METHOD AND APPARATUS FOR DATA TRANSMISSION USING MULTIPLE TRANSMIT ANTENNAS

摘要

A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas is disclosed. A set of bits of a digital signal are used to generate a codeword (106). Codewords are provided according to a channel code. Delay elements (110) may be provided in antenna output channels, or, with suitable code construction, delay may be omitted. n signals representing n symbols of a codeword are transmitted with n differen t transmit antennas. At the receiver MLSE (310) or other decoding is used to decode the noisy received sequence. The parallel transmission and channel coding enables an increase in the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenate d with error correction codes under appropriate conditions.