Patent ID: 7170877
Filing Date: 2007-01-30
Classification: H04L,H04W

Abstract:
1. A method of managing radio resources in a time-slotted wireless communication system, the method comprising: (a) sorting a plurality of time slots of a radio resource over which a communication is transmitted into a plurality of different categories, each category being associated with a different level of quality of service (QoS), each time slot being assigned one of a plurality of designations based upon the QoS of a user, wherein at least one communication parameter is defined differently for each time slot designation, and the at least one communication parameter is dynamically adjusted by a radio resource management (RRM) function based on a state of traffic; (b) obtaining QoS information with respect to a user in response to a radio resource request received from the user; (c) associating the user with a particular category of time slots based on the QoS information of the user, the QoS information includes information regarding a particular one of a plurality of subscriber classes, each class having a different level of QoS, and a user designated as belonging to a higher subscriber class has a higher priority during handover than a user in a lower subscriber class; (d) constantly monitoring the state of the traffic; (e) if traffic congestion occurs or the data rate for a particular time slot designation changes, dynamically adjusting the number of time slots assigned to each time slot designation; (f) if a handover is initiated and there are not enough resources in a desired target cell to which the handover is directed, freeing high capacity time slots and adjusting QoS requirements to avoid traffic congestion; and (g) if data packet scheduling is required, adjusting delay and jitter for scheduling the data packets based on time slot designation.