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EP0189695A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Radio-communication system with slow frequency hopping and composite sequences allocation protocol

Assignee: Ministère des Postes Télégraphes et Téléphones
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Filing: 1985-12-17
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Granted: —
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Expires: 2005-12-17
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Abstract

Abstract Translated from French Système de radiocommunications de type AMRC/SFL. CDMA / SFL type radio system. Selon ce système, les séquences de fréquences attribuées dans des cellules voisines sont orthogonales et les séquences attribuées dans le reste de la zone de couverture présentent un nombre réduit de collisions. Il en résulte une diversité de brouilleurs qui est mise à profit pour augmenter l'efficacité spectrale, donner une souplesse d'exploitation au système, réduire la taille des motifs, etc... According to this system, the frequency sequences allocated in neighboring cells are orthogonal and the sequences allocated in the rest of the coverage area have a reduced number of collisions. This results in a variety of jammers which is used to increase spectral efficiency, give flexibility to the system, reduce the size of the patterns, etc. Application en radiotéléphonie. Application in radiotelephony.

Inventors

  • 👤 Michel Mouly
  • 👤 Didier Verhulst

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 03:34
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/02; H04W16/12; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2628; H04B7/2634; H04L; H04L1/00; H04L1/004; H04L1/0041; H04L1/0056; H04L1/0057

Claims Analysis

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References Cited (Backward Citations)

EP0097579A1 Cited

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