Patent ID: 8718154
Filing Date: 2014-05-06
Classification: H04L

Abstract:
1. A method for wireless communications, comprising: employing a data processor to execute the following instructions: tracking a signal boundary of an orthogonal frequency division multiplex (OFDM) wireless signal with a tracking function that is based on a characteristic of at least one tone of a plurality of tones of a first channel of the OFDM wireless signal, wherein the first channel is a reference signal channel having a frequency range consisting of a plurality of frequency bands each having a frequency bandwidth, and wherein the plurality of tones of the reference signal channel span the frequency range of the reference signal channel and have a frequency spacing of two or more frequency bandwidths; verifying the signal boundary of the tracking function with an additional function that is based on a different characteristic of at least one tone of a plurality of tones of a second channel of the OFDM wireless signal, the second channel being different from the first channel, and wherein the second channel is a synchronization signal channel, and wherein the plurality of tones of the synchronization signal channel have a frequency spacing less than the frequency spacing of the plurality of tones of the reference signal channel; and storing results of the tracking or the verifying in memory.