Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-05-18
2000-06-27
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455437, 455439, 455 63, H04Q 720
Patent
active
060817135
ABSTRACT:
A method of reducing co-channel interference in a cellular telecommunication system having a congested serving cell, a plurality of neighbor cells controlled by a mobile switching center (MSC), and an accessing mobile station attempting to access the cellular system in the serving cell. The MSC fetches signal strength information from mobile stations camped on the serving cell's digital control channel (DCCH). The signal strength information includes received signal strengths at the camped mobile stations from the serving cell and the neighbor cells. The MSC then fetches signal strength information from busy mobile stations involved in on-going calls in the serving cell. For each busy and camped mobile station, the expected downlink signal strength from each neighbor cell is subtracted from the maximum downlink signal strength from the serving cell. The mobile station
eighbor cell combination with the numerically least difference causes the least co-channel interference when the identified mobile station is moved into the identified neighbor cell. If the identified mobile station is the accessing mobile station, the MSC redirects the accessing mobile station to access the cellular system in the identified neighbor cell. If the identified mobile station is a busy mobile station involved in a call, the MSC forces a handoff of the identified mobile station to the identified neighbor cell.
REFERENCES:
patent: 4613990 (1986-09-01), Halpern
patent: 4670899 (1987-06-01), Brody et al.
patent: 5241685 (1993-08-01), Bodin et al.
patent: 5287545 (1994-02-01), Kallin
patent: 5497504 (1996-03-01), Acampora et al.
patent: 5509051 (1996-04-01), Barnett et al.
patent: 5697053 (1997-12-01), Hanly
patent: 5794157 (1998-08-01), Haartsen
patent: 5911122 (1999-06-01), Corriveau et al.
Bost Dwayne D.
Telefonaktiebolaget LM Ericsson
Vuong Quochien B.
LandOfFree
Method of selectively directing a mobile station to retry system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of selectively directing a mobile station to retry system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of selectively directing a mobile station to retry system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1791774