METHOD FOR DYNAMICALLY ADJUSTING CHANNEL BANDWIDTH IN WIRELESS COMMUNICATIONS SYSTEMS

摘要

A method of reducing the usable channel bandwidth and increasing the channel bandwidth at run time is provided. The method allows a receiving wireless communications device to inform its corresponding transmitting communications device to either increase, reduce, or maintain the number of usable narrow band channels for the succeeding frame exchange. In a wireless communications channel, channel reduction is accomplished by using a usable channel indicator in a response frame responding to the preceding receiving frame. The usable channel indicator is the means for the receiving communications device to inform the transmitting communications device the preferred narrow band channels that it deems having good channel characteristics.

主权项

1. A method for dynamically adjusting a channel bandwidth in a wireless communications network, comprising:
transmitting a first frame with a first channel bandwidth to a wireless communications device, wherein the first channel comprises more than one narrow band channels, and wherein the first channel bandwidth is determined in accordance with channel rules of a wireless communication standard; receiving a usable channel indicator in a second frame which is a response frame with a second channel bandwidth from the wireless communications device, wherein the second channel comprises one or more narrow band channels; and transmitting a third frame following the response frame with a third channel bandwidth determined in accordance with the usable channel indicator.