JP3925193B2

JP3925193B2 - Wireless quality good display method and method, and server

Info

Publication number: JP3925193B2
Application number: JP2001395117A
Authority: JP
Inventors: 誠須藤
Original assignee: NEC Corp
Current assignee: NEC Corp
Priority date: 2001-12-26
Filing date: 2001-12-26
Publication date: 2007-06-06
Anticipated expiration: 2021-12-26
Also published as: JP2003199158A

Description

【０００１】
【発明の属する技術分野】
本発明は、携帯端末の無線品質良好表示方式および方法、並びにサーバに関し、特に、携帯端末から無線品質良好位置情報の要求を行った場合に移動交換網にインターネットを介して接続されたサーバで無線品質良好位置情報を算出（抽出）して携帯端末の画面に表示する無線品質良好表示方式および方法、並びにサーバに関する。
【０００２】
【従来の技術】
従来技術における電波の強度に関する技術として、基地局からの電波を携帯端末の表示画面に現在地の電波の強度をレベルで表示することが開示されている。
【０００３】
【発明が解決しようとする課題】
しかしながら、次世代携帯電話のデータ転送速度は、３８４ｋｂｐｓから２Ｍｂｐｓが実現される。そのため、この速度を使用してデータの送受信を行うには、基地局からの電波の品質が良好であることが１つの条件となる。
【０００４】
すなわち、高速の転送速度が要求される携帯端末システムでは、できるだけ現在位置よりも電波の強度が強い場所に移動する機会が必要となるため、従来技術である電波の強度を表示画面に表示させるだけでは、どこに移動してよいかわからないという問題点がある。
【０００５】
本発明の目的は、上記問題点を鑑み、電波の受信感度が悪いと感じた場合に現在位置よりもできるだけ無線品質の良い地点に移動することにある。
【０００６】
また、本発明の別の目的は、携帯端末の保存できる容量のことを考慮した無線品質の良い場所への移動サービスを提供することにある。
【０００７】
【課題を解決するための手段】
上記目的を達成するために、本発明の第１の無線品質良好表示方式は、複数の携帯端末と、複数の基地局と、前記基地局のエリア情報を管轄する移動交換網とを備えた移動交換網携帯端末システムにおける無線品質良好表示方式において、前記移動交換網にインターネットを介して接続されたサーバを備え、前記携帯端末は、基地局からの電波の強度のレベルを無線品質として算出する算出手段と、地球を周回する複数の衛星から送られる信号に基づいて前記携帯端末自身の現在の位置情報を作成する検出手段と、前記無線品質と前記現在の位置情報とを含む情報を要求信号に乗せて無線品質良好位置情報の要求を行う要求手段と、前記要求手段により要求した無線品質良好位置情報を画面に表示する表示手段と、を有し、前記サーバは、各前記基地局からの複数の無線の品質度の内で前記基地局の無線の品質度から所定の値減少した範囲に入った無線の品質度のエリアに対応した品質分布エリアを，地図上にエリア識別情報毎に表示した情報を保存したデータベースを備え、前記無線品質良好位置情報の要求を受信すると前記無線品質と前記現在の位置情報とを前記要求信号から抽出しその抽出した現在の位置情報を中心にして予め決められた複数の方向に前記地図上に線を引きその各方向の線上で前記抽出した無線の品質度よりも高い品質度の品質分布エリアと重なるまでの距離を算出し、その算出した距離を基に前記複数の方向の中で前記中心とした現在の位置情報から一番近い方向を抽出することにより前記携帯端末の現在位置から一番近い地点の方向と距離とを求める抽出手段と、前記求めた方向と距離とを含む前記品質良好位置情報を要求元の前記携帯端末に返信する返信手段と、を有することを特徴としている。
【０００８】
また、本発明の第２の無線品質良好表示方式は、複数の携帯端末と、複数の基地局と、前記基地局のエリア情報を管轄する移動交換網とを備えた移動交換網携帯端末システムにおける無線品質良好表示方式において、前記移動交換網にインターネットを介して接続されたサーバを備え、前記携帯端末は、基地局からの電波の強度のレベルを無線品質として算出する算出手段と、地球を周回する複数の衛星から送られる信号に基づいて前記携帯端末自身の現在の位置情報を作成する検出手段と、前記無線品質と前記現在の位置情報とを含む情報を要求信号に乗せて無線品質良好位置情報の要求を行う要求手段と、前記要求手段により要求した無線品質良好位置情報を画面に表示する表示手段と、を有し、前記サーバは、各前記基地局からの複数の無線の品質度の内で前記基地局の無線の品質度から所定の値減少した範囲に入った無線の品質度のエリアに対応した品質分布エリアを，地図上にエリア識別情報毎に表示した情報を保存したデータベースを備え、前記無線品質良好位置情報の要求を受信すると前記無線品質と前記現在の位置情報とを前記要求信号から抽出しその抽出した現在の位置情報を中心にして予め決められた複数の方向に前記地図上に線を引きその各方向の線上で前記抽出した無線の品質度よりも高い品質度の品質分布エリアと重なるまでの距離を算出し、その算出した距離を基に前記複数の方向の中で前記中心とした現在の位置情報から一番近い方向を抽出しその抽出した方向と距離とを基に前記携帯端末の現在位置から一番近い地点までの周辺地図を前記データベースに保存された地図から抽出する抽出手段と、前記携帯端末の現在位置から前記抽出手段により抽出した地点までの周辺地図を含む前記品質良好位置情報を要求元の前記携帯端末に返信する返信手段と、を有することを特徴としている。
【０００９】
更に、上記の第２の無線品質良好表示方式において、前記品質良好位置情報は、前記算出した方向と距離とを含むことを特徴としている。
【００１０】
更に、上記の第２の無線品質良好表示方式において、前記周辺地図には、前記品質分布エリアを含むことを特徴としている。
【００１１】
更に、上記の第１または第２の無線品質良好表示方式において、前記品質良好位置情報は、前記抽出した地点の無線の品質度を含むことを特徴としている。
【００１２】
更に、上記の第１または第２の無線品質良好表示方式において、前記携帯端末は、呼設定要求時に前記検出手段で作成した位置情報と前記エリア識別情報と前記無線品質とを含む品質分布登録情報を呼設定要求信号に載せて送信する送信手段を有し、前記移動交換網は、前記呼設定要求信号を受信すると前記品質分布登録情報を抽出して前記サーバに転送する転送手段を有し、前記サーバは、前記品質分布登録情報を受信すると前記品質分布登録情報をエリア識別情報毎に位置品質情報として蓄積する蓄積手段と、前記蓄積手段で蓄積した位置品質情報基に地図上に前記エリア識別情報毎に無線品質をドットでうずめそのうずめたドットをなでていくことでエリア内の品質分布図を作成する作成手段と、前記作成手段で作成した品質分布図を前記品質分布エリアとして前記データベースに保存する保存手段と、を有することを特徴としている。
【００１３】
また、本発明の第１の無線品質良好表示方法は、複数の携帯端末と、複数の基地局と、前記基地局のエリア情報を管轄する移動交換網とを備えた移動交換網携帯端末システムにおける無線品質良好表示方法であって、前記移動交換網にインターネットを介して接続されたサーバを準備し、そのサーバに各前記基地局からの複数の無線の品質度の内で前記基地局の無線の品質度から所定の値減少した範囲に入った無線の品質度のエリアに対応した品質分布エリアを，地図上にエリア識別情報毎に表示した情報を保存させ、前記携帯端末は、操作パネルから無線品質良好位置情報の要求が入力されると、前記基地局からの電波の強度をレベルで算出した無線品質と地球を周回する複数の衛星から送られる信号に基づいて作成した現在の位置情報とを含む情報を要求信号に乗せて前記無線品質良好位置情報の要求を行い、前記サーバは、前記要求信号を受信すると前記無線品質と前記現在の位置情報とを前記要求信号から抽出しその抽出した現在の位置情報を中心にして予め決められた複数の方向に前記地図上に線を引きその各方向の線上で前記抽出した無線の品質度よりも高い品質度の品質分布エリアと重なるまでの距離を算出し、その算出した距離を基に前記複数の方向の中で前記中心とした現在の位置情報から一番近い方向を抽出することにより前記携帯端末の現在位置から一番近い地点の方向と距離とを求め、前記求めた方向と距離とを含む前記品質良好位置情報を要求元の前記携帯端末に返信し、前記携帯端末は、前記サーバから前記品質良好位置情報を受信するとその受信した無線品質良好位置情報を画面に表示することを特徴としている。
【００１４】
また、本発明の第２の無線品質良好表示方法は、複数の携帯端末と、複数の基地局と、前記基地局のエリア情報を管轄する移動交換網とを備えた移動交換網携帯端末システムにおける無線品質良好表示方法であって、前記移動交換網にインターネットを介して接続されたサーバを準備し、そのサーバに各前記基地局からの複数の無線の品質度の内で前記基地局の無線の品質度から所定の値減少した範囲に入った無線の品質度のエリアに対応した品質分布エリアを，地図上にエリア識別情報毎に表示した情報を保存させ、前記携帯端末は、操作パネルから無線品質良好位置情報の要求が入力されると、前記基地局からの電波の強度をレベルで算出した無線品質と地球を周回する複数の衛星から送られる信号に基づいて作成した現在の位置情報とを含む情報を要求信号に乗せて前記無線品質良好位置情報の要求を行い、前記サーバは、前記要求信号を受信すると前記無線品質と前記現在の位置情報とを前記要求信号から抽出しその抽出した現在の位置情報を中心にして予め決められた複数の方向に前記地図上に線を引きその各方向の線上で前記抽出した無線の品質度よりも高い品質度の品質分布エリアと重なるまでの距離を算出し、その算出した距離を基に前記複数の方向の中で前記中心とした現在の位置情報から一番近い方向を抽出しその抽出した方向と距離とを基に前記携帯端末の現在位置から一番近い地点までの周辺地図を前記データベースに保存された地図から抽出し、前記携帯端末の現在位置から前記抽出した地点までの周辺地図を含む前記品質良好位置情報を要求元の前記携帯端末に返信し、前記携帯端末は、前記サーバから前記品質良好位置情報を受信するとその受信した無線品質良好位置情報を画面に表示することを特徴としている。
【００１５】
更に、上記の第２の無線品質良好表示方法において、前記品質良好位置情報は、前記算出した方向と距離とを含むことを特徴としている。
【００１６】
更に、上記の第２の無線品質良好表示方法において、前記周辺地図には、前記品質分布エリアを含むことを特徴としている。
【００１７】
更に、上記の第１または第２の無線品質良好表示方法において、前記品質良好位置情報は、前記抽出した地点の無線の品質度を含むことを特徴としている。
【００１８】
更に、上記の第１または第２の無線品質良好表示方法において、前記無線品質良好位置情報の要求は、前記操作パネル上の専用ボタンを押下することで発生することを特徴としている。
【００１９】
更に、上記の第１または第２の無線品質良好表示方法において、前記携帯端末は、呼設定要求時に前記検出手段で作成した位置情報と前記エリア識別情報と前記無線品質とを含む品質分布登録情報を呼設定要求信号に載せて送信し、前記移動交換網は、前記呼設定要求信号を受信すると前記品質分布登録情報を抽出して前記サーバに転送し、前記サーバは、前記品質分布登録情報を受信すると前記品質分布登録情報をエリア識別情報毎に位置品質情報として蓄積し、やがて品質分布作成指示が入力されると前記蓄積した位置品質情報基に地図上に前記エリア識別情報毎に無線品質をドットでうずめそのうずめたドットをなでていくことでエリア内の品質分布図を作成し、前記作成した品質分布図を前記品質分布エリアとして前記データベースに保存することを特徴としている。
【００２０】
【発明の実施の形態】
次に、本発明の実施の形態について、図面を参照して説明する。
【００２１】
図１を参照すると、本発明の実施の形態におけるシステム構成を示しており、本実施の形態は、ＧＰＳ搭載の携帯電話端末である複数の携帯端末１と、複数の基地局２と、無線品質分布サーバ３と、基地局２から電波の届く範囲であって基地局２毎の位置登録情報に対応した複数の位置登録エリア４と、携帯端末の位置情報の管理、携帯端末１からの呼設定や切断、認証等を行う移動交換網５と、携帯端末１の位置情報を登録し管理しているＨＬＲ５１と、公衆電話網６と、ＩＰプロトコルの通信網であるインターネット７と、地球を周回する複数の衛星８とから構成される。
【００２２】
図２を参照すると、図１の無線品質分布サーバ３は、サーバ、ワークステーション等の情報処理装置である内部構成を示し、プロセッサ（ＣＰＵ）によりプログラム制御で動作する制御部３１と、インターネット７とのデータのやり取りを行うインタフェース部３２と、携帯端末１毎に位置情報と無線品質の情報とを管理している位置情報データベース３３と、地図情報データベース３４と、品質分布データベース３５と、方角数値対応テーブル３６と、から構成される。
【００２３】
図２の位置品質情報データベース３３と全国の地図情報を保存している地図情報データベース３４と品質分布データベース３５とは、読み出し書き込みのできる不揮発性の記録媒体装置（例えば、磁気ディスク）である。
【００２４】
図４を参照すると、図２の位置品質情報データベース３３の構成を示しており、エリア識別情報（基地局の識別番号）毎に基地局からの受信電波の感度レベル（品質度）を全て収集しており、ユーザが携帯端末１を接続するときに無線品質分布サーバ３に送信される品質分布登録情報により収集される。
【００２５】
図５を参照すると、図２の品質分布データベース３５の内容を示しており、携帯端末１から送信される端末の位置情報（基地局の位置情報を含む）を基に作成されるある地域の各基地局のエリア内における品質度（基地局からの受信電波の感度レベルの平均値）を地図上に示した分布図である。
【００２６】
図６を参照すると、図２の方角数値対応テーブル３６の構成を示しており、数値と方角と角度（この場合の角度とは、方角を決定するための角度の範囲を示す）との関係を示したテーブルである。なお、方角数値対応テーブル３６は、あらかじめ準備されており、無線品質分布サーバ３が立ち上がったときに図示していないメモリ（例えばＲＡＭ）内に図示していない不揮発性の記憶部（例えば、磁気ディスク）からロードされる。
【００２７】
図２の無線品質分布サーバ３の制御部３１は、携帯端末１からの発信情報を基に位置情報データベース３３に品質情報を蓄積し、携帯端末１からの無線品質良好情報の要求に対し、位置情報の計算を行い通知する手段を有する。
【００２８】
図３を参照すると、携帯端末１で特徴のある点だけを示した構成図であって、操作パネル上の無線品質良好位置要求ボタン１１と、要求した無線品質良好位置情報等が表示される表示部１２（例えば、ＬＣＤ）とから構成される。
【００２９】
図７を参照すると、携帯端末１が無線品質分布サーバ３から受信した方角数値と表示部２１に表示する矢印の方向との関係を示す方角表示対応テーブル内の構成を示しており、方角表示テーブルは、携帯端末１の図示していない不揮発性メモリ（例えば、フラッシュメモリ）内のエリアに割り当てられている。従って、携帯端末１の方角表示テーブル内の方角数値は、無線品質分布サーバ３の方角数値対応テーブル３６の方角数値に対応していることになる。
【００３０】
携帯端末１は、地球上の起動でかつ精度の高い情報を得るために、常に、地球上の起動を周回する複数の衛星８から送られる信号に基づいて位置計算を実行するＧＰＳ（ＧｌｏｂａｌＰｏｓｉｔｉｏｎｉｎｇＳｙｓｔｅｍ）が利用される。すなわち、携帯端末１は、衛星８からの信号を図示していないＧＰＳ受信機で受信し、受信した信号から位置情報を抽出し、一時的に内部メモリ（例えば、ＲＡＭ）に最新情報として保存する。また、携帯端末１が、常に、基地局２からの電波の強さを携帯端末１の表示部１２に表示すると共に、無線の品質度（以降、単に品質度と呼ぶ場合がある）としてレベル（例えば、７段階の数値で高ければ品質がよい）に算出し、内部メモリに最新情報として保存する。また、携帯端末１は、電源ＯＮ時、ハンドオーバー等により基地局のエリア識別情報が基地局２から通知されることになる（この場合、移動交換網５のＨＬＲ５１には、携帯端末１の位置がわかるように保存される）が、この基地局２のエリア識別情報も内部メモリに最新情報として保存される。携帯端末１が移動交換網５、公衆電話網６等に接続するときに、内部メモリに保存されている、基地局のエリア識別情報とＧＰＳから得た位置情報と無線品質（無線の品質度）とが、移動交換網５経由で無線品質分布サーバ３に送信される。
【００３１】
次に、図１〜図７を参照して、本発明の実施の形態の動作について説明する。
【００３２】
品質分布サーバ３の感度分布データベース３５は、予め提供する側が準備してもよいし、自動的に作成（更新）するようにしても良い。自動的に、無線分布サーバ３が品質分布データベース３５を作成（更新）する場合の動作について、説明する。
【００３３】
各携帯端末１が呼設定要求時に衛星８から得た現在の端末位置情報（現在地「緯度、経度」）と予め接続すべき基地局２から通知されているエリア識別情報と無線品質情報（現在の電波の強度を示す値）とを呼設定要求信号に乗せて送信する（図８のシーケンスＳ１０１）。
【００３４】
すると、基地局２を介して呼設定を受信した移動交換網５は、現在地とエリア識別情報と無線品質情報とを含む品質分布登録情報を、インターネット７を介して無線品質分布サーバ３に送信する（シーケンスＳ１０２）。
【００３５】
インタフェース３２を介して品質分布登録情報を受信した無線品質分布サーバ３の制御部３１は、品質分布登録情報を基に位置品質情報データベース３３内の該当するエリア識別情報のエリアにエリア識別情報を、位置情報に現在地を、品質度に無線品質情報を、それぞれ格納することにより位置品質情報データベース３３に蓄積する（シーケンスＳ１０３）。この場合、基地局の品質度は、蓄積した無線品質情報（品質度）の内で基地局自身の位置情報に対応する品質度になる。
【００３６】
このようにして、蓄積した情報をある時期に品質分布エリアを作成するように無線品質分布サーバ３の図示していないキーボードから無線品質分布サーバ３の管理者がコマンド入力すると、無線品質分布サーバ３の制御部３１は、図示していないメモリ内に地図情報データベース３４から基地局の位置が入った地図を展開し、基地局２から例えば、品質度が−２以内のデータを持つ位置情報を品質分布データベース３５の地図にドットし、基地局内の全てのドットをうずめ、ドットをなでていくことで基地局の品質分布エリアを決定し、更に、全国全ての基地局に対して同じように繰り返すことにより、図５に示すような無線品質分布のエリアを表示した全国展開の品質分布地図を作成する。この場合、エリア識別情報および無線品質情報（エリア内の平均品質度）も地図上に登録する。更に、制御部３１は、メモリ内に作成した品質分布地図を品質分布データベース３５に正式な情報として登録する。
【００３７】
なお、品質分布データベース３５を作成するに当たって、品質分布エリア内を品質度の−２以内の範囲で埋め尽くすようにしたが、０以内、−１以内、−２以内という風に１つの基地局に対して複数のエリアを設けても良い（例えば、基地局の品質度が７であれば、品質度７、品質度６、品質度５の範囲の品質分布エリアが品質分布データベース３５に登録される）。
【００３８】
次に、携帯端末１の無線品質良好位置要求ボタン１１を押下した場合の動作について説明する。
【００３９】
携帯端末１の無線品質良好位置要求ボタン１１が押下されると、携帯端末１は、ＧＰＳから得た現在の端末位置情報（現在地「緯度、経度」）と予め接続すべき基地局から通知されているエリア識別情報と無線品質情報（現在の電波の強度を示す値）とを内部メモリから読み出して無線品質良好位置情報要求信号に乗せて無線品質分布サーバ３宛に無線品質良好位置情報の要求を基地局２、移動交換網５経由で行う（図９のシーケンスＳ２０１，Ｓ２０２）。この場合、あて先である無線品質分布サーバ３宛は、携帯端末１の不揮発性メモリに予め登録されている。
【００４０】
インタフェース３２を介して無線品質良好位置要求を受信した無線品質分布サーバ３の制御部３１は、要求元の携帯端末１のエリア識別情報と無線品質情報と現在地とを抽出する（図８のステップＳ２１１）。
【００４１】
無線品質分布サーバ３の制御部３１は、現在地を中心（中心となる座標「緯度、経度」）に図６（ｂ）のような各方向への線を品質分布データベース３５の品質分布地図上に引き、現在地の品質度よりも高い品質度を持つ品質分布エリアと重なる地点（座標）を各方向毎に求め、それぞれの方向毎の距離を算出する（ステップＳ２１３）。なお、例では、８方向としたが、方向の数は限定しない。
【００４２】
更に、制御部３１は、８方向の内で一番近い方角を抽出し、抽出した方角を方角数値対応テーブル３６に従った方向数値に変換する（ステップＳ２１３）。
【００４３】
更に、制御部３１は、現地点から移動するまでの周辺地図を地図情報データベース３４から抽出し、抽出した地図上に現地点を示すマークと移動したときの品質度と移動先のマークと移動先までの距離とを付加する（ステップＳ２１４）。
【００４４】
更に、制御部３１が要求のあった情報を要求元の携帯端末1に送信することになるが、品質度が悪すぎるとデータ量の多い周辺地図が携帯端末1に対して届かないことが考えられるので、制御部３１は、距離と移動したときの品質度と方向数値とを含む方向情報と、周辺地図とを別々にして送信する（図８のステップＳ２１５，図１０のシーケンスＳ２２１，Ｓ２２２）。
【００４５】
周辺地図を受信した携帯端末１は、受信した情報を、表示部１２に表示する。この場合、方向数値を受信した場合には、不揮発性のメモリに格納されている方角表示テーブルを基に点滅すべき表示を算出して、表示部１２に方向を示す表示を点滅させ（「１」という情報が来れば、北「真上」を指すようにする）、周辺地図を受信した場合には、受信した地図をそのまま表示部１２に表示する。すなわち、携帯端末１は、無線品質良好位置要求ボタン１１が押下されると、無線品質良好位置情報を無線品質分布サーバ３から受信し、その受信した無線品質良好位置情報を表示部１２に表示することになる。
【００４６】
なお、上記のステップＳ２１４の説明において、制御部３１は、現地点から移動するまでの周辺地図を地図情報データベース３４から抽出するようにしたが、品質分布データベース３５から抽出するようにしても良い。すると、周辺地図には、上記の情報のほかに品質分布エリアとそのエリアの品質度とが入ることになる。
【００４７】
以上説明したように、ユーザは、データ通信を行う際、携帯端末１の表示部１２に表示される方向に移動することにより、接続先とスムーズなデータの転送を実現することができる。
【００４８】
すなわち、携帯端末１の無線品質良好位置要求ボタン１１がユーザに押下されることにより、無線品質分布サーバ３は、携帯端末１からの無線品質良好位置情報の要求を受け取り、携帯端末１の現在地の無線品質とその周辺の無線品質を比較して、どの方角へどのくらいの距離を移動すれば無線品質がどのくらいのレベルまで上がるかを通知して表示部１２に表示させると共に、携帯端末１の現在地から移動先の地点までの周辺地図を携帯端末１の表示部１２に表示させるので、例え、現在地の受信感度が悪すぎてデータ量の多い周辺地図が表示できなかったとしても、方向と距離とを携帯端末１の表示部１２に表示させるので、無線品質の良い場所に移動させることができる。
【００４９】
また、データ量の多い地図情報等を無線品質分布サーバ３内に保存し、必要時に必要な周辺地図だけを送るようにしているため、携帯端末は、身軽な状態で、品質良好位置のサービスを受けることができる。
【００５０】
また、上記のように無線品質良好位置要求ボタン１１をワンタッチで押すことにより、無線品質良好位置情報を画面に表示してくれるので、操作上容易である。
【００５１】
また、この表示により、移動が可能であれば、その場所まで移動することによりリトライが発生しなくて不足のない通信が可能となり、ユーザにとって、接続時間によって課金されるデータ通信の場合には、通信時間が短くなり、通信料金が少なくてすむことができる。
【００５２】
また、呼設定時に品質分布登録情報（エリア識別情報、無線品質情報、現在地）を無線品質分布サーバ３に送信するようにしているため、電波の無線品質が悪い位置を事業者が把握することができ、今後の基地局設置の計画の参考データとして用いることができる。
【００５３】
【発明の効果】
以上説明したように、本発明は、携帯端末から無線品質良好位置を要求することで、サーバで現在地よりも品質の良い位置を自動的に抽出し、その抽出した無線品質良好位置情報を携帯端末の画面に表示するため、無線品質の良い地点に移動してすることができ、良い環境の基で通信ができるという効果がある。
【００５４】
また、本発明は、携帯端末から無線品質良好位置を要求することで、サーバで現在地よりも品質の良い位置を自動的に抽出し、その抽出した無線品質良好位置情報を携帯端末の画面に表示するため、その場所まで移動することによりリトライが発生しなくて不足のない通信が可能となり、ユーザにとって、接続時間によって課金されるデータ通信の場合には、通信時間が短くなり、通信料金が少なくてすむことができるという効果がある。
【００５５】
また、本発明は、呼設定時に送信する品質分布登録情報（エリア識別情報、無線品質情報、現在地）をサーバが収集しているため、電波の無線品質が悪い位置を事業者が把握することができ、今後の基地局設置の計画の参考データとして用いることができるという効果がある。
【００５６】
また、本発明は、データ量の多い地図情報等をサーバ側に保存し、必要時に必要な周辺地図だけを送るようにしているため、携帯端末は、身軽な状態で、品質良好位置のサービスを受けることができるという効果がある。
【図面の簡単な説明】
【図１】本発明の実施の形態のシステム構成を示すブロック図である。
【図２】図１の無線品質分布サーバ内の構成を示すブロック図である。
【図３】図１の携帯端末の外観構造を示すブロック図である。
【図４】図１の無線品質分布サーバの位置品質情報データベース内の構成の概略を示す構成概略図である。
【図５】図１の無線品質分布サーバの品質分布データベース内の無線品質分布地図作成時におけるある地域の各エリア（ゾーン）の無線品質度の分布である品質分布エリアを示す構成概略図である。
【図６】図１の無線品質分布サーバの方角対応テーブルの構成と現在地の方角とを示す構成概略図である。
【図７】図１の携帯端末の方角表示テーブル内の構成の概略を示す構成外略図である。
【図８】図１の無線品質分布サーバが携帯端末からの無線品質良好位置情報要求を受信した時に動作するフローチャートである。
【図９】携帯端末と移動交換網と無線品質分布サーバと間での移動端末接続時に送信される品質分布登録情報のやり取りの動作を示すシーケンス図である。
【図１０】携帯端末と移動交換網と無線品質分布サーバと間での携帯端末の無線品質良好位置情報要求時おける情報のやり取りの動作を示すシーケンス図である。
【符号の説明】
１携帯端末
２基地局
３無線品質分布サーバ
４エリア
５移動交換網
６公衆電話網
７インターネット
８衛星
１１無線品質良好位置要求ボタン
１２表示部
３１制御部
３２インタフェース部
３３位置品質情報データベース
３４地図情報データベース
３５品質分布データベース
３６方角数値対応テーブル
５１ＨＬＲ[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a wireless terminal quality display method and method for a portable terminal.And serverIn particular, when a request for good wireless quality location information is made from a portable terminal, the good quality wireless location information is calculated (extracted) by a server connected to the mobile switching network via the Internet and displayed on the screen of the portable terminal. Wireless quality good indication method and methodAnd serverAbout.
[0002]
[Prior art]
As a technology related to the strength of radio waves in the prior art, it has been disclosed that radio waves from a base station are displayed on the display screen of a mobile terminal as a level of radio wave strength at the current location.
[0003]
[Problems to be solved by the invention]
However, the data transfer rate of the next generation mobile phone is realized from 384 kbps to 2 Mbps. Therefore, in order to transmit and receive data using this speed, one condition is that the quality of radio waves from the base station is good.
[0004]
In other words, in mobile terminal systems that require high transfer speeds, it is necessary to move to a location where the radio field intensity is stronger than the current position as much as possible. Then, there is a problem that you do not know where to move.
[0005]
In view of the above problems, an object of the present invention is to move to a point where the radio quality is as good as possible from the current position when it is felt that radio wave reception sensitivity is poor.
[0006]
Another object of the present invention is to provide a moving service to a place with good wireless quality in consideration of the capacity that can be stored in the mobile terminal.
[0007]
[Means for Solving the Problems]
  In order to achieve the above object, a first wireless quality good display method of the present invention is a mobile comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network that controls area information of the base stations. In a wireless quality good display method in a switching network mobile terminal system, the mobile terminal includes a server connected to the mobile switching network via the Internet, and the mobile terminal calculates a radio wave intensity level as a radio quality. A request signal including means, detection means for creating current location information of the mobile terminal itself based on signals sent from a plurality of satellites orbiting the earth, and the wireless quality and the current location information Requesting means for requesting the wireless quality good position information on the board, and display means for displaying the wireless quality good position information requested by the requesting means on the screen; From the serial base stationpluralWireless qualityA quality distribution area corresponding to an area of radio quality within a range reduced by a predetermined value from the radio quality of the base station within,Displayed for each area identification information on the mapinformationWhen the request for the location information with good radio quality is received, the radio quality and the current location information are extracted from the request signal and extracted.PresentLocation informationDraw a line on the map in a plurality of predetermined directions centered on theSaidExtractedQuality distribution area with higher quality than wireless qualityIs calculated from the current position of the mobile terminal by extracting the closest direction from the current position information as the center among the plurality of directions based on the calculated distance.Closest pointFind direction and distanceExtraction means and,in frontRecordSoughtReply means for returning the good quality position information including the direction and the distance to the requesting mobile terminal.
[0008]
  A second wireless quality good display method according to the present invention is a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network having jurisdiction over the area information of the base stations. In the wireless quality good display system, the mobile terminal includes a server connected to the mobile switching network via the Internet, the mobile terminal calculates a radio wave intensity level from a base station as wireless quality, and orbits the earth. Detecting means for creating current position information of the mobile terminal itself based on signals sent from a plurality of satellites, and information including the wireless quality and the current position information is placed on a request signal and the wireless quality good position Requesting means for requesting information, and display means for displaying on the screen the wireless quality good position information requested by the requesting means, wherein the server receives information from each base station.pluralWireless qualityA quality distribution area corresponding to an area of radio quality within a range reduced by a predetermined value from the radio quality of the base station within,Displayed for each area identification information on the mapinformationWhen the request for the location information with good radio quality is received, the radio quality and the current location information are extracted from the request signal and extracted.PresentLocation informationDraw a line on the map in a plurality of predetermined directions centered on theSaidExtractedQuality distribution area with higher quality than wireless qualityIs calculated based on the calculated distance, and the closest position is extracted from the current position information as the center among the plurality of directions, and the extracted direction and distance are used to calculate the distance. From the current location of the mobile deviceClosest pointAround mapExtracting from the map stored in the database and the good quality location information including the surrounding map from the current position of the portable terminal to the point extracted by the extracting means is returned to the requesting portable terminal And a reply means.
[0009]
Furthermore, in the second wireless quality good display method, the good quality position information includes the calculated direction and distance.
[0010]
Furthermore, in the second wireless quality good display method, the surrounding map includes the quality distribution area.
[0011]
Further, in the first or second wireless quality good display method, the good quality position information includes a wireless quality level of the extracted point.
[0012]
  Furthermore, in the first or second wireless quality good display method, the portable terminal is configured to register the quality distribution registration information including the position information, the area identification information, and the wireless quality created by the detecting unit when a call setup request is made. The mobile switching network has a transfer means for extracting the quality distribution registration information and transferring it to the server when receiving the call setting request signal, The server receives the quality distribution registration information, stores the quality distribution registration information as position quality information for each area identification information, and the area identification on the map based on the position quality information stored in the storage means Sprinkle wireless quality with dots for each piece of informationBy stroking that spoiled dotIt has a creation means for creating a quality distribution map in an area, and a storage means for saving the quality distribution chart created by the creation means as the quality distribution area in the database.
[0013]
  A first wireless quality good display method of the present invention is a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network that manages area information of the base stations. A wireless quality good display method comprising: preparing a server connected to the mobile switching network via the Internet, and sending the server from each base stationpluralWireless qualityA quality distribution area corresponding to an area of radio quality within a range reduced by a predetermined value from the radio quality of the base station within,Displayed for each area identification information on the mapinformationWhen the request for good radio quality position information is input from the operation panel, the mobile terminal transmits the radio quality calculated from the base station in terms of level and the multiple satellites orbiting the earth. The information including the current position information created based on the received signal is placed on the request signal to request the position information with good radio quality, and when the server receives the request signal, the server receives the radio quality and the current position. Information is extracted from the request signal and extracted.PresentLocation informationDraw a line on the map in a plurality of predetermined directions centered on theSaidExtractedQuality distribution area with higher quality than wireless qualityIs calculated from the current position of the mobile terminal by extracting the closest direction from the current position information as the center among the plurality of directions based on the calculated distance.Closest pointFind the direction and distance ofThe aboveSoughtThe good quality position information including the direction and the distance is returned to the requesting portable terminal, and when the portable terminal receives the good quality position information from the server, the received good quality position information is displayed on the screen. It is characterized by doing.
[0014]
  The second wireless quality good display method of the present invention is a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network that manages area information of the base stations. A wireless quality good display method comprising: preparing a server connected to the mobile switching network via the Internet, and sending the server from each base stationpluralWireless qualityA quality distribution area corresponding to an area of radio quality within a range reduced by a predetermined value from the radio quality of the base station within,Displayed for each area identification information on the mapinformationWhen the request for good radio quality position information is input from the operation panel, the mobile terminal transmits the radio quality calculated from the base station in terms of level and the multiple satellites orbiting the earth. The information including the current position information created based on the received signal is placed on the request signal to request the position information with good radio quality, and when the server receives the request signal, the server receives the radio quality and the current position. Information is extracted from the request signal and extracted.PresentLocation informationDraw a line on the map in a plurality of predetermined directions centered on theSaidExtractedQuality distribution area with higher quality than wireless qualityIs calculated based on the calculated distance, and the closest position is extracted from the current position information as the center among the plurality of directions, and the extracted direction and distance are used to calculate the distance. From the current location of the mobile deviceClosest pointAround mapIs extracted from the map stored in the database, and the good-quality position information including a peripheral map from the current position of the mobile terminal to the extracted point is returned to the requesting mobile terminal, and the mobile terminal When the good quality location information is received from the server, the received good radio quality location information is displayed on a screen.
[0015]
Furthermore, in the second wireless quality good display method, the good quality position information includes the calculated direction and distance.
[0016]
Furthermore, in the second wireless quality good display method, the surrounding map includes the quality distribution area.
[0017]
Furthermore, in the first or second radio quality good display method, the good quality position information includes a radio quality level of the extracted point.
[0018]
Furthermore, in the first or second wireless quality good display method, the request for the wireless quality good position information is generated by pressing a dedicated button on the operation panel.
[0019]
  Furthermore, in the first or second radio quality good display method, the portable terminal may include the quality distribution registration information including the position information, the area identification information, and the radio quality created by the detection unit when a call setup request is made. When the mobile switching network receives the call setting request signal, the mobile switching network extracts the quality distribution registration information and transfers it to the server. The server transmits the quality distribution registration information. When received, the quality distribution registration information is accumulated as position quality information for each area identification information, and when a quality distribution creation instruction is input, radio quality is determined for each area identification information on a map based on the accumulated position quality information. Sparrow with dotsBy stroking that spoiled dotA quality distribution chart in the area is created, and the created quality distribution chart is stored in the database as the quality distribution area.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0021]
Referring to FIG. 1, a system configuration according to an embodiment of the present invention is shown. This embodiment is a mobile phone terminal equipped with GPS, a plurality of mobile terminals 1, a plurality of base stations 2, and wireless quality. Distribution server 3, a plurality of location registration areas 4 corresponding to location registration information for each base station 2 within a range where radio waves reach from base station 2, management of location information of portable terminals, call setting from portable terminal 1 Orbiting, disconnecting, authenticating, etc., HLR 51 for registering and managing the location information of the mobile terminal 1, public telephone network 6, the Internet 7 as an IP protocol communication network, and orbiting the earth. It comprises a plurality of satellites 8.
[0022]
Referring to FIG. 2, the wireless quality distribution server 3 in FIG. 1 shows an internal configuration that is an information processing apparatus such as a server or a workstation, and includes a control unit 31 that operates by program control by a processor (CPU), an Internet 7, An interface unit 32 for exchanging data, a position information database 33 for managing position information and wireless quality information for each portable terminal 1, a map information database 34, a quality distribution database 35, and numerical values for directions And a table 36.
[0023]
The position quality information database 33, the map information database 34 storing the national map information, and the quality distribution database 35 in FIG. 2 are non-volatile recording medium devices (for example, magnetic disks) that can be read and written.
[0024]
Referring to FIG. 4, the configuration of the position quality information database 33 of FIG. 2 is shown, and all the sensitivity levels (quality levels) of received radio waves from the base station are collected for each area identification information (base station identification number). And collected by the quality distribution registration information transmitted to the wireless quality distribution server 3 when the user connects the portable terminal 1.
[0025]
Referring to FIG. 5, the contents of the quality distribution database 35 of FIG. 2 are shown, and each area of a certain area created based on the terminal position information (including the base station position information) transmitted from the mobile terminal 1 is shown. It is the distribution map which showed on the map the quality (average value of the sensitivity level of the received radio wave from the base station) in the area of the base station.
[0026]
Referring to FIG. 6, the configuration of the direction numerical value correspondence table 36 of FIG. 2 is shown, and the relationship between the numerical value, the direction, and the angle (the angle in this case indicates the range of angles for determining the direction) is shown. It is the table shown. The direction numerical value correspondence table 36 is prepared in advance, and a nonvolatile storage unit (for example, a magnetic disk) that is not illustrated in a memory (for example, RAM) that is not illustrated when the wireless quality distribution server 3 is started up. ) Is loaded.
[0027]
The control unit 31 of the wireless quality distribution server 3 in FIG. 2 accumulates quality information in the location information database 33 based on the transmission information from the mobile terminal 1, and responds to the request for good radio quality information from the mobile terminal 1. Means for calculating and notifying information.
[0028]
Referring to FIG. 3, it is a configuration diagram showing only features that are characteristic of the mobile terminal 1, and a display that displays a wireless quality good position request button 11 on the operation panel, requested wireless quality good position information, and the like. It is comprised from the part 12 (for example, LCD).
[0029]
Referring to FIG. 7, there is shown a configuration in a direction display correspondence table showing the relationship between the direction numerical value received by the mobile terminal 1 from the wireless quality distribution server 3 and the direction of the arrow displayed on the display unit 21. Are allocated to an area in a nonvolatile memory (for example, a flash memory) (not shown) of the mobile terminal 1. Therefore, the direction value in the direction display table of the mobile terminal 1 corresponds to the direction value in the direction value correspondence table 36 of the wireless quality distribution server 3.
[0030]
The mobile terminal 1 is a GPS (Global Positioning System) that always executes position calculation based on signals sent from a plurality of satellites 8 that orbit the earth on the earth to obtain highly accurate information on the earth activation. ) Is used. That is, the mobile terminal 1 receives a signal from the satellite 8 by a GPS receiver (not shown), extracts position information from the received signal, and temporarily stores it as the latest information in an internal memory (for example, RAM). . In addition, the mobile terminal 1 always displays the strength of the radio wave from the base station 2 on the display unit 12 of the mobile terminal 1, and at the level (hereinafter, sometimes simply referred to as “quality level”) as the wireless quality level. For example, if the numerical value is high in seven steps, the quality is good) and is stored in the internal memory as the latest information. In addition, when the mobile terminal 1 is powered on, the base station 2 is notified of the area identification information of the base station by handover or the like (in this case, the location of the mobile terminal 1 is in the HLR 51 of the mobile switching network 5). However, the area identification information of the base station 2 is also stored as the latest information in the internal memory. When the mobile terminal 1 connects to the mobile switching network 5, the public telephone network 6, etc., the area identification information of the base station, the location information obtained from the GPS, and the radio quality (radio quality) stored in the internal memory Are transmitted to the wireless quality distribution server 3 via the mobile switching network 5.
[0031]
Next, the operation of the embodiment of the present invention will be described with reference to FIGS.
[0032]
The sensitivity distribution database 35 of the quality distribution server 3 may be prepared in advance by the provider or may be automatically created (updated). An operation when the wireless distribution server 3 automatically creates (updates) the quality distribution database 35 will be described.
[0033]
Each mobile terminal 1 obtains current terminal position information (current location “latitude, longitude”) obtained from the satellite 8 at the time of call setup request, area identification information and radio quality information (current A value indicating the strength of the radio wave) is transmitted on the call setting request signal (sequence S101 in FIG. 8).
[0034]
Then, the mobile switching network 5 that has received the call setting via the base station 2 transmits quality distribution registration information including the current location, area identification information, and radio quality information to the radio quality distribution server 3 via the Internet 7. (Sequence S102).
[0035]
  The control unit 31 of the wireless quality distribution server 3 that has received the quality distribution registration information via the interface 32 sets the area identification information in the area of the corresponding area identification information in the position quality information database 33 based on the quality distribution registration information. The current location is stored in the position information, and the wireless quality information is stored in the quality level, and the position quality information database 33 is stored (sequence S103).In this case, the quality level of the base station is a quality level corresponding to the position information of the base station itself in the accumulated radio quality information (quality level).
[0036]
Thus, when the administrator of the wireless quality distribution server 3 inputs a command from a keyboard (not shown) of the wireless quality distribution server 3 so as to create a quality distribution area at a certain time for the accumulated information, the wireless quality distribution server 3 The control unit 31 develops a map in which the position of the base station is entered from the map information database 34 in a memory (not shown), and the position information having data with a quality level of −2 or less is obtained from the base station 2, for example. Dots on the map of the distribution database 35, sprinkles all dots in the base station, strokes the dots to determine the quality distribution area of the base station, and repeats the same for all base stations nationwide As a result, a nationwide quality distribution map displaying the wireless quality distribution area as shown in FIG. 5 is created. In this case, area identification information and radio quality information (average quality level in the area) are also registered on the map. Further, the control unit 31 registers the quality distribution map created in the memory as formal information in the quality distribution database 35.
[0037]
In creating the quality distribution database 35, the quality distribution area is filled with a range of -2 or less of the quality level, but one base station is in the range of 0, -1, or -2. A plurality of areas may be provided (for example, if the quality level of the base station is 7, a quality distribution area in the range of quality level 7, quality level 6 and quality level 5 is registered in the quality distribution database 35). ).
[0038]
Next, an operation when the wireless quality good position request button 11 of the mobile terminal 1 is pressed will be described.
[0039]
When the wireless quality good position request button 11 of the portable terminal 1 is pressed, the portable terminal 1 is notified from the base station to be connected in advance with the current terminal position information (current location “latitude, longitude”) obtained from the GPS. The area identification information and the wireless quality information (value indicating the current radio wave intensity) are read from the internal memory and placed on the wireless quality good position information request signal to request the wireless quality distribution server 3 for the wireless quality good position information. This is performed via the base station 2 and the mobile switching network 5 (sequences S201 and S202 in FIG. 9). In this case, the address for the wireless quality distribution server 3 is registered in advance in the nonvolatile memory of the mobile terminal 1.
[0040]
The control unit 31 of the wireless quality distribution server 3 that has received the wireless quality good location request via the interface 32 extracts the area identification information, the wireless quality information, and the current location of the requesting mobile terminal 1 (step S211 in FIG. 8). ).
[0041]
  The control unit 31 of the wireless quality distribution server 3 places the line in each direction as shown in FIG. 6B on the quality distribution map of the quality distribution database 35 with the current location as the center (coordinates “latitude and longitude” as the center). The quality level is higher than the current level.Quality distributionA point (coordinate) overlapping with the area is obtained for each direction, and a distance for each direction is calculated (step S213). In the example, eight directions are used, but the number of directions is not limited.
[0042]
Further, the control unit 31 extracts the closest direction among the eight directions, and converts the extracted direction into a direction value according to the direction value correspondence table 36 (step S213).
[0043]
Further, the control unit 31 extracts a surrounding map from the local point until it moves from the map information database 34, a mark indicating the local point on the extracted map, a quality level when moving, a destination mark, and a destination Is added (step S214).
[0044]
Furthermore, the control unit 31 transmits the requested information to the requesting mobile terminal 1, but if the quality level is too low, a surrounding map with a large amount of data may not reach the mobile terminal 1. Therefore, the control unit 31 transmits the direction information including the distance, the quality level when moving and the direction numerical value, and the surrounding map separately (steps S215 in FIG. 8 and sequences S221 and S222 in FIG. 10). .
[0045]
The mobile terminal 1 that has received the surrounding map displays the received information on the display unit 12. In this case, when the direction numerical value is received, a display to be flashed is calculated based on the direction display table stored in the nonvolatile memory, and the display indicating the direction is flashed on the display unit 12 (“1 If the information “” is received, it is pointed to “above” north). When the surrounding map is received, the received map is displayed on the display unit 12 as it is. That is, when the radio quality good position request button 11 is pressed, the mobile terminal 1 receives the radio quality good position information from the radio quality distribution server 3 and displays the received radio quality good position information on the display unit 12. It will be.
[0046]
In the description of step S214 above, the control unit 31 extracts the surrounding map from the local point until it moves from the local point, but may extract it from the quality distribution database 35. Then, in addition to the above information, the surrounding map contains the quality distribution area and the quality level of the area.
[0047]
As described above, when performing data communication, the user can realize smooth data transfer with the connection destination by moving in the direction displayed on the display unit 12 of the mobile terminal 1.
[0048]
That is, when the radio quality good position request button 11 of the mobile terminal 1 is pressed by the user, the radio quality distribution server 3 receives a request for radio quality good position information from the mobile terminal 1 and receives the current location of the mobile terminal 1. Comparing the wireless quality and the wireless quality of the surrounding area, it is displayed on the display unit 12 that the wireless quality is increased to which direction and how much distance is moved, and is displayed on the display unit 12. Since the surrounding map to the destination point is displayed on the display unit 12 of the portable terminal 1, even if the reception map of the current location is too bad to display a surrounding map with a large amount of data, the direction and distance are displayed. Since it displays on the display part 12 of the portable terminal 1, it can be moved to a place with good radio quality.
[0049]
In addition, since the map information with a large amount of data is stored in the wireless quality distribution server 3 and only the necessary surrounding maps are sent when necessary, the mobile terminal can provide a service with a good quality position in a light state. Can receive.
[0050]
In addition, by pressing the wireless quality good position request button 11 with one touch as described above, the wireless quality good position information is displayed on the screen, which is easy in operation.
[0051]
In addition, if it is possible to move by this display, it is possible to perform communication without incurring a retry by moving to that location, and in the case of data communication charged for the connection time for the user, Communication time can be shortened and communication charges can be reduced.
[0052]
Further, since the quality distribution registration information (area identification information, radio quality information, current location) is transmitted to the radio quality distribution server 3 at the time of call setting, the operator can grasp the position where the radio quality of radio waves is bad. It can be used as reference data for future plans for base station installation.
[0053]
【The invention's effect】
As described above, the present invention requests a position with good radio quality from the mobile terminal, and automatically extracts a position with better quality than the current location by the server, and uses the extracted position information with good radio quality as the mobile terminal. Since it is displayed on the screen, it is possible to move to a point with good wireless quality and to communicate on the basis of a good environment.
[0054]
In addition, the present invention requests a location with good radio quality from the mobile terminal, and automatically extracts a location with better quality than the current location by the server, and displays the extracted location information with good radio quality on the screen of the mobile terminal. Therefore, by moving to that location, it is possible to perform communication without incurring retries, and in the case of data communication charged for the connection time for the user, the communication time is shortened and the communication fee is reduced. There is an effect that it can help.
[0055]
Further, according to the present invention, since the server collects quality distribution registration information (area identification information, wireless quality information, current location) transmitted at the time of call setup, the operator can grasp the position where the radio quality of radio waves is bad. It can be used as reference data for future base station installation plans.
[0056]
In addition, since the present invention saves map information with a large amount of data on the server side and sends only the necessary surrounding maps when necessary, the mobile terminal can provide a service of good quality position in a light state. There is an effect that you can receive.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a system configuration according to an embodiment of the present invention.
2 is a block diagram showing a configuration in a wireless quality distribution server in FIG. 1. FIG.
3 is a block diagram showing an external structure of the mobile terminal of FIG. 1. FIG.
4 is a configuration schematic diagram showing an outline of a configuration in a position quality information database of the wireless quality distribution server of FIG. 1;
5 is a schematic configuration diagram showing a quality distribution area that is a distribution of radio quality degrees of each area (zone) in a certain area at the time of creating a radio quality distribution map in the quality distribution database of the radio quality distribution server of FIG. 1. FIG. .
6 is a schematic configuration diagram showing a configuration of a direction correspondence table and a current location direction of the wireless quality distribution server of FIG. 1; FIG.
7 is a schematic configuration diagram showing an outline of a configuration in a direction display table of the mobile terminal of FIG. 1; FIG.
FIG. 8 is a flowchart of operations when the wireless quality distribution server of FIG. 1 receives a wireless quality good position information request from a mobile terminal.
FIG. 9 is a sequence diagram showing an operation of exchanging quality distribution registration information transmitted when a mobile terminal is connected among a mobile terminal, a mobile switching network, and a wireless quality distribution server.
FIG. 10 is a sequence diagram showing an operation of exchanging information among mobile terminals, a mobile switching network, and a wireless quality distribution server when requesting location information of good wireless quality of the mobile terminal.
[Explanation of symbols]
1 Mobile device
2 base stations
3 Wireless quality distribution server
4 areas
5 Mobile switching network
6 Public telephone network
7 Internet
8 satellites
11 Wireless quality good position request button
12 Display section
31 Control unit
32 Interface section
33 Location Quality Information Database
34 Map information database
35 Quality distribution database
36 Directional numerical value correspondence table
51 HLR

Claims

In a radio quality good display method in a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network that controls area information of the base stations,
A server connected to the mobile switching network via the Internet;
The mobile terminal is a calculating means for calculating the radio wave intensity level from the base station as radio quality,
Detection means for creating current position information of the mobile terminal itself based on signals sent from a plurality of satellites orbiting the earth;
Request means for requesting radio quality good position information by putting information including the radio quality and the current position information on a request signal;
Display means for displaying on the screen the wireless quality good position information requested by the requesting means,
The server includes a quality distribution area corresponding to an area of the radio quality level that falls within a predetermined value range from the radio quality level of the base station among a plurality of radio quality levels from the base stations. , Equipped with a database that stores information displayed for each area identification information on the map,
Wherein the radio quality better position a plurality of directions to the receiving and the radio quality and the current location information request it has been determined in advance around the position information of the current extracted by the extraction from the request signal information A line is drawn on the map to calculate the distance until the quality distribution area with a higher quality level than the extracted wireless quality level on the line in each direction, and based on the calculated distance, extracting means for obtaining a current direction and distance of the nearest point from the position of the mobile terminal by extracting the closest direction from the current position information to the center in, a front Symbol determined direction and distance A wireless quality good display method, comprising: reply means for sending back the good quality position information to the requesting mobile terminal.

In a radio quality good display method in a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network that controls area information of the base stations,
A server connected to the mobile switching network via the Internet;
The mobile terminal is a calculating means for calculating the radio wave intensity level from the base station as radio quality,
Detection means for creating current position information of the mobile terminal itself based on signals sent from a plurality of satellites orbiting the earth;
Request means for requesting radio quality good position information by putting information including the radio quality and the current position information on a request signal;
Display means for displaying on the screen the wireless quality good position information requested by the requesting means,
The server includes a quality distribution area corresponding to an area of the radio quality level that falls within a predetermined value range from the radio quality level of the base station among a plurality of radio quality levels from the base stations. , Equipped with a database that stores information displayed for each area identification information on the map,
Wherein the radio quality better position a plurality of directions to the receiving and the radio quality and the current location information request it has been determined in advance around the position information of the current extracted by the extraction from the request signal information A line is drawn on the map to calculate the distance until the quality distribution area with a higher quality level than the extracted wireless quality level on the line in each direction, and based on the calculated distance, A map in which the nearest direction is extracted from the current location information centered at the center and a map from the current location of the mobile terminal to the nearest location based on the extracted direction and distance is stored in the database Extraction means for extracting from,
A wireless quality good display comprising: reply means for returning the good quality position information including a peripheral map from the current position of the portable terminal to the point extracted by the extracting means to the portable terminal requesting method.

The wireless quality good display method according to claim 2, wherein the good quality position information includes the calculated direction and distance.

3. The wireless quality good display method according to claim 2, wherein the peripheral map includes the quality distribution area.

4. The wireless quality good display method according to claim 1, wherein the good quality position information includes a wireless quality level of the extracted point.

The portable terminal has a transmission means for transmitting quality distribution registration information including the position information created by the detection means at the time of call setting request, the area identification information, and the wireless quality on a call setting request signal,
The mobile switching network has transfer means for extracting the quality distribution registration information and transferring it to the server when receiving the call setting request signal;
The server, when receiving the quality distribution registration information, storage means for storing the quality distribution registration information as position quality information for each area identification information;
Creating means for creating a quality distribution map in the area by stroking the dot with the wireless quality for each area identification information on the map based on the position quality information base accumulated by the storage means;
3. The wireless quality good display method according to claim 1, further comprising: a storage unit that stores the quality distribution chart created by the creation unit in the database as the quality distribution area.

A radio quality good display method in a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network having jurisdiction over area information of the base station,
Preparing a server connected to the mobile switching network via the Internet;
In the server, a quality distribution area corresponding to an area of the radio quality level that has fallen within a predetermined value from the radio quality level of the base station among a plurality of radio quality levels from each of the base stations , Save the information displayed for each area identification information on the map,
When a request for good radio quality location information is input from the operation panel, the mobile terminal is based on radio quality calculated from the level of radio waves from the base station and signals sent from a plurality of satellites orbiting the earth. Requesting the wireless quality good position information by placing the information including the current position information created in the request signal,
The server, the map to receive the request signal and the radio quality and the current position information in a plurality of directions previously determined in the extracted around the position information of the current which the extracted from the request signal Draw a line on the line in each direction to calculate the distance until it overlaps with the quality distribution area of the higher quality than the extracted wireless quality ,
Based on the calculated distance, the direction and distance of the closest point from the current position of the mobile terminal are obtained by extracting the closest direction from the current position information centered among the plurality of directions. ,
The good quality position information including the obtained direction and distance is returned to the requesting mobile terminal,
When the mobile terminal receives the good quality position information from the server, the mobile terminal displays the received good radio quality position information on a screen.

A radio quality good display method in a mobile switching network mobile terminal system comprising a plurality of mobile terminals, a plurality of base stations, and a mobile switching network having jurisdiction over area information of the base station,
Preparing a server connected to the mobile switching network via the Internet;
In the server, a quality distribution area corresponding to an area of the radio quality level that has fallen within a predetermined value from the radio quality level of the base station among a plurality of radio quality levels from each of the base stations , Save the information displayed for each area identification information on the map,
When a request for good radio quality location information is input from the operation panel, the mobile terminal is based on radio quality calculated from the level of radio waves from the base station and signals sent from a plurality of satellites orbiting the earth. Requesting the wireless quality good position information by placing the information including the current position information created in the request signal,
The server, the map to receive the request signal and the radio quality and the current position information in a plurality of directions previously determined in the extracted around the position information of the current which the extracted from the request signal Draw a line on the line in each direction to calculate the distance until it overlaps with the quality distribution area of the higher quality than the extracted wireless quality ,
Based on the calculated distance, the closest direction is extracted from the current position information as the center among the plurality of directions, and is closest to the current position of the mobile terminal based on the extracted direction and distance. The surrounding map to the point is extracted from the map stored in the database,
Returning the good quality location information including the surrounding map from the current location of the mobile terminal to the extracted point to the mobile terminal requesting,
When the mobile terminal receives the good quality position information from the server, the mobile terminal displays the received good radio quality position information on a screen.

The wireless quality good display method according to claim 8, wherein the good quality position information includes the calculated direction and distance.

9. The wireless quality good display method according to claim 8, wherein the peripheral map includes the quality distribution area.

10. The wireless quality good display method according to claim 7, wherein the good quality position information includes a wireless quality level of the extracted point.

9. The wireless quality good display method according to claim 7, wherein the request for the wireless quality good position information is generated by pressing a dedicated button on the operation panel.

The portable terminal transmits the call distribution request signal including quality distribution registration information including the location information, the area identification information, and the wireless quality created by the detection unit at the time of the call setting request,
When the mobile switching network receives the call setup request signal, it extracts the quality distribution registration information and transfers it to the server,
When the server receives the quality distribution registration information, the server stores the quality distribution registration information as position quality information for each area identification information. When a quality distribution creation instruction is input, the server stores the quality distribution registration information on the map based on the stored position quality information. Create a quality distribution map in the area by stroking the dots with the wireless quality for each area identification information.
9. The wireless quality good display method according to claim 7, wherein the created quality distribution chart is stored in the database as the quality distribution area.

A server for exchanging data with a plurality of portable terminals via a base station and a mobile switching network,
A quality distribution area corresponding to an area of a radio quality level that falls within a predetermined value range from the radio quality level of the base station among a plurality of radio quality levels from each of the base stations is displayed on the map. It has a database that stores information that displays the distribution of the quality of radio for each area identification information that indicates a station,
Predetermined around the said current position information of when receiving the request signal and radio quality and the current position information extracted by the extraction from the request signal from the mobile terminal makes a request of the radio quality better location Draw a line on the map in a plurality of directions, calculate the distance until the quality distribution area of the quality level higher than the extracted radio quality level on the line in each direction, and based on the calculated distance An extracting means for obtaining a direction and a distance of a point closest to the current position of the mobile terminal by extracting a direction closest to the current position information as the center among a plurality of directions ;
Servers and having a, a reply means for replying the quality good location to the requesting said portable terminal including a front Symbol determined direction and distance.

A server for exchanging data with a plurality of portable terminals via a base station and a mobile switching network,
A quality distribution area corresponding to an area of a radio quality level that falls within a predetermined value range from the radio quality level of the base station among a plurality of radio quality levels from each of the base stations is displayed on the map. It has a database that stores information that displays the distribution of the quality of radio for each area identification information that indicates a station,
Predetermined around the said current position information of when receiving the request signal and radio quality and the current position information extracted by the extraction from the request signal from the mobile terminal makes a request of the radio quality better location Draw a line on the map in a plurality of directions, calculate the distance until the quality distribution area of the quality level higher than the extracted radio quality level on the line in each direction, and based on the calculated distance The database extracts a neighboring map from the current position of the mobile terminal to the nearest point based on the extracted direction and distance from the current position information centered on the center among a plurality of directions. Extracting means for extracting from a map stored in
A server comprising: reply means for returning the good quality position information including a peripheral map from the current position of the portable terminal to the point extracted by the extracting means to the requesting portable terminal.

The server according to claim 15, wherein the good quality position information includes the calculated direction and distance.

The server according to claim 15, wherein the peripheral map includes the quality distribution area.

The server according to claim 14 or 16, wherein the good quality location information includes a radio quality level of the extracted point.