Channel estimation and spatial processing for a TDD MIMO system. Calibration may be performed to account for differences in the responses of transmit/receive chains at the access point and user terminal. During normal operation, a MIMO pilot is transmitted on a first link and used to derive an estimate...http://www.google.fr/patents/US7653142?utm_source=gb-gplus-shareBrevet US7653142 - Channel estimation and spatial processing for TDD MIMO systems
Channel estimation and spatial processing for TDD MIMO systems
