Radio receiving apparatus and radio receiving method
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKenichi Miyoshi
Life of this patent
Estimating the term…
Abstract
A reception weight calculation section 203 calculates reception weights W1 and W2 every antenna using an optimal directional control method in order to improve interference cancellation effect, an arrival direction estimation section 204 estimates a direction of arrive of a received signal for each antenna to calculate steering vectors S1 and S2 for each antenna, and a replica weight calculation section 211 calculates replica weights Wr1 and Wr2 using the reception weights W1, W2 and steering vectors S1, S2.
Claims9
A radio receiving apparatus comprising:
- a first calculation section for calculating reception weighting factors with respect to received signals received by the respective antenna element composing an adaptive array antenna;
- an arrival direction estimation section for estimating directions of arrival of said received signals;
- a second calculation section for calculating weighting factors for a replica signal generation in accordance with said reception weighting factors and said directions of arrival;
- a replica signal generator for generating replica signals of each of said received signals using said weighting factors for a replica signal generation;
- and
- an eliminator for eliminating said replica signals from said received signals.
A mobile station apparatus having a radio receiving apparatus thereon, said radio receiving apparatus comprising:
- a first calculation section for calculating reception weighting factors with respect to received signals received by the respective antenna element composing an adaptive array antenna;
- an arrival direction estimation section for estimating directions of arrival of said received signals;
- a second calculation section for calculating weighting factors for a replica signal generation in accordance with said reception weighting factors and said directions of arrival;
- a replica signal generator for generating replica signals of each of said received signals using said weighting factors for a replica signal generation;
- and
- an eliminator for eliminating said replica signals from said received signals.
A base station apparatus having a radio receiving apparatus thereon, said radio receiving apparatus comprising:
- a first calculation section for calculating reception weighting factors with respect to received signals received by the respective antenna element composing an adaptive array antenna;
- an arrival direction estimation section for estimating directions of arrival of said received signals;
- a second calculation section for calculating weighting factors for a replica signal generation in accordance with said reception weighting factors and said directions of arrival;
- a replica signal generator for generating replica signals of each of said received signals using said weighting factors for a replica signal generation;
- and
- an eliminator for eliminating said replica signals from said received signals.
A radio receiving method comprising the steps of:
- calculating reception weighting factors with respect to received signals received by the respective antenna element composing an adaptive array antenna;
- estimating directions of arrival of said received signals;
- calculating weighting factors for a replica signal generation in accordance with said reception weighting factors and said directions of arrival;
- generating replica signals of each of said received signals using said weighting factors for a replica signal generation;
- and
- eliminating said replica signals from said received signals.
Dependencies are inferred from the claim text.