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    • 9. 发明申请
    • 光网络单元和光线路终端及无源光纤接入网及其传输方法
    • WO2007095813A1
    • 2007-08-30
    • PCT/CN2006/003483
    • 2006-12-19
    • 华为技术有限公司陈珺江涛王峰赵峻
    • 陈珺江涛王峰赵峻
    • H04B10/12
    • H04J14/005H04J3/1694
    • An optical network unit, an optical line terminal and a passive optical network with its transmission method. The optical network unit includes a multi wavelength light source and an optical spreader, the multi wavelength light source is used for converting the electrical signal to the multi wavelength light signal and transmitting it to the optical spreader. The optical spreader is used for modulating the multi wavelength optical signal to the spread spectrum optical signal according to the spread spectrum address code, and sending the spread spectrum optical signal. The optical line terminal includes the optical receiver, which includes the optical despreader, the optoelectronic conversion module. The optical despreader is used for receiving the spread spectrum optical signal, demodulating the optical signal according to the spread spectrum address code, and transmitting the corresponding optical pulse sequence to the optoelectronic conversion module, the optoelectronic conversion module is used for converting the optical pulse sequence to the electrical signal. The passive optical network, includes the optical line terminal, the optical distribution network, and the optical network unit. The passive optical network data transmission method: uses the time division multiplex broadcast manner to transmit the downlink data, uses the optical code division multiple access manner to transmit the uplink data.