WO2019157712A1 - Procédé de communication, dispositif de réseau et dispositif terminal - Google Patents

Procédé de communication, dispositif de réseau et dispositif terminal Download PDF

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Publication number
WO2019157712A1
WO2019157712A1 PCT/CN2018/076845 CN2018076845W WO2019157712A1 WO 2019157712 A1 WO2019157712 A1 WO 2019157712A1 CN 2018076845 W CN2018076845 W CN 2018076845W WO 2019157712 A1 WO2019157712 A1 WO 2019157712A1
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WO
WIPO (PCT)
Prior art keywords
terminal device
key
network node
update
indication information
Prior art date
Application number
PCT/CN2018/076845
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English (en)
Chinese (zh)
Inventor
唐海
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201880076316.5A priority Critical patent/CN111406381B/zh
Priority to PCT/CN2018/076845 priority patent/WO2019157712A1/fr
Publication of WO2019157712A1 publication Critical patent/WO2019157712A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a communication method, a network device, and a terminal device.
  • a new Radio Resource Control (RRC) state that is, an inactive state (RRC_INACTIVE)
  • RRC_INACTIVE an inactive state
  • the network may configure a paging area for paging of a Radio Access Network (RAN), that is, a RAN paging area, and when the terminal device moves within the RAN paging area, it is not necessary to notify the network side.
  • RAN Radio Access Network
  • the network node for maintaining the connection between the terminal device and the RAN and the core network (Core Network, CN) is triggered in the RAN paging area.
  • the paging message is sent to the terminal device in all the cells, so that the terminal device in the RRC_INACTIVE state resumes the RRC connection and performs data reception.
  • the terminal device enters the RRC connected state from the RRC_INACTIVE state, and may be based on the following trigger conditions:
  • the downlink data of the terminal device arrives;
  • the terminal device initiates an update of the RAN location area
  • the terminal device has the requirement to send uplink data.
  • the embodiment of the present application provides a communication method, a network device, and a terminal device, which can reduce signaling overhead of the network device.
  • a communication method comprising:
  • the first network node receives the radio resource control RRC connection recovery request sent by the terminal device in the inactive state, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device, where The first network node is a network node currently serving the terminal device;
  • the first network node determines, according to the indication information, whether to update a key of the terminal device.
  • the first network node may determine whether to update the key of the terminal device according to the indication information of the terminal device, so that the key is not updated without updating the key. It is beneficial to reduce the signaling overhead of network devices.
  • the first network node is an anchor network node of the terminal device.
  • the first network node determines, according to the indication information, whether to update a key of the terminal device, including:
  • the first network node determines to update a key of the terminal device
  • the first network node determines whether to update the key of the terminal device according to the current service situation.
  • the first network node may also determine whether to update the AS key according to whether the anchor network node of the terminal device changes, for example, the first network node may determine that the anchor network node of the terminal device changes.
  • the AS key of the terminal device is determined to be updated, so that the reliability of the data transmission can be ensured. If the anchor network node of the terminal device is not changed, it is determined that the AS key of the terminal device is not updated, thereby reducing the network. Signaling overhead of the device.
  • the determining, by the first network node, whether to update the key of the terminal device according to the current service situation includes:
  • the first network node determines whether to update the key of the terminal device according to whether there is currently service data to be transmitted.
  • the first network node determines whether to update the key of the terminal device according to whether the service data is currently to be transmitted, including:
  • the first network node determines to update a key of the terminal device
  • the first network node determines not to update the key of the terminal device.
  • the context information of the terminal device is not saved on the first network node, and the method further includes:
  • the first network node forwards the indication information to an anchor network node of the terminal device, so that the anchor network node of the terminal device determines whether to update the key of the terminal device according to the indication information.
  • a communication method including:
  • the terminal device in the inactive state determines whether to update the key of the terminal device
  • the RRC connection recovery request is sent by the terminal device to the first network node, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device, where the The first network node is a network node currently serving the terminal device.
  • the terminal device in the inactive state determines whether to update the key of the terminal device, including:
  • the terminal device determines not to update the key of the terminal device.
  • the terminal device may determine whether to update the AS key according to the trigger event of the RRC connection recovery. For example, when the trigger event of the RRC connection recovery is the RAN location area update, the terminal device may determine not to update the AS key. Therefore, the signaling overhead of the network device can be reduced; if the trigger event is downlink data arrival or uplink data is to be transmitted, in this case, the terminal device can determine to update the AS key of the terminal device, thereby enabling data transmission. Reliability.
  • a network device configured to perform the method of any of the first aspect or the first aspect of the first aspect.
  • the apparatus comprises means configured to perform the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is configured to store instructions configured to execute the memory stored instructions configured to perform the method of any of the first aspect or the first aspect of the first aspect.
  • a network device configured to perform the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the apparatus comprises means configured to perform the method of any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is configured to store instructions configured to execute the memory stored instructions configured to perform the method of any of the possible implementations of the second aspect or the second aspect above.
  • a computer storage medium configured to store computer software instructions for performing the method of any of the first aspect or any of the possible implementations of the first aspect, comprising program.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the above-described first aspect or any of the alternative implementations of the first aspect.
  • a computer storage medium configured to store computer software instructions for performing the method of any of the second aspect or the second aspect of the second aspect, comprising program.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the alternative aspects of the second aspect or the second aspect.
  • FIG. 1 is a schematic diagram of a communication system in accordance with an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 4 is a schematic diagram of a network device in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a network device according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a terminal device according to another embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UPD Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 100 can be a device that communicates with a terminal device.
  • Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • FIG. 2 is a schematic flowchart of a communication 200 provided by an embodiment of the present application.
  • the method 200 may be performed by a network device in the communication system 100 shown in FIG. 1. As shown in FIG. 2, the method 200 may include the following content:
  • the first network node receives a radio resource control RRC connection recovery request sent by the terminal device in an inactive state, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device.
  • the first network node is a network node currently serving the terminal device;
  • the first network node determines, according to the indication information, whether to update a key of the terminal device.
  • the first network node is a network node that is currently serving the terminal device, and optionally, the first network node may be an anchor network node of the terminal device, or may not be the same.
  • An anchor network node of the terminal device if the terminal device does not move to an area other than the RAN paging area of the terminal device, the anchor network node of the terminal device does not change, that is, the network node currently serving the terminal device The same as the network node serving the terminal device (denoted as case 1), or if the terminal device moves to an area other than the RAN paging area of the terminal device, in this case, the terminal is currently
  • the network node of the device service and the anchor network node of the terminal device are different network nodes (refer to Case 2).
  • the RAN paging area may be pre-configured by the operator in each network device, or may be determined by the anchor network node according to the characteristics of the displacement of the terminal device.
  • the determination of the RAN paging area in the present application is not particularly limited.
  • the terminal device is in an inactive state, and the terminal device may initiate an RRC connection recovery request for restoring the RRC connection between the terminal device and the network, in some specific triggering events, as described above.
  • an access network (Access Stratum, AS) key of the terminal device is saved on the anchor network node of the terminal device, where the AS key is used for data transmission at the AS layer between the terminal device and the network device.
  • AS Access Stratum
  • Encryption protection when the terminal device switches from the inactive state to the RRC connected state, the key needs to be updated, but if the trigger event of the terminal device RRC connection recovery is the RAN area location update, in this case, if the AS key is updated, It will increase the signaling overhead of the network device.
  • the terminal device may determine whether to update the AS key according to the trigger event of the RRC connection recovery, for example, when the trigger event of the RRC connection recovery is the RAN location area update, the terminal device It can be determined that the AS key is not updated, so that the signaling overhead of the network device can be reduced; if the trigger event is downlink data arrival or uplink data is to be transmitted, in this case, the terminal device can determine to update the AS secret of the terminal device.
  • the key enables the reliability of data transmission.
  • Case 1 The network node currently serving the terminal device and the network node currently serving the terminal device are the same network node.
  • the terminal device may send an RRC connection recovery request to the first network node, where the RRC connection recovery request carries indication information for indicating whether to update the AS key, so that the first network node may Whether to update the AS key is determined according to the indication information.
  • the first network node may determine to update the AS key, or if the indication information indicates that the AS key is not updated, the first network node may determine whether according to the current service condition. Updating the AS key, for example, if there is currently a service data band transmission, the terminal device may determine to update the key of the terminal device, thereby ensuring the reliability of data transmission; or if there is currently no service data to be transmitted, the first A network node determines not to update the key of the terminal device, thereby being able to reduce the signaling overhead of the network device.
  • the first network node may also determine whether to update the key according to other information, for example, the first network node may determine not to update the AS key without updating the key without affecting the reliability of the data transmission. .
  • the first network node may also determine whether to update the AS key according to whether the anchor network node of the terminal device changes, for example, the first network node may determine that the anchor network node of the terminal device changes.
  • the AS key of the terminal device is determined to be updated, so that the reliability of the data transmission can be ensured. If the anchor network node of the terminal device is not changed, it is determined that the AS key of the terminal device is not updated, thereby reducing the network. Signaling overhead of the device.
  • Case 2 The network node currently serving the terminal device and the network node currently serving the terminal device are different network nodes.
  • the first network node may forward the RRC connection recovery request to the anchor network node of the terminal device.
  • the first network node may be a container.
  • the manner of (container) transmits the RRC connection recovery request to the anchor network node of the terminal device, so that the anchor network node of the terminal device can determine whether to update the AS key according to the indication information in the RRC connection recovery request.
  • the specific implementation process refer to the implementation process of the first network node in Case 1, and details are not described herein again.
  • the communication method according to the embodiment of the present application is described above with reference to FIG. 2 from the perspective of a network node.
  • a communication method according to an embodiment of the present application is described from the perspective of a terminal device. It should be understood that the description of the network node and the description of the terminal device correspond to each other, and similar descriptions may be referred to above. To avoid repetition, details are not described herein again.
  • FIG. 3 is a schematic flowchart of a communication method 300 provided by an embodiment of the present application.
  • the method 300 may be performed by a terminal device in the communication system 100 shown in FIG. 1.
  • the method 300 may include the following content. :
  • the terminal device in an inactive state determines whether to update a key of the terminal device.
  • the RRC connection recovery request is sent by the terminal device to the first network node, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device, where
  • the first network node is a network node currently serving the terminal device.
  • the terminal device in the inactive state determines whether to update the key of the terminal device, including:
  • the terminal device determines not to update the key of the terminal device.
  • the terminal device may determine whether to update the AS key according to the trigger event of the RRC connection recovery. For example, when the trigger event of the RRC connection recovery is the RAN location area update, the terminal device may determine not to update the AS key. Therefore, the signaling overhead of the network device can be reduced; if the trigger event is downlink data arrival or uplink data is to be transmitted, in this case, the terminal device can determine to update the AS key of the terminal device, thereby enabling data transmission. Reliability.
  • the embodiment of the method of the present application is described in detail below with reference to FIG. 2 to FIG. 3 .
  • the device embodiment of the present application is described in detail below with reference to FIG. 4 to FIG. 7 . It should be understood that the device embodiment and the method embodiment correspond to each other, similarly. The description of the method can be referred to the method embodiment.
  • FIG. 4 shows a schematic block diagram of a network device 400 in accordance with an embodiment of the present application.
  • the network device 400 includes:
  • the communication module 410 is configured to receive a radio resource control RRC connection recovery request sent by the terminal device in an inactive state, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device
  • the network device is a network node currently serving the terminal device
  • the determining module 420 is configured to determine, according to the indication information, whether to update a key of the terminal device.
  • the network device is an anchor network node of the terminal device.
  • the determining module 420 is specifically configured to:
  • the indication information indicates that the key of the terminal device is updated, determining to update a key of the terminal device;
  • the indication information indicates that the key of the terminal device is not updated, determining whether to update the key of the terminal device according to the current service situation.
  • the determining module 420 is further configured to:
  • the determining module 420 is further configured to:
  • the context information of the terminal device is not saved on the network device, and the communication module 410 is further configured to:
  • the network device 400 may correspond to the first network node in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 400 are respectively implemented to implement FIG. 2
  • the corresponding flow of the first network node in the method 200 is not described here for brevity.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 500 of FIG. 5 includes:
  • a determining module 510 configured to determine whether to update a key of the terminal device, where the terminal device is in an inactive state
  • the communication module 520 is configured to control, by the first network node, the RRC connection recovery request, where the RRC connection recovery request includes indication information, where the indication information is used to indicate whether to update the key of the terminal device, where The first network node is a network node currently serving the terminal device.
  • the determining module 510 is specifically configured to:
  • the trigger event of the terminal device switching from the inactive state to the connected state is the access network RAN location area update, it is determined that the key of the terminal device is not updated.
  • the terminal device 500 may correspond to (for example, may be configured or be itself) the terminal device described in the foregoing method 300, and each module or unit in the terminal device 500 is configured to perform the terminal in the foregoing method 300, respectively.
  • Detailed descriptions of the operations and processes performed by the device are omitted here to avoid redundancy.
  • the embodiment of the present application further provides a network device 600, which may be the terminal device 400 in FIG. 4, which can be configured to execute a first network corresponding to the method 200 in FIG.
  • the content of the node includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected by a bus system.
  • the memory 640 is configured to store programs, instructions or code.
  • the processor 630 is configured to execute a program, instruction or code in the memory 640 to control the input interface 610 to receive signals, control the output interface 620 to transmit signals, and perform operations in the foregoing method embodiments.
  • the processor 630 may be a central processing unit (“CPU"), and the processor 630 may also be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the communication module 410 included in the network device 400 in FIG. 4 can be implemented by using the output interface 620 and the input interface 610 of FIG. 6, and the determining module 420 included in the network device 400 of FIG.
  • the processor 630 of 6 is implemented.
  • the embodiment of the present application further provides a terminal device 700, which may be the terminal device 500 in FIG. 5, which can be configured to execute a terminal device corresponding to the method 300 in FIG. content.
  • the terminal device 700 includes an input interface 710, an output interface 720, a processor 730, and a memory 740.
  • the input interface 710, the output interface 720, the processor 730, and the memory 740 can be connected through a bus system.
  • the memory 740 is configured to store programs, instructions or code.
  • the processor 730 is configured to execute a program, instruction or code in the memory 740 to control the input interface 710 to receive signals, control the output interface 720 to transmit signals, and perform operations in the foregoing method embodiments.
  • the processor 730 may be a central processing unit (“CPU"), and the processor 730 may also be other general-purpose processors, digital signal processors ( DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 740 can include read only memory and random access memory and provides instructions and data to the processor 730. A portion of the memory 740 can also include a non-volatile random access memory. For example, the memory 740 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 730 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 740, and the processor 730 reads the information in the memory 740 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the determining module 510 included in the terminal device 500 in FIG. 5 may be implemented by the processor 730 of FIG. 7, and the communication module 520 included in the terminal device 500 of FIG. 5 may use the input interface of FIG. 710 and the output interface 720 are implemented.
  • the embodiment of the present application further provides a computer readable storage medium storing one or more programs, the one or more programs including instructions, when the portable electronic device is included in a plurality of applications When executed, the portable electronic device can be caused to perform the method of the embodiment shown in Figures 2 and 3.
  • the embodiment of the present application also proposes a computer program comprising instructions which, when executed by a computer, cause the computer to perform the corresponding flow of the method of the embodiment shown in Figures 2 and 3.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

L'invention concerne un procédé de communication, un dispositif de réseau et un dispositif terminal. Le procédé comprend les étapes au cours desquelles : un premier nœud de réseau reçoit une demande de reprise de connexion de commande de ressources radio (RRC) envoyée par un dispositif terminal dans un état inactif, la demande de reprise de connexion RRC contenant des informations d'indication, les informations d'indication servant à indiquer s'il faut mettre à jour une clé secrète du dispositif terminal, le premier nœud de réseau étant un nœud de réseau desservant actuellement le dispositif terminal ; et le premier nœud de réseau détermine en fonction des informations d'indication s'il faut mettre à jour la clé secrète du dispositif terminal.
PCT/CN2018/076845 2018-02-14 2018-02-14 Procédé de communication, dispositif de réseau et dispositif terminal WO2019157712A1 (fr)

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CN201880076316.5A CN111406381B (zh) 2018-02-14 2018-02-14 通信方法、网络设备、终端设备和计算机可读存储介质
PCT/CN2018/076845 WO2019157712A1 (fr) 2018-02-14 2018-02-14 Procédé de communication, dispositif de réseau et dispositif terminal

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CN114650147A (zh) * 2020-12-02 2022-06-21 成都鼎桥通信技术有限公司 登录方法及设备
CN115669192A (zh) * 2020-07-10 2023-01-31 Oppo广东移动通信有限公司 数据传输方法、装置、终端设备和存储介质
CN115918176A (zh) * 2020-09-28 2023-04-04 Oppo广东移动通信有限公司 数据传输方法、装置、终端设备和存储介质

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WO2022110048A1 (fr) * 2020-11-27 2022-06-02 Oppo广东移动通信有限公司 Procédé et appareil d'indication d'informations, dispositif terminal et dispositif de réseau

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