| 摘要 |
<p>A method, device and system for signal processing in passive optical network are provided in the embodiments of the present invention. Wherein, the method for signal processing in passive optical network includes: the received service signal is processed with the baseband coding (101); in the Orthogonal Frequency Division Multiplexing modulation mode, the service signal processed with the baseband coding is modulated into the assigned Orthogonal Frequency Division Multiple Access (OFDMA) sub-carrier (102); the modulated OFDMA sub-carrier is digital-to-analogue conversed to obtain an electric domain OFDMA signal (103); said electric domain OFDMA signal is modulated into the uplink optical signal to obtain an optical domain OFDMA signal (104); said optical domain OFDMA signal is transmitted (105). The embodiments of the present invention can obtain the continuous optical signal by applying the OFDMA modulation mode, and the continuous optical signal can perform optical power compensation, thus it can support the remote distance transport; the transmitting and receiving device for the continuous signal has lower cost than that for the burst signal, thus reducing the cost of network construction.</p> |
