Patent ID: 9178738
Filing Date: 2015-11-03
Classification: H04L

Abstract:
1. A method of operating a receiver to receive data conveyed on an Orthogonal Frequency Division Multiplexed (OFDM) signal transmitted on a plurality of sub-carriers, wherein each of the sub-carriers conveys a respective data stream, the method comprising: using one or more criteria to ascertain a reduced set of sub-carriers from the plurality of sub-carriers by not including one or more of the sub-carriers that do not have a channel quality that is sufficiently good such that full data stream processing will be performed; not performing channel estimation on the data streams from sub-carriers that are not included within the reduced set of sub-carriers and not performing equalization on the data streams from sub-carriers that are not included within the reduced set of sub-carriers; and performing at least one of sub-carrier channel estimation only on the data streams from the reduced set of sub-carriers and sub-carrier equalization only on the data streams from the reduced set of sub-carriers.