JP4610361B2 - 無線中継装置 - Google Patents
無線中継装置 Download PDFInfo
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- JP4610361B2 JP4610361B2 JP2005029556A JP2005029556A JP4610361B2 JP 4610361 B2 JP4610361 B2 JP 4610361B2 JP 2005029556 A JP2005029556 A JP 2005029556A JP 2005029556 A JP2005029556 A JP 2005029556A JP 4610361 B2 JP4610361 B2 JP 4610361B2
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- signal
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- base station
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Description
無線通信システムの無線基地局の配下に、建物が存在し、該建物の中の移動端末は、各建物の中に設けられた無線中継装置を経由して、該無線基地局と無線通信を行う無線通信システムにおける無線中継装置であって、
無線基地局からの下り信号を受信する第1アンテナと、
該第1アンテナからの出力を減衰する第1減衰器と、
該第1減衰器の出力を出力する第2アンテナと、
該移動端末からの信号を受信する該第2アンテナと、
該第2アンテナからの出力を減衰する第2減衰器と、
を備え、該第1減衰器の出力を該第2アンテナで出力する
ことを特徴とする無線中継装置。
該第2減衰器は該第2のアンテナに受信された、通信を行う該移動端末以外からの電波の強度により制御される
ことを特徴とする付記1記載の無線中継装置。
32−1,2 移動端末;
52−1,2,3,54−1,2,3 セル
82−1,2,3 移動端末; 84−1,2,3 アンテナ; 86−1,2,3 増幅器; 87−1,2,3 可変減衰器; 88 合成/分配器; 89 伝送媒体; 90 無線基地局;
94−1〜N 信号処理部; 882 分配器; 884 合成器; 942 伝送路; 944 増幅器; 946,950,960 帯域通過濾波器; 948 サーキュレータ; 962,972 電力検出器; 964,974 差動増幅器;
1202 ノードB; 1204,1214,1220 サーキュレータ; 1206,1212,1218,1234 帯域通過濾波器; 1208 合成器; 1210 PHS用の無線基地局; 1216 アクセスポイント; 1222,1232 分配器; 1230 合成器; 1236,1238 減衰器;
1301 アンテナ; 1302,1303,1307,1310,1314,1340 帯域通過濾波器; 1304 サーキュレータ; 1305,1309,1316,1318,1319 スイッチ; 1306ハイブリッド部; 1312,1320,1342 可変減衰器; 1322,1344 検波器; 1324,1346 差動増幅器; 1326 制御信号作成部; 1331〜1334 信号処理部; 1350 PHS復調回路; 1352 スロット同期回路; 1358 検波器; 1360 比較器;
1402−1〜4 発振器; 1314−1〜4 帯域通過濾波器; 1320−1〜4 可変減衰器; 1404−1〜4,1406−1〜4 ミキサ; 1332−1〜4 検波器; 1324−1〜4 差動増幅器;
142−A,B,C,D 移動端末; 144−A,B,C 中継装置; 146−1,2 移動端末;
1501,1522 アンテナ; 1502,1520 サーキュレータ; 1504,1518,1530,1542,1550,1560 帯域通過濾波器; 1506,1510,1532,1536,1552,1562 可変減衰器; 1508,1514,1534,1540 ミキサ; 1554,1556,1564 検波器; 1558 制御信号作成部;
1702 アクセスポイント; 1704 検波器; 1706 比較器;
1802−1〜4,1804−1〜4 アンテナ; 1902−1〜4,1904−1〜4 アクセスポイント;
2101 PHS用の無線基地局; 2102 無線機; 2103 伝送システム; 2104 サーキュレータ; 2106,2116 電光変換部; 2108,2118 光電変換部; 2110 スイッチ; 2112 アンテナ; 2114 移動端末; 2120 制御信号線;
2302 サンプリング回路; 2303 クロック抽出回路; 2304 排他的論理和回路; 2306 低域通過濾波器; 2308 増幅器; 2310 電圧制御発振器; 2312 遅延回路; 2314 シフトレジスタ; 2316 パターン検出回路; 2318 同期パターン出力回路; 2320,2326,2332,2338 カウンタ; 2322,2334 フリップフロップ; 2324,2336 シフトレジスタ; 2330 スイッチ
Claims (1)
- 電力制御機能を有する移動端末と無線基地局とを中継する無線中継装置であって、
前記無線基地局からの下り信号を受信する第1アンテナと、
前記第1アンテナからの出力を減衰させる第1減衰器と、
前記第1減衰器からの信号に基づく信号を前記移動端末に対して出力すると共に、前記移動端末からの上り信号を受信する第2アンテナと、
前記第2アンテナにより受信された上り信号から、前記移動端末が用いる第1の周波数帯域とは異なる第2の周波数帯域の信号を濾波する濾波器と、
前記濾波器により濾波された信号が、基準値を超えるか否かを判別し、前記濾波された信号が基準値を超えると判別した場合、前記上り信号から濾波された前記第1の周波数帯域の信号を減衰させるための制御信号を生成する制御信号生成部と、
前記制御信号に基づいて、前記濾波された信号が基準値を超えると判別した場合、前記上り信号から濾波された前記第1の周波数帯域の信号を、前記無線基地局で観測されるノイズレベルが上昇しないように減衰させる第2減衰器と、
備える無線中継装置であって、
前記第1アンテナは、前記第2減衰器により減衰された信号に基づく信号を前記無線基地局に対して出力する
ことを特徴とする無線中継装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005029556A JP4610361B2 (ja) | 2005-02-04 | 2005-02-04 | 無線中継装置 |
US11/166,060 US7881659B2 (en) | 2005-02-04 | 2005-06-24 | Radio frequency repeater |
EP05253980A EP1689099B1 (en) | 2005-02-04 | 2005-06-27 | Radio frequency repeater |
CN200510087506.1A CN1815919A (zh) | 2005-02-04 | 2005-07-20 | 射频中继器 |
CN200910175534.7A CN101656561B (zh) | 2005-02-04 | 2005-07-20 | 射频中继器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005029556A JP4610361B2 (ja) | 2005-02-04 | 2005-02-04 | 無線中継装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006217409A JP2006217409A (ja) | 2006-08-17 |
JP4610361B2 true JP4610361B2 (ja) | 2011-01-12 |
Family
ID=36273393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005029556A Expired - Fee Related JP4610361B2 (ja) | 2005-02-04 | 2005-02-04 | 無線中継装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7881659B2 (ja) |
EP (1) | EP1689099B1 (ja) |
JP (1) | JP4610361B2 (ja) |
CN (2) | CN1815919A (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060046645A1 (en) * | 2004-08-25 | 2006-03-02 | Ogilvie Scott A | Cell phones that communicate over a network of other cell phones as well as base stations |
JP4965880B2 (ja) * | 2006-03-30 | 2012-07-04 | 富士通コンポーネント株式会社 | アンテナ装置 |
US8126392B2 (en) * | 2006-08-18 | 2012-02-28 | Fujitsu Limited | System and method for implementing a multi-radio wireless network |
US20080081555A1 (en) * | 2006-10-03 | 2008-04-03 | Wireless Data Communication Co., Ltd | Unified communication repeater |
JP5164704B2 (ja) * | 2008-07-17 | 2013-03-21 | 株式会社日立国際電気 | 中継局装置及び中継局における一斉通信後追い通知方法 |
TWI379536B (en) * | 2008-08-06 | 2012-12-11 | Asustek Comp Inc | Apparatus and method for transporting signal |
KR101473758B1 (ko) * | 2008-11-28 | 2014-12-17 | 삼성전자주식회사 | 복수의 안테나를 구비한 릴레이를 경유하여 데이터를 전송하는 데이터 전송 시스템 |
KR101624907B1 (ko) * | 2010-03-16 | 2016-06-08 | 삼성전자주식회사 | 광대역 무선통신 시스템에서 실내 기지국의 송신 전력 제어 장치 및 방법 |
WO2011156465A1 (en) | 2010-06-09 | 2011-12-15 | Andrew Llc | Uplink noise minimization |
CN102480318B (zh) * | 2010-11-25 | 2014-04-16 | 武汉虹信通信技术有限责任公司 | 一种同轴结构微功率直放站的实现装置 |
CN103369586B (zh) * | 2012-03-28 | 2018-04-20 | 中兴通讯股份有限公司 | 一种处理基站上行外部干扰的方法及装置 |
CN104579509B (zh) * | 2014-12-11 | 2018-04-03 | 国家无线电监测中心检测中心 | 一种用于iot的射频链路切换装置及测试方法 |
WO2018191432A1 (en) | 2017-04-11 | 2018-10-18 | Wilson Electronics, Llc | Signal booster with coaxial cable connections |
EP3451532A1 (en) | 2017-08-31 | 2019-03-06 | Wilson Electronics, LLC | Protection of power amplifiers in a signal booster |
CN109442684A (zh) * | 2018-10-18 | 2019-03-08 | 张馨月 | 实现室内无线信号覆盖的无线中继器以及空调系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000031879A (ja) * | 1998-07-15 | 2000-01-28 | Kokusai Electric Co Ltd | 無線中継増幅装置 |
JP2000269879A (ja) * | 1999-03-16 | 2000-09-29 | Kokusai Electric Co Ltd | 中継増幅装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3717599B2 (ja) * | 1996-07-04 | 2005-11-16 | 株式会社日立国際電気 | 無線中継増幅装置 |
JP3833787B2 (ja) * | 1997-08-07 | 2006-10-18 | 富士通株式会社 | 基地局の送受信装置 |
US6658263B1 (en) * | 1999-12-21 | 2003-12-02 | Lucent Technologies Inc. | Wireless system combining arrangement and method thereof |
JP3574057B2 (ja) * | 2000-09-04 | 2004-10-06 | 三洋電機株式会社 | 無線受信システム及び方法 |
JP3443094B2 (ja) | 2000-12-27 | 2003-09-02 | 株式会社東芝 | 無線通信方法および無線通信装置 |
US20030003917A1 (en) * | 2001-06-29 | 2003-01-02 | Copley Rich T. | Wireless communication system, apparatus and method for providing wireless communication within a building structure |
US6868254B2 (en) * | 2001-08-30 | 2005-03-15 | Qualcomm Incorporated | Repeater with diversity transmission |
JP4247091B2 (ja) | 2002-10-31 | 2009-04-02 | 池田食研株式会社 | 皮膚老化防止剤 |
US7009573B2 (en) | 2003-02-10 | 2006-03-07 | Calamp Corp. | Compact bidirectional repeaters for wireless communication systems |
US7263072B2 (en) * | 2003-04-16 | 2007-08-28 | Kyocera Wireless Corp. | System and method for selecting a communication band |
US7474882B2 (en) * | 2003-11-26 | 2009-01-06 | Accton Technology Corporation | System and method for RF gain control |
-
2005
- 2005-02-04 JP JP2005029556A patent/JP4610361B2/ja not_active Expired - Fee Related
- 2005-06-24 US US11/166,060 patent/US7881659B2/en not_active Expired - Fee Related
- 2005-06-27 EP EP05253980A patent/EP1689099B1/en not_active Expired - Fee Related
- 2005-07-20 CN CN200510087506.1A patent/CN1815919A/zh active Pending
- 2005-07-20 CN CN200910175534.7A patent/CN101656561B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000031879A (ja) * | 1998-07-15 | 2000-01-28 | Kokusai Electric Co Ltd | 無線中継増幅装置 |
JP2000269879A (ja) * | 1999-03-16 | 2000-09-29 | Kokusai Electric Co Ltd | 中継増幅装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1689099B1 (en) | 2013-02-13 |
CN101656561B (zh) | 2013-01-02 |
EP1689099A1 (en) | 2006-08-09 |
US20060178106A1 (en) | 2006-08-10 |
JP2006217409A (ja) | 2006-08-17 |
CN101656561A (zh) | 2010-02-24 |
CN1815919A (zh) | 2006-08-09 |
US7881659B2 (en) | 2011-02-01 |
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