| 摘要 |
A system of data transmission includes a first optical-electrical conversion module (102) located at a central office and a second optical-electrical conversion module (201) located at a remote terminal, the first optical-electrical conversion module (102) including a first optical transceiver module (113), the second optical-electrical conversion module (201) including a second optical transceiver module (211), the first optical-electrical conversion module (102) including a mixing unit (112), configured to perform Mix received xDSL signals and wireless signals, and output mixed electrical signals to the first optical transceiver module, the first optical transceiver module performing electrical-optical conversion on the received electrical signal and transmitting the optical signal to the second optical transceiver module through a fiber, the second optical transceiver module performing optical-electrical conversion on the received optical signal, separating the xDSL signals and wireless signals. A method of data transmission is also disclosed, including: mixing xDSL signals and wireless baseband signals to obtain mixed electrical signals; performing optical-electrical conversion on the mixed electrical signal, and transmitting converted optical signals to a remote terminal through a fiber; performing optical-electrical conversion, by the remote terminal on the received optical signal, and seperating the xDSL signals and wireless signals. According to embodiments of the present invention, optical accessing network is utilized to provide xDSL services and wireless services simultaneously, that is, to implement transmission of two types of services with a same network. Thus, requirements of different subscribers are met, and cost of the whole system is reduced.
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