公开(公告)号：US20210141274A1

公开(公告)日：2021-05-13

申请号：US17152015

申请日：2021-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenxiong Wei ,  Fan Wang ,  Ao Shen ,  Honghai Zhang

IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1335

Abstract: An electronic device includes a light guide plate including three grating parts. A first grating part is configured to receive the emitted light through a light incident surface of the first grating part, diffract the emitted light to form a first light, and enable the first light to enter a second grating part. The second grating part is configured to form, based on the first light, a second light propagated in the second grating part, and form, based on the second light, a third light entering a third grating part. The third grating part is configured to form, based on the third light, a fourth light propagated in the third grating part, form an emergent light based on the fourth light, and enable the emergent light to be emitted through a light emergent surface of the third grating part and enter a cover plate.

公开(公告)号：US10999103B2

公开(公告)日：2021-05-04

申请号：US16584883

申请日：2019-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dongdong Wei ,  Zhe Liu ,  Jialing Liu ,  Fan Wang

IPC: H04L12/28 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04J1/16

Abstract: Embodiments provide a communication method, a network device, and a terminal device. Under the method, a network device can send SRS configuration information of a first transmission resource and of a second transmission resource to a terminal device. The first transmission resource is a switching source carrier or bandwidth part. The second transmission resource is a switching destination carrier or bandwidth part. The SRS configuration information of the first and second transmission resource includes a first OFDM symbol set and a second OFDM symbol set respectively. Some and all symbols in the first set and second set may be used by the terminal device to send an SRS on the first and second transmission resource respectively. In various embodiments, the network device configures one or more symbols for the terminal device to transmit an SRS, so that high-frequency channel measurement can be better supported.

公开(公告)号：US20210022175A1

公开(公告)日：2021-01-21

申请号：US17062117

申请日：2020-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dongdong Wei ,  Fan Wang

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/04

Abstract: A communications method and apparatus are provided. The method includes: receiving, by a terminal device, a first message from a network device, where the first message includes first offset information, or the first message includes second offset information, or the first message includes the first offset information and the second offset information; the first offset information is used to indicate a time offset value of a random access response RAR monitoring window for monitoring a RAR; and the second offset information is used to indicate a time offset value for sending a second message, and the second message is a message sent by the terminal device based on the RAR; and randomly accessing, by the terminal device, the network device based on the first message.

公开(公告)号：US20200267704A1

公开(公告)日：2020-08-20

申请号：US16867054

申请日：2020-05-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junchao Li ,  Hao Tang ,  Fan Wang ,  Zhenfei Tang

IPC: H04W72/04 ,  H04L5/00 ,  H04W48/12

Abstract: A method includes: communicating, by a base station, first UE specific information of UE with the UE in a UE source operating bandwidth resource; and sending, by the base station, information about a UE target operating bandwidth resource of the UE to the UE in a UE calibration bandwidth resource of the UE, where the UE target operating bandwidth resource is used by the base station to communicate second UE specific information of the UE with the UE, and the UE source operating bandwidth resource is not completely the same as the UE calibration bandwidth resource.

公开(公告)号：US10742469B2

公开(公告)日：2020-08-11

申请号：US16038163

申请日：2018-07-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tao Ouyang ,  Syed Habib Rahman ,  Xiaoshu Si ,  Fan Wang ,  Hao Lei

IPC: H04L27/26 ,  H04L7/00 ,  H04W56/00

Abstract: A method and an apparatus for determining a time offset are disclosed. The method includes: obtaining, by a device at a head end, a time-domain signal based on a received signal; and then determining a time offset based on values of peak-to-average ratios of a preset quantity of symbols starting from a qth symbol in the time-domain signal, where a peak-to-average ratio of the qth symbol is greater than a preset threshold. A new method for determining a time offset is provided, and takes advantages that the time-domain signal obtained by the device at the head end has stronger capabilities of resisting interference such as frequency offset and phase noise. The method for determining a time offset can be applied both to initial ranging and periodic ranging.

公开(公告)号：US10660079B2

公开(公告)日：2020-05-19

申请号：US16280565

申请日：2019-02-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junchao Li ,  Hao Tang ,  Fan Wang ,  Zhenfei Tang

IPC: H04W72/04 ,  H04W48/12 ,  H04L5/00 ,  H04W72/14

Abstract: A method includes: communicating, by a base station, first UE specific information of UE with the UE in a UE source operating bandwidth resource; and sending, by the base station, information about a UE target operating bandwidth resource of the UE to the UE in a UE calibration bandwidth resource of the UE, where the UE target operating bandwidth resource is used by the base station to communicate second UE specific information of the UE with the UE, and the UE source operating bandwidth resource is not completely the same as the UE calibration bandwidth resource.

公开(公告)号：US20200068535A1

公开(公告)日：2020-02-27

申请号：US16672046

申请日：2019-11-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Wang ,  Yuanjie Li ,  Hao Tang ,  Fan Wang ,  Zhenfei Tang

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12

Abstract: A resource indication method and an apparatus are provided, to increase a data reception success rate of a terminal. The method includes: receiving, by a terminal, first indication information from a base station, where the first indication information is used to indicate a resource configuration for a downlink data transmission, the resource configuration includes a time scheduling unit aggregation level and a time domain location in a single time scheduling unit, and the aggregation level represents a quantity of time scheduling units included in a resource for the downlink data transmission; and determining, by the terminal, that a time domain resource in the single time scheduling unit is valid for each time scheduling unit of one or more time scheduling unit a quantity of which is represented by the aggregation level, and receiving the downlink data transmission accordingly.

公开(公告)号：US20200068443A1

公开(公告)日：2020-02-27

申请号：US16673161

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Liu ,  Hao Tang ,  Fan Wang ,  Zhenfei Tang

IPC: H04W28/20 ,  H04W72/04 ,  H04W8/24 ,  H04W76/27 ,  H04L5/00

Abstract: A method for adjusting a terminal operating bandwidth, includes: a base station sends configuration information of at least two BPs to a terminal; and the base station sends a BP adjustment instruction to the terminal, where the BP adjustment instruction carries an identifier of a second BP, the second BP is one of the at least two BPs, the BP adjustment instruction is used to instruct the terminal to switch from a first BP to the second BP at a specified timeslot after the terminal receives the BP adjustment instruction.

公开(公告)号：US20200029293A1

公开(公告)日：2020-01-23

申请号：US16586414

申请日：2019-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhang Zhang ,  Zhenfei Tang ,  Fan Wang

IPC: H04W56/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: A timing advance determining method and a device are provided. In the method, a network device determines, based on a correspondence between a parameter set and a TA granularity, TA information used by a terminal on an occupied frequency domain resource, where the parameter set includes a subcarrier spacing and a cyclic prefix type of a symbol; the network device sends the TA information to the terminal; and the terminal determines, based on the correspondence between a parameter set and a TA granularity, a TA granularity corresponding to the frequency domain resource occupied by the terminal, and determines, based on the TA granularity and the TA information, a TA value used by the terminal on the occupied frequency domain resource.

公开(公告)号：US20200008076A1

公开(公告)日：2020-01-02

申请号：US16567694

申请日：2019-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinlin Peng ,  Fan Wang ,  Hao Tang

IPC: H04W16/14 ,  H04L27/26 ,  H04W72/04 ,  H04W8/18 ,  H04L5/00

Abstract: A component carrier grouping method and a device are provided. The method includes: grouping, by a network device, a plurality of component carriers configured for a terminal into at least one component carrier group of a first type, the terminal aggregates feedback information corresponding to the plurality of component carriers and feeds back the aggregated feedback information to the network device over one component carrier; and sending, by the network device, first grouping configuration information to the terminal.