Patent ID: 7423977
Filing Date: 2008-09-09
Classification: H04J,H04L

Abstract:
1. A method, comprising: defining a maximum deviation allowed for any round trip time (RTT) sample relative to a current RTT value; computing a deviation of a RTT sample relative to the current RTT value; if the computed deviation is greater than zero and greater than the maximum deviation allowed, then performing a first type of RTT smoothing operation wherein the RTT sample is factored into the current RTT value using an additive increase; if the computed deviation is less than zero and an absolute value of the computed deviation is greater than the maximum deviation allowed, then performing a second type of RTT smoothing operation wherein the RTT sample is factored into the current RTT value using a multiplicative decrease; and otherwise performing a third type of RTT smoothing operation wherein a percentage of the RTT sample is factored into a percentage of the current RTT value.