JPS5840940A - Mobile communication system - Google Patents

Mobile communication system

Info

Publication number
JPS5840940A
JPS5840940A JP56137742A JP13774281A JPS5840940A JP S5840940 A JPS5840940 A JP S5840940A JP 56137742 A JP56137742 A JP 56137742A JP 13774281 A JP13774281 A JP 13774281A JP S5840940 A JPS5840940 A JP S5840940A
Authority
JP
Japan
Prior art keywords
radio
base station
mobile station
zone
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
JP56137742A
Other languages
Japanese (ja)
Inventor
Hitoshi Odate
大舘　均
Hiroshi Suzuki
博 鈴木
Kazuo Nakagawa
一夫 中川
Toshio Nojima
俊雄 野島
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56137742A priority Critical patent/JPS5840940A/en
Publication of JPS5840940A publication Critical patent/JPS5840940A/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
    • H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]

Landscapes

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

Abstract

PURPOSE:To simplify the constitution of a mobile station and to increase the number of radio channels allotted to a base station, by making the mobile station fixed in radio channel and making the base station variable in radio channel, respectively. CONSTITUTION:A mobile station 1 has plural fixed radio channels allotted within a zone. Each zone includes one or plural radio base stations 2. A channel device 4 of the base station has a radio channel varying device and is set successively in accordance with the radio channel of the station 1 which is connected at present in the own zone. Thus it is not required to allot the number of radio channels within each zone. As a result, the station 2 can include a sufficiently large number of devices 4, and the circuit capacity is increased within each zone.

Description

【発明の詳細な説明】 本発明は、ゾーン構成を用いる移動局通信方式における
移動局及び基地局の無線チャネル構成に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a radio channel configuration of a mobile station and a base station in a mobile station communication system using a zone configuration.

従来の自動車電話等移動通信方式においては、周波数有
効利用、基地局及び移動局の送信出力低減などを主な目
的に、サービスエリア内を複数のゾーンに分割し各ゾー
ンに基地局をそれぞれ置くゾーン構成が行なわれており
、各ゾーンへの無線チャネル割当ては、電波干渉を避け
るために一定距離以上離れたゾーンでなければ同一無線
チャネルを割当てることができず、全無線チャネル数、
ゾーン半径、基地局及び移動局送信出力、許容子エリア
内で使用可能とするために無線チャネル可変装置を具備
する必要があり、移動局が無線ゾーン間を移動するたび
に無線チャネルを基地局チャネルに合せて新たに設定し
なおす必要があり、移動局が高価で複雑となる欠点があ
った。In conventional mobile communication systems such as car telephones, the service area is divided into multiple zones and a base station is placed in each zone, with the main purpose of making effective use of frequencies and reducing the transmission output of base stations and mobile stations. In order to avoid radio wave interference, the same radio channel cannot be assigned to zones unless they are separated by a certain distance, and the total number of radio channels is
Zone radius, base station and mobile station transmission power, it is necessary to be equipped with a radio channel variable device to enable use within the allowable area, and each time the mobile station moves between radio zones, the radio channel changes to the base station channel. It is necessary to reconfigure the mobile station according to the current situation, which has the disadvantage of making the mobile station expensive and complicated.

本発明は、移動局が無線チャネル固定であることを特徴
とし、移動局の簡易化と基地局割当て無線チャネルの増
大を目的としている。The present invention is characterized in that the mobile station has a fixed radio channel, and aims to simplify the mobile station and increase the number of radio channels allocated to the base station.

添付図面は本発明の実施例であって、１は移動局、２は
無線基地局、３は基地局送受信アンテナ共用装置、４は
基地局チャネル装置である。図は１ゾーン内の構成を示
しており、移動局１は割当て無線チャネル〜固定であり
、図中では１ゾーン内に複数の移動局がいることを示し
ており、移動局は無線ゾーン間を越えて移動することが
できる。The accompanying drawings show an embodiment of the present invention, in which 1 is a mobile station, 2 is a wireless base station, 3 is a base station transmitting/receiving antenna sharing device, and 4 is a base station channel device. The figure shows the configuration within one zone, and mobile station 1 has a fixed wireless channel assigned to it. can move beyond.

無線基地局２は各ゾーンに１局又は複数局置かれ、移動
局との通信は３の送受信アンテナ共用装置を介し、４の
チャネル装置により一般網へと接続される。One or more radio base stations 2 are placed in each zone, and communication with mobile stations is connected to the general network through 3 shared transmitting/receiving antenna devices and 4 channel devices.

基地局チャネル装置は無線チャネル可変装置を持ち、現
在自分のゾーン内で接続している移動局の無線チャネル
１に合せて逐次無線チャネルを設定する。このような構
成であるから、移動機は低価格化１．簡易構成化が可能
である。また無線干渉が生じるのは、同一周波数移動局
が干渉距離内で同時に通話した場合やあり、無線チャネ
ル数が多く干渉距離の短かいシステムでは干渉の可能性
は少ない。したがって、各ゾーン内での無線チャネル数
を割当てる必要がなく、各基地局には充分多くの無線チ
ャネル装置を持たすことが可能であり、各ゾーン内での
回線容量を増大できる。The base station channel device has a radio channel variable device and sequentially sets a radio channel in accordance with the radio channel 1 of the mobile station currently connected within its own zone. With such a configuration, the mobile device can be made at low cost.1. Simple configuration is possible. Additionally, radio interference may occur when mobile stations on the same frequency communicate simultaneously within interference distance, and the possibility of interference is low in systems with a large number of radio channels and short interference distance. Therefore, there is no need to allocate the number of radio channels within each zone, and each base station can have a sufficiently large number of radio channel devices, thereby increasing the line capacity within each zone.

以上説明したように、移動局無線チャネル固定であるか
ら移動局装置は簡易化、低価格化される利点−がある。As explained above, since the mobile station radio channel is fixed, the mobile station apparatus has the advantage of being simpler and lower in price.

さらに、基地局に割当て可能な無線チャネル数は最大全
チャネルまで増加させることができ、時間的に移動局が
少数ゾーンに集中するようなシステムにおいても呼損な
少なくできる利点がある。Furthermore, the number of radio channels that can be assigned to a base station can be increased to a maximum of all channels, and there is an advantage that call loss can be reduced even in a system where mobile stations are concentrated in a small number of zones over time.

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

添付図面は本発明の一実施例で１ゾーン内の移動通信の
構成を示す。 １・・・・・・・・・移動局 ２・・・・・・・・・無線基地局 ３・・・・・・・・・基地局送受信アンテナ共用装置４
・・・・・・・・・基地局チャネル装置特許出願人 日本電信電話公社 特許出願代理人 弁理士　　山　　本　　恵　　−The accompanying drawings show the configuration of mobile communication within one zone in one embodiment of the present invention. 1... Mobile station 2... Radio base station 3... Base station transmitting/receiving antenna sharing device 4
・・・・・・・・・Base station channel device patent applicant Nippon Telegraph and Telephone Corporation Patent application agent Patent attorney Megumi Yamamoto −

Claims (1)

【特許請求の範囲】[Claims] サービスエリアが多数の無線ゾーンで構成され、複数の
無線周波数を用い多数の移動体に無線電話サービスを、
提供する移動通信方式において、移動局装置は個々の移
動局に割当てられた無線チャネルを固定して単一無線チ
ャネル装置とし、基地局装置は全無線チャネルに接続可
能な無線チャネル可変装置を持ち、移動局と基地局との
接続においては、基地局無線チャネルを移動局チャネル
に合せて逐次設定することを特徴とする移動通信方式。The service area consists of many wireless zones, and wireless telephone services are provided to many mobile devices using multiple radio frequencies.
In the provided mobile communication system, the mobile station device fixes the radio channel assigned to each mobile station to form a single radio channel device, the base station device has a radio channel variable device that can connect to all radio channels, A mobile communication system characterized in that, in connection between a mobile station and a base station, a base station radio channel is sequentially set to match a mobile station channel.
JP56137742A 1981-09-03 1981-09-03 Mobile communication system Pending JPS5840940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56137742A JPS5840940A (en) 1981-09-03 1981-09-03 Mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56137742A JPS5840940A (en) 1981-09-03 1981-09-03 Mobile communication system

Publications (1)

Publication Number Publication Date
JPS5840940A true JPS5840940A (en) 1983-03-10

Family

ID=15205762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56137742A Pending JPS5840940A (en) 1981-09-03 1981-09-03 Mobile communication system

Country Status (1)

Country Link
JP (1) JPS5840940A (en)

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