公开(公告)号：US10461916B2

公开(公告)日：2019-10-29

申请号：US15675060

申请日：2017-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang

IPC: H04L5/16 ,  H04W72/04 ,  H04L5/00

Abstract: The embodiments discloses a data transmission method and device. The method includes: separately configuring, by an eNodeB in different time units on a specific frequency band according to a TDD mode or an FDD mode, an uplink frequency resource used for transmitting uplink data and a downlink frequency resource used for transmitting downlink data; and sending, by the eNodeB, downlink data to user equipment UE by using the configured downlink frequency resource, and receiving, by using the configured uplink frequency resource, uplink data sent by the UE, so that an uplink frequency resource and a downlink frequency resource are configured in different time units on a same frequency band according to both a TDD mode and an FDD mode.

公开(公告)号：US10390246B2

公开(公告)日：2019-08-20

申请号：US15061386

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu

IPC: H04B1/38 ,  H04W24/10 ,  H04L1/00 ,  H04B7/06

Abstract: The present invention discloses a channel measurement method, including: acquiring first channel information, where the first channel information includes one or more of the following information: first CSI of a first channel, and first measurement configuration information used for measuring the first channel; receiving second measurement configuration information sent by a base station and used for measuring a second channel, and measuring the second channel according to the first channel information and the second measurement configuration information, to obtain second CSI. The present invention further discloses a terminal device and a base station. Subsets of a CSI-RS pattern of a whole antenna and a CSI-RS pattern of a partial antenna are configured and feedbacks to quality information of a whole channel and quality information of a partial channel are combined, so that not only signaling is reduced but also feedback accuracy is improved.

公开(公告)号：US10367556B2

公开(公告)日：2019-07-30

申请号：US16015831

申请日：2018-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06

Abstract: A method for measuring and feeding back channel information and a corresponding apparatus are provided. In an embodiment the method includes determining, by a first network device, a first codebook from a first codebook set, wherein the first codebook set comprises at least two first codebooks, wherein a sub-vector Wx of each first codebook is formed by a zero vector and a non-zero vector, wherein vectors forming the Wx are associated with different groups of antenna ports, wherein each first codebook comprises at least one first sub-vector   [ V a 0 0 V a 1 0 ] and/or at least one second sub-vector   [ 0 V b 0 0 V b 1 ] , and wherein Va0 and Va1 are elements in the vector Va, and Vb0 and Vb1 are elements in the vector Vb and sending a codebook index to a second network device, wherein the codebook index is associated with the first codebook selected from the first codebook set.

公开(公告)号：US10200937B2

公开(公告)日：2019-02-05

申请号：US15192864

申请日：2016-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Chai ,  Kunpeng Liu

IPC: H04W48/10 ,  H04B7/0452 ,  H04W16/28 ,  H04L5/00

Abstract: Embodiments of the present disclosure disclose a message broadcast method, a base station, and user equipment. The message broadcast method includes: determining, by a base station, a piece of system subgroup information of system information of a first cell, where each piece of system subgroup information includes system information content that is applied to a user equipment group that corresponds to the system subgroup information. The method also includes broadcasting, to the user equipment group, the system subgroup information that corresponds to the user equipment group. In such a manner, system information that is generated due to a requirement of a new technology can be effectively reduced, and user equipment can be prevented from receiving information unrelated to the user equipment and triggering unnecessary behavior.

公开(公告)号：US10171145B2

公开(公告)日：2019-01-01

申请号：US15895666

申请日：2018-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Jianghua Liu ,  Leiming Zhang

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

Abstract: The present invention provides a codebook configuration method and user equipment. The UE receives a reference signal that is of an antenna whose quantity of antenna ports is X and that is sent by a base station and configuration information of a codebook subset restriction for the quantity X of antenna ports, where the configuration information of the codebook subset restriction for the quantity X of antenna ports includes first configuration information and second configuration information; determines, according to the configuration information of the codebook subset restriction for the quantity X of antenna ports, a precoding matrix on which channel measurement and feedback need to be performed; and obtains, by means of measurement according to the reference signal, the precoding matrix on which channel measurement and feedback need to be performed and that is of antenna ports.

公开(公告)号：US10154421B2

公开(公告)日：2018-12-11

申请号：US15606576

申请日：2017-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Liang Xia ,  Yuan Xia

IPC: H04L1/00 ,  H04W24/02 ,  H04J13/10 ,  H04L25/02

Abstract: A reference signal sequence configuration method includes: selecting, by a network device and from candidate IDs, an ID used for generating a reference signal initialization sequence for a terminal, where the candidate IDs include at least two IDs, and the selected ID does not include a scrambling ID; and generating a reference signal initialization sequence for the terminal according to the selected ID. An implementation manner of the present invention further provides a network device. In the reference signal sequence configuration method and the network device, a reference signal initialization sequence is generated according to the selected ID, thereby providing a manner of generating a reference signal initialization sequence different from the manner in the prior art.

公开(公告)号：US10128928B2

公开(公告)日：2018-11-13

申请号：US15365653

申请日：2016-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming Zhang ,  Yongxing Zhou ,  Jianghua Liu ,  Kunpeng Liu

IPC: G01C11/02 ,  H04B7/06 ,  H04B7/0456

Abstract: The present invention discloses a channel state information CSI reporting method and apparatus, and a base station antenna. In the method, at least one precoding matrix is selected from a codebook based on a reference signal sent by a base station, and CSI is sent to the base station. The CSI includes at least one selected precoding matrix indicator PMI, and the PMI is corresponding to the selected at least one precoding matrix. At least one precoding matrix W included in the codebook may be expressed as W=W1W2, where is a Kronecker product, and at least one of W1 or W2 is an antenna selection matrix. Therefore, in embodiments of the present invention, the base station can select, according to the at least one precoding matrix that is fed back, one or more antenna ports to send a signal.

公开(公告)号：US10056950B2

公开(公告)日：2018-08-21

申请号：US15637636

申请日：2017-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Wu ,  Leiming Zhang ,  Jianqin Liu ,  Kunpeng Liu ,  Jianghua Liu

IPC: H04B7/0417 ,  H04W72/04 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04B7/0456 ,  H04L5/0048 ,  H04W72/0413 ,  H04W88/08

Abstract: In a 3D MIMO scenario with 16 antenna ports, antenna ports can be extended in different directions because of different configuration manners of the antenna ports. An apparatus and method where different antenna port counting manners are determined in different configurations are provided, so that in different configurations, a matrix whose dimension is 8 and a matrix whose dimension is 2 are determined in a precoding codebook, and a value of a PMI is fed back to indicate a precoding matrix.

公开(公告)号：US09980261B2

公开(公告)日：2018-05-22

申请号：US14972864

申请日：2015-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Chi Gao ,  Jianghua Liu

IPC: H04W72/04 ,  H04W48/16 ,  H04W74/00 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04W48/16 ,  H04W74/006

Abstract: Embodiments of the present invention provide methods for detecting and sending downlink control information and devices. The method for detecting downlink control information includes: acquiring a pilot port determining parameter that corresponds to downlink control information needing to be detected; determining, according to the pilot port determining parameter, a first-type pilot port that corresponds to the downlink control information; and detecting the downlink control information according to the first-type pilot port. In the embodiments of the present invention, user equipment can correctly detect downlink control information.

公开(公告)号：US20170373734A1

公开(公告)日：2017-12-28

申请号：US15700909

申请日：2017-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Leiming Zhang ,  Jianghua Liu

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/04 ,  H04B7/0673

Abstract: A method and an apparatus for measuring and feeding back channel information are disclosed. In an embodiment the method includes receiving, by a first network device, a reference signal and measuring the reference signal to obtain a measurement result. The method further includes selecting a first codebook from a first codebook set according to the measurement result, wherein the first codebook set comprises at least two first codebooks, a sub-vector Wx of each first codebook is formed by a zero vector and a non-zero vector, wherein the vectors forming the Wx correspond to different groups of antenna ports, and sending a codebook index to a second network device, wherein the codebook index corresponds to the first codebook selected from the first codebook set.