Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-07-21
2000-04-25
Chin, Wellington
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455436, 455442, 370332, H04B 726
Patent
active
060554282
ABSTRACT:
At the mobile station the measured pilot energy of each pilot in the candidate set is iteratively compared against a threshold generated in accordance with the sum of the energies of the pilots in the active set. If the strongest pilot in the candidate set satisfies this threshold condition, it is added to the revised active set. A second iterative process is performed to determine whether a pilot should be deleted from the revised active set. The mobile station determines whether a change to the current active set is desirable by measuring the energies of the pilots in the active set and the candidate set, and dynamically adjusting the necessary thresholds based on its own estimation of the communication environment.
REFERENCES:
patent: 4112257 (1978-09-01), Frost
patent: 4123718 (1978-10-01), Lampert et al.
patent: 4765753 (1988-08-01), Schmidt
patent: 4777653 (1988-10-01), Bonnerot et al.
patent: 4811421 (1989-03-01), Havel et al.
patent: 4868795 (1989-09-01), McDavid et al.
patent: 4870698 (1989-09-01), Katsuyama et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5093840 (1992-03-01), Schilling
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5107487 (1992-04-01), Vilmur et al.
patent: 5128965 (1992-07-01), Henriksson
patent: 5204876 (1993-04-01), Bruckert et al.
patent: 5220678 (1993-06-01), Feei
patent: 5245629 (1993-09-01), Hall
patent: 5257283 (1993-10-01), Gilhousen et al.
patent: 5265119 (1993-11-01), Gilhousen et al.
patent: 5267261 (1993-11-01), Blakeney, II et al
patent: 5267262 (1993-11-01), Wheatley, III
patent: 5305468 (1994-04-01), Bruckert et al.
patent: 5383219 (1995-01-01), Wheatley, III et al.
patent: 5390338 (1995-02-01), Bodin et al.
patent: 5450616 (1995-09-01), Rom
patent: 5465399 (1995-11-01), Oberholtzer et al.
patent: 5483669 (1996-01-01), Barnett et al.
patent: 5487180 (1996-01-01), Ohtake
patent: 5548808 (1996-08-01), Bruckert et al.
patent: 5548812 (1996-08-01), Padovani et al.
patent: 5574983 (1996-11-01), Douzono et al.
patent: 5577022 (1996-11-01), Padovani et al.
patent: 5640414 (1997-06-01), Blakeney, II et al.
patent: 5854785 (1998-12-01), Willey
Baker Kent D.
Chin Wellington
Jama Isaak R.
Martin Roger W.
Miller Russell B.
LandOfFree
Method and apparatus for performing soft hand-off in a wireless 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 performing soft hand-off in a wireless , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing soft hand-off in a wireless will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1001159