Apparatus and method for mitigation of receive power imbalance on equalizer performance

摘要

An apparatus and method for mitigation of receive power imbalance including estimating input power levels on two diversity receive branches in a receiver; computing a power imbalance between the two diversity receive branches and determining a weaker receive branch; setting a weakRX parameter based on the weaker receive branch; computing an intercept parameter c0 for a switching curve based on the weakRX parameter; computing a threshold T based on the intercept parameter; and determining a switching decision for the receiver based on the threshold T.

主权项

1. A method for mitigation of receive power imbalance comprising:
estimating received power levels on a first diversity receive branch and a second diversity receive branch in a receiver; updating filter states of the first diversity receive branch and the second diversity receive branch based on estimated received power levels and current filter states; determining a threshold T based on a power imbalance between the first diversity receive branch and the second diversity receive branch; determining the power imbalance between the first diversity receive branch and the second diversity receive branch based on updated filtered received power levels on the first diversity receive branch and the second diversity receive branch; determining a weaker receive branch, wherein the weaker receive branch has lower updated filtered received power levels between the first diversity receive branch and the second diversity receive branch; determining an intercept parameter for a switching curve, wherein the intercept parameter for the switching curve is indicative of updated filtered received power levels of the second diversity receive branch if the first diversity receive branch is the weaker receive branch; and determining a switching decision for the receiver based on the threshold T.