Method for receiving a broadcast signal comprising a pilot signal and an information signal
A method for receiving a broadcast signal by an access network to a plurality of terminals of a two-way wireless communication system. An information signal is formed from the broadcast information destined for the terminals. A pilot signal is formed and a broadcast signal including the information signal SI 1 and the pilot signal is transmitted. The information signal and the pilot signal are transmitted on different respective central frequencies having a predefined frequency gap.
1. A method for receiving, using a terminal, a broadcast signal transmitted by an access network of a bidirectional wireless communication system, wherein the broadcast signal comprises a pilot signal and an information signal SI 1 formed from broadcast information destined for a plurality of terminals, the information signal SI 1 and the pilot signal SP are transmitted on different respective center frequencies having a predetermined frequency gap ΔF 1 , the reception method comprises steps of:
non-linear filtering of a signal received by the terminal;
searching for the broadcast signal from a signal obtained, after the non-linear filtering of the received signal, on the predetermined frequency gap ΔF 1 , the broadcast signal being detectable when the signal obtained on the predetermined frequency gap ΔF 1 satisfies a predefined detection criterion; and
extracting the broadcast information from the detected broadcast signal.
2. The method as claimed in claim 1 , wherein the step of extracting the broadcast information performs the extraction on the signal obtained, after non-linear filtering, on the predetermined frequency gap ΔF 1 .
3. A terminal to receive a broadcast signal transmitted by an access network of a bidirectional wireless communication system, the broadcast signal comprises a pilot signal and an information signal SI 1 formed from broadcast information destined for a plurality of terminals, the information signal SI 1 and the pilot signal SP are transmitted on different respective center frequencies having a predetermined frequency gap ΔF 1 , the terminal comprises a processor configured to:
perform non-linear filtering of a signal received by the terminal;
search for the broadcast signal from a signal obtained, after non-linear filtering of the received signal, on the predetermined frequency gap ΔF 1 , the broadcast signal being detectable when the signal obtained on the predetermined frequency gap ΔF 1 satisfies a predefined detection criterion; and
extract the broadcast information from the detected broadcast signal.