公开(公告)号：US20190132834A1

公开(公告)日：2019-05-02

申请号：US16231558

申请日：2018-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiyu Yan ,  Lei Guan ,  Juan Zheng ,  Yuan Li

IPC: H04W72/04 ,  H04W52/14 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18

Abstract: Embodiments of the present invention provide an uplink control channel sending method, an uplink control channel receiving method, and an apparatus. The sending method includes: receiving, by terminal device, downlink data from a network device in each subframe in a first subframe set; obtaining, by the terminal device, first downlink control information from the network device; and sending, by the terminal device, a target physical uplink control channel in a first uplink subframe according to an indication of the first downlink control information.

公开(公告)号：US20190123875A1

公开(公告)日：2019-04-25

申请号：US16216348

申请日：2018-12-11

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Lei Guan ,  Yan Cheng

IPC: H04L5/00

Abstract: Embodiments of the present invention disclose a method and a device for detecting and transmitting information. The method includes: obtaining, by a UE, at least one type of configuration information of an antenna port occupied by a D-PDCCH, which is configured on a base station side; determining, by the UE, a search space of the D-PDCCH; and detecting, by the UE, the D-PDCCH in the search space according to the antenna port configuration information. With the embodiments of the present invention, the UE can detect the D-PDCCH, and therefore data transmission is ensured. Furthermore, a blind detection of a PDCCH by the UE based on time-frequency resources in an existing system is extended to a spatial dimension, that is, an antenna port, thereby increasing the efficiency of resource utilization, so that the D-PDCCH can be detected in the spatial dimension.

公开(公告)号：US10264583B2

公开(公告)日：2019-04-16

申请号：US15799811

申请日：2017-10-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixia Xue ,  Lei Guan ,  David jean-marie Mazzarese ,  Yongxing Zhou

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

Abstract: The present invention discloses a carrier switching method, a base station, and user equipment, where the method includes: determining, according to carrier switching capability information of user equipment UE, a carrier switching policy according to which the UE performs carrier switching; and sending carrier switching indication information to the UE, where the carrier switching indication information is used for indicating the carrier switching policy, so that the UE performs carrier switching according to the carrier switching policy. In the carrier switching method, the base station and the user equipment according to embodiments of the present invention, the UE having no carrier aggregation capability is enabled to dynamically perform switching between at least two carriers, so that quality of service of a service of the UE can be improved, user experience can be improved, and system performance can be improved.

公开(公告)号：US20190081756A1

公开(公告)日：2019-03-14

申请号：US16188140

申请日：2018-11-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiyu Yan ,  Lei Guan

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L1/00 ,  H04L5/0051 ,  H04L5/0053 ,  H04L27/0006 ,  H04W72/042 ,  H04W72/0446

Abstract: Embodiments of the present disclosure provide an aperiodic SRS transmission method and an apparatus, and relate to the communications field, so as to resolve a problem that an existing terminal device cannot send an aperiodic SRS on a carrier of an unlicensed spectrum. The transmission method includes: obtaining, by a terminal device, first indication information, where the first indication information is used to instruct the terminal device to send an aperiodic sounding reference signal SRS on a first symbol in a first subframe; and sending, by the terminal device, the aperiodic SRS on the first symbol based on the first indication information.

公开(公告)号：US10225062B2

公开(公告)日：2019-03-05

申请号：US15392621

申请日：2016-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Guan ,  Yongxia Lv

IPC: H04B7/00 ,  H04L5/00 ,  H04W76/27 ,  H04L1/18 ,  H04W52/04 ,  H04W72/04 ,  H04W88/02

Abstract: The present disclosure discloses a method and device for transmitting ACK/NACK indication information. A network-side device configures at least two carriers for a UE; transmits PDCCH information to the UE; selects one of at least two timing relationships as a first timing relationship; determines a corresponding third uplink subframe and first carrier; indicate related information corresponding to the third uplink subframe and the first carrier to the UE; in the third uplink subframe of the first carrier, determines a first channel resource, and indicates the first channel resource to the UE; and receives an ACK/NACK fed back by the UE on the allocated resource.

公开(公告)号：US10085203B2

公开(公告)日：2018-09-25

申请号：US15195610

申请日：2016-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lixia Xue ,  David Jean-Marie Mazzarese ,  Lei Guan

IPC: H04W52/02 ,  H04W48/14 ,  H04W68/00 ,  H04L5/00 ,  H04W76/28

CPC classification number: H04W48/14 ,  H04L5/0048 ,  H04W52/0206 ,  H04W68/00 ,  H04W76/27 ,  H04W76/28 ,  Y02D70/1262 ,  Y02D70/25

Abstract: Embodiments of the present disclosure provide a method, where the method includes: when determining that a first cell enters or prepares to enter a dormant state, sending, by a base station, a first signal to a user equipment (UE) in the first cell, where the first signal carries information about time when the first cell enters the dormant state, for determining, according to the information about the time, that the first cell enters the dormant state; and when determining that the first cell enters an active state from the dormant state, sending, by the base station, a second signal to the user equipment in the first cell, for determining, according to the second signal, that the first cell enters the active state. By using technical solutions provided in the present disclosure, the UE can discover a state change of a cell in time.

公开(公告)号：US09980280B2

公开(公告)日：2018-05-22

申请号：US15340421

申请日：2016-11-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Guan ,  Wenji Liu

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

CPC classification number: H04W72/1268 ,  H04L5/0037 ,  H04L5/0073 ,  H04W72/042 ,  H04W72/12 ,  H04W72/1273 ,  H04W72/1289

Abstract: The present invention provides a method and an apparatus for sending uplink/downlink scheduling information, and a method and an apparatus for receiving uplink/downlink scheduling information. The method for sending downlink scheduling information includes: determining, in downlink subframes on a second carrier, a first downlink subframe, in which at time corresponding to the first downlink subframe, a subframe on a first carrier is an uplink subframe; and sending, on a fifth downlink subframe on the first carrier, downlink scheduling information corresponding to the first downlink subframe on the second carrier to a terminal, in which time corresponding to the fifth downlink subframe is before the time corresponding to the first downlink subframe. The present invention achieves the purpose of performing uplink and downlink scheduling on a second carrier through a first carrier bearing a PDCCH.

公开(公告)号：US09825750B2

公开(公告)日：2017-11-21

申请号：US13973691

申请日：2013-08-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Cheng ,  Yongxia Lv ,  Lei Guan

IPC: H04J3/00 ,  H04L5/14 ,  H04W72/12 ,  H04B7/26

CPC classification number: H04L5/14 ,  H04B7/2643 ,  H04B7/2656 ,  H04W72/1205

Abstract: Indicating a attribute of a dynamic subframe in the scenario of applying the dynamic TDD subframe in a time division duplexing system includes: determining, by a user equipment, an attribute of a dynamic subframe, wherein the attribute of the dynamic subframe indicates that the dynamic subframe is an uplink subframe or that the dynamic subframe is a downlink subframe; and performing an information transmission according to the attribute of the dynamic subframe.

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.

公开(公告)号：US20170302312A1

公开(公告)日：2017-10-19

申请号：US15637781

申请日：2017-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Guan ,  David Jean-Marie Mazzarese ,  Brian Classon

IPC: H04B1/10 ,  H04W72/04 ,  H04W48/16 ,  H04W28/18 ,  H04W16/14 ,  H04W4/12 ,  H04L5/00 ,  H04W72/08 ,  H04B17/391

CPC classification number: H04B1/10 ,  H04B17/3913 ,  H04L5/001 ,  H04W4/12 ,  H04W16/10 ,  H04W16/14 ,  H04W28/18 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/085

Abstract: A system and method for transmitting a reference signal in a cell that uses an unlicensed frequency band. The method includes determining a candidate resource set that is used when a first reference signal is transmitted in the cell that uses the unlicensed frequency band, where the candidate resource set includes a preset resource and at least one flexible candidate resource, determining a first candidate resource that is used when the first reference signal is transmitted in the cell that uses the unlicensed frequency band, where a channel on the unlicensed frequency band corresponding to the first candidate resource is in an idle state, and the first candidate resource is the preset resource or a flexible candidate resource in the candidate resource set, and sending the first reference signal on the first candidate resource.