Radio receiver and radio receiving method

A radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, comprising:

• a separator that separates the reception signals into a signal comprising +A symbol of the first signal and +A symbol of the second signal, and a signal comprising +A symbol of the first signal and −A symbol of the second signal;
• and
• an adder that performs in-phase additions of the respective separated signals.

A radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, comprising:

• a receiver that receives a third signal comprising +A symbol of the first signal and +A symbol of the second signal and a fourth signal comprising +A symbol of the first signal and −A symbol of the second signal among the reception signals by alternating the third signals and the fourth signals, by a plurality of symbols each at predetermined intervals;
• and
• an adder that performs in-phase additions of the third signals and in-phase additions of the fourth signals.

A communication terminal apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• an extractor that extracts a signal expressed with the first propagation coefficient and a signal expressed with the second propagation coefficient from the reception signals;
• and
• an adder that performs in-phase additions of the extracted signals.

A communication terminal apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• a separator that separates the reception signals into a signal comprising +A symbol of the first signal and +A symbol of the second signal, and a signal comprising +A symbol of the first signal and −A symbol of the second signal;
• and
• an adder that performs in-phase additions of the respective separated signals.

A communication terminal apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• a receiver that receives a third signal comprising +A symbol of the first signal and +A symbol of the second signal and a fourth signal comprising +A symbol of the first signal and −A symbol of the second signal among the reception signals by alternating the third signals and the fourth signals, by a plurality of symbols each at predetermined intervals;
• and
• an adder that performs in-phase additions of the third signals and in-phase additions of the fourth signals.

A base station apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• an extractor that extracts a signal expressed with the first propagation coefficient and a signal expressed with the second propagation coefficient from the reception signals;
• and
• an adder that performs in-phase additions of the extracted signals.

A base station apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• a separator that separates the reception signals into a signal comprising +A symbol of the first signal and +A symbol of the second signal, and a signal comprising +A symbol of the first signal and −A symbol of the second signal;
• and
• an adder that performs in-phase additions of the respective separated signals.

A base station apparatus equipped with a radio reception apparatus that receives signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, said radio reception apparatus comprising:

• a receiver that receives a third signal comprising +A symbol of the first signal and +A symbol of the second signal and a fourth signal comprising +A symbol of the first signal and −A symbol of the second signal among the reception signals by alternating the third signals and the fourth signals, by a plurality of symbols each at predetermined intervals;
• and
• an adder that performs in-phase additions of the third signals and in-phase additions of the fourth signals.

A radio reception method for receiving signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, comprising:

• an extracting step of extracting a signal expressed with the first propagation coefficient and a signal expressed with the second propagation coefficient from the reception signals;
• and
• an adding step of performing in-phase additions of the extracted signals.

A radio reception method for receiving signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, comprising:

• a separating step of separating the reception signals into a signal comprising +A symbol of the first signal and +A symbol of the second signal, and a signal comprising +A symbol of the first signal and −A symbol of the second signal;
• and
• an adding step of performing in-phase additions of the respective separated signals.

A radio reception method for receiving signals each having a first signal comprising only a no sign-inverted +A symbol sent through a propagation path with a first propagation coefficient and a second signal comprising a no sign-inverted +A symbol and a sign-inverted −A symbol sent through a propagation path with a second propagation coefficient, comprising:

• a receiving step of receiving a third signal comprising +A symbol of the first signal and +A symbol of the second signal and a fourth signal comprising +A symbol of the first signal and −A symbol of the second signal among the reception signals by alternating the third signals and the fourth signals, by a plurality of symbols each at predetermined intervals;
• and
• an adding step of performing in-phase additions of the third signals and in-phase additions of the fourth signals.