Patent ID: 8023523
Filing Date: 2011-09-20
Classification: H04L

Abstract:
1. A method of allocating subcarriers to subchannels in a telecommunications system which transmits a plurality of subchannels using subcarriers, the method comprising: (a) defining a plurality of spatial channels each of which has a plurality of subchannels associated therewith; for each spatial channel: (b) allocating an initial subcarrier to each subchannel; (c) detecting respective quality measurements for the subchannels; (d) allocating a further subcarrier to each of the subchannels associated with the spatial channel, in an order determined by respective quality measurements of the subchannels, wherein allocating a subcarrier to a subchannel includes determining whether a subcarrier within a predetermined range of the allocated subcarrier has already been allocated to that subchannel for another of the spatial channels, and if such a subcarrier has been allocated to the same subchannel for another of the spatial channels, allocating a different subcarrier to the subchannel for the spatial channel concerned; and (e) repeating steps c) and d) until all subcarriers are allocated.