network device and the third core network device to release the connection between the second core network device and the third core network device connection, for example, notify SMF and UPF to release the N4 connection between SMF and UPF.
  • the first core network device is the access and mobility management function AMF; the second core network device is the session management function SMF; and the third core network device is the user plane function UPF.
  • an embodiment of the present disclosure provides a communication control method, which is executed by a UE.
  • the method includes:
  • S210 Receive feeder link information when the feeder link is about to be interrupted
  • S220 Determine whether to continue to stay in the current network or access other networks according to the feeder link information.
  • the feeder link information may indicate at least one of feeder link status, parameters, status of access network equipment connected to the feeder link, operating parameters, and the like.
  • the feeder link information may be used to determine at least one of the following information: establishment time, establishment duration, interruption time, and interruption duration of the feeder link.
  • the feeder link information may be the feeder link information sent by the first core network device received by the access network device, for example, the feeder link information carried by the notification message sent by the first core network device received by the access network device. road information.
  • the notification message can be used to indicate that the feeder link is about to be interrupted.
  • the interruption time and/or interruption duration of the feeder link may be determined based on the establishment time and/or establishment duration of the feeder link.
  • the interruption duration of the feeder link may be based on the establishment time and/or establishment time of the feeder link. Determined by the establishment duration and historical outages of the feeder link.
  • the feeder link is about to be interrupted, which can be caused by detecting or receiving a notification message sent by the first core network device indicating that the feeder link is about to be interrupted.
  • the notification message can be sent through a UCU program or a UPU program. Notification messages, etc.
  • the feeder link information may be carried in a notification indicating that the feeder link is about to be interrupted. For example, when receiving a notification message indicating that the feeder link is about to be interrupted, the feeder link information sent by the access network device is obtained in the notification message.
  • the feeder link information is used for the UE to decide whether to continue camping on the current network when the feeder link is about to be interrupted.
  • continuing to camp on the current network may include maintaining the RRC connection between the UE and the access network device, and may also include the access network device, the second core network device, or the third core network device caching the transmission data associated with the UE.
  • the second core network device may be SMF
  • the third core network device may be UPF.
  • accessing other networks may be to initiate a de-registration request to the first core network device corresponding to the current network, complete de-registration through the current satellite access network, and select other available networks to initiate registration, or, You can also switch to other available networks.
  • the UE by receiving the feeder link information, it can be decided whether the UE will continue to reside in the network or choose to access other available networks in the scenario where the feeder link is interrupted, thereby improving the flexibility of communication control and reducing network overhead.
  • determining to continue to stay in the current network or access other networks based on the feeder link information includes:
  • the interruption duration and the current service type of the UE it is determined whether the UE continues to camp on the current network or accesses other networks.
  • the feeder link interruption duration may be indicated by the feeder link information sent by the first core network device, or may be directly sent by the first core network device.
  • determining whether the UE will continue to camp on the current network or access other networks is based on the duration of the interruption and the current service type of the UE. into other networks.
  • the service currently performed by the UE is a non-real-time service, it can be determined that the UE will continue to camp on the current network; if the service currently performed by the UE is a real-time service, it can be determined that the UE chooses to access other networks, etc.
  • the maximum delay allowed by the UE's current service type is greater than the first threshold, and the feeder link interruption duration is less than the maximum delay, it can be determined that the UE continues to camp on the current network; the maximum delay allowed by the UE's current service type is less than or equal to the first threshold, and/or the feeder link interruption duration is greater than or equal to the second threshold, it can be determined that the UE chooses to access other networks, etc.
  • the second threshold is greater than the first threshold.
  • determining that the UE continues to camp on the current network or accesses other networks based on the interruption duration and the UE's current service type may include: determining that the UE continues to camp on the current network based on the interruption duration, the UE's current service type, and the UE type. Or connect to other networks.
  • the method may further include:
  • a confirmation message carrying indication information indicating that the UE determines to continue to camp on the current network is returned.
  • the confirmation message returned by the UE may be a confirmation message returned by the UE in response to the notification message sent by the first core network device, indicating that the UE successfully received the notification message.
  • the first core network device sends a notification message through the UCU program or UPU program, it can also receive the confirmation message returned by the UE through the UCU program or UPU program.
  • the returned confirmation message may carry indication information, where the indication information may be information such as an instruction indicating that the UE determines to continue to camp on the current network. At this time, it can be used to instruct the first core network device to perform control operations related to the UE continuing to camp on the current network.
  • the method may further include:
  • the access network device When it is determined that the UE chooses to access other networks, the access network device returns a confirmation message and sends a deregistration request to the first core network device;
  • the returned confirmation message may not carry indication information.
  • the confirmation message is only used to indicate that the UE successfully received the notification message.
  • the returned confirmation message may carry indication information indicating access to other networks. For example, it can indicate that the UE chooses to access other networks, etc. At this time, it can be used to instruct the first core network device to perform control operations related to the UE selecting to access other networks.
  • the method may further include:
  • switching to a wireless access network and a core network that support UE access that are different from the current access network may be to send the UE context information to other wireless access networks and core networks that are different from the current network, and switch to other wireless access networks and core networks that support UE access.
  • the connection between access network and core network may be to send the UE context information to other wireless access networks and core networks that are different from the current network, and switch to other wireless access networks and core networks that support UE access.
  • the feeder link information received by the UE may also be feeder link information sent by the access network device through a broadcast message, or may be a feeder link interruption event notified by the access network device through a broadcast message. Indicated feeder link information.
  • an embodiment of the present disclosure provides a communication control method, which is executed by an access network device.
  • the method includes:
  • feeder link information is sent.
  • the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the access network device may detect the status of the feeder link, for example, determine whether the feeder link is about to be interrupted based on the status information of the feeder link.
  • the feeder link information is sent, for example, through an N2 connection release request carrying the feeder link information and sent to the first core network device.
  • the access network device may send the feeder link information to the UE through a broadcast message.
  • the broadcast message may be used to notify the feeder link interruption event of carrying the feeder link information.
  • the feeder link information may indicate at least one of feeder link status, parameters, status of access network equipment connected to the feeder link, and operating parameters.
  • the feeder link information may be used to determine at least one of the following information: establishment time, establishment duration, interruption time, and interruption duration of the feeder link.
  • the interruption time and/or interruption duration of the feeder link may be determined based on the establishment time and/or establishment duration of the feeder link.
  • the interruption duration of the feeder link may be based on the establishment time and/or establishment time of the feeder link. Determined by the establishment duration and historical outages of the feeder link.
  • sending the feeder link information to the first core network device may include:
  • Methods may also include:
  • the first connection release instruction When receiving the first connection release instruction sent by the first core network device, release the N2 connection with the first core network device and maintain the RRC connection with the UE; the first connection release instruction is for the first core network device to An instruction sent when the UE determines to continue to camp on the current network.
  • the method may further include:
  • the buffered upstream data is sent.
  • the access network device when the feeder link is interrupted, can cache the uplink data associated with the UE. For example, for the uplink data transmitted by the UE, the access network device can cache the uplink data when the feeder link is interrupted. data. When the feeder link regains connectivity, the upstream data buffered during the outage is resent.
  • the method may further include: when the feeder link has not restored connection after the feeder link interruption duration indicated by the feeder link information from the start time of the feeder link interruption, discarding the cached UE-associated uplink data.
  • the method may further include:
  • the second connection release instruction When receiving the second connection release instruction sent by the first core network device, release the N2 connection with the first core network device and release the RRC connection with the UE; the second connection release instruction is for the first core network device to Instructions sent when the UE determines to access other networks.
  • Embodiments of the present disclosure provide a UE access processing method in a feeder link discontinuous connection state, which may include:
  • the network device notifies the UE of the feeder link interruption event through a notification message.
  • the notification message may also include: feeder link interruption duration.
  • the network device may be an access network device, and the access network device may notify the interruption event through a broadcast message or the like.
  • the network device may also be a first core network device (such as an AMF), and the first core network device receives a notification of feeder link interruption from the access network device, which may also include feeder link information, for example.
  • the first core network device notifies the UE of the feeder link interruption through the UCU or UPU program.
  • the UE decides to continue to camp on the current network, or to register from the current access network, select and access other available networks.
  • the UE's decision process may also be based on information such as terminal type and/or service type (eg, delay tolerance).
  • information such as terminal type and/or service type (eg, delay tolerance).
  • the UE will carry out services normally.
  • the network side device (at least one of gNB, SMF and UPF) caches the service transmission data associated with the UE; when the connection is restored, it will be sent Cache data.
  • the access network equipment detects that the feeder link between the satellite and the ground station is about to be interrupted.
  • the access network device initiates an N2 connection release request, indicating in the request that the feeder link is about to be interrupted, and at the same time sends the feeder link information or the connection interruption duration to the first core network device.
  • the first core network device initiates a UCU procedure to the UE, notifies the UE that the feeder link is about to be interrupted, and sends the interruption duration to the UE.
  • the UE decides to continue to stay in the current network based on the feeder link interruption notification, the interruption duration, and the delay requirements of the services carried out by the UE.
  • the UE indicates that the UE will still camp on the current network during the interruption of the feeder link.
  • the first core network device returns the N2 connection release command to the access network device.
  • the returned N2 connection release instruction includes instruction information to retain the RRC connection.
  • the access network device receives the N2 connection release command and does not initiate the RRC connection release if it carries instruction information to retain the RRC connection.
  • the access network device releases the N2 and N3 connections, and returns an N2 connection release completion message to the first core network device.
  • the first core network device notifies SMF and/or UPF to cache downlink data.
  • the access network device caches the uplink data; when the SMF and/or UPF receives the UE's downlink data, it caches the downlink data.
  • the access network device sends buffered uplink data, and SMF and/or UPF sends buffered downlink data.
  • the access network equipment detects that the feeder link between the satellite and the ground station is about to be interrupted.
  • the access network device initiates an N2 connection release request, indicating in the request that the feeder link is about to be interrupted, and at the same time sends the feeder link information or the connection interruption duration to the first core network device.
  • the first core network device initiates a UCU procedure to the UE, notifies the UE that the feeder link is about to be interrupted, and sends the interruption duration to the UE.
  • the UE decides whether to access other networks based on the notification of feeder link interruption, the duration of the interruption, and the delay requirements of the services carried out by the UE. If the service carried out by the UE has high latency requirements, it can choose to register from the current network when the feeder link is interrupted, choose to access other available networks and initiate registration.
  • the UE sends a UCU return confirmation message.
  • the UE initiates a de-registration request.
  • the first core network device When the first core network device receives the UE de-registration request, it processes the de-registration request and sends an N2 connection release instruction to the access network device.
  • the access network device initiates the RRC connection release process.
  • the access network device releases the N2 and N3 connections, and returns an N2 connection release completion message to the first core network device.
  • the UE selects other available networks and completes the access registration process.
  • Embodiments of the present disclosure provide a communication system, including: a first core network device, a UE, and an access network device;
  • the first core network device is used to receive the feeder link information sent by the access network device; when the feeder link is about to be interrupted, notify the UE that the feeder link is about to be interrupted, and send the feeder link information to the UE through the access network device ;
  • the feeder link information is used to determine whether the UE will continue to camp on the current network or access other networks;
  • the UE is configured to receive the feeder link information sent by the first core network device through the access network device when the feeder link is about to be interrupted, and determine to continue to reside in the current network or access other networks based on the received feeder link information. ;
  • Access network equipment is used to send feeder link information when it detects that the feeder link is about to be interrupted.
  • the first core network device is configured to receive feeder link information sent by the access network device through a connection release request; the connection release request is used to indicate that the feeder link is about to be interrupted.
  • the first core network device is configured to generate a notification message according to the UCU program or UPU program; the notification message is used to indicate that the feeder link is about to be interrupted; and the notification message is sent to the UE through the access network device.
  • the first core network device is also configured to receive a confirmation message sent by the UE through the access network device; send a first connection release instruction to the access network device; and the first connection release instruction is used to indicate maintaining access.
  • the confirmation message carries indication information indicating that the UE determines to continue to camp on the current network; it notifies the second core network device and/or the third core network device to start the caching function of the downlink data associated with the UE.
  • the first core network device is also configured to receive a confirmation message sent by the UE through the access network device; perform de-registration on the UE based on the received de-registration request of the UE; the confirmation message does not carry an indication that the UE determines Continue to stay in the current network instruction information; send a second connection release instruction to the access network device; the second connection release instruction is also used to instruct to release the RRC connection between the access network device and the UE; release the RRC connection with the second core network device connection, and notifying the second core network device and the third core network device to release the connection between the second core network device and the third core network device.
  • the first core network device is the access and mobility management function AMF
  • the second core network device is the session management function SMF
  • the third core network device is the user plane function UPF.
  • the UE is configured to obtain the feeder link interruption duration indicated by the feeder link information when receiving the feeder link information sent by the first core network device through the access network device; according to the interruption duration and the UE's current business Type, determines whether the UE will continue to camp on the current network or access other networks.
  • the UE is configured to receive a notification message sent by the first core network device through the access network device; the notification message is used to indicate that the feeder link is about to be interrupted; when it is determined that the UE continues to camp on the current network, The device returns a confirmation message carrying indication information indicating that the UE determines to continue camping on the current network.
  • the UE is configured to receive a notification message sent by the first core network device through the access network device; the notification message is used to indicate that the feeder link is about to be interrupted; when it is determined that the UE accesses other networks, Return a confirmation message and send a de-registration request to the first core network device; when de-registration is completed, select other wireless access networks and core networks that support UE access and initiate registration.
  • the UE is configured to receive a notification message sent by the first core network device through the access network device; the notification message is used to indicate that the feeder link is about to be interrupted; when it is determined that the UE accesses other networks, initiate a notification to other supporting UEs. Switching between the accessed wireless access network and core network.
  • the UE is configured to receive feeder link information sent by the access network device through a broadcast message.
  • the access network device is configured to send feeder link information to the first core network device through a connection release request; upon receiving the first connection release instruction sent by the first core network device, release the connection with the first core network device.
  • the first connection release instruction is an instruction sent by the first core network device when the UE determines to continue to reside in the current network.
  • the access network device is also configured to: cache the uplink data associated with the UE when the feeder link is interrupted; and send the cached uplink data when the feeder link is restored.
  • the access network device is further configured to: when receiving the second connection release instruction sent by the first core network device, release the connection with the first core network device and release the RRC connection with the UE. ;
  • the second connection release instruction is an instruction sent by the first core network device when the UE determines to access other networks.
  • the access network device is configured to send feeder link information to the UE through broadcast messages.
  • an embodiment of the present disclosure provides a communication control device, including:
  • the receiving unit 110 is used to obtain feeder link information when the feeder link is about to be interrupted;
  • the sending unit 120 is used to send the feeder link information to the UE, and the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the receiving unit 110 is used to:
  • the receiving unit 110 is used to:
  • connection release request is used to indicate that the feeder link is about to be interrupted.
  • the sending unit 120 is also used to:
  • the sending unit 120 is used for:
  • the sending unit 120 is also used to:
  • the first connection release instruction is also used to instruct to maintain the radio resource control RRC connection between the access network device and the UE, and the confirmation message carries instruction information indicating that the UE determines to continue to camp on the current network. ;
  • the sending unit 120 is also used to:
  • the confirmation message does not carry indication information indicating that the UE determines to continue to camp on the current network
  • the second connection release instruction is also used to instruct to release the RRC connection between the access network device and the UE;
  • the first core network device is the access and mobility management function AMF
  • the second core network device is the session management function SMF
  • the third core network device is the user plane function UPF.
  • an embodiment of the present disclosure provides a communication control device, including:
  • the receiving unit 210 is configured to receive feeder link information when the feeder link is about to be interrupted;
  • the processing unit 220 is configured to determine whether to continue to stay in the current network or to access other networks according to the feeder link information.
  • processing unit 220 is used to:
  • the interruption duration and the current service type of the UE it is determined whether the UE continues to camp on the current network or accesses other networks.
  • processing unit 220 is also used to:
  • the access network device When it is determined that the UE continues to camp on the current network, the access network device returns a confirmation message carrying indication information indicating that the UE determines to continue to camp on the current network.
  • processing unit 220 is also used to:
  • the access network device When it is determined that the UE accesses other networks, the access network device returns a confirmation message and sends a deregistration request to the first core network device;
  • processing unit 220 is also used to:
  • the receiving unit 210 is used to:
  • an embodiment of the present disclosure provides a communication control device, including:
  • the sending unit 310 is configured to send feeder link information when it is detected that the feeder link is about to be interrupted.
  • the feeder link information is used to determine whether the UE continues to camp on the current network or access other networks.
  • the sending unit 310 is used for:
  • the first connection release instruction When receiving the first connection release instruction sent by the first core network device, release the connection with the first core network device and maintain the RRC connection with the UE; the first connection release instruction is for the first core network device to Determines the command sent when continuing to reside on the current network.
  • the sending unit 310 is also used to:
  • the buffered upstream data is sent.
  • the sending unit 310 is also used to:
  • the second connection release instruction When receiving the second connection release instruction sent by the first core network device, release the connection with the first core network device and release the RRC connection with the UE; the second connection release instruction is for the first core network device to Determine the commands sent when connecting to other networks.
  • the sending unit 310 is used for:
  • Feeder link information is sent to the UE through broadcast messages.
  • An embodiment of the present disclosure provides a communication device, including:
  • Memory used to store instructions executable by the processor
  • the processor is configured to execute the communication control method provided by any of the foregoing technical solutions.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information stored thereon after the communication device is powered off.
  • the communication device includes: a terminal or a network element, and the network element may be any one of the aforementioned first to fourth network elements.
  • the processor may be connected to the memory through a bus, etc., and be used to read the executable program stored in the memory, for example, at least one of the methods shown in FIG. 2, FIG. 4 to FIG. 10.
  • Figure 14 is a block diagram of a terminal 800 according to an exemplary embodiment.
  • the terminal 800 may be a mobile phone, a computer, a digital broadcast user device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.
  • the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communications component 816.
  • Processing component 802 generally controls the overall operations of terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to generate all or part of the steps of the methods described above.
  • processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components.
  • processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operations at terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 804 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Power supply component 806 provides power to various components of terminal 800.
  • Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.
  • Multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action.
  • multimedia component 808 includes a front-facing camera and/or a rear-facing camera.
  • the front camera and/or the rear camera may receive external multimedia data.
  • Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.
  • Audio component 810 is configured to output and/or input audio signals.
  • audio component 810 includes a microphone (MIC) configured to receive external audio signals when terminal 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or sent via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.
  • Sensor component 814 includes one or more sensors that provide various aspects of status assessment for terminal 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the terminal 800, and the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800. , the presence or absence of user contact with the terminal 800 , the orientation or acceleration/deceleration of the terminal 800 and the temperature change of the terminal 800 .
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices.
  • the terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communications component 816 also includes a near field communications (NFC) module to facilitate short-range communications.
  • NFC near field communications
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the terminal 800 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the above method.
  • a non-transitory computer-readable storage medium including instructions such as a memory 804 including instructions, executable by the processor 820 of the terminal 800 to generate the above method is also provided.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • an embodiment of the present disclosure shows the structure of a communication device 900.
  • the communication device 900 may be provided as a network side device.
  • the communication device 900 may be the aforementioned base station.
  • communications device 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions, such as application programs, executable by processing component 922.
  • the application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to perform any method performed by the above-mentioned method on the base station, for example, at least one of the methods shown in FIG. 2, FIG. 4 to FIG. 10.
  • Communication device 900 may also include a power supply component 926 configured to perform power management of communication device 900, a wired or wireless network interface 950 configured to connect communication device 900 to a network, and an input-output (I/O) interface 958 .
  • the communication device 900 may operate based on an operating system stored in the memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Les modes de réalisation de la présente divulgation concernent un procédé, un système et un appareil de communication, un dispositif de communication et un support de stockage. Le procédé de commande de communication est exécuté par un premier dispositif de réseau central, et consiste à : lorsqu'une liaison d'alimentation est déconnectée, acquérir des informations de liaison d'alimentation (S110) ; et envoyer les informations de liaison d'alimentation à un équipement utilisateur (UE) au moyen d'un dispositif de réseau d'accès, les informations de liaison d'alimentation étant utilisées pour déterminer si l'UE doit continuer à résider dans le réseau actuel ou accéder à un autre réseau (S120).
PCT/CN2022/114067 2022-08-22 2022-08-22 Procédé, système et appareil de commande de communication, dispositif de communication et support de stockage WO2024040415A1 (fr)

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PCT/CN2022/114067 WO2024040415A1 (fr) 2022-08-22 2022-08-22 Procédé, système et appareil de commande de communication, dispositif de communication et support de stockage
CN202280003241.4A CN117918059A (zh) 2022-08-22 2022-08-22 通信控制方法、系统及装置、通信设备及存储介质

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