Optical network system, optical line terminal, optical network unit and optical distribution network device
A technology for optical line terminals and optical network units, applied in optical network units and optical distribution network devices, hybrid passive optical network systems, and optical line terminals, can solve the problem of large bandwidth, limited number of code multiplexing, and restricted system access Problems such as the number of users, to achieve the effect of overcoming security vulnerability, large access user capacity, and high network security
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[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0069] The invention provides a hybrid passive optical network system, which is used to realize the hybrid of time division multiplexing passive optical network and optical code division multiple access passive optical network, including: an optical line terminal, used to time-division multiplex The downlink signal modulation and coding of different channels use different codes for time-division multiplexing downlink signals, and the encoded downlink signals of each channel are combined into one and then output; and the uplink signal is received, and the received uplink signal is decoded and output ; The optical distribution network is used to receive the downlink signal output by the optical line terminal, divide the received downlink signal into mu...
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