公开(公告)号：US11469867B2

公开(公告)日：2022-10-11

申请号：US16521536

申请日：2019-07-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiafeng Shao ,  Chaojun Li ,  Zuomin Wu

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W28/06

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting a reference signal and a method and an apparatus for receiving a reference signal. The method includes: determining, by a terminal device, sequence information of a first sequence set corresponding to a first reference signal and information about a first resource used for transmitting the first reference signal, where the first sequence set includes at least one sequence, the information about the first resource includes time domain information of the first resource and/or frequency domain information of the first resource, and a first mapping relationship exists between the sequence information of the first sequence set and the information about the first resource; and transmitting, by the terminal device, the first reference signal based on the sequence information of the first sequence set and the information about the first resource. This can reduce signaling overheads during uplink transmission, improve utilization efficiency of system resources, and improve system reliability.

公开(公告)号：US11343808B2

公开(公告)日：2022-05-24

申请号：US16672847

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zuomin Wu ,  Lei Guan ,  Sha Ma

IPC: H04W72/04 ,  H04L1/00 ,  H04W16/14 ,  H04W72/12

Abstract: A terminal device receives first scheduling information from an access network device, where the first scheduling information is used to schedule the terminal device to transmit a first transport block by using an unlicensed carrier; performs rate matching on the first transport block, to obtain uplink data; detects the unlicensed carrier, and determines a start time domain symbol, used to send the uplink data, in at least two time domain symbols included in a first subframe, where the at least two time domain symbols include a first time domain symbol and a second time domain symbol, the second time domain symbol is later than the first time domain symbol, and the start time domain symbol is the first time domain symbol or the second time domain symbol; and sends the uplink data to the access network device from the start time domain symbol.

公开(公告)号：US11219020B2

公开(公告)日：2022-01-04

申请号：US16734879

申请日：2020-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaojun Li ,  Sha Ma ,  Zuomin Wu

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713 ,  H04L12/70

Abstract: The present disclosure relates to data transmission methods, apparatus, and systems. One example base station includes at least one processor and a transceiver. The at least one processor is configured to determine a data transmission resource, where the data transmission resource includes a time-domain transmission resource and a frequency-domain transmission resource. The transceiver is configured to send downlink control information (DCI) to a terminal device, where the DCI indicates the time-domain transmission resource, and perform data transmission with the terminal device on the data transmission resource.

公开(公告)号：US10542438B2

公开(公告)日：2020-01-21

申请号：US15810794

申请日：2017-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zuomin Wu ,  David Jean-Marie Mazzarese ,  Qiang Li ,  Sha Ma ,  Yuan Xia

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: Embodiments of the present invention disclose a method for detecting a signal on an unlicensed spectrum channel, user equipment, and a base station. The method includes: receiving, by user equipment, instruction information sent by a base station; and starting, by the user equipment according to the instruction information, to detect a signal on an unlicensed spectrum channel. According to the present invention, only when receiving the instruction information sent by the base station, the user equipment detects the signal on the unlicensed spectrum channel according to the instruction information. This reduces power consumption of the user equipment.

公开(公告)号：US20190335459A1

公开(公告)日：2019-10-31

申请号：US16507188

申请日：2019-07-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Juan Zheng ,  Zuomin Wu ,  Lei Guan ,  Qiang Li

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

Abstract: The present disclosure relates to example data transmission methods, user equipment, and access network devices in an LAA-LTE system. An example data receiving method includes determining, by user equipment, first information of a first cell. The user equipment determines a first subframe based on the first information, where a downlink data transmission length of the first subframe is less than a first threshold. The user equipment then determines a data transmission characteristic of the cell in the first subframe based on a preset condition, so as to receive, based on the data transmission characteristic, data including the first subframe. In doing so, a data transmission characteristic of a base station or a terminal is standardized, and a reference signal such as a DRS can be correctly identified.

公开(公告)号：US10666398B2

公开(公告)日：2020-05-26

申请号：US15900678

申请日：2018-02-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zuomin Wu ,  Sha Ma ,  Chaojun Li

IPC: H04W4/00 ,  H04L1/18 ,  H04L29/08 ,  H04L1/16 ,  H04L12/26 ,  H04W72/04 ,  H04L1/00 ,  H04W88/08

Abstract: A base station determines a feedback manner of hybrid automatic repeat request HARQ feedback information of user equipment, where the feedback manner includes: feeding back the HARQ feedback information, or skipping feeding back the HARQ feedback information. The base station also determines first signaling according to the feedback manner of the HARQ feedback information, where the first signaling implicitly indicates the feedback manner of the HARQ feedback information. The base station sends the first signaling to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the first signaling.

公开(公告)号：US10523401B2

公开(公告)日：2019-12-31

申请号：US15009963

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zuomin Wu ,  Hai Wu ,  Xingqing Cheng ,  Ningbo Zhang ,  Hao Wang

IPC: H04L5/00 ,  H04J11/00 ,  H04W24/02 ,  H04W72/04 ,  H04W72/08

Abstract: Embodiments provide a method, an apparatus, and a system for handling co-channel cell interference, a base station and a user terminal. The method includes obtaining interference information of a non-serving cell; and sending the obtained interference information of the non-serving cell to a user terminal UE. Co-channel interference caused in the non-serving cell to the UE can be well suppressed or cancelled, and performance of the UE in demodulating a PDSCH can be better improved.

公开(公告)号：US10455623B2

公开(公告)日：2019-10-22

申请号：US15706314

申请日：2017-09-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meiying Yang ,  Zuomin Wu ,  Sha Ma ,  Qiang Li ,  Lei Wan

IPC: H04W74/08 ,  H04L12/801

Abstract: Embodiments of the present disclosure provide a backoff window adjustment method, and an apparatus. In downlink transmission, a base station obtains a trigger condition for adjusting a length of a backoff window on a first channel, and adjusts the length of the backoff window of the base station on the first channel according to the obtained trigger condition for adjusting the length of the backoff window on the first channel. In uplink transmission, a user equipment (UE) obtains a trigger condition for adjusting a length of a backoff window on a first channel, and adjusts the length of the backoff window of the UE on the first channel according to the obtained trigger condition for adjusting the length of the backoff window on the first channel.

公开(公告)号：US20190229965A1

公开(公告)日：2019-07-25

申请号：US16370563

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zuomin Wu ,  Lei Guan

IPC: H04L27/26 ,  H04W72/14 ,  H04W72/12

Abstract: Embodiments of the present invention provide a control channel transmission method, a network device, and a terminal device. The method includes: mapping a first control channel to M consecutively-numbered first transmission elements, where the first control channel is used to schedule a data channel, a transmission element is a smallest unit used to transmit a control channel, and M≥1; and sending the first control channel to a terminal device.

公开(公告)号：US20170311340A1

公开(公告)日：2017-10-26

申请号：US15646383

申请日：2017-07-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zuomin Wu ,  Lei Guan ,  Yuan Li ,  Sha Ma

IPC: H04W72/12 ,  H04L5/00 ,  H04W16/14

CPC classification number: H04W72/12 ,  H04L5/0044 ,  H04L5/0048 ,  H04W16/14 ,  H04W74/0816

Abstract: A message transmission method for a base station whereby after obtaining a permission for a channel of an unlicensed spectrum, the base station cyclically sends a first sequence immediately, where a time interval between a first moment and a start moment of a first symbol is not less than a time length of the first sequence of one period, the time length of the first sequence of one period is not greater than a time length of a symbol that does not include a cyclic prefix (CP), and the first sequence is a characteristic sequence of a licensed-assisted access using long term evolution (LAA-LTE) system.