Multiplex communications – Wide area network – Packet switching
Patent
1988-03-02
1989-10-31
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3701101, H04M 300
Patent
active
048782165
ABSTRACT:
A method for management of logical channels essential for packet communication between an ISDN and subscribers. An ISDN cannot maintain details on each of the number of pieces of data terminal equipment in each subscriber. Therefore, the data terminal equipment returns to the ISDN the logical channel group number (LCGN) which has been allotted to itself upon recipt of a package at the ISDN. The ISDN then refers to the logical channel management memory corresponding to the specified data terminal equipment using that LCGN, while the data terminal equipment refers to the logical channel management memory in its own terminal adapter, with both thus obtaining the information required for the start of the packet communication.
Further, when forming in the ISDN a logical channel management memory corresponding to a newly established data terminal equipment, direct registration is performed directly between the ISDN and data terminal equipment automatically for the LCGN, etc.
REFERENCES:
patent: 4596010 (1986-06-01), Beckner et al.
patent: 4688214 (1987-08-01), DeWitt et al.
patent: 4713806 (1987-12-01), Oberlander et al.
patent: 4720850 (1988-01-01), Oberlander et al.
Fujitsu Limited
Marcelo Melvin
Olms Douglas W.
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