JPH0819042A - Warning system for speech interruption - Google Patents
Warning system for speech interruptionInfo
- Publication number
- JPH0819042A JPH0819042A JP6144426A JP14442694A JPH0819042A JP H0819042 A JPH0819042 A JP H0819042A JP 6144426 A JP6144426 A JP 6144426A JP 14442694 A JP14442694 A JP 14442694A JP H0819042 A JPH0819042 A JP H0819042A
- Authority
- JP
- Japan
- Prior art keywords
- mobile equipment
- bit error
- error rate
- mobile device
- call
- 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.)
- Granted
Links
Landscapes
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、通話切れ警告システム
に関し、特に移動機より送られてくるビット誤り率を検
出し、この値があるしきい値を越えると、移動機とその
通話相手である電話機（あるいは移動機）の双方に警告
音を出す通話切れ警告システム、及びかかるシステムに
用いられる移動機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call disconnect warning system, and more particularly, to detecting a bit error rate sent from a mobile unit, and when this value exceeds a certain threshold value, the mobile unit and the other party of the call communicate with each other. The present invention relates to an out-of-call warning system that outputs a warning sound to both a telephone (or a mobile device) and a mobile device used in such a system.
【０００２】[0002]
【従来技術】デジタルセルラ通信方式は、各地に設置し
た複数の基地局毎に地域が区分けされ、それぞれの基地
局を中心として通信が可能な使用範囲が定められてお
り、使用者がサービスエリア外に移動して、基地局から
のデータを移動機が受信できなくなると、ビット誤り率
が上がり音声が復調できずに通話が中断されてしまう。
したがって、使用者はサービスエリア外へ出ないように
注意するか、中断する以前に通話を終了させる必要があ
る。2. Description of the Related Art In a digital cellular communication system, an area is divided into a plurality of base stations installed in various places, and a usable range in which communication is possible is defined around each base station. If the mobile device cannot move to the mobile station and cannot receive the data from the base station, the bit error rate increases and the voice cannot be demodulated and the call is interrupted.
Therefore, the user must be careful not to go out of the service area or terminate the call before the interruption.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
デジタルセルラ通信方式では、サービスエリア境界など
で、移動機が通話中に基地局から送られてくるデータを
受信できなくなり、通話が切れてしまうことを、移動機
の利用者及びその通話相手は知ることができなかった。
そのように、移動機の状態を移動機の利用者及びその通
話相手が知ることができなかっため、通話が突然終わっ
てしまい、移動機の利用者及びその通話相手は互いに十
分なコミュニケーションがとれず、再びエリア内に戻っ
て掛け直すか、あるいは改めて他の通信手段によって通
話するしかなかった。However, in the conventional digital cellular communication system, at the boundary of the service area, the mobile station cannot receive the data sent from the base station during the call and the call is disconnected. Could not be known to the user of the mobile device and the other party.
As such, since the user of the mobile device and the call partner cannot know the state of the mobile device, the call suddenly ends, and the user of the mobile device and the call partner cannot communicate with each other sufficiently. , I had no choice but to return to the area again and call again, or to make another call by another communication means.
【０００４】本発明は、デジタルセルラ通信方式を使用
する移動機において、サービスエリア境界などで、この
移動機が通話中に、データを受信出来なくなり、ビット
誤り率が上がり音声を復調できずに、通話が突然切れ
て、十分なコミュニケーションがとれなくなることの防
止を目的とする。According to the present invention, in a mobile device using the digital cellular communication system, at the boundary of a service area, the mobile device cannot receive data during a call, the bit error rate increases, and voice cannot be demodulated. The purpose is to prevent sudden disconnection of the call, resulting in loss of sufficient communication.
【０００５】[0005]
【課題を解決するための手段】本発明の通話切れ警告シ
ステムは、上記目的を解決するため、基地局が移動機よ
り送られてくるビット誤り率を検出し、検出されたビッ
ト誤り率があるしきい値を超えると、移動機の利用者及
び通話相手に警告音を出すことにより通話が切れそうな
状態にあることを双方に知らせるようにした。また、請
求項２では、エリア外に移動する側がどちらであるのか
の信号を通話遮断の警告音ととも発することとした。請
求項３としては、警告音を発した後通話を遮断するよう
にした。請求項４としては、移動機に、かかるシステム
の警告受信手段を備えることとした。In order to solve the above-mentioned problems, a call disconnection warning system of the present invention detects a bit error rate sent from a mobile station by a base station and detects the bit error rate. When the threshold is exceeded, a warning sound is emitted to the user of the mobile device and the other party to inform both parties that the call is about to be cut off. Further, in claim 2, a signal indicating which side is moving to the outside of the area is emitted together with a warning sound for call blocking. In claim 3, the call is cut off after the warning sound is emitted. As a fourth aspect, the mobile device is provided with a warning receiving unit of such a system.
【０００６】[0006]
【実施例】本発明にかかる通話切れ警告システムの一実
施例について図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a call disconnection warning system according to the present invention will be described with reference to the drawings.
【０００７】図１は、本発明の一実施例を示すブロック
図である。図１において、移動機１、移動機３、及び基
地局４は、デジタルセルラ通信方式システムにおいて用
いられる移動機、及び基地局である。又、電話機２は、
基地局４と公衆電話回線Ｌによって接続されている電話
機である。FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, a mobile device 1, a mobile device 3, and a base station 4 are a mobile device and a base station used in a digital cellular communication system. Also, the telephone 2
It is a telephone connected to the base station 4 by a public telephone line L.
【０００８】基地局４の内部には、移動機１や移動機３
より送られてくるデータの受信及び復号を行なう受信部
４１と、受信部４１が受信したデータの中からビット誤
り率の検出を行うビット誤り率検出部４３と、任意のし
きい値を記憶しているしきい値記憶部４４と、ビット誤
り率検出部４３で検出されたビット誤り率の値と、しき
い値記憶部４４に記憶されているしきい値とを比較し、
ビット誤り率の値がしきい値を越えていた場合に制御部
４６に制御信号を出力する比較器４５と、比較器４５か
ら出力された制御信号を受けると、公衆電話回線Ｌ及び
送信部４２のそれぞれの端末に警告音を発する制御部４
６等が設置されている。Inside the base station 4, the mobile unit 1 and the mobile unit 3 are installed.
The receiving unit 41 that receives and decodes the data sent from it, the bit error rate detecting unit 43 that detects the bit error rate from the data received by the receiving unit 41, and an arbitrary threshold value are stored. The threshold value storage unit 44, the value of the bit error rate detected by the bit error rate detection unit 43, and the threshold value stored in the threshold value storage unit 44 are compared,
When the comparator 45 outputs a control signal to the controller 46 when the value of the bit error rate exceeds the threshold value, and the control signal output from the comparator 45 is received, the public telephone line L and the transmitter 42 are received. Control unit 4 which issues a warning sound to each terminal of
6th class is installed.
【０００９】また移動機１等には、基地局４から発せら
れる警告音を受信し、使用者に報知する警告受信手段
（図示せず）を備えている。Further, the mobile device 1 and the like are provided with a warning receiving means (not shown) for receiving a warning sound emitted from the base station 4 and notifying the user.
【００１０】次に、通話切れ警告システムの動作につい
て図２のフローチャートを参照して説明する。Next, the operation of the call disconnection warning system will be described with reference to the flowchart of FIG.
【００１１】まず移動機１と、電話機２が、基地局４を
介して通話状態にあるとき、基地局４は移動機１に対し
他チャネルの電解強度を測定するよう命令を出す。移動
機１は、この命令に対して指定されたチャネルの電解強
度の情報と、受信データのビット誤り率を基地局４に送
信する。基地局４は移動機１から送られてくるデータ
を、受信部４１にて受信し復号する。First, when the mobile station 1 and the telephone set 2 are in a call state via the base station 4, the base station 4 issues a command to the mobile station 1 to measure the electrolytic strength of another channel. The mobile device 1 transmits to the base station 4 the information on the field strength of the channel designated by this command and the bit error rate of the received data. The base station 4 receives and decodes the data sent from the mobile device 1 by the receiving unit 41.
【００１２】受信器４１が復号したデータから、ビット
誤り率検出部４３にてビット誤り率を検出し（Ｆ−
１）、この値としきい値記憶部４４に記憶しているしき
い値の値を比較器４５にて比較する（Ｆ−２）。この時
ビット誤り率検出部４３にて検出されたビット誤り率の
値が、しきい値記憶部４４に記憶されていたしきい値を
越えていた場合、その旨の信号が比較器４５から制御部
４６に送られる。しきい値を超えた旨の信号が制御部４
６に送られると制御部４６は、公衆電話回線Ｌ、及び送
信部４２を制御し、移動機１とその通話相手である電話
機２の双方に警告音を発するよう信号を送る。（Ｆ−
３）。この信号を受けた移動機１及び電話機２は警告音
を発する。From the data decoded by the receiver 41, the bit error rate detector 43 detects the bit error rate (F-
1) The comparator 45 compares this value with the threshold value stored in the threshold storage unit 44 (F-2). At this time, if the value of the bit error rate detected by the bit error rate detection unit 43 exceeds the threshold value stored in the threshold value storage unit 44, a signal to that effect is sent from the comparator 45 to the control unit. Sent to 46. The control unit 4 receives a signal indicating that the threshold value has been exceeded.
6, the control unit 46 controls the public telephone line L and the transmission unit 42, and sends a signal to both the mobile device 1 and the telephone 2 which is the other party of the call so as to emit a warning sound. (F-
3). The mobile device 1 and the telephone 2 which receive this signal emit a warning sound.
【００１３】そして、更に基地局４では通話状態が遮断
条件に達したか否かを判別し（Ｆ−４）、達していない
場合には（Ｆ−１）に戻り、達したと判断された場合に
は、通話は遮断される（Ｆ−５）。尚、遮断条件はビッ
ト誤り率に限らず、電界強度等の測定によるものでもよ
い。Then, the base station 4 further determines whether or not the call state has reached the cutoff condition (F-4), and if not reached, returns to (F-1) to determine that it has been reached. In this case, the call is cut off (F-5). The cutoff condition is not limited to the bit error rate, but may be based on measurement of the electric field strength or the like.
【００１４】また、移動機１と移動機３が通話中の場合
にも、双方から前述したように電界強度を検出し、少な
くともいずれか一方の移動機の電界強度の値がしきい値
を超えている場合には、送信部４２から移動機１と移動
機３のそれぞれに警告音が発せられる。Further, even when the mobile device 1 and the mobile device 3 are talking, the electric field strength is detected from both of them as described above, and the value of the electric field strength of at least one of the mobile devices exceeds the threshold value. If so, the transmitter 42 issues a warning sound to each of the mobile device 1 and the mobile device 3.
【００１５】このように警告音が発せられることによ
り、移動している場合にはその移動を一時中断するか、
通話時間の残り時間を考慮して、通話が基地局４からの
指示によって遮断される前に通話を自ら終了させて、通
話が途中で遮断されることを防止することができる。When a warning sound is emitted as described above, if the user is moving, the movement is temporarily interrupted, or
In consideration of the remaining time of the call time, it is possible to prevent the call from being interrupted by ending the call before the call is interrupted by the instruction from the base station 4.
【００１６】次に、他の実施例について述べる。基地局
４は、上記構成に加え、通話中のいずれの移動機がサー
ビスエリア外に移動するのか判別する判別手段（図示せ
ず）と、前記通話遮断の警告を発するとともに、遮断の
原因側に原因である旨を報知する報知手段とを備えてい
る。Next, another embodiment will be described. In addition to the above-mentioned configuration, the base station 4 determines the mobile device in the call moving out of the service area by a determination means (not shown), issues the call disconnection warning, and informs the disconnection cause side. And a notifying means for notifying the cause.
【００１７】したがって、通話が移動機１と移動機３と
の間で行なわれている場合に、移動機１の使用者が基地
局４のサービスエリア外に移動してしまうとき、基地局
４の判別手段は、移動機１のビット誤り率から移動機１
がサービスエリア外に移動してしまうことが判別でき
る。そのときには、移動機１と移動機３の双方に通話遮
断の警告音を前述したように発するとともに、移動機１
には、通話の遮断がかかる移動機１が原因である旨の信
号を発する。Therefore, when a user of the mobile station 1 moves out of the service area of the base station 4 while a call is being made between the mobile station 1 and the mobile station 3, The determining means determines the mobile device 1 from the bit error rate of the mobile device 1.
Can be determined to move out of the service area. At that time, the mobile phone 1 and the mobile device 3 both issue the call disconnect warning sound as described above, and the mobile device 1
, A signal indicating that the cause is the mobile device 1 that blocks the call is issued.
【００１８】このように通話遮断の警告音とともに遮断
原因を知らせる信号が発せられることにより、通話の遮
断原因がわかり、原因側は移動を中止するなど原因への
対応を採り易くなる。また遮断原因が移動機１にある場
合に、移動機３の側にも原因は移動機１であることを発
してもよい。このようにすることにより、移動機３側で
は、自己が原因でないことがわかり、無駄な対応を防止
できる。As described above, the signal for notifying the cause of the call is issued together with the warning sound of the call interruption, and the cause of the call interruption can be known, and the cause can easily take action such as stopping the movement. In addition, when the cause of interruption is the mobile device 1, the cause of the mobile device 3 may be the mobile device 1 as well. By doing so, it is possible for the mobile device 3 side to know that it is not the cause, and prevent unnecessary measures.
【００１９】[0019]
【発明の効果】本発明による通話切れ警告システムは、
デジタルセルラ通信方式を使用する移動機において、基
地局が移動機より送られてくるビット誤り率を検出し、
検出したビット誤り率がある所定のしきい値をこえる
と、移動機とその通話相手である電話機、あるいは移動
機の双方に警告音を出すこととしたので、サービスエリ
ア境界などで、移動機が通話中にデータを受信できなく
なり、ビット誤り率が上がり音声を復調できずに、通話
が切れてしまう前に、移動機の利用者及び通話相手に通
話が遮断されそうな状態にあることを知らせることがで
きる。このため、通話者は、遮断の原因となる移動を中
止したり、または通話が突然遮断される前に通話を自ら
終了させることができ、移動機によるコミュニケーショ
ンが不十分なものとなることを防止できる。The call disconnect warning system according to the present invention,
In a mobile device using a digital cellular communication system, the base station detects the bit error rate sent from the mobile device,
When the detected bit error rate exceeds a certain threshold value, a warning sound is output to both the mobile device and the telephone that is the other party of the call, or to the mobile device. Before the call is cut off because the data cannot be received during the call, the bit error rate increases and the voice cannot be demodulated, the mobile device user and the other party are notified that the call is about to be cut off. be able to. Therefore, the caller can stop the movement that causes the interruption or end the call before the call is suddenly interrupted, preventing the communication by the mobile device from becoming insufficient. it can.
【００２０】また、データを受信できなくなった側の移
動機を検出し、かかる移動機へその旨の信号を発するこ
ととしたので、かかる信号を受けた使用者は自己が原因
であることの確認ができ、移動を中止したりして通話の
遮断を防止することができる。Further, since the mobile unit on the side that cannot receive data is detected and a signal to that effect is issued to the mobile unit, the user who receives the signal confirms that the cause is himself. It is possible to prevent the interruption of the call by stopping the movement.
【００２１】通話の遮断は必ず警告音が発せられた後に
なされるので、突然の遮断がなくなる。Since the interruption of the call is always performed after the warning sound is emitted, the sudden interruption is eliminated.
【００２２】また警告受信手段を有する移動機によれ
ば、上記システムにおいて警告を受信し、有効に利用で
きる。Further, according to the mobile device having the warning receiving means, the warning can be received and effectively used in the above system.
【図１】本発明による通話切れ警告システムの一実施例
を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a call disconnection warning system according to the present invention.
【図２】本発明による通話切れ警告システムの動作の一
例を示すフローチャートである。FIG. 2 is a flowchart showing an example of the operation of the call disconnection warning system according to the present invention.
１ 移動機 ２ 電話機 ３ 移動機 ４ 基地局 ４１ 受信部 ４２ 送信部 ４３ ビット誤り率検出部 ４４ しきい値記憶部 ４５ 比較器 ４６ 制御部 Ｌ 電話回線 1 mobile device 2 telephone 3 mobile device 4 base station 41 receiving unit 42 transmitting unit 43 bit error rate detecting unit 44 threshold value storing unit 45 comparator 46 control unit L telephone line
Claims (4)
システムにおいて、移動機の送信するデータからビット
誤り率を検出する検出部と、 任意のしきい値を記憶する記憶部と、 前記検出部により検出されたビット誤り率と、前記記憶
部に記憶されているしきい値とを比較する比較部と、 前記比較部によりビット誤り率が所定のしきい値を越え
た場合に、前記移動機及び該移動機の通信相手の双方に
警告音を出すように制御する制御部とを有する通話切れ
警告システム。1. In a communication system using a digital cellular communication system, a detection unit for detecting a bit error rate from data transmitted by a mobile device, a storage unit for storing an arbitrary threshold value, and detection by the detection unit. A comparing unit that compares the generated bit error rate with a threshold value stored in the storage unit; and if the comparing unit causes the bit error rate to exceed a predetermined threshold value, A call disconnection warning system having a control unit for controlling a warning sound to both parties of a mobile device.
ト誤り率が所定のしきい値を越えた移動機がいずれであ
るかを判定する判定手段を備え、前記制御手段は前記ビ
ット誤り率がしきい値を超えた側がどちらの移動機であ
るかを知らせる信号を、前記警告音とともに送出するこ
とを特徴とする請求項１に記載の通話切れ警告システ
ム。2. Both of the mobile terminals that are talking are mobile terminals, and the mobile terminal has a judgment means for judging which mobile terminal has a bit error rate exceeding a predetermined threshold, and the control means has the bit error rate. 2. The call disconnection warning system according to claim 1, wherein a signal indicating which mobile device is the one whose rate exceeds the threshold value is transmitted together with the warning sound.
するようにした請求項１または２に記載の通話切れ警告
システム。3. The call disconnection warning system according to claim 1, wherein the call is cut off after the warning sound is emitted.
て用いられる移動機であって、基地局から通話切れの警
告を受信する警告受信手段を備えたことを特徴とする移
動機。4. A mobile device used in the call disconnection warning system according to claim 1, further comprising a warning receiving means for receiving a call disconnection warning from a base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6144426A JP2545764B2 (en) | 1994-06-27 | 1994-06-27 | Call dead alert system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6144426A JP2545764B2 (en) | 1994-06-27 | 1994-06-27 | Call dead alert system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0819042A true JPH0819042A (en) | 1996-01-19 |
| JP2545764B2 JP2545764B2 (en) | 1996-10-23 |
Family
ID=15361919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6144426A Expired - Fee Related JP2545764B2 (en) | 1994-06-27 | 1994-06-27 | Call dead alert system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545764B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231971B1 (en) | 1995-06-09 | 2001-05-15 | Glaverbel | Glazing panel having solar screening properties |
| KR100308927B1 (en) * | 1999-10-05 | 2001-11-02 | 서평원 | Method for cell coverage survey of wireless fixed apparatus in DECT system |
-
1994
- 1994-06-27 JP JP6144426A patent/JP2545764B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231971B1 (en) | 1995-06-09 | 2001-05-15 | Glaverbel | Glazing panel having solar screening properties |
| US7037555B2 (en) | 1995-06-09 | 2006-05-02 | Glaverbel | Method of manufacturing a glazing panel |
| US7803463B2 (en) | 1995-06-09 | 2010-09-28 | Agc Flat Glass Europe Sa | Glazing panel having solar screening properties |
| KR100308927B1 (en) * | 1999-10-05 | 2001-11-02 | 서평원 | Method for cell coverage survey of wireless fixed apparatus in DECT system |
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| Publication number | Publication date |
|---|---|
| JP2545764B2 (en) | 1996-10-23 |
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