Data transmission method and apparatus

    公开(公告)号:US11284346B2

    公开(公告)日:2022-03-22

    申请号:US16503124

    申请日:2019-07-03

    Abstract: Embodiments of this application provide a data transmission method and apparatus. The method includes: receiving data sent by a terminal in an inactive state, where the data includes to-be-sent data sent by the terminal and identification information of the terminal; determining an anchor base station of the terminal based on the identification information; and sending the data to the anchor base station, so that the anchor base station sends the data to a core-network device. The uplink data of the terminal is forwarded to the anchor base station by using a serving base station and through an interaction between the anchor base station and the serving base station that currently provides an air interface resource for the terminal, and is then transmitted to a core network.

    Method and device for handover
    103.
    发明授权

    公开(公告)号:US11240724B2

    公开(公告)日:2022-02-01

    申请号:US16460594

    申请日:2019-07-02

    Abstract: A method for a handover of a mobile station performed by a source base station and a target base station. The target base station receives a handover request message, from the source base station, in which includes QoS information of the mobile device, radio bearer identifier information of the source base station, and a first mapping relationship between a flow and a radio bearer of the source base station, the target base station acknowledges with a handover acknowledgement message. Therefore resource preparation at the target base station during a handover procedure is improved.

    DELAY MEASUREMENT METHOD, NETWORK DEVICE, AND TERMINAL DEVICE

    公开(公告)号:US20210367683A1

    公开(公告)日:2021-11-25

    申请号:US17392523

    申请日:2021-08-03

    Abstract: Embodiments of this application provide a delay measurement method, a network device, and a terminal device. The method includes network device receiving first information from a core network requesting the network device to measure a transmission delay between the network device and the terminal device. The network device obtains a transmission delay measurement result in response to the first information, and sends second information to the core network within a first preset duration The second information provides an indication of the transmission delay measurement result.

    Method, base station, and user equipment for implementing carrier aggregation

    公开(公告)号:US11184886B2

    公开(公告)日:2021-11-23

    申请号:US15885161

    申请日:2018-01-31

    Abstract: Embodiments of the present invention provide a method, a base station, and a user equipment for implementing carrier aggregation. The method includes: determining, by a primary base station, to add a cell for a user equipment UE; and sending, by the primary base station, a first message to the UE, where the first message is used to instruct the UE to add the cell, the first message includes configuration information of the cell and an identifier or index of a base station to which the cell belongs, and the base station to which the cell belongs is a secondary base station. In the embodiments of the present invention, under the control of the primary base station of the UE, a cell of another base station can be added for the UE, so as to implement carrier aggregation between base stations, thereby further increasing user throughput of the UE.

    Communication Method and Apparatus, Terminal, Network Device, and Storage Medium

    公开(公告)号:US20210314977A1

    公开(公告)日:2021-10-07

    申请号:US17351435

    申请日:2021-06-18

    Abstract: Embodiments of this application provide a communication method, apparatus, a terminal, a network device, and a storage medium. After the terminal receives, from the network device, indication information used to indicate the terminal to report traffic pattern information of a first logical channel, a first PDU session, a first application, a first radio bearer, or a first QoS flow, the terminal reports the traffic pattern information of the first logical channel, the first PDU session, the first application, the first radio bearer, or the first QoS flow based on the indication information. In this manner, the terminal reports, based on the indication, the traffic pattern information of only the logical channel, the PDU session, the service, the radio bearer, or the QoS flow that is indicated by the network device.

    Data transmission method and data transmission apparatus

    公开(公告)号:US11109263B2

    公开(公告)日:2021-08-31

    申请号:US16563302

    申请日:2019-09-06

    Abstract: This application provides a transmission method and a data transmission apparatus. The method includes: sending, by a source access network device, data packets of a QoS flow and a first end marker packet to a first core network user plane device over a first data tunnel, wherein the first end marker packet indicates an end of sending data packets of the QoS flow to the first core network user plane device, and the first data tunnel is corresponding to a first PDU session; sending, by the first core network user plane device, the data packets received from the source access network device and a second end marker packet to a second core network user plane device over a second data tunnel; and sending, by the second core network user plane device, the data packets received from the first core network user plane device to a target access network device.

    Data forwarding method, device, and communications system

    公开(公告)号:US11076334B2

    公开(公告)日:2021-07-27

    申请号:US16574961

    申请日:2019-09-18

    Abstract: Embodiments of the present invention provide a data forwarding method, device, and communications system, which relate to the field of communications and can achieve accuracy and continuity of data transmission during carrier aggregation for cells between base stations. The method includes: sending, by a primary base station, a first message to a secondary base station, where the first message is used to instruct the secondary base station to perform handover, and the first message includes an identifier of a target base station; confirming, by the primary base station, that the secondary base station forwards data to the target base station; and sending, by the primary base station, a second message to a user equipment, where the second message is used to instruct the user equipment to acquire the data from the target base station. The embodiments of the present invention are used for data forwarding.

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