公开(公告)号：US10027463B2

公开(公告)日：2018-07-17

申请号：US14754273

申请日：2015-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04B7/06 ,  H04B17/318 ,  H04W24/06

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US09923687B2

公开(公告)日：2018-03-20

申请号：US14973975

申请日：2015-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Yongxing Zhou

IPC: H04L5/00 ,  H04B17/309 ,  H04L1/00

CPC classification number: H04L5/0048 ,  H04B17/309 ,  H04L1/0026 ,  H04L5/0023

Abstract: A method and an apparatus for measuring communication quality are disclosed. The method includes: acquiring reference signal resource configuration information, where the reference signal resource configuration information at least includes: reference signal port configuration information, and reference signal power information of at least one port group; or the reference signal resource configuration information at least includes: reference signal port configuration information, and a ratio of a power of a data channel in at least one port group to a power of a reference signal; and sending the acquired reference signal resource configuration information to user equipment. Therefore, in a multi-antenna system, accurate signal quality measurement information is acquired, or more accurate channel state information is acquired.

公开(公告)号：US20180069609A1

公开(公告)日：2018-03-08

申请号：US15808318

申请日：2017-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

Abstract: Embodiments of the present invention provide a method includes: receiving a reference signal sent by abase 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 three matrices being W1, Z, and W2, that is, W=W1ZW2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

公开(公告)号：US09900076B2

公开(公告)日：2018-02-20

申请号：US15198939

申请日：2016-06-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Jianghua Liu

IPC: H04L7/00 ,  H04L27/06 ,  H04B7/06 ,  H01Q9/28 ,  H04B7/0456 ,  H04B7/04 ,  H04L5/00 ,  H04W72/04 ,  H01Q1/24 ,  H01Q21/26

CPC classification number: H04B7/0632 ,  H01Q1/246 ,  H01Q9/285 ,  H01Q21/26 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0602 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094 ,  H04W72/046

Abstract: Embodiments of the present disclosure provide a method for acquiring channel information, an apparatus, and a system, relate to the communications field, and can reduce overhead of pilot signals in a process of acquiring channel state information. In various embodiments, a base station selects first preset antennas from an antenna array, maps the first preset antennas to pilot signals, and sends the pilot signals and antenna configuration information to a terminal, and the terminal obtains channel state information of second preset antennas by means of calculation according to the pilot signals and the antenna configuration information. The present disclosure can be applied for acquiring channel state information.

公开(公告)号：US20170353227A1

公开(公告)日：2017-12-07

申请号：US15686692

申请日：2017-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqin Liu ,  Yongxing Zhou ,  Jianghua Liu ,  Qiang Wu

IPC: H04B7/06 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04B7/0691 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0695 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2613 ,  H04W16/28 ,  H04W36/00

Abstract: A data transmission method, apparatus, and system, and user equipment are provided. The data transmission method may include determining configuration information of a first time unit in a radio time window, where the first time unit includes multiple sub-time units, a switching time period and a transmission time period are reserved in a first sub-time unit at an interval of at least N sub-time units in the first time unit, the switching time period is used to perform analog beam switching for a common channel and/or a common reference signal, and N is a natural number. The method also includes transmitting the common channel and/or the common reference signal in the first sub-time unit in the first time unit according to the configuration information of the first time unit, where the common channel and/or the common reference signal are/is transmitted in the transmission time period.

公开(公告)号：US09825837B2

公开(公告)日：2017-11-21

申请号：US14141014

申请日：2013-12-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianghua Liu

IPC: H04L12/26 ,  H04L1/18

CPC classification number: H04L43/12 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1896

Abstract: The present invention discloses a method and a user equipment for determining a control channel resource. The method includes: detecting a downlink control channel that carries scheduling information of a downlink data channel and is sent by a base station, where the downlink control channel is formed by at least one control channel logical element, and the at least one control channel logical element is mapped to at least one antenna port; acquiring at least one of antenna port information of a first antenna port corresponding to a first control channel logical element of the successfully detected downlink control channel and an offset, and sequence number information of the first control channel logical element; and determining, according to at least one of the antenna port information and the offset, as well as the sequence number information.

公开(公告)号：US09780939B2

公开(公告)日：2017-10-03

申请号：US14985003

申请日：2015-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianghua Liu ,  Mattias Frenne

IPC: H04W4/00 ,  H04L5/00 ,  H04B1/69 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04B1/16

CPC classification number: H04L5/0055 ,  H04B1/1607 ,  H04B1/69 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0026 ,  H04L5/0051 ,  H04W72/0406 ,  H04W72/042

Abstract: A method and a base station of transmitting a data block are provided. At least one data block is transmitted via at least one of at least two downlink frequency bands. A modulation symbol and N spreading sequences are received. Acknowledgement/negative acknowledgement (A/N) information is determined in accordance with the modulation symbol and the N spreading sequences. The modulation symbol and the N spreading sequences jointly determine the A/N information. And the at least one data block may be retransmitted depending on the A/N information determined.

公开(公告)号：US09608708B2

公开(公告)日：2017-03-28

申请号：US14883334

申请日：2015-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04B7/04 ,  H04B7/0456 ,  H04B7/0417

CPC classification number: H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

Abstract: Embodiments of the present invention provide a 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 three matrices being W1, Z, and W2, that is, W=W1ZW2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≧1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix w according to the PMI.

公开(公告)号：US09306652B2

公开(公告)日：2016-04-05

申请号：US14336747

申请日：2014-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianghua Liu ,  Qiang Wu ,  Chi Gao

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04B7/04 ,  H04L25/03

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.

Abstract translation: 本发明的实施例公开了一种用于发送数据的方法和装置，该方法包括：首先在至少一个第一资源组的每个第一资源组中设置至少两个第二资源组，并且在每个第一资源组中设置至少两个参考信号 的第二资源组; 然后对要发送的数据进行编码，并从编码数据生成两个数据流; 然后将两个数据流映射到两个不同天线端口的可用资源元素上，其中对应于两个不同天线端口的参考信号被设置在两个不同的第二资源组上; 最后，在两个不同天线端口的可用资源元件上发送两个天线端口上的数据。 本发明可应用于通信系统领域。

公开(公告)号：US20160087703A1

公开(公告)日：2016-03-24

申请号：US14951397

申请日：2015-11-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianghua Liu ,  Anahid Robert Safavi ,  Branislav Popovic

IPC: H04B7/04 ,  H04B7/06 ,  H04J13/00

CPC classification number: H04B7/0486 ,  H04B7/0621 ,  H04J13/00 ,  H04L5/0001 ,  H04L25/03942

Abstract: The invention concerns a method for precoding in an open loop transmission communications system. The method includes precoding data at each of M REs with a precoding matrix, precoding each of DM-RSs with one column of a precoding matrix which is same as that used for precoding M data REs. The method is distinguished by using at least L≧2 different precoding matrices from a set of precoding matrices W to precode the M REs and the E allocated REs such that REs precoded with a first precoding matrix are interleaved with REs precoded with at least one additional, different precoding matrix and the number of used precoding matrices L is adapted to the transmission rank r and number N of available DM-RS.

Abstract translation: 本发明涉及一种用于在开环传输通信系统中进行预编码的方法。 该方法包括使用预编码矩阵对每个M RE进行预编码，使用与预编码M个数据RE相同的预编码矩阵的一列对每个DM-RS进行预编码。 该方法的区别在于使用一组预编码矩阵W中的至少L≥2个不同的预编码矩阵来对M RE和E分配的RE进行预编码，使得用第一预编码矩阵预编码的RE与与至少一个附加的预编码的RE进行交织 ，不同的预编码矩阵和使用的预编码矩阵L的数量适合于可用DM-RS的传输等级r和数目N.