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Research on non-codebook precoding for LTE uplink
Zhu Zhehui #,ZHANG Yangan *
School of Information Photonics and Optical Communications , Beijing University of Posts and Telecommunications, Beijing 100876
*Correspondence author
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Funding: none
Opened online: 6 December 2011
Accepted by: none
Citation: Zhu Zhehui,ZHANG Yangan.Research on non-codebook precoding for LTE uplink[OL]. [ 6 December 2011] http://en.paper.edu.cn/en_releasepaper/content/4449771
 
 
In order to meet the needing of LTE uplink in high speed data rate and high system capacity,spatial multiplex technology is introduced in the uplink transmission. However, the interference between users in MIMO system which used spatial multiplex technology will inevitably affect the system performance to some extent. To ensure the receiving can demodulate each data stream accurately, pre-coding techniques can be used for processing multiple data streams.In this paper ，pre-coding based on non-codebook is researched, including the basic process，the design of pilot frequency and the major resistance to achieve non-codebook: antenna calibration. Three solutions are proposed for this problem, and analysis aimed to measure the performance advantages and disadvantages of these solutions are thoroughly carried out.
Keywords:LTE; non-codebook; precoding
 
 
 

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