Nokia Mobile Phones Limited

Nokia Corporation

Tapani Ekman

Seppo Rosnell

Jukka Tapio Ranta

Timo T Lindqvist

Risto V&auml;is&auml;nen

Jouko H&auml;kk&auml;nen

In a wireless communication terminal having a flashlight, the power consumption is decreased by means of enabling a transmitter to transmit during transmission periods, and disabling the transmitter outside the transmission periods. Moreover, a supply of voltage from a common power supply to a flashlight unit is disabled during the transmitting periods of the transmitter.

Wireless terminal having a flashlight

For establishing a local communication connection between a terminal ( ) of a cellular radio system and an accessory device ( ), a radio channel is identified ( ) on which there is no perceivable radio traffic in the cellular radio system, and a communication connection is established ( ) between the terminal and the accessory device on the identified radio channel. The radio channel is preferably a code channel of a CDMA system.

Accessory interface within a multiple channel radio apparatus

A linear power amplifier arrangement is used for providing a selectable amount of amplification to a radio frequency signal to be amplified. The arrangement comprises a first parallel amplifier branch and a second parallel amplifier branch and means for conducting the radio frequency signal to be amplified selectably to one of the parallel amplifier branches. Additionally it comprises in the first parallel amplifier branch a series connection of a predistorter and a nonlinear amplifier, where said predistorter is arranged to compensate for the nonlinearity of said nonlinear amplifier.

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Salo, Finland

Tapani Ekman