Communication Method and Device
    41.
    发明申请

    公开(公告)号:US20200021978A1

    公开(公告)日:2020-01-16

    申请号:US16579368

    申请日:2019-09-23

    Abstract: A communication method and a device, the method including obtaining, by a terminal device, a security key, where the terminal device performs the obtaining while the terminal device is in a state in which the terminal device has disconnected a radio resource control (RRC) connection from a first network device, and in which the terminal device retains context information for a context, in the first network device, of the terminal device, and sending, by the terminal device, a first message to a second network device, where the first message includes an identifier of the terminal device and at least one of encrypted uplink data or encrypted signaling, the at least one of encrypted uplink data or encrypted signaling is encrypted by using the security key, and where the second network device is different from the first network device.

    Connection Release Method and Apparatus
    43.
    发明申请

    公开(公告)号:US20190357299A1

    公开(公告)日:2019-11-21

    申请号:US16530401

    申请日:2019-08-02

    Abstract: Embodiments of the present invention provide a connection release method and an apparatus. The connection release method in the present invention includes: generating, by a first access network device, a first message, where the first message includes connection release information for a terminal device and verification information, the verification information is used to verify whether the connection release information is valid, and the connection release information is used to instruct the terminal device to release a connection; and sending, by the first access network device, the first message to a second access network device. According to the embodiments of the present invention, a connection of the terminal device can be released securely and quickly.

    Communication method between core network device and terminal in communication system

    公开(公告)号:US10455541B2

    公开(公告)日:2019-10-22

    申请号:US16361224

    申请日:2019-03-22

    Inventor: Jun Du Bingzhao Li

    Abstract: Embodiments of the present application provide a communication method, comprising: receiving, by a first access network device from a core network device, signaling destined for a terminal, wherein the terminal is in a radio resource control (RRC) inactive mode; sending a first paging message to a second access network device for paging the terminal, wherein the first access network device and the second access network device are in same paging area; and receiving, from the second access network device, first indication information indicating that the terminal has connected to the second access network device. In the embodiments of the present application, after receiving the signaling destined for the terminal from the core network device, the first access network device can learn the terminal has connected to the second access network device, and therefore performs proper subsequent processing.

    METHOD FOR REPORTING USER EQUIPMENT CAPABILITY INFORMATION AND APPARATUS

    公开(公告)号:US20190200212A1

    公开(公告)日:2019-06-27

    申请号:US16287958

    申请日:2019-02-27

    CPC classification number: H04W8/183 H04W8/24 H04W72/10 H04W76/27 H04W88/02

    Abstract: A method for reporting UE capability information includes: obtaining, by user equipment (UE), UE capability information of the UE; when the size of the UE capability information exceeds the maximum tolerance that can be processed by the PDCP layer of the UE, splitting the UE capability information into at least two pieces of UE capability information, where each piece does not exceed the maximum tolerance that can be processed by the PDCP layer; and reporting at least one piece of the at least two pieces of UE capability information to a network side device. According to this method, the UE capability information is split on a UE side, and reported to the network side device for a plurality of times, so as to avoid an error caused when the UE capability information exceeds the maximum tolerance that can be processed by the PDCP layer, and ensure normal operating of a UE capability information reporting process.

    Apparatus and method for determining transmission direction of secondary carrier

    公开(公告)号:US10263659B2

    公开(公告)日:2019-04-16

    申请号:US15358529

    申请日:2016-11-22

    Abstract: Embodiments of the present invention provide an apparatus and a method for determining a transmission direction of a secondary carrier. A reference carrier of a first secondary carrier is obtained according to network configuration information, and a transmission direction of a subframe on the first secondary carrier is determined according to a transmission direction of a subframe on the reference carrier, so that data transmission directions of the reference carrier and the first secondary carrier are the same at a same moment. A transmission direction of data of the subframes on the first secondary carrier transmitted in a frequency band adjacent to a frequency band of the reference carrier is determined by using the reference carrier, thereby avoiding interference occurring when the adjacent frequency bands simultaneously transmit data of different directions.

    COMMUNICATION METHOD AND APPARATUS
    50.
    发明申请

    公开(公告)号:US20190082352A1

    公开(公告)日:2019-03-14

    申请号:US16188735

    申请日:2018-11-13

    Abstract: A communication method and an apparatus are provided to improve communications efficiency. The communication method includes: receiving, by a base station, carrier aggregation capability information from UE; receiving, by the base station, carrier information from the UE, where the carrier information indicates a carrier requested by the UE for use, the carrier information includes first information, the first information is used to indicate a type of a service corresponding to at least some of the carrier requested by the UE for use, the carrier requested by the UE for use includes a carrier other than all carriers used by the base station; and sending, by the base station, indication information to the UE based on the carrier aggregation capability information and the carrier information, where the indication information is used to indicate allowing the UE to use one or more of the carrier requested by the UE for use.

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