Method for measuring radio channel quality and related equipment
AssigneeDibcom
InventorsJean-Philippe Sibers, Stéphane De Marchi
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Abstract
The present invention relates to a method for measuring radio channel quality in a radio communication system. In the method a modulated signal is received over a communication channel. The modulated signal has been modulated by using modulation parameters. A decoder decodes (305) the modulated signal and forms decoded data. The decoder creates (306) a decoder performance indicator (PS) that depends on the decoded data. Then a radio channel quality indicator (RCQI) is created, the radio channel quality indicator being essentially independent of the modulation parameters.
Claims9
A method for measuring radio channel quality in a radio communication system, wherein the method comprises the following steps:
- receiving a modulated signal over a radio channel, said modulated signal being modulated according to modulation parameters;
- decoding said modulated signal to form decoded data;
- creating a decoder performance indicator depending on said decoded data, wherein the decoder performance indicator is based on a pseudo-syndrome value associated with decoding of error-corrected codes;
- selecting a transfer function from a set of determined functions associated with the modulation parameters;
- and
- linearizing the decoder performance indicator by using said selected function to form a radio channel quality indicator (RCQI), wherein said radio channel quality indicator is substantially independent of said modulation parameters.
An integrated circuit arranged for measuring radio channel quality in a radio communication system, wherein the integrated circuit is comprises means for:
- receiving a modulated signal over a radio channel, said modulated signal being modulated according to modulation parameters;
- decoding said modulated signal to form decoded data;
- creating a decoder performance indicator depending on said decoded data, wherein the decoder performance indicator is based on a pseudo-syndrome value associated with decoding of error-corrected codes;
- selecting a transfer function from a set of determined functions associated with the modulation parameters;
- and
- linearizing the decoder performance indicator by using said selected function to form a radio channel quality indicator (RCQI), wherein said radio channel quality indicator is substantially independent of said modulation parameters.
A demodulator arranged for measuring radio channel quality in a radio communication system, wherein the demodulator comprises means for:
- receiving a modulated signal over a radio channel, said modulated signal being modulated according to modulation parameters;
- decoding said modulated signal to form decoded data;
- creating a decoder performance indicator depending on said decoded data, wherein the decoder performance indicator is based on a pseudo-syndrome value associated with decoding of error-corrected codes;
- selecting a transfer function from a set of determined functions associated with the modulation parameters;
- and
- linearizing the decoder performance indicator by using said selected function to form a radio channel quality indicator (RCQI), wherein said radio channel quality indicator is substantially independent of said modulation parameters.
Dependencies are inferred from the claim text.