SECURE DYNAMIC LINK ALLOCATION SYSTEM FOR MOBILE DATA COMMUNICATION

摘要

Systems and methods are disclosed for layered, secure data communications wi th a mobile unit over a variety of different communication links, such as in-ba nd signalling, SMS, CDPD etc. A privilege control table (188) determines permitted classes of messages. Content labeling is used to further manage communications without reading the payload of the message. The invention add s additional layers of security by varying content labels based on secure session key exchange seeded algorithms. The system also includes isolating t he application program (246) by providing a protocol manager (248) for exclusiv e receipt of a communication service request from the application program (246 ); the protocol manager (248) implementing a plurality of different message protocols. Another aspect of the invention includes link choose logic for effecting loosely-coupled, network loop communications to enable broadband delivery to a mobile unit, and can include parallel transmission of segmente d messages over plural communication links.