Patent ID: 9048894
Filing Date: 2015-06-02
Classification: H04B

Abstract:
1. A method comprising: communicating a beam-training message that initiates a multiple input and multiple output (MIMO) training procedure in a wireless network; transmitting training packets using all TX sectors during TX sector sweeping and in response obtaining a set of selected TX sectors, wherein each of the TX sectors corresponds to a specific TX antenna beam; transmitting training packets using omni-direction antenna pattern during RX sector sweeping and in response obtaining a set of selected RX sectors, wherein each of the RX sectors corresponds to a specific RX antenna beam; starting MIMO beam combination training based on the selected TX and RX sectors by transmitting training packets using the selected TX sectors, wherein each MIMO beam combination includes one of the selected TX sectors and one of the selected RX sectors; and obtaining one or more best MIMO beam combinations for multiple MIMO spatial streams, wherein each of the best MIMO beam combinations is selected based on the results of the MIMO beam combination training.