Network termination enabling relief of call congestion in an exchanger
First Claim
1. A network termination connected to an exchanger and a plurality of terminal adaptors, and enabling relief of call congestion in an exchanger, the network termination comprising:
- reception means for receiving a reduction rate included in congestion information transmitted from the exchanger;
frame transmission means for transferring a frame including a plurality of cells, each cell having a header field and an information field, and the header field having a busy bit field;
unusable cell preparation means operatively connected to said frame transmission means and for generating a train having a plurality of cells including the unusable cells defined based on the reduction rate from said reception means; and
transmission means operatively connected to said unusable cell preparation means and for transferring the cell train including the unusable cells to the terminal adaptors.
1 Assignment
0 Petitions
Accused Products
Abstract
In a network termination connected to an exchanger and a plurality of terminal adaptors, and enabling relief of call congestion in an exchanger, the network termination includes: a reception port for receiving a reduction rate indicated by a congestion information area in a SDH frame input from the exchanger; a SDH frame transmission unit for transferring the SDH frame including a plurality of ATM cells, each ATM cell having a header field and an information field, and the header field having a busy bit field; an unusable cell preparation unit operatively connected to the SDH frame transmission unit for generating the ATM cell train including the unusable cells defined based on the reduction rate from the exchanger; and a transmission port operatively connected to the unusable cell preparation unit for transferring the ATM cell train including the unusable cells to the end terminals.
5 Citations
7 Claims
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1. A network termination connected to an exchanger and a plurality of terminal adaptors, and enabling relief of call congestion in an exchanger, the network termination comprising:
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reception means for receiving a reduction rate included in congestion information transmitted from the exchanger; frame transmission means for transferring a frame including a plurality of cells, each cell having a header field and an information field, and the header field having a busy bit field; unusable cell preparation means operatively connected to said frame transmission means and for generating a train having a plurality of cells including the unusable cells defined based on the reduction rate from said reception means; and transmission means operatively connected to said unusable cell preparation means and for transferring the cell train including the unusable cells to the terminal adaptors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification