Multi-beam co-channel Wi-Fi access point

摘要

A system and method for providing multi-beam Wi-Fi access points. The system includes one or more Wi-Fi transmit antennas beamformers; one or more Wi-Fi receive antennas or receive beamformers; and a number N of co-channel Wi-Fi access points (APs) and a number of M non co-channel APS, where all APs comply with IEEE802.11xx standard, connected to the Wi-Fi transmit antennas beamformers, wherein the Wi-Fi transmit antennas beamformers are configured to produce a plurality of non spatially adjacent beams of a common frequency, directed at a plurality of Wi-Fi user equipment (UE) such that the directional beams are sufficiently isolated from each other, and at least some of the Wi-Fi UEs communicate simultaneously with the plurality of Wi-Fi access points.

主权项

1. A system comprising:
one or more Wi-Fi transmit beamformers, each comprising a plurality of transmit antennas; one or more Wi-Fi receive beamformers, each comprising a plurality of receive antennas; and a number N of co-located co-channel Wi-Fi access points (APs), each of said Wi-Fi APs having Wi-Fi transmitters and receivers and connected to the Wi-Fi transmit beamformers and the Wi-Fi receive beamformers, wherein the Wi-Fi transmit beamformers and the Wi-Fi receive beamformers are configured to produce a plurality of directional beams of a common frequency, directed at a plurality of Wi-Fi user equipment (UE) devices such that the directional beams are sufficiently isolated from each other, so that at least some of the Wi-Fi UE devices communicate simultaneously with the plurality of Wi-Fi APS, wherein beam patterns of the transmit antennas exhibit contaminating transmit signals being an accumulated contribution of side lobes and back lobes, wherein the system further comprises amplitude/phase modules associated with said transmit antennas and null transmit module configured to receive a difference between signals received by said receive antenna and said contaminating transmit signals detected in the receiving circuitry and control said amplitude/phase modules so that transmit signal component in the receiver are reduced using accurate destructive interference manifested via closed loop.