Patent ID: 7212564
Filing Date: 2007-05-01
Classification: H04B,H04L,H04W

Abstract:
1. A method of allocating tones in a multi-tone communication system, the system including a plurality of communications devices with overlapping transmission areas, the method comprising: operating a first communications device to allocate each tone in a first set of P tones to one of a first set of P tone hopping sequences according to a first function, each of the first set of P tones being allocated according to said first function to a different one of the P tone hoping sequences during each of a first set of P sequential tone allocation periods; repeating said step of operating a first communications device to allocate each tone in said first set of P tones, such that tones in the first set of P tones are allocated to said first set of P hopping sequences in a pattern that repeats after said first plurality of P tone allocation periods; and operating the first communications device to allocate multiple ones of said hopping sequences to a communications channel used for communication with another communications device according to a third function such that the communications channel includes multiple tones at the same time, the multiple tones corresponding to different hopping sequences.