METHOD AND APPARATUS FOR IFDMA RECEIVER ARCHITECTURE

摘要

A method and receiver for processing a composite signal in a wireless communication system is provided. The method includes receiving a composite signal within a channel bandwidth, wherein the composite signal comprises one or more symbol streams from a plurality of communication units. The method also includes sampling the composite signal at a sampling rate, wherein the sampling rate comprises one of equal to a symbol rate of the composite signal or larger than the symbol rate of the composite signal. In addition, the method includes selecting a symbol sampling phase for each of the symbol streams from a plurality of communication units. The symbol streams from each of the communication units are aligned to produce an aligned composite signal by separating the symbol streams for each of the plurality of communication units and orthogonal recombining the symbol streams for each of the plurality of communication units based on the selected symbol sampling phase for each of the plurality of signals. The symbol streams are also separated based on the aligned composite signal.

主权项

1. A method comprising:
receiving a composite signal within a channel bandwidth, wherein the composite signal comprises one or more symbol streams from a plurality of communication units; sampling the composite signal at a sampling rate, wherein the sampling rate is equal to or larger than a symbol rate of the composite signal; selecting a composite signal sampling phase for the composite signal; determining a channel estimate of the one or more symbol streams of the signal for at least a subset of the plurality of communication units at the selected sampling phase; and separating the one or more symbol streams from each of the communication units in the at least subset of the plurality of communication units based on one or more of the composite signal, the channel estimates, differing frequency components for the one or more communication units, the selected sampling phase for the composite signal and equalizing the signals of the composite signal using the channel estimates.