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1. WO2007092687 - LOAD CONTROL IN A CELLULAR COMMUNICATION SYSTEM

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CIAIMS

1. An apparatus for load control in a cellular
communication system, the apparatus comprising:
means for determining a load level characteristic for at least one cell of the cellular communication system;
comparing means for comparing the load level
characteristic to a load level threshold;
means for executing a load control procedure if the load level characteristic exceeds the load level
threshold;
modifying means for determining a modified load level threshold in response to a performance
characteristic of the cellular communication system; and adjusting means for dynamically modifying the load level threshold in response to the modified load level threshold.

2. The apparatus of claim 1 wherein the performance characteristic comprises a load indication for at least one service supported by the cellular communication system relative to a second service supported by the cellular communication system.

3. The apparatus of claim 2 wherein the first service is a circuit switched service and the second service is a packet switched service.

4. The apparatus of claim 1 wherein the load control procedure comprises a call admission blocking of a service supported by the cellular communication system.

5. The apparatus of claim 1 wherein the load level threshold is associated with a limited geographical region.

6. The apparatus of claim 1 wherein the load level threshold is associated with a group of cells.

7. The apparatus of claim 1 wherein a network element is arranged to apply different load level thresholds for different cells supported by the network element.

8. The apparatus of claim 7 wherein the network element is arranged to determine different modified load level thresholds for different cell groups .

9. The apparatus claim 1 wherein a first network element is arranged to transmit configuration control messages to a second network element, the configuration control messages comprising an indication of the load level threshold, and the second network element is arranged to change the load level threshold in response to the indication.

10. A method of load control in a cellular communication system, the method comprising:
determining a load level characteristic for at least one cell of the cellular communication system;
comparing the load level characteristic to a load level threshold;
executing a load control procedure if the load level characteristic exceeds the load level threshold;
determining a modified load level threshold in response to a performance characteristic of the cellular communication system; and
dynamically modifying the load level threshold in response to the modified load level threshold.