Nokia Networks Oy

Leena Antila

Olli Liinamaa

Toivo Lallukka

Pekka Lehto

Arto Rukaj&auml;rvi

Timo Juntunen

Jyrki Suutari

Jaakko Saarela

Procedure for accomplishing PSTN-mapping in a telecommunication system comprising a telephone exchange (LE) with a number of subscribers defined in it, a first access node (AN,), which is connected to the telephone exchange via a first V5 interface (V5), a second access node (AN,), which is connected to the first access node (AN,) via a second V5 interface (V5&prime;), and terminal equipment (TE) connected to the second access node (AN,), the connection between the subscriber and the telephone exchange (LE) being set up by cascading the two V5 interfaces. The signalling sequences and message decoding in PSTN-mapping are exclusively taken care of by the telephone exchange (LE) and the second access node (AN,), and the signalling is transmitted transparently through the first access node (AN,) without the first access node participating in the decoding of the signalling.

Procedure for providing a pstm-mapping in a telecommunication system

Procedure for subscriber addressing in a cascaded V,interface in a data communication system comprising a telephone exchange (LE) with a number of subscribers defined in it, and access network (AN) connected to the telephone exchange via a first V,interface (V,) and comprising a first access node (AN,), a second access node (AN,), which is connected to the telephone exchange, and a subscriber terminal (TE), which is connected to the local exchange via the access network and/or the second access node. According to the invention, the second access node (AN,) is connected to the first access node (AN&excl;) via a second V,interface, the connection between the subscriber and the telephone exchange (LE) being set up by cascading the two V,interfaces, subscriber parameters comprising an identifier of the first V,interface (V,) and an identifier of the second V,interface (V,&prime;) and the subscriber's L,address consistent with the V,definitions are defined for each subscriber, the signalling between the subscriber and the telephone exchange being effected using the first and second V,interfaces in accordance with the identifiers.

Procedure for subscriber addressing in a cascaded V5 interface

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Oulu, Finland

Leena Antila