Patent ID: 7991373

Claim:
A signal filtering system for a frequency reuse system comprising: a downlink baseband signal comprising a composite received signal comprising at least an interfering signal and a signal of interest, the composite received signal having a composite bandwidth, the interfering signal having a first bandwidth, and the signal of interest having a second bandwidth, and the downlink baseband signal coupled with a downlink bandwidth filter; an uplink baseband signal comprising a replica of the interfering signal comprising a interference bandwidth and corresponding with the interfering signal, the uplink baseband signal coupled to a uplink bandwidth filter; and a baseband processing module coupled with the downlink bandwidth filter and the uplink bandwidth filter, the baseband processing module configured to cancel the interfering signal from the composite received signal using the replica of the interfering signal; wherein the downlink bandwidth filter is configured to reduce the composite bandwidth of the composite received signal and the uplink bandwidth filter is configured to reduce the interference bandwidth of the replica of the interfering signal; and wherein an impulse response of the downlink bandwidth filter and an impulse response of the uplink bandwidth filter are the same.