JPH0341830A - Mobile radio communication line holding method - Google Patents
Mobile radio communication line holding methodInfo
- Publication number
- JPH0341830A JPH0341830A JP1175670A JP17567089A JPH0341830A JP H0341830 A JPH0341830 A JP H0341830A JP 1175670 A JP1175670 A JP 1175670A JP 17567089 A JP17567089 A JP 17567089A JP H0341830 A JPH0341830 A JP H0341830A
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- field strength
- level
- call
- talking
- 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
Links
- 238000004891 communication Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 6
- 230000005684 electric field Effects 0.000 claims abstract description 62
- 230000006866 deterioration Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims 1
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は複数の移動局が回線を共同利用する無線回線を
使用する移動無線通話回線保持方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for maintaining a mobile radio communication line using a radio line in which a plurality of mobile stations share the line.
（従来の技術）
従来の移動無線通話装置では１通話回線の品質確保のた
めに移動局装置およびセンター側装置の相互で電界強度
の計測を行えるよう、数段階の電界強度検出を行なうた
めの機構を用意し、電界強度を計測し劣化情報などによ
り回線切り替えの指令や移動電話装置独自に通信切断処
理を行なったりして良好な通話回線での通話確保がなさ
れるように制御している。(Prior Art) Conventional mobile radio communication devices have a mechanism for detecting field strength in several stages so that the field strength can be measured between the mobile station device and the center side device to ensure the quality of one communication line. The system measures the electric field strength and uses deterioration information to issue commands to switch lines and perform communication disconnection processing on its own to the mobile telephone device, thereby ensuring that calls can be made on a good line.
（発明が解決しようとする課題）
しかしながら、従来の移動無線通話装置では電界検出信
号を回線品質情報として扱っているために、サービスエ
リアの周辺へ遠ざかって行く状況での使用を前提として
設計されている。これらによって、−時的なフェージン
グやトンネルなどで遮蔽物により電界が急激に劣化した
場合も周辺への移動と同様に処理していた。これらの状
況が発生した場合には１回線切断を実行することで回線
品質を確保するように動作するために実際に通話が中断
されてしまうという問題点があった。(Problem to be Solved by the Invention) However, since conventional mobile radio communication devices treat electric field detection signals as line quality information, they are designed with the premise of use in situations where the user moves away from the service area. There is. As a result, even if the electric field suddenly deteriorates due to temporal fading or a shielding object such as in a tunnel, the process is handled in the same way as when moving to the surrounding area. When these situations occur, there is a problem in that the call is actually interrupted because it operates to ensure line quality by disconnecting one line.
本発明はこのような上記従来の問題を解決するものであ
り、急峻な電界強度の劣化時、履歴に基づき通話を確保
できる方法を提供することを目的とするものである。The present invention solves the above-mentioned conventional problems, and aims to provide a method that can secure a call based on the history when the electric field strength deteriorates sharply.
（課題を解決するための手段）
本発明は上記目的を達成するために、非常に良好な電界
強度情報について短時間で評価判定する手段と、この判
定結果の履歴を残す手段を設け、この最新に履歴情報か
ら電界強度の変化パターンを認識可能とすることで通話
回線制御機能を改善しようとするものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides means for evaluating and determining very good electric field strength information in a short time, and means for keeping a history of this determination result, and The aim is to improve call line control functions by making it possible to recognize changing patterns in electric field strength from historical information.
（作 用）
本発明は上記のような構成により次のような作用を有す
る。すなわち、短時間で判断できる最良電界強度レベル
の結果を順次残して行くことにより、安定に良好な電界
強度が続いた場合には、以降の一定時間については電界
強度の低下を見逃しても良いという判断材料を提供する
ことができる。(Function) The present invention has the following effects due to the above configuration. In other words, by sequentially recording the results of the best electric field strength level that can be determined in a short period of time, it is possible to overlook the decrease in electric field strength for a certain period of time if the electric field strength continues to be stable and good. It can provide information for making decisions.
（実施例）
第１図は本発明の一実施例による自動車電話装置の無線
通話回線保持機構についての制御動作を示している。第
１図において、１１はサービスエリアから遠ざかる場合
の電界強度の変化特性、１２は強電界エリアにいる移動
局が一時的遮蔽物等により妨げられた場合の電界強度の
変化特性、１３は電界強度の変化特性１１における電界
強度１９を超える時間、１４は電界強度の変化特性１２
における電界強度１９に超える時間、 １５は電界強度
の変化特性１１における制御機構による通話切断制御時
刻、１６は電界強度の変化特性１２における制御機構に
よる通話切断制御時刻、１７は通話保持Ｂタイマーの時
限、１８は通話保持Ａタイマーの時限、１９は強電界を
示す電界強度レベル、２０は弱電界を示す電界強度レベ
ル、２１は電界強度を周期的に積分判定する時間間隔で
ある。なお、第１図の横軸は時間の経過を示す時間軸で
ある。(Embodiment) FIG. 1 shows a control operation for a wireless communication line holding mechanism of a car telephone device according to an embodiment of the present invention. In Fig. 1, 11 is the change characteristic of the electric field strength when moving away from the service area, 12 is the change characteristic of the electric field strength when the mobile station in the strong electric field area is blocked by a temporary shield, etc., and 13 is the electric field strength 14 is the time when the electric field strength exceeds the electric field strength 19 in the change characteristic 11, and 14 is the change characteristic 12 of the electric field strength.
15 is the call disconnection control time by the control mechanism in the electric field strength change characteristic 11, 16 is the call disconnection control time by the control mechanism in the electric field strength change characteristic 12, and 17 is the time limit of the call hold B timer. , 18 is the time limit of the call hold A timer, 19 is the electric field intensity level indicating a strong electric field, 20 is the electric field intensity level indicating a weak electric field, and 21 is a time interval for periodically integrating and determining the electric field intensity. Note that the horizontal axis in FIG. 1 is a time axis indicating the passage of time.
次に上記実施例の動作について説明する。上記実施例に
おいて、自動電話装置は単位時間２１毎に電界強度を積
分測定して判断する。強電界を示す電界強度レベル１９
に達していると判断された場合には、その判断結果と過
去ｎ回連続して電界強度レベル１９に達していると判断
した場合には、通話保持Ａタイマーを再スタートさせる
。電界強度レベル１９から電界強度レベル２０の範囲に
入っていると判断した場合には、通話保持Ｂタイマーを
再スタートさせる。通話終結判断としては１通話保持Ａ
タイマーと通話保持Ｂタイマーの論理和の条件により判
断する。Next, the operation of the above embodiment will be explained. In the above embodiment, the automatic telephone device integrally measures the electric field strength every unit time 21 to make a decision. Electric field strength level 19 indicating strong electric field
If it is determined that the field strength level has reached 19, and if it is determined that the field strength level has reached 19 consecutively n times in the past, the call hold A timer is restarted. If it is determined that the field strength level is within the range from 19 to 20, the call hold B timer is restarted. Hold 1 call A for call termination decision
The determination is made based on the condition of the logical sum of the timer and the call hold B timer.
このように、上記実施例によれば、過去の電界強度の状
態が良好な電界強度の変化特性１２の場合には、急激に
電界強度が劣化しても通話保持Ａタイマーが作動するた
めに通話回線を切断することなく通話を保持することが
できる。また、サービスエリアから遠ざかる場合の電界
強度変化特性１１の場合には１通話保持Ｂタイマーのみ
が作動するために、タイマーの通話切断制御時刻１５に
おいて通話を切断することができる。このように従来の
基本機能を保持しながら、無線回線上にプツトポイント
での停止状態や遮蔽物の通過などにおいても通話回線を
切断することなく通話を保持することができる。As described above, according to the above embodiment, in the case of the electric field strength change characteristic 12 in which the past electric field strength state was good, the call hold A timer is activated even if the electric field strength suddenly deteriorates, so that the call cannot be made. You can hold calls without disconnecting the line. Further, in the case of the electric field strength change characteristic 11 when moving away from the service area, only the 1-call hold B timer is activated, so that the call can be disconnected at the call disconnection control time 15 of the timer. In this way, while maintaining the conventional basic functions, it is possible to maintain a call without disconnecting the call line even when the wireless line is stopped at a point or passes through a shield.
（発明の効果）
本発明は上記実施例より明らかなように、以下に示す効
果を有する。(Effects of the Invention) As is clear from the above examples, the present invention has the following effects.
（１）急峻な電界強度の劣化の場合でも電界強度の履歴
に基づき状況を判断して通話を保持することができる。(1) Even in the case of steep deterioration of electric field strength, it is possible to maintain a call by determining the situation based on the history of electric field strength.
緩やかな電界強度の劣化に際しては従来と同様に素早く
通話を切断することができる。When the electric field strength gradually deteriorates, the call can be quickly disconnected as before.
第１図は本発明の一実施例による自動車電話装置の通話
回線保持機構の制御説明図である。
１１・・・サービスエリアから遠ざかる場合の電界強度
の変化特性、１２ ・・−時的遮蔽物などによる電界
強度の変化特性。
１３・・・電界強度変化特性１１における電界強度１９
を超える時間、１４・・・電界強度変化特性１２におけ
る電界強度１９に超える時間、１５・・・電界強度変化
特性１１における制御機構による通話切断制御時刻、１
６・・・電界強度特性１２における本制御機構による通
話切断制御時刻、１７・・・通話保持Ｂタイマーの時限
、１８・・・通話保持Ａタイマーの時限、１９・・・強
電界を示す電界強度レベル、２０・・・弱電界を示す電
界強度し−ベル、
２１
電界強度測定判断をす
る単位時間。FIG. 1 is an explanatory diagram of control of a call line holding mechanism of a car telephone device according to an embodiment of the present invention. 11...Characteristics of changes in electric field strength when moving away from the service area, 12...Characteristics of changes in electric field strength due to temporal shielding, etc. 13... Electric field strength 19 in electric field strength change characteristic 11
14...Time exceeding electric field strength 19 in electric field strength change characteristic 12, 15...Call disconnection control time by control mechanism in electric field strength change characteristic 11, 1
6... Call disconnection control time by this control mechanism in electric field strength characteristic 12, 17... Time limit of call hold B timer, 18... Time limit of call hold A timer, 19... Electric field strength indicating strong electric field. Level, 20... Electric field strength indicating a weak electric field - Bell, 21 Unit time for electric field strength measurement judgment.
Claims (1)
態を電界強度の積分値による移動平均より割り出して急
激な電界強度の劣化発生と段階的な電界強度の低下とを
識別することにより通話回線の強制切断処理の実行判断
を決定する事を特徴とする移動無線通話回線保持方法。A call can be made by detecting two or more levels of the electric field strength of the telephone line, determining a good telephone call condition from a moving average based on the integrated value of the electric field strength, and distinguishing between a rapid deterioration of the electric field strength and a gradual decrease in the electric field strength. A mobile radio communication line maintenance method characterized by determining whether to execute a forced line disconnection process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175670A JPH0341830A (en) | 1989-07-10 | 1989-07-10 | Mobile radio communication line holding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1175670A JPH0341830A (en) | 1989-07-10 | 1989-07-10 | Mobile radio communication line holding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0341830A true JPH0341830A (en) | 1991-02-22 |
Family
ID=16000180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1175670A Pending JPH0341830A (en) | 1989-07-10 | 1989-07-10 | Mobile radio communication line holding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0341830A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497905B1 (en) * | 2001-11-28 | 2005-06-29 | 미쓰비시덴끼 홈기기 가부시키가이샤 | A heating appliance for cooking |
| JP2012010226A (en) * | 2010-06-28 | 2012-01-12 | Nec Casio Mobile Communications Ltd | Communication apparatus and program |
| JP2017152912A (en) * | 2016-02-24 | 2017-08-31 | Kddi株式会社 | Communication apparatus, communication control method and communication control program |
-
1989
- 1989-07-10 JP JP1175670A patent/JPH0341830A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497905B1 (en) * | 2001-11-28 | 2005-06-29 | 미쓰비시덴끼 홈기기 가부시키가이샤 | A heating appliance for cooking |
| JP2012010226A (en) * | 2010-06-28 | 2012-01-12 | Nec Casio Mobile Communications Ltd | Communication apparatus and program |
| JP2017152912A (en) * | 2016-02-24 | 2017-08-31 | Kddi株式会社 | Communication apparatus, communication control method and communication control program |
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