Multiple controller identities for neighbor lists
AssigneeMotorola, Inc.
InventorStephen L. Spear
Life of this patent
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Abstract
A method and system of generating neighbor cell lists in a cellular environment having a first cell and a plurality of neighbor cells. The first cell and the neighbor cells each include a plurality of designated active controllers associated therewith. In one embodiment, the method includes the steps of designating one of the controllers in the first cell as the active controller for the first cell, generating a first neighbor list of the active controllers for the neighbor cells, and generating a second neighbor list of the active controllers for the neighbor cells upon the change in active status of any of the neighboring active controllers. The lists are generated in accordance with a database of controllers linkable with the designated active controller.
Claims21
A method of generating neighbor cell lists in a cellular system, the system including a first cell and a plurality of neighbor cells, the first cell and the neighbor cells each including a plurality of designated active controllers associated therewith, the method including the steps of:
- designating one of the controllers for the first cell as the active controller for the first cell;
- generating a first neighbor list of the active controllers for the neighbor cells, the list being generated in accordance with a database of controllers linkable with the designated active controller, said database including address information for said controllers;
- and
- generating a second neighbor list of the active controllers for the neighbor cells upon the change in designation of any of the neighboring active controllers to a non-active controller, the list being generated in accordance with the database.
A method of modifying neighbor cell lists in a cellular system, the system including a first cell and a plurality of neighbor cells, the first cell having a plurality of controllers associable therewith, the method including the steps of:
- designating one of the controllers in the first cell as the first designated active controller for the first cell;
- generating an entry in a first neighbor cell list for each of the neighbor cells corresponding to the first designated controller for the first cell;
- designating another of the controllers for the first cell as the second designated active controller for the first cell;
- and
- modifying said entries in said neighbor cell lists to reflect the designation of the second designated active controller for the first cell.
A method of assigning a communication session among cells in a cellular system via a mobile handset, the system including a first cell and a plurality of neighbor cells, the first cell having at least a first and a second controller associable therewith, each of the neighbor cells including at least a first and a second controller associable therewith, the method including the steps of:
- generating a communication session in a mobile handset;
- processing communication information from said session in said first controller for said first cell;
- generating a first allocation entry in a neighbor cell list for at least some of said neighbor cells, the entry indicating that said first controller is active for said first cell;
- transferring the processing of information from said session in said first cell from said first controller to said second controller for the first cell;
- and
- generating a second neighbor allocation entry for at least some of said neighbor cells indicating that said second controller is active for said first cell.
A system for generating neighbor cell lists in a cellular environment, the cellular environment including a first cell and a plurality of neighbor cells, the system comprising:
- a plurality of controllers associated with the first cell and at least some of the neighbor cells, each of the cells having at least one of the associated controllers designated as an active controller for each cell;
- the active controller associated with the first cell being in communication with other controllers, said active controller for said first cell being able to access a first neighbor list of controllers for one or more neighbor cells in accordance with a neighbor list database, said database including communication parameters necessary for communication between controllers for neighboring cells and said active controller for said first cell;
- and
- notification means linked to the first active controller for notifying the controllers associated with the neighbor cells of a change in active status of any of the active controllers.
Dependencies are inferred from the claim text.