JPS60182233A - Mobile communication system - Google Patents

Mobile communication system

Info

Publication number
JPS60182233A
JPS60182233A JP59036035A JP3603584A JPS60182233A JP S60182233 A JPS60182233 A JP S60182233A JP 59036035 A JP59036035 A JP 59036035A JP 3603584 A JP3603584 A JP 3603584A JP S60182233 A JPS60182233 A JP S60182233A
Authority
JP
Japan
Prior art keywords
station
base station
relay
terminal
control station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59036035A
Other languages
Japanese (ja)
Inventor
Yuji Okutsu
奥津　雄次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP59036035A priority Critical patent/JPS60182233A/en
Publication of JPS60182233A publication Critical patent/JPS60182233A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To attain effective utilization by transmitting a voice from a mobile circuit to a control station while being attenuated at the selection of other radio base station at a radio base station and applying multi-drop connection to plural base stations on one line accommodated in the control station to improve the communication efficiency per one line. CONSTITUTION:A control circuit provided with a reception terminal 11, a transmitter input terminal 19, a reception output terminal 20 and a transmission terminal 23 is inserted between a receiver of a radio base station and the control station of the mobile communication system. A contact (b) of a relay B driven by a reception level matching amplifier 12 and a press signal receiver 13 is connected between the terminals 11 and 9. Moreover, an attenuator 21 short- circuited by a contact (c) of a relay C driven by an output of a selection memory circuit 16 and a transmission level matching amplifier 22 are connected between the terminal 20 and 23. Then the output of the receiver 13 and the selection signal receiver 15 controls relay contacts (a), (c) and the relay contact (b), the signal through the voice circuit from the mobile station is attenuated by the attenuator 21 at the selection of other base station at a base station to improve the communication efficiency per one line.

Description

【発明の詳細な説明】 （技術分野）　。[Detailed description of the invention] (Technical field) .

本発明は移動通信システムにおける音声伝送に関するも
のである。The present invention relates to voice transmission in a mobile communication system.

（従来技術とその問題点） 第１図は統制局と無線基地局との接続を説明する図であ
る。１は統制局の指令台、２は統制局の制御装置、３は
無線基地局、４は回線分岐装置。(Prior art and its problems) FIG. 1 is a diagram illustrating the connection between a control station and a wireless base station. 1 is a command console of a control station, 2 is a control device of a control station, 3 is a wireless base station, and 4 is a line branching device.

５は統制局と基地局間の接続回線、６はアンテナであり
図の如く接続されている。5 is a connection line between the control station and the base station, and 6 is an antenna, which are connected as shown in the figure.

従来、無線基地局では移動局の音声を減衰せずに送出し
ているため１つの無線基地局使用中に同一回線上の他無
線基地局経由の移動局からの統制局呼出があると既通話
に対して混信となり１円滑な通信が出来ない欠点があっ
た。Conventionally, wireless base stations transmit the voice of mobile stations without attenuation, so if one wireless base station is in use and there is a call to the control station from a mobile station via another wireless base station on the same line, it will be recognized as an existing call. However, there was a drawback in that interference occurred and smooth communication was not possible.

（目的） 本発明はこれらの欠点を除去するため無線基地局におい
て他無線基地局選択使用中を検出し、他無線基地局選択
使用中のみ無線基地局の受信出力に減衰器を挿入する事
を特徴とし、その目的は選択された無線基地局を経由し
ての統制局−移動局間の通信を円滑に終了させる事を目
的とし、第２の目的は非選択基地局に対し移動局から統
制局への呼出も（緊急呼出等）統制局で認識出来るよう
にすることにある。(Purpose) In order to eliminate these drawbacks, the present invention detects when another radio base station is being used and inserts an attenuator into the reception output of the radio base station only when another radio base station is being used. The purpose is to smoothly terminate communication between the control station and the mobile station via the selected radio base station, and the second purpose is to terminate the communication from the mobile station to the non-selected base station. The purpose is to enable calls to the station (such as emergency calls) to be recognized by the control station.

（実施例） 本発明の目的は統制局に収容される１回線上に複数無線
基地局をマルチドロップ接続して１回線当たりの通信効
率を上げかつ高価な回線を有効利用する事にある。又、
統制局からは各無線基地局を選択使用する事が前提とし
である。（１回線上の全無線基地局から電波送出するこ
とはない。移動局では無線基地局の丁度真中にある場合
ビート等で円滑な通話出来ない。）選択使用する事から
は無線基地局に他無線基地局使用中の検出機能付加する
事が出来るのでこれを利用する。(Embodiment) An object of the present invention is to connect a plurality of radio base stations in a multi-drop manner onto one line accommodated in a control station, thereby increasing the communication efficiency per line and making effective use of expensive lines. or,
The premise is that the control station selectively uses each wireless base station. (Radio waves are not transmitted from all the wireless base stations on one line. If the mobile station is located exactly in the middle of the wireless base station, it will not be possible to make smooth calls due to beats, etc.) It is possible to add a function to detect when a wireless base station is in use, so use this.

第２図は本発明の１実施例である。第２図は無線基地局
内の無線機と統制局とに接続される回線間に挿入する制
御回路である。第２図において。FIG. 2 shows one embodiment of the invention. FIG. 2 shows a control circuit inserted between a line connected to a radio device in a radio base station and a control station. In fig.

１１は図示されない統制局からの受話端子、１２は受話
レベル整合用増幅器、１３は図示す扛ない統制局からの
送信機起動信号を受信するプレス受信機。Reference numeral 11 denotes a reception terminal from a control station (not shown), 12 a reception level matching amplifier, and 13 a press receiver for receiving a transmitter activation signal from a control station (not shown).

１４は該プレス受信機により駆動されるリレーＢである
。ｂは該Ｂ　ＩＪシレー接点、１５は統制局からの無線
基地局選択信号を受信する選択信号受信器。14 is a relay B driven by the press receiver. b is the B IJ relay contact, and 15 is a selection signal receiver that receives a wireless base station selection signal from a control station.

１６は該選択信号受信器の出力と図示はれない無想基地
局番号設定器と照合し、照合時後述するリレー１７を駆
動しつづけ、自局番号以外では該リレー１７の駆動を停
止し、かつ他無線基地局番号の時には後述するリレー８
を駆動し、自動番号ではＣのリレー駆動を停止する選択
メモリー回路、１．７．１８は該選択メモリ回路により
駆動されるリレーＡおよびＣである。ａ、ｃは該リレー
の接点である。16 compares the output of the selection signal receiver with an unillustrated base station number setter, continues to drive a relay 17 (described later) during the comparison, and stops driving the relay 17 for numbers other than the own station number; And when it is another wireless base station number, relay 8 which will be described later
1.7.18 are relays A and C driven by the selection memory circuit. a and c are the contacts of the relay.

１９は図示きれない無想機への送信出力端子、２０は図
示さ扛ない無線機からの受信入力端子、２１は減衰器、
２２は送話レベル整合用増幅器、２３は図示さ扛ない統
制局への送話端子であり図の如く接続されている。以下
この動作について詳細に説明する。19 is a transmission output terminal to a radio device (not shown), 20 is a reception input terminal from a radio device (not shown), 21 is an attenuator,
Reference numeral 22 is a transmitting level matching amplifier, and 23 is a transmitting terminal for a control station (not shown), which are connected as shown in the figure. This operation will be explained in detail below.

図示されない統制局から無線基地局の１つを使って１図
示されない移動局を呼び出す場合は、無線基地局では統
制局から送出される無線基地局選択信号を選択信号受信
機１５により受信し選択された無線基地局ではリレーＡ
が動作を続ける（リレーａ閉）。次に統制局から音声と
ともに送信機起動信号が送られて来るので送信機起動信
号をプレス受信器１３で受信し、リレーＢを駆動する。When a control station (not shown) calls a mobile station (not shown) using one of the wireless base stations, the wireless base station receives a wireless base station selection signal sent from the control station by the selection signal receiver 15 and selects a mobile station. relay A at the wireless base station
continues to operate (relay a closed). Next, a transmitter activation signal is sent along with the voice from the control station, so the press receiver 13 receives the transmitter activation signal and drives relay B.

リレーＨの接点すにより図示きれない無線機の送信起動
をするので統制局からの音声は移動局に送ら扛呼出力出
来る。次に移動局から統制局を吐出す場３− 合は、移動局からの音声は図示されない無線機より受信
出力端子２０に入力され９図示されない統制局に呼出が
出来、統制局移動局間でプレストーク通話が出来る。同
時に非選択の無線基地局では選択信号受信機１５により
図示されない統制局からの無線基地局選択信号を受信し
、リレー１８を駆動するので移動局からの音声は図示さ
れない無線機より受信出力端子２０に入力されるが　Ｃ
ＩＪシレー動作している（接点Ｃが減衰器側に閉じる）
ので減衰器２１が挿入されて図示されない統制局に送ら
ｎる。Since the contact of relay H activates the transmission of a radio device (not shown), the voice from the control station can be sent to the mobile station and a call can be output. Next, if the mobile station outputs a control station, the audio from the mobile station is input to the reception output terminal 20 from a radio (not shown), and a call can be made to the control station (not shown). You can make press talk calls. At the same time, in the non-selected radio base station, the selection signal receiver 15 receives a radio base station selection signal from a control station (not shown) and drives the relay 18, so that the audio from the mobile station is transmitted from the radio device (not shown) to the reception output terminal 20. is input into C
IJ relay is operating (contact C closes to the attenuator side)
Therefore, an attenuator 21 is inserted and the signal is sent to a control station (not shown).

以上により、統制局−移動局間のブレストーク通話が円
滑に行なわれる。As described above, the breathtalk communication between the control station and the mobile station can be carried out smoothly.

（効果） 以上説明の如く本発明によれば統制局に収容される１回
線上に複数無線基地局が接続されていても円滑な通話を
行なう事か出来、高価な回線を効率良く使用することが
出来るので経済的な移動通信システムが実現出来る。(Effects) As explained above, according to the present invention, even if multiple wireless base stations are connected to a single line accommodated in a control station, smooth calls can be made, and expensive lines can be used efficiently. This makes it possible to realize an economical mobile communication system.

【図面の簡単な説明】[Brief explanation of the drawing]

４− 第１図は統制局と無線基地局との接続を説明する図であ
る。１は指令台、２は統制局制御装置。 ３は無線基地局、４は回線分岐装置、５は回線。 ６はアンテナである。第２図は本発明の１実施例である
。 １１：受話端子、１２：受話レベル整合増幅器。 １３ニブレス信号受信器、１４：リレー、１５：選択信
号受信器、１６：選択メモリ回路、１７１１８　：　り
レー、１９：送信機入力端子、２０：受信出力端子。 ２１：減衰器、２２：送話レベル整合増幅器、２３：送
話端子4- FIG. 1 is a diagram illustrating the connection between a control station and a wireless base station. 1 is a command console, and 2 is a control station control device. 3 is a wireless base station, 4 is a line branching device, and 5 is a line. 6 is an antenna. FIG. 2 shows one embodiment of the invention. 11: Receiving terminal, 12: Receiving level matching amplifier. 13 Nibbles signal receiver, 14: Relay, 15: Selection signal receiver, 16: Selection memory circuit, 17118: Relay, 19: Transmitter input terminal, 20: Reception output terminal. 21: Attenuator, 22: Transmission level matching amplifier, 23: Transmission terminal

Claims (1)

【特許請求の範囲】[Claims] 統制局と統制局に接続された１回線に複数無線基地局が
接続され、該無線基地局を統制局から選択使用を行なう
対移動局通信方式において、無線基地局において他無線
基地局選択時には移動局からの音声回路は減衰して統制
局に送る事を特徴とした移動通信方式。In a communication system for mobile stations in which multiple radio base stations are connected to a control station and one line connected to the control station, and the radio base station is selectively used from the control station, when the radio base station selects another radio base station, the mobile station A mobile communication system characterized by attenuating the audio circuit from the station before sending it to the control station.
JP59036035A 1984-02-29 1984-02-29 Mobile communication system Pending JPS60182233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59036035A JPS60182233A (en) 1984-02-29 1984-02-29 Mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59036035A JPS60182233A (en) 1984-02-29 1984-02-29 Mobile communication system

Publications (1)

Publication Number Publication Date
JPS60182233A true JPS60182233A (en) 1985-09-17

Family

ID=12458454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59036035A Pending JPS60182233A (en) 1984-02-29 1984-02-29 Mobile communication system

Country Status (1)

Country Link
JP (1) JPS60182233A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266932A (en) * 1986-05-15 1987-11-19 Toshiba Corp Battery saving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62266932A (en) * 1986-05-15 1987-11-19 Toshiba Corp Battery saving system

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