Patent ID: 8027367

Claim:
A communication method employed by a transmitter in an Orthogonal Frequency Division Multiple Access (OFDMA) system, the method comprising: receiving information characterizing a first channel condition related to modulation and coding schemes (MCSs) and a second channel condition related to training pilot patterns for a telecommunications channel; selecting, from a plurality of predetermined combinations of MCSs and training pilot patterns, a combination of an MCS and training pilot pattern for a transmission signal based on the received information characterizing the first and second channel conditions for the telecommunications channel, wherein: the training pilot pattern represents a number of training pilot symbols, amplitudes and phases of the training pilot symbols, and locations of the training pilot symbols in time, frequency, or space; the number of training pilot patterns varies with the associated MCS; and at least one MCS has multiple training pilot patterns associated with it; and transmitting the transmission signal in accordance with the selected MCS and training pilot pattern.