JP4440739B2 - 周波数共用型送信機 - Google Patents
周波数共用型送信機 Download PDFInfo
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- JP4440739B2 JP4440739B2 JP2004258472A JP2004258472A JP4440739B2 JP 4440739 B2 JP4440739 B2 JP 4440739B2 JP 2004258472 A JP2004258472 A JP 2004258472A JP 2004258472 A JP2004258472 A JP 2004258472A JP 4440739 B2 JP4440739 B2 JP 4440739B2
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- 230000005540 biological transmission Effects 0.000 claims description 81
- 238000004891 communication Methods 0.000 claims description 67
- 230000002093 peripheral effect Effects 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 23
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 8
- 230000004931 aggregating effect Effects 0.000 claims description 7
- 230000009365 direct transmission Effects 0.000 claims description 6
- 230000009349 indirect transmission Effects 0.000 claims description 6
- 238000012790 confirmation Methods 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 2
- 238000004220 aggregation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 25
- 238000004364 calculation method Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000007476 Maximum Likelihood Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 102100035353 Cyclin-dependent kinase 2-associated protein 1 Human genes 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Description
NW ネットワーク
110〜N10 送信機
111〜N11 周辺送信機交信部
112〜N12 信号生成部
113〜N13 アンテナ
120〜N20 受信機
121〜N21 アンテナ
122〜N22 信号復号部
11 周辺送信機探索部
11a 探索信号送信部
11b 確認信号受信部
12 情報交換部
12a パイロット信号送信部
12b パイロット信号受信部
12c 伝送路情報送信部
12d 伝送路情報受信部
13 交換情報提供部
13a パイロット信号保持部
13b 伝送路情報推定部
14 信号生成情報提供部
14a 送信フィルタ計算部
R ルータ
D データ集約装置
Claims (10)
- 同一の周波数帯域を用いる複数システムの送信機および受信機が存在するネットワーク環境下で使用される周波数共用型送信機であって、
周辺に存在する送信機を探索する機能および探索された周辺送信機と交信して情報交換を行う機能を有する周辺送信機交信手段と、
上記の情報交換により得られた情報に基づき、通信の時間分割以外の干渉キャンセル技術を適用して送信信号を生成する信号生成手段とを備え、
上記周辺送信機交信手段は、探索信号を送信し、周辺に存在する送信機から送信される確認信号を受信した場合に、少なくともパイロット信号を含む情報を送信し、周辺に存在する送信機から送信される少なくともパイロット信号を含む情報を受信し、受信した情報を上記信号生成手段に渡す
ことを特徴とする周波数共用型送信機。 - 上記周辺送信機交信手段は無線通信媒体により周辺送信機と交信を行うことを特徴とする請求項1に記載の周波数共用型送信機。
- 上記周辺送信機交信手段は有線通信媒体により周辺送信機と交信を行うことを特徴とする請求項1に記載の周波数共用型送信機。
- 上記周辺送信機交信手段はネットワーク上に設置されたデータ集約装置を用いて周辺送信機と集約的に交信を行うことを特徴とする請求項1に記載の周波数共用型送信機。
- 上記周辺送信機交信手段は複数のシステムのうちの一群の送信機とのみ交信を行うことを特徴とする請求項1乃至4のいずれか一項に記載の周波数共用型送信機。
- 上記の情報交換の対象として、情報ビット列、伝送路情報、パイロット信号、同期情報、信号生成方法情報、信号生成に必要なパラメタの少なくとも一つを含むことを特徴とする請求項1乃至5のいずれか一項に記載の周波数共用型送信機。
- 上記の情報交換の対象として、無線変調方式情報、無線帯域幅情報、中心周波数情報の少なくとも一つを含むことを特徴とする請求項1乃至6のいずれか一項に記載の周波数共用型送信機。
- 上記の送信信号の生成に必要なパラメタをネットワーク上の一つ以上の送信機で計算することを特徴とする請求項1乃至7のいずれか一項に記載の周波数共用型送信機。
- 上記の送信信号の生成に必要なパラメタをネットワーク上に存在するデータ集約装置で計算することを特徴とする請求項1乃至7のいずれか一項に記載の周波数共用型送信機。
- 上記の情報交換の対象に各システムのパイロット信号を含める手段と、
当該パイロット信号に基づいて自己の送信機を一端とする直接伝送路情報を推定する手段と、
他のシステムから自己の送信機を一端に含まない間接伝送路情報を取得する手段とを備え、
上記直接伝送路情報および間接伝送路情報から干渉キャンセル技術を適用して送信信号を生成することを特徴とする請求項1乃至9のいずれか一項に記載の周波数共用型送信機。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004258472A JP4440739B2 (ja) | 2004-09-06 | 2004-09-06 | 周波数共用型送信機 |
EP05255327.8A EP1633053B1 (en) | 2004-09-06 | 2005-08-31 | Apparatus and method for interference cancellation in a wireless communications system |
US11/215,041 US7937041B2 (en) | 2004-09-06 | 2005-08-31 | Shared frequency transmitter |
KR1020050082239A KR100722417B1 (ko) | 2004-09-06 | 2005-09-05 | 주파수 공용형 송신기 |
CNB2005101026052A CN100574133C (zh) | 2004-09-06 | 2005-09-06 | 频率共享型发射机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004258472A JP4440739B2 (ja) | 2004-09-06 | 2004-09-06 | 周波数共用型送信機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006074672A JP2006074672A (ja) | 2006-03-16 |
JP4440739B2 true JP4440739B2 (ja) | 2010-03-24 |
Family
ID=35457018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004258472A Expired - Fee Related JP4440739B2 (ja) | 2004-09-06 | 2004-09-06 | 周波数共用型送信機 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7937041B2 (ja) |
EP (1) | EP1633053B1 (ja) |
JP (1) | JP4440739B2 (ja) |
KR (1) | KR100722417B1 (ja) |
CN (1) | CN100574133C (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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FI20075859A0 (fi) | 2007-11-30 | 2007-11-30 | Nokia Corp | Järjestelmien välinen häiriökontrolli |
JP5278893B2 (ja) * | 2008-02-28 | 2013-09-04 | 独立行政法人情報通信研究機構 | コグニティブ無線通信ネットワークシステムおよびコグニティブ通信方法 |
US8295395B2 (en) * | 2008-09-30 | 2012-10-23 | Apple Inc. | Methods and apparatus for partial interference reduction within wireless networks |
JP5264542B2 (ja) * | 2009-02-05 | 2013-08-14 | 三菱電機株式会社 | 基地局装置、移動局装置および基地局制御装置、ならびに移動通信システム |
JP5546041B2 (ja) * | 2009-04-27 | 2014-07-09 | シャープ株式会社 | 干渉抑圧無線通信システムおよび干渉抑圧無線通信装置 |
US9008220B2 (en) * | 2010-12-07 | 2015-04-14 | Ceragon Networks Ltd. | Frequency reuse in wireless point-to-point communication systems |
US10588101B2 (en) * | 2012-01-06 | 2020-03-10 | Qualcomm Incorporated | Long term evoluton (LTE) user equipment relays having a licensed wireless or wired backhaul link and an unlicensed access link |
US9414379B2 (en) * | 2013-01-21 | 2016-08-09 | Fujitsu Limited | Wireless communication precoder determination |
Family Cites Families (25)
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JPH09121193A (ja) * | 1995-10-24 | 1997-05-06 | Fujitsu Ltd | 無線通信システム並びに基地局及び移動局 |
JP3381783B2 (ja) * | 1998-03-03 | 2003-03-04 | 日本電気株式会社 | セルラシステムの送信電力制御方法、基地局装置、制御局、および移動局 |
JP4369581B2 (ja) * | 1999-12-17 | 2009-11-25 | パナソニック株式会社 | 基地局装置および干渉抑圧送信方法 |
GB0007337D0 (en) * | 2000-03-28 | 2000-05-17 | Koninkl Philips Electronics Nv | Radio communication system |
AU2001245913A1 (en) | 2000-03-28 | 2001-10-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Apparatus and methods for selective interference mitigation |
JP2001339758A (ja) * | 2000-05-26 | 2001-12-07 | Matsushita Electric Ind Co Ltd | 無線基地局装置及び無線通信方法 |
JP2001358651A (ja) * | 2000-06-16 | 2001-12-26 | Yrp Mobile Telecommunications Key Tech Res Lab Co Ltd | 移動通信システム、基地局装置および送信電力制御方法 |
US6546043B1 (en) * | 2000-06-29 | 2003-04-08 | Trw Inc. | Method and apparatus for cancellation of multiple access interference in a code division multiple access (CDMA) communication system |
US6526264B2 (en) * | 2000-11-03 | 2003-02-25 | Cognio, Inc. | Wideband multi-protocol wireless radio transceiver system |
US6985545B2 (en) * | 2000-12-26 | 2006-01-10 | Nortel Networks Limited | Apparatus and method to provide spectrum sharing for two or more RF signals occupying an overlapping RF bandwidth |
US7248638B1 (en) * | 2001-03-23 | 2007-07-24 | Lsi Logic | Transmit antenna multi-mode tracking |
JP3607632B2 (ja) * | 2001-03-29 | 2005-01-05 | 株式会社東芝 | 無線通信装置及び無線通信制御方法 |
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AU2002337707A1 (en) * | 2001-09-28 | 2003-04-14 | At And T Corp. | Method and apparatus for reducing interference in multiple-input-multiple-output (mimo) systems |
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JP3992489B2 (ja) * | 2001-12-12 | 2007-10-17 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信方法及びその装置 |
JP3912118B2 (ja) * | 2002-01-21 | 2007-05-09 | ソニー株式会社 | 無線通信システム、無線通信端末および制御局 |
JP3898533B2 (ja) * | 2002-03-11 | 2007-03-28 | シャープ株式会社 | 無線通信システム |
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JP2004207839A (ja) * | 2002-12-24 | 2004-07-22 | Nec Corp | 無線リソース管理システムとその方法及びそれに用いる管理装置、基地局及び端末 |
US7386057B2 (en) * | 2003-02-20 | 2008-06-10 | Nec Corporation | Iterative soft interference cancellation and filtering for spectrally efficient high-speed transmission in MIMO systems |
JP2004259123A (ja) * | 2003-02-27 | 2004-09-16 | Nec Micro Systems Ltd | Rfidシステムおよびrfid用プログラム |
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JP2006165775A (ja) * | 2004-12-03 | 2006-06-22 | Nec Corp | 無線基地局装置及び無線送受信機、無線通信システム |
-
2004
- 2004-09-06 JP JP2004258472A patent/JP4440739B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-31 US US11/215,041 patent/US7937041B2/en not_active Expired - Fee Related
- 2005-08-31 EP EP05255327.8A patent/EP1633053B1/en not_active Expired - Fee Related
- 2005-09-05 KR KR1020050082239A patent/KR100722417B1/ko not_active IP Right Cessation
- 2005-09-06 CN CNB2005101026052A patent/CN100574133C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20060050811A1 (en) | 2006-03-09 |
EP1633053A1 (en) | 2006-03-08 |
CN1747351A (zh) | 2006-03-15 |
EP1633053B1 (en) | 2015-05-27 |
KR100722417B1 (ko) | 2007-05-29 |
CN100574133C (zh) | 2009-12-23 |
JP2006074672A (ja) | 2006-03-16 |
US7937041B2 (en) | 2011-05-03 |
KR20060051025A (ko) | 2006-05-19 |
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