公开(公告)号：US10575292B2

公开(公告)日：2020-02-25

申请号：US15630837

申请日：2017-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chaojun Li ,  Qiang Wu

IPC: H04W72/04 ,  H04L5/00

Abstract: Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method includes determining, by a terminal device, a resource set and resource elements (REs) of predetermined overheads in the resource set. The REs of the predetermined overheads include an RE of at least one of a paging channel and a synchronization channel, with at least one of following REs: an RE of a channel state information-reference signal (CSI-RS), an RE of a cell-specific reference signal (CRS), an RE of a demodulation reference signal (DMRS), or a muted RE. The terminal device receives from a base station, a control channel on an RE subset comprised in the resource set, wherein the RE subset comprises a part of the REs in the resource set and do not contain the REs of the predetermined overheads.

公开(公告)号：US20190288784A1

公开(公告)日：2019-09-19

申请号：US16345148

申请日：2016-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Zhao ,  Zhiheng Guo ,  Qiang Wu ,  Xingqing Cheng

IPC: H04J13/00 ,  H04L27/26

Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for sending a random access preamble sequence, an apparatus, and a system. In this solution, a terminal device obtains a cyclic shift value that satisfies a high-speed movement scenario and sends a random access preamble sequence corresponding to the cyclic shift value. Impact brought by the high-speed movement scenario is considered when the random access preamble sequence is determined, thereby avoiding interference between terminal devices in the high-speed scenario.

公开(公告)号：US10383123B2

公开(公告)日：2019-08-13

申请号：US15840659

申请日：2017-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Jianqin Liu ,  Jianghua Liu

IPC: H04W72/04 ,  H04L12/26 ,  H04W24/02 ,  H04L5/00 ,  H04W88/08 ,  H04W72/02 ,  H04W72/12

Abstract: The present disclosure describes a physical downlink control channel (PDCCH) candidate determining method and device, and relates to the field of wireless communications, so as to avoid PDCCH blocking and improve reliability of control information transmission. The method of the present invention includes: determining an PDCCH resource set p in a subframe k, where the PDCCH resource set p includes NECCE,p,k=q×r enhanced control channel elements (ECCEs), an PDCCH candidate of an PDCCH with an aggregation level being L corresponds to L ECCEs having consecutive reference numerals, and an PDCCH candidate is capable of carrying an PDCCH; and determining the number of PDCCH candidates at the aggregation level L of a carrier corresponding to an index Cellindex and an ECCE corresponding to each PDCCH candidate, where the ECCE corresponding to each PDCCH candidate at the aggregation level L is related to the index Cellindex.

公开(公告)号：US10368316B2

公开(公告)日：2019-07-30

申请号：US15637343

申请日：2017-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xingqing Cheng ,  Hai Wu ,  Qiang Wu ,  Zhengwei Gong

IPC: H04W52/24 ,  H04W72/04 ,  H04W52/16 ,  H04W52/14 ,  H04W52/38 ,  H04W52/42 ,  H04W72/12 ,  H04W52/28 ,  H04W52/34 ,  H04W52/54

Abstract: A communication method and an apparatus are provided. The method includes: obtaining, by a base station, power parameters of a first user equipment UE and an adjustment parameter δ1,ue1 for a first transmit power; sending, by the base station, the power parameters of the first UE and the adjustment parameter δ1,ue1 for the first transmit power to the first UE; determining, by the base station, the first transmit power according to the power parameters of the first UE and the adjustment parameter δ1,ue1 for the first transmit power; and sending, by the base station, a signal to the first UE at the first transmit power.

公开(公告)号：US20190097691A1

公开(公告)日：2019-03-28

申请号：US16123340

申请日：2018-12-14

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04B7/0413 ,  H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04L1/06 ,  H04W72/04 ,  H04W84/04 ,  H04B7/0452 ,  H04L25/03

Abstract: Embodiments of the present invention disclose a method and an apparatus for transmitting data, and the method includes: first setting at least two second resource groups in each first resource group of at least one first resource group, and setting at least two reference signals in each of the second resource groups; then encoding data to be transmitted and generating two data streams from the encoded data; then, mapping the two data streams onto an available resource element of two different antenna ports, in which the reference signals corresponding to the two different antenna ports are set on two different second resource groups; and finally, transmitting, on the available resource element of the two different antenna ports, data on the two antenna ports. The present invention is applicable to the field of communications systems.

公开(公告)号：US10194455B2

公开(公告)日：2019-01-29

申请号：US15263165

申请日：2016-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Weijun Sun ,  Leiming Zhang ,  Jianghua Liu

IPC: H04W72/12 ,  H04B7/06 ,  H04L1/00

Abstract: Embodiments of the present invention provide a method for feeding back a channel quality indicator, and a method and an apparatus for sending resource scheduling information. An apparatus for feeding back a channel quality indicator includes: a determining module, configured to determine a feedback granularity of a CQI according to a system bandwidth, a CQI feedback mode, and antenna port quantity information specified by a network device; and a feedback module, configured to feed back the CQI to the network device according to the feedback granularity of the CQI. The method for feeding back a channel quality indicator, and the method and the apparatus for sending resource scheduling information provided in the embodiments of the present invention are used to reduce system overheads.

公开(公告)号：US20180343094A1

公开(公告)日：2018-11-29

申请号：US16055317

申请日：2018-08-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Wu ,  Chi Gao ,  Jianqin Liu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

Abstract: The present invention provides methods for transmitting and receiving a control channel, a base station, and a user equipment. The method for transmitting a control channel includes: determining m PRB pairs used for transmitting a control channel to be transmitted; when a distributed transmission mode is used for transmission, determining an aggregation level L of the control channel to be transmitted; determining, according to the aggregation level L, a first control channel candidate at the aggregation level L; and placing, on physical resources to which the first control channel candidate is mapped, control information of the control channel to be transmitted, and transmitting the control information. The present invention improves multiplexing efficiency of control channels of different modes.

公开(公告)号：US10116364B2

公开(公告)日：2018-10-30

申请号：US15208522

申请日：2016-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongping Zhang ,  Dong Lei ,  Yi Guo ,  Qiang Wu

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/0417 ,  H04L12/24 ,  H04B7/06 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08 ,  H04W84/04

Abstract: The present invention provides a method for determining a rank indication (RI) bit number, a base station, and a terminal. The method includes: determining, by a base station, indication information according to a correspondence between a terminal and the base station and a multi-input multi-output (MIMO) capability of the terminal, where the indication information includes information used by the terminal for determining a bit number occupied for sending a RI; and sending, by the base station, the indication information to the terminal, so that the terminal determines, according to the indication information, the bit number occupied for sending the RI. In the present invention, the UE and the base station agree or understanding of the bit number occupied by RI information.

公开(公告)号：US10084580B2

公开(公告)日：2018-09-25

申请号：US15491290

申请日：2017-04-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Chi Gao ,  Jianqin Liu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0064 ,  H04W72/04 ,  H04W72/0406

Abstract: The present invention provides methods for transmitting and receiving a control channel, a base station, and a user equipment. The method for transmitting a control channel includes: determining m PRB pairs used for transmitting a control channel to be transmitted; when a distributed transmission mode is used for transmission, determining an aggregation level L of the control channel to be transmitted; determining, according to the aggregation level L, a first control channel candidate at the aggregation level L; and placing, on physical resources to which the first control channel candidate is mapped, control information of the control channel to be transmitted, and transmitting the control information. The present invention improves multiplexing efficiency of control channels of different modes.

公开(公告)号：US20180270802A1

公开(公告)日：2018-09-20

申请号：US15988220

申请日：2018-05-24

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianqin Liu ,  Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0053 ,  H04W72/04

Abstract: The present application provides a method and an apparatus for allocating control channel candidates, which relate to the communications field, and can allocate control channel candidates at different aggregation levels to K ePDCCH sets and reduce complexity of blind detection performed by a UE. The method includes: determining K sets for transmitting a control channel, where each set in the K sets includes at least one physical resource block pair; and allocating control channel candidates at each aggregation level to at least one set in the K sets according to at least one of aggregation levels supported by the control channel to be transmitted, the number of control channel candidates corresponding to each aggregation level, the K sets for transmitting the control channel, and types of the sets.