JPH0113255B2 - - Google Patents
Info
- Publication number
- JPH0113255B2 JPH0113255B2 JP58021681A JP2168183A JPH0113255B2 JP H0113255 B2 JPH0113255 B2 JP H0113255B2 JP 58021681 A JP58021681 A JP 58021681A JP 2168183 A JP2168183 A JP 2168183A JP H0113255 B2 JPH0113255 B2 JP H0113255B2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- mobile
- line
- mobile device
- control device
- 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
Links
- 238000004891 communication Methods 0.000 claims description 26
- 238000010586 diagram Methods 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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
Description
【発明の詳細な説明】
本発明は、移動電話方式において、通話中の移
動機の通話チヤネルを周期的または非周期的に随
時切り替えることにより、他からの通話傍受を困
難にする秘話機能付移動電話方式に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION In a mobile telephone system, the present invention provides a mobile phone with a secret function that makes it difficult for others to intercept a call by periodically or aperiodically switching the call channel of a mobile device during a call. It concerns the telephone system.
従来の移動電話方式においては、移動機が一般
電話あるいは他の移動機と通話中に使用する無線
通話チヤネルは、当該移動機が同一無線ゾーン内
にとどまる限り、同一であるように設計されてい
たため、該移動機の送受信用周波数帯と同じ周波
数帯を受信可能な受信機を用い、該受信機を移動
機の使用している通話チヤネルに一度同調させる
ことにより、通話の傍受が容易に可能であり、こ
のため第３者によつて通話の秘密が侵され易いと
いう欠点があつた。 In conventional mobile telephone systems, the wireless channel used by a mobile device during a call with a landline telephone or other mobile device was designed to remain the same as long as the mobile device remained within the same wireless zone. By using a receiver capable of receiving the same frequency band as the transmitting and receiving frequency band of the mobile device and once tuning the receiver to the communication channel used by the mobile device, it is possible to easily intercept calls. Therefore, there was a drawback that the secrecy of the telephone conversation could easily be compromised by a third party.
本発明は、このような従来技術の欠点を解決す
るためになされたものであり、従つて本発明の目
的は、通信の秘密が第３者によつて侵されるのを
困難にした移動電話方式を提供することにある。 The present invention has been made in order to solve the drawbacks of the prior art, and therefore, an object of the present invention is to provide a mobile telephone system that makes it difficult for a third party to violate the confidentiality of communications. Our goal is to provide the following.
本発明の構成の要点は、複数の通話チヤネルを
選択的に使用して通話することの可能な移動機
と、該移動機や使用する通話チヤネルの接続制御
を行う制御装置とを含む移動電話方式において、
移動機の通話中にその通話チヤネルを前記制御装
置によつて周期的又は非周期的に他の通話チヤネ
ルへ切り替えるようにした点にある。 The gist of the configuration of the present invention is a mobile telephone system that includes a mobile device that can selectively use a plurality of communication channels to make a call, and a control device that controls the connection of the mobile device and the communication channels used. In,
The present invention is characterized in that while the mobile device is talking, the communication channel is switched to another communication channel periodically or aperiodically by the control device.
次に図を参照して本発明の一実施例を説明す
る。図は本発明の一実施例を示すブロツク図であ
る。同図において、１は移動機、２，３はそれぞ
れ無線基地局、４は無線回線制御装置、５は移動
電話交換器、６はデータ転送装置、７はチヤネル
切換制御装置、８はメモリ、９，１０，１１はそ
れぞれ制御回路、１２，１３はそれぞれ無線ゾー
ン、１４，１５，１６はそれぞれ無線通話チヤネ
ル、１７，１８，１９は各々通話チヤネル１４，
１５，１６に１対１に対応した通話回線である。 Next, an embodiment of the present invention will be described with reference to the drawings. The figure is a block diagram showing one embodiment of the present invention. In the figure, 1 is a mobile device, 2 and 3 are radio base stations, 4 is a radio line control device, 5 is a mobile telephone exchange, 6 is a data transfer device, 7 is a channel switching control device, 8 is a memory, and 9 , 10, 11 are control circuits, 12, 13 are wireless zones, 14, 15, 16 are wireless communication channels, 17, 18, 19 are communication channels 14, 19, respectively.
15 and 16 on a one-to-one basis.
移動機１が、無線ゾーン１２内で無線通話チヤ
ネル１４を使用し無線基地局２、通話回線１７、
移動電話交換機５を経由して図示せざる一般電話
と通話中であるとする。 A mobile device 1 uses a wireless communication channel 14 within a wireless zone 12 to communicate with a wireless base station 2, a communication line 17,
Assume that a call is being made to a general telephone (not shown) via the mobile telephone exchange 5.
メモリ８は、移動電話交換機５と接続されてい
る無線基地局２，３が使用可能な無線通話チヤネ
ル１４，１５，１６の空塞データを蓄積してい
る。チヤネル切替制御装置７は、メモリ８をアク
セスしてチヤネル空塞データを受信し、周期的ま
たは非周期的に移動電話交換機５を起動し、通話
中の無線通話チヤネル１４と通話回線１７を、空
無線通話チヤネル１５と空通話回線１８に切り替
えるよう指令する。 The memory 8 stores the blockage data of the radio communication channels 14, 15, 16 that can be used by the radio base stations 2, 3 connected to the mobile telephone exchange 5. The channel switching control device 7 accesses the memory 8 to receive channel idle data, periodically or aperiodically activates the mobile telephone exchange 5, and switches the currently active wireless communication channel 14 and the communication line 17 to the idle state. A command is given to switch to the wireless communication channel 15 and the idle communication line 18.
チヤネル切替制御装置７により起動された移動
電話交換機５は、チヤネル切替に伴う新・旧無線
通話チヤネル番号と、通話回線１８の導通試験準
備指令をデータ転送装置６により制御回線９、無
線回線制御装置４、制御回線１０を経由し無線基
地局２に送出する。移動電話交換機５は、無線基
地局２との間で通話回線１８の導通試験を行い、
その完了信号と、無線通話チヤネル切替指令を無
線基地局２に制御回線９、無線回線制御装置４、
制御回線１０経由で送出する。 The mobile telephone exchange 5 activated by the channel switching control device 7 transfers the new and old wireless communication channel numbers associated with channel switching and a continuity test preparation command for the communication line 18 to the control line 9 and the radio line control device via the data transfer device 6. 4. Send to the wireless base station 2 via the control line 10. The mobile telephone exchange 5 performs a continuity test on the telephone line 18 with the radio base station 2,
The completion signal and the wireless communication channel switching command are sent to the wireless base station 2 through the control line 9, the wireless line controller 4,
It is transmitted via the control line 10.
無線基地局２では、移動機１に対して使用中の
無線通話チヤネル１４を新無線通話チヤネル１５
に切り替えるよう指令し、切替後導通試験を行
い、その完了信号を制御回線１０、無線回線制御
装置４、制御回線９、データ転送装置６を経由し
移動電話交換機５に送出する。完了信号を受信し
た移動電話交換機５は、旧通話回線１７を新通話
回線１８に切り替え、切替完了となる。その後、
移動電話交換機５は切替終了情報をチヤネル切替
制御装置７に送出する。チヤネル切替制御装置７
はメモリ８の内容を更新する。 The wireless base station 2 converts the currently used wireless communication channel 14 to the new wireless communication channel 15 for the mobile device 1.
After switching, a continuity test is performed, and a completion signal is sent to the mobile telephone exchange 5 via the control line 10, radio line control device 4, control line 9, and data transfer device 6. The mobile telephone exchange 5, which has received the completion signal, switches the old telephone line 17 to the new telephone line 18, and the switching is completed. after that,
Mobile telephone exchange 5 sends switching completion information to channel switching control device 7. Channel switching control device 7
updates the contents of memory 8.
また、その後移動機１が無線ゾーン１２から無
線ゾーン１３に移動した場合は、すでにサービス
提供中である現用の方式と同様に通話中チヤネル
切替を行い、移動機１は無線通話チヤネル１６、
無線基地局３、通話回線１９を経由して移動電話
交換機５に接続される。切替完了後、新旧チヤネ
ルデータは、無線回線制御装置４から、制御回線
９、データ転送装置６を経て移動電話交換機５に
送られ、チヤネル切替制御装置７によりメモリ８
内のチヤネル空塞データの更新がおこなわれる。 Furthermore, when the mobile device 1 subsequently moves from the wireless zone 12 to the wireless zone 13, the active channel is switched in the same way as in the current system where the service is already being provided, and the mobile device 1 switches to the wireless communication channel 16,
It is connected to a mobile telephone exchange 5 via a radio base station 3 and a telephone line 19. After the switching is completed, the old and new channel data is sent from the radio line control device 4 to the mobile telephone exchange 5 via the control line 9 and the data transfer device 6, and is stored in the memory 8 by the channel switching control device 7.
The channel vacancy data within is updated.
以上説明したように、本発明は、移動通信方式
において、通話チヤネルを周期的または非周期的
に他のチヤネルに切り替えながら通話を行う方式
であるから、移動機の送受信用周波数帯と同じ周
波数帯を受信可能な受信機を用いても、該移動機
の使用している通話チヤネルの切替に応じて頻繁
に受信機の受信周波数を同調させる必要があるな
ど、第３者による通話の傍受を困難とし、それに
より通話の秘密を守り得るという利点がある。 As explained above, the present invention is a mobile communication system in which a call is made while periodically or aperiodically switching a call channel to another channel, so the present invention uses the same frequency band as the transmitting/receiving frequency band of the mobile device. Even if a receiver capable of receiving calls is used, it is difficult for a third party to intercept calls, as it is necessary to frequently tune the receiving frequency of the receiver depending on the switching of the call channel used by the mobile device. This has the advantage of keeping the conversation confidential.
図は本発明の一実施例を示すブロツク図であ
る。
符号説明 １……移動機、２，３……無線基地
局、４……無線回線制御装置、５……移動電話交
換機、６……データ転送装置、７……チヤネル切
替制御装置、８……メモリ、９，１０，１１……
制御回線、１２，１３……無線ゾーン、１４，１
５，１６……無線通話チヤネル、１７，１８，１
９……通話回線。
The figure is a block diagram showing one embodiment of the present invention. Explanation of symbols 1...Mobile device, 2, 3...Radio base station, 4...Radio line control device, 5...Mobile telephone exchange, 6...Data transfer device, 7...Channel switching control device, 8... Memory, 9, 10, 11...
Control line, 12, 13...Wireless zone, 14, 1
5, 16... Wireless communication channel, 17, 18, 1
9...Telephone line.
Claims (1)
することの可能な移動機と、該移動機が使用する
通話チヤネルの接続制御を行う制御装置とを含む
移動電話方式において、移動機の通話中にその通
話チヤネルを前記制御装置によつて周期的又は非
周期的に他の通話チヤネルへ切り替えるようにし
たことを特徴とする秘話機能付移動電話方式。1. In a mobile telephone system that includes a mobile device that can selectively use a plurality of communication channels to make a call, and a control device that controls the connection of the communication channels used by the mobile device, when the mobile device is making a call, 1. A mobile telephone system with a private conversation function, characterized in that the control device periodically or aperiodically switches the communication channel to another communication channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58021681A JPS59148439A (en) | 1983-02-14 | 1983-02-14 | Mobile telephone system with privacy call function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58021681A JPS59148439A (en) | 1983-02-14 | 1983-02-14 | Mobile telephone system with privacy call function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59148439A JPS59148439A (en) | 1984-08-25 |
| JPH0113255B2 true JPH0113255B2 (en) | 1989-03-06 |
Family
ID=12061800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58021681A Granted JPS59148439A (en) | 1983-02-14 | 1983-02-14 | Mobile telephone system with privacy call function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59148439A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04101527A (en) * | 1990-08-20 | 1992-04-03 | Mitsubishi Electric Corp | Privacy communication apparatus |
| JP2007180659A (en) * | 2005-12-27 | 2007-07-12 | Kyocera Corp | Wireless communication method, information distribution apparatus and wireless communication terminal |
-
1983
- 1983-02-14 JP JP58021681A patent/JPS59148439A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59148439A (en) | 1984-08-25 |
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