Synchronization apparatus, synchronization system, radio communication apparatus and synchronization method

Abstract

A synchronization apparatus, a synchronization system, a radio communication apparatus, and a synchronization method capable of reducing the effect of the fluctuations in synchronization signals that arc caused when the synchronization signals arc received through a network are provided. A synchronization apparatus ( 20 ) according to the present invention receives a synchronization signal transmitted from a synchronization signal source ( 10 ) through a network. The synchronization apparatus ( 20 ) includes a frequency synchronization unit ( 21 ) that performs frequency synchronization based on a received synchronization signal, and outputs a frequency synchronization signal, a phase synchronization unit ( 23 ) that performs phase synchronization based on a synchronization signal transmitted from the synchronization signal source ( 10 ) through a network, and outputs a phase synchronization signal, and a phase synchronization control unit ( 22 ) that generates an offset value by using a phase difference between the frequency synchronization signal and the phase synchronization signal, and corrects a phase of the frequency synchronization signal by using the offset value.

1 . A synchronization apparatus comprising:
 at least one memory storing instructions, and   at least one processor configured to execute the instructions to:   perform frequency synchronization based on a first synchronization signal received through a network,   output a frequency synchronization signal,   perform phase synchronization based on a second synchronization signal received through a network,   output a phase synchronization signal, and   generate an output frequency synchronization signal by using the frequency synchronization signal and the phase synchronization signal.   
     
     
         2 . A synchronization method comprising:
 performing frequency synchronization based on a first synchronization signal received through network,   outputting a frequency synchronization signal;   performing phase synchronization based on a second synchronization signal received through network;   outputting a phase synchronization signal; and   generating an output frequency synchronization signal by using the frequency synchronization signal and the phase synchronization signal.   
     
     
         3 .- 13 . (canceled)