发明名称 TELEPHONE SYSTEM
摘要 The invention relates to a telephone system with which a connection between two subscribers can be established, at least one of them being a mobile subscriber. The system includes a paging network composed of one or several exten- sive paging ranges, each of them having a paging transmitter (H1,H2) of its own, a small cellular network with an exchange and a plurality of base stations (T), and mobile telephones with which a pager has been integrated. When calling a mobile telephone, the transmitter of the paging range in which the telephone is known or assumed to be transmits a paging message to the telephone, whereby, when the telephone is in the neighbourhood of the base station, the exchange of the cellular network establishes immediately a connection between the subscribers. No paging calls are lost because they are stored in the exchange of the cellular network, and on an appropriate occasion the pager of the telephone and the exchange compare the paging messages stored in the memories. In the disclosed system the call can be transmitted from one base station to another during the call (handover).
申请公布号 CA2024702(C) 申请公布日期 2001.09.04
申请号 CA19902024702 申请日期 1990.09.05
申请人 NOKIA MOBILE PHONES LTD. 发明人 LEVANTO, LAURI;RANTA, JUKKA TAPIO
分类号 H04W68/00;(IPC1-7):H04B7/26 主分类号 H04W68/00
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