Downlink beamforming algorithm based on the uplink parameters in TD-SCDMA system
LI Shi-he · Journal of China Institute of Communications · 2002
In the TD-SCDMA system, we employ sending beamforming at the base station to improve the performance of the downlink. Take the optimal criterion-maximal SINR algorithm based on eigenvalue decomposition as an example, we analyze the basic theory of the downlink beamfoming which is based on uplink parameters. Then given some wireless environment, we simulate the performance of the beamforming algorithm in the downlink system and compare it with the omni-directional occasion. In the end, we give some conclusion.