Digital video broadcast-terrestrial (DVB-T) receiver interoperable with a GSM transmitter in a non-interfering manner using classmark change procedure

A device comprising a receiver and a transmitter,

• said receiver is configured to receive information in a first band of radio frequencies and comprising a first data processor configured to process the received information,
• said device further comprising a second data processor configured to control transmission from said transmitter in a different band of radio frequencies,
• said first data processor is further configured to generate a notification of reception by the receiver of information in the first band of radio frequencies and to determine, in response, whether the transmitter is operating in a second band of radio frequencies or in a third band of radio frequencies, and
• for the case where said second data processor determines that the transmitter is operating in the second band of radio frequencies, said second data processor is configured to cause the transmitter to transmit a request to change transmitter transmission frequencies from the second band of radio frequencies to the third band of radio frequencies that is predetermined to reduce interference with the reception of the information in the first band of radio frequencies as compared to the second band of radio frequencies.

A device comprising:

• means for receiving;
• means for transmitting;
• means for generating a notification of reception of information by the receiving means, the reception occurring in a first band of radio frequencies;
• responsive to the generated notification, means for determining whether the transmitting means is operating in a second band of radio frequencies or in a third band of radio frequencies;
• and
• responsive to the means for determining, means for requesting, for the case where it is determined that the transmitting means is operating in the second band of radio frequencies, a change of the transmitting means transmission frequencies from the second band of radio frequencies to the third band of radio frequencies that is predetermined to reduce interference with the reception of the information in the first band of radio frequencies as compared to the second band of radio frequencies.