A mobile data communications system includes a cellular wireless data communications network, such as a GPRS or CDPD network, including a plurality of base stations that communicate with terminals according to a first radio interface. The plurality of base stations are coupled to a control node, such...http://www.google.fr/patents/US7408906?utm_source=gb-gplus-shareBrevet US7408906 - Mobile data communications apparatus, methods and computer program products implementing cellular wireless data communications via a wireless local area network
Mobile data communications apparatus, methods and computer program products ...
