Patent ID: 7681092
Filing Date: 2010-03-16
Classification: H04L

Abstract:
1. A base station that is configured to interleave coded data in an OFDMA-based system that uses a varying number of sub-carriers for channel transmission, comprising: an antenna for transmitting signals on a downlink to a plurality of user devices; a processor; memory in electronic communication with the processor; interleaving instructions stored in the memory, the interleaving instructions being executable by the processor to interleave coded data in accordance with an interleaving algorithm in order to generate interleaved data, wherein the interleaving algorithm is configured to accommodate use of different transmission bandwidths for data transmission; and OFDMA processing instructions stored in the memory, the OFDMA processing instructions being executable by the processor to perform OFDMA processing on the interleaved data, wherein the OFDMA processing facilitates the use of a varying number of sub-carriers for channel transmission so that different users that are transmitting at the same time are assigned different numbers of sub-carriers and so that the number of sub-carriers that are assigned to a particular user changes over time.