Dynamic Handling of orphan cells
First Claim
1. In a mobile telecommunications system that includes a plurality of base station controllers, a method for handling a base transceiver station that has become orphaned as a result of a loss of a primary base station controller that normally controls the base transceiver station, the method comprising:
- determining that contact has been lost between said base transceiver station and said primary base station controller;
identifying a secondary base station controller from among said plurality of base station controllers to adopt said base transceiver station; and
effecting a handover of said base transceiver station from said primary base station controller to said secondary base station controller.
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Accused Products
Abstract
Method and apparatus for handling a base transceiver station that has become orphaned as a result of a loss of a base station controller. The method includes determining that contact has been lost between a base transceiver station and a primary base station controller that normally controls the base transceiver station, identifying a secondary base station controller to adopt the base transceiver station, and effecting a handover of the base transceiver station from the primary base station controller to the secondary base station controller. The invention ensures that an operator can maintain some level of service to its customers even if it has lost a base station controller, including the ability to handle emergency calls.
13 Citations
28 Claims
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1. In a mobile telecommunications system that includes a plurality of base station controllers, a method for handling a base transceiver station that has become orphaned as a result of a loss of a primary base station controller that normally controls the base transceiver station, the method comprising:
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determining that contact has been lost between said base transceiver station and said primary base station controller;
identifying a secondary base station controller from among said plurality of base station controllers to adopt said base transceiver station; and
effecting a handover of said base transceiver station from said primary base station controller to said secondary base station controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28)
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24. A mobile telecommunications system comprising:
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a base station system, said base station system including a plurality of base station controllers, each of which controls at least one base transceiver station;
a determiner that determines that contact has been lost between a base transceiver station and a primary base station controller that normally controls said base transceiver station;
an identifier that identifies a secondary base station controller of said plurality of base station controllers to adopt said base transceiver station; and
handover means for handing over said base transceiver station from said primary base station controller to said secondary base station controller.
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Specification