Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Klaus David Gradischnig

Hanns Juergen Schwarzbauer

Stefan Unger

The present invention presents a flexible method for source-based message routing in a network node, particularly also suitable for flexible load distribution of the traffic via a number of link sets terminating directly at an adjacent first network element. The method uses data structures which are often already available in existing systems or are simple to set up, of providing a number of link sets between two signaling points. A two-stage routing process is initiated based on the setting up of a message node, which supports a number of logical networks or signaling point codes. In the first stage a logical network is selected, in which the message is to be routed further. In the second stage the message is routed in the selected network.

Method and device for routing messages in SS7 networks

An apparatus, system and method for converting point codes in a signal transfer point, STP, in a telecommunications signaling system. The STP includes a point code conversion function () which converts point codes designating the origination and destination signaling points for a signaling message. The conversion function can be incorporated between the signaling link layer () and the network layer () of the message transfer part, MTP, functionality of the STP.

Signaling system of a signaling point

A node, which supports enhanced link sets, which includes two signaling point codes such that one of the signaling point codes is used to identify functions and MTP users which can make full use of a longer and unsegmented message length (i.e., in excess of 255 octets) which heretofore had to be segmented before being delivered to link sets supporting only messages according to Q.703.

Node supporting links having the ability to transfer longer messages than according to current MTP level 2

There may be applications where for IN-calls, one SCP begins processing a transaction for supporting a service but another SCP continues processing said transaction. The invention shows how such a continuation of processing can be carried out in cases where this can be solved in terms of protocol.

Method for controlling servers

Many communication protocols require a control circulation between transmitter and receiver such that the receiver is capable of controlling the transmission rate of the transmitter. This is frequently accomplished by communicating a transmission window. Inventively, the transmitter is informed of the currently desired transmission window even without the presence of message losses and without an explicit request on the part of the transmitter.

Method for controlling the message flow in a communication network

Operators of transfer points in the signalling network number 7 wish, on the one hand, to protect themselves against unauthorized use; on the other hand, these operators want to require fees for the use of the STP. The present invention solves this demand in a simple way in that it unites MTP charging with incoming linkset/DPC (desination point code) screening such that the accounts and their respective sub-accounts could be managed according to the evaluations of the covered traffic.

Management component of a signalling transfer point

A method and apparatus in which specific properties of individual signalling links in a signalling network are utilized without all signalling link sets having to have these specific properties. A fixed allocation is provided between a signalling link having the specific properties and a specific value of the signalling a signalling message.

Apparatus and method for selecting a signalling link

The transmission of signaling information between network nodes connected to one another ensues in separate signaling channels. A signaling protocol corresponding to a broadband ISDN layer model is respectively defined for such signaling information. Among other things, an ATM adaption layer (S-AAL) is defined therein which, in addition to having a general adaption sub-layer (AAL5), also has two service-specific sub-layers (SSCOP, SSCF) available to it. One of these service-specific sub-layers (SSCF) is thereby modified, as compared to ITU Recommendation Q.2140, each that, for a call set up, a communication over the respective signaling channel occurs between two network nodes connected to one another without a previous check of the transmission link.

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Gauting, Germany

Klaus David Gradischnig