Multipath filtering for wireless RF signals

A method for communicating wireless signals with a plurality of user devices (UE), wherein one or more processors execute instructions to perform actions, comprising:

• employing a downlink detector component to perform further actions, including:
• monitoring downlink wireless radio frequency (RF) signals communicated by a base station to identify each UE that is communicating uplink wireless RF signals with the base station;
• and
• employing an antenna component to perform actions, including:
• employing one or more pairs of antennas to monitor uplink wireless signals communicated by each identified UE to the base station;
• and
• providing sampled data representing the monitored uplink wireless RF signals, wherein the sampled data includes a first portion representing direct path uplink wireless RF signals and a second portion representing multipath uplink wireless RF signals;
• and
• employing a filter component to perform further actions, including:
• generating a shifted version of the sampled data, wherein a shifting of the sampled data is based on a phase of the monitored uplink wireless RF signals;
• generating a cross correlated matrix based on the sampled data;
• generating another cross correlated matrix based on the shifted version of the sampled data;
• and
• filtering the sampled data by a comparison of the cross correlated matrix to the other cross correlated matrix to extract the first portion of the sampled data representing direct path uplink wireless RF signals and cancel the second portion of the sampled data representing multipath uplink wireless RF signals;
• and
• wherein the antenna component employs the extracted first portion of the sampled data to determine an angular location of each identified UE that includes an azimuth and an elevation, and wherein the determined angular location of an identified UE is employed to arrange a beam antenna to generate a beam directed at the identified UE, and wherein the beam communicates downlink wireless RF signals transmitted by the base station to the identified UE.

A system for communicating wireless signals with a plurality of user devices (UE) over a network, comprising:

• a downlink detector component that performs actions, including:
• monitoring downlink wireless radio frequency (RF) signals communicated by a base station to identify each UE that is communicating uplink wireless RF signals with the base station;
• and
• an antenna component that performs actions, including:
• employing one or more pairs of antennas to monitor uplink wireless signals communicated by each identified UE to the base station;
• and
• providing sampled data representing the monitored uplink wireless RF signals, wherein the sampled data includes a first portion representing direct path uplink wireless RF signals and a second portion representing multipath uplink wireless RF signals;
• and
• a network computer, including:
• a memory for storing instructions;
• and
• one or more processors that execute the instructions to perform actions, comprising:
• employing a filter component to perform further actions, including:
• generating a shifted version of the sampled data, wherein a shifting of the sampled data is based on a phase of the monitored uplink wireless RF signals;
• generating a cross correlated matrix based on the sampled data;
• generating another cross correlated matrix based on the shifted version of the sampled data;
• and
• filtering the sampled data by a comparison of the cross correlated matrix to the other cross correlated matrix to extract the first portion of the sampled data representing direct path uplink wireless RF signals and cancel the second portion of the sampled data representing multipath uplink wireless RF signals;
• and
• employing the extracted first portion of the sampled data to determine an angular location of each identified UE that includes an azimuth and an elevation;
• and
• employing the determined angular location of an identified UE to arrange a beam antenna to generate a beam directed at the identified UE, and wherein the beam communicates downlink wireless RF signals transmitted by the base station to the identified UE.