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1. WO1979001089 - MULTIPLE FRAME RATE TECHNIQUE FOR A TDMA COMMUNICATION SYSTEM

Publication Number WO/1979/001089
Publication Date 13.12.1979
International Application No. PCT/US1979/000274
International Filing Date 30.04.1979
IPC
H04B 7/204 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
204Multiple access
H04J 3/16 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
16in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
CPC
H04B 7/2046
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
14Relay systems
15Active relay systems
204Multiple access
2046SS-TDMA, TDMA satellite switching
H04J 3/1647
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
16in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
1605Fixed allocated frame structures
1623Plesiochronous digital hierarchy [PDH]
1647Subrate or multislot multiplexing
Applicants
Inventors
Priority Data
90779519.05.1978US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTIPLE FRAME RATE TECHNIQUE FOR A TDMA COMMUNICATION SYSTEM
(FR) PROCEDE FOURNISSANT DIFFERENTES VITESSES DE REPETITION D"UNE TRAME, UTILISABLE DANS UN SYSTEME DE COMMUNICATION A ACCES MULTIPLE A REPARTITION TEMPORELLE
Abstract
(EN)
Method for use in a communication system of providing efficient access by low traffic stations while keeping the buffering requirements for high traffic stations at a minimum. The method provides a TDMA architecture which includes a plurality of different frame rates which is dependent on the traffic requirements between station pairs. In operation, a sequence of a plurality of s switching frames (SW. FRAME 1 - SW. FRAME 100) are used to form a super frame (SUPER FRAME) and each communication burst (A, B, ... K, S) of a switching frame is divided into a plurality of q subbursts (1-13) representative of q transmission channels so that a maximum of (q.s) transmission channels are available for assignment in corresponding bursts during a super frame. When traffic demands require n.s channels between two ground stations, (e.g., 400 Voice Circuits For ground station K.) then n subbursts (i.e. 1-4) in corresponding bursts in each switching frame will be assigned thereto for an integer portion of n, while demands for less than s channels (e.g., 50 Voice Circuits for K4-K7) will be spread as evenly as possible throughout the corresponding bursts of the s switching frames of a super frame.
(FR)
Le procede, utilisable dans un systeme de communication, permet de fournir un acces parfait a des stations a faible trafic tout en maintenant au minimum la necessite de stockage intermediaire pour des stations a grand trafic. Ce procede fournit une architecture a acces multiples a repartition temporelle qui inclut une pluralite de vitesses de repetition de la trame differentes, dependant des exigences du trafic entre paires de stations. En fonctionnement, s trames de commutation (TRAME SW 1 - TRAME SW 100) sont utilisees pour former une super-trame (SUPER TRAME) et chaque intervalle de temps (A, B, .... K, S) d"une trame est subdivise en q sous-intervalles (1-13) correspondants a q voies de transmission, afin qu"un maximum de q.s voies de transmission soient disponibles pour affectation dans les intervalles correspondants pendant une super-trame. Lorsque le volume du trafic necessite n.s voies entre deux stations (par exemple 400 circuits de voix pour la station K), n sous-intervalles (c"est-a-dire 14) dans des intervalles correspondants dans chaque trame de commutation lui sont affectes pour une portion entiere de n, tandis que des requetes d"un nombre de voies inferieur a s (par exemple 50 circuits de voix pour K4-K7) seront reparties de maniere aussi egale que possible entre tous les intervalles correspondants des s trames d"une super-trame.
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