发明名称 RADIO COMMUNICATIONS SYSTEMS AND METHODS FOR JITTERED BEACONTRANSMISSION
摘要 Radio beacon transmission between a private radio communications base statio n and a mobile terminal within the transmission range of the private radio communications base station designed to prevent interference with overlappin g uncoordinated private radio communications networks is provided by jittered beacon transmission. The private base station transmits radio beacon bursts at jittered time intervals, which vary pseudo-randomly to prevent repeated radi o beacon collisions between uncoordinated private radio communications network s with overlapping transmission ranges. The beacon time jittering is performed pseudo-randomly in a pattern which is associated with a base station identification value. The mobile terminal derives the base station associate d identification value and status information from a received radio beacon and determines if the base station is available for communications with the mobi le terminal. The mobile terminal further synchronizes with the jittered base station beacon transmissions based on the pre-determined jitter generation function associated with the base station identification value derived from the received radio beacon. The mobile terminal is thereby able to readily maintain synchronization with one or more private radio communications netwo rk base stations without losing synchronization due to repeated radio beacon burst collisions between the base stations.
申请公布号 CA2264746(C) 申请公布日期 2003.04.22
申请号 CA19972264746 申请日期 1997.08.22
申请人 TELEFONAKTIEBOLAGET LM ERICSSON 发明人 HAARTSEN, JACOBUS CORNELIS
分类号 H04B7/26;H04W84/14;H04W88/06;(IPC1-7):H04M1/00 主分类号 H04B7/26
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