Method and system for increasing capacity and improving performance of a cellular network
AssigneeNortel Networks Limited
InventorPrasanna Jayaraj Satarasinghe
Life of this patent
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Abstract
Provided is a system and method for optimizing the performance of the cellular network by maintaining status values concerning the cell and adjusting the conditions for handoff in response to the status values. The status values may include a pilot signal strength measurement for the second cell, a round trip delay measurement from the second cell to the mobile unit, an a designation of whether the second cell is current, removed, or most recently removed. With the status values, a determination can be made to remove the second cell from the mobile unit's Active Set if either the pilot signal strength for the second cell falls below a predetermined threshold or the round trip delay value exceeds a predetermined maximum.
Claims9
A method for optimizing the performance of a cellular telephone network including a first cell, a second cell, and a mobile unit located in the first cell, the method comprising maintaining status values concerning the first cell and adjusting conditions for handoff in response to the status values, the status values including a pilot signal strength measurement for the second cell, a round trip delay measurement from the second cell to the mobile unit, and a designation of whether the second cell is current, removed or most recently removed, such that the second cell is removed from a list of handoff cells if the pilot signal strength measurement for the second cell falls below a predetermined threshold or if the round trip delay measurement exceeds a predetermined maximum.
A method for optimizing the performance of a cellular telephone network including first and second cells, the method comprising the steps of:
- maintaining conditions for handoff for a mobile unit in the first cell;
- storing a first status value indicating whether the second cell is current, removed or most recently removed from a list;
- and
- adjusting the conditions for handoff in response to the status value.
A system for optimizing the performance of a cellular telephone network including first and second cells, the system comprising:
- means for maintaining a list of handoff cells for a mobile unit in the first cell;
- means for storing a first status value indicating whether the second cell is current, removed, or most recently removed from the list;
- and
- means for adjusting the list in response to the status value.
Dependencies are inferred from the claim text.