Asymmetric bandwidth allocation

Details Asymmetric bandwidth allocation Asymmetric bandwidth allocation

2008-07-08

2008-07-08

Pham, Chi (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S329000, C370S336000, C370S443000

Reexamination Certificate

active

10492141

ABSTRACT:
A method of determining the position of the split between uplink and downlink bandwidth, in a point of multipoint radio access system with time division duplex scheme comprising a certain number of user terminals and a base station has been disclosed, wherein there are at least two quality of service classes, a first class for guaranteed services (RT) and a second class for not-guaranteed/best effort services (BE). The MAC layer evaluates and controls a further movement of the split—as that initially determined by a Call Admission Control (CAC)—according to the behavior of uplink and downlink not-guaranteed/best effort queues observed during a certain observation period.

REFERENCES:
patent: 6542481 (2003-04-01), Foore et al.
patent: 7023798 (2006-04-01), Bourlas et al.
patent: 2001/0038620 (2001-11-01), Stanwood et al.
patent: 2002/0098821 (2002-07-01), Struhsaker
patent: 2005/0089064 (2005-04-01), Zimmerman et al.
patent: 2006/0146863 (2006-07-01), Spinar et al.

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