Patent ID: 8644413

Claim:
A method comprising: receiving multiple input multiple output (MIMO) radio frequency (RF) signals through M antennas coupled via N beamformers to a MIMO receiving system having N channels, wherein M>N; measuring channel fading rate at a baseband level; grading each one of K antennas of each one of the N beamformers based on their total data throughput coming from various data streams, wherein the total data throughput is represented by a total data throughput indicator (TDTI) derivable via a lookup table based on a channel quality indicator (CQI) criterion and measured signal to noise plus interference ratio (SINR); determining a number of antennas L to be combined out of the K antennas, based on the measured fading rate, wherein the subset of L antennas is based on the total data throughput grades of the K antennas; and repeatedly applying a tuning process to L antennas at each of the N beamformers.