公开(公告)号：US20170230219A1

公开(公告)日：2017-08-10

申请号：US15519311

申请日：2015-05-15

Applicant: ZTE Corporation

Inventor： Hongfeng Qin ,  Gaocai Xiong ,  Dengsheng Lin

IPC: H04L27/26 ,  H04W72/04 ,  H04B7/0456

CPC classification number: H04L27/2613 ,  H04B7/0456 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/0248 ,  H04L25/03993 ,  H04L27/2607 ,  H04L27/2628 ,  H04L27/265 ,  H04W72/0413 ,  H04W84/042

Abstract: A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in a received signal of each antenna, and then, calculating a channel gain hl,k of each receiving antenna; combining the baseband signals and the channel gains of the M receiving antennas to obtain a signal matrix Yk and a gain matrix Hk; calculating an interference noise covariance matrix Rk on each subcarrier; conducting interference pre-processing on a received signal on each combined subcarrier to obtain the received signal (1) and the channel gain (2) after the interference pre-processing, where D=Rk−1/2; and according to (3), conducting frequency-domain balancing on the received signal after the interference pre-processing.

公开(公告)号：US10129063B2

公开(公告)日：2018-11-13

申请号：US15519311

申请日：2015-05-15

Applicant: ZTE Corporation

Inventor： Hongfeng Qin ,  Gaocai Xiong ,  Dengsheng Lin

IPC: H04L27/26 ,  H04B7/0456 ,  H04W72/04 ,  H04W84/04

Abstract: A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in a received signal of each antenna, and then, calculating a channel gain hl,k of each receiving antenna; combining the baseband signals and the channel gains of the M receiving antennas to obtain a signal matrix Yk and a gain matrix Hk; calculating an interference noise covariance matrix Rk on each subcarrier; conducting interference pre-processing on a received signal on each combined subcarrier to obtain the received signal (1) and the channel gain (2) after the interference pre-processing, where D=Rk−1/2; and according to (3), conducting frequency-domain balancing on the received signal after the interference pre-processing.