JPH0213497B2 - - Google Patents

Info

Publication number
JPH0213497B2
JPH0213497B2 JP59183763A JP18376384A JPH0213497B2 JP H0213497 B2 JPH0213497 B2 JP H0213497B2 JP 59183763 A JP59183763 A JP 59183763A JP 18376384 A JP18376384 A JP 18376384A JP H0213497 B2 JPH0213497 B2 JP H0213497B2
Authority
JP
Japan
Prior art keywords
mobile station
communication
mobile
channel
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.)
Expired - Lifetime
Application number
JP59183763A
Other languages
Japanese (ja)
Other versions
JPS6162243A (en
Inventor
Toshuki Watabe
Hitoshi Komagata
Eiji Hagiwara
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.)
NTT Inc
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 JP59183763A priority Critical patent/JPS6162243A/en
Publication of JPS6162243A publication Critical patent/JPS6162243A/en
Publication of JPH0213497B2 publication Critical patent/JPH0213497B2/ja
Granted legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W99/00—Subject matter not provided for in other groups of this subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Description

【発明の詳細な説明】 （発明の属する分野） 本発明は移動衛星通信の移動局〜移動局間通信
を衛星１リンクの通信路で接続制御する回線制御
方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field to which the invention pertains) The present invention relates to a line control system for controlling the connection of mobile station-to-mobile station communication in mobile satellite communication using a communication path of one satellite link.

（従来の技術） 従来、移動体対応の衛星通信において、衛星上
で再生中継する等によつて移動局〜移動局間に衛
星１リンクの通信路を設定する考え方はあつた
が、そのための具体的制御手順についての提案は
行われていなかつた。(Prior art) Conventionally, in satellite communications for mobile objects, there has been a concept of setting up a communication path of one satellite link between mobile stations by reproducing and relaying on a satellite, etc. No proposals were made regarding physical control procedures.

第２図は従来の衛星通信回線の構成例である。
１は基地局、２及び３は等しい内部構造の移動
局、４は衛星搭載用中継器を示し、５は基地局〜
移動局間通信に使用する双方向の通信チヤネル
群、７，８はその任意のチヤネルである。また６
は制御チヤネルである。 FIG. 2 shows an example of the configuration of a conventional satellite communication line.
1 is a base station, 2 and 3 are mobile stations with the same internal structure, 4 is a satellite-mounted repeater, and 5 is a base station ~
A group of bidirectional communication channels 7 and 8 used for communication between mobile stations are arbitrary channels. Also 6
is the control channel.

従来の回線構成において移動局〜移動局間に通
信回線を設定する方法は、発信移動局を２、着信
移動局を３とした場合一般に次の方法が採られ
る。 In a conventional line configuration, the following method is generally used to set up a communication line between mobile stations when there are two originating mobile stations and three terminating mobile stations.

まず、発信移動局の１１の端末から通信要求が
発生すると、１２の制御部でこれを検出して１３
の局部発振器を制御チヤネル周波数とし、通信要
求信号を１４の変調器、１５の周波数変換、１６
の高出力増幅器、１７のアンテナ共用器を経て、
１８のアンテナから送信する。１９の衛星搭載ア
ンテナはこの信号を２０のアンテナ共用器、２１
の受信器に送り、ここで中間周波数に変換する。
さらに２２の送信器で衛星〜基地局リンク無線周
波数に変換し、増幅して２３のアンテナ共用器を
経て２４の衛星搭載アンテナから送信する。制御
チヤネルの信号は２５のアンテナ、２６のアンテ
ナ共用器、２７の共通増幅器、２８の分波器、２
９の周波数変換器、３０の復調器を経て復調され
る。３１の制御部は復調した信号を検出して着信
先が移動局であることを判定し、３の着信移動局
を呼出す呼出信号を３２の変調器、３３の周波数
変換器、３４の合波器、３５の高出力増幅器、２
６のアンテナ共用器を経由して２５のアンテナか
ら制御チヤネルで送信する。また発信移動局には
通信に使用するチヤネルに切替えるチヤンネル切
替え信号を３２，３３，３４，３５，２６，２５
の経路で同様に送信する。２４の衛星搭載アンテ
ナは制御チヤネルを受信し、２３のアンテナ共用
器を経て３６の受信器で中間周波数に変換し、３
７の送信器で衛星〜移動局リンク無線周波数に変
換し、増幅して２０のアンテナ共用器を経て１９
の衛星搭載アンテナから送信する。 First, when a communication request is generated from the 11 terminals of the originating mobile station, the 12 control units detect this and the 13
The local oscillator of 1 is used as the control channel frequency, and the communication request signal is transmitted to the modulator 14, the frequency converter 15, and the frequency converter 16.
After passing through 17 high-power amplifiers and 17 antenna duplexers,
Transmits from 18 antennas. The 19 satellite antennas transmit this signal to the 20 antenna duplexers, 21
is sent to a receiver, where it is converted to an intermediate frequency.
Furthermore, it is converted into a satellite-to-base station link radio frequency by 22 transmitters, amplified, and transmitted from 24 satellite-mounted antennas via 23 antenna duplexers. The control channel signal is transmitted through 25 antennas, 26 antenna duplexers, 27 common amplifiers, 28 branchers, 2
The signal is demodulated through 9 frequency converters and 30 demodulators. The control unit 31 detects the demodulated signal and determines that the destination is a mobile station, and transmits a paging signal for calling the destination mobile station 3 to the modulator 32, the frequency converter 33, and the multiplexer 34. , 35 high power amplifiers, 2
The data is transmitted via a control channel from 25 antennas via 6 antenna duplexers. In addition, the originating mobile station transmits channel switching signals 32, 33, 34, 35, 26, 25 to switch to the channel used for communication.
Send in the same way using the route. 24 satellite antennas receive the control channel, which is converted to an intermediate frequency by 36 receivers via 23 antenna duplexers, and 3
It is converted into a satellite-to-mobile station link radio frequency by the transmitter of 7, amplified, and transmitted through 20 antenna duplexers to the 19
transmitted from satellite antennas.

２の発信移動局は制御チヤネルを１８のアンテ
ナ、１７のアンテナ共用器、３８の増幅器、３９
の周波数変換器、４０の復調器を経て受信し、１
２の制御部は制御チヤネル信号に含まれる自局宛
のチヤネル切替え信号を検出して１３の局部発振
器を制御し、１４の変調器、４０の復調器を切り
替えて、応答信号を通信要求信号と同じ経路で基
地局に送信する。基地局は、指定したチヤネルに
発信移動局が切り替えたことを検出する。なお、
４１は基地局〜移動局間通信チヤネル群復調器で
ある。 The originating mobile station No. 2 has a control channel of 18 antennas, 17 antenna duplexers, 38 amplifiers, and 39
1 frequency converter, 40 demodulators, and 1
The control unit 2 detects the channel switching signal addressed to the own station included in the control channel signal, controls the local oscillator 13, switches the modulator 14 and the demodulator 40, and converts the response signal into a communication request signal. Transmit to the base station using the same route. The base station detects that the originating mobile station has switched to the specified channel. In addition,
41 is a base station-mobile station communication channel group demodulator.

一方、３の着信移動局は制御チヤネルの信号に
含まれる自局宛の呼出信号を検出し、指定された
通信チヤネルで着信応答信号を送信する。基地局
はこれを受信して、着信移動局が呼出されたこと
を検出する。 On the other hand, the receiving mobile station No. 3 detects a paging signal addressed to itself included in the control channel signal, and transmits a paging response signal through the designated communication channel. The base station receives this and detects that the called mobile station has been paged.

基地局は発信移動局、着信移動局の両者が指定
した通信チヤネルから信号を送信していることを
検出したのち、両者が送信している信号を３１の
制御部、４２の変調器、３３の周波数変調器を通
して、それぞれ通信相手局に送り、通信回線の設
定を完了する。 After detecting that both the originating mobile station and the terminating mobile station are transmitting signals from the designated communication channel, the base station transmits the signals transmitted by both to the control unit 31, the modulator 42, and the modulator 33. The signals are sent to each communication partner station through a frequency modulator to complete the communication line settings.

（発明が解決しようとする問題点） 従来は、以上説明したように、移動局〜移動局
間に通信回線を設定する場合、衛星２リンクの通
信回線を設定する方法がとられていたが、この方
法では、移動局と基地局を結ぶ通信回線を２回線
占有するために回線効率が悪く、また基地局〜移
動局間の通信に比較して情報の伝送遅延時間が２
倍になることにより通信品質が劣化する欠点があ
つた。(Problems to be Solved by the Invention) Conventionally, as explained above, when setting up a communication line between mobile stations, a method of setting up a two-link communication line between satellites was used. This method has poor line efficiency because it occupies two communication lines connecting the mobile station and the base station, and the information transmission delay time is 2 times compared to communication between the base station and the mobile station.
There was a drawback that communication quality deteriorated due to doubling.

（問題点を解決するための手段） 本発明はこのような欠点を解決するために、基
地局〜移動局間通信チヤネル群の他に移動局〜移
動局間通信チヤネル群を設け、衛星上に移動局〜
移動局間通信チヤネル群を折り返す構造を持つ中
継器を搭載することにより、基地局に移動局〜移
動局間通信チヤネル群監視用受信機を、また移動
局に通信チヤネル送受信器および制御チヤネル専
用受信器を設けて衛星１リンクで回線を接続する
回線制御方式に関するものである。(Means for Solving the Problems) In order to solve these drawbacks, the present invention provides a group of communication channels between mobile stations and mobile stations in addition to a group of communication channels between base stations and mobile stations, and provides communication channels on the satellite. Mobile station~
By installing a repeater with a structure that loops back communication channels between mobile stations, the base station is equipped with a receiver for monitoring the communication channels between mobile stations and mobile stations, and the mobile station is equipped with a communication channel transceiver and a dedicated receiver for control channels. This relates to a line control system in which a satellite is installed and the line is connected with one satellite link.

（作用） 上述のごとく、移動局と移動局とが１リンクで
結ばれるので、伝送遅延時間が短縮され、かつ衛
星の回線利用効率が向上する。(Function) As described above, since the mobile stations are connected by one link, the transmission delay time is shortened and the satellite line usage efficiency is improved.

（実施例） 第１図は本発明を応用するために必要とする衛
星通信回線構成例であり、４の衛星搭載用中継器
に基地局〜移動局間通信チヤネル群と移動局〜移
動局間通信チヤネル群を分波する４３の分波器、
移動局〜移動局間通信チヤネル群の信号を増幅す
る４４の増幅器、基地局〜移動局間通信チヤネル
群と移動局〜移動局間通信チヤネル群を合波する
４５の合波器を設け、移動局〜移動局間通信チヤ
ネル群の無線信号は４３，４４，４５によつて、
再び１９の衛星搭載アンテナから移動局向けに送
信される構造となつている。また、４６は移動局
〜移動局間通信チヤネル群で、４７，４８はその
任意のチヤネルである。(Embodiment) Fig. 1 shows an example of a satellite communication line configuration required to apply the present invention. 43 demultiplexers that demultiplex communication channels;
44 amplifiers for amplifying the signals of the mobile station-to-mobile station communication channel group and 45 multiplexers for multiplexing the base station-to-mobile station communication channel group and the mobile station-to-mobile station communication channel group are provided. The radio signals of the communication channel group between the station and the mobile station are transmitted by 43, 44, and 45.
Once again, the structure is such that the signals are transmitted to the mobile station from 19 satellite-mounted antennas. Further, 46 is a group of mobile station-to-mobile station communication channels, and 47 and 48 are arbitrary channels thereof.

２の発信移動局の端末から通信要求が発生する
と、発信移動局は制御チヤネルで通信要求信号を
基地局に送り、基地局はこれを検出して着信先が
移動局であることを判定し、空いている任意の移
動局〜移動局通信チヤネルを選ぶ。そして、制御
チヤネルで発信電源幹線にこのチヤネルを指定す
るチヤネル指定信号を送り、また着信移動局には
呼出信号を送る。発信移動局は５４の制御チヤネ
ル専用復調器でチヤネル指定信号を復調し、１３
の局部発振器を駆動して、４７の移動局〜移動局
間通信チヤネルから応答信号を送信する。着信移
動局は同様に制御チヤネル専用復調器で呼出信号
を検出して、局部発振器を駆動し、指定された４
８の移動局〜移動局間通信チヤネルから着信応答
信号を送信する。応答信号および着信応答信号は
１９の衛星搭載アンテナ、２０のアンテナ共用
器、２１の受信器、４３の分波器、４４の増幅
器、４５の合波器、３７の送信器、２０のアンテ
ナ共用器を経て、再び１９の衛星搭載アンテナか
ら送信され、基地局はこれを５３のアンテナ、５
５の共通増幅器、４９の分波器、５０の周波数変
換器、５１の復調器を経て受信し、５２の制御部
によつて監視して、移動局〜移動局間通信チヤネ
ルが設定されたことを確認する。そして両移動局
に通信許可信号を制御チヤネルで送り、移動局は
これを検出して通信を開始する。基地局は通信状
態を５６の移動局〜移動局間通信チヤネル群監視
用受信機で監視を継続し、発信移動局または着信
移動局のいずれかが通信を終了する信号を発する
と、これを検出して、制御チヤネルから両者に通
信終了を指令する信号を送る。移動局はこれを制
御チヤネル専用復調器で復調して通信を終了す
る。 When a communication request is generated from the terminal of the originating mobile station No. 2, the originating mobile station sends a communication request signal to the base station through the control channel, the base station detects this and determines that the destination is the mobile station, Select any available mobile station to mobile station communication channel. Then, a channel designation signal designating this channel is sent to the originating power main line through the control channel, and a paging signal is sent to the terminating mobile station. The originating mobile station demodulates the channel designation signal using 54 control channel dedicated demodulators, and
A response signal is transmitted from the 47 mobile station-to-mobile station communication channels by driving the local oscillator of . Similarly, the receiving mobile station detects the paging signal with a demodulator dedicated to the control channel, drives the local oscillator, and transmits the specified 4
The incoming call response signal is transmitted from the mobile station-to-mobile station communication channel of No. 8. Response signals and incoming response signals are transmitted through 19 satellite-mounted antennas, 20 antenna duplexers, 21 receivers, 43 duplexers, 44 amplifiers, 45 multiplexers, 37 transmitters, and 20 antenna duplexers. After that, it is transmitted again from 19 satellite antennas, and the base station transmits it to 53 antennas and 5
5, a common amplifier 49, a frequency converter 50, a demodulator 51, and a mobile station-to-mobile station communication channel is set by monitoring by the control unit 52. Check. A communication permission signal is then sent to both mobile stations via the control channel, and the mobile stations detect this and start communication. The base station continues to monitor the communication status with 56 mobile station-to-mobile station communication channel group monitoring receivers, and detects when either the originating mobile station or the terminating mobile station issues a signal to end communication. Then, a signal is sent from the control channel to both parties instructing them to terminate communication. The mobile station demodulates this using a control channel dedicated demodulator and terminates the communication.

以上、基地局〜移動局間通信チヤネル群の他に
移動局〜移動局間通信チヤネル群を設け、衛星上
に移動局〜移動局間通信チヤネル群を析り返す構
造を持つ中継器を搭載することを前提とし、基地
局に移動局〜移動局間通信チヤネル群監視用受信
機を、また移動局に通信チヤネル送受信器の他に
制御チヤネル専用受信器を設け、発信移動局から
制御チヤネルで通信要求信号を送信すると、基地
局がこれを検出して移動局〜移動局間通信チヤネ
ルを選定し、発信移動局にはチヤネル指定信号
を、着信移動局には呼出信号を制御チヤネルで送
り、次いで指定した通信チヤネルで移動局が送信
する応答信号、着信応答信号を移動局〜移動局間
通信チヤネル群監視用受信機で受信して、衛星１
リンクの通信路が設定されたことを確認し、監視
を継続して、通信の終了を検出する回線制御方式
について説明した。 As described above, in addition to the base station - mobile station communication channel group, a mobile station - mobile station communication channel group is provided, and a repeater having a structure that repeats the mobile station - mobile station communication channel group is mounted on the satellite. Assuming that, the base station is equipped with a receiver for monitoring a group of communication channels between mobile stations and mobile stations, and the mobile station is equipped with a receiver dedicated to the control channel in addition to the communication channel transceiver. When the request signal is transmitted, the base station detects it and selects a mobile station-to-mobile station communication channel, sends a channel designation signal to the originating mobile station, a paging signal to the terminating mobile station via the control channel, and then The mobile station-to-mobile station communication channel group monitoring receiver receives the response signal and incoming response signal transmitted by the mobile station on the specified communication channel, and transmits the response signal to the satellite 1.
We have described a line control method that confirms that a link communication path has been set up, continues monitoring, and detects the end of communication.

（発明の効果） 以上説明したように、本発明によつて移動局〜
移動局間に衛星１リンクの通信路設定することが
出来、衛星２リンクの通信経路で回線を設定して
いた場合に生ずる500ｍsec以上の信号遅延時間が
１／２に短縮され、基地局〜移動局間通信の信号遅
延時間と同等になる。このため、本発明は移動対
応の衛星通信を対象とした移動局〜移動局間電話
サービスに応用して、通話品質を基地局〜移動局
間通信と同等に維持する効果があり、また移動局
〜移動局間高速データ通信サービス、高速フアク
シミリサービス等メツセージ通信サービスに応用
して、伝送効率向上に寄与する。(Effects of the Invention) As explained above, the present invention allows mobile stations to
It is possible to set up a communication path with one satellite link between mobile stations, and the signal delay time of 500 msec or more that would occur if the line was set up with a two-satellite link communication path is reduced to half, allowing the communication between the base station and the mobile station. This is equivalent to the signal delay time of inter-office communication. Therefore, the present invention can be applied to a mobile station-to-mobile station telephone service for mobile-compatible satellite communications, and has the effect of maintaining call quality equivalent to that of base station-to-mobile station communication. - Contributes to improved transmission efficiency by applying to message communication services such as high-speed data communication services between mobile stations and high-speed facsimile services.

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

第１図は本発明を応用するために必要な衛星通
信回線の構成例、第２図は従来の衛星通信回線の
構成例である。 １……基地局、２，３……移動局、４……衛星
搭載用中継器、５……基地局〜移動局間通信チヤ
ネル群、６……制御チヤネル、７，８……５の任
意の通信チヤネル、１１……端末、１２……制御
部、１３……局部発振器、１４……変調器、１５
……周波数変換器、１６……高出力増幅器、１７
……アンテナ共用器、１８……アンテナ、１９…
…衛星搭載アンテナ、２０……アンテナ共用器、
２１……受信器、２２……送信器、２３……アン
テナ共用器、２４……衛星搭載アンテナ、２５…
…アンテナ、２６……アンテナ共用器、２７……
共通増幅器、２８……分波器、２９……周波数変
換器、３０……復調器、３１……制御部、３２…
…変調器、３３……周波数変換器、３４……合波
器、３５……高出力増幅器、３６……受信器、３
７……送信器、３８……増幅器、３９……周波数
変換器、４０……復調器、４１……基地局〜移動
局間通信チヤネル群復調器、４２……変調器、４
３……分波器、４４……増幅器、４５……合波
器、４６……移動局〜移動局間通信チヤネル群、
４７，４８……４６の任意のチヤネル、４９……
分波器、５０……周波数変換器、５１……復調
器、５２……制御部、５３……アンテナ、５４…
…制御チヤネル専用受信器、５５……共通増幅
器、５６……移動局〜移動局間通信チヤネル群監
視用受信器。 FIG. 1 shows an example of the configuration of a satellite communication line necessary for applying the present invention, and FIG. 2 shows an example of the configuration of a conventional satellite communication line. 1...Base station, 2, 3...Mobile station, 4...Satellite onboard repeater, 5...Base station-mobile station communication channel group, 6...Control channel, 7, 8...Any of 5 communication channel, 11...terminal, 12...control unit, 13...local oscillator, 14...modulator, 15
...Frequency converter, 16...High output amplifier, 17
...Antenna duplexer, 18...Antenna, 19...
...Satellite antenna, 20...Antenna duplexer,
21... Receiver, 22... Transmitter, 23... Antenna duplexer, 24... Satellite-mounted antenna, 25...
...Antenna, 26...Antenna duplexer, 27...
common amplifier, 28... duplexer, 29... frequency converter, 30... demodulator, 31... control section, 32...
... Modulator, 33 ... Frequency converter, 34 ... Multiplexer, 35 ... High output amplifier, 36 ... Receiver, 3
7... Transmitter, 38... Amplifier, 39... Frequency converter, 40... Demodulator, 41... Base station to mobile station communication channel group demodulator, 42... Modulator, 4
3... Duplexer, 44... Amplifier, 45... Multiplexer, 46... Mobile station to mobile station communication channel group,
47, 48...46 arbitrary channels, 49...
Duplexer, 50... Frequency converter, 51... Demodulator, 52... Control unit, 53... Antenna, 54...
. . . Control channel dedicated receiver, 55 . . . Common amplifier, 56 . . . Mobile station-to-mobile station communication channel group monitoring receiver.

Claims (1)

【特許請求の範囲】[Claims] １ 基地局〜移動局間通信チヤネル群の他に移動
局〜移動局間の直接通信チヤネル群を有する移動
衛星通信の回線制御方式において、基地局〜移動
局間に１対の制御チヤネルを持つ移動体対応の衛
星通信回線をもうけ、通信チヤネル用送受信器と
制御チヤネル専用受信器を有する任意の移動局が
送信する通信要求信号を基地局で検出し、着信先
が移動局の時は移動局〜移動局間通信チヤネル群
の任意の１チヤネルを選定し、次いで発信移動局
にその該当チヤネルを通知するとともに、着信移
動局を呼出し、該当チヤネルを指定して、双方の
移動局が基地局の選定したチヤネルに切り替えた
ことを基地局に設けた移動局〜移動局間通信監視
用受信機で確認した後に通信を許可して移動局〜
移動局間通信を行い、また通信の終了を移動局〜
移動局間通信監視用受信機で監視制御することを
特徴とする移動衛星通信の回線制御方式。1. In a mobile satellite communication line control system that has a group of direct communication channels between a mobile station and a mobile station in addition to a group of communication channels between a base station and a mobile station, a mobile satellite communication system that has a pair of control channels between a base station and a mobile station The base station detects a communication request signal transmitted by any mobile station that has a satellite communication line compatible with the mobile station and has a communication channel transceiver and a control channel dedicated receiver, and when the destination is a mobile station, the mobile station ~ Select any one channel from the group of inter-mobile station communication channels, then notify the originating mobile station of the channel, call the destination mobile station, specify the channel, and both mobile stations select the base station. The mobile station installed in the base station confirms that the mobile station has switched to the selected channel using the inter-mobile station communication monitoring receiver, and then allows communication and the mobile station
Performs communication between mobile stations, and terminates communication between mobile stations
A line control method for mobile satellite communication characterized by monitoring and controlling using a receiver for monitoring communication between mobile stations.
JP59183763A 1984-09-04 1984-09-04 System for controlling line of mobile satellite communication Granted JPS6162243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59183763A JPS6162243A (en) 1984-09-04 1984-09-04 System for controlling line of mobile satellite communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59183763A JPS6162243A (en) 1984-09-04 1984-09-04 System for controlling line of mobile satellite communication

Publications (2)

Publication Number Publication Date
JPS6162243A JPS6162243A (en) 1986-03-31
JPH0213497B2 true JPH0213497B2 (en) 1990-04-04

Family

ID=16141543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59183763A Granted JPS6162243A (en) 1984-09-04 1984-09-04 System for controlling line of mobile satellite communication

Country Status (1)

Country Link
JP (1) JPS6162243A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4995106B2 (en) * 2008-01-28 2012-08-08 三菱電機株式会社 Mobile communication system

Also Published As

Publication number Publication date
JPS6162243A (en) 1986-03-31

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