Patent ID: 6259686
Filing Date: 2001-07-10
Classification: H04J,H04W

Abstract:
A method of multiple access in a cellular radio communication network, the network allowing communications at different bit rates, with signals transmitted in successive frames each divided into elementary timeslots usable for different communications, comprising the steps of:allocating a frequency band to communications between base stations of a group of cells and mobile stations,a first partitioning step, wherein the allocated frequency band is partitioned into frequency blocks each having a block width equal to 2.sup.M-1.times.Bo where Bo is a predefined elementary spectral width and M is an integer greater than 1 chosen as a function of a specified maximum communication bit rate for the group of cells,a second partitioning step, wherein each of the blocks is partitioned into a number 2.sup.M-m(i) of carriers of spectral width 2.sup.m(i)-1.times.Bo, m (1) being an integer dependent on the block such that 1<m(i)<M and representing a type of carrier, wherein the partition of the blocks and of the carriers within the allocated frequency band is identical for all the cells of the group, andselecting and defining a logic channel depending on the bit rate of a communication, as one or more elementary timeslots on one of the carriers, in order to support said communication in one of the cells.