Method and Apparatus for Preamble Reduction

摘要

A method of reducing resource overhead attributed to preambles in a communication system includes transmitting, at a transmitter, one or more signals including a first packet. The first packet is transmitted in a first time-frequency grant including a first set of one or more subcarriers. The first packet includes a full preamble including reference signal information for determining a total channel estimate for every subcarrier to be used in transmission of the first packet. A second packet is transmitted in a second time-frequency grant including a second set of one or more subcarriers without a full preamble when a receiver configured to communicate with the transmitter can determine a phase offset between the transmitter and the receiver from the signals received at the receiver.