US Patent Application 18219958. Switching Scheme for Opting In and Out of Multi-User Orthogonal Frequency-Division Multiple Access simplified abstract

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Switching Scheme for Opting In and Out of Multi-User Orthogonal Frequency-Division Multiple Access

Organization Name

Google LLC


Inventor(s)

Ahmed Ibrahim Elarabawy of San Diego CA (US)

Ning Zhang of Saratoga CA (US)

Kai Shi of San Jose CA (US)

Switching Scheme for Opting In and Out of Multi-User Orthogonal Frequency-Division Multiple Access - A simplified explanation of the abstract

This abstract first appeared for US patent application 18219958 titled 'Switching Scheme for Opting In and Out of Multi-User Orthogonal Frequency-Division Multiple Access

Simplified Explanation

The patent application describes a method for switching between multi-user and single-user modes in a wireless network.

  • The electronic device enters the multi-user mode to communicate over a shared-channel bandwidth.
  • If the uplink-queue size exceeds a certain threshold, the device switches to the single-user mode.
  • In the single-user mode, the device contends for a transmit channel to send uplink data.


Original Abstract Submitted

This document describes methods, devices, systems, and means for a switching scheme for opting in and out of multi-user orthogonal frequency-division multiple access (MU-OFDMA). In one aspect, an electronic device enters the MU-OFDMA mode to communicate via a wireless network over a shared-channel bandwidth. During the MU-OFDMA mode, the electronic device determines that an uplink-queue size is greater than a first threshold size. Responsive to the determining, the electronic device opts out of the MU-OFDMA mode and enters a single-user mode to contend for a transmit channel for transmitting uplink data.