Method and system for synchronizing time and frequency in orthogonal frequency division multiplex communication
A frequency synchronization and multiplexing communication technology, applied in the direction of multi-frequency code system, etc., can solve the problems of data detection interference, reduce system overhead, algorithm performance degradation, etc., achieve low overhead, achieve the effect of time and frequency synchronization
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[0075] The method for time and frequency synchronization between a transmitted signal and a received signal in OFDM communication provided by the embodiment of the present invention can be used in a MIMO system. The method is a joint process including the transmission data structure at the transmitting end and the time and frequency synchronization using the transmission data with a specific structure at the receiving end. The idea is to use pilots in the communication process, design the frequency domain joint pilot pattern of each antenna at the transmitting end to make the time domain sequence have a specific correlation, and then use the time domain correlation to synchronize time and frequency.
[0076] The method and system for MIMO-OFDM time and frequency synchronization provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0077] In a preferred embodiment of the present invention, the schematic...
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