公开(公告)号：US10298305B2

公开(公告)日：2019-05-21

申请号：US15242207

申请日：2016-08-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kin Nang Lau ,  Xiongbin Rao ,  Rongdao Yu

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: Embodiments of the present invention provide a channel state information (CSI) feedback method and apparatus, user equipment, and a base station. The method, performed by a user equipment device, includes: pre-synchronizing, between the user equipment device and a base station, a basis matrix that includes sparsity of CSI in a frequency domain and a space domain; receiving pilot information from the base station; determining, according to the pilot information, a CSI information matrix that includes information about the frequency domain and the space domain of CSI; determining the data by using the CSI information matrix; and feeding back the data to the base station, so that the base station restores the corresponding CSI information from the data by using the basis matrix.

公开(公告)号：US10057799B2

公开(公告)日：2018-08-21

申请号：US15338141

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongbin Rao ,  Kin Nang Lau ,  Xiangming Kong

IPC: H04L12/26 ,  H04W24/08 ,  H04W40/12 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0417 ,  H04B17/309 ,  H04W88/08

CPC classification number: H04W24/08 ,  H04B7/0421 ,  H04B17/309 ,  H04L5/0048 ,  H04W40/12 ,  H04W72/042 ,  H04W88/08

Abstract: The present invention provides a channel measurement method, a channel measurement apparatus, user equipment. A wireless communications system includes a channel measurement apparatus and at least two user equipments. The method includes: sending, by the channel measurement apparatus, an antenna domain training sequence to the at least two user equipments; receiving, by the channel measurement apparatus, channel response measurement sequences sent by the at least two user equipments, where the channel response measurement sequences are sequences that are obtained after the antenna domain training sequence passes through channels and that are received by the at least two user equipments; and performing, by the channel measurement apparatus, joint processing on the received channel response measurement sequences of the at least two user equipments to obtain downlink channel state information CSIT.

公开(公告)号：US20170048735A1

公开(公告)日：2017-02-16

申请号：US15338141

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiongbin Rao ,  Kin Nang Lau ,  Xiangming Kong

IPC: H04W24/08 ,  H04W72/04 ,  H04W40/12

CPC classification number: H04W24/08 ,  H04B7/0421 ,  H04B17/309 ,  H04L5/0048 ,  H04W40/12 ,  H04W72/042 ,  H04W88/08

Abstract: The present invention provides a channel measurement method, a channel measurement apparatus, user equipment. A wireless communications system includes a channel measurement apparatus and at least two user equipments. The method includes: sending, by the channel measurement apparatus, an antenna domain training sequence to the at least two user equipments; receiving, by the channel measurement apparatus, channel response measurement sequences sent by the at least two user equipments, where the channel response measurement sequences are sequences that are obtained after the antenna domain training sequence passes through channels and that are received by the at least two user equipments; and performing, by the channel measurement apparatus, joint processing on the received channel response measurement sequences of the at least two user equipments to obtain downlink channel state information CSIT.

Abstract translation: 本发明提供一种信道测量方法，信道测量装置，用户设备。 无线通信系统包括信道测量装置和至少两个用户设备。 该方法包括：由信道测量装置向至少两个用户设备发送天线域训练序列; 由信道测量装置接收由至少两个用户设备发送的信道响应测量序列，其中信道响应测量序列是在天线域训练序列经过信道之后获得并且由至少两个用户设备接收的序列 用户设备; 并且由所述信道测量装置执行对所述至少两个用户设备的所接收的信道响应测量序列的联合处理，以获得下行链路信道状态信息CSIT。