| US 7,457,623 B2 | ||
| Handover in cellular communication system | ||
| Siamäk Naghian, Espoo (Finland); and Risto Aalto, Riihimäki (Finland) | ||
| Assigned to Nokia Corporation, Espoo (Finland) | ||
| Filed on Nov. 21, 2003, as Appl. No. 10/717,634. | ||
| Application 10/717634 is a continuation of application No. PCT/FI02/00449, filed on May 24, 2002. | ||
| Claims priority of application No. 20011098 (FI), filed on May 25, 2001. | ||
| Prior Publication US 2004/0102194 A1, May 27, 2004 | ||
| Int. Cl. H04Q 7/20 (2006.01) | ||
| U.S. Cl. 455—439 [455/436; 455/442; 370/331; 370/332] | 42 Claims |
| 1. A method for deciding on handover in a cellular communication system, comprising:
collecting bit rate information related to a mobile station, when the mobile station is moving from a first cell to a second
cell, wherein the mobile station initially has a connection to at least the first cell providing a certain bit rate to the
mobile station, the collecting of the bit rate information comprising measuring the bit rate provided to the mobile station
by the first cell and/or a bit rate provided to the mobile station by the second cell; and
using the collected bit rate information for deciding on when handover of the mobile station from the first cell to the second
cell should be carried out by triggering the mobile station handover from the first cell to the second cell when the bit rate
provided by the first cell and/or the bit rate provided by the second cell fulfils a predetermined condition or predetermined
conditions,
wherein the bit rate is a transfer rate with which data is transmitted.
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