Patent ID: 8126005
Filing Date: 2012-02-28
Classification: H04W

Abstract:
1. A communication apparatus comprising a unit which selects a superframe from W consecutive superframes in a beacon transmission window, W being an integer equal to or greater than two, and starts a non-selected one of the W consecutive superframes without transmitting a beacon in a first time period of the non-selected one of the W consecutive superframes if the non-selected one of the W consecutive superframes is a superframe to be started, wherein the selected superframe is stochastically selected from the W consecutive superframes, wherein the superframe to be started comprises the first time period, a second time period and a third time period, and the first time period, the second time period, and the third time period are exclusive of each other, wherein the communication apparatus transmits the beacon in the first time period of the selected superframe, if the superframe to be started is the selected superframe, wherein the communication apparatus transmits data, or waits for receiving data in the second time period of the superframe to be started, and wherein the communication apparatus sleeps in the third time period of the superframe to be started.