Multi-user large-scale MIMO channel estimation method and device
A channel estimation, large-scale technology, applied in channel estimation, diversity/multi-antenna systems, space transmit diversity and other directions, can solve the problems of a large amount of calculation overhead of weight coefficients, high message update complexity, affecting algorithm performance, etc., to improve the potential The effect of channel capacity, CSI estimation accuracy improvement, and low computational overhead
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[0035] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.
[0036] For channel state information acquisition under MIMO systems, traditional channel estimation methods always try to find a balance between complexity and estimation accuracy, but they cannot break through the performance limitations of MMSE and cannot balance estimation accuracy and complexity well. Especially in massive MIMO communication scenarios, a large number of antennas increases the complexity of these estimation algorithms exponentially. However, these computational overheads are unacceptable for many low-latency application scenarios. Aiming at such problems, the present invention proposes a new low-complexity and high-precision channel estimation method, starting from the beam domain space model of channel state information, and turning the channel estimation problem into a two-parameter continuous estimation problem, breaking through ...
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