Patent ID: 7630694
Filing Date: 2009-12-08
Classification: H04B,H04L,H04W

Abstract:
1. A remote access unit for transmitting downstream data and receiving upstream data, wherein the downstream and upstream data include multiplexed channels having different transmission schemes, comprising: an antenna for receiving the downstream data and wirelessly transmitting same and for receiving the upstream data and providing same into the remote access unit; a switch receiving downstream time division channels demultiplexed from the downstream data and providing the downstream time division channels to the antenna and receiving upstream time division channels demultiplexed from the upstream data inputted through the antenna; and a controller for controlling the switch in order to prevent the upstream and downstream time division channels from overlapping; a first duplexer for demultiplexing the downstream data into downstream time division channels and downstream frequency division channels and outputting the downstream time division channels to the switch; a triplexer for: demultiplexing the upstream data received through the antenna into upstream time division channels and upstream frequency division channels; and multiplexing the downstream time division channels received from the switch and the downstream frequency division channel inputted from the first duplexer and providing the multiplexed downstream time division and frequency divisions to the antenna; and a second duplexer for combining the upstream time division channels received from the switch and the upstream frequency division channels inputted from the triplexer, into the upstream data.