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1. 发明专利

JP4076202B2 Spread spectrum signal receiver and a receiving method 有权
公开(公告)号：JP4076202B2
公开(公告)日：2008-04-16
申请号：JP2000238052
申请日：2000-08-07
申请人：富士通株式会社
发明人：正中村 , 英三石津
IPC分类号： H04L27/22 , H04B1/10 , H04B1/707 , H04L25/02 , H04L25/06
CPC分类号： H04B1/7097 , H04B1/7103 , H04B1/7115 , H04B2201/70701 , H04B2201/709709 , H04L25/0224 , H04L25/067
摘要： A CDMA receiver is disclosed wherein (1) a despreader despreads a receive signal to thereby demodulate a control-data signal and a transmit-data signal; (2) a channel estimation unit derives a channel estimation value from a pilot signal that is contained in the despread control-data signal; (3) a channel compensation unit performs channel compensation of the transmit-data and control-data signals based upon the channel estimation value; (4) a power calculation unit calculates power of the transmit-data signal and power of the control-data signal after the channel compensation thereof and calculates a power ratio representing the ratio of the calculated power of the transmit-data signal to the calculated power of the control-data signal; (5) a signal-level changing unit raises, on the basis of the power ratio, the level of whichever of the signals has the lower power; and (6) a decoder executes decoding processing based upon the signal the level of which has been changed by the signal-level changing unit.

2. 发明专利

JPWO2004066523A1 適応制御装置有权
公开(公告)号：JPWO2004066523A1
公开(公告)日：2006-05-18
申请号：JP2004567128
申请日：2003-01-21
申请人：富士通株式会社
发明人：吉田　誠 , 吉田　　誠 , 英三石津 , 英三石津
IPC分类号： H04B7/26 , H04B7/08 , H04Q7/20
CPC分类号： H04B7/086
摘要：本発明は、アレーアンテナの指向性を適応的に制御し、移動端末の各々に連続的に追従することを可能にする適応制御装置を提供することを目的とする。本発明よれば、無線装置のアレーアンテナの指向性を変化させる適応制御装置であって、前記無線装置から送信された無線周波数信号を受信する受信機及び前記無線装置間の距離、並びに前記無線装置に対する前記受信機の相対的な移動速度及び移動方向を含むパラメータを設定する設定手段と、前記受信機又は前記無線装置の受信電力が、所定の期間経過後にどの程度変化するかを評価する評価手段と、前記アレーアンテナに含まれる複数のアンテナ素子についての複数の重み係数を調整する重み制御手段を有する。前記受信電力の変化量が、前記受信機及び前記無線装置間の距離に依存しない一定の範囲内にあるように、前記指向性を変化させる。

3. 发明专利

JP4139233B2 Radio receiver 有权
公开(公告)号：JP4139233B2
公开(公告)日：2008-08-27
申请号：JP2003014431
申请日：2003-01-23
申请人：富士通株式会社
发明人：英三石津
IPC分类号： H04B1/707 , H04B1/712
摘要： PROBLEM TO BE SOLVED: To highly maintain transmission quality by flexible and quick adaptation to various characteristics of each path regarding a radio receiver highly maintaining transmission quality by synthesizing receiving waves reaching through the paths at an accepting station for a radio transmission system in which a radio transmission line is formed as the set of a plurality of paths. SOLUTION: The radio receiver is constituted so as to have a plurality P of detection means 11-1 to 11-P for discretely detecting the receiving waves through the plurality P of paths formed among a transmission terminal 10 and the detection means and generating detection signals, a plurality P of monitor means 12-1 to 12-P discretely monitoring levels of the receiving waves extending through the plurality P of paths, and a synthesizing means 13 for synthesizing the detection signals by summing products of the detection signals generated by the means 11-1 to 11-P and levels monitored by the means 12-1 to 12-P. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JPWO2006092856A1 マルチキャリア通信方法及びそれに使用される基地局及び移動局审中-公开
公开(公告)号：JPWO2006092856A1
公开(公告)日：2008-08-07
申请号：JP2007505775
申请日：2005-03-02
申请人：富士通株式会社
发明人：英三石津 , 英三石津 , 栄治藤田 , 栄治藤田
IPC分类号： H04J1/00 , H04Q7/36
CPC分类号： H04L1/20 , H04L5/0007 , H04L5/001 , H04L5/006 , H04L5/0091 , H04L5/06 , H04W72/048 , H04W72/085
摘要：本発明は、同一エリア内で異なる複数のキャリア周波数を用いて移動局と基地局の間の通信を行うマルチキャリア通信方法であって、前記移動局で前記複数のキャリア周波数それぞれの受信品質相当値を検出し、前記受信品質相当値を基に通信に用いるキャリア周波数を決定することにより、受信品質が高いキャリア周波数で通信が行われ、受信品質を向上できる。

5. 发明专利

JP5532067B2 Mobile station 有权
公开(公告)号：JP5532067B2
公开(公告)日：2014-06-25
申请号：JP2012054271
申请日：2012-03-12
申请人：富士通株式会社
发明人：英三石津 , 栄治藤田
IPC分类号： H04W72/04 , H04W24/02 , H04W48/16 , H04W48/18 , H04W88/06

6. 发明专利

JP5348042B2 Multicarrier communication method and a multicarrier communication system and a base station used therein 有权
公开(公告)号：JP5348042B2
公开(公告)日：2013-11-20
申请号：JP2010072980
申请日：2010-03-26
申请人：富士通株式会社
发明人：英三石津 , 栄治藤田
IPC分类号： H04J1/00 , H04W72/04 , H04W72/08
摘要： PROBLEM TO BE SOLVED: To provide a multicarrier communication method, multicarrier communication system and base station used therefor, wherein reception quality can be improved. SOLUTION: The present invention relates to a multicarrier communication method for performing communication between a mobile station and a base station using a plurality of different carrier frequencies within the same area, including detecting reception quality corresponding values of the plurality of carrier frequencies at the mobile station, and determining the carrier frequency to be used for communication based on the reception quality corresponding values. Thus, communication is performed at a carrier frequency of high reception quality and reception quality can be improved. COPYRIGHT: (C)2010,JPO&INPIT

7. 发明专利

JP5181773B2 Communication device, a transmitter, a receiver, a communication method and a communication program 有权
公开(公告)号：JP5181773B2
公开(公告)日：2013-04-10
申请号：JP2008084849
申请日：2008-03-27
申请人：富士通株式会社
发明人：浩史砥綿 , 栄治藤田 , 英三石津 , 正博田中 , 浩明妹尾
IPC分类号： H04J11/00

8. 发明专利

JP4657197B2 Wireless communication connection destination selection method and apparatus 有权
公开(公告)号：JP4657197B2
公开(公告)日：2011-03-23
申请号：JP2006341554
申请日：2006-12-19
申请人：富士通株式会社
发明人：学永野 , 英三石津 , 民生芝
IPC分类号： H04W48/20 , H04M1/725 , H04M11/00 , H04W16/28 , H04W36/30 , H04W36/36
CPC分类号： H04W36/30 , H04W36/36

9. 发明专利

JP4311132B2 Receiving apparatus in Ofdm transmission scheme 有权
公开(公告)号：JP4311132B2
公开(公告)日：2009-08-12
申请号：JP2003307855
申请日：2003-08-29
申请人：富士通株式会社
发明人：吉田　　誠 , 英三石津
IPC分类号： H04J11/00 , H04B1/10 , H04B7/08
摘要： PROBLEM TO BE SOLVED: To reduce an inter-symbol interference and an inter-carrier interference caused by a delay wave exceeding a guard interval (GI) in a receiving device by an OFDM transmission system. SOLUTION: When the delay wave exceeding GI is detected, an ISI replica generating part 202 generates an ISI replica from a pilot or a demodulation result of one preceding symbol. A subtractor 203 subtracts the ISI replica from a reception signal, cancels a symbol component, performs ISI compensation, demodulation, and IFFT calculation, and outputs a temporary demodulation symbol. A restoration replica generating part 207 generates a restoration replica from the temporary demodulation symbol. An adder 208 adds the restoration replica to an ISI compensation signal, performs ICI compensation, demodulation and IFFT calculation, and outputs a temporary determination symbol. A present symbol replica generating part 212 generates a present symbol replica from the temporary determination symbol. The subtractor 213 subtracts the present symbol replica from the ISI compensation signal so as to extract only a desired wave component. COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP4121407B2 Ofdm receiver for demodulating the symbol 有权
公开(公告)号：JP4121407B2
公开(公告)日：2008-07-23
申请号：JP2003078717
申请日：2003-03-20
申请人：富士通株式会社
发明人：吉田　　誠 , 英三石津
IPC分类号： H04J11/00 , H04L25/03 , H04L27/26
CPC分类号： H04L27/2647 , H04L2025/03414

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