Patent Document ID: 20010053670
Application ID: 09813217
Patent Flag: 0

Claim One:
1. A method of controlling the power of inbound signals in a code division multiple access cellular telecommunication system comprising a plurality of base stations Bk serving respectively cells Ck and a plurality of mobile stations Mi, each mobile station Mi being served by at least one base station Bf(i), each uplink between a mobile station Mi and the base station Bf(i) being disturbed by noise comprising extracellular interference generated by the inbound signals of mobile stations situated outside the cell Cf(i) and intracellular interference generated by the inbound signals of mobile stations Mj, j≠i situated inside the cell Cf(i) said method being characterised by the following steps: for each base station Bk, initialization of the extracellular interference level Iextra_up,k to a predetermined value; for each mobile station Mi, calculation of the power level PtMi of the inbound signal allowing the uplink between said mobile station and the serving base station Bf(i) to guarantee a predetermined signal to noise ratio SNRi given the current extracellular interference level Iextra_up, f(i) of the cell Cf(i); for each base station Bk, evaluation of the extracellular interference level Iextra_up,k of the cell Ck according to the current power levels PtMi of the inbound signals transmitted by mobile stations situated outside the cell Ck; the steps (b) and (c) being iterated as long as the difference between two consecutive extracellular interference levels of any cell Ck exceeds a predetermined margin value.