Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Pekka Rissanen is active.

Publication


Featured researches published by Pekka Rissanen.


Archive | 2002

Transmission of voice over IP in wireless telecommunications system

Jaakko Sundquist; Peeter Pruuden; Pekka Rissanen; Jani Ekman


Archive | 2000

Handover of a mobile station from an internal cellular communication system to an external cellular communication system

Hannu Honkala; Timo Hänninen; Roy Mickos; Kai Närvänen; Markku Rautiola; Pekka Rissanen; Tapio Siik; Petri Uosukainen


Archive | 2004

System and method for allowing subscribers to make internal calls while roaming to other networks

Raili Numminen; Pekka Rissanen; Kai Närvänen


Archive | 2000

Method and arrangement for controlling calls in a hybrid cellular telecommunication system

Timo Hänninen; Markku Rautiola; Tapio Siik; Petri Uosukainen; Hannu Honkala; Pekka Rissanen; Kai Närvänen; Roy Mickos; Jukka Liimatainen


Archive | 1988

Method and a device for the manufacturing of an optical coupler

Awnashilal Barkharam Sharma; Ari Virekunnas; Pekka Rissanen


Archive | 2000

Handover in a communication system

Hannu Honkala; Timo Hänninen; Roy Mickos; Kai Närvänen; Markku Rautiola; Pekka Rissanen; Tapio Siik; Petri Uosukainen


Archive | 2000

Method and device for carrying out security procedures involving mobile stations in hybrid cellular telecommunication systems

Hannu Honkala; Markku Rautiola; Tapio Siik; Petri Uosukainen; Kai Närvänen; Pekka Rissanen; Timo Hänninen; Roy Mickos


Archive | 2000

Network frequency setting

Janne Kallio; Tero Rantala; Markku Rautiola; Pekka Rissanen; Kari Tuovinen; Jan Parkkinen; Alexander Esser; Philip Wesby


Archive | 2000

A COMMUNICATIONS SYSTEM WITH INTERSYSTEM LOCATION MANAGEMENT

Roy Mickos; Pekka Rissanen; Peeter Pruuden


Archive | 2001

Protocole de transmission de la voix par internet dans un systeme de telecommunication sans fil

Jaakko Sundquist; Peeter Pruuden; Pekka Rissanen; Jani Ekman

Collaboration


Dive into the Pekka Rissanen's collaboration.

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