OLT, ONU AND PON SYSTEM AND INFORMATION TRANSMISSION METHOD IN PON SYSTEM

摘要

An OLT, an ONU and a PON system, and an information transmission method in a PON system. The method comprises: an OLT sending first information to an unregistered ONU, the OLT sending the first information to the ONU, wherein the first information comprises at least one piece of indication information, and one piece of indication information indicates a first power section and a first time-domain section associated with the first power section; and the OLT receiving a registration message sent by the ONU in the first time-domain section, wherein the downlink receiving power of the ONU is located in the first power section. The signal strengths when the registration signals of ONUs with the downlink receiving power in the same power section reach an OLT are similar or slightly different, thereby helping the OLT to make a quick response to the registration signals of the ONUs, and facilitating shortening the overall response time of the OLT to the registration signals of different ONUs.