EP 0842588 A1 19980520 - APPARATUS FOR UPGRADING OF A ONE-WAY MESSAGE TRANSMISSION SYSTEM
Title (en)
APPARATUS FOR UPGRADING OF A ONE-WAY MESSAGE TRANSMISSION SYSTEM
Title (de)
GERÄT ZUR VERBESSERUNG EINES EIN-WEG RUFÜBERTRAGUNGSSYSTEM
Title (fr)
DISPOSITIF DESTINE A AUGMENTER LA PUISSANCE D'UN SYSTEME UNIDIRECTIONNEL DE TRANSMISSION DE MESSAGES
Publication
Application
Priority
- GB 9611145 A 19960529
- IB 9700328 W 19970401
Abstract (en)
[origin: WO9746032A1] In order to upgrade a one-way message transmission system (10, 14, BS1 to BS3) to an answer-back system at minimum additional cost and inconvenience, an answer-back apparatus (20, 22, 24, 26) is provided which is coupled to a paging network controller (10) of the one-way message transmission system. The answer-back apparatus comprises a receiver (22) for monitoring messages transmitted to secondary stations (18) on a down-link, another receiver (20) for receiving responses from the secondary stations on an up-link and an answer-back network controller (26) for matching the responses to the messages and for issuing acknowledgements to be sent by the one-way system and for relaying the responses to be intended recipients. The answer-back network controller (26) labels messages to be sent on the down-link, the labels being used in matching the responses to the messages.
IPC 1-7
IPC 8 full level
H04B 1/04 (2006.01); H04J 13/00 (2011.01); H04W 84/02 (2009.01); H04W 88/18 (2009.01)
CPC (source: EP KR)
H04W 84/025 (2013.01 - EP KR); H04W 88/181 (2013.01 - KR); H04W 88/184 (2013.01 - KR); H04W 88/185 (2013.01 - KR); H04W 88/185 (2013.01 - EP)
Citation (search report)
See references of WO 9746032A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9746032 A1 19971204; BR 9702237 A 19990223; CN 1198289 A 19981104; EP 0842588 A1 19980520; GB 9611145 D0 19960731; JP H11510669 A 19990914; KR 19990035894 A 19990525; TW 345788 B 19981121
DOCDB simple family (application)
IB 9700328 W 19970401; BR 9702237 A 19970401; CN 97190917 A 19970401; EP 97908429 A 19970401; GB 9611145 A 19960529; JP 54188497 A 19970401; KR 19980700555 A 19980124; TW 86104274 A 19970403