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METHOD FOR TRANSMITTING VARIABLE LENGTH MESSAGES BETWEEN A MAIN STATION AND A FINAL STATION IN A DATA TRANSMISSION SYSTEM.

Assignee: Motorola Solutions Inc
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Filing: 1984-06-28
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Granted: —
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Expires: 2004-06-28
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Abstract

Abstract Translated from English Système de communication de données (Fig. 1) dans lequel des messges de longueur variable (Fig. 3, 4 et 5) sont communiqués entre un contrôleur général de communication (GCC 104) et une pluralité de radios portatives et mobiles (130, 132, 134, 136, 138). Les messages de longueur variable (Fig. 3) comprennent un champ de synchronisation de bits (204), un champ de synchronisation de messages (205) et une pluralité de blocs de données de canal (203) permettant de traiter de manière efficace et fiable de longues chaînes de données ou de texte. Chaque bloc de données de canal (Fig. 5) comprend un champ d'informations (503), un champ de parité (505) permettant une connexion en cas d'erreur au champ d'informations et un champ d'état de canal (507) indiquant si le canal radio est occupé ou libre. Le GCC (104) est couplé à un agencement cellulaire de modules de communication de canaux (CCMs 106, 108, 110, 112), comprenant chacun un émetteur radio (114, 120, 124) et/ou un récepteur radio (116, 118, 122, 126, 128). Les radios mobiles et portatives (130, 132, 134, 136, 138) communiquent avec le GCC (104) à l'aide des CCMs (106, 108, 110, 112). Data communication system (Fig. 1) in which variable length messages (Fig. 3, 4 and 5) are communicated between a general communication controller (GCC 104) and a plurality of portable and mobile radios (130, 132 , 134, 136, 138). Variable length messages (Fig. 3) include a bit synchronization field (204), a message synchronization field (205) and a plurality of channel data blocks (203) for efficient and reliable processing long strings of data or text. Each channel data block (Fig. 5) includes an information field (503), a parity field (505) allowing connection in the event of an error to the information field and a channel status field ( 507) indicating whether the radio channel is busy or free. The GCC (104) is coupled to a cellular arrangement of channel communication modules (CCMs 106, 108, 110, 112), each comprising a radio transmitter (114, 120, 124) and / or a radio receiver (116, 118 , 122, 126, 128). Mobile and portable radios (130, 132, 134, 136, 138) communicate with the GCC (104) using CCMs (106, 108, 110, 112).

Inventors

  • 👤 Jay Krebs
  • 👤 Thomas Arthur Freeburg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 17:22
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/06

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