A packet data communication system (10) where multiple users (87) can access the same channel (22) to maximize an efficiency of the communication system (10). Each channel (22) is divided into time slots. Each time slot is allocated to a user based on the user's request (303) for time slots and the availability...http://www.google.de/patents/US6078577?utm_source=gb-gplus-sharePatent US6078577 - System and method for packet data communication