The business drivers for tying MIMO beamforming to TD-LTE are a function of TD-LTE’s initial markets. Both China and India are planning to deploy TD-LTE on a staggering scale; to give one reference point, a Chinese TD-LTE trial includes planned deployment of over 200,000 TD-LTE base stations by the end of 2013. These countries must optimize coverage due to pockets of incredibly high subscriber density. While much of the initial focus for TD-LTE is on Asia, the technology will be adopted worldwide by operators with unpaired spectrum (WiMAX and TD-SCDMA) who are looking to get in on the growing LTE ecosystem.
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