Patent ID: 8644267
Filing Date: 2014-02-04
Classification: H04W

Abstract:
1. A wireless communication system, comprising: a plurality of wireless communication terminals connected to each other in a wired fashion and configuring a cluster; a controller configuring the cluster together with the plurality of the wireless communication terminals; and a plurality of wireless communication base stations, wherein each of the wireless communication base stations intermittently transmits a call signal to the plurality of the wireless communication terminals, and varies transmission timing from one wireless communication base station to another, the plurality of the wireless communication terminals receive the call signals from the plurality of the wireless communication base stations in a time division and alternate fashion, the controller determines a wireless communication terminal to communicate with the wireless communication base station based on information from the wireless communication terminals which receive the call signals, a time length to communicate the call signals is a base frame time length, a part of the basic frame time length or a multiple of the base frame time length, the base frame length occurs over a plurality of time intervals, and acoustic communication by means of an acoustic wave is used for communication between the wireless communication base station and the wireless communication terminal.