公开(公告)号：US20190387397A1

公开(公告)日：2019-12-19

申请号：US16553713

申请日：2019-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Longyu CAO ,  Yuan XIA ,  Xiaodong SUN ,  Junping ZHOU

IPC: H04W12/00 ,  H04L12/66 ,  H04W12/08

Abstract: This application relates to the field of communications technologies, and discloses a lawful interception method, apparatus, and system for performing lawful interception on local offloaded service data of user equipment. The method includes: receiving, by a centralized gateway device, an interception instruction sent by a lawful interception gateway device, where the interception instruction carries an identifier of to-be-intercepted user equipment; sending, by the centralized gateway device to a remote gateway device, an offloading disabling instruction, where the offloading disabling instruction instructs the remote gateway device to disable a local offloading function of the user equipment; and receiving, by the centralized gateway device, service data of the user equipment sent by the remote gateway device, and reporting the service data to a lawful interception center.

公开(公告)号：US20190260557A1

公开(公告)日：2019-08-22

申请号：US16308327

申请日：2016-06-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lili ZHANG ,  Richard STIRLING-GALLACHER ,  Xiaodong SUN ,  Bin LIU

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/08 ,  H04W24/10

Abstract: A reference signal transmission method and a related device and system are disclosed. The method includes: determining, by a first base station, at least one target subframe on a target frequency band, where the target frequency band is a frequency band whose uplink and downlink transmission directions are configurable, and uplink-downlink timeslot configurations and/or transmission directions of the first base station and a neighboring second base station in the at least one target subframe are different; and sending, by the first base station, a first reference signal to first user equipment UE in the at least one target subframe, where the first UE is UE served by the first base station. When embodiments of the present invention are implemented, a reference signal can be transmitted on a flexible frequency band, thereby effectively reducing interference between reference signals between neighboring cells in a flexible duplex system.

公开(公告)号：US20190149263A1

公开(公告)日：2019-05-16

申请号：US16305949

申请日：2016-05-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen DONG ,  Xiaodong SUN ,  Yanliang SUN ,  Jian WANG

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/34

Abstract: Embodiments of the present invention provide a method for determining a transmission rate supported by a data stream, user equipment, and a base station. The method includes: determining, by user equipment UE, a first index corresponding to an average transmission rate supported by a channel between the UE and the base station; determining, by the UE, a second index corresponding to a difference between an instantaneous transmission rate supported by a data stream on the channel and an average transmission rate supported by the data stream on the channel; sending, by the UE, the first index to the base station; and sending, by the UE, the second index to the base station. According to the embodiments of the present invention, the instantaneous transmission rate supported by the data stream on the channel can be relatively accurately fed back to the base station, thereby improving channel resource utilization.

公开(公告)号：US20200008126A1

公开(公告)日：2020-01-02

申请号：US16569946

申请日：2019-09-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sirui LONG ,  Xiaodong SUN

IPC: H04W40/20 ,  H04W40/24 ,  H04W8/28 ,  H04W4/02

Abstract: The application relates to a route delivery method and device. A location information of user equipment UE is received by a control plane network element device. A client IP address used by the control plane network element device to access a third-party server is determined based on the location information by the control plane network element device. An access request message is sent by the control plane network element device to the third-party server carrying the client IP address. A UE IP address assigned by the third-party server to the UE based on the client IP address is received by the control plane network element device. A user plane network element device configured to deliver a route to the UE is determined based on the UE IP address and the location information by the control plane network element device.

公开(公告)号：US20200036492A1

公开(公告)日：2020-01-30

申请号：US16335684

申请日：2016-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaodong SUN ,  Jian WANG ,  Richard STIRLING-GALLACHER ,  Chen DONG

IPC: H04L5/00 ,  H04W52/24 ,  H04W52/36 ,  H04W52/42 ,  H04L5/14

Abstract: A sounding reference signal sending method and user equipment are disclosed. The method includes the following steps: receiving a configuration parameter of a sounding reference signal SRS, and determining, based on the configuration parameter, a time-frequency resource occupied by the SRS, where the configuration parameter includes a trigger type, a period parameter, and a time-frequency resource location identifier; obtaining a power control parameter of the SRS, and calculating, based on the power control parameter and a preset calculation formula, a transmit power for sending the SRS; and sending the SRS on the time-frequency resource at the transmit power. The trigger type includes beamforming and non-beamforming. The period parameter is an identifier used to indicate that the SRS is sent periodically or aperiodically.