Patent ID: 7127265
Filing Date: 2006-10-24
Classification: H04W

Abstract:
1. System for transmitting information in a digital radio network system ( 21 ) between at least two modes of operation, which may be a direct mode operation (DMO) between two terminal devices ( a trunked mode operation (TMO) supporting distribution of network resources and operating in the physical radio network system ( and wherein the transmission takes place with the aid of a special gateway unit ( 22 ), wherein the gateway unit ( 22 ) listens to each or to a chosen mode of operation (DMO, TMO), receives the transmission occurring in one mode of operation (TMO, DMO), and transmits the received transmission to the other mode of operation (DMO, TMO), characterized in that the gateway unit ( 22 ) is formed of two terminal devices ( 12 . 1 , 12 . 2 ) supporting each mode of operation and whose data transfer interface ( 23 . 3 *, 23 . 3 ′) have an audio input (AUDIO In) and output (AUDIO Out) as well as a receiving indication output (RX On) and a transmission connection input (PTT), and the terminal devices' ( 12 . 1 , 12 . 2 ) receiving indication output (RX On) is connected to the transmission connection input (PTT) of another terminal device ( 12 . 2 , 12 . 1 ) and the terminal devices' ( 12 . 1 , 12 . 2 ) audio output (AUDIO Out) is connected to the audio input (AUDIO In) of another terminal device ( 12 . 2 , 12 . 1 ).