发明名称 |
Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system |
摘要 |
The invention provides a technique for measurement of a signal to interference power ratio wherein an SIR can be measured with a higher degree of accuracy without being influenced by a fast fading environment or an inter-station interference or noise environment. A signal to interference power ratio measuring apparatus includes a plurality of interference replica signal production sections for performing inverse diffusion processing for input signals originating from a received signal, performing temporary decision of information symbols regarding the input signals, performing diffusion processing again for the input signals and outputting resulting signals as interference replica signals, a plurality of subtractors for subtracting the interference replica signals from the received signal, an interference power detection section for detecting interference power information, a signal power detection section for detecting signal power information, and a signal to interference power ratio calculation section for calculating signal to interference power ratios from the interference power information and the signal power information.
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申请公布号 |
US6032026(A) |
申请公布日期 |
2000.02.29 |
申请号 |
US19980026322 |
申请日期 |
1998.02.19 |
申请人 |
FUJITSU LIMITED |
发明人 |
SEKI, HIROYUKI;TANAKA, YOSHINORI;KOBAYAKAWA, SHUJI;TODA, TAKESHI;TSUTSUI, MASAFUMI |
分类号 |
G01R29/00;G01R29/08;H04B1/707;H04B7/005;H04B7/26;H04B17/00;H04J13/00;(IPC1-7):H04B15/00 |
主分类号 |
G01R29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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