Hanqing Xu
ZTE
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Publication
Featured researches published by Hanqing Xu.
global communications conference | 2012
Hanqing Xu; Yajun Zhao; Linmei Mo; Chen Huang; Baoyu Sun
In this work the modeling and calibration method of reciprocity error in a coherent TDD coordinated multi-point (CoMP) joint transmission (JT) system are addressed. The modeling includes parameters such as amplitude gains and phase differences of RF chains between the eNBs. The calibration method used for inter-cell antenna calibration is based on precoding matrix indicator (PMI) feedback by UE. Furthermore, we provide some simulation results for evaluating the performance of the calibration method in different cases such as varying estimation-period, cell-specific reference signals (CRS) ports configuration, signal to noise ratio (SNR), phase difference, etc. The main conclusion is that the proposed method for inter-cell antenna calibration has good performance for estimating the residual phase difference.
Archive | 2013
Yajun Zhao; Linmei Mo; Chen Huang; Hanqing Xu; Yujie Li; Baoyu Sun; Qian Wang; Yunfeng Sun
Archive | 2015
Linmei Mo; Yajun Zhao; Hanqing Xu
Archive | 2013
Chen Huang; Yajun Zhao; Linmei Mo; Hanqing Xu; Baoyu Sun; Yujie Li; Hongfeng Qin; Guofeng Chen; Hongfeng Yuan; Xin Zhang
Archive | 2014
Linmei Mo; Yajun Zhao; Hanqing Xu; Yonghong Gao; Aijun Cao
Archive | 2014
Yajun Zhao; Linmei Mo; Hanqing Xu
Archive | 2014
Hanqing Xu; Yajun Zhao; Linmei Mo; Yonghong Gao; Aijun Cao
Archive | 2013
Hanqing Xu; Yajun Zhao; Linmei Mo; Chen Huang; Yujie Li; Baoyu Sun; Guofeng Chen; Hongfeng Qin
Archive | 2017
Baoyu Sun; Cunlei Bi; Fan Shi; Hanqing Xu; Hongfeng Qin; Linmei Mo; Qian Wang; Yajun Zhao; Yujie Li; Yunfeng Sun
Archive | 2014
Hanqing Xu; Yajun Zhao; Linmei Mo
