The quality of the signal from a base station is measured and adjusted for distortion due to multipath and due to signals from neighboring co-channel base stations. The signal quality is measured conventionally by determining Rho or EVM and then Rho or EVM are adjusted. To adjust the signal the process...http://www.google.com/patents/US8169993?utm_source=gb-gplus-sharePatent US8169993 - Method and apparatus to estimate wireless base station signal quality over the air
