Cha & Reiter, LLC
Wireless sensor network and method for performing communication therein
A method for performing communication in the wireless sensor network is disclosed. The upper node transmits a beacon message to the lower nodes, wherein the beacon message distinguishes an indirect transmission interval, in which the upper node transmits downlink data to the plurality of lower nodes, from a direct transmission interval adjacent to the indirect transmission interval, in which the upper node receives uplink data from the plurality of lower nodes. The lower nodes determine the indirect transmission interval and the direct transmission interval from the received beacon message. The downlink data is transmitted from the upper node to the lower nodes in the indirect transmission interval. The uplink data is transmitted from the lower nodes to the upper node in the direct transmission interval. When communication is performed between the upper node and the lower nodes, the data can be efficiently transmitted from the upper node to the lower nodes.
Samsung Electronics Co., Ltd.
H H H H
H04W H04W H04W H04W
additional additional additional inventional
Hyo Hyun Eui Jik Sun Gi Van Ca Jeong Geun
Choi Kim Kim Phan Kim