Method and system for improved traffic management in wireless telecommunication systems

DETAILED DESCRIPTION Briefly described, and in accordance with an embodiment thereof, the invention discloses a technique for improved traffic management in a spread spectrum wireless telecommunication network using admission control.
In an embodiment of the invention, a first admission control limit is set for the first frequency based on an acceptable tolerance level for which coverage holes associated with cell breathing may develop.
A second admission control limit that is stricter i.
e.
lower than the first admission control limit is set for a designated frequency.
The second admission control limit is set low enough that it is virtually free of coverage problems.
As coverage problems develop on the first frequency, mobiles on the first frequency that stray into a coverage hole are diverted to the designated frequency via a hard handoff.
Moreover, access attempts made from within a coverage hole on the first frequency are likewise diverted the designated frequency.
In a second aspect of the invention, if the load on the designated frequency exceeds its admission control limit due to a large number of diverted calls, for example, the first frequency loading is checked to determine if it has room to handoff back from the designated frequency.
This enables the designated frequency to remain under its admission control limit thus maintaining its ability to continue to receive diverted calls while assuring that there are no coverage problems.
The invention provides improved call traffic management within the wireless network by diverting traffic afflicted by coverage problems on one frequency to an alternative (designated) frequency that is free of such problems.
The method thereby improves overall capacity and call quality in the network by utilizing frequency resources in a more efficient manner.
These and other advantages of the present invention will become apparent upon reading the following detailed description and studying the various figures of the drawings.