Method and system for session admission control in broadband wireless network

摘要

A method and system for providing session admission control for a new session in a broadband wireless network is provided. The method may include obtaining a guaranteed bit rate and a first quality of service class indicator for the new session. The method may further include calculating an available capacity using the guaranteed bit rate and determining whether the available capacity is a negative or a positive value. The new session may be admitted or rejected based on whether the available capacity is a negative or positive value.

主权项

1. A method of providing session admission control for a new session in a broadband wireless network, the method comprising:
obtaining, via one or more hardware processors, a guaranteed bit rate and a first quality of service class indicator for the new session; calculating, via one or more hardware processors, an available capacity using the guaranteed bit rate; determining, via one or more hardware processors, whether the available capacity is a negative or a positive value; in response to the available capacity being a negative value, selectively searching through existing sessions for a first session to be preempted; in response to the available capacity being a positive value, determining a first plurality of sessions from among the existing sessions that have the first quality of service class indicator and checking whether performance metrics for the first plurality of existing sessions satisfy predetermined criteria, wherein the checking comprises: checking whether at least one of a current average scheduling interval is lower than a sum of a threshold scheduling interval and a hysteresis value, and a current average packet drop rate is lower than a sum of a threshold packet drop rate and the hysteresis value; and rejecting the new session in response to at least one of the current average scheduling interval being lower than the sum of the threshold scheduling interval and the hysteresis value and the current average packet drop rate being lower than the sum of the threshold packet drop rate and the hysteresis value.