Patent ID: 7944995

Claim:
A receiver for receiving OFDM signals, comprising: plural receiver branches for receiving a first bandwidth signal communicated in accordance with an OFDM access scheme and dividing the first bandwidth OFDM signal into multiple overlapping frequency subbands, each receiver branch including a filter for passing OFDM signals in a different one of the overlapping frequency subbands corresponding to a second bandwidth less than the first bandwidth and an analog-to-digital converter for converting the passed OFDM signal into a digital OFDM signal, and control circuitry for digitally combining the digital OFDM signals from two or more of the plural receiver branches to produce a received OFDM signal having a bandwidth substantially wider than the second bandwidth, wherein the control circuitry is configured to combine the digital OFDM signals from two or more of the receiver branches having adjacent corresponding frequency subbands without requiring a guard band being between adjacent ones of the corresponding frequency subbands.