Patent ID: 8594215
Filing Date: 2013-11-26
Classification: H04B,H04L

Abstract:
1. A multiple-input and multiple-output (MIMO) system for data transmission, the system comprising: a plurality of service antennas, each service antenna configured to simultaneously serve a plurality of terminals, each service antenna configured to independently receive a pilot sequence from the plurality of terminals; a plurality of channel estimation units, each channel estimation unit being associated with a different one of the plurality of service antennas and configured to independently generate an antenna-specific channel estimate based on the received pilot sequence, the antenna-specific channel estimate being a channel estimate between the plurality of terminals and a respective one of the plurality of service antennas; and a plurality of pre-coding units, each pre-coding unit being associated with a different one of the plurality of channel estimation units and configured to receive a set of data symbols to be transmitted and a respective generated antenna-specific channel estimate, each pre-coding unit configured to independently generate a coded signal to be transmitted to the plurality of terminals via a respective service antenna based on the set of data symbols and the antenna-specific channel estimate.