Nokia Siemens Networks Gmbh & Co Kg

Nokia Siemens Networks S.p.a.

Nokia Solutions and Networks Oy

Rossella De Benedittis

Angelo Centonza

Hanns Juergen Schwarzbauer

Maciej Pakulski

Mathias Pieroth

Uwe Herrmann

Patryk Pisowacki

Gennaro Ciro Malafronte

Michael Heilig

Gianluca Durastante

A method controls transport network layer congestion detection in HSDPA systems. The method involves detecting, at an SRNC, a condition requiring the disabling, at a Node B, of measurements performed on certain fields of a data frame for detecting congestion for certain packet flows; sending, from the SRNC to the Node B, a command for disabling said measurements for the concerned packet flows; and resetting, at the Node B, any measurement performed until reception of said command for disabling the congestion detection.

Controlling congestion detection in HSDPA systems

In one aspect, a method to collect performance measurements a digital cellular communication network is provided. Radio links of the active set are set up both inside the serving cell and towards one or more adjacent cells belonging to adjacent clusters controlled by respective radio network controllers. Controllers are connected to one another in order to act either as master of the active set in communication with the core network or slave for managing directly controlled radio resources and executing requests from the master devoted to radio link set up or deletion. The master radio controller, when calling a slave for requesting a specific radio link deletion from the active set, also sends to it some information about the cause of that deletion. The slave radio controller when receives the cause information increments a performance measurement counter associated to the specific cause and to the specific cell the radio link deletion is requested for. Operatively, the 3GPP RNSAP Radio Link Deletion Request message is upgraded to include an Element used to specify the 'Cause' of the deletion. Periodically the network operator recovers the counters to associate the specific radio link failure events to the specific cells.

Method to decentralize the counting of abnormal call release events on a per cell base in digital cellular communication networks

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Milan, Italy

Rossella De Benedittis