Patent ID: 8111763
Filing Date: 2012-02-07
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method of transmitting comprising: defining a first plurality of OFDM symbols to contain a plurality of clusters, each cluster comprising a plurality of sub-carriers over a plurality of OFDM symbol durations; spreading at least one of data and pilots within each cluster using code division multiplexing (CDM); transmitting the first plurality of OFDM symbols from a first transmit antenna, further comprising for each of at least one additional transmit antenna: defining a respective plurality of OFDM symbols to contain a plurality of clusters, each cluster comprising a plurality of sub-carriers over a plurality of OFDM symbol durations; spreading at least one of data and pilots within each cluster using a respective code division multiplexing (CDM) code; transmitting the respective plurality of OFDM symbols from the additional transmit antenna.