Title:
無線受信装置
Document Type and Number:
Japanese Patent JP3595493
Kind Code:
B2
Abstract:
The amount of calculations involved in the weight calculation is reduced in an adaptive array antenna CDMA receiver. A common correlation matrix is calculated by using the reception signals. Preferably, the inverse matrix of the common correlation matrix is also calculated. The common correlation matrix or the inverse matrix is used in common to the weight calculations for all the users or mobile stations. An inventive CDMA receiver includes a portion provided for each user. Each of the portions passes the reception signals through the respective matched filters to obtain respective despread signals; calculates a weight vector by using the common correlation matrix or the inverse matrix thereof; weighs the respective despread signals with the weight vector to obtain weighed despread signals; and combines the weighed despread signals into the transmission signal associated with each user.
Inventors:
Yoshitaka Hara
Application Number:
JP2000207849A
Publication Date:
December 02, 2004
Filing Date:
July 10, 2000
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01Q3/26; H01Q21/28; H04B1/707; H04B1/7115; H04B7/02; H04B7/08; (IPC1-7): H04B7/08; H01Q3/26; H04B7/02
Domestic Patent References:
| JP10070494A | ||||
| JP10075110A |
Other References:
原嘉孝,相関行列共通型CDMA基地局用アダプティブアレーアンテナ,電子情報通信学会論文誌,2001年 7月,Vol.J84-B,No.7,pp.1329-1343
Attorney, Agent or Firm:
Hideo Takahashi
Yasuo Asami
Yoshitaka Takeyama
Naoki Kubota
Yasuo Asami
Yoshitaka Takeyama
Naoki Kubota