Transmission power control method of measuring Eb/N0 after weighted signals are combined

A CDMA communication device comprising:

• a plurality of rake receivers, each of said receivers for demodulating a received signal for each path and combining the respective demodulated data after the respective data are delayed based on a delay time;
• a plurality of first weighting means, each of said first weighting means for weighting the demodulated data after the combination output from each of said plurality of rake receivers;
• a first combining means for combining the signals weighted by said plurality of first weighting means;
• and
• an Eb/N0 measuring means for measuring an Eb/N0 of the demodulated data combined by said first combining means.

A CDMA communication device for decoding a plurality of received signals received at different antennas, comprising:

• a plurality of rake receivers, each of said receivers for detecting each of said received signals for each path, delaying demodulated data which are the detection result based on a set delay time, and then combining and outputting the demodulated data;
• a multipath searcher for acquiring reception 10 delay information which is information on a delay time among respective paths contained in said received signals;
• a rake receiver control means for setting the delay time for said rake receivers respectively based on the reception delay information acquired by said multipath searcher;
• a plurality of first weighting means, each of said first weighting means for weighting the demodulated data output from each of said rake receivers;
• a first combining means for combining the signals weighted by said first weighting means into one signal;
• and
• an Eb/N0 measuring means for measuring an Eb/N0 of the demodulated data combined by said first combining means.

A method for controlling transmission power for producing transmission power control information for controlling transmission power with a plurality of signals received at different antennas, said method comprising the steps of:

• detecting each of said received signals for each path at a respective rake receiver, delaying demodulated data which are the detection result for each path based on a set delay time, and then combining the demodulated data to produce combined demodulated data;
• acquiring reception delay information which is information on a delay time among respective paths contained in said received signals;
• setting said delay time based on said acquired reception delay information;
• weighing said combined demodulated data from each rake receiver respectively and then combining the combined demodulated data from each respective rake receiver into one demodulated data;
• and
• measuring Eb/N0 of the one demodulated data after the combination and producing said transmission power control information based on said measured Eb/N0.

A method for controlling transmission power for producing transmission power control information for controlling transmission power with a plurality of signals received at different antennas, said method comprising the steps of:

• detecting each of said received signals for each path at a respective rake receiver, delaying demodulated data which are the detection result for each path based on a set delay time, weighing the demodulated data for each path, and then combining the demodulated data to produce combined demodulated data;
• acquiring reception delay information which is information on a delay time among respective paths contained in said received signals;
• setting said delay time based on said acquired reception delay information;
• weighing said combined demodulated data from each rake receiver respectively and then combining the combined demodulated data from each respective rake receiver into one demodulated data;
• and
• measuring Eb/N0 of the one demodulated data after the combination and producing said transmission power control information based on said measured Eb/N0.