发明名称 |
Interference canceller for use in a multibeam-antenna CDMA communication system |
摘要 |
A multistage interference canceller equipment and interference canceller method for use, for example, in CDMA (Code Division Multiple Access) multibeam-antenna communication system includes in each stage an interference canceller unit which has a replica signal generator which generates from an input beam signal a first interference replica signal and outputs a first error signal, and an interference removal unit which receives from another replica signal generator a second interference replica signal, multiplies that second interference replica signal by conversion coefficients and subtracts an obtained signal from the first interference replica signal to produce a second error signal so that an error signal is generated for each signal beam from the interference replica signals of a local signal beam and other signal beams to eliminate interference. <IMAGE> |
申请公布号 |
EP0849888(A2) |
申请公布日期 |
1998.06.24 |
申请号 |
EP19970122151 |
申请日期 |
1997.12.16 |
申请人 |
FUJITSU LIMITED |
发明人 |
TANAKA, YOSHINORI;KOBAYAKAWA, SHUJI;SEKI, HIROYUKI;TODA, TAKESHI;TSUTSUI, MASAFUMI |
分类号 |
H04B1/10;H04B1/707;H04B1/7107;H04B7/08;H04B7/26;H04W16/28;H04W88/02 |
主分类号 |
H04B1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|