JP2004350284A - 超広域通信方式を利用した室内近距離通信ネットワークシステム - Google Patents
超広域通信方式を利用した室内近距離通信ネットワークシステム Download PDFInfo
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- H04L12/00—Data switching networks
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- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
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Abstract
【解決手段】本発明の室内近距離通信ネットワークシステムは、データを超広域のアナログ信号に変換して無線転送すると共に、受信された超広域のアナログ信号をデジタル変換して出力する超広域モジュール122,222を有する遠隔端末機120,220と、担当地域内の遠隔端末機と超広域の無線通信を行い、遠隔断末機から転送された超広域のアナログ信号を光信号に変換するアクセスポイント140,240と、アクセスポイントと光通信し、アクセスポイントで変換された光信号が受信されると該光信号をデジタル信号に変換して目的地を判別し、その判別結果に基づいて該当目的地に転送する中央装置400と、を備えたことを特徴とする。
【選択図】図2
Description
120,220 第1,第2遠隔端末機(First, Second Remote Terminal)
122,222,440 超広域モジュール(UWB Module)
140,240 第1,第2アクセスポイント(First, Secomd Access Point)
142,242,420 光送受信モジュール(Optical Transmitter/Receiver Module)
144,244,422 発光部(Optical Transmitter)
146,246,424:受光部(Optical Receiver)
400 中央装置(Central Unit)
460 経路設定モジュール(Route Setting Module)
Claims (12)
- 室内近距離通信ネットワークシステムにおいて、
入力されるデータを超広域のアナログ信号に変換してアンテナを通じ無線転送すると共に、アンテナを通じ受信された超広域のアナログ信号をデジタル変換して出力する超広域モジュールを有する少なくとも一つの遠隔端末機と、
担当地域内の前記遠隔端末機と超広域の無線通信を行い、前記遠隔端末機から転送された超広域のアナログ信号を光信号に変換する少なくとも一つのアクセスポイントと、
前記アクセスポイントと有線で光通信し、前記アクセスポイントで変換された光信号が受信されると、該受信された光信号をデジタル信号に変換して目的地を判別し、その判別結果に基づいて該当目的地に前記デジタル信号を転送する中央装置と、を備えたことを特徴とする室内近距離通信ネットワークシステム。 - アクセスポイントは、
遠隔端末機から転送された超広域のアナログ信号を光信号に変換し、該変換後の光信号を中央装置に転送するアクセスポイント発光部と、
前記中央装置から転送された光信号を受信し、該受信した光信号を超広域のアナログ信号である電気信号に変換して担当地域内の遠隔端末機に無線転送するアクセスポイント受光部と、からなる請求項1に記載の室内近距離通信ネットワークシステム。 - 中央装置は、
アクセスポイント発光部による光信号を受信し、該受信した光信号を電気信号に変換して出力する中央装置光送受信モジュールと、
前記中央装置光送受信モジュールで変換された電気信号を受信し、該受信した電気信号をデジタル信号に変換する中央装置超広域モジュールと、
前記中央装置超広域モジュールで変換されたデジタル信号から該デジタル信号の目的地を判別し、その判別結果に基づいて前記デジタル信号の転送経路を設定する経路設定モジュールと、からなる請求項2に記載の室内近距離通信ネットワークシステム。 - 中央装置超広域モジュールは、経路設定モジュールで設定された転送経路情報が含まれたデジタル信号をアナログ形態の超広域の電気信号に変換して中央装置光送受信モジュールに転送し、
前記中央装置光送受信モジュールは、前記中央装置超広域モジュールで変換された電気信号を光信号に変換し、該変換後の光信号を、該当目的地の遠隔端末機のネットワークを管理するアクセスポイントに転送する請求項3に記載の室内近距離通信ネットワークシステム。 - 経路設定モジュールは、中央装置超広域モジュールにより変換されたデジタル信号から目的地を判別した結果、その目的地が当中央装置と連結されたアクセスポイントにより管理されるネットワーク内の遠隔端末機でない場合、当中央装置と連結され、前記目的地が所属する他のネットワークに転送経路情報を含めた前記デジタル信号を転送する請求項3に記載の室内近距離通信ネットワークシステム。
- 室内近距離通信ネットワークシステムを利用した通信方法において、
a)遠隔端末機に備えた超広域モジュールで、入力されるデータを超広域のアナログ信号に変換して無線転送すると共に、超広域のアナログ信号を受信してデジタル変換する段階、
b)前記遠隔端末機と超広域の無線通信を行うアクセスポイントで、前記遠隔端末機から転送される超広域のアナログ信号を光信号に変換する段階、
c)前記アクセスポイントと有線で光通信する中央装置で、前記アクセスポイントにより変換された光信号を受信し、該受信した光信号をデジタル信号に変換して目的地を判別し、その判別結果に基づいて該当目的地に前記デジタル信号を転送する段階、を含むことを特徴とする通信方法。 - b)段階は、
b−1)アクセスポイントの発光部で、遠隔端末機から転送される超広域のアナログ信号を光信号に変換し、該変換後の光信号を光ケーブルにより転送する段階、
b−2)アクセスポイントの受光部で、光ケーブルにより転送されてきた光信号を受信し、該受信した光信号を超広域のアナログ信号である電気信号に変換して担当地域内の遠隔端末機に無線転送する段階、を含む請求項6に記載の通信方法。 - c)段階は、
c−1)中央装置の光送受信モジュールで、アクセスポイントの発光部から光ケーブルを介して光信号を受信し、該受信した光信号を電気信号に変換する段階、
c−2)中央装置の超広域モジュールで、前記光送受信モジュールにより変換された電気信号を受信し、該受信した電気信号をデジタル信号に変換する段階、
c−3)経路設定モジュールで、前記超広域モジュールにより変換されたデジタル信号から該デジタル信号の目的地を判別し、その判別結果に基づいて前記デジタル信号の転送経路を設定する段階、を含む請求項7に記載の通信方法。 - c)段階は、
c−4)中央装置の超広域モジュールで、経路設定モジュールにより設定された転送経路情報が含まれたデジタル信号をアナログ形態の超広域の電気信号に変換して光送受信モジュールに転送する段階、
c−5)前記送受信モジュールで、前記超広域モジュールにより変換された電気信号を光信号に変換し、該当目的地の遠隔端末機のネットワークを管理するアクセスポイントに光ケーブルを介して転送する段階、を含む請求項8に記載の通信方法。 - c)段階は、
c−6)中央装置の経路設定モジュールで、超広域モジュールにより変換されたデジタル信号から目的地を判別した結果、該当目的地が当中央装置と連結されたアクセスポイントにより管理されるネットワーク内の遠隔端末機でない場合、当中央装置と連結され、前記目的地が所属する他のネットワークに転送経路情報を含めた前記デジタル信号を転送する段階を含む請求項8に記載の通信方法。 - 室内近距離通信ネットワークシステムにおいて、
1以上のノードとの通信地域をもつサブネットワークを形成する1以上のアクセスポイントと、該アクセスポイント及び他のネットワークと通信を行う中央装置と、を備えてなり、
前記アクセスポイントと該当ノードとは超広域通信により通信を行い、また、前記アクセスポイントと前記中央装置とは光ファイバを通じて通信を行い、そして、前記アクセスポイントは、前記中央装置により経路設定されて転送されてきた光信号を、該当ノードとの通信のためにアナログ超広域信号に変換する光送受信モジュールを備えることを特徴とする室内近距離通信ネットワークシステム。 - 中央装置と他のネットワークとはFTTH(Fiber To The Home)システムにより通信を行う請求項11に記載の室内近距離通信ネットワークシステム。
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- 2003-10-30 CN CNA2003101047191A patent/CN1574771A/zh active Pending
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2004
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JP2010514349A (ja) * | 2006-12-22 | 2010-04-30 | エルジーシー ワイヤレス,インコーポレイティド | ワイヤレス通信のためのリモートサービスエリアを提供するシステム及び方法 |
JP2008228293A (ja) * | 2007-03-02 | 2008-09-25 | Sigma Designs Inc | 有線と無線のuwbアプリケーションを組み合わせる装置及び方法 |
WO2022123952A1 (ja) * | 2020-12-07 | 2022-06-16 | 村田機械株式会社 | 通信装置、通信装置の制御方法及び通信システム |
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CN1574771A (zh) | 2005-02-02 |
KR100547880B1 (ko) | 2006-01-31 |
KR20040099845A (ko) | 2004-12-02 |
EP1480349A2 (en) | 2004-11-24 |
JP3965396B2 (ja) | 2007-08-29 |
EP1480349B1 (en) | 2014-05-07 |
US7366150B2 (en) | 2008-04-29 |
US20040233877A1 (en) | 2004-11-25 |
EP1480349A3 (en) | 2005-11-30 |
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