Patent ID: 6741565
Filing Date: 2004-05-25
Classification: H04L,H04Q

Abstract:
A method of calculating an estimated cell for a connection, the method comprising:receiving a cell on the connection; adjusting an averaging parameter so that a value of the averaging parameter is a function of cell rate; estimating a cell rate for the connection using the value of the adjusted averaging parameter; wherein said adjusting includes adjusting the averaging parameter so that the value of the adjusted averaging parameter is proportional to at least one of (a) a number of cell intervals between the received cell and a previously received cell, and (b) a previously stored value indicative of or calculated at least in part based upon a number of cell intervals between two received cells; and calculating a cell rate parameter A(new) in the following manner: A(new)=A(old)*(1âˆ’&agr;)+&agr;*n=A(old)âˆ’&agr;*(A(old)âˆ’n) wherein &agr; is the averaging parameter that is adjusted in said adjusting step, â€œnâ€  is a count value indicative of a number of cell intervals between the received cell and a previously received cell on the same connection, and A(old) is a previously calculated and stored value indicative of a number of cell intervals between two previously received cells; estimating the cell rate (CR) by CR=1/(A(new)*t), where â€œtâ€  is a length of a cell period; and sending the estimated cell rate CR to a source via a backward RM cell.