Call admission control method and system

Details Call admission control method and system Call admission control method and system

2006-10-10

2006-10-10

Vu, Huy D. (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S234000, C370S395210

Reexamination Certificate

active

07120114

ABSTRACT:
A call admission control technique allowing flexible and reliable call admissions at an ATM switch in the case of an ATM network including both QoS-specified and QoS-unspecified virtual connections is disclosed. In the case where a QoS (Quality of Service) specified connection request occurs, an estimated bandwidth is calculated which is to be assigned to an existing QoS-unspecified traffic on the link associated with the QoS-specified connection request. A call control processor of the ATM switch determines whether the QoS-specified connection request is accepted, depending on whether a requested bandwidth is smaller than an available bandwidth that is obtained by subtracting an assigned bandwidth and the estimated bandwidth from a full bandwidth of the link.

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