Telefonaktiebolaget Lm Ericsson (Publ)

Greger Isaksson

Ingemar Lindgren

Sven-Rune Olofsson

In a radio system of the digital simultaneous type comprising a number of radio transmitters, information is transmitted on the same nominal frequency. The system is also intended to transmit specific test information, with the intention of achieving optimal performance of measuring receivers. Receivers, either measuring receivers or conventional receivers, register their geographical location in the system and the reception conditions of different stations with the aid of the test information. The measuring result is returned to the transmitter stations, to decide which measures shall be taken. When this return of the measuring result from the reception area is automatic, changes in the transmission parameters will be effected automatically and continuously while taking prevailing traffic situations into account.

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Pite.ang., Sweden

Greger Isaksson