JP3863882B2 - 多重セクターインビルディング中継システム - Google Patents
多重セクターインビルディング中継システム Download PDFInfo
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- JP3863882B2 JP3863882B2 JP2004024821A JP2004024821A JP3863882B2 JP 3863882 B2 JP3863882 B2 JP 3863882B2 JP 2004024821 A JP2004024821 A JP 2004024821A JP 2004024821 A JP2004024821 A JP 2004024821A JP 3863882 B2 JP3863882 B2 JP 3863882B2
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- 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
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- 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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Description
120、440 分配器
130、132、134、450〜455 スレーブモジュール
210 マスター送信部
211 減衰器
212、215、223、225、314、321、324 増幅器
214、221、223、311、313、316、322、325 帯域通過フィルター
317 電力増幅器
213、222、225、312、315、323 ミキサー
220 マスター受信部
310 スレーブ送信部
320 スレーブ受信部
Claims (8)
- インビルディングシステムのセクター信号送信装置において、
基地局から伝送される搬送波周波数の高周波信号を複数のアンテナで受信し、受信されたそれぞれの高周波信号に対して、各セクター別に割り当てた互いに周波数の異なる送信中間周波数信号をミキシングすることによって生成される、互いに中心周波数が異なるようにした複数のセクター信号を、同一線路に出力するマスター送信部と、
建物内の各セクター別に設けられたアンテナを介して移動端末機から受信される搬送波周波数の高周波信号に対して、各セクター別に割り当てられた互いに周波数の異なる受信中間周波数信号をミキシングすることによって生成される、互いに中心周波数が異なるようにした複数のセクター信号を、同一線路に出力する多数個のスレーブ受信部と、を備えることを特徴とするインビルディングシステムのセクター信号送信装置。 - 前記マスター送信部は、
基地局から伝送される搬送波周波数の高周波信号を受信し、受信した高周波信号に対して、各セクター別に割り当てられた互いに周波数の異なる送信中間周波数信号をミキシングすることによって生成される、互いに中心周波数が異なるセクター信号を出力する多数のミキシング部と、
前記多数のミキシング部から出力されるセクター信号を増幅し同一線路に出力する多数の増幅部と、を備えてなる請求項1記載のインビルディングシステムのセクター信号送信装置。 - 前記ミキシング部は、
基地局から伝送される搬送波周波数の高周波信号を受信し、受信した高周波信号を減衰させ、減衰された高周波信号を出力する減衰器と、
前記減衰器で減衰された高周波信号に対して、各セクター別に割り当てられた互いに周波数の異なる送信中間周波数帯信号をミキシングすることによって、互いに中心周波数の異なる送信中間周波数帯信号に変換されたセクター信号をそれぞれの増幅部に出力するミキサーと、を備えてなる請求項2記載のインビルディングシステムのセクター信号送信装置。 - インビルディングシステムのセクター信号受信装置において、
互いに中心周波数が異なる複数のセクター信号を同一線路を介してマスター送信部から受信し、受信された信号に対して、各セクター別に割り当てられた互いに周波数が異なる中間周波数帯信号をミキシングした後、自己のセクターに割り当てられた中心周波数を有するセクター信号のみを帯域通過フィルターによって抽出し、さらに、抽出されたセクター信号に対して、所定周波数の信号をミキシングすることによって搬送波周波数の高周波信号に復元し、この高周波信号を各セクター別に設けられたアンテナを介して移動端末機に伝送する各セクター別に配置された多数個のスレーブ送信部と、
各セクター別に互いに中心周波数の異なる複数のセクター信号を、同一線路を介してスレーブ受信部から受信し、受信した信号に対して、各セクター別に割り当てられた互いに周波数が異なる中間周波数帯信号をミキシングした後、帯域通過フィルターによって各セクター別のセクター信号に分離し、さらに、分離されたセクター信号に対して、所定周波数の信号をミキシングすることによって搬送波周波数の高周波信号に復元し、復元された高周波信号のそれぞれを複数のアンテナを介して基地局に出力するマスター受信部と、を備えることを特徴とするインビルディングシステムのセクター信号受信装置。 - 前記多数のスレーブ送信部は、
各セクター別に互いに中心周波数が異なる複数のセクター信号を受信し、受信された信号に対して、各セクター別に割り当てられた互いに異なる第1周波数と所定周波数である第2周波数とを引いた信号をミキシングした後、帯域通過フィルターによって自己のセクターに割り当てられた中心周波数を有するセクター信号を抽出するセクター信号抽出部と、
前記セクター信号抽出部で抽出されたセクター信号に対して、所定周波数の信号をミキシングすることによって搬送波周波数の高周波信号に復元しアンテナに出力する高周波信号生成部と、を備えてなる請求項4記載のインビルディングシステムのセクター信号受信装置。 - 前記セクター信号抽出部は、
互いに中心周波数が異なるセクター信号を受信し不必要な信号を除去する第1帯域通過フィルターと、
前記第1帯域通過フィルターでフィルターリングされたセクター信号に対して、各セクター別に割り当てられた互いに異なる第1周波数と所定周波数である第2周波数とを引いた信号をミキシングして出力するミキサーと、
前記ミキサーの出力信号に対し、自己に割り当てられた中心周波数を有する信号を抽出する第2帯域通過フィルターと、を備えてなる請求項5記載のインビルディングシステムのセクター信号受信装置。 - インビルディング中継システムを用いて、建物内の複数のセクターに基地局からの高周波信号を提供する方法であって、
前記基地局から伝送される搬送波周波数の高周波信号を複数のアンテナで受信し、受信された高周波信号を減衰・増幅する段階と、
前記減衰・増幅された高周波信号に対して、各セクター別に割り当てた互いに周波数の異なる送信中間周波数帯域の信号をミキシングすることによって生成される、互いに中心周波数が異なるようにした複数のセクター信号のそれぞれを、第1デュプレックサーを介して同一伝送線路に多重出力する段階と、
前記同一伝送線路を介して出力される多数のセクター信号を、多数のセクターのそれぞれに配置されたスレーブ送信部に分配する段階と、
前記スレーブ送信部において、受信された複数のセクター信号に対して、各セクター別に割り当てられた互いに周波数が異なる中間周波数帯信号をミキシングした後、自己のセクターに割り当てられた中心周波数を有するセクター信号のみを帯域通過フィルターによって抽出する段階と、
前記抽出されたセクター信号に対して、所定周波数の信号をミキシングすることによって搬送波周波数の高周波信号に復元した後、その復元された高周波信号を、各セクター別に配置されたアンテナを介して移動端末機に伝送する段階と、を含む建物内の複数のセクターに基地局からの高周波信号を提供する方法。 - インビルディング中継システムを用いて、建物内の複数のセクターに基地局からの高周波信号を提供する方法であって、
多数個のスレーブ受信部のそれぞれで、建物内の各セクターに配置されたアンテナを介して受信される搬送波周波数の高周波信号に対して、各セクター別に割り当てた互いに周波数の異なる受信中間周波数帯域の信号をミキシングすることによって、各セクター別に互いに中心波長が異なるようにした複数のセクター信号を生成する段階と、
前記スレーブ受信部のそれぞれが、生成したセクター信号を同一伝送線路を介して第1デュプレックサーに出力する段階と、
前記第1デュプレックサーを介して受信されるセクター信号に対して、各セクター別に割り当てられた互いに周波数が異なる中間周波数帯信号をミキシングした後、帯域通過フィルターによって各セクター別のセクター信号に分離し、分離された各セクター信号に対して、所定周波数の信号をミキシングすることによって搬送波周波数の高周波信号に復元した後、復元された高周波信号を多数のアンテナを介してセクター別に基地局に出力する段階と、を含む建物内で複数のセクターに基地局からの高周波信号を提供する方法。
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KR1020030006149A KR20040069652A (ko) | 2003-01-30 | 2003-01-30 | 다중 섹터 인빌딩 중계 시스템 |
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JP (1) | JP3863882B2 (ja) |
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CN1290360C (zh) | 2006-12-13 |
US20040185794A1 (en) | 2004-09-23 |
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KR20040069652A (ko) | 2004-08-06 |
JP2004236341A (ja) | 2004-08-19 |
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