Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-04-19
2005-04-19
Appiah, Charles (Department: 2684)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S509000, C455S518000, C455S464000, C320S118000
Reexamination Certificate
active
06882848
ABSTRACT:
Method and computer-readable medium are provided for controlling signaling and channel assignment in a decentralized trunked radio system to operationally mimic a centralized trunked radio system. The method allows monitoring a parameter indicative of elapsed time of channel activity, such as control channel or working channel activity or both, presently being carried in a respective one of a plurality of radio frequencies assigned to the radio system. Upon the parameter indicative of elapsed time of channel activity reaching a respective target value, the method allows determining whether there is another radio frequency in the plurality of radio frequencies assigned to the radio system available for carrying the channel activity presently being carried by the one radio frequency. If the determining action indicates the presence of an available radio frequency for carrying the channel activity, the channel activity is shifted from the one radio frequency to the available radio frequency. The method allows iteratively performing the foregoing actions for each of the plurality of radio frequencies assigned to the radio system so that radio channel activity, upon reaching the target value, is sequentially shifted to any radio frequency determined to be available, and thus ensuring that each radio frequency assigned to the radio system is generally free in a time interval commensurate with the respective target value.
REFERENCES:
patent: 5299199 (1994-03-01), Wilson et al.
patent: 5355516 (1994-10-01), Herold et al.
patent: 5533024 (1996-07-01), Owada
patent: 5697058 (1997-12-01), Paavonen
patent: 6804529 (2004-10-01), Barnes et al.
Whitepaper titled “EDACS Explained”, as retrieved on Jan. 28, 2002 from URL http://www.trunkedradio. net/trunked/edacs/EDACS_Whitepaper.pdf.
Whitepaper titled LTR Trunking System technical description, as retrieved on Feb. 1, 2002, from URL http://www.virtualcomm.com/cnm/faq/e/ltr.htm.
Moondra Neeraj
Speidel Robert
Wieczorek Dariusz
Appiah Charles
Beusse Brownlee Wolter Mora & Maire P.A.
M/A-Com Private Radio Systems, Inc.
Mora, Esq. Enrique J.
LandOfFree
Method and computer-readable medium for controlling... 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 computer-readable medium for controlling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and computer-readable medium for controlling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3437992