JP2004088429A - Method and system for controlling communication time regulation of telephone set performing speech communication through communication network - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable as many persons as possible to use public telephone lines as equally as possible and set communication with no restriction in a communication time on the occurrence of a large-scale disaster, a failure in a communication network and an exchange, and when communication requests due to an event or the like increase rapidly in a short period of time, or the like. <P>SOLUTION: A division is made between a priority telephone number terminal group (A) and the other telephone number terminal group (B) in particular. An operation center monitors the number of communication requests and the number of call loses of a gateway mobile communication exchange, an intra-range mobile communication exchange, a base station, etc. The operation center observers the number of communication requests and the number of call losses and calculates one calling time that makes a call loss rate to be the same as a normal rate according to the numbers. Speech communication is arranged to be disconnected within regulated one calling time as to a user of the other telephone number terminal group. <P>COPYRIGHT: (C)2004,JPO

Description

と
【数４】

を用いることを特徴とする。ただし、通信規制時間αの時の平均通信時間：ｈ、通常時の平均通信時間：１／λ、生起呼数：Ｎ、Ａ群の生起呼数とＢ群の生起呼数の比：ｍ対ｎ、通信規制時の平均通信時間：Ｘとする。ただし、Ｘは正の実数とする。
【００２１】
（第６発明）
第６発明の通信網を介して通話する電話機の通信時間規制制御方法において、一通話時間の計算は、通信要求数全体のカウントか、優先電話番号端末機群のカウントの推定、または他の電話番号端末機群のカウントの推定によって、通信時間を決めることを特徴とする。
【００２２】
（第７発明）
第７発明の通信網を介して通話する電話機の通信時間規制制御方法において、一通話時間の計算は、優先電話番号端末機群と他の電話番号端末機群の生起呼数を契約の比で前記両者の生起呼数の比を推定することによって決めることを特徴とする。
【００２３】
（第８発明）
第８発明の通信網を介して通話する電話機の通信時間規制制御方法において、一通話時間の計算は、優先電話番号端末機群と他の電話番号端末機群とでチャネルの割当を変えずに、両者の呼損率がほぼ等しくなるように決めることを特徴とする。
【００２４】
（第９発明）
第９発明の通信網を介して通話する電話機の通信時間規制制御方法において、一通話時間の計算は、生起呼数を観測する観測時間を設定して、過去の数回の観測結果から判断し、特定の時間ごと、段階的に変化させるように決めることを特徴とする。
【００２５】
（第１０発明）
第１０発明の通信網を介して通話する電話機の通信時間規制制御方法において、他の電話番号端末機群には、通信開始時に、通信規制時間や過去の呼損率を通知することを特徴とする。
【００２６】
（第１１発明）
第１１発明の通信網を介して通話する電話機の通信時間規制制御方法において、他の電話番号端末機群には、通信規制時間の終了が近づいていることを通知することを特徴とする。
【００２７】
（第１２発明）
第１２発明の通信網を介して通話する電話機の通信時間規制制御システムは、少なくとも一つの交換局または基地局を監視することにより、輻輳状態を検出する輻輳状態検出手段１１１と、前記輻輳状態検出手段１１１によって検出された交換局または基地局の通信要求数および呼損数を観測する通信要求数および呼損数観測手段１６、１６１、１６２と、前記通信要求数および呼損数観測手段１６、１６１、１６２によって観測された通信要求数にしたがって呼損率を通常と同じにする一通話時間を計算する演算手段１７と、前記計算された一通話時間内で通話を切断する切断手段と、を少なくとも備えていることを特徴とする。
【００２８】
（第１３発明）
第１３発明の通信網を介して通話する電話機の通信時間規制制御システムは、少なくとも一つの交換局または基地局を監視することにより、輻輳状態を検出する輻輳状態検出手段１１１と、前記輻輳状態検出手段１１１によって検出された交換局または基地局において、優先契約をしている優先電話番号端末機群と、他の電話番号端末機群とに分ける電話番号検出手段１３、１５と、前記電話番号検出手段１３、１５によって検出された優先電話番号端末機群に優先的に回線を提供する回線設定手段１４と、前記電話番号検出手段１３、１５によって検出された他の電話番号端末機群の通信要求数および呼損数を観測する通信要求数および呼損数観測手段１６、１６１、１６２と、前記通信要求数および呼損数観測手段１６、１６１、１６２によって観測された通信要求数にしがって呼損率を通常と同じにする一通話時間を計算する演算手段１７と、前記他の電話番号端末機群に回線を提供する回線設定手段１４と、前記他の電話番号端末機群に対して、前記計算された一通話時間内で通話を切断する切断手段と、を少なくとも備えていることを特徴とする。
【００２９】
（第１４発明）
第１４発明の通信網を介して通話する電話機の通信時間規制制御システムは、通話時間が規制されていることを示す警告音またはバイブレーションを発生させる警告手段を備えていることを特徴とする。
【００３０】
（第１５発明）
第１５発明の通信網を介して通話する電話機の通信時間規制制御システムは、規制された通話時間の残り時間を表示する表示部または通知する通知手段１９を備えていることを特徴とする。
【００３１】
（第１６発明）
第１６発明の通信網を介して通話する電話機の通信時間規制制御システムは、現在の呼損率および／または通信規制時間を表示する表示手段を備えていることを特徴とする。
【００３２】
（第１７発明）
第１７発明の通信網を介して通話する電話機の通信時間規制制御システムは、固定電話機と固定電話機、携帯電話機と携帯電話機、あるいは固定電話機と携帯電話機のいずれかに使用できることを特徴とする。
【００３３】
【発明の実施の形態】
本発明は、優先電話契約によって特定の電話番号を有する端末機群（優先電話番号端末機群）を専用回線のように切れ目なく、電話回線への接続を保持することが必要なもの（Ａ群）と、電話回線に再度接続できれば、切れ目なく電話回線を保持することが必ずしも必要でない前記以外の端末機群（他の電話番号端末機群）（Ｂ群）とに分類する。
【００３４】
オペレーションセンタ等は、関門移動通信交換局、在圏移動通信交換局、および各基地局を監視して、輻輳状態になっている在圏移動通信交換局または基地局を検出する。本発明において、輻輳状態になっている基地局または在圏移動通信交換局配下の基地局は、他の電話番号端末機群（Ｂ）の通信時間を規制する。
【００３５】
本発明は、前記他の電話番号端末機群（Ｂ）の通信時間を制限することによって、他の電話番号端末機群（Ｂ）の使用者が前記制限時間以上の通信ができなくなる代わりに、その分、電話回線が空き、新たな通信ができることになり、多くの通信を確保できることになる。前記優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の呼損率の差を無くすことができて、多くの使用者に対する通信が確保できることになる。
【００３６】
また、たとえば、正月あるいはクリスマスのようなイベントの場合、前記優先電話番号端末機群（Ａ）は空き、他の電話番号端末機群（Ｂ）は輻輳するため、公衆回線をＡ群およびＢ群に分けずに通常の呼損率で、通信時間のみを制限することも可能である。
【００３７】
（第１発明）
第１発明は、前述のような優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）とを特別に分けない場合である。たとえば、オペレーションセンタは、関門移動通信交換局、在圏移動通信交換局、および基地局の通信要求数および呼損数を監視する。前記オペレーションセンタは、たとえば、交換局または基地局における輻輳状態を検出する。しかし、前記方法は、一旦災害が発生したら、優先電話番号端末機群（Ａ）に対して、所定の電話回線を自動的に優先して使用できるようにしておくことが必要である。
【００３８】
前記オペレーションセンタは、輻輳状態の発生している交換局または基地局における通信要求数および呼損数を観測し、これらにしたがって呼損率を通常と同じにする一通話時間を計算する。なお、呼量（アーラン）＝１時間当たりの呼数（呼／時間）×平均保留時間（時間／呼）、呼損率＝損失呼数／生起呼数である。
【００３９】
前記輻輳状態にある交換局または基地局を介して通話を行う電話回線の使用者は、前記規制された一通話時間内で通話が切断されるようになっている。このように、電話回線の使用者は、呼損率を通常と大略同じにして一通話時間を短くすることにより、電話回線を平等に分け合って利用できる。
【００４０】
（第２発明）
第２発明は、気象関係、水防関係、消防関係、放送事業関係、金融関係等の事業者で災害時等のために優先契約をしている優先電話番号端末機群（Ａ）と、切れ目なく回線を保持することが必ずしも必要でない、前記以外の他の電話番号端末機群（Ｂ）とに分け、前記優先電話番号端末機群（Ａ）に対して、災害時であっても、優先して電話回線を接続できるようにし、他の電話番号端末機群（Ｂ）のみの通信時間を規制している点で、第１発明と異なっている。
【００４１】
すなわち、他の電話番号端末機群（Ｂ）は、前記優先電話番号端末機群（Ａ）に優先的に電話回線が提供された後に、残された電話回線の通信要求数にしたがって呼損率を通常と同じにする一通話時間が計算され、前記一通話時間内で通話した後、電話回線が切断される。また、第２発明は、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）が共に優先契約をしている場合とすることもできる。この場合、優先電話番号端末機群（Ａ）は、切れ目なく電話回線を接続することが必要があり、他の電話番号端末機群（Ｂ）は、優先順位が低く、電話回線を切れ目なく保持する必要がないものとする。
【００４２】
（第３発明）
第３発明は、輻輳状態においても、呼損率を通常状態と同じになるように低下させる点に特徴がある。すなわち、第３発明は、輻輳状態であっても、電話の掛かり具合が同じであるが、発呼回数が多いほど一通話当たりの時間が短くなる。しかし、第３発明は、輻輳状態であっても、使用者が電話回線を通常と同様に平等に利用していることになる。
【００４３】
（第４発明）
第４発明における通話時間の規制は、電話回線が全て塞がっている時間が一定時間以上続くこと、および生起呼数をカウントし、通常の生起呼数より多くなっていることが一定時間以上続くことに基づいて決められている。また、前記通話時間の規制は、呼損状態および生起呼数の状態を通常と比較していずれか一方が予め決められた一定時間以上継続することによってもよい。
【００４４】
（第５発明）
第５発明における一通話時間（規制）の計算は、まず、
【数５】

によって、通常時の平均通信時間から通信規制時間αを計算する。しかし、優先電話番号端末機群（Ａ）は、通信規制を行わずに、他の電話番号端末機群（Ｂ）のみの通信規制を行う場合、両者の生起呼数の比をｍ：ｎとして、
【数６】

を用いて他の電話番号端末機群（Ｂ）の通信規制時間Ｘが求められる。平均通信時間Ｘを求め、
【数７】

のｈに代入することにより通信規制時間αが求められる。ただし、Ｘは正の実数である。
【００４５】
（第６発明）
第６発明における一通話時間の計算は、通信要求数全体のカウントか、優先電話番号端末機群のカウントからの推定、または他の電話番号端末機群のカウントからの推定によって、他の電話番号端末機群（Ｂ）に割り当てられている電話回線に基づいて、通話時間を決めている。第６発明は、計算が容易であり、電話回線が使用者に公平に配分される。
【００４６】
（第７発明）
第７発明における一通話時間の計算は、電話回線を優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の生起呼数を契約の比で前記両者の生起呼数の比を推定し、これに基づいて配分する。第７発明は、生起呼数に着目して、電話回線を配分している。
【００４７】
（第８発明）
第８発明における一通話時間の計算は、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）とで呼損率がほぼ等しくなるようにする。すなわち、両者は、チャネルの割当を変えずに、一通話時間だけを規制して、通常時とほぼ同じ呼損率にしている。
【００４８】
（第９発明）
第９発明における一通話時間の計算は、生起呼数と過去の観測結果に着目すると共に、規制を段階的に行おうとするものである。すなわち、前記一通話時間の規制は、生起呼数を観測する観測時間を設定して、過去の数回の観測結果から判断し、特定の時間ごとに段階的に変化させるようにしている。
【００４９】
（第１０発明）
第１０発明は、他の電話番号端末機群（Ｂ）に対して、通信開始時に、通信規制時間や過去の呼損率を通知する。これらは、一定時間毎に通知チャネル等により一般に通知する。電話回線の使用者は、前記通信規制時間や過去の呼損率を知ることで、輻輳状態を把握すると共に、必要最低限の時間で回線を切断するような努力をするようになる。
【００５０】
（第１１発明）
第１１発明は、他の電話番号端末機群（Ｂ）に対して、通信規制時間の終了が近づいていることを通知する。たとえば、前記通知は、残りの通話時間が後何秒であるかが判るため、用件を早めに終えようとする。その結果、電話回線の呼損率を下げることができる。
【００５１】
（第１２発明）
第１２発明の通信網を介して通話する電話機の通信規制時間制御システムは、輻輳状態を検出する輻輳状態検出手段と、通信要求数および呼損数を観測する通信要求数および呼損数観測手段と、規制された一通話時間を計算する演算手段と、電話回線を切断する切断手段とから構成されている。
【００５２】
輻輳状態検出手段は、少なくとも一つの交換局または基地局を監視することにより、電話回線の輻輳状態を検出する。前記通信要求数および呼損数観測手段は、前記輻輳状態検出手段によって検出された交換局または基地局の通信要求数および呼損数を観測する。演算手段は、前記通信要求数および呼損数観測手段によって観測された通信要求数および呼損数等を基にして、使用者が電話をかける際の呼損率を通常と同じにする一通話時間を計算する。切断手段は、前記演算手段によって演算された一通話時間が終了次第電話回線を切断することによって、使用者に電話回線を平等に配分する。
【００５３】
（第１３発明）
第１３発明は、電話番号検出手段によって、輻輳状態の交換局または基地局の優先契約をしている優先電話番号端末機群（Ａ）と、他の電話番号端末機群（Ｂ）とを分ける点で、第１２発明と異なっている。したがって、第１３発明において、前記優先電話番号端末機群（Ａ）は、優先して電話回線に接続される。
【００５４】
他の電話番号端末機群（Ｂ）は、第１２発明と同様に、通信要求数および呼損数等が観測され、前記観測された通信要求数等によって、呼損率を通常と同じにする一通話時間が演算される。そして、使用者は、前記規制された一通話時間だけ、通話が許可された後、自動的に電話回線が切断される。
【００５５】
（第１４発明）
第１４発明は、警告手段によって、使用者に通話時間が規制されていることを示す警告音またはバイブレーションを発生させる。さらに、切断前にも複数回行うことができる。使用者は、前記警告手段における音または振動等によって、用件を早く終了するようにするため、電話回線の利用率が高くなる。
【００５６】
（第１５発明）
第１５発明は、通知手段によって規制された通話時間の残り時間を表示するようになっている。使用者は、前記通知手段に表示された残り通話時間を見て、短い時間を有効に話すようになり、電話回線の利用率を向上させることができる。
【００５７】
（第１６発明）
第１６発明の表示手段は、現在の呼損率または通信規制時間、あるいは呼損率および通信規制時間を表示することにより、使用者が輻輳状態を知り、無用な電話をかけないようになり、電話回線を有効に使用することができる。また、前記表示装置は、他の電話番号端末機群あるいは一般の使用者の電話機等に取り付けることにより、現在の通信網おける輻輳状態を知ることができる。
【００５８】
（第１７発明）
本発明の通信網を介して通話する電話機の通信時間規制制御システムは、固定電話機から固定電話機、携帯電話機から携帯電話機、あるいは固定電話機と携帯電話機の相互の使用ができる。
【００５９】
【実施例】
図１は本発明の一実施例で、通信規制時間を決めるためのブロック構成図である。図１において、通信システムは、オペレーションセンタ１１１と、交換局１１２、端末機群１１３、１１４と、これらを接続する電話回線とから構成されている。前記オペレーションセンタ１１１は、基地局や交換局を監視している基地局・交換局の監視手段１１と、輻輳基地局や輻輳交換局を検出する輻輳基地局・交換局検出手段１２とを監視あるいは制御している。
【００６０】
交換局は、輻輳交換局の優先電話番号端末機群を検出するための輻輳交換局の優先電話番号検出手段１３と、空き回線を探し、回線を設定する回線設定手段１４と、輻輳交換局の他の電話番号端末機群を検出するための輻輳交換局の他の電話番号検出手段１５と、輻輳交換局における通信要求数および呼損数を観測する通信要求数および呼損数観測手段１６と、前記通信要求数等から通信規制時間を演算すると共に、前記通信規制時間を決定する通信規制時間演算・決定手段１７と、前記通信規制時間演算・決定手段１７に基づいて、発呼者に対して通話時間を設定する通話時間設定手段１８と、発呼者が実際に話せる通話時間や通話終了時間を通知する通信時間通知手段１９とを少なくとも備えている。
【００６１】
前記交換局１１２における前記各機能は、基地局に設けることも可能である。端末機群には、専用線のように切れ目なく回線を保持することが必要な優先電話番号端末機群（Ａ）１１３と、再度回線を接続できれば切れ目なく回線を保持することが必ずしも必要でない他の電話番号端末機群（Ｂ）１１４とがある。
【００６２】
図２は本発明の実施例を説明するためのフローチャートの一例である。図２において、図７に示した通信網が構成されている中で、各交換局または基地局が連携して行われているものとし、たとえば、全体を管理するオペレーションセンタ１１１のような上位局が指令し、（在圏移動通信）交換局１１２が中心となって実行することができる。その際に、優先電話番号端末機群（Ａ）からの発呼以外は、優先電話番号規制により規制がかかっているものとする。
【００６３】
まず、ステップ２１１において、たとえば、オペレーションセンタ１１１は、基地局・交換局の監視手段１１に輻輳状態を監視させ、輻輳基地局・交換局検出手段１２によって輻輳交換局を検出する。前記輻輳交換局の優先電話番号検出手段１３は、契約された電話番号によって、優先電話番号端末機群からの発呼、すなわち、通信要求があったことを検出する（ステップ２１２）。
【００６４】
次に、前記優先電話番号検出手段１３は、前記電話番号により、前記発呼が優先電話番号端末機群（Ａ）のものであるか否かを調べる（ステップ２１３）。前記通信要求が優先電話番号端末機群（Ａ）からのものではないと判定した場合、交換局１１２の図示されていない制御装置は、空き回線があるか否かを調べる（ステップ２１４）。
【００６５】
前記制御装置は、前記ステップにおいて、空き回線がないと判断した場合、呼損（ステップ２１５）とみなし、ステップ２１１のスタートに戻らせる。前記ステップ２１３において、前記優先電話番号検出手段１３は、前記通信要求が重要通信クラス、すなわち、発呼が優先電話番号端末機群（Ａ）のものであると判断した場合、前記制御装置に空き回線を探させる。
【００６６】
前記制御装置は、空き回線があるか否かを調べる（ステップ２１６）。前記優先電話番号検出手段１３は、空き回線がないと判断した場合、呼損（ステップ２１７）となり、通信網から消えてエンドとなる（ステップ２２０）。前記制御装置は、有線回線および／または無線回線に空き回線があると判断した場合、回線設定手段１４により電話回線が設定され（ステップ２１８）、通信が可能な状態になる。
【００６７】
優先使用者は、通話が終了した場合、終話（ステップ２１９）となり、通常の手段によって電話回線が切断され、エンドとなる（ステップ２２０）。ステップ２１４において、輻輳交換局の他の電話番号検出手段１５は、電話番号により優先電話番号端末機群（Ａ）ではなく、他の電話番号端末機群（Ｂ）であると判断した場合、前記制御装置によって、空き回線があるか否かを調べさせる。
【００６８】
前記制御装置は、空き回線があると判断した場合、回線設定手段１４によって電話回線が設定され（ステップ２２１）、通信が可能な状態になる。もし、前記優先電話番号検出手段１３は、前記優先電話番号端末機群（Ａ）からの重要通信の要求が多く、輻輳状態であると判断した場合（ステップ２２３）、通信要求数および呼損数観測手段１６、通信規制時間演算・決定手段１７、通話時間設定手段１８等によって通信時間が規制される。
【００６９】
前記優先電話番号検出手段１３は、輻輳状態でないと判断した場合、通話が開始された後、終話（ステップ２２４）し、エンド（ステップ２２０）となる。輻輳基地局・交換局検出手段は、通信網が輻輳状態であると判断した場合、前記規制された通信時間で通話を可能にする。
【００７０】
その際、通信規制時間通知手段１９は、発呼者に対して残り時間を警報音やバイブレーション等によって通知する（ステップ２２５）。通話時間設定手段１８は、規制時間が来次第、電話回線を切断する（ステップ２２６）。発呼者は、前記通信時間通知手段１９の通知により、通信規制時間前に終話し（ステップ２２７）、エンド（ステップ２２０）となる。
【００７１】
前記輻輳状態であるという判定は、たとえば、電話回線が全て塞がっている時間が一定時間以上続くことや、生起呼数をカウントし、通常の生起呼数より多くなっていること等を基準にして行うことができる。
【００７２】
通信時間通知手段１９は、たとえば、もうすぐ通信が規制され、切断されることを知らせるため、電話回線が切断されるｔ秒前からある間隔をもって複数回の警報音を鳴らすか、またはバイブレーションを起こすといった方法がある。これらは、通信チャネルに付属して使用される付随制御チャネルを使用して、端末機を動作させるようにする。
【００７３】
警報音を聞いたり、バイブレーションを感じたりした使用者は、通信が切れることが予め判るため、話の内容を手短にするなどの対処ができる。回線設定手段１４は、予め決められた通信規制時間を過ぎたら電話回線を自動的に切断する。ここで、空いた回線は、すぐに他の通信要求のために使用されることになる。もちろん、通信規制時間前に終話要求ができれば終話となり、電話回線は空くことになり、前記同様に、他の電話回線として使用されることになる。
【００７４】
通信規制時間は、生起呼数に応じて、変化させることができる。すなわち、前記通信規制時間は、回線数と所要の呼損率から、その回線システムが処理できる呼量ａ（通信量を示す量、単位はｅｒｌ）を求めることで決められる。携帯電話機のような移動体がほとんど静止していれば、アーランＢ式を用いることができるし、予めシュミレーション等により計算表を作っておくこともできる。
【００７５】
呼量ａは、単位時間当たりの生起呼数×平均保留（通信）時間で表せる。単位時間当たりの生起呼数がＮ倍になった場合、平均通信時間を１／Ｎにすれば、システムに加わる呼量は、通常の呼量と同じになり、呼損率を通常（所要）の状態にできる。規制すべき通信規制時間αは、以下のようにして求まる。移動体は、全て静止していて、呼の生起は、ランダム、通信時間は、指数分布に従うと仮定する。また、災害によって増加するのは、生起呼数で、呼の通信時間の分布は同じ指数分布とする。
【００７６】
通信規制時間αの時の平均通信時間ｈは、指数分布を仮定しているので、以下のように求まる。ただし、通常時の平均通信時間を１／λ　とする。
【００７７】
【数８】

すると、通信規制時間αは、
【００７８】
【数９】

となる。
【００７９】
今、通信時間を規制するのは、他の電話番号端末機群（Ｂ）だけで、優先電話番号端末機群（Ａ）は規制しないとして、生起呼数がＮ倍になった時、単純に通信時間を１／Ｎとすると、通常の呼量にはならない。全体の生起呼数がＮ倍になり、優先電話番号端末機群（Ａ）の生起呼数と他の電話番号端末機群（Ｂ）の生起呼数の比が、ｍ：ｎである場合には、以下のようになる。
【００８０】
通常状態の優先電話番号端末機群（Ａ）の生起呼数をＣａ、他の電話番号端末機群（Ｂ）の生起呼数をＣｂ、通常の平均通信時間を１／λ、求める平均通信時間をＸとする。
【数１０】

より、
【００８１】
【数１１】

Ｘを（２）のｈに代入すれば、通信規制時間が求まる。ただし、Ｘは正の実数とする。
【００８２】
呼の発生がランダム、通信時間が指数分布、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の呼の発生は、同じ率で、増加、減少するという前提があるが、おおよそ、このように見積もれる。通常時の平均通信時間１／λは、通常の観測により求めることができるので、生起呼数がＮ倍になったら、αを求めて、他の電話番号端末機群（Ｂ）の通信時間を規制すれば、呼損率を通常の呼損率に下げることができる。生起呼数は、優先電話番号端末機群（Ａ）の生起呼数の（１＋ｍ／ｎ）倍として推定してもよいし、他の電話番号端末機群（Ｂ）の（１＋ｎ／ｍ）倍として推定することもできる。
【００８３】
優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の生起呼数の比は、時間と地域によって、異なり、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の生起呼数をカウントして、その比を計算することが正確であるが、推定としては、もともとの契約加入者の比を使用することもできる。
【００８４】
通信規制時間は、生起呼数を観測する観測時間を設定して、過去の数回の観測結果から判断し、時間ごとに段階的に変化するものになる。観測時間の設定と何回の観測結果を使用するかは、短く、少なく設定すれば、それだけ、早く状態に対応したものになる。しかし、たまたま、まとまって呼が生起する場合を、呼量が多い状態と間違えることもあるので、システムの運用方針にあたって適切な観測方法を使用する。
【００８５】
優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）とに分類し、他の電話番号端末機群（Ｂ）に通信時間規制を適応することで、無駄なチャネルの占有をなくし、空きチャネルを多くし、多くの重要通信を確保できる。全ての端末機に通信時間規制を行わないで、救援活動等でどうしても、通信を中途で切ることができない機関の端末機群は、切ることなく通信ができるようになる。
【００８６】
しかし、チャネル割り当て時には、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）も受け入れるのに差がないので、呼損率は同じになり、特定の端末機だけ通信が全くできないという状態がなくなる。規制時間を生起呼数を観測して、呼量にあわせて通信時間を段階的に変化させるので、状況にあった適切な規制となる。
【００８７】
呼の発生は、ランダムで、通信時間は、指数関数分布とする。たとえば、各セルにチャネルが１０チャネル割り当てられていて、通常の呼量は、３．１ｅｒｌ、平均通信時間は、１２０秒であれば、呼損率は、約０．１％となる。災害等で、呼量が３倍の９．３ｅｒｌになったとする。
【００８８】
優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の呼量の比が、０．１：０．９で、セルが１Ｋｍの正方形で、移動帯が０−２０Ｋｍ／ｈの一様な分布で移動している場合、シュミレーションによると、呼損率は、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）でともに約１５％となる。他の電話番号端末機群（Ｂ）に通信時間規制を行い３６秒の通信規制時間にすると、呼損率を優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）でともに０．１％にできることが判明した。
【００８９】
図３は本発明の他の一実施例であり、通信規制時間を決めるためのブロック構成図で、（イ）および（イ）で接続されている。図３に示された実施例は、輻輳交換局の優先電話番号検出手段１３と輻輳交換局の他の電話番号検出手段１５とにそれぞれ通信要求数および呼損数観測手段１６１、１６２が設けられており、前記観測結果により通話路割当手段１６３によって通話路を割当てている点で図１に示された実施例と異なっている。
【００９０】
たとえば、正月やクリスマスの当日は、優先電話番号端末機群（Ａ）の回線に余裕があるにもかかわらず、他の電話番号端末機群（Ｂ）の通信時間を規制するといったことを無くすものである。前記実施例は、事件が発生した場合等があると、図１に示すような状態に戻せるようにする必要がある。
【００９１】
図４は本発明の実施例における基地局内におけるセルの一例を説明するための図である。図４において、セルは、形状が正方形で一辺の長さ１Ｋｍ、１２Ｋｍ×１２Ｋｍの二次元状サービスエリアで、各セルに１０チャネルが割り当てられているとする。道路が格子状に配置されていて、移動体がその上を０−２０Ｋｍ／ｈの一様分布で移動している場合の計算機シュミレーションを行った。統計収集エリアは、中央部の１６セルとした。この発生は、ランダムで、通信時間は、指数分布で平均が１２０秒とした。
【００９２】
基本呼量を３．１ｅｒｌとし、その時の呼損率は、０．１％であった。優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の呼量比を０．１：０．９とし、呼量を基本呼量の３倍の９．１ｅｒｌに増加させた。他の電話番号端末機群（Ｂ）に規制をかけないときは、優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）でそれぞれ１５．７％と１６．２％となった。
【００９３】
図５は優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）における通信規制時間と呼損率との関係を説明するための図である。
【００９４】
規制時間は、減少すると共に、空きチャネルが多くなり、呼損率が低下していることが判る。優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）の呼損率は、チャネルの割り当てに差をつけていないため、ほとんど変わりないのが判る。図５において、規制時間が３６秒の時に呼損率が略０．１％となった。
【００９５】
図６は優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）における通信規制時間と平均通信時間との関係を説明するための図である。図６において、規制をかけない優先電話番号端末機群（Ａ）の平均通信時間は、約１２０秒で略一定であるが、他の電話番号端末機群（Ｂ）は、規制時間と共に平均通信時間が減少していくのが判る。図６において、規制時間が３６秒の時は、３１秒の平均通信時間になった。
【００９６】
以上、本発明の実施例を詳述したが、本発明は、前記実施例に限定されるものではない。そして、特許請求の範囲に記載された本発明を逸脱することがなければ、種々の設計変更を行うことが可能である。図１および図２において示されているブロックは、周知または公知の技術によって達成できるものであり、また、通信規制時間の決め方は、本発明の明細書に記載されている範囲で変形可能である。
【００９７】
本発明の実施例は、オペレーションセンタによって輻輳基地局・交換局を検出し、当該輻輳基地局・交換局により一通話時間の規制時間を演算しているが、オペレーションセンタで前記検出と演算を同時することも可能である。さらに、前記検出および演算は、任意の場所によってそれぞれまたは一括して行うこともできる。本実施例では、通信要求数および呼損数によって、輻輳状態を監視しているが、呼量および呼損率によることも可能である。本実施例において、一通話時間の規制時間を使用者に報知する場合であっても、「通知」という文言に統一してある。
【００９８】
【発明の効果】
本発明によれば、他の電話番号端末機群の通信時間を制限することによって、他の電話番号端末機群の使用者が前記制限時間以上の通信ができなくなる代わりに、通信回線が空き、新たな通信需要に答えることになり、多くの通信を確保できるだけでなく、優先電話番号端末機群と他の電話番号端末機群の呼損率の差を無くすことができる。
【００９９】
本発明によれば、輻輳状態であっても、電話の掛かり具合が同じで、発呼回数が多いほど一通話当たりの時間が短くなるが、使用者が電話回線を通常と同様の確率で接続できる。これは、使用者間で平等にすることができる。
【０１００】
本発明によれば、一度接続できた端末機は、時間制限なく通信ができ、その間、全く通信ができない端末機が発生するという問題を解消し、通信要求が多くなっても、通信規制時間を設けることで、重要通信を確保すると共に、通話の機会を平等にできる。
【０１０１】
本発明によれば、使用者に通話時間が規制されていることを通知することによって、規制時間より早めに通話を終了するようにするため、電話回線の利用率が高くなる。
【０１０２】
本発明によれば、使用者が現在の呼損率や規制時間を知ることができるので、混雑している状態が判り、発信することを少なくする効果がある。
【図面の簡単な説明】
【図１】本発明の一実施例で、通信規制時間を決めるためのブロック構成図である。
【図２】本発明の実施例を説明するためのフローチャートの一例である。
【図３】本発明の他の一実施例であり、通信規制時間を決めるためのブロック構成図で、（イ）および（イ）で接続されている。
【図４】本発明の実施例における基地局内におけるセルの一例を説明するための図である。
【図５】優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）における通信規制時間と呼損率との関係を説明するための図である。
【図６】優先電話番号端末機群（Ａ）と他の電話番号端末機群（Ｂ）における通信規制時間と平均通信時間との関係を説明するための図である。
【図７】従来における固定電話端末機、携帯電話端末機等を関門移動通信交換局および在圏移動通信交換局を介した接続の一例を説明する模式図である。
【符号の説明】
１１・・・基地局・交換局の監視手段
１２・・・輻輳基地局・交換局検出手段
１１１・・・オペレーションセンタ
１３・・・輻輳交換局の優先電話番号検出手段
１４・・・回線設定手段
１５・・・輻輳交換局の他の電話番号検出手段
１６・・・通信要求数および呼損数観測手段
１７・・・通信規制時間演算・決定手段
１８・・・通話時間設定手段
１９・・・通信時間通知手段
１１２・・・交換局
１１３・・・優先電話番号端末機群
１１４・・・他の電話番号端末機群
１６１・・・通信要求数および呼損数観測手段
１６２・・・通信要求数および呼損数観測手段
１６３・・・通話路割当手段[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention enables many people to use a public telephone line as equally as possible in the event of a large-scale disaster, a failure of a communication network or a switching center, or a sudden increase in communication requests due to an event or the like. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication time regulation control method for a telephone set that communicates via a communication network, and a communication time regulation control system for a telephone set that communicates via a communication network.
[0002]
Note that a telephone set in this specification includes a fixed telephone, a public telephone, and a mobile telephone. Further, in this specification, the public telephone line is simply referred to as a telephone line to distinguish it from a dedicated telephone line.
[0003]
According to the present invention, when a large-scale disaster occurs, even if communication requests suddenly increase for safety confirmation and the like, congestion occurs, and it is difficult to connect the telephone line, rescue, traffic, communication or securing of power supply can be performed. A communication time regulation control method for telephones that communicates through a communication network that tries to use telephone lines equally, while ensuring important communications for maintaining order, etc., and a communication network. The present invention relates to a communication time regulation control system for telephones that communicate via a telephone.
[0004]
INDUSTRIAL APPLICABILITY The present invention is applicable to fixed telephones and mobile telephones using telephone lines. In particular, it is classified into priority telephone contract terminals for disasters for important communication and general telephone terminals, and the importance and traffic volume are classified. The present invention relates to a communication time regulation control method for telephones that communicate via a communication network, and a communication time regulation control system for telephones that communicate via a communication network.
[0005]
[Prior art]
FIG. 7 is a schematic diagram illustrating an example of a conventional connection between a fixed telephone terminal, a mobile telephone terminal, and the like via a gateway mobile communication switching center and a serving mobile communication switching center. In FIG. 7, the telephone line network includes a fixed telephone network 1, a gateway mobile communication switching center 2, a home memory station 3 in which subscribers are registered, a visited mobile communication switching center 4, and a location registration area R. , A plurality of mobile telephone terminals 6 existing in cells in the base station 5, fixed telephone terminals, and an operation center 8.
[0006]
The mobile telephone terminal 6 transmits a transmission request signal including its own telephone number and the telephone number of the other party to the serving base station 5. The serving mobile switching center 4 that manages the base station 5 accesses the home memory station 3 in which the mobile phone terminal 6 is registered, and the mobile phone terminal 6 is actually subscribed. After authenticating whether or not the wireless base station is present, the base station 5 in the service area is requested to set up a wireless line for communication.
[0007]
Further, the serving mobile switching center 4 sets up a wired line with the base station 5 and a wired line with the gateway mobile switching center 2, and then fixes the wired line via the gateway mobile switching center 2. Connect to telephone network 1. The fixed telephone network 1 is connected to, for example, a fixed telephone terminal 7 of the other party who has made a connection request with the mobile telephone terminal 6.
[0008]
For incoming calls from the fixed telephone terminal 7, the gateway mobile communication switching center 2 accesses the home memory station 3 in which the mobile telephone terminal 6 of the communication partner is registered via the fixed telephone network 1. The home memory station 3 has information of a location registration area R corresponding to the current location of the mobile phone terminal 6, and the information is updated every time the mobile phone terminal 6 moves and changes the location registration area R. You.
[0009]
Therefore, the gateway mobile communication switching center 2 obtains, from the home memory station 3, information on the location registration area R where the mobile phone terminal 6 is currently located, and the located mobile communication switching center 4 managing the location registration area R. Set up a wired line between. The serving mobile communication switching center 4 transmits a call request signal to a subordinate base station. The mobile phone terminal 6 transmits the response signal to the serving base station 5.
[0010]
The visited mobile communication switching center 4 accesses the home memory station 3 in which the mobile phone terminal 6 is registered, authenticates whether or not the mobile phone terminal 6 is subscribed, and then returns to the home mobile station. A wired line to the base station 5 is set. Then, the serving base station 5 sets a wireless line with the mobile phone terminal 6. The method of setting these lines differs slightly depending on the service provider, but the terminals are generally connected as described above. The operation center 8 monitors the mobile telephone network and responds to a failure of the base station or congestion of the exchange.
[0011]
When a large-scale disaster occurs, it is expected that the demand for outgoing / incoming calls for confirming the safety of victims and for reporting that they are safe will increase rapidly, and it will be impossible to allocate wireless or wired lines. For example, it has been reported that after the Great Hanshin-Awaji Earthquake in January 1995, the number of telephone calls from all over the country to Hyogo Prefecture was about 50 times the normal number at the peak.
[0012]
As of the end of March 1995, the number of mobile phone subscribers was about 4.3 million. However, the number of mobile phone subscribers has increased rapidly in recent years, exceeding 70 million as of the end of May 2002. Considering the above-mentioned spread situation, when a large-scale disaster occurs, the communication demand of the mobile phone rapidly increases, so that a communication line (wired line and wireless line) cannot be allocated, causing many call losses. It is expected that.
[0013]
Conventionally, a terminal with a specific priority telephone number registered in advance by a disaster priority telephone contract is given priority to a communication request, and a terminal with another telephone number is prevented from making a call. Thus, control for securing important communication is performed.
[0014]
[Problems to be solved by the invention]
In the event of a disaster, for example, meteorological agencies, flood defense agencies, fire departments, disaster rescue agencies, newspaper companies, broadcasters, financial institutions, etc., are widely registered as priority agency contracts (the Telecommunications Business Law Enforcement Regulations) Article 56). In addition, the spread of mobile phones has increased the number of priority telephone contracts in times of disaster. Even in the case of the priority telephone terminal, it is expected that a congestion state will occur, the communication line will be blocked, and it will be impossible to use it.
[0015]
In particular, at the site of a major disaster, the demand for important communication is high, and it is expected that all the wireless lines of the serving base stations will be used and communication of other telephone number terminal groups will not be possible. In this case, there is a problem in that a terminal that has been able to connect once can perform communication without a time limit, but during that time, some terminals cannot perform communication at all. Since the number of wireless lines is limited, there is a problem that the more communication requests, the more terminals that cannot communicate. Such a problem was very problematic in securing important communication.
[0016]
[Means for Solving the Problems]
(First invention)
A communication time regulation control method for a telephone set for making a telephone call via a communication network according to the first invention comprises the steps of monitoring the number of communication requests and the number of call losses of at least one switching center or base station; Detecting, in the congestion state of the exchange or base station, calculating one call time to make the call loss rate equal to the normal according to the number of communication requests in the exchange or base station; the calculated one call time Disconnecting the call within the device.
[0017]
(Second invention)
A communication time regulation control method for a telephone set that communicates via a communication network according to a second aspect of the present invention includes a step of monitoring the number of communication requests and the number of call losses of at least one switching center or base station; Detecting a priority telephone number terminal group having a priority contract and dividing the telephone number terminal group into another telephone number terminal group; providing a line by giving priority to the priority telephone number terminal group; Calculating one call time for making the call loss rate equal to the normal state according to the number of communication requests of the remaining lines to the exchange or base station in the state, and providing the line to the other telephone number terminal group. Disconnecting the call to the other telephone number terminal group within the calculated one call time.
[0018]
(Third invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to a third aspect of the present invention, the call loss rate is reduced to the same level as in a normal state even in a congested state.
[0019]
(4th invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to a fourth aspect of the invention, the regulation of the communication time is performed by counting the number of calls that have occurred and / or that the time during which all communication lines are completely closed continues for a predetermined time or more. It is characterized in that it is determined based on the fact that the number of calls that have been generated more than the normal number of calls continues for a certain period of time.
[0020]
(Fifth invention)
In the communication time regulation control method for a telephone which performs a call via a communication network according to a fifth invention, one call time is calculated by:
[Equation 3]

When
(Equation 4)

Is used. However, the average communication time at the time of the communication restriction time α: h, the average communication time at the normal time: 1 / λ, the number of generated calls: N, the ratio of the number of generated calls of the group A to the number of generated calls of the group B: m n, average communication time at the time of communication restriction: X. Here, X is a positive real number.
[0021]
(Sixth invention)
In the communication time regulation control method for telephones that communicate via a communication network according to the sixth invention, one communication time is calculated by counting the total number of communication requests, estimating the count of a group of priority telephone number terminals, or calculating the number of other telephones. The communication time is determined by estimating the count of the number terminal group.
[0022]
(Seventh invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to the seventh invention, one call time is calculated by calculating the number of occurrence calls of the priority telephone number terminal group and the other telephone number terminal groups by the contract ratio. The ratio is determined by estimating the ratio of the number of call occurrences.
[0023]
(Eighth invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to the eighth invention, the calculation of one call time is performed without changing the channel allocation between the priority telephone number terminal group and the other telephone number terminal groups. And the call loss rates of the two are determined so as to be substantially equal.
[0024]
(Ninth invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to a ninth aspect of the present invention, one call time is calculated by setting an observation time for observing the number of generated calls and judging from the past several observation results. It is characterized in that it is determined so as to be changed stepwise at specific time intervals.
[0025]
(Tenth invention)
In the communication time regulation control method for a telephone set that communicates via a communication network according to a tenth aspect of the present invention, a communication restriction time and a past call loss rate are notified to another telephone number terminal group at the start of communication.
[0026]
(Eleventh invention)
In the communication time regulation control method for a telephone set having a telephone call via a communication network according to an eleventh aspect, another group of telephone number terminals is notified that the end of the communication regulation time is approaching.
[0027]
(Twelfth invention)
A communication time regulation control system for a telephone set that performs a call through a communication network according to a twelfth aspect of the present invention includes a congestion state detection unit 111 for detecting a congestion state by monitoring at least one switching center or base station; Communication request and call loss number observation means 16, 161 and 162 for observing the communication request number and call loss number of the exchange or base station detected by the means 111; and the communication request and call loss number observation means 16, Calculating means 17 for calculating one talk time for making the call loss rate the same as usual according to the number of communication requests observed by 161 and 162, and disconnecting means for cutting off the call within the calculated one talk time It is characterized by having.
[0028]
(Thirteenth invention)
A communication time regulation control system for a telephone set that performs a call via a communication network according to a thirteenth aspect, comprising: a congestion state detection unit 111 for detecting a congestion state by monitoring at least one switching center or base station; Telephone number detecting means 13 and 15 for dividing a priority telephone number terminal group having a priority contract and another telephone number terminal group in the exchange or base station detected by the means 111; Line setting means 14 for preferentially providing a line to the priority telephone number terminal group detected by the means 13 and 15, and a communication request of another telephone number terminal group detected by the telephone number detecting means 13 and 15 Number of communication requests and the number of call loss observation means 16, 161 and 162 for observing the number and the number of call loss, and the number of communication request and the number of call loss observation means 16, 161 and 162 Therefore, a calculating means 17 for calculating one call time to make the call loss rate the same as the normal one according to the observed number of communication requests, a line setting means 14 for providing a line to the other telephone number terminal group, And a disconnecting means for disconnecting the call within the calculated one call time for the telephone number terminal group.
[0029]
(14th invention)
According to a fourteenth aspect of the present invention, there is provided a communication time regulation control system for a telephone which communicates via a communication network, further comprising a warning unit for generating a warning sound or vibration indicating that the talking time is restricted.
[0030]
(15th invention)
A communication time regulation control system for a telephone set that communicates via a communication network according to a fifteenth aspect of the present invention is characterized in that the communication time regulation control system includes a display unit for displaying the remaining time of the regulated call time or a notification unit 19 for notifying.
[0031]
(Sixteenth invention)
A communication time regulation control system for a telephone set that performs a telephone call via a communication network according to a sixteenth aspect of the present invention is characterized by comprising a display means for displaying a current call loss rate and / or a communication regulation time.
[0032]
(Seventeenth invention)
The communication time regulation control system for a telephone which performs a telephone call via a communication network according to the seventeenth invention is characterized in that it can be used for a fixed telephone and a fixed telephone, a mobile telephone and a mobile telephone, or a fixed telephone and a mobile telephone.
[0033]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the present invention, a terminal group having a specific telephone number (priority telephone number terminal group) according to a priority telephone contract is required to maintain a connection to a telephone line without interruption like a dedicated line (group A) ) And a group of terminals other than the above (other telephone number terminal groups) (group B), which do not necessarily need to maintain the telephone line seamlessly if they can be connected to the telephone line again.
[0034]
The operation center or the like monitors the gateway mobile communication switching center, the serving mobile communication switching office, and each base station, and detects the serving mobile communication switching office or the base station that is in a congested state. In the present invention, a base station in a congested state or a base station under a serving mobile switching center regulates the communication time of another telephone number terminal group (B).
[0035]
The present invention restricts the communication time of the other telephone number terminal group (B) so that the user of the other telephone number terminal group (B) cannot communicate for the time limit or longer, To that extent, the telephone line is vacant, new communication can be performed, and a lot of communication can be secured. The difference in the call blocking rate between the priority telephone number terminal group (A) and the other telephone number terminal group (B) can be eliminated, and communication to many users can be secured.
[0036]
For example, in the case of an event such as New Year or Christmas, the priority telephone number terminal group (A) is empty and the other telephone number terminal groups (B) are congested. It is also possible to limit only the communication time at a normal call loss rate without dividing the communication time.
[0037]
(First invention)
The first invention is a case where the above-mentioned priority telephone number terminal group (A) and another telephone number terminal group (B) are not specially divided. For example, the operation center monitors the number of communication requests and the number of blocked calls of the gateway mobile switching center, the serving mobile switching center, and the base station. The operation center detects, for example, a congestion state in an exchange or a base station. However, according to the above method, once a disaster has occurred, it is necessary that the priority telephone number terminal group (A) can automatically use a predetermined telephone line with priority.
[0038]
The operation center observes the number of communication requests and the number of call losses in the exchange station or the base station in which the congestion state occurs, and calculates one talk time for making the call loss rate the same as normal according to these. In addition, call volume (erlang) = number of calls per hour (call / time) × average holding time (time / call), call loss rate = number of lost calls / number of generated calls.
[0039]
A user of a telephone line making a call through the congested exchange or base station is disconnected from the call within the regulated one talk time. In this way, the user of the telephone line can use the telephone line equally by reducing the one call time by making the call loss rate substantially the same as the normal one.
[0040]
(Second invention)
The second invention is a seamless connection between a priority telephone number terminal group (A), which is a business operator related to weather, flood protection, firefighting, broadcasting business, finance, etc. and has a priority contract for a disaster or the like. It is not necessary to hold the line, and it is divided into other telephone number terminal groups (B) other than the above, and priority is given to the priority telephone number terminal group (A) even in the event of a disaster. The second embodiment is different from the first embodiment in that a telephone line can be connected to the telephone line and the communication time of only the other telephone number terminal group (B) is regulated.
[0041]
That is, after the telephone line is preferentially provided to the priority telephone number terminal group (A), the other telephone number terminal group (B) usually sets the call loss rate according to the number of communication requests of the remaining telephone lines. One call time is calculated to be the same as above, and after talking within the one call time, the telephone line is disconnected. Further, the second invention may be applied to a case where both the priority telephone number terminal group (A) and another telephone number terminal group (B) have a priority contract. In this case, the priority telephone number terminal group (A) needs to connect the telephone line without interruption, and the other telephone number terminal groups (B) have low priority and maintain the telephone line without interruption. It is not necessary to do it.
[0042]
(Third invention)
The third invention is characterized in that even in a congested state, the call loss rate is reduced to be the same as in a normal state. That is, in the third aspect of the present invention, the degree of a call is the same even in a congested state, but the time per call becomes shorter as the number of calls increases. However, in the third invention, even in a congested state, the user uses the telephone line equally as usual.
[0043]
(4th invention)
The control of the talk time in the fourth invention is that the time during which all the telephone lines are blocked continues for a certain time or more, and that the number of generated calls is counted and that the number of calls generated exceeds the normal number of calls continues for a certain time or more. It is decided based on. Further, the call duration may be regulated by comparing one of the call loss state and the state of the number of generated calls with a normal state for a predetermined time or more.
[0044]
(Fifth invention)
The calculation of one call time (restriction) in the fifth invention is as follows.
(Equation 5)

Calculates the communication restriction time α from the average communication time in normal operation. However, in the case where the priority telephone number terminal group (A) does not restrict the communication but restricts the communication of only the other telephone number terminal group (B), the ratio of the number of generated calls between them is m: n. ,
(Equation 6)

Is used to determine the communication restriction time X of the other telephone number terminal group (B). Find the average communication time X,
(Equation 7)

The communication restriction time α is determined by substituting into h. Here, X is a positive real number.
[0045]
(Sixth invention)
In the sixth invention, one call time is calculated by counting the total number of communication requests, estimating from the count of the priority telephone number terminal group, or estimating from the count of the other telephone number terminal group. The call duration is determined based on the telephone line assigned to the terminal group (B). In the sixth invention, the calculation is easy, and the telephone lines are fairly distributed to the users.
[0046]
(Seventh invention)
In the calculation of one call time in the seventh invention, the telephone line is calculated by calculating the number of calls made between the priority telephone number terminal group (A) and the other telephone number terminal group (B) by the ratio of the contracts to the number of calls made between the two. Estimate the ratio and allocate based on this. According to a seventh aspect of the present invention, telephone lines are allocated by paying attention to the number of calls that have occurred.
[0047]
(Eighth invention)
The calculation of one call time in the eighth invention is performed such that the call loss rates of the priority telephone number terminal group (A) and the other telephone number terminal group (B) are substantially equal. That is, the two parties regulate only one talk time without changing the channel assignment, so that the call loss rate is almost the same as in the normal state.
[0048]
(Ninth invention)
The calculation of one talk time in the ninth invention focuses on the number of calls that have occurred and the results of past observations, and attempts to perform the regulation step by step. That is, in the regulation of the one talk time, an observation time for observing the number of call occurrences is set, a judgment is made from several observation results in the past, and the time is changed stepwise at a specific time.
[0049]
(Tenth invention)
The tenth invention notifies the other telephone number terminal group (B) of the communication restriction time and the past call loss rate at the start of communication. These are generally notified at regular intervals by a notification channel or the like. By knowing the communication restriction time and the past call loss rate, the user of the telephone line grasps the congestion state and makes an effort to disconnect the line in the minimum necessary time.
[0050]
(Eleventh invention)
The eleventh invention notifies another telephone number terminal group (B) that the end of the communication restriction time is approaching. For example, the notification attempts to finish the task early because it is possible to know how many seconds remain in the remaining talk time. As a result, the call loss rate of the telephone line can be reduced.
[0051]
(Twelfth invention)
According to a twelfth aspect of the present invention, there is provided a communication restriction time control system for a telephone set for making a telephone call through a communication network, comprising: a congestion state detection means for detecting a congestion state; And a calculating means for calculating one regulated call time, and a cutting means for cutting the telephone line.
[0052]
The congestion state detecting means detects a congestion state of the telephone line by monitoring at least one switching center or base station. The communication request number and call loss number observation means observes the communication request number and the call loss number of the exchange or base station detected by the congestion state detection means. The arithmetic means, based on the number of communication requests and the number of call losses observed by the number of communication requests and the number of call loss observation means, etc., calculates one call time for making the call loss rate when a user makes a call the same as usual. calculate. The disconnecting means disconnects the telephone line as soon as one call time calculated by the calculating means ends, thereby distributing the telephone line equally to the user.
[0053]
(Thirteenth invention)
According to a thirteenth aspect of the present invention, the telephone number detecting means separates the priority telephone number terminal group (A) having a priority contract with the exchange or base station in the congested state from the other telephone number terminal group (B). This is different from the twelfth invention. Therefore, in the thirteenth invention, the priority telephone number terminal group (A) is preferentially connected to the telephone line.
[0054]
As in the twelfth aspect, the other telephone number terminal group (B) observes the number of communication requests and the number of call loss, and makes one call to make the call loss rate equal to the normal one according to the observed number of communication requests and the like. Time is calculated. Then, the user is automatically disconnected from the telephone line after the call is permitted for the restricted call time.
[0055]
(14th invention)
According to a fourteenth aspect, a warning sound or a vibration is generated by the warning means to indicate to the user that the talk time is regulated. Furthermore, it can be performed several times before cutting. The user ends the task early by the sound or vibration of the warning means, so that the utilization rate of the telephone line is increased.
[0056]
(15th invention)
According to a fifteenth aspect, the remaining time of the call time regulated by the notification means is displayed. The user sees the remaining call time displayed on the notification means, speaks effectively for a short time, and can improve the utilization rate of the telephone line.
[0057]
(Sixteenth invention)
The display means of the sixteenth invention displays the current call loss rate or communication restriction time, or the call loss rate and the communication restriction time, thereby preventing the user from knowing the congestion state and making unnecessary calls, and enabling the telephone line to be used. Can be used for In addition, the display device can be attached to another telephone number terminal group or a telephone of a general user to know the current congestion state in the communication network.
[0058]
(Seventeenth invention)
The communication time regulation control system for telephones that communicates via a communication network according to the present invention allows mutual use of fixed telephones to fixed telephones, mobile telephones to mobile telephones, or fixed telephones and mobile telephones.
[0059]
【Example】
FIG. 1 is a block diagram for determining a communication restriction time according to an embodiment of the present invention. In FIG. 1, the communication system includes an operation center 111, an exchange 112, terminal groups 113 and 114, and a telephone line connecting these. The operation center 111 monitors or monitors a base station / exchange station monitoring unit 11 that monitors a base station or an exchange, and a congestion base station / exchange station detection unit 12 that detects a congested base station or a congested exchange. Controlling.
[0060]
The exchange includes a priority telephone number detecting unit 13 of the congestion exchange for detecting a priority telephone number terminal group of the congestion exchange, a line setting unit 14 for searching for an empty line and setting a line, Another telephone number detecting means 15 for detecting another telephone number terminal group, a communication request number and a call loss number observing means 16 for observing the number of communication requests and the number of call losses in the congested exchange; The communication restriction time is calculated from the communication request number and the like, and the communication restriction time calculation / determination means 17 for determining the communication restriction time and the communication restriction time calculation / determination means 17 At least a call time setting means 18 for setting a call time, and a communication time notifying means 19 for notifying a call time or a call end time in which a caller can actually speak.
[0061]
The functions in the exchange 112 can be provided in a base station. The terminal group includes a priority telephone number terminal group (A) 113 which is required to hold a line without a break like a dedicated line, and a terminal line group which does not always need to hold a line without a break if a line can be connected again. Telephone number terminal group (B) 114.
[0062]
FIG. 2 is an example of a flowchart for explaining the embodiment of the present invention. In FIG. 2, it is assumed that, in the configuration of the communication network shown in FIG. 7, each exchange or base station is performed in cooperation with each other, for example, a higher-level station such as an operation center 111 that manages the whole. , And the (existing mobile communication) switching center 112 plays a central role. At this time, it is assumed that restrictions other than calling from the priority telephone number terminal group (A) are being restricted by priority telephone number restrictions.
[0063]
First, in step 211, for example, the operation center 111 causes the monitoring means 11 of the base station / exchange station to monitor the congestion state, and the congested base station / exchange station detection means 12 detects the congested exchange. The priority telephone number detecting means 13 of the congestion switching center detects, based on the contracted telephone number, a call from the priority telephone number terminal group, that is, a communication request (step 212).
[0064]
Next, the priority telephone number detecting means 13 checks whether or not the call is for the priority telephone number terminal group (A) based on the telephone number (step 213). If it is determined that the communication request is not from the priority telephone number terminal group (A), the control unit (not shown) of the exchange 112 checks whether there is an idle line (step 214).
[0065]
If the control device determines in the step that there is no free line, the control device regards it as a call loss (step 215) and returns to the start of the step 211. In step 213, when the priority telephone number detecting means 13 determines that the communication request is of the important communication class, that is, the call is of the priority telephone number terminal group (A), the priority telephone number Find the line.
[0066]
The control device checks whether there is a free line (step 216). If the priority telephone number detecting means 13 determines that there is no vacant line, it becomes a call loss (step 217), disappears from the communication network, and ends (step 220). When the control device determines that there is an empty line in the wired line and / or the wireless line, the line setting unit 14 sets a telephone line (step 218), and the communication device becomes communicable.
[0067]
When the call ends, the priority user ends the call (step 219), disconnects the telephone line by ordinary means, and ends (step 220). In step 214, if the other telephone number detecting means 15 of the congested exchange determines that the telephone number is not the priority telephone number terminal group (A) but the other telephone number terminal group (B), The control device checks whether or not there is a free line.
[0068]
When the control device determines that there is an empty line, the line setting means 14 sets a telephone line (step 221), and the communication device becomes communicable. If the priority telephone number detecting means 13 determines that there are many important communication requests from the priority telephone number terminal group (A) and it is congested (step 223), the number of communication requests and the number of call loss The communication time is regulated by the observation means 16, the communication regulation time calculation / determination means 17, the communication time setting means 18, and the like.
[0069]
If the priority telephone number detecting means 13 determines that the call is not in a congestion state, the call is started, then the call is terminated (step 224), and the process ends (step 220). When the congested base station / exchange station detecting means determines that the communication network is in a congested state, it enables a call during the restricted communication time.
[0070]
At this time, the communication restriction time notification means 19 notifies the caller of the remaining time by an alarm sound, vibration, or the like (step 225). The call time setting means 18 disconnects the telephone line as soon as the restricted time comes (step 226). According to the notification of the communication time notification means 19, the caller ends the call before the communication restriction time (step 227) and ends (step 220).
[0071]
The determination that the congestion state is, for example, that the time that the telephone line is all blocked for more than a certain time, or counting the number of calls that occur, based on the fact that the number of calls that have occurred is more than the normal It can be carried out.
[0072]
The communication time notifying means 19 emits a plurality of alarm sounds at a certain interval from t seconds before the telephone line is disconnected or causes a vibration, for example, in order to notify that communication will be restricted and disconnected soon. There is a way. These allow the terminal to operate using an associated control channel used in conjunction with the communication channel.
[0073]
The user who hears the alarm sound or feels the vibration can know in advance that the communication will be disconnected, and can take measures such as shortening the content of the talk. The line setting means 14 automatically disconnects the telephone line when a predetermined communication restriction time has passed. Here, the free line is immediately used for another communication request. Of course, if a call termination request can be made before the communication restriction time, the call is terminated, and the telephone line becomes empty, and is used as another telephone line in the same manner as described above.
[0074]
The communication restriction time can be changed according to the number of generated calls. That is, the communication restriction time is determined by obtaining a traffic volume a (a volume indicating a traffic volume, a unit is erl) that can be processed by the line system from the number of lines and a required call loss rate. If a mobile object such as a mobile phone is almost stationary, the Erlang B formula can be used, or a calculation table can be created in advance by simulation or the like.
[0075]
The traffic volume a can be represented by the number of generated calls per unit time × the average hold (communication) time. If the number of generated calls per unit time becomes N times, if the average communication time is reduced to 1 / N, the traffic volume added to the system becomes the same as the normal traffic volume, and the call loss rate becomes the normal (required) state. Can be. The communication restriction time α to be restricted is obtained as follows. It is assumed that all mobiles are stationary, the occurrence of calls is random, and the communication time follows an exponential distribution. Also, what increases due to the disaster is the number of generated calls, and the distribution of call communication time is the same exponential distribution.
[0076]
The average communication time h at the time of the communication restriction time α is obtained as follows because an exponential distribution is assumed. However, the average communication time at normal time is 1 / λ.
[0077]
(Equation 8)

Then, the communication restriction time α is
[0078]
(Equation 9)

It becomes.
[0079]
Now, it is assumed that the communication time is restricted only by the other telephone number terminal groups (B), and the priority telephone number terminal group (A) is not regulated. If the communication time is 1 / N, the traffic will not be normal. When the total number of generated calls becomes N times, and the ratio of the number of generated calls of the priority telephone number terminal group (A) to the number of generated calls of the other telephone number terminal group (B) is m: n, Is as follows.
[0080]
The number of calls made by the priority telephone number terminal group (A) in the normal state is Ca, the number of calls made by the other telephone number terminal groups (B) is Cb, the normal average communication time is 1 / λ, and the average communication time to be obtained. Is X.
(Equation 10)

Than,
[0081]
[Equation 11]

By substituting X for h in (2), the communication restriction time is obtained. Here, X is a positive real number.
[0082]
It is premised that call generation is random, communication time is exponential distribution, and call generation of the priority telephone number terminal group (A) and other telephone number terminal group (B) increases and decreases at the same rate. Can be roughly estimated in this way. Since the average communication time 1 / λ at normal time can be obtained by normal observation, when the number of generated calls becomes N times, α is calculated and the communication time of the other telephone number terminal group (B) is calculated. If regulated, the call loss rate can be reduced to a normal call loss rate. The number of generated calls may be estimated as (1 + m / n) times the number of generated calls of the priority telephone number terminal group (A), or (1 + n / m) times of the other telephone number terminal groups (B). Can be estimated as
[0083]
The ratio of the number of generated calls between the priority telephone number terminal group (A) and the other telephone number terminal group (B) differs depending on time and region, and differs from the priority telephone number terminal group (A) to the other telephone number terminals. It is accurate to count the number of incoming calls of the machine group (B) and calculate the ratio, but the ratio of the original subscriber can be used as an estimation.
[0084]
The communication restriction time is set to an observation time for observing the number of calls that have occurred, is determined from the results of several observations in the past, and changes stepwise with time. The setting of the observation time and the number of observation results to be used are short, and the smaller the setting, the sooner the state can be dealt with. However, a case in which a call occurs by chance may be mistaken for a state in which the call volume is large. Therefore, an appropriate observation method is used in the operation policy of the system.
[0085]
Classification into priority telephone number terminal group (A) and other telephone number terminal group (B) and adaptation of communication time regulation to other telephone number terminal group (B), thereby occupying useless channels. , Free channels are increased, and many important communications can be secured. Without restricting the communication time to all the terminals, a terminal group of an institution that cannot cut off communication halfway through a rescue operation or the like can communicate without cutting off.
[0086]
However, at the time of channel assignment, there is no difference in accepting the priority telephone number terminal group (A) and the other telephone number terminal group (B), so that the call loss rate becomes the same and only specific terminals cannot communicate at all. State disappears. The communication time is changed stepwise in accordance with the traffic volume by observing the number of calls that occur during the restriction time, so that appropriate restriction is established according to the situation.
[0087]
The occurrence of a call is random, and the communication time has an exponential distribution. For example, if 10 cells are allocated to each cell, the normal traffic is 3.1 erl, and the average communication time is 120 seconds, the call loss rate is about 0.1%. Assume that the traffic volume triples to 9.3 er due to a disaster or the like.
[0088]
The call volume ratio of the priority telephone number terminal group (A) to the other telephone number terminal group (B) is 0.1: 0.9, the cell is a square of 1 km, and the mobile band is 0-20 km /. According to the simulation, when the mobile phone moves with a uniform distribution of h, the call loss rate is about 15% in both the priority telephone number terminal group (A) and the other telephone number terminal group (B). When the communication time is restricted to the other telephone number terminal groups (B) and the communication restriction time is set to 36 seconds, the call loss rate is set to 0 for both the priority telephone number terminal group (A) and the other telephone number terminal group (B). .1%.
[0089]
FIG. 3 is a block diagram of another embodiment of the present invention for determining a communication restriction time, which is connected by (a) and (a). In the embodiment shown in FIG. 3, the priority telephone number detecting means 13 of the congested exchange and the other telephone number detecting means 15 of the congested exchange are provided with communication request number and call loss number observation means 161 and 162, respectively. This is different from the embodiment shown in FIG. 1 in that the communication path is allocated by the communication path allocating means 163 based on the observation result.
[0090]
For example, on the day of the New Year or Christmas, there is no need to regulate the communication time of the other telephone number terminal group (B) even though there is room in the line of the priority telephone number terminal group (A). It is. In the above-described embodiment, it is necessary to be able to return to the state shown in FIG. 1 when a case occurs or the like.
[0091]
FIG. 4 is a diagram for explaining an example of a cell in the base station according to the embodiment of the present invention. In FIG. 4, it is assumed that a cell is a two-dimensional service area having a square shape, a side length of 1 km and a length of 12 km × 12 km, and 10 channels are allocated to each cell. A computer simulation was performed in the case where roads were arranged in a grid and a moving object was moving thereover with a uniform distribution of 0 to 20 km / h. The statistics collection area was 16 cells at the center. This occurrence was random, and the communication time was an exponential distribution with an average of 120 seconds.
[0092]
The basic call volume was 3.1 erl, and the call loss rate at that time was 0.1%. The call volume ratio of the priority telephone number terminal group (A) to the other telephone number terminal group (B) is set to 0.1: 0.9, and the traffic is increased to 9.1 erl, which is three times the basic traffic. Was. When the other telephone number terminal group (B) is not restricted, the priority telephone number terminal group (A) and the other telephone number terminal group (B) have 15.7% and 16.2% respectively. became.
[0093]
FIG. 5 is a diagram for explaining the relationship between the communication restriction time and the call loss rate in the priority telephone number terminal group (A) and the other telephone number terminal group (B).
[0094]
It can be seen that the restriction time decreases, the number of available channels increases, and the call blocking rate decreases. It can be seen that the call loss rates of the priority telephone number terminal group (A) and the other telephone number terminal groups (B) are almost the same because there is no difference in channel assignment. In FIG. 5, when the restriction time is 36 seconds, the call blocking rate becomes approximately 0.1%.
[0095]
FIG. 6 is a diagram for explaining the relationship between the communication restriction time and the average communication time in the priority telephone number terminal group (A) and the other telephone number terminal groups (B). In FIG. 6, the average communication time of the group of priority telephone number terminals (A) which is not restricted is substantially constant at about 120 seconds, while the other telephone number terminal groups (B) have the average communication time together with the restriction time. You can see that the time is decreasing. In FIG. 6, when the regulation time is 36 seconds, the average communication time is 31 seconds.
[0096]
As mentioned above, although the Example of this invention was described in full detail, this invention is not limited to the said Example. Various design changes can be made without departing from the present invention described in the claims. The blocks shown in FIGS. 1 and 2 can be achieved by well-known or known techniques, and the method of determining the communication restriction time can be modified within the range described in the specification of the present invention. .
[0097]
In the embodiment of the present invention, the congested base station / exchange station is detected by the operation center, and the restricted time of one talk time is calculated by the congested base station / exchange station. It is also possible to do. Further, the detection and calculation can be performed individually or collectively at an arbitrary place. In the present embodiment, the congestion state is monitored based on the number of communication requests and the number of call losses. In the present embodiment, even when notifying the user of the restricted time of one call time, the wording is "unified".
[0098]
【The invention's effect】
According to the present invention, by limiting the communication time of the other telephone number terminal group, instead of the user of the other telephone number terminal group not being able to communicate for the above-mentioned time limit, the communication line is empty, In response to the new communication demand, not only can a large number of communications be secured, but also the difference in the call blocking rate between the priority telephone number terminal group and the other telephone number terminal groups can be eliminated.
[0099]
According to the present invention, even in a congested state, the degree of incoming calls is the same and the time per call becomes shorter as the number of calls increases, but the user connects the telephone line with the same probability as usual. it can. This can be equal among users.
[0100]
ADVANTAGE OF THE INVENTION According to this invention, the terminal which was able to connect once can solve the problem that communication can be performed without time limit, and during that time, the terminal that cannot communicate at all is eliminated. By providing such a communication device, it is possible to secure important communication and equalize the opportunity of a call.
[0101]
According to the present invention, by notifying the user that the call time is regulated, the call is terminated earlier than the regulated time, so that the utilization rate of the telephone line is increased.
[0102]
ADVANTAGE OF THE INVENTION According to this invention, since a user can know the current call blocking rate and restriction time, it is effective in knowing the state of congestion and reducing transmission.
[Brief description of the drawings]
FIG. 1 is a block diagram for determining a communication restriction time according to an embodiment of the present invention.
FIG. 2 is an example of a flowchart for explaining an embodiment of the present invention.
FIG. 3 is a block diagram of another embodiment of the present invention for determining a communication restriction time, which is connected by (a) and (a).
FIG. 4 is a diagram illustrating an example of a cell in a base station according to the embodiment of the present invention.
FIG. 5 is a diagram for explaining a relationship between a communication restriction time and a call loss rate in a priority telephone number terminal group (A) and another telephone number terminal group (B).
FIG. 6 is a diagram for explaining a relationship between a communication restriction time and an average communication time in a priority telephone number terminal group (A) and another telephone number terminal group (B).
FIG. 7 is a schematic diagram illustrating an example of a conventional connection between a fixed telephone terminal, a mobile telephone terminal, and the like via a gateway mobile communication switching center and a visited mobile communication switching center.
[Explanation of symbols]
11 Monitoring means for base station and exchange
12 ... Congestion base station / exchange station detection means
111 ・ ・ ・ Operation center
13. Priority telephone number detecting means of the congested exchange
14. Line setting means
15... Other telephone number detecting means of the congested exchange
16 means for observing the number of communication requests and the number of call losses
17: Communication restriction time calculation / determination means
18 ・ ・ ・ Talk time setting means
19: Communication time notification means
112 ・ ・ ・ Exchange
113 ・ ・ ・ Priority telephone number terminal group
114 ... Other telephone number terminal group
161: Means for observing the number of communication requests and the number of call losses
162: Means for observing the number of communication requests and the number of call losses
163 ··· Call path allocating means

Claims (17)

Monitoring the number of communication requests and the number of blocked calls of at least one exchange or base station;
Detecting a congestion state in the exchange or base station,
In the congestion state of the exchange or base station, calculating one call time to make the call loss rate the same as normal according to the number of communication requests in the exchange or base station,
Disconnecting the call within the calculated call time,
A communication time regulation control method for a telephone set for making a telephone call via a communication network, at least comprising: Monitoring the number of communication requests and the number of blocked calls of at least one exchange or base station;
Detecting a congestion state in the exchange or base station,
Dividing the priority telephone number terminal group having a priority contract from the other telephone number terminal groups,
Providing a telephone line in preference to the priority telephone number terminal group;
For the exchange station or base station in the congested state, calculating one call time to make the call loss rate the same as normal according to the number of communication requests of the remaining telephone line,
Providing a telephone line to the other telephone number terminal group;
Disconnecting the call within the calculated one call time for the other telephone number terminal group;
A communication time regulation control method for a telephone set for making a telephone call via a communication network, at least comprising: 3. The method according to claim 1, wherein the call loss rate is reduced even in a congested state as in a normal state. The regulation of the talk time is that the time during which all communication lines are closed lasts for a certain period of time and / or that the number of generated calls is counted and that the number of generated calls exceeds the normal number of calls continues for a certain period of time or more. 4. The communication time regulation control method for a telephone set for making a telephone call via a communication network according to claim 1, wherein the communication time restriction control method is determined based on the determination. The calculation of the one talk time,

When

5. The communication time regulation control method for a telephone set for communicating via a communication network according to claim 2, wherein the communication time restriction control method is used. However, the average communication time at the time of the communication restriction time α: h, the average communication time at the normal time: 1 / λ, the number of generated calls: N, the ratio of the number of generated calls of the group A to the number of generated calls of the group B: m n, average communication time at the time of communication restriction: X. Here, X is a positive real number. The one call time is calculated by determining the communication time by counting the total number of communication requests, estimating from the count of the priority telephone number terminal group, or estimating from the count of other telephone number terminal groups. 6. A communication time regulation control method for a telephone set for making a telephone call via a communication network according to any one of claims 1 to 5. The calculation of the one call time is characterized in that the number of generated calls of the priority telephone number terminal group and the other telephone number terminal group is determined by estimating the ratio of the number of generated calls of the two to the contract ratio. A communication time regulation control method for a telephone set for making a telephone call via the communication network according to any one of claims 1 to 6. 2. The method according to claim 1, wherein the one talk time is calculated so that the call loss rates of the priority telephone number terminal group and the other telephone number terminal groups are substantially the same without changing the channel assignment. A communication time regulation control method for a telephone set for making a call via a communication network according to any one of claims 7 to 7. The calculation of the one call time is characterized by setting an observation time for observing the number of occurrence calls, judging from observation results of several times in the past, and for each specific time, determining to change stepwise. A communication time regulation control method for a telephone set for making a telephone call via the communication network according to any one of claims 1 to 8. The communication system according to any one of claims 1 to 9, wherein the other telephone number terminal groups are notified of a communication restriction time and a past call loss rate at the start of communication. Communication time regulation control method for telephones that talk by telephone. The other telephone number terminal group is notified that the end of the communication restriction time is approaching, via the communication network according to any one of claims 1 to 9. A communication time regulation control method for a telephone that is talking. By monitoring at least one switching center or base station, congestion state detection means for detecting a congestion state,
A communication request number and a call loss number observing means for observing the communication request number and the call loss number of the exchange or base station detected by the congestion state detecting means,
Arithmetic means for calculating one call time to make the call loss rate the same as normal according to the communication request number and the communication request number observed by the call loss number observation means,
Disconnecting means for disconnecting the call within the calculated one call time,
A communication time regulation control system for a telephone set for making a telephone call via a communication network. By monitoring at least one switching center or base station, congestion state detection means for detecting a congestion state,
In the exchange or base station detected by the congestion state detecting means, a priority telephone number terminal group having a priority contract, and a telephone number detecting means for dividing into other telephone number terminal groups,
Line setting means for preferentially providing a telephone line to the priority telephone number terminal group detected by the telephone number detecting means,
Communication request number and call loss number observation means for observing the communication request number and call loss number of the other telephone number terminal group detected by the telephone number detection means,
Arithmetic means for calculating one call time to make the call loss rate the same as normal according to the communication request number and the communication request number observed by the call loss number observation means,
Line setting means for providing a telephone line to the other telephone number terminal group,
Disconnecting means for disconnecting the call within the calculated one call time for the other telephone number terminal group,
A communication time regulation control system for a telephone set for making a telephone call via a communication network. 14. Communication of a telephone set for making a telephone call through a communication network according to claim 12, further comprising a warning means for generating a warning sound or vibration indicating that the talk time is regulated. Time regulation control system. 15. The communication unit according to claim 12, further comprising a display unit for displaying the remaining time of the regulated call time or a notification unit for notifying the remaining time. A communication time regulation control system for telephones that talk. 16. Communication of a telephone set for communicating via a communication network according to claim 12, further comprising display means for displaying a current call blocking rate and / or a communication restriction time. Time regulation control system. The communication network according to any one of claims 12 to 16, which can be used for a fixed telephone and a fixed telephone, a mobile phone and a mobile telephone, or a fixed telephone and a mobile telephone. A communication time regulation control system for telephones that talk.

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