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1. WO1997041699 - DISPOSITIF DE TERMINAL D'ABONNE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS
1. A subscriber terminal arrangement in a telecommunication system utilizing radio in the local loop,
characterised by a subscriber terminal comprising a low power radio part, a pulse code modulation (PCM) air
interface, and a low power paging channel for the call setup procedure, a power supply part, and a user terminal comprising a hand-set and a dialling device.
2. An arrangement according to claim 1, characterised by a standard (e.g. CCITT) line interface between the subscriber terminal and the user terminal, the interface supporting a ringing generator and a two wire copper cable.
3. An arrangement according to claim 1, characterised by a simple two wire connection between the subscriber ter-minal and the user terminal, the user terminal further including a piezoelectric ringer.
4. An arrangement according to claim 1, characterised in that the subscriber terminal and the user terminal are integrated in the same unit .
5. An arrangement according to any one of the preceding claims, characterised in that the power supply part is integrated in the subscriber terminal.
6. An arrangement according to claim 1, characterised in that the subscriber terminal includes an interface for connecting a number of user terminals, e.g. up to 4, 8, 16, 32 or more.
7. An arrangement according to any one of the preceding claims, characterised by concentration in the radio part for supporting a greater number of user terminals than the number of radio channels.
8. An arrangement according to any one of claims 1 to 5, characterised in that an omnidirectional antenna is connected directly to the user terminal.
9. An arrangement according to any one of claims 1 to 7, characterised in that a separate antenna is connected to the subscriber terminal, e.g. directly on the subscriber terminal or via lines to a window, wall or roof mounted antenna .
10. An arrangement according to any one of the
preceding claims, characterised in that the power supply part is connected to an independent power supply unit comprising a power generator, e.g. solar panels and/or a wind generator, rechargeable batteries, and a control unit for controlling the charging procedure.
11. An arrangement according to any one of the preceding claims, characterised in that the air interface is capable of supporting 64 kb/s PCM coding offering high quality audio, and/or variable data rates up to 64 kb/s.
12. An arrangement according to claim 11, characterised in that that the air interface is capable of multiplexing several PCM channels offering hi-fi audio, or ISDN basic rate access (BRA) .
13. An arrangement according to any one of claims 1-3, 5-7, and 9-12, characterised in that the RF unit of the radio part is integrated with an antenna, the RF unit being powered from the subscriber terminal by an antenna cable .