Patent ID: 7508759
Filing Date: 2009-03-24
Classification: H04B

Abstract:
1. A network side transmission apparatus designating timings of transfer of information for a plurality of terminal units on a user side, receiving information transferred from said plurality of terminal units by time division multiplexing at the transfer timings, and controlling variable rate traffic by dynamic bandwidth allocation, comprising: an allocating unit assigning allocated bandwidths for transfer corresponding to connections periodically according to amounts of information to be transferred corresponding to the connections stored in the terminal units; and a computing unit computing the allocated bandwidths so that contracted parameters relating to a sustainable cell rate and a peak cell rate and contracted parameters relating to fluctuation values allowed for the sustainable cell rate and peak cell rate preset for the connections are observed, the computing unit forcibly setting the allocated bandwidth to the sustainable cell rate or peak cell rate according to the contracted parameters when the allocated bandwidth exceeds a predetermined condition.