Invention Grant
US07646704B2 Method and apparatus for spur cancellation in an orthogonal frequency division multiplexing communication system 有权
在正交频分复用通信系统中用于杂散消除的方法和装置

Method and apparatus for spur cancellation in an orthogonal frequency division multiplexing communication system
Abstract:
A communication device is provided that is capable of operating in an OFDM or communication system and that provides for cancellation of in-band spurs. The communication device identifies a bin of multiple bins associated with an output of an inverse transformer and comprising a spur and estimates one or more spur phase parameters and a spur amplitude in association with the identified bin. In one embodiment of the present invention, the one or more spur phase parameters includes a spur initial phase and a spur change rate. When the communication device receives a signal from another communication device, the communication device transforms the received signal to produce a multiple parallel output signals that are each associated with a bin of the multiple bins and cancels a spur in an output signal associated with the identified bin based on the estimated one or more spur phase parameters and spur amplitude.
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