Patent ID: 6249511
Filing Date: 2001-06-19
Classification: H04L,H04Q

Abstract:
An apparatus for controlling cell transmission timing, which determines a following cell transmission time of transmitting a following cell that follows a preceding cell, using a preceding cell transmission time of transmitting the preceding cell and a time interval specified by a cell transmission rate of a connection along which the preceding cell and the following cell flow, to register the following cell in a step so as to be transmitted at the following cell transmission time, the apparatus for controlling cell transmission timing comprising:an accommodation circuit accommodating a plurality of connections along which a plurality of cells flow, each of the plurality of connections being allocated a cell transmission rate represented with a cardinal number, an exponent, and a function of a mantissa;a plurality of cell transmission queues, each being allocated a bandwidth for transmitting the plurality of cells and temporarily storing the plurality of cells, each of the plurality of cell transmission queues having a plurality of steps, each of the plurality of steps having registered therein one cell among the plurality of the cells, registered cells shifting toward a given step thereby permitting a cell shifted therein to be transmitted; anda managing circuit controlling registering of the one cell in one of the plurality of steps in the plurality of queues, using the cardinal number, the exponent, and the function of the mantissa of the connection of the one cell.