RADIO WITH ASYMMETRICAL DIRECTIONAL ANTENNA SUB-ARRAYS

摘要

An intelligent backhaul radio that has an advanced antenna system for use in PTP or PMP topologies. The antenna system provides a significant diversity benefit. Antenna configurations are disclosed that provide for increased transmitter to receiver isolation, adaptive polarization and MIMO transmission equalization. Adaptive optimization of transmission parameters based upon side information provided in the form of metric feedback from a far end receiver utilizing the antenna system is also disclosed.

主权项

1. A radio comprising:
one or more demodulator cores, wherein each demodulator core is configured to demodulate at least one receive symbol stream; a plurality of receive radio frequency (RF) chains, wherein each receive RF chain is configured to convert from a receive RF signal within a receive frequency band to a receive chain output signal; one or more modulator cores, wherein each modulator core is configured to produce at least one transmit symbol stream; a plurality of transmit radio frequency (RF) chains, wherein each transmit RF chain is configured to convert from a transmit chain input signal to a transmit RF signal within a transmit frequency band; and a plurality of directional antenna arrays, wherein each directional antenna array comprises a plurality of directional antenna sub-arrays, and wherein each directional antenna sub-array comprises a plurality of directional antenna elements; wherein at least one of the plurality of directional antenna arrays comprises at least one first directional antenna sub-array, said first directional antenna sub-array comprising a first number of directional antenna elements, and at least one second directional antenna sub-array, said second directional antenna sub-array comprising a second number of directional antenna elements, and wherein the first number is different than the second number.