公开(公告)号：US09843366B1

公开(公告)日：2017-12-12

申请号：US15371840

申请日：2016-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/0456 ,  H04L1/06 ,  H04B7/0417 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0639 ,  H04L1/06

Abstract: Embodiments disclose a method for transmitting a 4-antenna precoding matrix, a user equipment, and a base station. The method includes determining a rank used for indicating the number of transmission layers, determining a first precoding matrix in a codebook set corresponding to the rank, determining a first PMI and a second PMI used for indicating the first precoding matrix, and sending the first PMI and the second PMI used for indicating the first precoding matrix to a base station.

公开(公告)号：US20170325227A1

公开(公告)日：2017-11-09

申请号：US15659279

申请日：2017-07-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Li ,  Qiang Wu ,  Bingyu Qu ,  Yongxing Zhou

IPC: H04W72/04

Abstract: The method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.

公开(公告)号：US20170303206A1

公开(公告)日：2017-10-19

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 ,  H04W52/38 ,  H04W52/14 ,  H04W72/12 ,  H04W52/42

CPC classification number: H04W52/243 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/286 ,  H04W52/346 ,  H04W52/383 ,  H04W52/42 ,  H04W52/54 ,  H04W72/04 ,  H04W72/12 ,  Y02D70/00

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：US20170264390A1

公开(公告)日：2017-09-14

申请号：US15607232

申请日：2017-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu ,  Qiang Wu ,  Yongxing Zhou

IPC: H04L1/00 ,  H04W24/10

CPC classification number: H04L1/0001 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/20 ,  H04W16/28 ,  H04W24/10 ,  H04W72/085

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, reference signals used for measurement and overheads of corresponding measurement and feedback are reduced. 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; receives channel quality indication information sent by the UE.

公开(公告)号：US09706542B2

公开(公告)日：2017-07-11

申请号：US15211686

申请日：2016-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chaojun Li ,  Qiang Wu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/0453

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 for configuring a control channel resource includes: determining, by a base station according to a system configuration and/or user configuration, resource elements REs included in an extended control channel element E-CCE, and transmitting an extended physical downlink control channel E-PDCCH to a user equipment, where the E-PDCCH is carried by the E-CCE; and receiving, by the user equipment, the E-PDCCH, and obtaining the REs included in the E-CCE, and receiving, over the REs included in the E-CCE, the E-PDCCH transmitted by the base station. The embodiments of the present invention are used for configuring and detecting a control channel resource.

公开(公告)号：US09673947B2

公开(公告)日：2017-06-06

申请号：US14611999

申请日：2015-02-02

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：US09577724B2

公开(公告)日：2017-02-21

申请号：US15090446

申请日：2016-04-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming Zhang ,  Qiang Wu ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/06 ,  H04L25/03 ,  H04B1/04

CPC classification number: H04B7/0417 ,  H04B1/0475 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03006

Abstract: The present invention provides a precoding matrix indicator feedback method, a receive end, and a transmit end. The method includes: selecting, by a receive end based on a reference signal, a precoding matrix W from a codebook, where a coefficient α is used to perform phase adjustment on φn in W, φn represents a phase difference between weighted values of a first antenna group and a second antenna group of a transmit end for a transmission signal from a same transmission layer, φ n ∈ { ⅇ j2π ⁢ ⁢ n Q } , and the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (PMI) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna configurations, and improve precision of the receive end to feed back a PMI.

Abstract translation: 本发明提供预编码矩阵指示符反馈方法，接收端和发送端。 该方法包括：基于参考信号的接收端选择来自码本的预编码矩阵W，其中使用系数±来对W中的n进行相位调整，Õn表示加权的 对于来自同一传输层的传输信号的发射端的第一天线组和第二天线组的值，n是非负整数，Q是 正整数，第一天线组和第二天线组属于相同的多天线系统; 并且由接收端将发送端的预编码矩阵指示符PMI发送到发送端，使得发送端根据PMI确定W。 以这种方式，使用系数±来执行相位调整可以增加适用于不同天线配置的码本集的大小，并且提高接收端的反馈PMI的精度。

公开(公告)号：US09571310B2

公开(公告)日：2017-02-14

申请号：US14541547

申请日：2014-11-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing Zhou ,  Qiang Wu

IPC: H04L25/03 ,  H04B7/04 ,  H04B17/318 ,  H04W72/04

CPC classification number: H04L25/03929 ,  H04B7/043 ,  H04B7/0465 ,  H04B17/318 ,  H04W72/042 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/444

Abstract: A method, a codebook, and a Base Station (BS) for precoding are provided. The precoding method includes: obtaining a total uplink power of a User Equipment (UE); if the total uplink power is greater than ¾ of a rated total transmit power of antennas, selecting a codeword from a first codebook with imbalanced power between layers; otherwise, selecting a codeword from the first codebook and a second codebook with balanced power between layers, so as for precoding data to be transmitted according to the selected codeword.

Abstract translation: 提供了一种用于预编码的方法，码本和基站（BS）。 预编码方法包括：获得用户设备（UE）的总上行链路功率; 如果总上行链路功率大于天线的额定总发射功率的3/4，则选择来自第一码本的码字，其中层之间具有不平衡的功率; 否则，从第一码本中选择码字和在层之间具有平衡功率的第二码本，以便根据所选择的码字对要发送的数据进行预编码。

公开(公告)号：US20160381697A1

公开(公告)日：2016-12-29

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

CPC classification number: H04W72/1231 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0029

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.

Abstract translation: 本发明的实施例提供了一种用于反馈信道质量指示符的方法，以及用于发送资源调度信息的方法和装置。 用于反馈信道质量指示符的装置包括：确定模块，被配置为根据系统带宽，CQI反馈模式和由网络设备指定的天线端口数量信息来确定CQI的反馈粒度; 以及反馈模块，被配置为根据CQI的反馈粒度将CQI反馈到网络设备。 用于反馈信道质量指示符的方法，以及用于发送本发明的实施例中提供的资源调度信息的方法和装置用于减少系统开销。

公开(公告)号：US09490949B2

公开(公告)日：2016-11-08

申请号：US14319366

申请日：2014-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chi Gao ,  Mingyu Zhou ,  Liang Xia ,  Qiang Wu ,  Jianghua Liu

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0051 ,  H04W72/042

Abstract: Various embodiments of the present invention provide a pilot resource allocation method, where the method includes: determining, according to an aggregation level and multiplexing information of an enhanced control channel element E-CCE in a resource block pair, the number of resource elements REs that are allocated to and occupied by a demodulation pilot signal DMRS in the resource block pair. Various embodiments of the present invention further provide a corresponding user equipment. By implementing the method and device, the efficiency of time-frequency resource utilization can be improved.

Abstract translation: 本发明的各种实施例提供一种导频资源分配方法，其中该方法包括：根据资源块对中的增强控制信道单元E-CCE的聚合级别和复用信息，确定资源块对的数量RE 被分配给资源块对中的解调导频信号DMRS占用。 本发明的各种实施例还提供相应的用户设备。 通过实施该方法和装置，可以提高时频资源利用效率。