Radio receiver and receiving method for controlling the beam-width of an antenna
AssigneeNtt Docomo, Inc.
InventorsKoji Maeda, Yuji Aburakawa, Toru Otsu
Life of this patent
Estimating the term…
Abstract
A radio receiver is provided with a beam-width-variable antenna that receives a radio signal and is capable of changing the beam-width; an interference canceller for removing interference waves from the received radio signal and outputting an interference-wave-removed signal; a measuring device for measuring reception quality of the received signal based on the interference-wave-removed signal; and a beam-width controller for controlling the beam-width of the beam-width-variable antenna based on the reception quality from the measuring device.
Claims14
A radio receiver comprising:
- a beam-width-variable antenna that receives a radio signal and is capable of changing a beam-width thereof;
- an interference canceller for removing interference waves from the received radio signal and outputting an interference-wave-removed signal;
- a measuring device for measuring reception quality of the received signal based on the interference-wave-removed signal;
- and
- a beam-width controller for controlling the beam-width of the beam-width-variable antenna based on the reception quality received from the measuring device.
A radio receiving method, comprising the steps of:
- receiving a radio signal using a beam-width-variable antenna capable of changing a beam-width thereof;
- removing interference waves from the received radio signal and outputting an interference-wave-removed signal;
- measuring reception quality of the received signal based on the interference-wave-removed signal;
- and
- controlling the beam-width of the beam-width-variable antenna based on the measured reception quality.
Dependencies are inferred from the claim text.