Nokia Networks Oy

Nokia Corporation

Nokia Telecommunications Oy

Jyrki Suutari

Olli Liinamaa

Toivo Lallukka

Pekka Lehto

Arto Rukaj&auml;rvi

Timo Juntunen

Heimo Pentik&auml;inen

Leena Antila

Kirsi-Marjut Simonen

Arto Rukajärvi

Kirsi Paananen

The present invention relates to a procedure for ensuring the operation of signalling channels in a V5 interface between a local exchange (LE) and an access node (AN). The interface includes at least two links (L), in conjunction with redefinition of the interface composition. Redefinition generally involves making changes in the V5 interface data, such as the location of signalling channels on the links. According to the invention, the operation of protected channels in conjunction with restarting is ensured by starting the protected channels on the channels defined for them in the new composition and on the channels to which they were transferred in conjunction with the protection switch-over.

Procedure for ensuring the operation of signalling channels in a V5 interface

The invention relates to a procedure for carrying out checking functions relating to safety management in a mobile communication network and/or in a wireless local network during call setup. In the procedure, information about the degree of occupancy of a data processing apparatus implementing the checking functions in a network element, such as a mobile communication switching center and/or the access node of a wireless local network, is continuously determined, the frequency of execution of the checking functions is adjusted based on the occupancy information thus determined, and checking functions are carried out on the calls according to the checking frequency defined for the respective degree of occupancy.

Procedure for carrying out checking functions relating to safety management in a mobile communication network and/or in a wireless local network

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

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Oulu, Finland

Jyrki Suutari