Overload cell control method in a CDMA mobile system

Details Overload cell control method in a CDMA mobile system Overload cell control method in a CDMA mobile system

1997-02-05

1999-06-15

Pham, Chi H.

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370335, 370342, 455453, 455436, 455449, 455522, H04J 1300, H04B 7216

Patent

active

059128844

ABSTRACT:
The method for controlling an overload cell in a CDMA Mobile System comprises the steps of: a first step of receiving information on the overload cell from an overload detection module within a base station controller to retrieve the information on the load of neighboring cells and calculating the information on the total overload of neighboring cells; a second step of determining whether or not the total overload of the neighboring cell in a second hierarchy is greater than the maximum value of the neighboring cells; a third step of informing the overload detection module of the impossibility of control and terminating the procedure when it is determined that the total overload of the neighboring cell in the second hierarchy is not greater than the maximum value of the neighboring cells; a fourth step of retrieving a cell group as a third hierarchy with minimum load when at the second step it is determined that the total overload of the neighboring cell in the second hierarchy is greater than the maximum value of the neighboring cells; and a fifth step of increasing forward power of the cell with minimum load to expand a service region and handoffing a moving subscriber call in the vicinity of the neighboring cell of the overload cell to the expanded cell.

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patent: 5787344 (1998-07-01), Scheinert
A Novel Adaptive Traffic Load Shedding Scheme for CDMA Cellular Mobile Systems; X.H. Chen and Caleb Joshua Lee K.L.; pp. 566-570; 1994.

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