Call admission control for wireless networks

Details Call admission control for wireless networks Call admission control for wireless networks

1996-06-07

1999-03-16

Chin, Wellington

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455436, 455438, 455443, 455450, 455453, H07Q 701

Patent

active

058841741

ABSTRACT:
Improved wireless telephone call admission methods for admitting new and/or handoff calls into a wireless telephone network having a plurality of communications channels. One such method, fractional guard channel call admission, effectively reserves a non-integral number of guard channels for handoff calls by rejecting new calls in accordance with a probability value that is dependent upon the current channel occupancy. Fractional guard channel call admission results in a significant reduction of new call blocking when a fixed constraint is placed on the handoff call blocking probability. Fractional guard channel call admission also provides improvements over the integral guard channel policy by minimizing the number of required channels when fixed constraints are placed on both the new call blocking probability and the handoff call blocking probability. In addition, methods are disclosed for computing optimized parameter settings for the fractional guard channel policy in the context of specified design objectives.

REFERENCES:
patent: 4670899 (1987-06-01), Brody et al.
patent: 4718081 (1988-01-01), Brenig
patent: 5081671 (1992-01-01), Raith et al.
patent: 5301356 (1994-04-01), Bodin et al.
patent: 5574977 (1996-11-01), Joseph et al.

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