Nokia Mobile Phones Limited

Tapio Saarinen

Hannu Petri Hietalahti

Petri Kotilainen

Kari Malmivirta

Olli Varjus

A mobile station comprises means ( ) for receiving downlink data from test equipment and means ( ) for sending uplink data to the test equipment. To test data channel operation a test loop ( ) is established to loop downlink data received from the test equipment back to the uplink direction to the test equipment. During the test, the reception of downlink data and transmission of uplink data in the mobile station are controlled by a relatively low protocol level.

Method and system for testing data channel functionality in a radio apparatus

A method and an arrangement for setting data transfer parameters in a data transfer system is disclosed for use preferably in a digital cellular system. A data transfer connection may be established by setting first the parameters related to speech connection and then, during the speech connection, the data transfer parameters can be changed, when necessary to be suitable for data transfer. Then, at call setup, no data is needed on whether the data transfer connection is possibly to be used for data transfer.

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Kello, Finland

Tapio Saarinen