Method and apparatus of delivering upstream data in ethernet passive optical network over coaxial network

摘要

An apparatus for interconnecting a fiber-optic network and a coax network comprising a coax line terminal (CLT) configured to couple to an optical line terminal (OLT) at the fiber-optic network and a plurality of coax network units (CNUs) at the coax network and to cache data received from the CNUs and forward the cached data to the OLT upon receiving a message from the OLT that assigns a transmission cycle for a specified CNU, wherein the CLT forwards the cached data to the OLT upon receiving the message regardless of whether the cached data corresponds to the specified CNU.

主权项

1. An apparatus for interconnecting a fiber-optic network and a coax network, comprising:
a coax line terminal (CLT) configured to:
couple to an optical line terminal (OLT) via the fiber-optic network;couple to a plurality of coax network units (CNUs) via the coax network;receive a first data message comprising a first data from a first of the CNUs;cache the first data received from the first CNU;subsequent to caching the first data, receive a first upstream scheduling message from the OLT that assigns an upstream transmission cycle for a second of the CNUs, wherein the first CNU is not the second CNU; andupon receiving the first upstream scheduling message, forward a data frame of the cached first data from the first CNU to the OLT during the upstream transmission cycle assigned to the second CNU.