专利名称：Wireless sensor network and method for
performing communication therein
发明人：Eui Jik Kim,Sun Gi Kim,Hyo Hyun Choi,Jeong
Geun Kim,Van Ca Phan
申请号：US12333460申请日：20081212公开号：US08340053B2公开日：20121225
专利附图：
摘要：A method for performing communication in the wireless sensor network isdisclosed. The upper node transmits a beacon message to the lower nodes, wherein the
beacon message distinguishes an indirect transmission interval, in which the upper nodetransmits downlink data to the plurality of lower nodes, from a direct transmissioninterval adjacent to the indirect transmission interval, in which the upper node receivesuplink data from the plurality of lower nodes. The lower nodes determine the indirecttransmission interval and the direct transmission interval from the received beaconmessage. The downlink data is transmitted from the upper node to the lower nodes inthe indirect transmission interval. The uplink data is transmitted from the lower nodes tothe upper node in the direct transmission interval. When communication is performedbetween the upper node and the lower nodes, the data can be efficiently transmittedfrom the upper node to the lower nodes.
申请人：Eui Jik Kim,Sun Gi Kim,Hyo Hyun Choi,Jeong Geun Kim,Van Ca Phan
地址：Suwon-si KR,Seoul KR,Seoul KR,Yongin-si KR,Yongin-si KR
国籍：KR,KR,KR,KR,KR
代理机构：Cha & Reiter, LLC
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