Patent ID: 8379752

Claim:
A method for generating synchronization and pilot sequences for multiple antennas of a multiple-antenna transmit system in which signals are communicated across a frequency range that includes one or more sets of consecutive null subcarriers and a set of in-band subcarriers that is adjacent to the one or more sets of consecutive null subcarriers, the method comprising the steps of: determining, for a first antenna of the multiple antennas, a set of first pilot subcarriers for a plurality of pilot signals, wherein the first pilot subcarriers are positioned at subcarriers that are orthogonal in frequency with subcarriers at which pilot signals of other antennas of the multiple antennas are positioned, and the first pilot subcarriers are unevenly spaced across the in-band subcarriers; specifying a first frequency domain power profile for a first set of synchronization and pilot sequences to be utilized in conjunction with the first antenna, wherein the first frequency domain power profile has non-zero power for the first pilot subcarriers; and generating the first set of the synchronization and pilot sequences using the first frequency domain power profile.