| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wireless communication system where one communication server apparatus and a plurality of communication terminals can make mutual information communication via a wireless communication network configured among them so as to establish efficient communication among a plurality of the wireless communication terminals and the communication server apparatus and sure wireless communication is conducted even in an area of a weak radio wave so as to attain stable wireless communication over a wider range. <P>SOLUTION: A wireless communication network 6A used usually and a wireless communication network 6B used on the occurrence of abnormity are configured among the communication server apparatus 1 and a plurality of the mobile devices 11A to 11N, the communication server apparatus 1 is provided with: a transmission/reception control section 28; a connection control section 30; an input control section 31; and a mobile device management section 32 for managing operating states of the mobile devices, and each mobile device is provided with; wireless control sections 17A, 17B, a transmission/reception control section 21, a connection control section 23, and an input control section 24 so as to make transmission/reception with the wireless communication networks by wireless communication, and the communication server apparatus makes transmission/reception with the wireless communication networks by wired communication to assign a leased channel to each mobile device so as to eliminate the need for idle channel searching and to attain efficient communication. <P>COPYRIGHT: (C)2003,JPO</p> |
