COMMUNICATION METHOD AND APPARATUS
    1.
    发明公开

    公开(公告)号:US20240220972A1

    公开(公告)日:2024-07-04

    申请号:US18598547

    申请日:2024-03-07

    Abstract: This application relates to a communication method and apparatus. A first node sends a first message. The first message includes at least one of request information and information about a first transaction, the request information is used to request to modify a second transaction, the first transaction is a modified second transaction, and the second transaction is stored in a first blockchain. The first blockchain includes N blocks, an ith block in the first blockchain includes a first field and a second field, and the second field is used to store a second preset value or a second hash value of a previous block whose block height is the same as a block height of the ith block. Editability of the block is implemented by using the first hash value, to implement editability of the blockchain.

    PAIRING METHOD AND APPARATUS
    3.
    发明公开

    公开(公告)号:US20240023175A1

    公开(公告)日:2024-01-18

    申请号:US18477144

    申请日:2023-09-28

    Inventor: Jing CHEN Yong WANG

    CPC classification number: H04W76/10 H04W12/041 H04W12/069 H04W12/50

    Abstract: Embodiments of this application provide a pairing method and apparatus, applied to the field of communications technologies and the field of connected vehicles. The method includes: A first node sends a first message, where the first message includes indication information of at least one pairing method supported by the first node; and receives a second message from a second node, where the second message includes indication information of a first pairing method, and the first pairing method is included in a pairing method supported by both the first node and the second node. According to embodiments of this application, the two nodes may support a plurality of pairing methods, so that the first pairing method is agreed on from the plurality of pairing methods, thereby improving node pairing flexibility.

    SECURITY PROTECTION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20230284103A1

    公开(公告)日:2023-09-07

    申请号:US18171198

    申请日:2023-02-17

    Inventor: He LI Jing CHEN

    Abstract: This application relates to the field of wireless communications technologies. Embodiments of this application provide a security protection method, an apparatus, and a system, to resolve a problem of low efficiency in handing over a terminal between serving base stations. The method in this application includes: receiving, by a target access network device, a correspondence between user plane information and a security policy from a source access network device; and determining, by the target access network device based on the correspondence between user plane information and a security policy, a first user plane protection algorithm corresponding to the user plane information, where the first user plane protection algorithm includes one or both of a user plane encryption algorithm and a user plane integrity protection algorithm. This application is applicable to a procedure in which the terminal is handed over between serving base stations.

    KEY NEGOTIATION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20230087265A1

    公开(公告)日:2023-03-23

    申请号:US18070241

    申请日:2022-11-28

    Inventor: Yong WANG Jing CHEN

    Abstract: This application provides a key negotiation method, apparatus, and system, and may be applied to the communications field, for example, short-range communication (including a cockpit domain). During key negotiation between a first device and a second device, the first device notifies, by using first information, the second device of all key negotiation algorithms supported by the first device, and the second device selects, from the received key negotiation algorithms supported by the first device, a key negotiation algorithm supported by the second device. In this way, the key negotiation algorithm selected by the second device is supported by both the first device and the second device.

    TERMINATING ACCESS DOMAIN SELECTION METHOD AND APPARATUS

    公开(公告)号:US20230067838A1

    公开(公告)日:2023-03-02

    申请号:US17982212

    申请日:2022-11-07

    Abstract: Example terminating access domain selection methods and apparatus are described. One example method includes obtaining first information by a first node, where the first information is determined by one or more session management network nodes (SMNs) for selecting a terminating access domain of a terminal device. The first node determines, based on the first information determined by each of the one or more SMNs, second information for selecting the terminating access domain of the terminal device.

    KEY UPDATE METHOD AND RELATED APPARATUS

    公开(公告)号:US20220417015A1

    公开(公告)日:2022-12-29

    申请号:US17895707

    申请日:2022-08-25

    Inventor: Yong WANG Jing CHEN

    Abstract: Embodiments of this application provide a key update method and a related apparatus. One example method includes: sending a first key update request to a second node, where the first key update request includes a first key negotiation parameter and first identity authentication information, and the first identity authentication information is generated by using a first shared key; receiving a first response message from the second node, where the first response message includes second identity authentication information; performing verification on the second identity authentication information by using the first shared key; and if the verification on the second identity authentication information succeeds, determining a first target key based on the first key negotiation parameter.

    ACCESS METHOD, DEVICE, AND SYSTEM

    公开(公告)号:US20210112491A1

    公开(公告)日:2021-04-15

    申请号:US17132231

    申请日:2020-12-23

    Abstract: A method to reduce signaling interaction in an access process of a terminal includes: receiving, by a convergent network device, an access request message from a first access device on a first network, where the access request message carries a first globally unique temporary identity (GUTI) of a terminal, which is an old GUTI on the first network or a GUTI on the first network and obtained by mapping a second GUTI on a second network; determining, by the convergent network device, a first target context of the terminal on the first network based on the first GUTI and a device identifier corresponding to the convergent network device when serving as a mobility management device; and sending, by the convergent network device, an access response message to the first access device to indicate that the terminal has successfully accessed the first network.

    METHOD AND APPARATUS FOR OBTAINING IDENTIFIER OF TERMINAL DEVICE

    公开(公告)号:US20200163132A1

    公开(公告)日:2020-05-21

    申请号:US16751551

    申请日:2020-01-24

    Inventor: He LI Jing CHEN Huan LI

    Abstract: This application discloses a method and an apparatus for obtaining an identifier of a terminal device. The method is performed by a gateway node and includes: receiving a first message sent by a terminal device, and sending a second message to a control plane node, where both the first message and the second message carry a temporary identifier of the terminal device; receiving a third message sent by the control plane node, where the third message is sent by the control plane node when the control plane node cannot obtain a permanent identifier of the terminal device; sending a fourth message to the terminal device based on the third message; receiving a fifth message sent by the terminal device, where the fifth message carries the permanent identifier of the terminal device; and sending the permanent identifier to the control plane node based on the fifth message.

    SENB KEY UPDATE METHOD AND APPARATUS
    10.
    发明申请

    公开(公告)号:US20180249331A1

    公开(公告)日:2018-08-30

    申请号:US15966568

    申请日:2018-04-30

    Abstract: Embodiments of the present invention provide an SeNB key update method, including: establishing, by an MeNB, an RRC connection to UE, and determining a first SeNB and a second SeNB that are connected to the UE; calculating, by the MeNB, a key S-KeNB1 of the first SeNB and a key S-KeNB2 of the second SeNB, and sending an SeNB addition request to the first SeNB and the second SeNB; receiving, by the MeNB, a first request acknowledgment message fed back by the first SeNB, and receiving a second request acknowledgment message fed back by the second SeNB; and sending, by the MeNB, an RRC reconfiguration request to the UE according to the first request acknowledgment message and the second request acknowledgment message, where the RRC reconfiguration request includes key update information of the first SeNB and key update information of the second SeNB.

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