Which technology listens to clients on both horizontal and vertical planes to determine the best signal to use for each client?

PD-MRC, or Polarization Diversity-Maximal Ratio Combining, is a patented RUCKUS technology that utilizes dual-polarized antennas. These antennas are sensitive to radio waves in both horizontal and vertical orientations (planes). The access point (AP) constantly listens on both polarizations and combines the received signals. This allows the AP to mitigate the negative effects of signal fading and polarity mismatch, which is common with mobile clients that constantly change their orientation. By selecting the best-polarized signal or combining them, PD-MRC ensures the most reliable connection for each client.

B. SmartCast: This is a Quality of Service (QoS) technology that prioritizes different types of traffic (e.g., voice, video) over general data, not a signal reception technology based on antenna planes.

C. ChannelFly: This is a dynamic channel management technology that assesses all available Wi-Fi channels and selects the one with the highest potential throughput, rather than listening on different signal planes.

D. Tx Beamforming: This is a signal transmission technique that focuses RF energy directly toward a specific client, rather than a reception technique that listens on different planes.

1. RUCKUS Networks, "BeamFlex+™: The Next Generation of Ruckus Adaptive Antenna Technology" White Paper.

Page 3, Section "Polarization Diversity": "Ruckus APs incorporate patented dual-polarized smart antennas that are capable of selecting the best-performing antenna pattern and polarization for any given client... PD-MRC (Polarization Diversity Maximal Ratio Combining) technology leverages these dual-polarized antennas, which allows the AP to receive signals on two distinct polarizations simultaneously."

2. RUCKUS Networks, "RUCKUS R750 Wi-Fi 6 Access Point" Data Sheet.

Page 2, Section "Benefits," under "Converged Access Point": "Patented RUCKUS antenna optimization and interference mitigation technologies improve throughput, reliability and deliver industry-leading Wi-Fi 6 performance to every connected client. This includes PD-MRC (Polarization-Diversity Maximal-Ratio-Combining)."

3. RUCKUS Networks, "RUCKUS Wireless Technology Portfolio" Brochure.

Page 4, Section "PD-MRC (Polarization Diversity)": "PD-MRC is a custom RUCKUS technology that maximizes the receive signal-to-noise ratio from mobile devices... RUCKUS APs use a dual-polarized antenna array to listen to incoming signals on both a horizontal and vertical plane."