Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-03-04
1997-09-16
Pham, Chi H.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455 62, 455134, 455513, H04Q 700, H04Q 900
Patent
active
056690606
ABSTRACT:
In a cellular telephone system, mobile station measurements of received signal strength on each reference frequency are made in order to select a cell. At call set-up in or handoff to that cell, a voice frequency is selected by the system to carry the communication. A determination is then made as to whether the antenna used for the reference frequency is the same as that used by the selected voice frequency. From this determination, actions are taken as needed to address concerns over potential differences in broadcast coverage areas for the antennas. For example, an alternate voice frequency using the same antenna as the reference frequency may be chosen. Further, a test broadcast may be made on the selected voice frequency for comparison to the received signal strength on the reference frequency in order to confirm the selection of the cell and use of the selected voice frequency.
REFERENCES:
patent: 4704734 (1987-11-01), Menich et al.
patent: 4737978 (1988-04-01), Burke et al.
patent: 4932049 (1990-06-01), Lee
patent: 5097484 (1992-03-01), Akaiwa
patent: 5117236 (1992-05-01), Chang et al.
patent: 5138327 (1992-08-01), Chang et al.
patent: 5175878 (1992-12-01), Davis et al.
patent: 5193109 (1993-03-01), Lee
patent: 5355522 (1994-10-01), Demange
patent: 5384826 (1995-01-01), Amitay
patent: 5481571 (1996-01-01), Balachandran et al.
patent: 5548809 (1996-08-01), Lemson
Arthur Gertrude
Pham Chi H.
Telefonaktiebolaget L M Ericsson (publ)
LandOfFree
Method and apparatus for enhancing call set-up and handoff quali 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 and apparatus for enhancing call set-up and handoff quali, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for enhancing call set-up and handoff quali will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-226856