公开(公告)号：US10560170B2

公开(公告)日：2020-02-11

申请号：US16068748

申请日：2017-02-10

Applicant: ZTE CORPORATION

Inventor： Hao Wu ,  Yijian Chen ,  Jianxing Cai ,  Huahua Xiao ,  Yu Ngok Li ,  Zhaohua Lu ,  Yong Li ,  Yuxin Wang

IPC: H04B7/06

Abstract: Provided are a method for channel information feedback in a multi-antenna system, and a terminal. The method comprises: a terminal receives CSI-RSs of M ports sent by a base station, and performs estimation according to the CSI-RSs to obtain M-dimensional downlink channel information; the terminal uses a transformation function Fk to perform a linear transformation on the M-dimensional downlink channel information, and obtains Nk-dimensional kth type channels, wherein k is greater than or equal to 1 and less than or equal to K, M≥Nk, and K≥1; the terminal uses a preset Nk-dimensional codebook to respectively perform channel information quantisation on the kth type channels, and determines a corresponding precoding matrix and precoding matrix indicator information (PMIk); the terminal selects S type channels from within K type channels, and feeds index numbers of the selected channels and corresponding PMI back to the base station.

公开(公告)号：US10547424B2

公开(公告)日：2020-01-28

申请号：US15774071

申请日：2016-10-24

Applicant: ZTE CORPORATION

Inventor： Yong Li ,  Yu Ngok Li ,  Yijian Chen ,  Zhaohua Lu ,  Jianxing Cai ,  Hao Wu ,  Huahua Xiao

IPC: H04L5/00

Abstract: The embodiments of the invention provide a method of configuring a channel state information reference signal (CSI-RS) transmitted on a pilot and a device utilizing the same. The method includes: a base station generates a signaling including configuration information of a CSI-RS; and the base station transmits the signaling including the configuration information of the CSI-RS; wherein the configuration information includes a CSI-RS port number, CSI-RS resource patterns and a CSI-RS subframe configuration; the CSI-RS resource patterns include at least one of the following: CSI-RS resource patterns transmitted on a normal downlink subframe and CSI-RS resource patterns transmitted on a downlink pilot time slot (DwPTS). The CSI-RS subframe configuration includes a CSI-RS subframe configuration transmitted on both the DwPTS and the normal downlink subframe. The embodiments resolve a complicated problem of transmitting CSI-RS in DwPTS in a CSI-RS transmission scenario, reducing complexity of transmitting CSI-RS in DwPTS.

公开(公告)号：US20190068252A1

公开(公告)日：2019-02-28

申请号：US16075320

申请日：2017-01-23

Applicant: ZTE CORPORATION

Inventor： Yijian Chen ,  Yu Ngok Li ,  Zhaohua Lu ,  Huahua Xiao ,  Jianxing Cai ,  Hao Wu ,  Yong Li

IPC: H04B7/0417 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0456 ,  H04L5/14

Abstract: Embodiments of the present invention provide a method and device for reducing complexity of channel quantization. The method comprises: determining, on the basis of whether a measurement feedback parameter configured by a channel state information (CSI) process satisfies a predetermined condition, a CSI report time-domain position and a time interval requirement parameter Nrpt-ref for a CSI reference resource time-domain position, or determining a CSI trigger time-domain position and a time interval requirement parameter Nrpt-ref for a CSI reference resource time-domain position; determining, according to the determined time interval requirement parameter Nrpt-ref and the CSI report time-domain position, the CSI reference resource time-domain position, or determining, according to the determined time interval requirement parameter Nrpt-ref and the CSI trigger time-domain position, the CSI reference resource time-domain position; and performing CSI quantization according to the determined CSI reference resource time-domain position.

公开(公告)号：US20150249528A1

公开(公告)日：2015-09-03

申请号：US14430608

申请日：2013-08-05

Applicant: ZTE CORPORATION

Inventor： Yijian Chen ,  Bo Dai ,  Zhisong Zuo ,  Jing Shi ,  Yong Li

IPC: H04L5/00 ,  H04W88/08 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04L5/0048 ,  H04W24/10 ,  H04W72/042 ,  H04W88/08

Abstract: A method and device for detecting control signaling and a method and device for implementing control signaling detection are provided, wherein blind detection times or the amount of enhanced Physical Downlink Control Channels (ePDCCH) allocated by each ePDCCH resource set is determined, so that the ePDCCH needed to be detected in each ePDCCH resource set can be determined.

Abstract translation: 提供一种用于检测控制信令的方法和装置，以及用于实现控制信令检测的方法和装置，其中确定由每个ePDCCH资源集分配的盲检测时间或增强的物理下行链路控制信道（ePDCCH）的量，使得ePDCCH 可以确定在每个ePDCCH资源集合中需要检测的数据。