OLT, ONU, PON system, and message transmission method in PON system

摘要

A message transmission method in an OLT, ONU, PON system, and PON system is provided. In the message transmission method, the OLT transmits first information to an unregistered ONU, and the OLT transmits first information to the ONU.- The first information includes at least one indication information, and the one indication information is the first power. Indicating a period and a first time domain period associated with the first power period; A step of receiving, by the OLT, a registration message transmitted by the ONU in a first time domain interval-the downlink reception power of the ONU is located in the first power interval. The signal strength when the ONU's registration signal with this downlink reception power reaches the OLT in the same power interval is similar or slightly different, which helps the OLT to quickly respond to the ONU's registration signal, and also It facilitates reducing the overall response time of the OLT to the registration signal.