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公开(公告)号：US10785765B2
公开(公告)日：2020-09-22
申请号：US16371681
申请日：2019-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Kunpeng Liu , Qiang Wu , Jianghua Liu
Abstract: In a system and method of control channel transmission in the communications field, REs, except those used for transmitting a DMRS, are grouped in each physical resource block pair of L physical resource block pairs. The L physical resource block pairs are determined to be used to transmit a control channel into N eREGs. The number of valid REs are calculated except other overheads in each eREG of the N eREGs. Each of the eCCEs are mapped onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair. The eCCE is sent in the REs included in the eREG.
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公开(公告)号：US10735148B2
公开(公告)日：2020-08-04
申请号：US15940980
申请日：2018-03-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of the present invention disclose an acknowledgement indication method for data transmission and a related device. The method includes: detecting, by a base station, whether each user equipment (UE) in an acknowledgement group transmits data, to obtain a detection result; generating, by the base station, an acknowledgement indication message according to the detection result, where the acknowledgement indication message indicates a flag bit status corresponding to each UE in the acknowledgement group, the flag bit status includes a first state or a second state, the first state indicates that the base station finds data, and the second state indicates that the base station does not find data; and sending, by the base station, the acknowledgement indication message.
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公开(公告)号：US10680765B2
公开(公告)日：2020-06-09
申请号：US15637752
申请日：2017-06-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Qiang Wu , Yongxing Zhou , Bingyu Qu
Abstract: A control information transmission method, a base station, and user equipment are disclosed. The transmission method includes: sending, by a base station, first control information on a second carrier, where the first control information is used by the base station to send data on a first carrier according to the first control information; and sending, by the base station, the data on the first carrier according to the first control information; where duration of a transmission time interval of the first carrier is less than duration of a transmission time interval of the second carrier.
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公开(公告)号：US10560162B2
公开(公告)日：2020-02-11
申请号：US16125276
申请日：2018-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Qiang Wu , Leiming Zhang
IPC: H04B7/06 , H04B7/0456 , H04B7/0417 , H04L5/00
Abstract: A transmit diversity method, a device, and a system are described herein. The method includes: measuring, by a second network device, channel state information based on a pilot signal, and sending rank index information and precoding matrix index information to a first network device based on the channel state information; receiving, by the first network device, the rank index information and the precoding matrix index information that are sent by the second network device; determining a diversity coding scheme based on the rank index information; determining a precoding matrix based on the precoding matrix index information; and performing transmission processing on to-be-transmitted data based on the diversity coding scheme and the precoding matrix.
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公开(公告)号：US20200007264A1
公开(公告)日：2020-01-02
申请号：US16566106
申请日：2019-09-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Qiang Wu , Yongxing Zhou
Abstract: According to a resource configuration method, user equipment, and a base station that are provided in embodiments of the present invention and relate to the communications field. A specific solution is as follows: A base station sends M reference signals to UE in N time units in a time unit set, where the reference signal is used by the UE to perform channel quality measurement, and each reference signal in the M reference signals is corresponding to one piece of precoding matrix information. The base station receives channel quality indication information sent by the UE.
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Patent Agency Ranking
公开(公告)号：US20190245665A1
公开(公告)日：2019-08-08
申请号：US16385252
申请日：2019-04-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiang Wu , Yiqun Qian , Yang Li , Jianghua Liu
CPC classification number: H04L5/0048 , H04L5/0016 , H04L5/0023 , H04L5/0026 , H04L5/0053 , H04W72/042
Abstract: The present invention discloses a method, a device and a system for transmitting an enhanced downlink control channel, which belong to the communications field. The method for sending an enhanced downlink control channel includes: presetting a multiplexing unit, where the multiplexing unit includes at least one resource block pair, and the at least one resource block pair includes E-PDCCH resources and DM RS resources, and the E-PDCCH resources include multiple control channel elements; sending at least one E-PDCCH corresponding to at least one UE in at least one control channel element of the multiplexing unit, and sending the DM RS corresponding to the at least one UE. The present invention reduces the granularity of an enhanced downlink control channel, saves resources and enhances the downlink control channel, thereby providing more control channels for the UE to use.
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公开(公告)号：US20190191422A1
公开(公告)日：2019-06-20
申请号：US16282732
申请日：2019-02-22
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jianqin Liu , Jianghua Liu , Qiang Wu , Chi Gao
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.
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公开(公告)号：US10305558B2
公开(公告)日：2019-05-28
申请号：US15274240
申请日：2016-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Leiming Zhang , Qiang Wu , Jianghua Liu
IPC: H04B7/0456 , H04B7/06 , H04W88/02
Abstract: Embodiments of the present invention disclose a precoding matrix indicator feedback method, receiving method, and apparatus. User equipment UE receives a reference signal sent by a base station; the UE selects, based on the reference signal, a precoding matrix for each first subband of N first subbands in a system transmission bandwidth from a codebook, where the codebook includes at least two precoding matrixes, and each precoding matrix is denoted by at least a first precoding matrix indicator PMI and a second PMI, where each first subband of the N first subbands corresponds to a second PMI, and each second subband of M second subbands corresponds to a first PMI; and the UE feeds back the first PMI corresponding to each second subband to the base station, and feeds back the second PMI corresponding to each first subband to the base station.
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公开(公告)号：US20180343159A1
公开(公告)日：2018-11-29
申请号：US16055353
申请日：2018-08-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianqin Liu , Jianghua Liu , Qiang Wu , Yongxing Zhou
Abstract: The present invention provides a signal sending apparatus, a signal detection apparatus, a signal sending and detection system, a signal sending method, and a signal detection method. The apparatus determines a time unit that is in each time window and that is used to transmit a synchronization signal, and transmits the synchronization signal in the determined time unit in each time window. Therefore, a synchronization signal is always located in a time unit that has a fixed location in each time window, so that a device at a receive end needs to perform detection only in a fixed time unit in each time window, thereby reducing complexity of designing and detecting the synchronization signal.
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公开(公告)号：US10079624B2
公开(公告)日：2018-09-18
申请号：US15066578
申请日：2016-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianghua Liu , Qiang Wu , Chi Gao
IPC: H04B7/00 , H04B7/0413 , H04L5/00 , H04B7/06 , H04L25/02 , H04L1/06 , H04W72/04 , H04B7/0452 , H04L25/03 , H04W84/04
CPC classification number: H04B7/0413 , H04B7/0452 , H04B7/0684 , H04B7/0697 , H04L1/0606 , H04L1/0643 , H04L5/0023 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L25/0204 , H04L25/0226 , H04L2025/03426 , H04W72/042 , H04W84/042
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.
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