Title:
RECEIVER
Document Type and Number:
Japanese Patent JP3505108
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a receiver capable of improving the quality of reception by eliminating interference signals from a received signal, including the interference signal and a spread signal that is spread and modulated by a CDMA system.
SOLUTION: In this receiver, a delay element 1, constituting a time difference means provides the time difference of one tip share or over of a spread code between two signals distributed from a received signal by the element 1, and a filter tap coefficient arithmetic control section 4 and an adaptive filter 2 constituting an extract means use, e.g. the LMS algorithm to extract a signal component with a correlation between the two signals provided with the time difference as an interference signal component and a sbutractor 3 configuring an elimination means eliminates the interference signal component from the received signal. Or in the case of another configuration, the interference signal is eliminated from I and Q components of the received signal.
Inventors:
Naoki Motoe
Masashi Naito
Masashi Naito
Application Number:
JP19729699A
Publication Date:
March 08, 2004
Filing Date:
July 12, 1999
Export Citation:
Assignee:
Hitachi Kokusai Electric Co., Ltd.
International Classes:
H04B1/707; H04B1/10; H04B1/71; (IPC1-7): H04B1/707; H04B1/10
Domestic Patent References:
| JP9116475A | ||||
| JP697914A | ||||
| JP9321734A | ||||
| JP10327092A | ||||
| JP6315018A | ||||
| JP10341219A | ||||
| JP2000244365A |
Other References:
本江 直樹、内藤 昌志，「ＣＤＭＡにおける狭帯域干渉除去方式の検討」，１９９９年電子情報通信学会通信ソサイエティ大会講演論文集 １，１９９９年 ８月１６日，Ｂ−５−５０，ｐ．２８５
Attorney, Agent or Firm:
Tatsuo Moriyama