Discussion of 3GPP LTE MIMO Signal Detecting Algorithms Based on QR Decomposition

Today, high speed broadband wireless access has become a hotspot of research and application, LTE is a representative of it, and MIMO is one of key technologies of LTE. However, the MIMO signal detecting algorithms are indispensable process in LTE system design. In this paper, we analyze the architecture of LTE MIMO receiver according to 3GPP LTE draft, especially the MIMO detecting algorithm on decoding module, and give the detailed principles of QR decomposition applied in the detecting algorithms of other communication system, analyze the feasibility of the application of QR decomposition in LTE MIMO, give the simulation results analysis.