JPS5992638A - Multichannel access type radio telephone system - Google Patents

Multichannel access type radio telephone system

Info

Publication number
JPS5992638A
JPS5992638A JP57202147A JP20214782A JPS5992638A JP S5992638 A JPS5992638 A JP S5992638A JP 57202147 A JP57202147 A JP 57202147A JP 20214782 A JP20214782 A JP 20214782A JP S5992638 A JPS5992638 A JP S5992638A
Authority
JP
Japan
Prior art keywords
station
terminal
radio
telephone system
radio telephone
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
JP57202147A
Other languages
Japanese (ja)
Inventor
Kenichi Toriyama
鳥山　研一
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 JP57202147A priority Critical patent/JPS5992638A/en
Publication of JPS5992638A publication Critical patent/JPS5992638A/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 simplify an approach circuit to a repeater station by installing the same radio equipment at the repeater station installed at a terminal station. CONSTITUTION:Terminal stations 51 and 52 are connected to master station radio equipments 41 and 42, and a terminal station 10 is connected to a master station 4n through a repeater station (5n and 9). The repeater station consists of the same radio equipment 5n as that of the terminal stations 51 and 52 and the radio equipment 9 for terminal stations; and the approach circuit from a radio circuit controller 3 to the repeater station uses an optional free channel among plural channels.

Description

【発明の詳細な説明】 本発明は、防災行政無線電話システムに関することであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disaster prevention administrative radio telephone system.

第り図に従来のシステム構成の一例を示す。第１図は、
主にマルチチャネルアクセス方式の無線電話システム構
成図であるが、地理的な制約で。Figure 2 shows an example of a conventional system configuration. Figure 1 shows
This is a diagram of a wireless telephone system mainly using a multi-channel access method, but due to geographical restrictions.

少数の端末局へは統制局から直接電波が届かず。Direct radio waves from the control station do not reach a small number of terminal stations.

１− 途中に中継局を設ける必要のある回線を含むシステム構
成を示している。１は統制局内電話機、２は中継交換機
、３はマルチ系の回線を制御する回線制御装置、４はマ
ルチ系の親局無線機でチャネル数分設置されている。５
はマルチ系の端末局でチャネル切換無線機が設置されて
いる。６は中継局経由で端末局へ延びる回線の信号変換
装置、７はそのための親局無線機（単一チャネル）、８
．９は中継局の親向けおよび端末局向けの無線機、１０
はその系の端末局を示す。この様な回線構成にした場合
、中継所へのアプローチ回線が必要であり。1- This shows a system configuration that includes a line that requires a relay station in the middle. 1 is a control station telephone, 2 is a relay exchange, 3 is a line control device that controls multi-system lines, and 4 is a multi-system master station radio, which is installed for the number of channels. 5
is a multi-system terminal station equipped with channel switching radio equipment. 6 is a signal conversion device for a line extending to a terminal station via a relay station; 7 is a master station radio for this purpose (single channel); 8
．． 9 is a radio device for relay station parents and terminal stations; 10
indicates the terminal station of that system. When using such a line configuration, an approach line to the relay station is required.

そのために別個に周波数が割り当てられる必要がある。For this purpose, frequencies need to be allocated separately.

又、統制局に信号変換装置が別個に必要となり１周波数
の有効利用およびシステムコストの面で改善する余地が
あった。Furthermore, a separate signal conversion device is required at the control station, and there is room for improvement in terms of effective use of one frequency and system cost.

本発明はこれらの不具合点を解決するための一案を提供
するものであり１周波数の有効利用およびシステムコス
トの低減化を目的とするものである。The present invention provides a solution to these problems, and aims to effectively utilize one frequency and reduce system cost.

第２図に本発明による一実施例のシステム構成図を示す
。第１図と同一符号は同一品名を表わす。FIG. 2 shows a system configuration diagram of an embodiment according to the present invention. The same symbols as in FIG. 1 represent the same product names.

すなわち１本方式では、中継所にマルチ系の端末局と同
等の無線機５ｎを設置し、端末局面無線機９へ中継する
ものである。本方式によれば、統制局から中継所へのア
プローチ回線は、マルチチャネルの空いている任意のチ
ャネルが使用出来、新たにアプローチ回線を別系として
構成する必要は無い。又、中継所もマルチ系の一端末局
扱いとすることにより、端末局１０を含む回線も統制局
の回線制御装置３により制御することが可能となり。That is, in the single-line system, a radio device 5n equivalent to a multi-system terminal station is installed at a relay station, and the signal is relayed to the terminal station radio device 9. According to this system, any available multi-channel channel can be used as the approach line from the control station to the relay station, and there is no need to newly configure an approach line as a separate system. Furthermore, by treating the relay station as one terminal station in a multi-system system, the line including the terminal station 10 can also be controlled by the line control device 3 of the control station.

第１図に示す信号変換装置６が不要となる。以上述べた
如く本方式によれば周波数の有効利用およびシステムコ
スト低減のために効果大である。The signal conversion device 6 shown in FIG. 1 becomes unnecessary. As described above, this method is highly effective in effectively utilizing frequencies and reducing system costs.

以上説明した如（９本発明によれば１周波数の有効利用
およびシステムコストの低減をはかることが出来る。As explained above (9) According to the present invention, one frequency can be used effectively and system costs can be reduced.

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

第１図は従来のシステム構成図、第２図は本発明による
一実施例のシステム構成図。 ２：中継交換機、３：回線制御装置、４：親局無線機、
５：端末局（マルチ系）、６：信号変換装置、７：無線
機（単−系）、８．９：中継体無線機、１０：端末局（
単−系）。 −り←FIG. 1 is a conventional system configuration diagram, and FIG. 2 is a system configuration diagram of an embodiment according to the present invention. 2: Trunk exchange, 3: Line control device, 4: Master station radio,
5: Terminal station (multi-system), 6: Signal converter, 7: Radio (single-system), 8.9: Relay radio, 10: Terminal station (
mono-system). −ri←

Claims (1)

【特許請求の範囲】[Claims] 中継交換機と９回線制御装置と、接続されたチャネル数
相当の親局無線機とを有する統制局のもとにチャネル切
換無線機を有する複数の端末局を有するマルチアクセス
無線電話システムにおいて端末局のうち１局もしくはそ
れ以上を単一チャネル無線機に接続して中継局を構成す
ることを特徴とするマルチチャネルアクセス方式無線電
話システム。A terminal station in a multi-access wireless telephone system having a plurality of terminal stations each having a channel switching radio under a control station having a relay exchange, nine line control devices, and master station radios corresponding to the number of connected channels. A multi-channel access wireless telephone system characterized in that one or more of the stations are connected to a single-channel radio to constitute a relay station.
JP57202147A 1982-11-19 1982-11-19 Multichannel access type radio telephone system Pending JPS5992638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57202147A JPS5992638A (en) 1982-11-19 1982-11-19 Multichannel access type radio telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57202147A JPS5992638A (en) 1982-11-19 1982-11-19 Multichannel access type radio telephone system

Publications (1)

Publication Number Publication Date
JPS5992638A true JPS5992638A (en) 1984-05-28

Family

ID=16452736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57202147A Pending JPS5992638A (en) 1982-11-19 1982-11-19 Multichannel access type radio telephone system

Country Status (1)

Country Link
JP (1) JPS5992638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06177832A (en) * 1992-08-13 1994-06-24 Hughes Aircraft Co Radiotelephone system using multi- subscriber unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894088A (en) * 1972-03-13 1973-12-04
JPS5221483B2 (en) * 1973-04-26 1977-06-10
JPS5583357A (en) * 1978-12-20 1980-06-23 Fujitsu General Ltd Automatic repeating system
JPS55107349A (en) * 1979-02-13 1980-08-18 Nippon Telegr & Teleph Corp <Ntt> Radio relay unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894088A (en) * 1972-03-13 1973-12-04
JPS5221483B2 (en) * 1973-04-26 1977-06-10
JPS5583357A (en) * 1978-12-20 1980-06-23 Fujitsu General Ltd Automatic repeating system
JPS55107349A (en) * 1979-02-13 1980-08-18 Nippon Telegr & Teleph Corp <Ntt> Radio relay unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06177832A (en) * 1992-08-13 1994-06-24 Hughes Aircraft Co Radiotelephone system using multi- subscriber unit

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