System and method for providing channel equalization in orthogonal frequency division multiplexing (OFDM) wireless systems

摘要

The present disclosure relates to a computer-implemented method for estimating a communication channel response, comprising procedures such as: receiving, via the channel, a signal comprising a plurality of symbols, each comprising a plurality of sub-carriers; determining a pilot sub-carrier response and a pilot sub-carrier metric for one or more pilot sub-carriers; and for one or more non-pilot sub-carriers: i) determining a non-pilot sub-carrier metric; ii) if the non-pilot sub-carrier metric satisfies a criterion, determining a particular component (e.g., real or imaginary) of a non-pilot sub-carrier response as a function of different components of one or more pilot sub-carrier responses; and iii) if the non-pilot sub-carrier metric does not satisfy the criterion, determine the particular component of the non-pilot sub-carrier response as a function of the particular component of one or more pilot sub-carrier responses. Other embodiments include a communication apparatus and a computer-readable medium configurable to perform such procedures.

主权项

1. A non-transitory, computer-readable medium providing computer-executable instructions for estimating a response of a communication channel, wherein, when executed by a computer arrangement, the instructions specifically configure the computer arrangement to execute procedures comprising:
receiving, via the communication channel, a signal comprising a plurality of symbols, each symbol comprising (i) one or more pilot sub-carriers and (ii) one or more non-pilot sub-carriers; for each of the one or more pilot sub-carriers, determining a pilot sub-carrier response and a pilot sub-carrier metric; and for each of the one or more non-pilot sub-carriers:
determining a non-pilot sub-carrier metric; andif the non-pilot sub-carrier metric satisfies a predetermined criterion, determining a particular component of a non-pilot sub-carrier response as a function of components, different from the particular component, of one or more pilot sub-carrier responses.