Patent ID: 8169940
Filing Date: 2012-05-01
Classification: H04W,Y02D

Abstract:
1. A method, comprising: notifying of device and piconet controller (PNC) availability in a network at the start of a superframe, wherein the network is at least one of wireless personal area network (WPN) or wireless local area networks (WLAN), wherein whether said PNC will stay awake or go to sleep during a part of said superframe depends on whether or not there are any services to provide in said network during a given period of time; and keeping said PNC awake when the PNC provides services to maintain network performance, otherwise said PNC will go to sleep to minimize its energy consumption, wherein said method is applied to channel time allocation (CTA) truncation and extension; wherein when said devices expect their CTAs to be truncated or extended, this information is delivered to said PNC when said devices are requesting a CTA allocation, and when said devices send CTA requests with an indication that they plan to truncate or extend their allocated CTAs, said PNC shall stay awake during those CTAs and otherwise, said PNC can go to sleep.