Communication method and communications apparatus

    公开(公告)号:US11882433B2

    公开(公告)日:2024-01-23

    申请号:US17867939

    申请日:2022-07-19

    Inventor: He Li Li Hu Rong Wu

    Abstract: A communication method and a communications apparatus, where the method includes: after receiving an RRC resume request message from a UE, determining, by a target access network device, a first user plane security protection method between the target access network device and the UE based on a context information obtaining response from a source access network device; determining a first user plane security key between the target access network device and the UE; when receiving first uplink user plane data from the UE, performing user plane security deprotection on the first uplink user plane data based on the first user plane security key and the first user plane security protection method, to obtain uplink user plane data; and sending the uplink user plane data.

    Information obtaining method and apparatus

    公开(公告)号:US11877150B2

    公开(公告)日:2024-01-16

    申请号:US17511680

    申请日:2021-10-27

    Inventor: Li Hu He Li

    CPC classification number: H04W12/0431 H04W8/12 H04W12/033 H04W12/106

    Abstract: An information obtaining method and an apparatus are disclosed. The method includes: sending a first initial NAS message including a non-cleartext information element protected using a first root key from a terminal to a source mobility management network element; receiving a second root key and first indication information from the source mobility management network element, where the first indication information indicates that the second root key is an updated key; sending second indication information and third indication information to the terminal based on the first indication information, where the second indication information indicates the terminal to update the first root key stored by the terminal to obtain the second root key, and the third indication information indicates the terminal to resend the initial NAS message; and receiving a second initial NAS message including the non-cleartext information element protected using the second root key from the terminal.

    Connection resume request method and apparatus

    公开(公告)号:US11627623B2

    公开(公告)日:2023-04-11

    申请号:US16874117

    申请日:2020-05-14

    Abstract: A connection resume request method includes generating, by a terminal, a new access stratum key; sending, by the terminal to a target base station, a connection resume request message requesting to resume a radio resource control (RRC) connection; receiving, by the terminal, a connection resume rejection message from the target base station, wherein the connection resume rejection message indicates that the resuming of the RRC connection is rejected; and resuming, by the terminal, the new access stratum key to a previous access stratum key, wherein the previous access stratum key is an access stratum key that is used, before the apparatus enters an inactive state, by the terminal and the source base station.

    RRC connection resume method and apparatus

    公开(公告)号:US11564099B2

    公开(公告)日:2023-01-24

    申请号:US16859699

    申请日:2020-04-27

    Abstract: This application provides an RRC connection resume method and apparatus. In the method, when a terminal moves to a target base station, the target base station may reselect, based on a capability and a requirement of the target base station, a first encryption algorithm and a first integrity protection algorithm that are used when the target base station communicates with the terminal, and send the first encryption algorithm and the first integrity protection algorithm to the terminal. On one hand, a security algorithm used for communication between the terminal and the target base station is flexibly selected. On the other hand, because the base station connected to the terminal changes, communication security can be improved by using a new encryption algorithm and integrity protection algorithm.

    Communication Method, Apparatus, and System

    公开(公告)号:US20230021215A1

    公开(公告)日:2023-01-19

    申请号:US17954759

    申请日:2022-09-28

    Inventor: Li Hu Rong Wu

    Abstract: A communication method and apparatus are provided, to implement automatic onboarding when no network-side information is configured on a terminal device. The method includes: The terminal device obtains auxiliary authentication information that includes identification information of one or more networks; determines access information of a first network based on first temporary authentication information and identification information of the first network, where the first network is any one of the one or more networks; triggers mutual temporary authentication with the first network based on the access information of the first network; and receives configuration information of the first network from the first network when the mutual temporary authentication succeeds. The terminal device may trigger the mutual temporary authentication with the first network based on the access information of the first network.

    Communication method and communications apparatus

    公开(公告)号:US11445365B2

    公开(公告)日:2022-09-13

    申请号:US17513021

    申请日:2021-10-28

    Inventor: He Li Li Hu Rong Wu

    Abstract: A communication method and a communications apparatus, where the method includes: after receiving an RRC resume request message from a UE, determining, by a target access network device, a first user plane security protection method between the target access network device and the UE based on a context information obtaining response from a source access network device; determining a first user plane security key between the target access network device and the UE; when receiving first uplink user plane data from the UE, performing user plane security deprotection on the first uplink user plane data based on the first user plane security key and the first user plane security protection method, to obtain uplink user plane data; and sending the uplink user plane data.

    COMMUNICATION METHOD AND DEVICE
    38.
    发明申请

    公开(公告)号:US20210067954A1

    公开(公告)日:2021-03-04

    申请号:US17023748

    申请日:2020-09-17

    Abstract: The present disclosure discloses a communication method performed by a management function entity, including: receiving a first request message sent by user equipment UE; sending a second request message to a storage function entity based on the first request message, where the second request message is used to request a security service identifier for the UE, and the security service identifier is used to indicate a security service procedure; receiving a response message including the security service identifier from the storage function entity; obtaining a target security service identifier based on the security service identifier, where the target security service identifier is used to indicate a security service procedure to be initiated by the management function entity; and initiating the security service procedure indicated by the target security service identifier. The present disclosure further discloses a communications device.

    Communication method and device
    39.
    发明授权

    公开(公告)号:US10805793B2

    公开(公告)日:2020-10-13

    申请号:US16585978

    申请日:2019-09-27

    Abstract: The present disclosure discloses a communication method performed by a management function entity, including: receiving a first request message sent by user equipment UE; sending a second request message to a storage function entity based on the first request message, where the second request message is used to request a security service identifier for the UE, and the security service identifier is used to indicate a security service procedure; receiving a response message including the security service identifier from the storage function entity; obtaining a target security service identifier based on the security service identifier, where the target security service identifier is used to indicate a security service procedure to be initiated by the management function entity; and initiating the security service procedure indicated by the target security service identifier. The present disclosure further discloses a communications device.

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