Dynamic bandwidth control in interference situations

摘要

When a wireless communications device intends to communicate with another device over a wide channel consisting of multiple narrow channels, but detects interference on one or more of those narrow channels, it may restrict subsequent communications with that other device to those narrow channels that don't suffer from the interference. In one embodiment the device may simply refuse to monitor the interfering channel(s) for signals for a particular period of time. In another embodiment the device may use a CTS to signal the other device not to use the interfering narrow channel(s). That may result in using a wide channel with a reduced bandwidth for communications.

主权项

1. A method, comprising:
detecting, by a device comprising one or more processors, a potentially interfering signal on a particular one of a plurality of narrow channels of a first wide channel; transmitting, by the device, a clear-to-send (CTS) to a network controller, wherein the CTS indicates a second wide channel to use for a subsequent communication, and wherein a plurality of narrow channels of the second wide channel are a subset of the plurality of narrow channels of the first wide channel and excludes the particular one of the plurality of narrow channels; and communicating, by the device, with the network controller via the second wide channel.