Hakan L Ernam

6539221, Mar 25, 2003

Dec 28, 1999

09/473746

Mini Vasudevan - Richardson TX
Carlos Garcia - Allen TX
Chang Yu - Plano TX
Hakan Ernam - Wilmington MA
Will Egner - Allen TX
Sairam Subramanian - Dallas TX
Kenni Rasmussen - Holte, DK

Nortel Networks Limited - St. Laurent

H04B 1700

455423, 455 671, 455453, 455424, 455425, 455449

The present invention is a system for optimizing an existing wireless network and additions to an existing network. The system determines a value representing estimation of traffic in discrete bins within a geographic area. The traffic estimation includes a distribution of handover and new cell traffic based at least in part on the presence of a road in any bin or the proximity of a bin to a handover boundary. The cell coverage and carrier allocations of existing cells are adjusted in view of the traffic estimation.

6553227, Apr 22, 2003

Jul 17, 2000

09/617448

Joseph S. M. Ho - Dallas TX
Nhut Nguyen - Richardson TX
Hakan Ernam - Plano TX

Nortel Networks LTD - St. Laurent

H04Q 720

455433, 455560, 455445, 455453

A wireless communication system constructed according to the present invention assigns each serviced mobile unit to a serving mobile switching center to minimize mobility management overhead and to equalize loading among a plurality of mobile switching centers. The wireless communication system includes the plurality of mobile switching centers and a base station system which includes a plurality of base station controllers, each of which couples to a plurality of base stations. A plurality of mobile units served by the system are assigned to the mobile switching centers so that loading is equalized. In one particular construction of the wireless communication system, a dispatching switch couples the base station system to the plurality of mobile switching centers and performs the assignments of the mobile units. In an example of operation, upon attachment of a mobile unit, the dispatching switch determines loading of each of the mobile switching centers. Then, based upon the loading, the dispatching switch assigns the mobile unit to one of the mobile switching centers, the âservingâ mobile switching center.

61482013, Nov 14, 2000

Jul 31, 1998

9/127104

Hakan Ernam - Dallas TX
Christopher S. Reece - Plano TX
Jim Xu - Plano TX

Nortel Networks Corporation - Montreal

H04Q 720

455433

A wireless communication system constructed according to the present invention assigns mobile units to equalize loading among a plurality of mobile switching centers. The wireless communication system includes the plurality of mobile switching centers and a base station system which includes a plurality of base station controllers, each of which couples to a plurality of base stations. A plurality of mobile units served by the system are assigned to the mobile switching centers so that loading is equalized. In one particular construction of the wireless communication system, a dispatching switch couples the base station system to the plurality of mobile switching centers and performs the assignments of the mobile units. In an example of operation, upon attachment of a mobile unit, the dispatching switch determines loading of each of the mobile switching centers. Then, based upon the loading, the dispatching switch assigns the mobile unit to one of the mobile switching centers, the "serving" mobile switching center.

60979518, Aug 1, 2000

Aug 6, 1998

9/130293

Hakan Ernam - Plano TX
Jim Xu - Plano TX
Christopher S. Reece - Plano TX

Northern Telecom Limited - Montreal

H04Q 720

455433

A method and apparatus for scaling a wireless telecommunications network having an architecture based upon subscriber distribution includes providing a base station subsystem (BSS) and a pool of mobile switching centers (MSCs) interconnected with one another. The mobile switching centers include visitor location registers (VLRs). Lastly, a dispatcher mobile switching center (DMSC) is provided, the dispatcher mobile switching center being coupled between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs) for establishing communication between the base station subsystem (BSS) and the pool of mobile switching centers (MSCs). The dispatcher mobile switching center (DMSC) further provides for distributing mobile station subscribers and call related work among the pool of mobile switching centers (MSCs).

60919531, Jul 18, 2000

Nov 16, 1998

9/192764

Joseph S. M. Ho - Dallas TX
Nhut Nguyen - Richardson TX
Hakan Ernam - Plano TX

Nortel Networks Limited - Montreal

H04Q 720

455433

A wireless communication system constructed according to the present invention assigns each serviced mobile unit to a serving mobile switching center to minimize mobility management overhead and to equalize loading among a plurality of mobile switching centers. The wireless communication system includes the plurality of mobile switching centers and a base station system which includes a plurality of base station controllers, each of which couples to a plurality of base stations. A plurality of mobile units served by the system are assigned to the mobile switching centers so that loading is equalized. In one particular construction of the wireless communication system, a dispatching switch couples the base station system to the plurality of mobile switching centers and performs the assignments of the mobile units. In an example of operation, upon attachment of a mobile unit, the dispatching switch determines loading of each of the mobile switching centers. Then, based upon the loading, the dispatching switch assigns the mobile unit to one of the mobile switching centers, the "serving" mobile switching center.