公开(公告)号：US10122427B2

公开(公告)日：2018-11-06

申请号：US15834984

申请日：2017-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L25/03

Abstract: The present invention relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., eNB), and a system. The method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.

公开(公告)号：US10116363B2

公开(公告)日：2018-10-30

申请号：US15819179

申请日：2017-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/06 ,  H04B7/0456 ,  H04W16/28 ,  H04L5/00 ,  H04J13/00

Abstract: A method and an apparatus determine a precoding matrix indicator, user equipment, and a base station. The method includes: determining a precoding matrix indicator PMI, where the PMI corresponds to a precoding matrix W, and the precoding matrix W satisfies a first condition, a second condition, or a third condition; and sending the PMI to a base station. Embodiments of the present invention further provide a corresponding apparatus, and the corresponding user equipment and base station. Technical solutions provided in the embodiments of the present invention can effectively control a beam, especially a beam shape and a beam orientation, in a horizontal direction and a perpendicular direction.

公开(公告)号：US10084519B2

公开(公告)日：2018-09-25

申请号：US15819179

申请日：2017-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/06 ,  H04B7/0456 ,  H04W16/28 ,  H04L5/00 ,  H04J13/00

Abstract: A method and an apparatus determine a precoding matrix indicator, user equipment, and a base station. The method includes: determining a precoding matrix indicator PMI, where the PMI corresponds to a precoding matrix W, and the precoding matrix W satisfies a first condition, a second condition, or a third condition; and sending the PMI to a base station. Embodiments of the present invention further provide a corresponding apparatus, and the corresponding user equipment and base station. Technical solutions provided in the embodiments of the present invention can effectively control a beam, especially a beam shape and a beam orientation, in a horizontal direction and a perpendicular direction.

公开(公告)号：US20180249387A1

公开(公告)日：2018-08-30

申请号：US15965137

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Zhang ,  Bingyu Qu ,  Yuanjie Li ,  Yongxing Zhou

IPC: H04W36/00 ,  H04L5/00 ,  H04W72/04 ,  H04W48/08 ,  H04W74/08

CPC classification number: H04W36/0094 ,  H04L5/0053 ,  H04W48/08 ,  H04W72/0413 ,  H04W74/0833 ,  H04W88/08

Abstract: In an embodiment method, a terminal sends an uplink signal. The uplink signal is used to trigger a base station to send first system information, and the first system information is used by the terminal to camp on a cell. In the embodiment method, correspondingly, the base station receives the uplink signal sent by the terminal, and the base station sends the first system information on a beam in which the terminal is located. In the embodiment method, correspondingly, the terminal receives the first system information sent by the base station on the beam in which the terminal is located.

公开(公告)号：US20180234143A1

公开(公告)日：2018-08-16

申请号：US15950820

申请日：2018-04-11

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Yong Wu ,  Liang Xia

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04L5/0048

Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.

公开(公告)号：US10038541B2

公开(公告)日：2018-07-31

申请号：US15699603

申请日：2017-09-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liang Xia ,  Yongxing Zhou ,  David Jean-Marie Mazzarese ,  Jingyuan Sun

IPC: G01R31/08 ,  H04B7/00 ,  H04J3/00 ,  H04L5/00 ,  H04W72/12 ,  H04W24/10 ,  H04L1/00 ,  H04B17/345 ,  H04W24/08 ,  H04W24/00 ,  H04W88/08 ,  H04W88/02 ,  H04W72/02

CPC classification number: H04L5/0053 ,  H04B17/345 ,  H04L1/00 ,  H04L1/0026 ,  H04L1/0076 ,  H04L1/20 ,  H04L5/005 ,  H04L5/0094 ,  H04W24/00 ,  H04W24/08 ,  H04W24/10 ,  H04W72/02 ,  H04W72/1273 ,  H04W88/02 ,  H04W88/08

Abstract: Embodiments of the present invention provide an interference measurement method, a base station, and a user equipment. The method includes: determining, by a user equipment, a first resource for interference measurement in a first subframe or determining a second resource not for interference measurement in the first subframe according to at least one of the zero-power CSI-RS configuration information, the non-zero power CSI-RS configuration information, and the CSI-IM configuration information; and performing interference measurement on the first resource, or performing no interference measurement on the second resource. The embodiments of the present invention can improve precision of interference measurement.

公开(公告)号：US20180191474A1

公开(公告)日：2018-07-05

申请号：US15906891

申请日：2018-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingyuan Sun ,  Liang Xia ,  Yongxing Zhou ,  Xiaotao Ren

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

CPC classification number: H04L5/0012 ,  H04L5/0051 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/1263

Abstract: A carrier allocation method including acquiring, by a first base station, a carrier hopping pattern, sending, by the first base station to a user equipment (UE), carrier configuration information, where the carrier configuration information includes information about activating carrier hopping or the carrier hopping pattern, the carrier hopping pattern presents a carrier set used by a user equipment in at least one time unit, and the carrier set comprises at least one carrier, and sending, by the first base station, a signal to the UE or receiving a signal from the UE according to the carrier hopping pattern.

公开(公告)号：US20180097551A1

公开(公告)日：2018-04-05

申请号：US15819179

申请日：2017-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo WANG ,  Yongxing Zhou

IPC: H04W16/28 ,  H04B7/06 ,  H04L5/00 ,  H04J13/00

CPC classification number: H04B7/0456 ,  H04B7/0478 ,  H04B7/0639 ,  H04J13/0022 ,  H04L5/0048 ,  H04W16/28 ,  H04W88/08

Abstract: A method and an apparatus determine a precoding matrix indicator, user equipment, and a base station. The method includes: determining a precoding matrix indicator PMI, where the PMI corresponds to a precoding matrix W, and the precoding matrix W satisfies a first condition, a second condition, or a third condition; and sending the PMI to a base station. Embodiments of the present invention further provide a corresponding apparatus, and the corresponding user equipment and base station. Technical solutions provided in the embodiments of the present invention can effectively control a beam, especially a beam shape and a beam orientation, in a horizontal direction and a perpendicular direction.

公开(公告)号：US20180041323A1

公开(公告)日：2018-02-08

申请号：US15785881

申请日：2017-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L5/00 ,  H04B7/04 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04B7/04 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0048 ,  H04W72/0446

Abstract: Embodiments disclose a reference signal transmission method and an apparatus. The method includes receiving reference signal resource configuration information sent by a base station, where the reference signal resource configuration information includes antenna port quantity information and a resource configuration index. The method also includes determining a reference signal configuration from a reference signal configuration set according to the antenna port quantity information and the resource configuration index. The method also includes obtaining, according to the determined reference signal configuration, positions of the resource elements REs that are used to send the reference signal on the antenna ports in the antenna port set, and receiving reference signals according to the positions of the REs.

公开(公告)号：US09887825B2

公开(公告)日：2018-02-06

申请号：US15242864

申请日：2016-08-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing Zhou ,  Kunpeng Liu ,  Weijun Sun ,  Yunzhe Hou

IPC: H04Q7/00 ,  H04W24/10 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W72/06 ,  H04W72/12

CPC classification number: H04L5/0057 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/003 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/06 ,  H04W72/1231 ,  H04W72/1278 ,  H04W72/1284

Abstract: Methods and apparatus are provided for transmitting channel quality information. User equipment receives a control signaling for uplink scheduling. The control signaling for uplink scheduling includes at least one modulation and coding scheme (MCS) field, a channel quality information request field, and a resource block allocation field indicating the number of resource blocks (RBs), NRB, allocated to the user equipment for transmitting the channel quality information. When the channel quality information of multiple downlink carriers is requested, the user equipment transmits only the channel quality information on the uplink shared channel according to the allocated RBs if: the MCS bit field corresponding to one transport block indicates a MCS corresponding to a retransmitted data packet; the request bit field indicates a request for the channel quality information; and the NRB is equal to or less than 4*N, wherein N is a positive integer and corresponds to the number of multiple downlink carriers.