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    • 2. 发明公开
    • SIGNAL TRANSMITTING METHOD, SIGNAL RECEIVING METHOD, PASSIVE OPTICAL NETWORK DEVICE AND SYSTEM
    • 信号传输方法,信号接收方法,无源光网络装置和系统
    • EP2744125A1
    • 2014-06-18
    • EP11864796.5
    • 2011-09-15
    • Huawei Technologies Co., Ltd.The Hong Kong Polytechnic University
    • ZHOU, LeiWEI, GuoLV, ChaoWANG, DaweiLIU, Botao
    • H04B10/14
    • H04B10/27H04B10/532H04B10/614H04B10/6151H04J14/02
    • Embodiments of the present invention relate to a signal transmission method, a signal receiving method, a passive optical network PON device, and a PON system. The signal receiving method includes: receiving a first transmit signal, where the first transmit signal includes a first polarized optical signal and a second polarized optical signal that are perpendicular to each other, where the first polarized optical signal is loaded with first data, the first transmit signal is an uplink signal, and the first data is uplink data, or, the first transmit signal is a downlink signal, and the first data is downlink data; splitting the first transmit signal into a first signal and a second signal according to power; separately rotating a first polarized optical signal and a second polarized optical signal of the second signal by 90 degrees; and performing coherent mixing on the rotated second signal and the first signal to obtain the first data. The embodiments of the present invention reduce the numbers of lasers and polarization diversity structures on a terminal device or a central office device, thereby reducing complexity of the device and the system and reducing costs.
    • 本发明的实施例涉及信号传输方法,信号接收方法,无源光网络PON设备和PON系统。 该信号接收方法包括:接收第一发射信号,其中第一发射信号包括彼此垂直的第一偏振光信号和第二偏振光信号,其中第一偏振光信号被加载第一数据,第一 发送信号为上行信号,所述第一数据为上行数据,或者,所述第一发送信号为下行信号,所述第一数据为下行数据; 根据功率将第一发射信号分成第一信号和第二信号; 分别旋转90度的第一偏振光信号和第二信号的第二偏振光信号; 以及对旋转的第二信号和第一信号执行相干混合以获得第一数据。 本发明实施例减少了终端设备或局端设备上激光器和极化分集结构的数量,从而降低了设备和系统的复杂度,降低了成本。