Patent ID: 8189462
Filing Date: 2012-05-29
Classification: H04W

Abstract:
1. A method of adjusting a physical carrier sensing (PCS) threshold for a terminal apparatus in a wireless network, the method comprising: measuring, when a shared channel for transmitting data in the wireless network is not in an idle state, a congestion status of said shared channel based on a ratio between busy slots of said shared channel and idle slots of said shared channel; determining by the terminal apparatus, based on the measured congestion status of said shared channel, whether to adjust the PCS threshold; and adjusting by the terminal apparatus, when it is determined to adjust the PCS threshold, the PCS threshold based on a packet loss measured for a predetermined period of time, wherein the PCS threshold is a reference for determining whether said shared channel is in an idle state for use, and data transmissions are attempted during the idle slots of said shared channel and paused during the busy slots of said shared channel.