REGIONAL MOBILE COMMUNICATION NETWORK AND SUBSCRIBER TERMINAL Russian patent published in 2009 - IPC H04B7/26 

FIELD: physics; communication.

SUBSTANCE: present invention pertains to mobile communication systems and provides for two-way communication between subscribers voice communication mode and message transfer in a regional cellular network coverage area and in message transfer mode on the whole territory of the region. Networks consist of the region's cellular networks, shortwave base transponders, located at a distance from the covered region and connected to each other and with centres for switching cellular networks through communication lines, and subscriber terminals. The subscriber terminals have ultra-shortwave and shortwave transceivers interacting in the network, constructively used separately or together, the former of which provide for voice communication cellular network subscribers and exchange of messages with all subscribers of the regional network, within the cellular network coverage area. The latter provide for exchanging messages with all subscribers of the regional network, located in any part of the region. Transmission of signals from subscriber terminals on the shortwave communication channel is done on separate frequencies, assigned by the network, predominantly with low power and low keying speed, and mainly on several parallel decorrelated channels. Data signals and control signals are transmitted from shortwave base transponders to all subscriber terminals mainly at high power successively in time and mainly using high-speed keying methods. Each shortwave base transponder can also cover the region's neighbouring areas and/or several regions at the same time. The network subscriber terminal has a shortwave transceiver, a cellular transceiver, control unit, and can also have common display and keyboard, an input for data coming from external sources, an output for control signals of external objects, an output for connecting external shortwave antennae, and can be connected to a navigation system unit. Switching on and off of the shortwave transceiver when the subscriber moves out and into the cellular network coverage area on the whole territory of the region is automatic.

EFFECT: widening the zone, covered by regional cellular networks, in message transfer mode between subscribers, to an area, equal or larger than the territory of that region, as well as provision for reliable two-way communication in a message transfer mode within the boundaries of the covered region.

6 cl, 5 dwg