Patent ID: 8774722

Claim:
A wireless communications system, comprising: a first wireless communications module configured to transmit or receive a first wireless signal in a first frequency band selected from a first frequency range; and a second wireless communications module configured to transmit or receive a second wireless signal in a second frequency band selected from a second frequency range which overlaps at least in part with the first frequency range; wherein the first wireless communications module is further configured to determine an in-band range in the overlapping part of the first and second frequency ranges, wherein the in-band range corresponds to a frequency range where a received first wireless signal and a received second wireless signal experience in-band interference caused by a transmitted second wireless signal and a transmitted first wireless signal, respectively; and wherein the second wireless communications module is further configured to determine whether a frequency offset between the first frequency band and the second frequency band falls within the in-band range, and adjust a transmission power of the second wireless signal in response to the frequency offset falling within the in-band range.