Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-06-13
1999-11-02
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455435, H04Q 720
Patent
active
059786825
ABSTRACT:
Telecommunication system in which local terminals may be called from one or more central stations by way of transmission paths selected by selection device on the probability of success. Selection takes place with the help of selection tables on the basis of exchanged signalling messages obtained from, or by way of, a switching system (3); other selection tables are also possible, e.g., on the basis of geographic or cartographic information. To the transmission paths there are assigned scores on the basis of the points in time of successful and unsuccessful calls, and of numbers of successful calls. During a session, a call is first made by way of the transmission path having the highest score (S(ok), S(nok) or S(rc)) in one of the selection tables (OK, NOK and RC, respectively). In the event of failure, the call is repeated by way of a preferred transmission path (PP), once again in sequence of the scores from one of the selection tables. If these calls are unsuccessful as well, the other transmission paths are tested, once again in sequence of the scores (S(ok), S(nok) or S(rc)) from one of the selection tables (OK, NOK and RC, respectively). Transmission paths for which it is a short while ago (e.g., less than 5 minutes) that an unsuccessful call took place, are not used. All this is useful, inter alia, for Inmarsat, GSM, UMTS and UPT.
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Camps Johannes Marinus Antonius
Groeneweg Pieter Gerrit
Helwig Willem Johannes
Oude Vrielink Paul Bernardus Johannes
Van Der Werff Martin Remco
Bost Dwayne D.
Koninklijke KPN N.V.
Vuong Quochien B
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