Patent ID: 7584375
Filing Date: 2009-09-01
Classification: G06F

Abstract:
1. A method comprising: selecting a condition for altering a power state of a first portion of a first communication channel to a second power state, the condition selected comprising that a first portion of the first communication channel is idle for at least two symbol periods, wherein selecting is based on maximizing a period in which a link between a first device and a second device is in a low power state while reducing a frequency of exits from the second power state, wherein the second power state is a low power state with a low exit latency; detecting the condition in the first device, the first device coupled to the first communication channel in the first power state, the first communication channel having the first portion and a second portion; and altering the power state of the first portion of the first communication channel to the second power state, after the condition has been met for at least a predetermined period wherein the condition is that the first portion of the first communication channel that is idle for at least two symbol periods.