JP3695999B2

JP3695999B2 - Wireless method and wireless device

Info

Publication number: JP3695999B2
Application number: JP21587599A
Authority: JP
Inventors: 一三町田
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-07-29
Filing date: 1999-07-29
Publication date: 2005-09-14
Anticipated expiration: 2019-07-29
Also published as: JP2001044893A

Description

【０００１】
【発明の属する技術分野】
本発明は、無線方法および無線装置に関し、特に冗長系設備を有する無線装置における現用設備から予備設備へ無線を切り替える無線方法に関する。
【０００２】
【従来の技術】
図１９は、従来の無線装置における現用から予備用への切替方法をブロック図で示す。図１９に示される無線装置は、変調部、復調部、送信周波数変換部、受信周波数変換部、送信高周波部および受信高周波部により構成されており、場所の異なる屋内と屋外との２地点に分離された構成単位である屋内装置(以下、「ＩＤＵ」という)と屋外装置（以下、「ＯＤＵ」という）とを設置し、両装置の間を伝送ケーブルで結ぶものである。図１３において、符号１はベースバンド（Ｂａse Ｂand : ＢＢ）信号を入力するＢＢ信号入力端子、２は入力した信号を分配する信号分配器ＨＹＢ、３ａは入力した信号を変調する現用の変調部１、３ｂは現用の変調部１（３ａ）が故障等した場合に切り替えて用いられる予備用の予備変調部、７ａは入力した信号の周波数を搬送周波数帯へ変換する現用の送信周波数変換部１、７ｂは現用の送信周波数変換部１（７ａ）が故障等した場合に切り替えて用いられる予備用の予備送信周波数変換部、５ａは現用の変調部１（３ａ）と現用の送信周波数変換部１（７ａ）との間を接続する現用の現用伝送ケーブル、５ｂは予備変調部２（３ｂ）と予備送信周波数変換部２（７ｂ）との間を接続する予備用の予備伝送ケーブル、８ａは入力した信号を増幅する現用の送信高周波部１、８ｂは現用の送信高周波部１（８ａ）が故障等した場合に切り替えて用いられる予備用の予備送信高周波部、９は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、１０はＲＦ（Radio Frequency : ＲＦ）信号を出力するＲＦ出力端子、１１はＲＦ信号を入力するＲＦ入力端子、１２は入力した信号を分配する信号分配器ＨＹＢ、１３ａは入力した信号を増幅する現用の受信高周波部１、１３ｂは現用の受信高周波部１（１３ａ）が故障等した場合に切り替えて用いられる予備用の予備受信高周波部、１４ａは入力した信号を中間周波数（Intermediate Frequency : ＩＦ）信号へ変換する現用の受信周波数変換部１、１４ｂは現用の受信周波数変換部１（１４ａ）が故障等した場合に切り替えて用いられる予備用の予備受信周波数変換部、１８ａは入力した信号を復調する現用の復調部１、１８ｂは現用の復調部１（１８ａ）が故障等した場合に切り替えて用いられる予備用の予備復調部、１６ａは現用の受信周波数変換部１（１４ａ）と現用の復調部１（１８ａ）との間を接続する現用の現用伝送ケーブル、１６ｂは予備用の予備受信周波数変換部２（１４ｂ）と予備用の予備復調部２（１８ｂ）との間を接続する予備用予備伝送ケーブル、１９は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、２０はＢＢ信号を出力するＢＢ出力端子である。
【０００３】
次に送信側のＩＤＵとＯＤＵとの動作について説明する。図１９に示されるように、ＢＢ入力端子１より入力したＢＢ信号は、信号分配器ＨＹＢ２により２つに分配されて現用変調部１（３ａ）でＩＤＵ出力信号へと変調される。ＩＤＵ出力信号は、現用伝送ケーブル５ａに接続されたＯＤＵ側の現用送信周波数変換部１（７ａ）で搬送周波数帯に変換され、さらに現用送信高周波部１（８ａ）で増幅される。この現用変調部１（３ａ）から現用送信高周波部１（８ａ）までの系統を送信現用ルートと呼ぶ。同様にして、予備変調部２（３ｂ）で変調されたＩＤＵ出力信号は、予備伝送ケーブル５ｂに接続されたＯＤＵ側の予備送信周波数変換部２（７ｂ）を経て予備送信高周波部２（８ｂ）で増幅される。この予備変調部２（３ｂ）から予備送信高周波部２（８ｂ）までの系統を送信予備ルートと呼ぶ。切替スイッチＳＷ９は、送信現用ルートが故障等の場合に予備送信ルートへ瞬間的に自動切替を行う。ＲＦ出力端子１０には、現用送信ルートの信号または予備送信ルートの信号のいずれかの信号が出力される。
【０００４】
上述の送信側の自動切替の手順について詳細に説明する。変調部１（３ａ）または予備変調部２（３ｂ）から出力される故障検出信号と、送信周波数変換部１（７ａ）または予備送信周波数変換部２（７ｂ）から出力される故障検出信号と、送信高周波部１（８ａ）または予備送信高周波部２（８ｂ）から出力される故障検出信号とは、ＩＤＵまたはＯＤＵのいずれかまたは両方にある警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ９へ伝送され切替制御が行われる。このため警報信号と切替制御信号とを伝送するための警報用伝送ケーブル（不図示）がＩＤＵとＯＤＵとの間に設けられている。この警報用伝送ケーブルは伝送ケーブル５ａ、予備伝送ケーブル５ｂとは別に設けられているか、または伝送ケーブル５ａ等と共用されている。
【０００５】
次に受信側のＩＤＵとＯＤＵとの動作について説明する。ＲＦ入力端子１１より入力したＲＦ信号は、信号分配器ＨＹＢ１２により２つに分配されて現用の受信高周波部１（１３ａ）で増幅された後、現用の受信周波数変換部１（１４ａ）でＩＦ帯信号（ＯＤＵ出力信号）へ変換される。ＯＤＵ出力信号は、現用伝送ケーブル１６ａに接続されたＩＤＵ側の現用の復調部１（１８ａ）に伝送され、ＢＢ信号へ復調される。この現用の受信高周波部１（１４ａ）から現用の復調部１（１８ａ）までの系統を受信現用ルートと呼ぶ。同様にして、予備受信高周波部２（１３ｂ）で増幅され予備受信周波数変換部２（１４ｂ）でＩＦ帯信号に変換されたＯＤＵ出力信号は、予備伝送ケーブル１６ｂに接続されたＩＤＵ側の予備復調部２（１８ｂ）へ伝送され、ＢＢ信号に復調される。この予備受信高周波部２（１４ｂ）から予備復調部２（１８ｂ）までの系統を受信予備ルートと呼ぶ。切替スイッチＳＷ１９は、現用受信ルートが故障等した場合に予備受信ルートへ瞬間的に自動切替を行う。ＢＢ出力端子には、現用受信ルートの信号または予備受信ルートの信号のいずれかの信号が出力される。
【０００６】
上述の受信側の自動切替の手順について詳細に説明する。受信高周波部１（１３ａ）または予備受信高周波部２（１３ｂ）から出力される故障検出信号と、受信周波数変換部１（１４ａ）または予備受信周波数変換部２（１４ｂ）から出力される故障検出信号と、復調部１（１８ａ）または予備復調部２（１８ｂ）から出力される故障検出信号とは、ＯＤＵまたはＩＤＵのいずれかまたは両方にある警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ１９へ伝送され切替制御が行われる。このため警報信号と切替制御信号とを伝送するための警報用伝送ケーブル（不図示）がＩＤＵとＯＤＵとの間に設けられている。この警報用伝送ケーブルは伝送ケーブル１６ａ、予備伝送ケーブル１６ｂとは別に設けられているか、または伝送ケーブル１６ａ等と共用されている。
上述のように、従来の無線装置におけるＩＤＵとＯＤＵとの間は、送信側では現用送信ルートと予備送信ルートとが各々伝送ケーブル５ａと予備伝送ケーブル５ｂとにより一対一で接続され、受信側では現用受信ルートと予備受信ルートとが各々伝送ケーブル１６ａと伝送ケーブル１６ｂとにより一対一で接続されていた。
【０００７】
図２０は、従来の他の無線装置のブロック図を示す。図２０に示される無線装置は、図１９に示される無線装置における現用系のみの構成要素を有するものである。詳しくは、図１９において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、伝送ケーブル５ｂ、送信変換部２（７ｂ）、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなり、受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、受信変換部２（１４ｂ）、送信ケーブル１６ｂ、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【０００８】
【発明が解決しようとする課題】
上述のように、ＩＤＵとＯＤＵとを有する従来の無線装置は、ＩＤＵとＯＤＵとの間の伝送ケーブルも含めて現用送信または受信ルート、予備送信または受信ルートを構成していた。この結果、ＩＤＵとＯＤＵとの間に伝送ケーブルが４本必要となり、ＩＤＵ、ＯＤＵ等の据え付け工事の複雑化と設備全体の高コスト化を招き、多数の伝送ケーブルのメンテナンスが複雑化するという問題があった。そこで、本発明の目的は、上記問題を解決するためになされたものであり、ＩＤＵとＯＤＵとの間の伝送ケーブルを１本または２本とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事の簡易化、設備全体の低コスト化および伝送ケーブルのメンテナンスの簡易化を行なうことができる無線方法および無線装置を提供することにある。
【０００９】
【課題を解決するための手段】
この発明の無線方法は、入力した信号を変調する現用変調部と該現用変調部の予備用である予備変調部とを有する変調部、入力した信号の周波数を搬送周波数帯へ変換する現用送信周波数変換部と該現用送信周波数変換部の予備用である予備送信周波数変換部とを有する送信周波数変換部、入力した信号を増幅する現用送信高周波部と該現用送信高周波部の予備用である予備送信高周波部を有する送信高周波部、入力した信号を増幅する現用受信高周波部と該現用受信高周波部の予備用である予備受信高周波部とを有する受信高周波部、入力した信号をＩＦ信号へ変換する現用受信周波数変換部と該現用受信周波数変換部の予備用である予備受信周波数変換部とを有する受信周波数変換部および入力した信号を復調する現用復調部と該現用復調部の予備用である予備復調部とを有する復調部を備えた無線装置における現用と予備用との間の無線方法であって、送信側は、入力したベースバンド信号を現用変調部または予備変調部へ分配するベースバンド信号分配ステップと、前記ベースバンド信号分配ステップで分配された信号を現用変調部で変調する現用変調ステップと、前記ベースバンド信号分配ステップで分配された信号を予備変調部で変調する予備変調ステップと、前記変調ステップと前記予備変調ステップとにおいて変調された信号の内いずれかの信号を選択する送信信号選択ステップと、前記送信信号選択ステップで選択された信号を送信ケーブルを介して送信変換部へ接続する第１接続ステップと、前記第１接続ステップで接続された信号を現用送信周波数変換部で変換する現用送信周波数変換ステップと、前記現用送信周波数変換ステップで変換された信号を現用送信高周波部で増幅する現用送信ＲＦステップと、前記第１接続ステップで接続された信号を予備送信周波数変換部で変換する予備送信周波数変換ステップと、前記予備送信変換ステップで変換された信号を予備送信高周波部で増幅する予備送信ＲＦステップと、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号に基づいて信号を出力する送信出力ステップとを備え、前記送信信号選択ステップは現用変調部が故障した場合、該現用変調部を予備変調部へ切替え、前記送信出力ステップは現用送信周波数変換部または現用送信高周波部が故障した場合、該現用送信周波数変換部および該現用送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替えるものであり、受信側は、受信したＲＦ信号を現用受信高周波部または予備受信高周波部へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を現用受信高周波部により増幅する現用受信ＲＦステップと、前記受信ＲＦステップで増幅された信号を現用受信周波数変換部でＩＦ信号へ変換する現用受信周波数変換ステップと、前記受信信号分配ステップで分配された信号を予備受信高周波部で増幅する予備受信ＲＦステップと、前記予備受信ＲＦステップで増幅された信号を予備受信周波数変換部でＩＦ信号へ変換する予備受信周波数変換ステップと、前記現用受信周波数変換ステップと予備受信周波数変換ステップとにおいて変換された信号の内いずれか１つの信号を選択する受信信号選択ステップと、前記受信信号選択ステップで選択された信号を受信ケーブルを介して復調部へ接続する第２接続ステップと、前記第２接続ステップで接続された信号を現用復調部で復調する現用復調ステップと、前記第２接続ステップで接続された信号を予備復調部で復調する予備復調ステップと、前記現用復調ステップと前記予備復調ステップとにおいて復調された信号の内いずれか１つの信号を選択して出力する受信出力選択ステップとを備え、前記受信信号選択ステップは現用受信高周波部または現用受信周波数変換部が故障した場合、該現用受信高周波部および該現用受信周波数変換部を予備受信高周波部および予備受信周波数変換部へ切替え、前記受信出力選択ステップは現用復調部が故障した場合、該現用復調部を予備復調部へ切替えるものである。
【００１０】
ここで、この発明の無線方法において、前記第１接続ステップは、前記送信信号選択ステップで選択された信号を現用送信周波数変換部および予備送信周波数変換部へ分配し、前記送信出力ステップは、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、前記第２接続ステップは、前記受信信号選択ステップで選択された信号を復調部および予備復調部へ分配することができるものである。
【００１１】
ここで、この発明の無線方法において、前記第１接続ステップは、前記送信信号選択ステップで選択された信号を現用送信周波数変換部または予備送信周波数変換部のいずれかへ切り替えて接続し、前記送信出力ステップは、前記送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、前記第２接続ステップは、前記受信信号選択ステップで選択された信号を現用復調部または予備復調部のいずれか１つへ切り替えて接続することができるものである。
【００１２】
ここで、この発明の無線方法において、前記第１接続ステップは、前記送信信号選択ステップで選択された信号を現用送信周波数変換部および予備送信周波数変換部へ分配し、前記送信出力ステップは、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号を合成して出力し、前記第２接続ステップは、前記受信信号選択ステップで選択された信号を復調部および予備復調部へ分配することができるものである。
【００１３】
この発明の無線方法は、入力した信号を変調する現用変調部と該現用変調部の予備用である予備変調部とを有する変調部、入力した信号の周波数を搬送周波数帯へ変換する現用送信周波数変換部と該現用送信周波数変換部の予備用である予備送信周波数変換部とを有する送信周波数変換部、入力した信号を増幅する現用送信高周波部と該現用送信高周波部の予備用である予備送信高周波部を有する送信高周波部、入力した信号を増幅する現用受信高周波部と該現用受信高周波部の予備用である予備受信高周波部とを有する受信高周波部、入力した信号をＩＦ信号へ変換する現用受信周波数変換部と該現用受信周波数変換部の予備用である予備受信周波数変換部とを有する受信周波数変換部および入力した信号を復調する現用復調部と該現用復調部の予備用である予備復調部とを有する復調部を備え、該変調部および該復調部を有する屋内装置と、該送信高周波部および該受信高周波部を有する屋外装置とを備えた無線装置における現用と予備用との間を切り替える無線方法であって、屋内装置側送信ステップは、入力したベースバンド信号を現用変調部および予備変調部へ分配するベースバンド信号分配ステップと、前記ベースバンド信号分配ステップで分配された信号を現用変調部で変調する現用変調ステップと、前記ベースバンド信号分配ステップで分配された信号を予備変調部で変調する予備変調ステップと、前記現用変調ステップと前記予備変調ステップとにおいて変調された信号の内いずれか１つの信号を選択し、現用変調部が故障した場合、該現用変調部を予備変調部へ切替える送信信号選択ステップと、前記送信信号選択ステップで選択された信号を伝送ケーブルを介して屋外装置側へ伝送する送信側伝送ステップとを備え、屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を現用送信周波数変換部および予備送信周波数変換部へ分配する送信側分波信号分配ステップと、前記送信側分波信号分配ステップで分配された信号を現用送信周波数変換部で変換する現用送信変換ステップと、前記現用送信変換ステップで変換された信号を現用送信高周波部で増幅する現用送信ＲＦステップと、前記分波信号分配ステップで分配された信号を予備送信周波数変換部で変換する予備送信変換ステップと、前記予備送信変換ステップで変換された信号を予備送信高周波部で増幅する予備送信ＲＦステップと、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、現用送信周波数変換部または現用送信高周波部が故障した場合、該現用送信周波数変換部および該現用送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替える送信出力ステップとを備え、屋外装置側受信ステップは、受信したＲＦ信号を現用受信高周波部および予備受信高周波部へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を現用受信高周波部により増幅する現用受信ＲＦステップと、前記受信信号分配ステップで分配された信号を予備受信高周波部で増幅する予備受信ＲＦステップと、前記現用受信周波数変換部と前記予備受信周波数変換部とにおいて増幅された信号の内いずれか１つの信号を選択し、現用受信高周波部が故障した場合、該現用受信高周波部を予備受信高周波部へ切替える受信信号選択ステップと、前記受信信号選択ステップで選択された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送ステップと、を備え、屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を現用受信周波数変換部および予備受信周波数変換部へ分配する受信側分波信号分配ステップと、前記受信側分波信号分配ステップで分配された信号を現用受信周波数変換部でＩＦ信号へ変換する現用受信周波数変換ステップと、前記現用受信周波数変換ステップで変換された信号を現用復調部で復調する現用復調ステップと、前記受信側分波信号分配ステップで分配された信号を予備受信周波数変換部でＩＦ信号へ変換する予備受信周波数変換ステップと、前記予備受信周波数変換ステップで変換された信号を予備用復調部で復調する予備復調ステップと、前記現用復調ステップと前記予備復調ステップとにおいて復調された信号の内いずれか１つの信号を選択して出力し、現用受信周波数変換部または現用復調部が故障した場合、該現用受信周波数変換部および該現用復調部を予備受信周波数変換部および予備復調部へ切替える受信出力選択ステップとを備えたものである。
【００１４】
ここで、この発明の無線方法において、前記屋外装置側受信ステップは、前記現用受信ＲＦステップの後に、前記現用受信ＲＦステップにより増幅された信号を現用受信周波数変換部でＩＦ信号へ変換する現用受信周波数変換ステップと、前記予備受信ＲＦステップの後に、前記予備受信ＲＦステップにより増幅された信号を予備受信周波数変換部でＩＦ信号へ変換する予備受信周波数変換ステップとをさらに備え、前記受信信号選択ステップは、前記現用受信周波数変換ステップと前記予備受信周波数変換ステップとにおいて変換された信号の内いずれか１つの信号を選択するものであり、前記屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を現用復調部および予備復調部へ分配する受信側分波信号分配ステップと、前記受信側分波信号分配ステップで分配された信号を現用復調部で復調する現用復調ステップと、前記受信側分波信号分配ステップで分配された信号を予備復調部で復調する予備復調ステップと、前記現用復調ステップと前記予備復調ステップとにおいて復調された信号の内いずれか１つの信号を選択して出力し、現用復調部が故障した場合、該現用復調部を予備復調部へ切替える受信出力選択ステップとを備えることができるものである。
【００１５】
ここで、この発明の無線方法において、前記屋内装置側送信ステップは、前記現用変調ステップの後に、前記現用変調ステップで変調された信号を変換する現用送信周波数変換ステップと、前記予備変調ステップの後に、前記予備変調ステップで変調された信号を変換する予備送信周波数変換ステップとをさらに備え、前記送信信号選択ステップは、前記現用送信周波数変換ステップと前記予備送信周波数変換ステップにおいて変換された信号の内いずれか１つの信号を選択して出力し、現用変調部または現用送信周波数変換部が故障した場合、該現用変調部および該現用送信周波数変換部をよび変調部および予備送信周波数変換部へ切替えるものであり、前記屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を現用送信高周波部および予備送信高周波部へ分配する送信側分波信号分配ステップと、前記送信側分波信号分配ステップで分配された信号を現用送信高周波部で増幅する現用送信ＲＦステップと、前記分波信号分配ステップで分配された信号を予備送信高周波部で増幅する予備送信ＲＦステップと、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、現用送信高周波部が故障した場合、該現用送信高周波部を予備送信高周波部へ切替える送信出力ステップとを備えることができるものである。
【００１６】
この発明の無線方法は、入力した信号を変調する現用変調部と該現用変調部の予備用である予備変調部とを有する変調部、入力した信号の周波数を搬送周波数帯へ変換する現用送信周波数変換部と該現用送信周波数変換部の予備用である予備送信周波数変換部とを有する送信周波数変換部、入力した信号を増幅する現用送信高周波部と該現用送信高周波部の予備用である予備送信高周波部を有する送信高周波部、入力した信号を増幅する現用受信高周波部と該現用受信高周波部の予備用である予備受信高周波部とを有する受信高周波部、入力した信号をＩＦ信号へ変換する現用受信周波数変換部と該現用受信周波数変換部の予備用である予備受信周波数変換部とを有する受信周波数変換部および入力した信号を復調する現用復調部と該現用復調部の予備用である予備復調部とを有する復調部を備え、該変調部および該復調部を有する屋内装置と、該送信高周波部および該受信高周波部を有する屋外装置とを備えた無線装置における現用と予備用との間を切り替える無線方法であって、屋内装置側送信ステップは、入力したベースバンド信号を現用変調部および予備変調部へ分配するベースバンド信号分配ステップと、前記ベースバンド信号分配ステップで分配された信号を現用変調部で変調する現用変調ステップと、前記ベースバンド信号分配ステップで分配された信号を予備変調部で変調する予備変調ステップと、前記現用変調ステップと前記予備変調ステップとにおいて変調された信号の内いずれか１つの信号を選択し、現用変調部が故障した場合、該現用変調部を予備変調部へ切替える送信信号選択ステップと、前記送信信号選択ステップで選択された信号を伝送ケーブルを介して屋外装置側へ伝送する送信側伝送ステップとを備え、屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を現用送信周波数変換部または予備送信周波数変換部のいずれかへ切り替える送信側分波信号切替ステップと、前記送信側分波信号切替ステップで切替えられた信号を現用送信周波数変換部で変換する現用送信変換ステップと、前記現用送信変換ステップで変換された信号を現用送信高周波部で増幅する現用送信ＲＦステップと、前記送信側分波信号切替ステップで切替えられた信号を予備送信周波数変換部で変換する予備送信変換ステップと、前記予備送信変換ステップで変換された信号を予備送信高周波部で増幅する予備送信ＲＦステップと、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、現用送信周波数変換部または現用送信高周波部が故障した場合、該現用送信周波数変換部および該現用送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替える送信出力ステップとを備え、屋外装置側受信ステップは、受信したＲＦ信号を現用受信高周波部および予備受信高周波部へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を現用受信高周波部により増幅する現用受信ＲＦステップと、前記受信信号分配ステップで分配された信号を予備受信高周波部で増幅する予備受信ＲＦステップと、前記現用受信周波数変換部と前記予備受信周波数変換部とにおいて増幅された信号の内いずれか１つの信号を選択し、現用受信高周波部が故障した場合、該現用受信高周波部を予備受信高周波部へ切替える受信信号選択ステップと、前記受信信号選択ステップで選択された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送ステップとを備え、屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を現用受信周波数変換部または予備受信周波数変換部のいずれかへ切替る受信側分波信号切替ステップと、前記受信側分波信号切替ステップで切り替えられた信号を現用受信周波数変換部でＩＦ信号へ変換する現用受信周波数変換ステップと、前記現用受信周波数変換ステップで変換された信号を現用復調部で復調する現用復調ステップと、前記受信側分波信号切替ステップで切替えられた信号を予備受信周波数変換部でＩＦ信号へ変換する予備受信周波数変換ステップと、前記予備受信周波数変換ステップで変換された信号を予備用復調部で復調する予備復調ステップと、前記現用復調ステップと前記予備復調ステップとにおいて復調された信号の内いずれか１つの信号を選択して出力し、現用受信周波数変換部または現用復調部が故障した場合、該現用受信周波数変換部および該現用復調部を予備受信周波数変換部および予備復調部へ切替える受信出力選択ステップとを備えたものである。
【００１７】
ここで、この発明の無線方法において、前記屋外装置側受信ステップは、前記現用受信ＲＦステップの後に、前記現用受信ＲＦステップにより増幅された信号を現用受信周波数変換部でＩＦ信号へ変換する現用受信周波数変換ステップと、前記予備受信ＲＦステップの後に、前記予備受信ＲＦステップにより増幅された信号を予備受信周波数変換部でＩＦ信号へ変換する予備受信周波数変換ステップとをさらに備え、前記受信信号選択ステップは、前記現用受信周波数変換ステップと前記予備受信周波数変換ステップとにおいて変換された信号の内いずれか１つの信号を選択するものであり、前記屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を現用復調部または予備復調部へ切り替える受信側分波信号切替ステップと、前記受信側分波信号切替ステップで切り替えられた信号を現用復調部で復調する現用復調ステップと、前記受信側分波信号切替ステップで切り替えられた信号を予備復調部で復調する予備復調ステップと、前記現用復調ステップと前記予備復調ステップとにおいて復調された信号の内いずれか１つの信号を選択して出力し、現用復調部が故障した場合、該現用復調部を予備復調部へ切替える受信出力選択ステップとを備えることができるものである。
【００１８】
ここで、この発明の無線方法において、前記屋内装置側送信ステップは、前記現用変調ステップの後に、前記現用変調ステップで変調された信号を変換する現用送信周波数変換ステップと、前記予備変調ステップの後に、前記予備変調ステップで変調された信号を変換する予備送信周波数変換ステップとをさらに備え、前記送信信号選択ステップは、前記現用送信周波数変換ステップと前記予備送信周波数変換ステップにおいて変換された信号の内いずれか１つの信号を選択して出力し、現用変調部または現用送信周波数変換部が故障した場合、該現用変調部および該現用送信周波数変換部をよび変調部および予備送信周波数変換部へ切替えるものであり、前記屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を現用送信高周波部または予備送信高周波部のいずれかへ切り替える送信側分波信号切替ステップと、前記送信側分波信号切替ステップで切替られた信号を現用送信高周波部で増幅する現用送信ＲＦステップと、前記送信側分波信号切替ステップで切替られた信号を予備送信高周波部で増幅する予備送信ＲＦステップと、前記現用送信ＲＦステップと前記予備送信ＲＦステップとにおいて増幅された信号の内いずれか１つの信号を選択して出力し、現用送信高周波部が故障した場合、該現用送信高周波部を予備送信高周波部へ切替える送信出力ステップとを備えることができるものである。
【００１９】
ここで、この発明の無線方法において、前記伝送ケーブルは光ファイバーケーブルであり、前記屋内装置側送信ステップにおいて、前記送信側伝送ステップは前記送信信号選択ステップで選択された電気信号を光信号へ変換し該光信号を該光ファイバーケーブルを介して屋外装置側へ伝送し、前記屋外装置側送信ステップにおいて、前記送信信号分配ステップは前記送信側伝送ステップで伝送された光信号を電気信号へ変換し送信側屋外装置側へ分配し、前記屋外装置側受信ステップにおいて、前記受信側伝送ステップは前記受信信号選択ステップで選択された電気信号を光信号へ変換し該光ファイバーケーブルを介して屋内装置へ伝送し、前記屋内装置側受信ステップにおいて、前記受信信号分配ステップは前記受信側伝送ステップで伝送された光信号を電気信号へ変換し受信側屋内装置側へ分配することができるものである。
【００２０】
この発明の無線装置は、送信側屋内装置、送信側屋外装置、該送信側屋内装置と該送信側屋外装置との間を接続する送信ケーブル、受信側屋外装置、受信側屋内装置および該受信側屋外装置と該受信側屋内装置との間を接続する受信ケーブルを有する無線装置であって、前記送信側屋内装置は、入力したベースバンド信号を分配するベースバンド信号分配部と、前記ベースバンド信号分配部で分配された信号を変調する変調部と、前記ベースバンド信号分配部で分配された信号を変調する予備変調部と、前記変調部と前記予備変調部とにおいて変調された信号の内いずれかの信号を選択し、変調部が故障した場合、該変調部を予備変調部へ切替える送信信号選択部とを備え、前記送信側屋外装置は、前記送信信号選択部で選択された信号を前記送信ケーブルを介して接続する第１接続部と、前記第１接続部で接続された信号の周波数を搬送周波数帯へ変換する送信周波数変換部と、前記送信周波数変換部で変換された信号を増幅する送信高周波部と、前記第１接続部で接続された信号の周波数を搬送周波数帯へを変換する予備送信変換部と、前記予備送信変換部で変換された信号を増幅する予備送信高周波部と、前記送信高周波部と前記予備送信高周波部とにおいて増幅された信号を出力し、送信周波数変換部または送信高周波部が故障した場合、該送信周波数変換部および該送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替える送信出力部とを備え、前記受信側屋外装置は、受信したＲＦ信号を分配する受信信号分配部と、前記受信信号分配部で分配された信号を増幅する受信高周波部と、前記受信高周波部で増幅された信号をＩＦ信号へ変換する受信周波数変換部と、前記受信信号分配部で分配された信号を増幅する予備受信高周波部と、前記予備受信高周波部で増幅された信号をＩＦ信号へ変換する予備受信周波数変換部と、前記受信周波数変換部と前記予備受信周波数変換部とにおいて変換された信号を選択し、受信高周波部または受信周波数変換部が故障した場合、該受信高周波部および該受信周波数変換部を予備受信高周波部および予備受信周波数変換部へ切替える受信信号選択部とを備え、前記受信側屋内装置は、前記受信信号選択部で選択された信号を接続する第２接続部と、前記第２接続部で接続された信号を復調する復調部と、前記第２接続部で接続された信号を復調する予備復調部と、前記復調部と前記予備復調部とにおいて復調された信号を選択して出力し、前記復調部が故障した場合、該復調部を前記予備復調部へ切替える受信出力選択部とを備えたものである。
【００２１】
この発明の無線装置は、送信側屋内装置、受信側屋内装置、該送信側屋内装置と該受信側屋内装置とを含む屋内装置、送信側屋外装置、受信側屋外装置、該送信側屋外装置と該受信側屋外装置とを含む屋外装置、該屋内装置と該屋外装置との間を接続する伝送ケーブルを有する無線装置であって、前記送信側屋内装置は、入力したベースバンド信号を分配するベースバンド信号分配部と、前記ベースバンド信号分配部で分配された信号を変調する変調部と、前記ベースバンド信号分配部で分配された信号を変調する予備変調部と、前記変調部と前記予備変調部とにおいて変調された信号の内いずれかの信号を選択し、変調部が故障した場合、該変調部を予備変調部へ切替える送信信号選択部と前記送信信号選択部で選択された信号を前記伝送ケーブルを介して前記屋外装置へ伝送する送信側伝送部とを備え、前記送信側屋外装置は、前記送信側伝送部から伝送された信号を送信側屋外装置側へ分配する送信信号分配部と、前記送信信号分配部で分配された信号を分波する送信側分波部と、前記送信側分波部で分波された信号を分配する送信側分波信号分配部と、前記送信側分波信号分配部で分配された信号の周波数を搬送波周波数帯へ変換する現用送信周波数変換部と、前記現用送信周波数変換部で変換された信号を増幅する現用送信高周波部と、
前記送信側分波信号分配部で分配された信号の周波数を搬送波周波数帯へ変換する予備送信周波数変換部と、前記予備送信周波数変換部で変換された信号を増幅する予備送信高周波部と、前記現用送信高周波部と前記予備送信高周波部とにおいて増幅された信号の内いずれかの信号を選択して出力し、現用送信周波数変換部または現用送信高周波部が故障した場合、該現用送信周波数変換部および該現用送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替えるする送信出力部とを備え、前記受信側屋外装置は、受信したＲＦ信号を分配する受信信号分配部と、前記受信信号分配部で分配された信号を増幅する現用受信高周波部と、前記受信信号分配部で分配された信号を増幅する予備受信高周波部と、前記現用受信高周波部と前記予備受信ＲＦとにおいて増幅された信号の内いずれかの信号を選択し、現用受信高周波部が故障した場合、該現用受信高周波部を予備受信高周波部へ切替えする受信信号選択部と、前記受信信号選択部で選択された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送部とを備え、前記受信側屋内装置は、前記受信側伝送部から伝送された信号を受信側屋内装置側へ分配する受信信号分配部と、前記受信信号分配部で分配された信号を分波する受信側分波部と、前記受信側分波部で分波された信号を分配する受信側分波信号分配部と、前記受信側分波信号分配部で分配された信号をＩＦ信号へ変換する現用受信周波数変換部と、前記現用受信周波数変換部で変換された信号を復調する現用復調部と、前記受信側分波信号分配部で分配された信号をＩＦ信号へ変換する予備受信周波数変換部と、前記予備受信周波数変換部で変換された信号を復調する予備復調部と、前記復調部と前記予備復調部とにおいて復調された信号の内いずれか１つの信号を選択して出力し、前記現用受信周波数変換部または現用復調部が故障した場合、該現用受信周波数変換部および該現用復調部を予備受信周波数変換部および予備復調部へ切替える受信出力選択部とを備えたものである。
【００２２】
この発明の無線装置は、送信側屋内装置、受信側屋内装置、該送信側屋内装置と該受信側屋内装置とを含む屋内装置、送信側屋外装置、受信側屋外装置、該送信側屋外装置と該受信側屋外装置とを含む屋外装置、該屋内装置と該屋外装置との間を接続する伝送ケーブルを有する無線装置であって、前記送信側屋内装置は、入力したベースバンド信号を分配するベースバンド信号分配部と、前記ベースバンド信号分配部で分配された信号を変調する変調部と、前記ベースバンド信号分配部で分配された信号を変調する予備変調部と、前記変調部と前記予備変調部とにおいて変調された信号の内いずれかの信号を選択し、変調部が故障した場合、該変調部を予備変調部へ切替える送信信号選択部と前記送信信号選択部で選択された信号を前記伝送ケーブルを介して前記屋外装置へ伝送する送信側伝送部とを備え、前記送信側屋外装置は、前記送信側伝送部から伝送された信号を送信側屋外装置側へ分配する送信信号分配部と、前記送信信号分配部で分配された信号を分波する送信側分波部と、前記送信側分波部で分波された信号を切り替える送信側分波信号切替部と、前記送信側分波信号切替部で切り替えられた信号の周波数を搬送波周波数帯へ変換する現用送信周波数変換部と、前記現用送信周波数変換部で変換された信号を増幅する現用送信高周波部と、前記送信側分波信号切替部で切り替えられた信号の周波数を搬送波周波数帯へ変換する予備送信周波数変換部と、前記予備送信周波数変換部で変換された信号を増幅する予備送信高周波部と、前記現用送信高周波部と前記予備送信高周波部とにおいて増幅された信号の内いずれかの信号を選択して出力し、現用送信周波数変換部または現用送信高周波部が故障した場合、該現用送信周波数変換部および該現用送信高周波部を予備送信周波数変換部および予備送信高周波部へ切替えるする送信出力部とを備え、前記受信側屋外装置は、受信したＲＦ信号を分配する受信信号分配部と、前記受信信号分配部で分配された信号を増幅する現用受信高周波部と、前記受信信号分配部で分配された信号を増幅する予備受信高周波部と、前記現用受信高周波部と前記予備受信ＲＦとにおいて増幅された信号の内いずれかの信号を選択し、現用受信高周波部が故障した場合、該現用受信高周波部を予備受信高周波部へ切替えする受信信号選択部と、前記受信信号選択部で選択された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送部とを備え、前記受信側屋内装置は、前記受信側伝送部から伝送された信号を受信側屋内装置側へ分配する受信信号分配部と、前記受信信号分配部で分配された信号を分波する受信側分波部と、前記受信側分波部で分波された信号を切り替える受信側分波信号切替部と、前記受信側分波信号切替部で切り替えられた信号をＩＦ信号へ変換する現用受信周波数変換部と、前記現用受信周波数変換部で変換された信号を復調する現用復調部と、前記受信側分波信号切替部で切り替えられた信号をＩＦ信号へ変換する予備受信周波数変換部と、前記予備受信周波数変換部で変換された信号を復調する予備復調部と、前記復調部と前記予備復調部とにおいて復調された信号の内いずれか１つの信号を選択して出力し、前記現用受信周波数変換部または現用復調部が故障した場合、該現用受信周波数変換部および該現用復調部を予備受信周波数変換部および予備復調部へ切替える受信出力選択部とを備えたものである。
【００２３】
ここで、この発明の無線装置において、前記伝送ケーブルは光ファイバーケーブルであり、前記送信側屋内装置において、前記送信側伝送部は前記送信信号選択部で選択された電気信号を光信号へ変換し該光信号を該光ファイバーケーブルを介して屋外装置側へ伝送し、前記送信側屋外装置において、前記送信信号分配部は前記送信側伝送部から伝送された光信号を電気信号へ変換し送信側屋外装置側へ分配し、前記受信側屋外装置において、前記受信側伝送部は前記受信信号選択部で選択された電気信号を光信号へ変換し該光ファイバーケーブルを介して屋内装置へ伝送し、前記受信側屋内装置において、前記受信信号分配部は前記受信側伝送部から伝送された光信号を電気信号へ変換し受信側屋内装置側へ分配することができるものである。
【００２４】
この発明の無線方法は、入力した信号を変調する変調部、入力した信号の周波数を搬送周波数帯へ変換する送信周波数変換部、入力した信号を増幅する送信高周波部、入力した信号を増幅する受信高周波部、入力した信号をＩＦ信号へ変換する受信周波数変換部および入力した信号を復調する復調部を備え、該変調部および該復調部を有する屋内装置と、該送信高周波部および該受信高周波部を有する屋外装置とを備えた無線装置における無線方法であって、屋内装置側送信ステップは、入力したベースバンド信号を変調部で変調する変調ステップと、前記変調ステップで変調された信号を伝送ケーブルを介して屋外装置側へ伝送する送信側伝送ステップとを備え、屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を送信周波数変換部で変換する送信変換ステップと、前記送信変換ステップで変換された信号を送信高周波部で増幅する送信ＲＦステップと、前記送信ＲＦステップにおいて増幅された信号を出力する送信出力ステップとを備え、屋外装置側受信ステップは、受信したＲＦ信号を受信高周波部により増幅する受信ＲＦステップと、前記受信ＲＦステップで増幅された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送ステップと、を備え、屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を受信周波数変換部でＩＦ信号へ変換する受信周波数変換ステップと、
前記受信周波数変換ステップで変換された信号を復調部で復調する復調ステップと、前記復調ステップにおいて復調された信号を出力する受信出力ステップとを備えたものである。
【００２５】
ここで、この発明の無線方法において、前記屋外装置側受信ステップは、前記受信ＲＦステップの後に、前記受信ＲＦステップにより増幅された信号を受信周波数変換部でＩＦ信号へ変換する受信周波数変換ステップをさらに備え、前記屋内装置側受信ステップは、前記受信側伝送ステップで伝送された信号を復調部側へ分配する受信信号分配ステップと、前記受信信号分配ステップで分配された信号を分波する受信側分波ステップと、前記受信側分波ステップで分波された信号を復調部で復調する復調ステップと、前記復調ステップにおいて復調された信号を出力する受信出力ステップとを備えることができるものである。
【００２６】
ここで、この発明の無線方法において、前記屋内装置側送信ステップは、前記変調ステップの後に、前記変調ステップで変調された信号を変換する送信周波数変換ステップをさらに備え、記屋外装置側送信ステップは、前記送信側伝送ステップで伝送された信号を送信高周波部側へ分配する送信信号分配ステップと、前記送信信号分配ステップで分配された信号を分波する送信側分波ステップと、前記送信側分波ステップで分波された信号を送信高周波部で増幅する送信ＲＦステップと、前記送信ＲＦステップにおいて増幅された信号を出力する送信出力ステップとを備えることができるものである。
【００２７】
ここで、この発明の無線方法において、前記伝送ケーブルは光ファイバーケーブルであり、前記屋内装置側送信ステップにおいて、前記送信側伝送ステップは前記送信信号選択ステップで選択された電気信号を光信号へ変換し該光信号を該光ファイバーケーブルを介して屋外装置側へ伝送し、前記屋外装置側送信ステップにおいて、前記送信信号分配ステップは前記送信側伝送ステップで伝送された光信号を電気信号へ変換し送信側屋外装置側へ分配し、前記屋外装置側受信ステップにおいて、前記受信側伝送ステップは前記受信信号選択ステップで選択された電気信号を光信号へ変換し該光ファイバーケーブルを介して屋内装置へ伝送し、前記屋内装置側受信ステップにおいて、前記受信信号分配ステップは前記受信側伝送ステップで伝送された光信号を電気信号へ変換し受信側屋内装置側へ分配することができるものである。
【００２８】
この発明の無線装置は、送信側屋内装置、受信側屋内装置、該送信側屋内装置と該受信側屋内装置とを含む屋内装置、送信側屋外装置、受信側屋外装置、該送信側屋外装置と該受信側屋外装置とを含む屋外装置、該屋内装置と該屋外装置との間を接続する伝送ケーブルを有する無線装置であって、前記送信側屋内装置は、入力したベースバンド信号を変調する変調部と、前記変調部で変調された信号を前記伝送ケーブルを介して前記屋外装置へ伝送する送信側伝送部とを備え、前記送信側屋外装置は、前記送信側伝送部から伝送された信号を送信側屋外装置側へ分配する送信信号分配部と、前記送信信号分配部で分配された信号を分波する送信側分波部と、前記送信側分波部で分波された信号の周波数を搬送波周波数帯へ変換する送信周波数変換部と、前記送信周波数変換部で変換された信号を増幅する送信高周波部と、前記送信高周波部において増幅された信号を出力する送信出力部とを備え、前記受信側屋外装置は、受信したＲＦ信号を増幅する受信高周波部と、前記受信高周波部において増幅された信号を前記伝送ケーブルを介して屋内装置側へ伝送する受信側伝送部とを備え、前記受信側屋内装置は、前記受信側伝送部から伝送された信号を受信側屋内装置側へ分配する受信信号分配部と、前記受信信号分配部で分配された信号を分波する受信側分波部と、前記受信側分波部で分波された信号をＩＦ信号へ変換する受信周波数変換部と、前記受信周波数変換部で変換された信号を復調する復調部と、前記復調部において復調された信号を出力する受信出力部とを備えたものである。
【００２９】
ここで、この発明の無線装置において、前記伝送ケーブルは光ファイバーケーブルであり、前記送信側屋内装置において、前記送信側伝送部は前記送信信号選択部で選択された電気信号を光信号へ変換し該光信号を該光ファイバーケーブルを介して屋外装置側へ伝送し、前記送信側屋外装置において、前記送信信号分配部は前記送信側伝送部から伝送された光信号を電気信号へ変換し送信側屋外装置側へ分配し、前記受信側屋外装置において、前記受信側伝送部は前記受信信号選択部で選択された電気信号を光信号へ変換し該光ファイバーケーブルを介して屋内装置へ伝送し、前記受信側屋内装置において、前記受信信号分配部は前記受信側伝送部から伝送された光信号を電気信号へ変換し受信側屋内装置側へ分配することができるものである。
【００３０】
【発明の実施の形態】
以下、図面を参照して、本発明の実施の形態を詳細に説明する。
【００３１】
実施の形態１.
図１は、本発明の実施の形態１における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図１に示される無線装置は、変調部、復調部、送信周波数変換部、受信周波数変換部、送信高周波部および受信高周波部により構成されており、場所の異なる屋内と屋外との２地点に分離されたＩＤＵとＯＤＵとを設置し、ＩＤＵとＯＤＵとの間を伝送ケーブルで結ぶものである。図１において、符号１はＢＢ信号を入力するＢＢ信号入力端子、２は入力した信号を分配する信号分配器ＨＹＢ、３ａは入力した信号を変調する現用の変調部１、３ｂは現用の変調部１（３ａ）が故障等した場合に切り替えて用いられる予備用の予備変調部、４は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、６は入力した信号を分配する信号分配器ＨＹＢ、５は切替スイッチＳＷ４と信号分配器ＨＹＢ６との間を接続する伝送ケーブル、７ａは入力した信号の周波数を搬送周波数帯へ変換する現用の送信周波数変換部１、７ｂは現用の送信周波数変換部１（７ａ）が故障等した場合に切り替えて用いられる予備用の予備送信周波数変換部、８ａは入力した信号を増幅する現用の送信高周波部１、８ｂは現用の送信高周波部１（８ａ）が故障等した場合に切り替えて用いられる予備用の予備送信高周波部、９は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、１０はＲＦ信号を出力するＲＦ出力端子、１１はＲＦ信号を入力するＲＦ入力端子、１２は入力した信号を分配する信号分配器ＨＹＢ、１３ａは入力した信号を増幅する現用の受信高周波部１、１３ｂは現用の受信高周波部１（１３ａ）が故障等した場合に切り替えて用いられる予備用の予備受信高周波部、１４ａは入力した信号をＩＦ信号へ変換する現用の受信周波数変換部１、１４ｂは現用の受信周波数変換部１（１４ａ）が故障等した場合に切り替えて用いられる予備用の予備受信周波数変換部、１５は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、１７は入力した信号を分配する信号分配器ＨＹＢ、１６は切替スイッチＳＷ１５と信号分配器ＨＹＢ１７との間を接続する伝送ケーブル、１８ａは入力した信号を復調する現用の復調部１、１８ｂは現用の復調部１（１８ａ）が故障等した場合に切り替えて用いられる予備用の予備復調部、１９は入力した信号のうちいずれかを切り替えて出力する切替スイッチＳＷ、２０はＢＢ信号を出力するＢＢ出力端子である。
【００３２】
次に送信側のＩＤＵとＯＤＵとの動作について説明する。図１に示されるように、ＢＢ入力端子１より入力したＢＢ信号は、信号分配器ＨＹＢ２により２つに分配されて現用変調部１（３ａ）で変調される。信号分配器ＨＹＢ２により分配された他方の信号は予備変調部２（３ｂ）で変調される。切替スイッチＳＷ４により現用変調部１（３ａ）または予備変調部２（３ｂ）のうち何れかの信号がＩＤＵ出力信号として選択される。選択されたＩＤＵ出力信号は、伝送ケーブル５に接続されたＯＤＵ側の信号分配器６で２つに分配されて現用送信周波数変換部１（７ａ）および予備送信周波数変換部２（７ｂ）で搬送周波数帯に変換され、各々現用送信高周波部１（８ａ）および予備送信高周波部２（８ｂ）で増幅される。切替スイッチＳＷ９により現用送信高周波部１（８ａ）または予備送信高周波部２（８ｂ）のうち何れかの信号が選択されて、ＲＦ出力端子１０へ出力される。切替スイッチＳＷ４は、変調部１（３ａ）が故障の場合に瞬間的に自動切替して、予備変調部２（３ｂ）の選択を行う。切替スイッチＳＷ９は、送信周波数変換部１（７ａ）または送信高周波部１（８ａ）が故障の場合に瞬間的に自動切替して、予備送信周波数変換部２（７ｂ）または予備送信高周波部２（８ｂ）の選択を行う。
【００３３】
上述の送信側の自動切替の手順について詳細に説明する。変調部１（３ａ）または予備変調部２（３ｂ）から出力される故障検出信号は、ＩＤＵ側の警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ４へ伝送され切替制御が行われる。同様にして、送信周波数変換部１（７ａ）または予備送信周波数変換部２（７ｂ）から出力される故障検出信号と、送信高周波部１（８ａ）または予備送信高周波部２（８ｂ）から出力される故障検出信号とは、ＯＤＵ側の警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ９へ伝送され切替制御が行われる。このため、従来の技術で述べられたようにＩＤＵとＯＤＵとの間で警報信号および切替制御信号をやり取りする必要性が無くなり、ＩＤＵ内での独立した警報の発生および切替の制御、ＯＤＵ内での独立した警報の発生および切替の制御ができるようになる。
【００３４】
次に受信側のＩＤＵとＯＤＵとの動作について説明する。ＲＦ入力端子１１より入力したＲＦ信号は、信号分配器ＨＹＢ１２により２つに分配されて現用の受信高周波部１（１３ａ）で増幅された後、現用の受信周波数変換部１（１４ａ）でＩＦ帯信号へ変換される。信号分配器ＨＹＢ１２により分配された他方の信号は予備受信高周波部２（１３ｂ）で増幅された後、予備受信周波数変換部２（１４ｂ）でＩＦ帯信号へ変換される。切替スイッチＳＷ１５により受信周波数変換部１（１４ａ）または備受信周波数変換部２（１４ｂ）のうち何れかの信号がＯＤＵ出力信号として選択される。選択されたＯＤＵ出力信号は、伝送ケーブル１６に接続されたＩＤＵ側の信号分配器ＨＹＢ１７で２つに分配されて復調部１（１８ａ）および予備復調部２（１８ｂ）に伝送されてＢＢ信号へ復調される。切替スイッチ１９は、復調部１（１８ａ）または予備復調部２（１８ｂ）のうちのいずれかのＢＢ信号を選択し、選択されたＢＢ信号がＢＢ出力端子２０に出力される。切替スイッチＳＷ１５は、受信高周波部１（１３ａ）または受信周波数変換部１（１４ａ）が故障の場合に瞬間的に自動切替して、予備受信高周波部２（１３ａ）または予備受信周波数変換部２（１４ａ）の選択を行う。切替スイッチＳＷ１９は、復調部１（１８ａ）が故障の場合に瞬間的に自動切替して、予備復調部２（１８ｂ）の選択を行う。
【００３５】
上述の送信側の自動切替の手順について詳細に説明する。受信高周波部１（１３ａ）または予備受信高周波部２（１３ｂ）から出力される故障検出信号と、受信周波数変換部１（１４ａ）または予備受信周波数変換部２（１４ｂ）から出力される故障検出信号とは、ＯＤＵ側の警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ１５へ伝送され切替制御が行われる。同様にして、復調部１（１８ａ）または予備復調部２（１８ｂ）から出力される故障検出信号は、ＩＤＵ側の警報制御処理部（不図示）に集められて警報信号を送出させるとともに、切替制御信号を生成させて切替スイッチＳＷ１９へ伝送され切替制御が行われる。このため、従来の技術で述べられたようにＯＤＵとＩＤＵとの間で警報信号および切替制御信号をやり取りする必要性が無くなり、ＯＤＵ内での独立した警報の発生および切替の制御、ＩＤＵ内での独立した警報の発生および切替の制御ができるようになる。
【００３６】
以上より、実施の形態１によれば、ＩＤＵとＯＤＵとの間で警報信号および切替制御信号をやり取りする必要性を無くし、ＩＤＵおよびＯＤＵ各々での独立した警報の発生および切替の制御ができるようにし、ＩＤＵとＯＤＵとの間の伝送ケーブルを２本とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事の簡易化、設備全体の低コスト化および伝送ケーブルのメンテナンスの簡易化を行なうことができる。
【００３７】
実施の形態２.
図２は、本発明の実施の形態２における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図２で図１と同じ符号を付したものは同じ機能を有するため説明は省略する。図２において、符号６０は伝送ケーブル５により伝送されたＩＤＵ出力信号を、送信周波数変換部１（７ａ）または予備送信周波数変換部２（７ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷ、１７０は伝送ケーブル５により伝送されたＯＤＵ出力信号を、復調部１（１８ａ）または予備復調部２（１８ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷである。
【００３８】
上述の実施の形態１では、送信側のＯＤＵ入力部で信号分配器６を用いたが、信号分配器６の代わりに切替スイッチＳＷ６０を用いてもよい。この結果、送信周波数変換部１（７ａ）等の現用送信ルートに故障が発生した場合、送信側のＯＤＵ入力部で予備送信周波数変換部２（７ｂ）等の予備送信ルートへ切り替えることもできる。さらに受信側のＩＤＵ入力部で信号分配器１７を用いたが、信号分配器１７の代わりに切替スイッチＳＷ１７０を用いてもよい。この結果、復調部１（１８ａ）に故障が発生した場合、受信側のＩＤＵ入力部で予備復調部２（１８ｂ）へ切り替えることもできる。
【００３９】
以上より、実施の形態２によれば、送信側のＯＤＵ入力部で切替スイッチＳＷ６０を用いることにより、送信側のＯＤＵ入力部で故障に対処することができ、受信側のＩＤＵ入力部で切替スイッチＳＷ１７０を用いることにより、受信側のＩＤＵ入力部で故障に対処することができる。
【００４０】
実施の形態３.
図３は、本発明の実施の形態３における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図３で図１と同じ符号を付したものは同じ機能を有するため説明は省略する。図３において、符号９０は送信高周波部１（８ａ）および予備送信高周波部２（８ｂ）の信号を合成する信号合成部である。
【００４１】
上述の実施の形態１では、送信側のＯＤＵ出力部で切替スイッチＳＷ９を用いたが、送信周波数変換部１（７ａ）と予備送信周波数変換部２（７ｂ）で局発同期を行うと共に、切替スイッチＳＷ９の代わりに信号合成器９０を用いることができる。送信周波数変換部１（７ａ）と送信周波数変換部２（７ｂ）とで周波数の同期がとれた局発信号を使用することにより、各送信周波数変換部の出力信号の同期をとることができる。したがって各送信高周波部で増幅された後でも単一波として信号の合成を行なうことができる。
【００４２】
以上より、実施の形態３によれば、送信周波数変換部１（７ａ）と予備送信周波数変換部２（７ｂ）で局発同期を行うと共に、合成部９０により単一波として合成された信号を得ることができる。
【００４３】
実施の形態４.
図４は、本発明の実施の形態４における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図４で図１と同じ符号を付したものは同じ機能を有するため説明は省略する。図４において、符号２１は切替スイッチＳＷ４で選択された送信信号を後述のインタフェース部ＩＮＴ２２へ伝送し、インタフェース部ＩＮＴ２２から伝送された受信信号を受信側ＩＤＵ入力部へ伝送するインタフェース部、２２は切替スイッチＳＷ１５で選択された受信信号をインタフェース部ＩＮＴ２１へ伝送し、インタフェース部ＩＮＴ２１から伝送された送信信号を送信側ＯＤＵ入力部へ伝送するインタフェース部、２３は入力した信号を分波するＯＤＵ側の分波部、２４は入力した信号を分波するＩＤＵ側の分波部である。信号分配器Ｈ１７は信号分配器ＨＹＢ１７と同じ機能を有する。
【００４４】
上述の実施の形態１では、送信側ＩＤＵ出力部で変調部１（３ａ）または予備変調部２（３ｂ）の出力信号を切替スイッチＳＷ４により選択し、この後伝送ケーブル５を介して送信側ＯＤＵ入力部で信号分配器ＨＹＢ６へ接続していた。本実施の形態４では、インタフェース部ＩＮＴ２１で送信側ＩＤＵからの送信信号と受信側ＯＤＵ出力部からの受信信号とを共に合成し、送信信号を１本の伝送ケーブル５によりインタフェース部ＩＮＴ２１からインタフェース部ＩＮＴ２２へ伝送する。送信側ＯＤＵでは、インタフェース部ＩＮＴ２２により伝送された送信信号を分配し、この分配された送信信号を分波部２３で分波後に、信号分配器ＨＹＢ６により送信周波数変換部１（７ａ）および予備送信周波数変換部２（７ｂ）へ分配する。
【００４５】
一方、受信側ＯＤＵでは、切替スイッチＳＷ１５が受信高周波部１（１３ａ）または受信高周波部２（１３ｂ）の出力を切替選択し、インタフェース部ＩＮＴ２２で受信側ＯＤＵからの受信信号と送信側ＩＤＵ出力部からの送信信号とを共に合成し、受信信号を１本の伝送ケーブル５によりインタフェース部ＩＮＴ２２からインタフェース部ＩＮＴ２１へ伝送する。受信側ＩＤＵでは、インタフェース部ＩＮＴ２１により伝送された受信信号を分配し、この分配された受信信号を分波部２４で分波後に、信号分配器Ｈ１７で分配し、受信周波数変換部１（１４ａ）および予備受信周波数変換部２（１４ｂ）へ分配することができる。
【００４６】
以上より、実施の形態４によれば、ＩＤＵ側とＯＤＵ側との各々に送信信号と受信信号とを合成するインタフェース部を設けることにより、ＩＤＵとＯＤＵとの間の伝送ケーブルを１本とすることができ、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化および伝送ケーブルのメンテナンスの簡易化を行なうことができる。
【００４７】
実施の形態５.
図５は、本発明の実施の形態５における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図５で図４と同じ符号を付したものは同じ機能を有するため説明は省略する。上述の実施の形態４では、受信側ＩＤＵにおいて、分波部２４で分波された信号を信号分配器Ｈ１７で受信周波数変換部１（１４ａ）および予備受信周波数変換部２（１４ｂ）へ分配していたが、本実施の形態５では、受信周波数変換部１（１４ａ）および予備受信周波数変換部２（１４ｂ）を受信側ＩＤＵから受信側ＯＤＵへ移すことができる。したがって、受信高周波部１（１３ａ）の出力を受信周波数変換部１（１４ａ）で変換し、予備受信高周波部２（１３ｂ）の出力を予備受信周波数変換部２（１４ｂ）で変換して、切替スイッチＳＷ１５により、いずれかの受信周波数変換部の出力を選択することができる。
【００４８】
以上より、実施の形態５によれば、受信周波数変換部１（１４ａ）および予備受信周波数変換部２（１４ｂ）を受信側ＩＤＵから受信側ＯＤＵへ移すことにより、受信側ＯＤＵで受信信号の周波数変換を行なうことができる。
【００４９】
実施の形態６.
図６は、本発明の実施の形態６における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図６で図４と同じ符号を付したものは同じ機能を有するため説明は省略する。上述の実施の形態４では、送信側ＯＤＵにおいて、送信信号を信号分配器ＨＹＢ６により送信周波数変換部１（７ａ）および予備送信周波数変換部２（７ｂ）へ分配していたが、本実施の形態６では、送信周波数変換部１（７ａ）および予備送信周波数変換部２（７ｂ）を送信側ＯＤＵから送信側ＩＤＵへ移すことができる。したがって、変調部１（３ａ）の出力を送信周波数変換部１（７ａ）で変換し、予備変調部２（３ｂ）の出力を予備送信周波数変換部２（７ｂ）で変換して、切替スイッチＳＷ４により、いずれかの送信周波数変換部の出力を選択することができる。
【００５０】
以上より、実施の形態６によれば、送信周波数変換部１（７ａ）および予備送信周波数変換部２（７ｂ）を送信側ＯＤＵから送信側ＩＤＵへ移すことにより、送信側ＩＤＵで送信信号の周波数変換を行なうことができる。
【００５１】
実施の形態７.
図７は、本発明の実施の形態７における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図７で図４と同じ符号を付したものは同じ機能を有するため説明は省略する。図７において、符号６０は分波部２３により分波された送信信号を、送信周波数変換部１（７ａ）または予備送信周波数変換部２（７ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷ、１７０は分波部２４により分波された受信信号を、受信周波数変換部１（１４ａ）または予備受信周波数変換部２（１４ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷである。
【００５２】
上述の実施の形態４では、送信側のＯＤＵ入力部で信号分配器ＨＹＢ６を用いたが、信号分配器ＨＹＢ６の代わりに切替スイッチＳＷ６０を用いてもよい。この結果、送信周波数変換部１（７ａ）等の現用送信ルートに故障が発生した場合、送信側のＯＤＵ入力部で予備送信周波数変換部２（７ｂ）等の予備送信ルートへ切り替えることもできる。さらに受信側のＩＤＵ入力部で信号分配器Ｈ１７を用いたが、信号分配器Ｈ１７の代わりに切替スイッチＳＷ１７０を用いてもよい。この結果、復調部１（１８ａ）等の現用受信ルートに故障が発生した場合、受信側のＩＤＵ入力部で予備復調部２（１８ｂ）等の予備受信ルートへ切り替えることもできる。
【００５３】
以上より、実施の形態７によれば、送信側のＯＤＵ入力部で切替スイッチＳＷ６０を用いることにより、送信側のＯＤＵ入力部で故障に対処することができ、受信側のＩＤＵ入力部で切替スイッチＳＷ１７０を用いることにより、受信側のＩＤＵ入力部で故障に対処することができる。
【００５４】
実施の形態８.
図８は、本発明の実施の形態８における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図８で図５と同じ符号を付したものは同じ機能を有するため説明は省略する。図８において、符号６０は分波部２３により分波された送信信号を、送信周波数変換部１（７ａ）または予備送信周波数変換部２（７ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷ、１７０は分波部２４により分波された受信信号を、受信周波数変換部１（１４ａ）または予備受信周波数変換部２（１４ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷである。
【００５５】
上述の実施の形態５では、送信側のＯＤＵ入力部で信号分配器ＨＹＢ６を用いたが、信号分配器ＨＹＢ６の代わりに切替スイッチＳＷ６０を用いてもよい。この結果、送信周波数変換部１（７ａ）等の現用送信ルートに故障が発生した場合、送信側のＯＤＵ入力部で予備送信周波数変換部２（７ｂ）等の予備送信ルートへ切り替えることもできる。さらに受信側のＩＤＵ入力部で信号分配器Ｈ１７を用いたが、信号分配器Ｈ１７の代わりに切替スイッチＳＷ１７０を用いてもよい。この結果、復調部１（１８ａ）等の現用受信ルートに故障が発生した場合、受信側のＩＤＵ入力部で予備復調部２（１８ｂ）等の予備受信ルートへ切り替えることもできる。
【００５６】
以上より、実施の形態８によれば、送信側のＯＤＵ入力部で切替スイッチＳＷ６０を用いることにより、送信側のＯＤＵ入力部で故障に対処することができ、受信側のＩＤＵ入力部で切替スイッチＳＷ１７０を用いることにより、受信側のＩＤＵ入力部で故障に対処することができる。
【００５７】
実施の形態９.
図９は、本発明の実施の形態９における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図９で図６と同じ符号を付したものは同じ機能を有するため説明は省略する。図９において、符号６０は分波部２３により分波された送信信号を、送信高周波部１（８ａ）または予備送信高周波部２（８ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷ、１７０は分波部２４により分波された受信信号を、受信周波数変換部１（１４ａ）または予備受信周波数変換部２（１４ｂ）のうちいずれかへ信号を伝送する切替スイッチＳＷである。
【００５８】
上述の実施の形態６では、送信側のＯＤＵ入力部で信号分配器ＨＹＢ６を用いたが、信号分配器ＨＹＢ６の代わりに切替スイッチＳＷ６０を用いてもよい。この結果、送信高周波部１（８ａ）に故障が発生した場合、送信側のＯＤＵ入力部で予備高周波部２（８ｂ）へ切り替えることもできる。さらに受信側のＩＤＵ入力部で信号分配器Ｈ１７を用いたが、信号分配器Ｈ１７の代わりに切替スイッチＳＷ１７０を用いてもよい。この結果、復調部１（１８ａ）等の現用受信ルートに故障が発生した場合、受信側のＩＤＵ入力部で予備復調部２（１８ｂ）等の予備受信ルートへ切り替えることもできる。
【００５９】
以上より、実施の形態９によれば、送信側のＯＤＵ入力部で切替スイッチＳＷ６０を用いることにより、送信側のＯＤＵ入力部で故障に対処することができ、受信側のＩＤＵ入力部で切替スイッチＳＷ１７０を用いることにより、受信側のＩＤＵ入力部で故障に対処することができる。
【００６０】
実施の形態１０.
図１０は、本発明の実施の形態１０における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図１０で図４と同じ符号を付したものは同じ機能を有するため説明は省略する。図１０において、符号５０は光信号を伝送する光ファイバケーブルである。
【００６１】
上述の実施の形態４では、伝送ケーブル５を用いてＩＤＵ側とＯＤＵ側との間で電気信号を伝送していたが、本実施の形態１０では、伝送ケーブル５の代わりに、光信号を伝送する光ファイバケーブルを用いることができる。送信する場合は、インタフェース部ＩＮＴ２１でＩＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＯＤＵ側のインタフェース部ＩＮＴ２２へ伝送する。インタフェース部ＩＮＴ２２ではＩＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。同様にして、受信する場合は、インタフェース部ＩＮＴ２２でＯＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＩＤＵ側のインタフェース部ＩＮＴ２１へ伝送する。インタフェース部ＩＮＴ２１ではＯＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。
【００６２】
以上より、実施の形態１０によれば、電気信号を伝送する伝送ケーブルの代わりに光信号を伝送する光ファイバケーブルを用いることができるため、ケーブルの敷設工事を容易化し、ケーブルのメンテナンスを容易化することができる。
【００６３】
実施の形態１１.
図１１は、本発明の実施の形態１１における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図１１で図５と同じ符号を付したものは同じ機能を有するため説明は省略する。図１１において、符号５０は光信号を伝送する光ファイバケーブルである。
【００６４】
上述の実施の形態５では、伝送ケーブル５を用いてＩＤＵ側とＯＤＵ側との間で電気信号を伝送していたが、本実施の形態１１では、伝送ケーブル５の代わりに、光信号を伝送する光ファイバケーブルを用いることができる。送信する場合は、インタフェース部ＩＮＴ２１でＩＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＯＤＵ側のインタフェース部ＩＮＴ２２へ伝送する。インタフェース部ＩＮＴ２２ではＩＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。同様にして、受信する場合は、インタフェース部ＩＮＴ２２でＯＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＩＤＵ側のインタフェース部ＩＮＴ２１へ伝送する。インタフェース部ＩＮＴ２１ではＯＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。
【００６５】
以上より、実施の形態１１によれば、電気信号を伝送する伝送ケーブルの代わりに光信号を伝送する光ファイバケーブルを用いることができるため、ケーブルの敷設工事を容易化し、ケーブルのメンテナンスを容易化することができる。
【００６６】
実施の形態１２.
図１２は、本発明の実施の形態１２における無線装置の現用から予備用へ切り替える無線方法をブロック図で示す。図１２で図６と同じ符号を付したものは同じ機能を有するため説明は省略する。図１２において、符号５０は光信号を伝送する光ファイバケーブルである。
【００６７】
上述の実施の形態６では、伝送ケーブル５を用いてＩＤＵ側とＯＤＵ側との間で電気信号を伝送していたが、本実施の形態１２では、伝送ケーブル５の代わりに、光信号を伝送する光ファイバケーブルを用いることができる。送信する場合は、インタフェース部ＩＮＴ２１でＩＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＯＤＵ側のインタフェース部ＩＮＴ２２へ伝送する。インタフェース部ＩＮＴ２２ではＩＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。同様にして、受信する場合は、インタフェース部ＩＮＴ２２でＯＤＵ側からの送信信号に対して電気信号から光信号への変換を行い、変換された光信号を送信受信共用の光ファイバーケーブル５０によりＩＤＵ側のインタフェース部ＩＮＴ２１へ伝送する。インタフェース部ＩＮＴ２１ではＯＤＵ側から送信された光信号に対して光信号から電気信号への変換を行う。
【００６８】
以上より、実施の形態１２によれば、電気信号を伝送する伝送ケーブルの代わりに光信号を伝送する光ファイバケーブルを用いることができるため、ケーブルの敷設工事を容易化し、ケーブルのメンテナンスを容易化することができる。
【００６９】
実施の形態１３.
図１３は、本発明の実施の形態１３における無線装置を示す。図１３で図４と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１３は、上述された実施の形態４において、現用系のみを備えた構成を有するものである。詳しくは、図４において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信変換部２（７ｂ）、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、受信変換部２（１４ｂ）、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００７０】
以上より、実施の形態１３によれば、実施の形態４において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００７１】
実施の形態１４.
図１４は、本発明の実施の形態１４における無線装置を示す。図１４で図５と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１４は、上述された実施の形態５において、現用系のみを備えた構成を有するものである。詳しくは、図５において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信変換部２（７ｂ）、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、受信変換部２（１４ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００７２】
以上より、実施の形態１４によれば、実施の形態５において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００７３】
実施の形態１５.
図１５は、本発明の実施の形態１５における無線装置を示す。図１５で図６と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１５は、上述された実施の形態６において、現用系のみを備えた構成を有するものである。詳しくは、図６において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、送信変換部２（７ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、受信変換部２（１４ｂ）、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００７４】
以上より、実施の形態１５によれば、実施の形態６において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００７５】
実施の形態１６.
図１６は、本発明の実施の形態１６における無線装置を示す。図１６で図１０と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１６は、上述された実施の形態１０において、現用系のみを備えた構成を有するものである。詳しくは、図１０において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信変換部２（７ｂ）、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、受信変換部２（１４ｂ）、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００７６】
以上より、実施の形態１６によれば、実施の形態１０において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００７７】
実施の形態１７.
図１７は、本発明の実施の形態１７における無線装置を示す。図１７で図１１と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１７は、上述された実施の形態１１において、現用系のみを備えた構成を有するものである。詳しくは、図１１において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信変換部２（７ｂ）、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、受信変換部２（１４ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００７８】
以上より、実施の形態１７によれば、実施の形態１１において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００７９】
実施の形態１８.
図１８は、本発明の実施の形態１８における無線装置を示す。図１８で図１２と同じ符号を付したものは同じ機能を有するため説明は省略する。実施の形態１８は、上述された実施の形態１２において、現用系のみを備えた構成を有するものである。詳しくは、図１２において、送信側は、信号分配器ＨＹＢ２、変調部２（３ｂ）、送信変換部２（７ｂ）、切替スイッチＳＷ４、信号分配器ＨＹＢ６、送信高周波部２（８ｂ）および切替スイッチＳＷ９が構成要素からなくなる。受信側は、信号分配器ＨＹＢ１２、受信高周波部２（１３ｂ）、切替スイッチＳＷ１５、信号分配器ＨＹＢ１７、受信変換部２（１４ｂ）、復調部２（１８ｂ）および切替スイッチＳＷ１９が構成要素からなくなる。
【００８０】
以上より、実施の形態１８によれば、実施の形態１２において現用系のみからなる無線装置とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事のさらなる簡易化、設備全体の低コスト化を実現することができる。
【００８１】
【発明の効果】
以上説明したように、本発明の無線方法および無線装置によれば、ＩＤＵとＯＤＵとの間の伝送ケーブルを１本または２本とすることにより、ＩＤＵ、ＯＤＵ等の据え付け工事の簡易化、設備全体の低コスト化および伝送ケーブルのメンテナンスの簡易化を行なうことができる無線方法および無線装置を提供することができる。
【図面の簡単な説明】
【図１】本発明の実施の形態１における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図２】本発明の実施の形態２における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図３】本発明の実施の形態３における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図４】本発明の実施の形態４における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図５】本発明の実施の形態５における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図６】本発明の実施の形態６における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図７】本発明の実施の形態７における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図８】本発明の実施の形態８における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図９】本発明の実施の形態９における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図１０】本発明の実施の形態１０における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図１１】本発明の実施の形態１１における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図１２】本発明の実施の形態１２における無線装置の現用から予備用へ切り替える無線方法を示すブロック図である。
【図１３】本発明の実施の形態１３における無線装置を示すブロック図である。
【図１４】本発明の実施の形態１４における無線装置を示すブロック図である。
【図１５】本発明の実施の形態１５における無線装置を示すブロック図である。
【図１６】本発明の実施の形態１６における無線装置を示すブロック図である。
【図１７】本発明の実施の形態１７における無線装置を示すブロック図である。
【図１８】本発明の実施の形態１８における無線装置を示すブロック図である。
【図１９】従来の無線装置における現用から予備用へ切り替える無線方法を示すブロック図である。
【図２０】従来の無線装置における現用系のみの無線方法を示すブロック図である。
【符号の説明】
１ＢＢ入力端子、２、６、１２信号分配器ＨＹＢ、３ａ変調部、３ｂ予備変調部、４、９、１５、１９、１７０切替スイッチ、５、５ａ伝送ケーブル、５ｂ予備伝送ケーブル、７ａ送信周波数変換部、７ｂ予備送信周波数変換部、８ａ送信高周波部、８ｂ予備送信高周波部、１０ＲＦ出力端子、１１ＲＦ入力端子、１３ａ受信高周波部、１３ｂ予備受信高周波部、１４ａ受信周波数変換部、１４ｂ予備受信周波数変換部、１６、１６ａ伝送ケーブル、１６ｂ予備伝送ケーブル、１７信号分配器Ｈ、１８ａ復調部、１８ｂ予備復調部、２０ＢＢ出力端子、２１、２２インタフェース部、２３、２４分波器、９０信号合成部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a radio method and a radio apparatus, and more particularly to a radio method for switching radio from an active facility to a standby facility in a radio apparatus having a redundant system facility.
[0002]
[Prior art]
FIG. 19 is a block diagram showing a method for switching from active to standby in a conventional radio apparatus. The radio apparatus shown in FIG. 19 includes a modulation unit, a demodulation unit, a transmission frequency conversion unit, a reception frequency conversion unit, a transmission high frequency unit, and a reception high frequency unit, and is separated into two locations, indoors and outdoors, in different locations. An indoor unit (hereinafter referred to as “IDU”) and an outdoor unit (hereinafter referred to as “ODU”), which are configured units, are installed, and both devices are connected by a transmission cable. In FIG. 13, reference numeral 1 is a BB signal input terminal for inputting a baseband (BB) signal, 2 is a signal distributor HYB for distributing the input signal, and 3a is a current modulator 1 for modulating the input signal. 3b is a spare spare modulator for switching when the working modulator 1 (3a) fails, 7a is a working transmission frequency converter 1 for converting the frequency of the input signal to the carrier frequency band, 7b is a spare spare transmission frequency converter used for switching when the working transmission frequency converter 1 (7a) is out of order, and 5a is a working modulator 1 (3a) and a working transmission frequency converter 1 ( 7a) is used as a working transmission cable, 5b is used as a backup transmission cable for backup, and 8a is input as a backup transmission cable between the backup modulation unit 2 (3b) and the backup transmission frequency conversion unit 2 (7b). Signal The active transmission high-frequency units 1 and 8b to be widened are spare auxiliary transmission high-frequency units used for switching when the active transmission high-frequency unit 1 (8a) is out of order, and 9 is one of the input signals. The changeover switch SW for output 10 is an RF output terminal for outputting an RF (Radio Frequency: RF) signal, 11 is an RF input terminal for inputting an RF signal, 12 is a signal distributor HYB for distributing the input signal, and 13a is an input. The active reception high-frequency units 1 and 13b that amplify the received signal are used as a standby preliminary reception high-frequency unit that is used when the active reception high-frequency unit 1 (13a) fails, and 14a receives the input signal as an intermediate frequency ( Intermediate frequency (IF) signals are converted into active reception frequency converters 1 and 14b that are used when the current reception frequency converter 1 (14a) fails or the like. A spare standby receiving frequency converter 18a is used for demodulating an input signal, and a current demodulator 1 18b is used as a spare spare demodulator for switching when the current demodulator 1 (18a) fails. Reference numeral 16a denotes a current working transmission cable for connecting the working reception frequency converter 1 (14a) and the working demodulator 1 (18a), and 16b denotes a spare spare reception frequency converter 2 (14b) and a spare. A spare spare transmission cable for connecting to the spare demodulator 2 (18b), 19 is a selector switch SW for switching and outputting one of the input signals, and 20 is a BB output terminal for outputting a BB signal. .
[0003]
Next, operations of the IDU and ODU on the transmission side will be described. As shown in FIG. 19, the BB signal input from the BB input terminal 1 is distributed into two by the signal distributor HYB2, and is modulated into an IDU output signal by the current modulator 1 (3a). The IDU output signal is converted into the carrier frequency band by the working transmission frequency conversion unit 1 (7a) on the ODU side connected to the working transmission cable 5a, and further amplified by the working transmission high frequency unit 1 (8a). The system from the current modulation unit 1 (3a) to the current transmission high frequency unit 1 (8a) is called a transmission current route. Similarly, the IDU output signal modulated by the backup modulation unit 2 (3b) passes through the backup transmission frequency conversion unit 2 (7b) on the ODU side connected to the backup transmission cable 5b, and the backup transmission high frequency unit 2 (8b). It is amplified by. The system from the spare modulation unit 2 (3b) to the spare transmission high frequency unit 2 (8b) is referred to as a transmission spare route. The changeover switch SW9 instantaneously automatically switches to the backup transmission route when the transmission working route is out of order. The RF output terminal 10 outputs either a working transmission route signal or a backup transmission route signal.
[0004]
The procedure for automatic switching on the transmission side will be described in detail. A failure detection signal output from the modulation unit 1 (3a) or the backup modulation unit 2 (3b), a failure detection signal output from the transmission frequency conversion unit 1 (7a) or the backup transmission frequency conversion unit 2 (7b), and The failure detection signals output from the transmission high-frequency unit 1 (8a) or the preliminary transmission high-frequency unit 2 (8b) are collected by an alarm control processing unit (not shown) in either or both of the IDU and the ODU, , And a switching control signal is generated and transmitted to the selector switch SW9 for switching control. Therefore, an alarm transmission cable (not shown) for transmitting the alarm signal and the switching control signal is provided between the IDU and the ODU. This alarm transmission cable is provided separately from the transmission cable 5a and the spare transmission cable 5b, or is shared with the transmission cable 5a and the like.
[0005]
Next, operations of the IDU and ODU on the receiving side will be described. The RF signal input from the RF input terminal 11 is divided into two by the signal distributor HYB12 and amplified by the current reception high-frequency unit 1 (13a), and then the IF band by the current reception frequency conversion unit 1 (14a). Converted into a signal (ODU output signal). The ODU output signal is transmitted to the working demodulator 1 (18a) on the IDU side connected to the working transmission cable 16a and demodulated into a BB signal. This system from the active reception high frequency unit 1 (14a) to the active demodulation unit 1 (18a) is called a reception active route. Similarly, the ODU output signal amplified by the preliminary reception high frequency unit 2 (13b) and converted into the IF band signal by the preliminary reception frequency conversion unit 2 (14b) is preliminarily demodulated on the IDU side connected to the preliminary transmission cable 16b. It is transmitted to part 2 (18b) and demodulated into a BB signal. The system from the preliminary reception high frequency unit 2 (14b) to the preliminary demodulation unit 2 (18b) is called a reception preliminary route. The change-over switch SW19 instantaneously automatically switches to the standby reception route when the current reception route fails. The BB output terminal outputs either a current reception route signal or a standby reception route signal.
[0006]
The above-described automatic switching procedure on the receiving side will be described in detail. Failure detection signal output from reception high frequency unit 1 (13a) or standby reception high frequency unit 2 (13b), and failure detection signal output from reception frequency conversion unit 1 (14a) or standby reception frequency conversion unit 2 (14b) And the failure detection signals output from the demodulator 1 (18a) or the preliminary demodulator 2 (18b) are collected by an alarm control processing unit (not shown) in either or both of the ODU and the IDU to generate an alarm signal. , And a switch control signal is generated and transmitted to the switch SW19 for switching control. Therefore, an alarm transmission cable (not shown) for transmitting the alarm signal and the switching control signal is provided between the IDU and the ODU. The alarm transmission cable is provided separately from the transmission cable 16a and the spare transmission cable 16b, or is shared with the transmission cable 16a and the like.
As described above, between the IDU and the ODU in the conventional wireless device, on the transmission side, the working transmission route and the backup transmission route are connected one-to-one by the transmission cable 5a and the backup transmission cable 5b, respectively. The active reception route and the standby reception route are connected one-to-one by the transmission cable 16a and the transmission cable 16b, respectively.
[0007]
FIG. 20 shows a block diagram of another conventional radio apparatus. The radio apparatus shown in FIG. 20 has components only for the active system in the radio apparatus shown in FIG. Specifically, in FIG. 19, on the transmission side, the signal distributor HYB2, the modulation unit 2 (3b), the transmission cable 5b, the transmission conversion unit 2 (7b), the transmission high-frequency unit 2 (8b), and the changeover switch SW9 are composed of components. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the reception conversion unit 2 (14b), the transmission cable 16b, the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0008]
[Problems to be solved by the invention]
As described above, a conventional wireless device having an IDU and an ODU includes an active transmission or reception route and a backup transmission or reception route including a transmission cable between the IDU and the ODU. As a result, four transmission cables are required between the IDU and ODU, which complicates the installation work of the IDU, ODU, etc., increases the cost of the entire equipment, and complicates the maintenance of many transmission cables. was there. Accordingly, an object of the present invention has been made to solve the above-described problem. By using one or two transmission cables between the IDU and the ODU, the installation work of the IDU, ODU, etc. can be simplified. It is an object of the present invention to provide a wireless method and a wireless device capable of reducing the cost of the entire facility and simplifying the maintenance of a transmission cable.
[0009]
[Means for Solving the Problems]
A radio method according to the present invention includes a modulation unit having a current modulation unit that modulates an input signal and a backup modulation unit that is a backup of the current modulation unit, and a current transmission frequency that converts the frequency of the input signal to a carrier frequency band A transmission frequency converter having a converter and a spare transmission frequency converter serving as a spare for the working transmission frequency converter; a working transmission high-frequency unit for amplifying an input signal; and a spare transmission for backup of the working transmission high-frequency unit A transmission high-frequency unit having a high-frequency unit, a reception high-frequency unit having an active reception high-frequency unit for amplifying an input signal and a preliminary reception high-frequency unit for backup of the current reception high-frequency unit, and an active use for converting an input signal into an IF signal A reception frequency conversion unit having a reception frequency conversion unit and a backup reception frequency conversion unit for backup of the current reception frequency conversion unit, a current demodulation unit for demodulating an input signal, and the current recovery A wireless method between active and standby in a radio apparatus having a demodulator having a spare demodulator that is a spare for a part, wherein a transmitting side converts an input baseband signal into an active modulator or a spare modulation A baseband signal distribution step that distributes the signal to the first baseband signal, a current modulation step that modulates the signal distributed in the baseband signal distribution step by the current modulation unit, and a signal that is distributed in the baseband signal distribution step by the spare modulation unit. A preliminary modulation step for modulating, a transmission signal selection step for selecting one of the signals modulated in the modulation step and the preliminary modulation step, and a transmission cable for selecting the signal selected in the transmission signal selection step. A first connection step for connecting to the transmission conversion unit via the first connection step and the signal connected in the first connection step in the active transmission frequency conversion unit A working transmission frequency converting step for converting, a working transmitting RF step for amplifying the signal converted in the working transmitting frequency converting step in a working transmitting high frequency unit, and a signal connected in the first connecting step as a standby transmitting frequency converting unit A preliminary transmission frequency converting step for converting in the preliminary transmission RF step, a preliminary transmission RF step for amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high-frequency unit, the active transmission RF step, and the preliminary transmission RF step A transmission output step for outputting a signal based on a signal, wherein the transmission signal selection step switches the current modulation unit to a standby modulation unit when the current modulation unit fails, and the transmission output step is a current transmission frequency conversion unit Alternatively, when the active transmission high-frequency unit fails, the active transmission frequency conversion unit and the active transmission high-frequency unit are reserved. The transmission side is switched to a transmission frequency conversion unit and a preliminary transmission high-frequency unit, and the reception side is distributed in a reception signal distribution step for distributing the received RF signal to the active reception high-frequency unit or the standby reception high-frequency unit and the reception signal distribution step. An active reception RF step for amplifying the received signal by an active reception high frequency unit, an active reception frequency conversion step for converting the signal amplified in the reception RF step into an IF signal by an active reception frequency conversion unit, and a reception signal distribution step Preliminary reception RF step for amplifying the distributed signal at the preliminary reception high frequency unit, preliminary reception frequency conversion step for converting the signal amplified at the preliminary reception RF step into an IF signal at the preliminary reception frequency conversion unit, and the active reception Any one of the signals converted in the frequency conversion step and the preliminary reception frequency conversion step A reception signal selection step for selecting a signal; a second connection step for connecting the signal selected in the reception signal selection step to a demodulator through a reception cable; and a signal demodulated for the signal connected in the second connection step One of the signals demodulated in the active demodulation step, the preliminary demodulation step in which the signal connected in the second connection step is demodulated in the preliminary demodulation unit, and the active demodulation step and the preliminary demodulation step A reception output selection step of selecting and outputting one signal, and the reception signal selection step includes the active reception high frequency unit and the active reception frequency conversion unit when the active reception high frequency unit or the active reception frequency conversion unit fails. Is switched to a preliminary reception high frequency unit and a preliminary reception frequency conversion unit, the reception output selection step, when the active demodulation unit is broken, It is intended to switch the working demodulator to the standby demodulator.
[0010]
Here, in the radio method according to the present invention, the first connection step distributes the signal selected in the transmission signal selection step to an active transmission frequency conversion unit and a backup transmission frequency conversion unit, and the transmission output step includes: One of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the second connection step is a demodulator for the signal selected in the reception signal selection step And can be distributed to the preliminary demodulation unit.
[0011]
Here, in the radio method according to the present invention, in the first connection step, the signal selected in the transmission signal selection step is switched and connected to either the active transmission frequency conversion unit or the backup transmission frequency conversion unit, and the transmission The output step selects and outputs one of the signals amplified in the transmission RF step and the preliminary transmission RF step, and the second connection step is selected in the reception signal selection step The signal can be switched and connected to either one of the current demodulator or the standby demodulator.
[0012]
Here, in the radio method according to the present invention, the first connection step distributes the signal selected in the transmission signal selection step to an active transmission frequency conversion unit and a backup transmission frequency conversion unit, and the transmission output step includes: The signals amplified in the active transmission RF step and the preliminary transmission RF step are synthesized and output, and the second connection step distributes the signal selected in the reception signal selection step to the demodulation unit and the preliminary demodulation unit It is something that can be done.
[0013]
A radio method according to the present invention includes a modulation unit having a current modulation unit that modulates an input signal and a backup modulation unit that is a backup of the current modulation unit, and a current transmission frequency that converts the frequency of the input signal to a carrier frequency band A transmission frequency converter having a converter and a spare transmission frequency converter serving as a spare for the working transmission frequency converter; a working transmission high-frequency unit for amplifying an input signal; and a spare transmission for backup of the working transmission high-frequency unit A transmission high-frequency unit having a high-frequency unit, a reception high-frequency unit having an active reception high-frequency unit for amplifying an input signal and a preliminary reception high-frequency unit for backup of the current reception high-frequency unit, and an active use for converting an input signal into an IF signal A reception frequency conversion unit having a reception frequency conversion unit and a backup reception frequency conversion unit for backup of the current reception frequency conversion unit, a current demodulation unit for demodulating an input signal, and the current recovery In a radio apparatus comprising a demodulator having a spare demodulator for spare parts, an indoor device having the modulator and demodulator, and an outdoor device having the transmit high frequency unit and the receive high frequency unit A wireless method for switching between active and standby, wherein the indoor device side transmission step includes a baseband signal distribution step of distributing the input baseband signal to the active modulation unit and the backup modulation unit, and the baseband signal distribution A current modulation step for modulating the signal distributed in the step by a current modulation unit; a preliminary modulation step for modulating the signal distributed in the baseband signal distribution step by a preliminary modulation unit; the current modulation step and the preliminary modulation step; When one of the signals modulated in the above is selected and the current modulation unit fails, the current modulation unit is replaced with the spare modulation unit. A transmission signal selection step for switching, and a transmission side transmission step for transmitting the signal selected in the transmission signal selection step to the outdoor device side via a transmission cable, and the outdoor device side transmission step is the transmission side transmission step. A transmission signal distribution step for distributing the transmitted signal to the transmission high-frequency unit side, a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step, and a demultiplexing in the transmission side demultiplexing step A transmission side demultiplexing signal distribution step for distributing the signal to the working transmission frequency converting unit and the backup transmission frequency converting unit, and a working transmission conversion for converting the signal distributed in the transmitting side demultiplexing signal distributing step by the working transmission frequency converting unit An active transmission RF step for amplifying the signal converted in the active transmission conversion step by an active transmission high-frequency unit, and the demultiplexing signal distribution step A preliminary transmission conversion step for converting a signal distributed in the step by a preliminary transmission frequency conversion unit; a preliminary transmission RF step for amplifying the signal converted by the preliminary transmission conversion step by a preliminary transmission high frequency unit; and the active transmission RF step. And any one of the signals amplified in the preliminary transmission RF step and outputs the selected signal, and when the working transmission frequency conversion unit or the working transmission high frequency unit fails, the working transmission frequency conversion unit and the working transmission frequency unit A transmission output step for switching the transmission high-frequency unit to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit, and the outdoor device side reception step distributes the received RF signal to the active reception high-frequency unit and the standby reception high-frequency unit. And a working reception R for amplifying the signal distributed in the receiving signal distribution step by a working reception high-frequency unit. One of a step, a preliminary reception RF step for amplifying the signal distributed in the reception signal distribution step by a preliminary reception high frequency unit, and a signal amplified in the active reception frequency conversion unit and the preliminary reception frequency conversion unit When one signal is selected and the active reception high-frequency unit fails, the reception signal selection step of switching the active reception high-frequency unit to the standby reception high-frequency unit, and the signal selected in the reception signal selection step via the transmission cable A reception-side transmission step for transmitting to the indoor device side, and the indoor-device-side reception step distributes the signal transmitted in the reception-side transmission step to the demodulation unit side, and the reception signal distribution A receiving-side demultiplexing step for demultiplexing the signal distributed in the step, and the signal demultiplexed in the receiving-side demultiplexing step to change the active receiving frequency. Receiving side demultiplexing signal distribution step for distributing to the receiver and the spare receiving frequency converting unit, and a working receiving frequency converting step for converting the signal distributed in the receiving side demultiplexing signal distributing step into an IF signal by the working receiving frequency converting unit; A working demodulating step for demodulating the signal converted in the working receiving frequency converting step by a working demodulating unit; and a signal for distributing the signal distributed in the receiving side demultiplexing signal distributing step to an IF signal by a spare receiving frequency converting unit. Any one of a reception frequency conversion step, a preliminary demodulation step in which the signal converted in the preliminary reception frequency conversion step is demodulated by a preliminary demodulation unit, and a signal demodulated in the active demodulation step and the preliminary demodulation step When one of the signals is selected and output, and the active reception frequency converter or the active demodulator fails, the active reception frequency converter and And a reception output selection step for switching the active demodulator to a spare reception frequency converter and a spare demodulator.
[0014]
Here, in the radio method according to the present invention, the outdoor device side reception step, after the active reception RF step, converts the signal amplified by the active reception RF step into an IF signal by an active reception frequency converter. A frequency conversion step; and a preliminary reception frequency conversion step of converting the signal amplified in the preliminary reception RF step into an IF signal by the preliminary reception frequency converter after the preliminary reception RF step, the reception signal selection step Selects one of the signals converted in the active reception frequency conversion step and the preliminary reception frequency conversion step, and the indoor device side reception step transmits in the reception side transmission step A received signal distribution step for distributing the received signal to the demodulator side, and the received signal distribution step Receiving-side demultiplexing step for demultiplexing the signal distributed in step, receiving-side demultiplexing signal distributing step for distributing the signal demultiplexed in the receiving-side demultiplexing step to the active demodulation unit and the standby demodulation unit, and the reception An active demodulation step for demodulating the signal distributed in the side demultiplexing signal distribution step by an active demodulation unit; a preliminary demodulation step for demodulating the signal distributed in the reception side demultiplexing signal distribution step by a preliminary demodulation unit; A reception output selection step of selecting and outputting one of the signals demodulated in the demodulation step and the preliminary demodulation step, and switching the active demodulation unit to the preliminary demodulation unit when the active demodulation unit fails; and Can be provided.
[0015]
Here, in the radio method according to the present invention, the indoor apparatus side transmission step includes, after the active modulation step, an active transmission frequency converting step for converting the signal modulated in the active modulation step, and after the preliminary modulation step. A preliminary transmission frequency conversion step for converting the signal modulated in the preliminary modulation step, wherein the transmission signal selection step includes the signals converted in the active transmission frequency conversion step and the preliminary transmission frequency conversion step. Any one signal is selected and output, and when the current modulation unit or the current transmission frequency conversion unit fails, the current modulation unit and the current transmission frequency conversion unit are switched to the modulation unit and the backup transmission frequency conversion unit. The outdoor device side transmission step transmits the signal transmitted in the transmission side transmission step. A transmission signal distribution step for distributing to the wave part side, a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step, and an active transmission high-frequency part for the signal demultiplexed in the transmission side demultiplexing step And a transmission-side demultiplexing signal distribution step for distributing to the pre-transmission high-frequency unit, an active transmission RF step for amplifying the signal distributed in the transmission-side demultiplexing signal distribution step by the active transmission high-frequency unit, and the demultiplexing signal distribution step The preliminary transmission RF step for amplifying the signal distributed in the preliminary transmission high-frequency unit, and selecting and outputting one of the signals amplified in the active transmission RF step and the preliminary transmission RF step, And a transmission output step for switching the active transmission high-frequency unit to the standby transmission high-frequency unit when the active transmission high-frequency unit fails.
[0016]
A radio method according to the present invention includes a modulation unit having a current modulation unit that modulates an input signal and a backup modulation unit that is a backup of the current modulation unit, and a current transmission frequency that converts the frequency of the input signal to a carrier frequency band A transmission frequency converter having a converter and a spare transmission frequency converter serving as a spare for the working transmission frequency converter; a working transmission high-frequency unit for amplifying an input signal; and a spare transmission for backup of the working transmission high-frequency unit A transmission high-frequency unit having a high-frequency unit, a reception high-frequency unit having an active reception high-frequency unit for amplifying an input signal and a preliminary reception high-frequency unit for backup of the current reception high-frequency unit, and an active use for converting an input signal into an IF signal A reception frequency conversion unit having a reception frequency conversion unit and a backup reception frequency conversion unit for backup of the current reception frequency conversion unit, a current demodulation unit for demodulating an input signal, and the current recovery In a radio apparatus comprising a demodulator having a spare demodulator for spare parts, an indoor device having the modulator and demodulator, and an outdoor device having the transmit high frequency unit and the receive high frequency unit A wireless method for switching between active and standby, wherein the indoor device side transmission step includes a baseband signal distribution step of distributing the input baseband signal to the active modulation unit and the backup modulation unit, and the baseband signal distribution A current modulation step for modulating the signal distributed in the step by a current modulation unit; a preliminary modulation step for modulating the signal distributed in the baseband signal distribution step by a preliminary modulation unit; the current modulation step and the preliminary modulation step; When one of the signals modulated in the above is selected and the current modulation unit fails, the current modulation unit is replaced with the spare modulation unit. A transmission signal selection step for switching, and a transmission side transmission step for transmitting the signal selected in the transmission signal selection step to the outdoor device side via a transmission cable, and the outdoor device side transmission step is the transmission side transmission step. A transmission signal distribution step for distributing the transmitted signal to the transmission high-frequency unit side, a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step, and a demultiplexing in the transmission side demultiplexing step A transmission side demultiplexing signal switching step for switching the signal to either the working transmission frequency converting unit or the standby transmission frequency converting unit, and a working transmission frequency converting unit for converting the signal switched in the transmission side demultiplexing signal switching step. A transmission conversion step; an active transmission RF step for amplifying the signal converted in the active transmission conversion step by an active transmission high-frequency unit; and A preliminary transmission conversion step for converting the signal switched in the transmission side demultiplexing signal switching step by the preliminary transmission frequency conversion unit; and a preliminary transmission RF step for amplifying the signal converted in the preliminary transmission conversion step by the preliminary transmission high frequency unit; When one of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission A transmission output step for switching the frequency conversion unit and the active transmission high-frequency unit to a standby transmission frequency conversion unit and a standby transmission high-frequency unit, and the outdoor device-side reception step uses the received RF signal as the active reception high-frequency unit and the standby reception high-frequency unit. Received signal distribution step, and the signal distributed in the received signal distribution step to the active reception high-frequency unit A reception RF step for amplifying the signal, a standby reception RF step for amplifying the signal distributed in the reception signal distribution step by a preliminary reception high-frequency unit, and the active reception frequency conversion unit and the preliminary reception frequency conversion unit. When one of the received signals is selected and the active reception high-frequency unit fails, the reception signal selection step of switching the active reception high-frequency unit to the standby reception high-frequency unit, and the signal selected in the reception signal selection step Receiving side transmission step for transmitting to the indoor device side via the transmission cable, and the indoor device side reception step includes a reception signal distribution step for distributing the signal transmitted in the reception side transmission step to the demodulation unit side; A receiving side demultiplexing step for demultiplexing the signal distributed in the receiving signal distributing step, and a signal demultiplexed in the receiving side demultiplexing step. The received-side demultiplexing signal switching step to switch to either the working reception frequency converting unit or the standby receiving frequency converting unit, and the signal switched in the receiving-side demultiplexing signal switching step to the IF signal in the working receiving frequency converting unit A working reception frequency converting step for converting, a working demodulating step for demodulating the signal converted in the working receiving frequency converting step by a working demodulator, and a preliminary receiving frequency conversion for the signal switched in the receiving side demultiplexing signal switching step A preliminary reception frequency converting step for converting to an IF signal in the unit, a preliminary demodulation step for demodulating the signal converted in the preliminary reception frequency conversion step by a preliminary demodulation unit, and a demodulation in the active demodulation step and the preliminary demodulation step Any one of the received signals is selected and output, and the working reception frequency converter or working demodulator fails. A reception output selection step for switching the working reception frequency converting unit and the working demodulating unit to a standby receiving frequency converting unit and a standby demodulating unit.
[0017]
Here, in the radio method according to the present invention, the outdoor device side reception step, after the active reception RF step, converts the signal amplified by the active reception RF step into an IF signal by an active reception frequency converter. A frequency conversion step; and a preliminary reception frequency conversion step of converting the signal amplified in the preliminary reception RF step into an IF signal by the preliminary reception frequency converter after the preliminary reception RF step, the reception signal selection step Selects one of the signals converted in the active reception frequency conversion step and the preliminary reception frequency conversion step, and the indoor device side reception step transmits in the reception side transmission step A received signal distribution step for distributing the received signal to the demodulator side, and the received signal distribution step A receiving-side demultiplexing step for demultiplexing the signal distributed in step, a receiving-side demultiplexing signal switching step for switching the signal demultiplexed in the receiving-side demultiplexing step to an active demodulation unit or a standby demodulation unit, and the receiving side An active demodulation step for demodulating the signal switched in the demultiplexing signal switching step by the active demodulation unit, a preliminary demodulation step for demodulating the signal switched in the reception side demultiplexing signal switching step by the preliminary demodulation unit, and the active demodulation And selecting and outputting one of the signals demodulated in the step and the preliminary demodulation step, and a reception output selection step for switching the current demodulation unit to the preliminary demodulation unit when the current demodulation unit fails It can be prepared.
[0018]
Here, in the radio method according to the present invention, the indoor apparatus side transmission step includes, after the active modulation step, an active transmission frequency converting step for converting the signal modulated in the active modulation step, and after the preliminary modulation step. A preliminary transmission frequency conversion step for converting the signal modulated in the preliminary modulation step, wherein the transmission signal selection step includes the signals converted in the active transmission frequency conversion step and the preliminary transmission frequency conversion step. Any one signal is selected and output, and when the current modulation unit or the current transmission frequency conversion unit fails, the current modulation unit and the current transmission frequency conversion unit are switched to the modulation unit and the backup transmission frequency conversion unit. The outdoor device side transmission step transmits the signal transmitted in the transmission side transmission step. A transmission signal distribution step for distributing to the wave part side, a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step, and an active transmission high-frequency part for the signal demultiplexed in the transmission side demultiplexing step Or a transmission-side demultiplexing signal switching step for switching to either the pre-transmission high-frequency unit, a working transmission RF step for amplifying the signal switched in the transmission-side demultiplexing signal switching step by the working transmission high-frequency unit, A preliminary transmission RF step for amplifying the signal switched in the wave signal switching step by the preliminary transmission high-frequency unit, and one of the signals amplified in the active transmission RF step and the preliminary transmission RF step. A transmission output step for switching the active transmission high-frequency unit to the standby transmission high-frequency unit when the active transmission high-frequency unit fails. Is shall.
[0019]
Here, in the wireless method of the present invention, the transmission cable is an optical fiber cable, and in the indoor device side transmission step, the transmission side transmission step converts the electrical signal selected in the transmission signal selection step into an optical signal. The optical signal is transmitted to the outdoor device side via the optical fiber cable, and in the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electrical signal, and transmits it to the transmission side. In the outdoor device side receiving step, the receiving side transmission step converts the electrical signal selected in the received signal selection step into an optical signal and transmits it to the indoor device via the optical fiber cable. In the indoor device side reception step, the reception signal distribution step is transmitted in the reception side transmission step. The optical signals are those that can be converted into an electric signal distributed to the receiving side the indoor unit side.
[0020]
A wireless device according to the present invention includes a transmission-side indoor device, a transmission-side outdoor device, a transmission cable connecting the transmission-side indoor device and the transmission-side outdoor device, a reception-side outdoor device, a reception-side indoor device, and the reception-side A wireless device having a reception cable for connecting between an outdoor device and the receiving indoor device, wherein the transmitting indoor device distributes an input baseband signal, and the baseband signal Any of a modulation unit that modulates the signal distributed by the distribution unit, a preliminary modulation unit that modulates the signal distributed by the baseband signal distribution unit, and a signal modulated by the modulation unit and the preliminary modulation unit A transmission signal selection unit that switches the modulation unit to a backup modulation unit when the modulation unit fails, and the transmission-side outdoor device transmits the signal selected by the transmission signal selection unit in advance. A first connecting unit connected via a transmission cable; a transmission frequency converting unit for converting a frequency of a signal connected at the first connecting unit to a carrier frequency band; and amplifying the signal converted by the transmitting frequency converting unit A transmission high-frequency unit, a preliminary transmission conversion unit that converts the frequency of the signal connected by the first connection unit into a carrier frequency band, and a preliminary transmission high-frequency unit that amplifies the signal converted by the preliminary transmission conversion unit, When the transmission frequency converter or the transmission high-frequency unit fails, the amplified signal is output from the transmission high-frequency unit and the preliminary transmission high-frequency unit. And a transmission output unit for switching to a preliminary transmission high-frequency unit, and the reception-side outdoor device includes a reception signal distribution unit that distributes a received RF signal and a signal distributed by the reception signal distribution unit. A reception high-frequency unit that amplifies the signal distributed by the reception signal distribution unit, a reception frequency conversion unit that converts the signal amplified by the reception high-frequency unit into an IF signal, A reception reception frequency conversion unit that converts the signal amplified by the reception high-frequency unit into an IF signal; and a signal converted by the reception frequency conversion unit and the preliminary reception frequency conversion unit is selected, and the reception high-frequency unit or reception frequency conversion is selected. A reception signal selection unit that switches the reception high-frequency unit and the reception frequency conversion unit to a standby reception high-frequency unit and a standby reception frequency conversion unit when the unit malfunctions, and the reception-side indoor unit is the reception signal selection unit A second connection for connecting the selected signal, a demodulator for demodulating the signal connected at the second connection, and a preliminary demodulation for demodulating the signal connected at the second connection And a reception output selection unit that selects and outputs a signal demodulated in the demodulation unit and the preliminary demodulation unit, and switches the demodulation unit to the preliminary demodulation unit when the demodulation unit fails Is.
[0021]
The wireless device of the present invention includes a transmission-side indoor device, a reception-side indoor device, an indoor device including the transmission-side indoor device and the reception-side indoor device, a transmission-side outdoor device, a reception-side outdoor device, and the transmission-side outdoor device. An outdoor device including the receiving-side outdoor device, and a wireless device having a transmission cable connecting the indoor device and the outdoor device, wherein the transmitting-side indoor device is a base that distributes an input baseband signal. A band signal distributor, a modulator that modulates a signal distributed by the baseband signal distributor, a preliminary modulator that modulates a signal distributed by the baseband signal distributor, the modulator, and the preliminary modulation When the modulation unit fails, the transmission signal selection unit that switches the modulation unit to the standby modulation unit and the signal selected by the transmission signal selection unit are selected. transmission A transmission-side transmission unit that transmits to the outdoor device via a cable, and the transmission-side outdoor device distributes a signal transmitted from the transmission-side transmission unit to the transmission-side outdoor device side; and A transmission-side demultiplexing unit for demultiplexing the signal distributed by the transmission signal distribution unit; a transmission-side demultiplexing signal distribution unit for distributing the signal demultiplexed by the transmission-side demultiplexing unit; and the transmission-side demultiplexing A working transmission frequency converter for converting the frequency of the signal distributed by the signal distributor to a carrier frequency band; a working transmission high-frequency unit for amplifying the signal converted by the working transmission frequency converter;
A preliminary transmission frequency converter that converts the frequency of the signal distributed by the transmission-side demultiplexing signal distributor to a carrier frequency band; a preliminary transmission high-frequency unit that amplifies the signal converted by the preliminary transmission frequency converter; and When one of the signals amplified in the active transmission high-frequency unit and the preliminary transmission high-frequency unit is selected and output, and the active transmission frequency conversion unit or the active transmission high-frequency unit fails, the active transmission frequency conversion unit And a transmission output unit that switches the active transmission high-frequency unit to a standby transmission frequency conversion unit and a standby transmission high-frequency unit, the reception-side outdoor device includes a reception signal distribution unit that distributes a received RF signal, and the reception signal A working reception high-frequency unit for amplifying the signal distributed by the distribution unit, a standby reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit, and the working reception high-frequency unit A reception signal selection unit that selects one of the signals amplified in the preliminary reception RF and switches the active reception high-frequency unit to a preliminary reception high-frequency unit when the active reception high-frequency unit fails; and the reception A reception-side transmission unit that transmits the signal selected by the signal selection unit to the indoor device side via the transmission cable, and the reception-side indoor device receives the signal transmitted from the reception-side transmission unit in the reception-side indoor unit A reception signal distributor for distributing to the apparatus side, a reception side demultiplexer for demultiplexing the signal distributed by the reception signal distributor, and a receiver for distributing the signal demultiplexed by the receiver side demultiplexer A wave signal distribution unit, a working reception frequency conversion unit that converts the signal distributed by the receiving side demultiplexing signal distribution unit into an IF signal, and a working demodulation unit that demodulates the signal converted by the working reception frequency conversion unit; , The receiving side demultiplexed signal component A preliminary reception frequency converter that converts the signal distributed by the receiver into an IF signal, a preliminary demodulator that demodulates the signal converted by the preliminary reception frequency converter, and the demodulator and the preliminary demodulator When one of the received signals is selected and output, and the working reception frequency converting unit or the working demodulating unit fails, the working receiving frequency converting unit and the working demodulating unit are replaced with the spare receiving frequency converting unit and the spare demodulating unit. And a reception output selection unit for switching to the demodulation unit.
[0022]
The wireless device of the present invention includes a transmission-side indoor device, a reception-side indoor device, an indoor device including the transmission-side indoor device and the reception-side indoor device, a transmission-side outdoor device, a reception-side outdoor device, and the transmission-side outdoor device. An outdoor device including the receiving-side outdoor device, and a wireless device having a transmission cable connecting the indoor device and the outdoor device, wherein the transmitting-side indoor device is a base that distributes an input baseband signal. A band signal distributor, a modulator that modulates a signal distributed by the baseband signal distributor, a preliminary modulator that modulates a signal distributed by the baseband signal distributor, the modulator, and the preliminary modulation When the modulation unit fails, the transmission signal selection unit that switches the modulation unit to the standby modulation unit and the signal selected by the transmission signal selection unit are selected. transmission A transmission-side transmission unit that transmits to the outdoor device via a cable, and the transmission-side outdoor device distributes a signal transmitted from the transmission-side transmission unit to the transmission-side outdoor device side; and A transmission-side demultiplexing unit that demultiplexes the signal distributed by the transmission signal distribution unit; a transmission-side demultiplexing signal switching unit that switches a signal demultiplexed by the transmission-side demultiplexing unit; and the transmission-side demultiplexing signal An active transmission frequency converter for converting the frequency of the signal switched by the switching unit to a carrier frequency band; an active transmission high-frequency unit for amplifying the signal converted by the active transmission frequency converter; and the transmission side demultiplexing signal switching A spare transmission frequency converter that converts the frequency of the signal switched in the unit into a carrier frequency band, a preliminary transmission high-frequency unit that amplifies the signal converted by the preliminary transmission frequency converter, the active transmission high-frequency unit, and the standby Sending When one of the signals amplified in the high frequency unit is selected and output, and the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission frequency conversion unit and the active transmission high frequency unit are reserved. A transmission output unit that switches to a transmission frequency conversion unit and a preliminary transmission high-frequency unit, and the reception-side outdoor device includes a reception signal distribution unit that distributes a received RF signal, and a signal distributed by the reception signal distribution unit The active reception high-frequency unit to be amplified, the preliminary reception high-frequency unit to amplify the signal distributed by the reception signal distribution unit, and any one of the signals amplified in the active reception high-frequency unit and the preliminary reception RF When the active reception high-frequency unit is selected, the reception signal selection unit that switches the active reception high-frequency unit to the standby reception high-frequency unit, and the signal selected by the reception signal selection unit Receiving side transmission unit for transmitting the signal transmitted from the receiving side transmission unit to the receiving side indoor unit side, the receiving side transmission unit transmitting the signal to the indoor unit side via the transmission cable A receiving side demultiplexing unit that demultiplexes the signal distributed by the receiving signal distributing unit, a receiving side demultiplexing signal switching unit that switches a signal demultiplexed by the receiving side demultiplexing unit, and the receiving side A working reception frequency converting unit that converts the signal switched by the demultiplexing signal switching unit into an IF signal, a working demodulating unit that demodulates the signal converted by the working receiving frequency converting unit, and the receiving side demultiplexing signal switching unit The preliminary reception frequency converter that converts the signal switched in step 1 to the IF signal, the preliminary demodulator that demodulates the signal converted by the preliminary reception frequency converter, and the demodulator and the preliminary demodulator One of the signals Receiving output selection for switching the working reception frequency converting unit and the working demodulating unit to the spare receiving frequency converting unit and the spare demodulating unit when the working receiving frequency converting unit or the working demodulating unit fails Part.
[0023]
Here, in the wireless device according to the present invention, the transmission cable is an optical fiber cable, and in the transmission-side indoor device, the transmission-side transmission unit converts the electrical signal selected by the transmission signal selection unit into an optical signal, and An optical signal is transmitted to the outdoor device side via the optical fiber cable, and the transmission signal distribution unit converts the optical signal transmitted from the transmission side transmission unit into an electrical signal in the transmission side outdoor device, and transmits the transmission side outdoor device. In the receiving-side outdoor device, the receiving-side transmission unit converts the electrical signal selected by the received signal selection unit into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable. In the indoor device, the reception signal distribution unit can convert the optical signal transmitted from the reception side transmission unit into an electric signal and distribute it to the reception side indoor device side. .
[0024]
The wireless method of the present invention includes a modulation unit that modulates an input signal, a transmission frequency conversion unit that converts the frequency of the input signal to a carrier frequency band, a transmission high-frequency unit that amplifies the input signal, and reception that amplifies the input signal. A high-frequency unit, a reception frequency conversion unit that converts an input signal into an IF signal, and a demodulation unit that demodulates the input signal, the modulation unit, the indoor device having the demodulation unit, the transmission high-frequency unit, and the reception high-frequency unit A wireless method in a wireless device comprising an outdoor device having an indoor device side, wherein the indoor device side transmission step includes: a modulation step of modulating an input baseband signal by a modulation unit; and a transmission cable for the signal modulated in the modulation step A transmission side transmission step for transmitting to the outdoor device side through the outdoor device side transmission step. The outdoor device side transmission step transmits the signal transmitted in the transmission side transmission step. A transmission signal distribution step for distributing to the high frequency unit side, a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step, and a transmission frequency converting unit for the signal demultiplexed in the transmission side demultiplexing step An outdoor device comprising: a transmission conversion step that converts the signal in the transmission conversion step; a transmission RF step that amplifies the signal converted in the transmission conversion step in a transmission high-frequency unit; and a transmission output step that outputs the signal amplified in the transmission RF step. The side reception step includes a reception RF step for amplifying the received RF signal by a reception high-frequency unit, and a reception side transmission step for transmitting the signal amplified in the reception RF step to the indoor device side via the transmission cable. And the indoor device side receiving step distributes the signal transmitted in the receiving side transmission step to the demodulation unit side. A receiving side demultiplexing step for demultiplexing the signal distributed in the receiving signal distributing step, and a receiving frequency converting step for converting the signal demultiplexed in the receiving side demultiplexing step into an IF signal by a receiving frequency converting unit When,
A demodulation step for demodulating the signal converted in the reception frequency conversion step by a demodulator, and a reception output step for outputting the signal demodulated in the demodulation step.
[0025]
Here, in the radio method according to the present invention, the outdoor device side reception step includes, after the reception RF step, a reception frequency conversion step of converting the signal amplified by the reception RF step into an IF signal by a reception frequency conversion unit. The indoor device side reception step further includes a reception signal distribution step for distributing the signal transmitted in the reception side transmission step to the demodulation unit side, and a reception side for demultiplexing the signal distributed in the reception signal distribution step A demultiplexing step, a demodulating step for demodulating the signal demultiplexed in the receiving-side demultiplexing step by a demodulator, and a receiving output step for outputting the signal demodulated in the demodulating step. .
[0026]
Here, in the wireless method of the present invention, the indoor device side transmission step further includes a transmission frequency conversion step of converting the signal modulated in the modulation step after the modulation step, and the outdoor device side transmission step includes: A transmission signal distribution step for distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side; a transmission side demultiplexing step for demultiplexing the signal distributed in the transmission signal distribution step; and A transmission RF step for amplifying the signal demultiplexed in the wave step by the transmission high-frequency unit, and a transmission output step for outputting the signal amplified in the transmission RF step can be provided.
[0027]
Here, in the wireless method of the present invention, the transmission cable is an optical fiber cable, and in the indoor device side transmission step, the transmission side transmission step converts the electrical signal selected in the transmission signal selection step into an optical signal. The optical signal is transmitted to the outdoor device side via the optical fiber cable, and in the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electrical signal, and transmits it to the transmission side. In the outdoor device side receiving step, the receiving side transmission step converts the electrical signal selected in the received signal selection step into an optical signal and transmits it to the indoor device via the optical fiber cable. In the indoor device side reception step, the reception signal distribution step is transmitted in the reception side transmission step. The optical signals are those that can be converted into an electric signal distributed to the receiving side the indoor unit side.
[0028]
The wireless device of the present invention includes a transmission-side indoor device, a reception-side indoor device, an indoor device including the transmission-side indoor device and the reception-side indoor device, a transmission-side outdoor device, a reception-side outdoor device, and the transmission-side outdoor device. An outdoor device including the receiving-side outdoor device, a wireless device having a transmission cable connecting the indoor device and the outdoor device, wherein the transmitting-side indoor device modulates an input baseband signal And a transmission-side transmission unit that transmits the signal modulated by the modulation unit to the outdoor device via the transmission cable, and the transmission-side outdoor device transmits the signal transmitted from the transmission-side transmission unit. A transmission signal distribution unit that distributes to the transmission side outdoor device side, a transmission side demultiplexing unit that demultiplexes the signal distributed by the transmission signal distribution unit, and a frequency of the signal demultiplexed by the transmission side demultiplexing unit Transmission frequency converted to the carrier frequency band A conversion unit, a transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit, and a transmission output unit that outputs the signal amplified in the transmission high-frequency unit, the reception-side outdoor device receives A reception high-frequency unit that amplifies an RF signal; and a reception-side transmission unit that transmits a signal amplified in the reception high-frequency unit to the indoor device side via the transmission cable. A reception signal distribution unit that distributes the signal transmitted from the transmission unit to the reception side indoor device side, a reception side demultiplexing unit that demultiplexes the signal distributed by the reception signal distribution unit, and a reception side demultiplexing unit A reception frequency conversion unit that converts the demultiplexed signal into an IF signal, a demodulation unit that demodulates the signal converted by the reception frequency conversion unit, and a reception output unit that outputs a signal demodulated by the demodulation unit What we have A.
[0029]
Here, in the wireless device according to the present invention, the transmission cable is an optical fiber cable, and in the transmission-side indoor device, the transmission-side transmission unit converts the electrical signal selected by the transmission signal selection unit into an optical signal, and An optical signal is transmitted to the outdoor device side via the optical fiber cable, and the transmission signal distribution unit converts the optical signal transmitted from the transmission side transmission unit into an electrical signal in the transmission side outdoor device, and transmits the transmission side outdoor device. In the receiving-side outdoor device, the receiving-side transmission unit converts the electrical signal selected by the received signal selection unit into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable. In the indoor device, the reception signal distribution unit can convert the optical signal transmitted from the reception side transmission unit into an electric signal and distribute it to the reception side indoor device side. .
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0031]
Embodiment 1.
FIG. 1 is a block diagram showing a radio method for switching from active to standby for a radio apparatus according to Embodiment 1 of the present invention. The radio apparatus shown in FIG. 1 includes a modulation unit, a demodulation unit, a transmission frequency conversion unit, a reception frequency conversion unit, a transmission high-frequency unit, and a reception high-frequency unit, and is separated into two locations, indoors and outdoors, at different locations. The IDU and the ODU are installed, and the IDU and the ODU are connected by a transmission cable. In FIG. 1, reference numeral 1 is a BB signal input terminal for inputting a BB signal, 2 is a signal distributor HYB for distributing the input signal, 3a is a current modulation unit 1 for modulating the input signal, and 3b is a current modulation unit 1 is a spare spare modulation unit that is used by switching when a failure occurs, 4 is a selector switch SW that switches and outputs one of the input signals, and 6 is a signal distributor that distributes the input signal. HYB, 5 is a transmission cable for connecting the changeover switch SW4 and the signal distributor HYB6, 7a is a current transmission frequency conversion unit 1, 7b for converting the frequency of the input signal to a carrier frequency band, and is a current transmission frequency conversion. A spare transmission frequency converter for spare use that is switched over when the unit 1 (7a) fails or the like, 8a is a working transmission high-frequency unit 1 or 8b that amplifies the input signal, and a working transmission height A spare transmission high-frequency unit for switching used when the frequency unit 1 (8a) fails, 9 is a switch SW for switching and outputting one of the input signals, and 10 is an RF for outputting an RF signal An output terminal, 11 is an RF input terminal for inputting an RF signal, 12 is a signal distributor HYB that distributes the input signal, 13a is an active reception high-frequency unit 1 that amplifies the input signal, and 13b is an active reception high-frequency unit 1 (13a) is a backup standby reception high-frequency unit that is used by switching when a failure occurs, 14a is a current reception frequency conversion unit 1 that converts an input signal into an IF signal, and 14b is a current reception frequency conversion unit 1 ( 14a) is a backup standby reception frequency converter used for switching when a failure occurs, and 15 is a switch S for switching and outputting one of the input signals. , 17 is a signal distributor HYB that distributes the input signal, 16 is a transmission cable that connects between the changeover switch SW15 and the signal distributor HYB17, 18a is a current demodulator 1 and 18b that demodulates the input signal, and A spare spare demodulator that is used by switching when the demodulator 1 (18a) fails, 19 is a selector switch SW that switches and outputs one of the input signals, and BB that outputs a BB signal. Output terminal.
[0032]
Next, operations of the IDU and ODU on the transmission side will be described. As shown in FIG. 1, the BB signal input from the BB input terminal 1 is distributed into two by the signal distributor HYB2, and is modulated by the current modulator 1 (3a). The other signal distributed by the signal distributor HYB2 is modulated by the preliminary modulation unit 2 (3b). Either one of the active modulation unit 1 (3a) and the spare modulation unit 2 (3b) is selected as an IDU output signal by the changeover switch SW4. The selected IDU output signal is distributed into two by the signal distributor 6 on the ODU side connected to the transmission cable 5 and is carried by the working transmission frequency converter 1 (7a) and the spare transmission frequency converter 2 (7b). It is converted into a frequency band and amplified by the active transmission high-frequency unit 1 (8a) and the spare transmission high-frequency unit 2 (8b). Either one of the active transmission high-frequency unit 1 (8a) or the standby transmission high-frequency unit 2 (8b) is selected by the switch SW9 and is output to the RF output terminal 10. The change-over switch SW4 automatically switches instantaneously when the modulation unit 1 (3a) is out of order, and selects the preliminary modulation unit 2 (3b). The change-over switch SW9 automatically switches instantaneously when the transmission frequency conversion unit 1 (7a) or the transmission high frequency unit 1 (8a) is out of order, so that the preliminary transmission frequency conversion unit 2 (7b) or the preliminary transmission high frequency unit 2 ( 8b) is selected.
[0033]
The procedure for automatic switching on the transmission side will be described in detail. The failure detection signals output from the modulation unit 1 (3a) or the preliminary modulation unit 2 (3b) are collected by an alarm control processing unit (not shown) on the IDU side to send an alarm signal and generate a switching control signal. Then, the signal is transmitted to the changeover switch SW4 and the changeover control is performed. Similarly, the failure detection signal output from the transmission frequency conversion unit 1 (7a) or the standby transmission frequency conversion unit 2 (7b) and the transmission high frequency unit 1 (8a) or the standby transmission high frequency unit 2 (8b) are output. The failure detection signals to be collected are collected by an alarm control processing unit (not shown) on the ODU side so as to send out an alarm signal, and a switching control signal is generated and transmitted to the selector switch SW9 for switching control. For this reason, there is no need to exchange alarm signals and switching control signals between the IDU and ODU as described in the prior art, and independent alarm generation and switching control within the IDU, within the ODU. Independent alarm generation and switching can be controlled.
[0034]
Next, operations of the IDU and ODU on the receiving side will be described. The RF signal input from the RF input terminal 11 is divided into two by the signal distributor HYB12 and amplified by the current reception high-frequency unit 1 (13a), and then the IF band by the current reception frequency conversion unit 1 (14a). Converted to a signal. The other signal distributed by the signal distributor HYB12 is amplified by the preliminary reception high frequency unit 2 (13b), and then converted into an IF band signal by the preliminary reception frequency conversion unit 2 (14b). Either one of the reception frequency conversion unit 1 (14a) and the secondary reception frequency conversion unit 2 (14b) is selected as an ODU output signal by the changeover switch SW15. The selected ODU output signal is divided into two by the IDU-side signal distributor HYB17 connected to the transmission cable 16, and is transmitted to the demodulator 1 (18a) and the preliminary demodulator 2 (18b) to be a BB signal. Demodulated. The changeover switch 19 selects either the BB signal of the demodulator 1 (18a) or the preliminary demodulator 2 (18b), and the selected BB signal is output to the BB output terminal 20. The change-over switch SW15 automatically switches instantaneously when the reception high-frequency unit 1 (13a) or the reception frequency conversion unit 1 (14a) is out of order, so that the standby reception high-frequency unit 2 (13a) or the standby reception frequency conversion unit 2 ( 14a) is selected. The change-over switch SW19 automatically switches instantaneously when the demodulator 1 (18a) fails, and selects the spare demodulator 2 (18b).
[0035]
The procedure for automatic switching on the transmission side will be described in detail. Failure detection signal output from reception high frequency unit 1 (13a) or standby reception high frequency unit 2 (13b), and failure detection signal output from reception frequency conversion unit 1 (14a) or standby reception frequency conversion unit 2 (14b) Is sent to an alarm control processing unit (not shown) on the ODU side to send out an alarm signal, and a switching control signal is generated and transmitted to the changeover switch SW15 for switching control. Similarly, the failure detection signals output from the demodulator 1 (18a) or the preliminary demodulator 2 (18b) are collected by an alarm control processing unit (not shown) on the IDU side to send an alarm signal and switch. A control signal is generated and transmitted to the changeover switch SW19, and changeover control is performed. This eliminates the need for exchanging alarm signals and switching control signals between the ODU and the IDU as described in the prior art, and controls the generation and switching of independent alarms within the ODU. Independent alarm generation and switching can be controlled.
[0036]
As described above, according to the first embodiment, it is possible to eliminate the necessity of exchanging the alarm signal and the switching control signal between the IDU and the ODU, and to independently control the generation and switching of the alarm in each of the IDU and the ODU. In addition, by using two transmission cables between the IDU and the ODU, it is possible to simplify the installation work of the IDU, ODU, etc., reduce the overall cost of the equipment, and simplify the maintenance of the transmission cable.
[0037]
Embodiment 2.
FIG. 2 is a block diagram showing a wireless method for switching from the active device to the standby device in the second embodiment of the present invention. 2 having the same reference numerals as those in FIG. 1 have the same functions, and thus description thereof is omitted. In FIG. 2, reference numeral 60 denotes a changeover switch SW that transmits an IDU output signal transmitted by the transmission cable 5 to either the transmission frequency converter 1 (7a) or the spare transmission frequency converter 2 (7b). Reference numeral 170 denotes a change-over switch SW that transmits the ODU output signal transmitted by the transmission cable 5 to either the demodulator 1 (18a) or the preliminary demodulator 2 (18b).
[0038]
In the first embodiment described above, the signal distributor 6 is used in the ODU input unit on the transmission side. However, the changeover switch SW60 may be used instead of the signal distributor 6. As a result, when a failure occurs in the working transmission route such as the transmission frequency conversion unit 1 (7a), the transmission side ODU input unit can be switched to the standby transmission route such as the standby transmission frequency conversion unit 2 (7b). Furthermore, although the signal distributor 17 is used in the IDU input unit on the receiving side, a changeover switch SW170 may be used instead of the signal distributor 17. As a result, when a failure occurs in the demodulator 1 (18a), the reception-side IDU input unit can be switched to the spare demodulator 2 (18b).
[0039]
As described above, according to the second embodiment, by using the changeover switch SW60 in the ODU input unit on the transmission side, it is possible to deal with a failure in the ODU input unit on the transmission side, and the changeover switch in the IDU input unit on the reception side. By using the SW 170, it is possible to deal with a failure at the IDU input unit on the receiving side.
[0040]
Embodiment 3.
FIG. 3 is a block diagram showing a wireless method for switching from the active device to the standby device in the third embodiment of the present invention. 3 having the same reference numerals as those in FIG. 1 have the same functions, and thus description thereof is omitted. In FIG. 3, reference numeral 90 denotes a signal synthesizer for synthesizing signals from the transmission high-frequency unit 1 (8a) and the preliminary transmission high-frequency unit 2 (8b).
[0041]
In the first embodiment described above, the changeover switch SW9 is used in the transmission-side ODU output unit. However, the transmission frequency conversion unit 1 (7a) and the standby transmission frequency conversion unit 2 (7b) perform local oscillation synchronization and switch. A signal synthesizer 90 can be used instead of the switch SW9. By using the local signal whose frequency is synchronized between the transmission frequency converter 1 (7a) and the transmission frequency converter 2 (7b), the output signals of the respective transmission frequency converters can be synchronized. Therefore, the signals can be combined as a single wave even after being amplified in each transmission high-frequency unit.
[0042]
As described above, according to the third embodiment, the transmission frequency converter 1 (7a) and the standby transmission frequency converter 2 (7b) perform local oscillation synchronization, and the signal synthesized as a single wave by the synthesis unit 90 Obtainable.
[0043]
Embodiment 4.
FIG. 4 is a block diagram showing a radio method for switching from the active device to the standby device in the fourth embodiment of the present invention. 4 having the same reference numerals as those in FIG. 1 have the same functions, and thus description thereof is omitted. In FIG. 4, reference numeral 21 denotes an interface unit that transmits a transmission signal selected by the selector switch SW4 to an interface unit INT22 described later, and transmits a reception signal transmitted from the interface unit INT22 to a receiving-side IDU input unit. The interface unit that transmits the reception signal selected by the switch SW15 to the interface unit INT21 and transmits the transmission signal transmitted from the interface unit INT21 to the transmission side ODU input unit, and 23 is a division on the ODU side that demultiplexes the input signal. A wave unit 24 is a demultiplexing unit on the IDU side that demultiplexes the input signal. The signal distributor H17 has the same function as the signal distributor HYB17.
[0044]
In the first embodiment described above, the output signal of the modulation unit 1 (3a) or the preliminary modulation unit 2 (3b) is selected by the changeover switch SW4 at the transmission side IDU output unit, and then the transmission side ODU is transmitted via the transmission cable 5. It was connected to the signal distributor HYB6 at the input section. In the fourth embodiment, the interface unit INT21 synthesizes the transmission signal from the transmission side IDU and the reception signal from the reception side ODU output unit together, and the transmission signal is transmitted from the interface unit INT21 to the interface unit by one transmission cable 5. Transmit to INT22. In the transmission side ODU, the transmission signal transmitted by the interface unit INT22 is distributed, and after the distributed transmission signal is demultiplexed by the demultiplexing unit 23, the signal frequency divider HYB6 performs transmission frequency conversion unit 1 (7a) and preliminary transmission. Distribute to the frequency converter 2 (7b).
[0045]
On the other hand, in the reception side ODU, the changeover switch SW15 switches and selects the output of the reception high frequency unit 1 (13a) or the reception high frequency unit 2 (13b), and the interface unit INT22 receives the reception signal from the reception side ODU and the transmission side IDU output unit. And the transmission signal from the interface unit INT22 is transmitted from the interface unit INT22 to the interface unit INT21. The receiving side IDU distributes the received signal transmitted by the interface unit INT21, demultiplexes the distributed received signal by the demultiplexing unit 24, distributes it by the signal distributor H17, and receives the received frequency converter 1 (14a). And can be distributed to the spare reception frequency converter 2 (14b).
[0046]
As described above, according to the fourth embodiment, by providing an interface unit that synthesizes a transmission signal and a reception signal on each of the IDU side and the ODU side, one transmission cable is provided between the IDU and the ODU. Therefore, it is possible to further simplify the installation work of IDU, ODU, etc., reduce the cost of the entire equipment, and simplify the maintenance of the transmission cable.
[0047]
Embodiment 5.
FIG. 5 is a block diagram showing a radio method for switching from the active device to the standby device in the fifth embodiment of the present invention. 5 having the same reference numerals as those in FIG. 4 have the same functions, and thus description thereof is omitted. In the above-described fourth embodiment, in the receiving-side IDU, the signal demultiplexed by the demultiplexing unit 24 is distributed to the reception frequency converting unit 1 (14a) and the standby reception frequency converting unit 2 (14b) by the signal distributor H17. However, in the fifth embodiment, the reception frequency conversion unit 1 (14a) and the spare reception frequency conversion unit 2 (14b) can be moved from the reception-side IDU to the reception-side ODU. Therefore, the output of the reception high-frequency unit 1 (13a) is converted by the reception frequency conversion unit 1 (14a), and the output of the standby reception high-frequency unit 2 (13b) is converted by the standby reception frequency conversion unit 2 (14b). The output of one of the reception frequency converters can be selected by the switch SW15.
[0048]
As described above, according to the fifth embodiment, the frequency of the reception signal is received at the reception-side ODU by moving the reception frequency conversion unit 1 (14a) and the standby reception frequency conversion unit 2 (14b) from the reception-side IDU to the reception-side ODU. Conversion can be performed.
[0049]
Embodiment 6.
FIG. 6 is a block diagram showing a radio method for switching from the active device to the standby device in the sixth embodiment of the present invention. 6 having the same reference numerals as those in FIG. 4 have the same functions, description thereof will be omitted. In the fourth embodiment, the transmission signal is distributed to the transmission frequency converter 1 (7a) and the spare transmission frequency converter 2 (7b) by the signal distributor HYB6 in the transmission-side ODU. 6, the transmission frequency conversion unit 1 (7a) and the spare transmission frequency conversion unit 2 (7b) can be moved from the transmission side ODU to the transmission side IDU. Therefore, the output of the modulation unit 1 (3a) is converted by the transmission frequency conversion unit 1 (7a), the output of the backup modulation unit 2 (3b) is converted by the backup transmission frequency conversion unit 2 (7b), and the changeover switch SW4. Thus, the output of any one of the transmission frequency conversion units can be selected.
[0050]
As described above, according to the sixth embodiment, the frequency of the transmission signal is transmitted at the transmission side IDU by moving the transmission frequency conversion unit 1 (7a) and the standby transmission frequency conversion unit 2 (7b) from the transmission side ODU to the transmission side IDU. Conversion can be performed.
[0051]
Embodiment 7.
FIG. 7 is a block diagram showing a radio method for switching from the active device to the standby device in Embodiment 7 of the present invention. 7 having the same reference numerals as those in FIG. 4 have the same functions, and thus description thereof is omitted. In FIG. 7, reference numeral 60 denotes a change-over switch SW that transmits the transmission signal demultiplexed by the demultiplexing unit 23 to either the transmission frequency conversion unit 1 (7 a) or the spare transmission frequency conversion unit 2 (7 b). , 170 is a change-over switch SW that transmits the signal demultiplexed by the demultiplexing unit 24 to either the reception frequency conversion unit 1 (14a) or the preliminary reception frequency conversion unit 2 (14b).
[0052]
In Embodiment 4 described above, the signal distributor HYB6 is used in the transmission-side ODU input unit. However, the changeover switch SW60 may be used instead of the signal distributor HYB6. As a result, when a failure occurs in the working transmission route such as the transmission frequency conversion unit 1 (7a), the transmission side ODU input unit can be switched to the standby transmission route such as the standby transmission frequency conversion unit 2 (7b). Furthermore, although the signal distributor H17 is used in the IDU input section on the receiving side, the changeover switch SW170 may be used instead of the signal distributor H17. As a result, when a failure occurs in the working reception route such as the demodulation unit 1 (18a), the reception side IDU input unit can be switched to the spare reception route such as the spare demodulation unit 2 (18b).
[0053]
As described above, according to the seventh embodiment, by using the changeover switch SW60 in the transmission-side ODU input unit, it is possible to cope with a failure in the transmission-side ODU input unit, and in the reception-side IDU input unit, the changeover switch By using the SW 170, it is possible to deal with a failure at the IDU input unit on the receiving side.
[0054]
Embodiment 8.
FIG. 8 is a block diagram showing a radio method for switching from the active device to the standby device in the eighth embodiment of the present invention. 8 having the same reference numerals as those in FIG. 5 have the same functions, and thus description thereof is omitted. In FIG. 8, reference numeral 60 denotes a change-over switch SW that transmits the transmission signal demultiplexed by the demultiplexing unit 23 to either the transmission frequency conversion unit 1 (7 a) or the standby transmission frequency conversion unit 2 (7 b). , 170 is a change-over switch SW that transmits the signal demultiplexed by the demultiplexing unit 24 to either the reception frequency conversion unit 1 (14a) or the preliminary reception frequency conversion unit 2 (14b).
[0055]
In the fifth embodiment described above, the signal distributor HYB6 is used in the transmission-side ODU input unit. However, the changeover switch SW60 may be used instead of the signal distributor HYB6. As a result, when a failure occurs in the working transmission route such as the transmission frequency conversion unit 1 (7a), the transmission side ODU input unit can be switched to the standby transmission route such as the standby transmission frequency conversion unit 2 (7b). Furthermore, although the signal distributor H17 is used in the IDU input section on the receiving side, the changeover switch SW170 may be used instead of the signal distributor H17. As a result, when a failure occurs in the working reception route such as the demodulation unit 1 (18a), the reception side IDU input unit can be switched to the spare reception route such as the spare demodulation unit 2 (18b).
[0056]
As described above, according to the eighth embodiment, by using the changeover switch SW60 in the ODU input unit on the transmission side, it is possible to cope with a failure in the ODU input unit on the transmission side, and the changeover switch in the IDU input unit on the reception side. By using the SW 170, it is possible to deal with a failure at the IDU input unit on the receiving side.
[0057]
Embodiment 9.
FIG. 9 is a block diagram showing a wireless method for switching from the active device to the standby device in the ninth embodiment of the present invention. 9 having the same reference numerals as those in FIG. 6 have the same functions, and thus description thereof is omitted. In FIG. 9, reference numeral 60 denotes changeover switches SW and 170 for transmitting the transmission signal demultiplexed by the demultiplexing unit 23 to either the transmission high-frequency unit 1 (8a) or the preliminary transmission high-frequency unit 2 (8b). Is a change-over switch SW that transmits the signal demultiplexed by the demultiplexing unit 24 to either the reception frequency conversion unit 1 (14a) or the preliminary reception frequency conversion unit 2 (14b).
[0058]
In the above-described sixth embodiment, the signal distributor HYB6 is used in the transmission-side ODU input unit. However, the changeover switch SW60 may be used instead of the signal distributor HYB6. As a result, when a failure occurs in the transmission high-frequency unit 1 (8a), the transmission-side ODU input unit can be switched to the standby high-frequency unit 2 (8b). Furthermore, although the signal distributor H17 is used in the IDU input section on the receiving side, the changeover switch SW170 may be used instead of the signal distributor H17. As a result, when a failure occurs in the working reception route such as the demodulation unit 1 (18a), the reception side IDU input unit can be switched to the spare reception route such as the spare demodulation unit 2 (18b).
[0059]
As described above, according to the ninth embodiment, by using the changeover switch SW60 in the ODU input unit on the transmission side, it is possible to deal with a failure in the ODU input unit on the transmission side, and the changeover switch in the IDU input unit on the reception side. By using the SW 170, it is possible to deal with a failure at the IDU input unit on the receiving side.
[0060]
Embodiment 10.
FIG. 10 is a block diagram showing a radio method for switching from the active device to the standby device in the tenth embodiment of the present invention. 10 having the same reference numerals as those in FIG. 4 have the same functions, and therefore description thereof is omitted. In FIG. 10, reference numeral 50 denotes an optical fiber cable that transmits an optical signal.
[0061]
In Embodiment 4 described above, an electrical signal is transmitted between the IDU side and the ODU side using the transmission cable 5, but in Embodiment 10, an optical signal is transmitted instead of the transmission cable 5. An optical fiber cable can be used. In the case of transmission, the interface unit INT21 converts the transmission signal from the IDU side from an electric signal to an optical signal, and the converted optical signal is sent to the interface unit INT22 on the ODU side by the optical fiber cable 50 shared for transmission and reception. To transmit. The interface unit INT22 converts the optical signal transmitted from the IDU side from an optical signal to an electrical signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electric signal to an optical signal, and the converted optical signal is transmitted to the IDU side by the optical fiber cable 50 for both transmission and reception. The data is transmitted to the interface unit INT21. The interface unit INT21 converts an optical signal transmitted from the ODU side from an optical signal to an electrical signal.
[0062]
As described above, according to the tenth embodiment, since an optical fiber cable that transmits an optical signal can be used instead of a transmission cable that transmits an electric signal, cable installation work is facilitated and cable maintenance is facilitated. can do.
[0063]
Embodiment 11.
FIG. 11 is a block diagram showing a radio method for switching from the active device to the standby device in the eleventh embodiment of the present invention. 11 having the same reference numerals as those in FIG. 5 have the same functions, and thus description thereof is omitted. In FIG. 11, reference numeral 50 denotes an optical fiber cable for transmitting an optical signal.
[0064]
In Embodiment 5 described above, an electrical signal is transmitted between the IDU side and the ODU side using the transmission cable 5, but in Embodiment 11, an optical signal is transmitted instead of the transmission cable 5. An optical fiber cable can be used. In the case of transmission, the interface unit INT21 converts the transmission signal from the IDU side from an electric signal to an optical signal, and the converted optical signal is sent to the interface unit INT22 on the ODU side by the optical fiber cable 50 shared for transmission and reception. To transmit. The interface unit INT22 converts the optical signal transmitted from the IDU side from an optical signal to an electrical signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electric signal to an optical signal, and the converted optical signal is transmitted to the IDU side by the optical fiber cable 50 for both transmission and reception. The data is transmitted to the interface unit INT21. The interface unit INT21 converts an optical signal transmitted from the ODU side from an optical signal to an electrical signal.
[0065]
As described above, according to the eleventh embodiment, since an optical fiber cable that transmits an optical signal can be used instead of a transmission cable that transmits an electric signal, cable installation work is facilitated and cable maintenance is facilitated. can do.
[0066]
Embodiment 12.
FIG. 12 is a block diagram showing a radio method for switching from the active device to the standby device in the twelfth embodiment of the present invention. 12 having the same reference numerals as those in FIG. 6 have the same functions, and thus description thereof is omitted. In FIG. 12, reference numeral 50 denotes an optical fiber cable for transmitting an optical signal.
[0067]
In Embodiment 6 described above, an electrical signal is transmitted between the IDU side and the ODU side using the transmission cable 5, but in Embodiment 12, an optical signal is transmitted instead of the transmission cable 5. An optical fiber cable can be used. In the case of transmission, the interface unit INT21 converts the transmission signal from the IDU side from an electric signal to an optical signal, and the converted optical signal is sent to the interface unit INT22 on the ODU side by the optical fiber cable 50 shared for transmission and reception. To transmit. The interface unit INT22 converts the optical signal transmitted from the IDU side from an optical signal to an electrical signal. Similarly, when receiving, the interface unit INT22 converts the transmission signal from the ODU side from an electric signal to an optical signal, and the converted optical signal is transmitted to the IDU side by the optical fiber cable 50 for both transmission and reception. The data is transmitted to the interface unit INT21. The interface unit INT21 converts an optical signal transmitted from the ODU side from an optical signal to an electrical signal.
[0068]
As described above, according to the twelfth embodiment, since an optical fiber cable that transmits an optical signal can be used instead of a transmission cable that transmits an electric signal, cable installation work is facilitated and cable maintenance is facilitated. can do.
[0069]
Embodiment 13.
FIG. 13 shows a radio apparatus according to the thirteenth embodiment of the present invention. 13 having the same reference numerals as those in FIG. 4 have the same functions, and thus description thereof is omitted. The thirteenth embodiment has a configuration including only the active system in the fourth embodiment described above. Specifically, in FIG. 4, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a changeover switch SW4, a signal distributor HYB6, a transmission conversion unit 2 (7b), a transmission high frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception conversion unit 2 (14b), the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0070]
As described above, according to the thirteenth embodiment, by using a wireless device consisting only of the active system in the fourth embodiment, further simplification of installation work for IDU, ODU, etc., and cost reduction of the entire equipment can be realized. Can do.
[0071]
Embodiment 14.
FIG. 14 shows a radio apparatus according to the fourteenth embodiment of the present invention. 14 having the same reference numerals as those in FIG. 5 have the same functions, and thus description thereof is omitted. The fourteenth embodiment has a configuration including only the active system in the fifth embodiment described above. Specifically, in FIG. 5, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a changeover switch SW4, a signal distributor HYB6, a transmission conversion unit 2 (7b), a transmission high-frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the reception conversion unit 2 (14b), the changeover switch SW15, the signal distributor HYB17, the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0072]
As described above, according to the fourteenth embodiment, by using a wireless device consisting only of the active system in the fifth embodiment, further simplification of installation work for IDU, ODU, etc., and cost reduction of the entire equipment can be realized. Can do.
[0073]
Embodiment 15.
FIG. 15 shows a radio apparatus according to the fifteenth embodiment of the present invention. 15 having the same reference numerals as those in FIG. 6 have the same functions, and thus description thereof is omitted. The fifteenth embodiment has a configuration including only the active system in the sixth embodiment described above. Specifically, in FIG. 6, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a transmission conversion unit 2 (7b), a change-over switch SW4, a signal distributor HYB6, a transmission high-frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception conversion unit 2 (14b), the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0074]
As described above, according to the fifteenth embodiment, by using the wireless device consisting only of the active system in the sixth embodiment, further simplification of installation work such as IDU and ODU, and cost reduction of the entire equipment can be realized. Can do.
[0075]
Embodiment 16.
FIG. 16 shows a radio apparatus according to the sixteenth embodiment of the present invention. 16 having the same reference numerals as those in FIG. 10 have the same functions, and thus description thereof is omitted. The sixteenth embodiment has a configuration including only the active system in the tenth embodiment described above. Specifically, in FIG. 10, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a changeover switch SW4, a signal distributor HYB6, a transmission conversion unit 2 (7b), a transmission high frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception conversion unit 2 (14b), the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0076]
As described above, according to the sixteenth embodiment, by using the wireless device consisting only of the active system in the tenth embodiment, further simplification of installation work for IDU, ODU, etc., and cost reduction of the entire equipment can be realized. Can do.
[0077]
Embodiment 17.
FIG. 17 shows a radio apparatus according to the seventeenth embodiment of the present invention. 17 having the same reference numerals as those in FIG. 11 have the same functions, and thus description thereof is omitted. The seventeenth embodiment has a configuration including only the active system in the eleventh embodiment described above. Specifically, in FIG. 11, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a changeover switch SW4, a signal distributor HYB6, a transmission conversion unit 2 (7b), a transmission high frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the reception conversion unit 2 (14b), the changeover switch SW15, the signal distributor HYB17, the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0078]
As described above, according to the seventeenth embodiment, by using the wireless device consisting only of the active system in the eleventh embodiment, further simplification of installation work of IDU, ODU, etc., and reduction of the cost of the entire equipment can be realized. Can do.
[0079]
Embodiment 18.
FIG. 18 shows a radio apparatus according to the eighteenth embodiment of the present invention. 18 having the same reference numerals as those in FIG. 12 have the same functions, description thereof is omitted. The eighteenth embodiment has a configuration including only the active system in the twelfth embodiment described above. In detail, in FIG. 12, the transmission side includes a signal distributor HYB2, a modulation unit 2 (3b), a transmission conversion unit 2 (7b), a changeover switch SW4, a signal distributor HYB6, a transmission high frequency unit 2 (8b), and a changeover switch. SW9 disappears from the component. On the receiving side, the signal distributor HYB12, the reception high-frequency unit 2 (13b), the changeover switch SW15, the signal distributor HYB17, the reception conversion unit 2 (14b), the demodulation unit 2 (18b), and the changeover switch SW19 are eliminated from the components.
[0080]
As described above, according to the eighteenth embodiment, by using the wireless device consisting only of the active system in the twelfth embodiment, further simplification of the installation work of IDU, ODU, etc., and reduction of the cost of the entire equipment can be realized. Can do.
[0081]
【The invention's effect】
As described above, according to the wireless method and the wireless device of the present invention, the number of transmission cables between the IDU and the ODU is one or two, thereby simplifying the installation work of the IDU, ODU, etc. It is possible to provide a wireless method and a wireless device capable of reducing the overall cost and simplifying the maintenance of the transmission cable.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a radio method for switching a radio apparatus from active mode to backup mode in Embodiment 1 of the present invention.
FIG. 2 is a block diagram illustrating a radio method for switching from active to standby for a radio apparatus according to Embodiment 2 of the present invention.
FIG. 3 is a block diagram showing a radio method for switching from active to standby for a radio apparatus in Embodiment 3 of the present invention.
FIG. 4 is a block diagram showing a radio method for switching from active to standby for a radio apparatus in Embodiment 4 of the present invention.
FIG. 5 is a block diagram illustrating a radio method for switching from active to standby for a radio apparatus according to Embodiment 5 of the present invention;
FIG. 6 is a block diagram illustrating a wireless method for switching from active to standby for a wireless device in Embodiment 6 of the present invention.
FIG. 7 is a block diagram illustrating a wireless method for switching from active to standby for a wireless device in Embodiment 7 of the present invention.
FIG. 8 is a block diagram showing a radio method for switching from active to standby for a radio apparatus in an eighth embodiment of the present invention.
FIG. 9 is a block diagram showing a radio method for switching from active to standby for a radio apparatus in Embodiment 9 of the present invention.
FIG. 10 is a block diagram showing a radio method for switching from the active device to the standby device in the tenth embodiment of the present invention.
FIG. 11 is a block diagram showing a radio method for switching from active to standby for a radio apparatus in Embodiment 11 of the present invention;
FIG. 12 is a block diagram illustrating a radio method for switching a radio apparatus from active mode to backup mode in Embodiment 12 of the present invention.
FIG. 13 is a block diagram showing a radio apparatus according to a thirteenth embodiment of the present invention.
FIG. 14 is a block diagram showing a radio apparatus according to a fourteenth embodiment of the present invention.
FIG. 15 is a block diagram showing a radio apparatus according to a fifteenth embodiment of the present invention.
FIG. 16 is a block diagram showing a radio apparatus according to a sixteenth embodiment of the present invention.
FIG. 17 is a block diagram showing a radio apparatus according to a seventeenth embodiment of the present invention.
FIG. 18 is a block diagram showing a radio apparatus according to an eighteenth embodiment of the present invention.
FIG. 19 is a block diagram illustrating a wireless method for switching from active to standby in a conventional wireless device.
FIG. 20 is a block diagram showing a wireless method only for an active system in a conventional wireless device.
[Explanation of symbols]
1 BB input terminal 2, 6, 12 Signal distributor HYB, 3a Modulation unit, 3b Preliminary modulation unit, 4, 9, 15, 19, 170 Changeover switch, 5, 5a Transmission cable, 5b Preliminary transmission cable, 7a Transmission frequency Conversion unit, 7b Preliminary transmission frequency conversion unit, 8a Transmission high frequency unit, 8b Preliminary transmission high frequency unit, 10 RF output terminal, 11 RF input terminal, 13a Reception high frequency unit, 13b Preliminary reception high frequency unit, 14a Reception frequency conversion unit, 14b Reception frequency conversion unit, 16, 16a transmission cable, 16b backup transmission cable, 17 signal distributor H, 18a demodulation unit, 18b backup demodulation unit, 20 BB output terminal, 21, 22 interface unit, 23, 24 duplexer, 90 Signal synthesis unit.

Claims

A modulation unit having a current modulation unit for modulating an input signal and a backup modulation unit for backup of the current modulation unit, a current transmission frequency conversion unit for converting the frequency of the input signal to a carrier frequency band, and the current transmission frequency A transmission frequency conversion unit having a preliminary transmission frequency conversion unit as a spare for the conversion unit, a current transmission high frequency unit for amplifying the input signal, and a transmission high frequency unit as a spare for the current transmission high frequency unit A reception high-frequency unit having an active reception high-frequency unit for amplifying the input signal and a standby reception high-frequency unit for backup of the active reception high-frequency unit; an active reception frequency conversion unit for converting the input signal into an IF signal; A reception frequency conversion unit having a backup reception frequency conversion unit as a backup of the reception frequency conversion unit, a current demodulation unit that demodulates an input signal, and a backup as a backup of the current demodulation unit A wireless method of switching between the working and the spare in a radio apparatus having a demodulator and a contrast portion,
The sender is
A baseband signal distribution step of distributing the input baseband signal to the active modulation unit or the backup modulation unit;
A current modulation step of modulating the signal distributed in the baseband signal distribution step by a current modulation unit;
A preliminary modulation step of modulating the signal distributed in the baseband signal distribution step by a preliminary modulation unit;
A transmission signal selection step of selecting one of the signals modulated in the modulation step and the preliminary modulation step;
A first connection step of connecting the signal selected in the transmission signal selection step to the transmission conversion unit via a transmission cable;
A working transmission frequency converting step of converting the signal connected in the first connecting step by a working transmission frequency converting unit;
A working transmission RF step for amplifying the signal converted in the working transmission frequency conversion step by a working transmission high-frequency unit;
A preliminary transmission frequency converting step of converting the signal connected in the first connection step by a preliminary transmission frequency converting unit;
A preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high-frequency unit;
A transmission output step for outputting a signal based on the signal amplified in the active transmission RF step and the preliminary transmission RF step;
The transmission signal selection step switches the active modulation unit to a standby modulation unit when the active modulation unit fails, and the transmission output step converts the active transmission frequency conversion when the active transmission frequency conversion unit or the active transmission high frequency unit fails Part and the active transmission high-frequency unit are switched to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit,
The receiving side
A reception signal distribution step of distributing the received RF signal to the active reception high-frequency unit or the standby reception high-frequency unit;
An active reception RF step for amplifying the signal distributed in the reception signal distribution step by an active reception high-frequency unit;
A working reception frequency converting step of converting the signal amplified in the receiving RF step into an IF signal by a working receiving frequency converter;
Preliminary reception RF step for amplifying the signal distributed in the reception signal distribution step by a preliminary reception high-frequency unit;
A preliminary reception frequency conversion step of converting the signal amplified in the preliminary reception RF step into an IF signal by a preliminary reception frequency converter;
A reception signal selection step of selecting any one of the signals converted in the active reception frequency conversion step and the preliminary reception frequency conversion step;
A second connection step of connecting the signal selected in the reception signal selection step to a demodulation unit via a reception cable;
A working demodulation step of demodulating the signal connected in the second connection step by a working demodulation unit;
A preliminary demodulation step of demodulating the signal connected in the second connection step by a preliminary demodulation unit;
A reception output selection step of selecting and outputting any one of the signals demodulated in the active demodulation step and the preliminary demodulation step;
In the reception signal selection step, when the active reception high frequency unit or the active reception frequency conversion unit fails, the active reception high frequency unit and the active reception frequency conversion unit are switched to the standby reception high frequency unit and the standby reception frequency conversion unit, and the reception output The selecting method includes a step of switching the active demodulator to a standby demodulator when the active demodulator fails.

The first connection step distributes the signal selected in the transmission signal selection step to an active transmission frequency converter and a standby transmission frequency converter, and the transmission output step includes the active transmission RF step and the standby transmission RF step. And selecting and outputting one of the amplified signals, and the second connection step distributes the signal selected in the reception signal selection step to the demodulation unit and the preliminary demodulation unit. The wireless method according to claim 1.

In the first connection step, the signal selected in the transmission signal selection step is switched and connected to either the active transmission frequency conversion unit or the backup transmission frequency conversion unit, and the transmission output step includes the transmission RF step and the In the preliminary transmission RF step, one of the signals amplified in the preliminary transmission RF step is selected and output, and the second connection step selects the signal selected in the reception signal selection step from the active demodulation unit or the preliminary demodulation unit. 2. The wireless method according to claim 1, wherein the connection is made by switching to any one of them.

The first connection step distributes the signal selected in the transmission signal selection step to an active transmission frequency converter and a standby transmission frequency converter, and the transmission output step includes the active transmission RF step and the standby transmission RF step. The signal amplified in step 1 is combined and output, and the second connection step distributes the signal selected in the reception signal selection step to a demodulation unit and a preliminary demodulation unit. Wireless method.

A modulation unit having a current modulation unit for modulating an input signal and a backup modulation unit for backup of the current modulation unit, a current transmission frequency conversion unit for converting the frequency of the input signal to a carrier frequency band, and the current transmission frequency A transmission frequency conversion unit having a preliminary transmission frequency conversion unit as a spare for the conversion unit, a current transmission high frequency unit for amplifying the input signal, and a transmission high frequency unit as a spare for the current transmission high frequency unit A reception high-frequency unit having an active reception high-frequency unit for amplifying the input signal and a standby reception high-frequency unit for backup of the active reception high-frequency unit; an active reception frequency conversion unit for converting the input signal into an IF signal; A reception frequency conversion unit having a backup reception frequency conversion unit as a backup of the reception frequency conversion unit, a current demodulation unit that demodulates an input signal, and a backup as a backup of the current demodulation unit An active device and a standby device in a wireless device including a demodulating unit having a modulating unit, an indoor device having the modulating unit and the demodulating unit, and an outdoor device having the transmitting high-frequency unit and the receiving high-frequency unit. A wireless method for switching between
The indoor device side transmission step is
A baseband signal distribution step of distributing the input baseband signal to the active modulation unit and the backup modulation unit;
A current modulation step of modulating the signal distributed in the baseband signal distribution step by a current modulation unit;
A preliminary modulation step of modulating the signal distributed in the baseband signal distribution step by a preliminary modulation unit;
Selecting one of the signals modulated in the current modulation step and the preliminary modulation step, and when the current modulation unit fails, a transmission signal selection step for switching the current modulation unit to the preliminary modulation unit;
A transmission side transmission step of transmitting the signal selected in the transmission signal selection step to the outdoor device side through a transmission cable;
The outdoor device side transmission step is
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission-side demultiplexing signal distribution step of distributing the signal demultiplexed in the transmission-side demultiplexing step to the active transmission frequency conversion unit and the standby transmission frequency conversion unit;
An active transmission conversion step of converting the signal distributed in the transmission side demultiplexing signal distribution step by an active transmission frequency converter;
A working transmission RF step for amplifying the signal converted in the working transmission conversion step by a working transmission high-frequency unit;
A preliminary transmission conversion step of converting the signal distributed in the demultiplexing signal distribution step by a preliminary transmission frequency conversion unit;
A preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high-frequency unit;
When one of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission frequency A transmission output step for switching the conversion unit and the active transmission high-frequency unit to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit,
The outdoor device side reception step is
A reception signal distribution step of distributing the received RF signal to the active reception high-frequency unit and the standby reception high-frequency unit;
An active reception RF step for amplifying the signal distributed in the reception signal distribution step by an active reception high-frequency unit;
Preliminary reception RF step for amplifying the signal distributed in the reception signal distribution step by a preliminary reception high-frequency unit;
When any one of the signals amplified in the active reception frequency converter and the standby reception frequency converter is selected and the active reception high frequency unit fails, the active reception high frequency unit is changed to the standby reception high frequency unit. A received signal selection step to be switched;
A reception side transmission step of transmitting the signal selected in the reception signal selection step to the indoor device side via the transmission cable;
With
The indoor device side reception step is
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A receiving-side demultiplexing signal distributing step for distributing the signal demultiplexed in the receiving-side demultiplexing step to an active receiving frequency converting unit and a standby receiving frequency converting unit;
A working reception frequency converting step of converting the signal distributed in the receiving side demultiplexing signal distributing step into an IF signal by a working receiving frequency converter;
A working demodulation step of demodulating the signal converted in the working reception frequency converting step by a working demodulator;
A preliminary reception frequency conversion step of converting the signal distributed in the reception side demultiplexing signal distribution step into an IF signal by a preliminary reception frequency conversion unit;
A preliminary demodulation step of demodulating the signal converted in the preliminary reception frequency conversion step by a preliminary demodulation unit;
When one of the signals demodulated in the active demodulation step and the preliminary demodulation step is selected and output, and the active reception frequency converter or the active demodulator fails, the active reception frequency converter and A radio method comprising: a reception output selection step of switching the active demodulation unit to a standby reception frequency converting unit and a standby demodulation unit.

The outdoor device side receiving step includes:
After the working reception RF step, a working reception frequency conversion step of converting the signal amplified by the working reception RF step into an IF signal by a working reception frequency conversion unit;
A preliminary reception frequency converting step of converting the signal amplified in the preliminary reception RF step into an IF signal by the preliminary reception frequency converter after the preliminary reception RF step;
The reception signal selection step selects one of the signals converted in the active reception frequency conversion step and the backup reception frequency conversion step,
The indoor device side receiving step includes:
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A receiving-side demultiplexing signal distributing step for distributing the signal demultiplexed in the receiving-side demultiplexing step to an active demodulator and a standby demodulator;
A working demodulation step of demodulating the signal distributed in the receiving side demultiplexing signal distributing step by a working demodulation unit;
A preliminary demodulation step of demodulating the signal distributed in the receiving side demultiplexing signal distribution step by a preliminary demodulation unit;
Receive output selection that selects and outputs one of the signals demodulated in the active demodulation step and the preliminary demodulation step, and switches the active demodulation unit to the standby demodulation unit when the active demodulation unit fails The wireless method according to claim 5, further comprising: a step.

The indoor device side transmission step includes:
A working transmission frequency converting step for converting the signal modulated in the working modulation step after the working modulation step;
A preliminary transmission frequency converting step for converting the signal modulated in the preliminary modulation step after the preliminary modulation step;
The transmission signal selection step selects and outputs one of the signals converted in the working transmission frequency conversion step and the backup transmission frequency conversion step, and the working modulation unit or the working transmission frequency conversion unit fails. In this case, the working modulation unit and the working transmission frequency conversion unit are switched to the modulation unit and the standby transmission frequency conversion unit,
The outdoor device side transmission step includes:
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission side demultiplexing signal distribution step for distributing the signal demultiplexed in the transmission side demultiplexing step to the active transmission high frequency unit and the standby transmission high frequency unit;
An active transmission RF step for amplifying the signal distributed in the transmission side demultiplexing signal distribution step by an active transmission high-frequency unit;
A preliminary transmission RF step for amplifying the signal distributed in the demultiplexing signal distribution step by a preliminary transmission high-frequency unit;
When one of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the active transmission high-frequency unit fails, the active transmission high-frequency unit is replaced with the preliminary transmission high-frequency unit. The wireless method according to claim 5, further comprising a transmission output step of switching to

A modulation unit having a current modulation unit for modulating an input signal and a backup modulation unit for backup of the current modulation unit, a current transmission frequency conversion unit for converting the frequency of the input signal to a carrier frequency band, and the current transmission frequency A transmission frequency conversion unit having a preliminary transmission frequency conversion unit as a spare for the conversion unit, a current transmission high frequency unit for amplifying the input signal, and a transmission high frequency unit as a spare for the current transmission high frequency unit A reception high-frequency unit having an active reception high-frequency unit for amplifying the input signal and a standby reception high-frequency unit for backup of the active reception high-frequency unit; an active reception frequency conversion unit for converting the input signal into an IF signal; A reception frequency conversion unit having a backup reception frequency conversion unit as a backup of the reception frequency conversion unit, a current demodulation unit that demodulates an input signal, and a backup as a backup of the current demodulation unit An active device and a standby device in a wireless device including a demodulating unit having a modulating unit, an indoor device having the modulating unit and the demodulating unit, and an outdoor device having the transmitting high-frequency unit and the receiving high-frequency unit. A wireless method for switching between
The indoor device side transmission step is
A baseband signal distribution step of distributing the input baseband signal to the active modulation unit and the backup modulation unit;
A current modulation step of modulating the signal distributed in the baseband signal distribution step by a current modulation unit;
A preliminary modulation step of modulating the signal distributed in the baseband signal distribution step by a preliminary modulation unit;
Selecting one of the signals modulated in the current modulation step and the preliminary modulation step, and when the current modulation unit fails, a transmission signal selection step for switching the current modulation unit to the preliminary modulation unit;
A transmission side transmission step of transmitting the signal selected in the transmission signal selection step to the outdoor device side through a transmission cable;
The outdoor device side transmission step is
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission side demultiplexing signal switching step for switching the signal demultiplexed in the transmission side demultiplexing step to either the active transmission frequency converting unit or the standby transmission frequency converting unit;
A working transmission conversion step of converting the signal switched in the transmission side demultiplexing signal switching step by a working transmission frequency converter;
A working transmission RF step for amplifying the signal converted in the working transmission conversion step by a working transmission high-frequency unit;
Preliminary transmission conversion step of converting the signal switched in the transmission side demultiplexing signal switching step by a preliminary transmission frequency conversion unit;
A preliminary transmission RF step of amplifying the signal converted in the preliminary transmission conversion step by a preliminary transmission high-frequency unit;
When one of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the active transmission frequency conversion unit or the active transmission high frequency unit fails, the active transmission frequency A transmission output step for switching the conversion unit and the active transmission high-frequency unit to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit,
The outdoor device side reception step is
A reception signal distribution step of distributing the received RF signal to the active reception high-frequency unit and the standby reception high-frequency unit;
An active reception RF step for amplifying the signal distributed in the reception signal distribution step by an active reception high-frequency unit;
Preliminary reception RF step for amplifying the signal distributed in the reception signal distribution step by a preliminary reception high-frequency unit;
When any one of the signals amplified in the active reception frequency converter and the standby reception frequency converter is selected and the active reception high frequency unit fails, the active reception high frequency unit is changed to the standby reception high frequency unit. A received signal selection step to be switched;
A reception side transmission step of transmitting the signal selected in the reception signal selection step to the indoor device side via the transmission cable;
With
The indoor device side reception step is
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A receiving-side demultiplexing signal switching step for switching the signal demultiplexed in the receiving-side demultiplexing step to either the active reception frequency converting unit or the standby receiving frequency converting unit;
A working reception frequency converting step of converting the signal switched in the receiving side demultiplexing signal switching step into an IF signal by a working receiving frequency converter;
A working demodulation step of demodulating the signal converted in the working reception frequency converting step by a working demodulator;
A preliminary reception frequency conversion step of converting the signal switched in the reception side demultiplexing signal switching step into an IF signal in the preliminary reception frequency conversion unit;
A preliminary demodulation step of demodulating the signal converted in the preliminary reception frequency conversion step by a preliminary demodulation unit;
When one of the signals demodulated in the active demodulation step and the preliminary demodulation step is selected and output, and the active reception frequency converter or the active demodulator fails, the active reception frequency converter and A radio method comprising: a reception output selection step of switching the active demodulation unit to a standby reception frequency converting unit and a standby demodulation unit.

The outdoor device side receiving step includes:
After the working reception RF step, a working reception frequency conversion step of converting the signal amplified by the working reception RF step into an IF signal by a working reception frequency conversion unit;
A preliminary reception frequency converting step of converting the signal amplified in the preliminary reception RF step into an IF signal by the preliminary reception frequency converter after the preliminary reception RF step;
The reception signal selection step selects one of the signals converted in the active reception frequency conversion step and the backup reception frequency conversion step,
The indoor device side receiving step includes:
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A receiving-side demultiplexing signal switching step for switching the signal demultiplexed in the receiving-side demultiplexing step to an active demodulation unit or a standby demodulation unit;
A working demodulation step of demodulating the signal switched in the receiving side demultiplexing signal switching step by a working demodulation unit;
A preliminary demodulation step of demodulating the signal switched in the reception side demultiplexing signal switching step by a preliminary demodulation unit;
Receive output selection that selects and outputs one of the signals demodulated in the active demodulation step and the preliminary demodulation step, and switches the active demodulation unit to the standby demodulation unit when the active demodulation unit fails The wireless method according to claim 8, further comprising: a step.

The indoor device side transmission step includes:
A working transmission frequency converting step for converting the signal modulated in the working modulation step after the working modulation step;
A preliminary transmission frequency converting step for converting the signal modulated in the preliminary modulation step after the preliminary modulation step;
The transmission signal selection step selects and outputs one of the signals converted in the working transmission frequency conversion step and the backup transmission frequency conversion step, and the working modulation unit or the working transmission frequency conversion unit fails. In this case, the working modulation unit and the working transmission frequency conversion unit are switched to the modulation unit and the standby transmission frequency conversion unit,
The outdoor device side transmission step includes:
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission side demultiplexing signal switching step for switching the signal demultiplexed in the transmission side demultiplexing step to either the active transmission high frequency unit or the standby transmission high frequency unit;
A working transmission RF step for amplifying the signal switched in the transmission side demultiplexing signal switching step by a working transmission high-frequency unit;
Preliminary transmission RF step for amplifying the signal switched in the transmission side demultiplexing signal switching step by a preliminary transmission high-frequency unit;
When one of the signals amplified in the active transmission RF step and the preliminary transmission RF step is selected and output, and the active transmission high-frequency unit fails, the active transmission high-frequency unit is replaced with the preliminary transmission high-frequency unit. 9. A wireless method according to claim 8, further comprising a transmission output step of switching to

The transmission cable is an optical fiber cable;
In the indoor device side transmission step, the transmission side transmission step converts the electrical signal selected in the transmission signal selection step into an optical signal and transmits the optical signal to the outdoor device side via the optical fiber cable,
In the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electrical signal and distributes it to the transmission side outdoor device side,
In the outdoor device side reception step, the reception side transmission step converts the electrical signal selected in the reception signal selection step into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable,
11. The indoor apparatus side reception step, wherein the reception signal distribution step converts the optical signal transmitted in the reception side transmission step into an electric signal and distributes the electric signal to the reception side indoor apparatus side. A wireless method according to any one of the above.

Transmission-side indoor device, transmission-side outdoor device, transmission cable connecting between the transmission-side indoor device and the transmission-side outdoor device, reception-side outdoor device, reception-side indoor device, and reception-side outdoor device and reception-side indoor A wireless device having a receiving cable connecting between the devices,
The transmitting side indoor device is:
A baseband signal distributor for distributing the input baseband signal;
A modulator for modulating the signal distributed by the baseband signal distributor;
A preliminary modulation unit for modulating the signal distributed by the baseband signal distribution unit;
Selecting one of the signals modulated in the modulation unit and the preliminary modulation unit, and when the modulation unit fails, a transmission signal selection unit for switching the modulation unit to the preliminary modulation unit,
The transmitting outdoor device is:
A first connection unit for connecting the signal selected by the transmission signal selection unit via the transmission cable;
A transmission frequency converting unit that converts the frequency of the signal connected at the first connecting unit to a carrier frequency band;
A transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit;
A preliminary transmission conversion unit that converts the frequency of the signal connected at the first connection unit to a carrier frequency band;
A preliminary transmission high-frequency unit for amplifying the signal converted by the preliminary transmission conversion unit;
When a signal amplified in the transmission high-frequency unit and the preliminary transmission high-frequency unit is output and the transmission frequency conversion unit or the transmission high-frequency unit fails, the transmission frequency conversion unit and the transmission high-frequency unit are replaced with a preliminary transmission frequency conversion unit and A transmission output unit for switching to the preliminary transmission high-frequency unit,
The reception-side outdoor device is
A received signal distributor for distributing received RF signals;
A reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A reception frequency conversion unit that converts the signal amplified by the reception high-frequency unit into an IF signal;
A preliminary reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A preliminary reception frequency converter that converts the signal amplified by the preliminary reception high-frequency unit into an IF signal;
When the reception high-frequency unit or the reception frequency conversion unit fails when the signal converted in the reception frequency conversion unit and the preliminary reception frequency conversion unit is selected, the reception high-frequency unit and the reception frequency conversion unit are replaced with the preliminary reception high-frequency unit. And a reception signal selection unit for switching to the preliminary reception frequency conversion unit,
The receiving indoor device is:
A second connection unit for connecting a signal selected by the reception signal selection unit;
A demodulator that demodulates the signal connected at the second connection unit;
A preliminary demodulation unit for demodulating the signal connected at the second connection unit;
A reception output selection unit that selects and outputs a signal demodulated in the demodulation unit and the preliminary demodulation unit, and switches the demodulation unit to the preliminary demodulation unit when the demodulation unit fails; A wireless device.

A transmitting indoor device, a receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device, the transmitting outdoor device and the receiving outdoor device. Including an outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device,
The transmitting side indoor device is:
A baseband signal distributor for distributing the input baseband signal;
A modulator for modulating the signal distributed by the baseband signal distributor;
A preliminary modulation unit for modulating the signal distributed by the baseband signal distribution unit;
A transmission signal selection unit that selects one of the signals modulated in the modulation unit and the preliminary modulation unit, and switches the modulation unit to the preliminary modulation unit when the modulation unit fails, and the transmission signal selection unit A transmission-side transmission unit that transmits the signal selected in step 1 to the outdoor device via the transmission cable;
The transmitting outdoor device is:
A transmission signal distribution unit that distributes the signal transmitted from the transmission side transmission unit to the transmission side outdoor device side;
A transmission side demultiplexing unit for demultiplexing the signal distributed by the transmission signal distribution unit;
A transmission side demultiplexing signal distribution unit that distributes the signal demultiplexed by the transmission side demultiplexing unit;
A working transmission frequency converter for converting the frequency of the signal distributed by the transmission side demultiplexing signal distributor to a carrier frequency band;
A working transmission high-frequency unit that amplifies the signal converted by the working transmission frequency conversion unit;
A preliminary transmission frequency converter for converting the frequency of the signal distributed by the transmission side demultiplexing signal distributor to a carrier frequency band;
A preliminary transmission high-frequency unit for amplifying the signal converted by the preliminary transmission frequency conversion unit;
When one of the signals amplified in the active transmission high-frequency unit and the standby transmission high-frequency unit is selected and output, and the active transmission frequency conversion unit or the active transmission high-frequency unit fails, the active transmission frequency conversion And a transmission output unit for switching the active transmission high-frequency unit to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit,
The reception-side outdoor device is
A received signal distributor for distributing received RF signals;
An active reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A preliminary reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A received signal that selects one of the signals amplified in the active reception high-frequency unit and the standby reception RF and switches the active reception high-frequency unit to the standby reception high-frequency unit when the active reception high-frequency unit fails A selection section;
A reception-side transmission unit that transmits the signal selected by the reception signal selection unit to the indoor device side via the transmission cable;
The receiving indoor device is:
A reception signal distribution unit that distributes the signal transmitted from the reception-side transmission unit to the reception-side indoor device side;
A receiving side demultiplexing unit for demultiplexing the signal distributed by the received signal distributing unit;
A receiving side demultiplexing signal distributing unit for distributing the signal demultiplexed by the receiving side demultiplexing unit;
A working reception frequency converter that converts the signal distributed by the receiving side demultiplexing signal distributor into an IF signal;
A working demodulator that demodulates the signal converted by the working reception frequency converter;
A preliminary reception frequency converter for converting the signal distributed by the receiving side demultiplexing signal distributor to an IF signal;
A preliminary demodulation unit that demodulates the signal converted by the preliminary reception frequency conversion unit;
When one of the signals demodulated in the demodulator and the standby demodulator is selected and output, and the active reception frequency converter or the active demodulator fails, the active reception frequency converter and A radio apparatus comprising: a reception output selection unit that switches the active demodulation unit to a standby reception frequency conversion unit and a standby demodulation unit.

A transmitting indoor device, a receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device, the transmitting outdoor device and the receiving outdoor device. Including an outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device,
The transmitting side indoor device is:
A baseband signal distributor for distributing the input baseband signal;
A modulator for modulating the signal distributed by the baseband signal distributor;
A preliminary modulation unit for modulating the signal distributed by the baseband signal distribution unit;
A transmission signal selection unit that selects one of the signals modulated in the modulation unit and the preliminary modulation unit, and switches the modulation unit to the preliminary modulation unit when the modulation unit fails, and the transmission signal selection unit A transmission-side transmission unit that transmits the signal selected in step 1 to the outdoor device via the transmission cable;
The transmitting outdoor device is:
A transmission signal distribution unit that distributes the signal transmitted from the transmission side transmission unit to the transmission side outdoor device side;
A transmission side demultiplexing unit for demultiplexing the signal distributed by the transmission signal distribution unit;
A transmission-side demultiplexing signal switching unit that switches a signal demultiplexed by the transmission-side demultiplexing unit, and an active transmission frequency conversion unit that converts the frequency of the signal switched by the transmission-side demultiplexing signal switching unit into a carrier frequency band When,
A working transmission high-frequency unit that amplifies the signal converted by the working transmission frequency conversion unit;
A preliminary transmission frequency converting unit that converts the frequency of the signal switched by the transmission side demultiplexing signal switching unit into a carrier frequency band;
A preliminary transmission high-frequency unit for amplifying the signal converted by the preliminary transmission frequency conversion unit;
When one of the signals amplified in the active transmission high-frequency unit and the standby transmission high-frequency unit is selected and output, and the active transmission frequency conversion unit or the active transmission high-frequency unit fails, the active transmission frequency conversion And a transmission output unit for switching the active transmission high-frequency unit to a preliminary transmission frequency conversion unit and a preliminary transmission high-frequency unit,
The reception-side outdoor device is
A received signal distributor for distributing received RF signals;
An active reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A preliminary reception high-frequency unit for amplifying the signal distributed by the reception signal distribution unit;
A received signal that selects one of the signals amplified in the active reception high-frequency unit and the standby reception RF and switches the active reception high-frequency unit to the standby reception high-frequency unit when the active reception high-frequency unit fails A selection section;
A reception-side transmission unit that transmits the signal selected by the reception signal selection unit to the indoor device side via the transmission cable;
The receiving indoor device is:
A reception signal distribution unit that distributes the signal transmitted from the reception-side transmission unit to the reception-side indoor device side;
A receiving side demultiplexing unit for demultiplexing the signal distributed by the received signal distributing unit;
A receiving-side demultiplexing signal switching unit that switches a signal demultiplexed by the receiving-side demultiplexing unit, a working reception frequency converting unit that converts the signal switched by the receiving-side demultiplexing signal switching unit into an IF signal,
A working demodulator that demodulates the signal converted by the working reception frequency converter;
A preliminary reception frequency converting unit that converts the signal switched by the receiving side demultiplexing signal switching unit into an IF signal;
A preliminary demodulation unit that demodulates the signal converted by the preliminary reception frequency conversion unit;
When one of the signals demodulated in the demodulator and the standby demodulator is selected and output, and the active reception frequency converter or the active demodulator fails, the active reception frequency converter and A radio apparatus comprising: a reception output selection unit that switches the active demodulation unit to a standby reception frequency conversion unit and a standby demodulation unit.

The transmission cable is an optical fiber cable;
In the transmission-side indoor device, the transmission-side transmission unit converts the electrical signal selected by the transmission signal selection unit into an optical signal and transmits the optical signal to the outdoor device side via the optical fiber cable.
In the transmission-side outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission-side transmission unit into an electrical signal and distributes it to the transmission-side outdoor device side,
In the reception-side outdoor device, the reception-side transmission unit converts the electrical signal selected by the reception signal selection unit into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable,
15. The reception-side indoor device, wherein the reception signal distribution unit converts the optical signal transmitted from the reception-side transmission unit into an electrical signal and distributes the electric signal to the reception-side indoor device side. A wireless device according to claim 1.

A modulation unit that modulates the input signal, a transmission frequency conversion unit that converts the frequency of the input signal to the carrier frequency band, a transmission high-frequency unit that amplifies the input signal, a reception high-frequency unit that amplifies the input signal, and the input signal A reception frequency conversion unit for converting to an IF signal; a demodulation unit for demodulating an input signal; and an indoor device having the modulation unit and the demodulation unit; and an outdoor device having the transmission high-frequency unit and the reception high-frequency unit. A wireless method in a wireless device,
The indoor device side transmission step is
A modulation step for modulating the input baseband signal by the modulation unit;
A transmission side transmission step of transmitting the signal modulated in the modulation step to the outdoor device side through a transmission cable;
The outdoor device side transmission step is
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission conversion step of converting the signal demultiplexed in the transmission side demultiplexing step by a transmission frequency conversion unit;
A transmission RF step for amplifying the signal converted in the transmission conversion step by a transmission high-frequency unit;
A transmission output step for outputting the signal amplified in the transmission RF step,
The outdoor device side reception step is
A reception RF step for amplifying the received RF signal by the reception high-frequency unit;
A reception-side transmission step of transmitting the signal amplified in the reception RF step to the indoor device side via the transmission cable;
With
The indoor device side reception step is
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A reception frequency conversion step of converting the signal demultiplexed in the reception side demultiplexing step into an IF signal by a reception frequency conversion unit;
A demodulation step of demodulating the signal converted in the reception frequency conversion step by a demodulation unit;
And a reception output step of outputting the signal demodulated in the demodulation step.

The outdoor device side receiving step includes:
After the reception RF step, further comprising a reception frequency conversion step of converting the signal amplified by the reception RF step into an IF signal by a reception frequency conversion unit,
The indoor device side receiving step includes:
A reception signal distribution step of distributing the signal transmitted in the reception side transmission step to the demodulation unit side;
A receiving side demultiplexing step of demultiplexing the signal distributed in the received signal distribution step;
A demodulating step of demodulating the signal demultiplexed in the receiving side demultiplexing step by a demodulator;
17. The radio method according to claim 16, further comprising: a reception output step for outputting the signal demodulated in the demodulation step.

The indoor device side transmission step includes:
A transmission frequency converting step for converting the signal modulated in the modulating step after the modulating step;
The outdoor device side transmission step includes:
A transmission signal distribution step of distributing the signal transmitted in the transmission side transmission step to the transmission high-frequency unit side;
A transmission side demultiplexing step of demultiplexing the signal distributed in the transmission signal distribution step;
A transmission RF step for amplifying the signal demultiplexed in the transmission side demultiplexing step in a transmission high-frequency unit;
The wireless method according to claim 16, further comprising: a transmission output step for outputting the signal amplified in the transmission RF step.

The transmission cable is an optical fiber cable;
In the indoor device side transmission step, the transmission side transmission step converts the electrical signal selected in the transmission signal selection step into an optical signal and transmits the optical signal to the outdoor device side via the optical fiber cable,
In the outdoor device side transmission step, the transmission signal distribution step converts the optical signal transmitted in the transmission side transmission step into an electrical signal and distributes it to the transmission side outdoor device side,
In the outdoor device side reception step, the reception side transmission step converts the electrical signal selected in the reception signal selection step into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable,
19. In the indoor device side reception step, the reception signal distribution step converts the optical signal transmitted in the reception side transmission step into an electrical signal and distributes it to the reception side indoor device side. A wireless method according to any one of the above.

A transmitting indoor device, a receiving indoor device, an indoor device including the transmitting indoor device and the receiving indoor device, a transmitting outdoor device, a receiving outdoor device, the transmitting outdoor device and the receiving outdoor device. Including an outdoor device, a wireless device having a transmission cable connecting between the indoor device and the outdoor device,
The transmitting side indoor device is:
A modulator for modulating the input baseband signal;
A transmission side transmission unit that transmits the signal modulated by the modulation unit to the outdoor device via the transmission cable;
The transmitting outdoor device is:
A transmission signal distribution unit that distributes the signal transmitted from the transmission side transmission unit to the transmission side outdoor device side;
A transmission side demultiplexing unit for demultiplexing the signal distributed by the transmission signal distribution unit;
A transmission frequency conversion unit that converts the frequency of the signal demultiplexed by the transmission side demultiplexing unit into a carrier frequency band;
A transmission high-frequency unit that amplifies the signal converted by the transmission frequency conversion unit;
A transmission output unit for outputting a signal amplified in the transmission high-frequency unit,
The reception-side outdoor device is
A receiving high-frequency unit for amplifying the received RF signal;
A reception-side transmission unit that transmits the signal amplified in the reception high-frequency unit to the indoor device side via the transmission cable;
The receiving indoor device is:
A reception signal distribution unit that distributes the signal transmitted from the reception-side transmission unit to the reception-side indoor device side;
A receiving side demultiplexing unit for demultiplexing the signal distributed by the received signal distributing unit;
A reception frequency converting unit that converts the signal demultiplexed by the receiving side demultiplexing unit into an IF signal;
A demodulator that demodulates the signal converted by the reception frequency converter;
A radio apparatus comprising: a reception output unit that outputs a signal demodulated by the demodulation unit.

The transmission cable is an optical fiber cable;
In the transmission-side indoor device, the transmission-side transmission unit converts the electrical signal selected by the transmission signal selection unit into an optical signal and transmits the optical signal to the outdoor device side via the optical fiber cable.
In the transmission-side outdoor device, the transmission signal distribution unit converts the optical signal transmitted from the transmission-side transmission unit into an electrical signal and distributes it to the transmission-side outdoor device side,
In the reception-side outdoor device, the reception-side transmission unit converts the electrical signal selected by the reception signal selection unit into an optical signal and transmits the optical signal to the indoor device via the optical fiber cable,
21. The radio apparatus according to claim 20, wherein, in the reception-side indoor device, the reception signal distribution unit converts the optical signal transmitted from the reception-side transmission unit into an electric signal and distributes the electric signal to the reception-side indoor device side. .