Base station apparatus and direction-of-arrival estimating method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorMasayuki Hoshino
Life of this patent
Estimating the term…
Abstract
Signals including a plurality of components representing a phase rotation between antenna elements by combining signals, which have arrived through each path of a first to an m-th paths, for every antenna are generated in RAKE combining sections 104-1 to 104-n; one angle spectrum is obtained in one direction-of-arrival estimation section 105 provided in each communication terminal, using the signals generated in the RAKE combining sections 104-1 to 104-n; and a plurality of directions-of-arrival are estimated en bloc by detecting a plurality of peak positions on the angle spectrum.
Claims8
A base station apparatus comprising:
- a receiver that receives same signals, which have arrived from a plurality of directions through different paths, using an array antenna having a plurality of antenna elements;
- a first combiner that combines a plurality of said same signals, which have been received through each antenna element, for every antenna element;
- and
- a direction-of-arrival estimator that estimates said plurality of directions at once, using signals combined by said first combiner.
A direction-of-arrival estimating method comprising:
- receiving same signals, which have arrived from a plurality of directions through different paths, using an array antenna having a plurality of antenna elements;
- generating signals including a plurality of components representing a phase rotation between antenna elements by combining a plurality of said same signals which have been received through each antenna element;
- obtaining one angle spectrum, using said generated signals;
- and
- estimating said plurality of directions at once by detecting a plurality of peak positions of said angle spectrum.
A base station apparatus comprising:
- a receiver that receives same signals, which have arrived from a plurality of directions through different paths, using an array antenna having a plurality of antenna elements;
- a first combiner, provided per antenna element, that combines a plurality of said same signals, which have been received through each antenna element, for every antenna element;
- and
- a direction-of-arrival estimator that estimates said plurality of directions at once, using signals combined by said first combiner,
- wherein said first combiner combines said plurality of said same signals while retaining components representing a phase rotation between said plurality of antenna elements with one of said antenna elements being a reference point.
A direction-of-arrival estimating method comprising:
- receiving same signals, which have arrived from a plurality of directions through different paths, using an array antenna having a plurality of antenna elements;
- combining a plurality of said same signals which have been received through each antenna element for every antenna element while retaining components representing a phase rotation between said plurality of antenna elements with one of said antenna elements being a reference point;
- obtaining one angle spectrum using said combined signals;
- and
- estimating said plurality of directions at once by detecting a plurality of peak positions of said angle spectrum.
Dependencies are inferred from the claim text.