| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmission apparatus and communication method, which enable a network synchronizing timing to be stably transmitted and received by utilizing an IP communication system without requiring any new transmission system facilities. <P>SOLUTION: A transmission apparatus (103, 203) in a communication system for transmitting a TDM signal via an IP network has a TDM-IP converting function section (110, 111) for performing conversion between the TDM signal and an IP signal; a transmission converting section (113) for converting a transmission IP signal into a WDM transmission signal, with which a timing signal of the TDM signal can be extracted, in accordance with the timing signal; and a wavelength multiplexing/demultiplexing section (115) for transmitting a wavelength multiplexing transmission signal to a counter station through wavelength multiplexing. <P>COPYRIGHT: (C)2011,JPO&INPIT |
