Source: http://www.google.com/patents/US6385449?ie=ISO-8859-1&dq=5,371,548
Timestamp: 2015-01-31 05:33:41
Document Index: 495713370

Matched Legal Cases: ['art 1', 'art 1', 'art 5', 'art 1', 'art 1', 'art 5', 'application No. 09', 'application No. 09']

Patent US6385449 - System and method used in a mobile telecommunications network for load ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA method and system for load balancing used in a mobile telecommunications network. The load balancing system includes a mobile services switching center and a first base station controller coupled to the mobile services switching center for managing a first plurality of cells. The load balancing system...http://www.google.com/patents/US6385449?utm_source=gb-gplus-sharePatent US6385449 - System and method used in a mobile telecommunications network for load balancing ongoing calls between different base station controllersAdvanced Patent SearchPublication numberUS6385449 B2Publication typeGrantApplication numberUS 09/036,391Publication dateMay 7, 2002Filing dateMar 6, 1998Priority dateMar 6, 1998Fee statusPaidAlso published asCA2322313A1, DE69924985D1, DE69924985T2, EP1060629A1, EP1060629B1, US20010012778, WO1999045734A1Publication number036391, 09036391, US 6385449 B2, US 6385449B2, US-B2-6385449, US6385449 B2, US6385449B2InventorsErik H. Eriksson, Magnus Olsson, Anna Helleberg, Ranjit BhatiaOriginal AssigneeTelefonaktiebolaget L M EricssonExport CitationBiBTeX, EndNote, RefManPatent Citations (14), Non-Patent Citations (7), Referenced by (36), Classifications (9), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetSystem and method used in a mobile telecommunications network for load balancing ongoing calls between different base station controllersUS 6385449 B2Abstract A method and system for load balancing used in a mobile telecommunications network. The load balancing system includes a mobile services switching center and a first base station controller coupled to the mobile services switching center for managing a first plurality of cells. The load balancing system further includes a second base station controller coupled to the mobile services switching center for managing a second plurality of cells, where one cell of the first plurality of cells is adjacent to one cell of the second plurality of cells. The second base station controller includes a processor responsive to receiving a first load indication message from the first base station controller in order to determine whether to handover at least one ongoing call from the one cell of the second base station controller to the one cell of the first base station controller.
CROSS REFERENCE TO RELATED APPLICATIONS This application is related to two U.S. applications filed on Mar. 6, 1998 in the name of Pontus Wallentin entitled �Telecommunications Inter-Exchange Measurement Transfer� Ser. No. 09/035,827 and �Telecommunications Inter-Exchange Congestion Control� Ser. No. 09/035,788; both of which are hereby incorporated by reference herein.
The BSC may have a feature known as �Cell Load Sharing� to increase the capacity and operating performance of the network by effectively balancing the ongoing call loads between the cells that are adjacent to one another. For example, at any time a particular cell may have a high ongoing call load, while adjacent cells have low ongoing call loads, thus triggering the �Cell Load Sharing� feature of the base station controller to balance the various call loads between the different cells. The BSC balances the various call loads by transferring some of the ongoing calls from the cell having the high ongoing call load to the adjacent cell(s) having the low ongoing call load. Of course, the ongoing call load for any cell is constantly changing due mainly to origination of new calls and handovers of calls from traveling mobile terminals.
However, the �Cell Load Sharing� feature currently used will operate only with respect to the cells or base transceiver stations that are controlled by one base station controller. Thus, if a cell associated with a different base station controller is adjacent to the cell controlled by another base station controller, then no balancing of the ongoing calls can be completed, because the required information is not communicated between the different base station controllers.
SUMMARY OF THE INVENTION The present invention is a method and system for load balancing used in a mobile telecommunications network. The load balancing system includes a mobile services switching center and a first base station controller coupled to the mobile services switching center for managing a first plurality of cells. The load balancing system further includes a second base station controller coupled to the mobile services switching center for managing a second plurality of cells, where one cell of the first plurality of cells is adjacent to one cell of the second plurality of cells. The second base station controller includes a processor responsive to receiving a first load indication message from the first base station controller in order to determine whether to handover at least one ongoing call from the one cell of the second base station controller to the one cell of the first base station controller.
DETAILED DESCRIPTION OF THE DRAWINGS Referring to the Drawings, wherein like numerals represent like parts throughout FIGS. 1-3, there is disclosed an exemplary load balancing system 50, which can be used to implement a preferred embodiment of the present invention.
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OTHERS;REEL/FRAME:009380/0925;SIGNING DATES FROM 19980320 TO 19980407RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services