Patent ID: 6181929
Filing Date: 2001-01-30
Classification: H04B,H04W

Abstract:
In a cell site of a radio frequency communication system, the cell site including two redundant controllers, the two redundant controllers arranged so that at any point in time one controller of the two redundant controllers functions as an on-line controller, with the other controller of the two redundant controllers functioning as an off-line controller, and including one or more peripheral units arranged to support the on-line controller, a method of switching from the on-line controller to the off-line controller, the method comprising steps of:(a) by the on-line controller, detecting a failure of at least one peripheral unit of the one or more peripheral units arranged to support the on-line controller; and(b) by the on-line controller, based on detecting the failure of at least one peripheral unit of the one or more peripheral units arranged to support the on-line controller, switching to the off-line controller;wherein either controller of the two redundant controllers is able to function as the on-line controller.