Method for universal channel allocation based on DS-0 channelized format

Method for universal channel allocation based on DS-0 channelized format

A universal DS-0 channelized format is provided wherein selected states of CAS bits are used to indicate to the transport mechanism when DS-0 channels are not being used for voice and are available for use for data transport. In addition, the T1 frame format carries CAS bits only in the first DS-0 c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BUCKLAND KENNETH M, HOBBEL JAN C, MANCHESTER EARL B
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
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Beschreibung
Zusammenfassung:A universal DS-0 channelized format is provided wherein selected states of CAS bits are used to indicate to the transport mechanism when DS-0 channels are not being used for voice and are available for use for data transport. In addition, the T1 frame format carries CAS bits only in the first DS-0 channel, so that robbed bits are disabled and not used to carry ABCD signaling bits, thereby avoiding any risk of data corruption. Still further, a special CAS signaling value not defined as a CAS state, is employed in a frame nibble instead of a frame counter to indicate that the state is in the first DS-0 slot.