Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP3669978B2 - Mobile communication terminal, standby control method, standby control program - Google Patents
[go: Go Back, main page]

JP3669978B2 - Mobile communication terminal, standby control method, standby control program - Google Patents

Mobile communication terminal, standby control method, standby control program Download PDF

Info

Publication number
JP3669978B2
JP3669978B2 JP2002242440A JP2002242440A JP3669978B2 JP 3669978 B2 JP3669978 B2 JP 3669978B2 JP 2002242440 A JP2002242440 A JP 2002242440A JP 2002242440 A JP2002242440 A JP 2002242440A JP 3669978 B2 JP3669978 B2 JP 3669978B2
Authority
JP
Japan
Prior art keywords
communication
network
standby
receiving means
receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002242440A
Other languages
Japanese (ja)
Other versions
JP2004088154A (en
Inventor
清人 永田
充 村田
昌治 中土
益忠 毛利
浩介 覚野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to JP2002242440A priority Critical patent/JP3669978B2/en
Publication of JP2004088154A publication Critical patent/JP2004088154A/en
Application granted granted Critical
Publication of JP3669978B2 publication Critical patent/JP3669978B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile communication terminal in which power consumption is small and preferable communication can be realized, even when two radio receiving units corresponding to different communication systems are provided. <P>SOLUTION: The mobile communication terminal 1 is provided with a cellular telephone network radio receiving unit 2 and a radio LAN radio receiving unit 3. The terminal 1 detects whether it exists in each of a cellular telephone network zone or a radio LAN zone, from the reception strength of radio waves received by any one in a stand-by operation state, of the units 2 and 3. Also, a fading pitch measuring unit 5 measures the fading pitch from the radio waves received by any one in a stand-by operation state, of both the receiving units. A stand-by control unit 6 controls the stand-by operations of both the receiver units, according to the detection result by a communication network detecting unit 4 and the fading pitch. Thus, the terminal 1 can realize preferable communication according to the moving states thereof and reduce the power consumption. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、移動通信端末に関する。
【0002】
【従来の技術】
近年、携帯電話網と、無線LAN網のように、異なる二つの通信網を利用した通信が可能な移動通信端末が普及してきている。このような移動通信端末は、異なる二つの通信網からの電波をそれぞれ受信するために、二つの無線受信部を備えている。
【0003】
【発明が解決しようとする課題】
上述のように二つの無線受信部を備える従来の移動通信端末においては、その移動状況の変化があっても好適な通信を実現するために、それぞれの無線受信部の待受け動作を常にONにしておく必要がある。その結果、電力を多く消費するという問題点があった。
【0004】
本発明は、このような問題点に鑑みてなされたものであり、二つの無線受信部を備えても、消費電力が少なく、かつ移動状況の変化に対応して好適な通信を実現できる移動通信端末を提供する。
【0005】
【課題を解決するための手段】
上記課題を解決するため、本発明の移動通信端末は、所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、上記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離通信網からの電波を受信する第2の受信手段とを備える移動通信端末において、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段に受信される電波の受信強度に基づいて、上記携帯電話網及び近距離無線網のそれぞれの通信圏内に存在するか否かを検出する通信網検出手段と、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測手段と、上記通信網検出手段による検出結果と、上記フェージングピッチ計測手段によって計測される上記フェージングピッチに基づいて、上記第1の受信手段と上記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御手段とを備え、上記待受け制御手段は、上記待受け制御手段は、上記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、上記第1の受信手段及び上記第2の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記近距離無線網の通信圏内に存在すると判断する場合に、上記第2の受信手段の待受け動作をONにすると共に、上記第1の受信手段の待ち受け動作をOFFにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記携帯電話網の通信圏内のみに存在すると判断する場合に、上記第2の受信手段の待受け動作をOFFにすると共に、上記第1の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の上限閾値より大きい場合に、上記第1の受信手段の待受け動作をONにすると共に、上記第2の受信手段の待受け動作をOFFにすることを特徴としている。
【0006】
また、上記課題を解決するため、本発明の待受け制御方法は、所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、上記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離無線網からの電波を受信する第2の受信手段とを備える移動通信端末の待受け制御方法であって、通信網検出手段が、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段に受信される電波の受信強度に基づいて、上記携帯電話網及び近距離無線網のそれぞれの通信圏内に存在するか否かを検出する通信網検出ステップと、フェージングピッチ計測手段が、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測ステップと、待受け制御手段が、上記通信網検出手段による検出結果と、上記フェージングピッチ計測手段によって計測される上記フェージングピッチに基づいて、上記第1の受信手段と上記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御ステップとを備え、上記待受け制御ステップにおいて、上記待受け制御手段は、上記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、上記第1の受信手段及び上記第2の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記近距離無線網の通信圏内に存在すると判断する場合に、上記第2の受信手段の待受け動作をONにすると共に、上記第1の受信手段の待ち受け動作をOFFにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記携帯電話網の通信圏内のみに存在すると判断する場合に、上記第2の受信手段の待受け動作をOFFにすると共に、上記第1の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の上限閾値より大きい場合に、上記第1の受信手段の待受け動作をONにすると共に、上記第2の受信手段の待受け動作をOFFにすることを特徴としている。
【0007】
これらの本発明によれば、この移動通信端末は、所定の無線通信方式による携帯電話網から電波を受信する第1の受信手段と、上記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離通信網からの電波を受信する第2の受信手段とを備える。更に、この移動通信端末は、通信網検出手段とフェージングピッチ計測手段を備え、通信網検出手段が、第1及び第2の受信手段のそれぞれに受信される電波の受信強度に基づいて、携帯電話網及び近距離通信網のそれぞれの通信圏内に存在するか否かを検出する。また、フェージングピッチ計測手段が、第1及び第2の受信手段のうち、待受け動作中の受信手段によって受信される電波のフェージングピッチを計測する。そして、通信網検出手段による検出結果とフェージングピッチ計測手段によって計測されるフェージングピッチに基づいて、待受け制御手段が第1及び第2の受信手段それぞれの待受け動作のON/OFFを制御する。この「フェージングピッチ」とは、受信される電波の強度変化の周波数を意味し、一般に移動通信端末の移動速度が大きい場合にフェージングピッチは大きくなり、移動速度が小さくなるとフェージングピッチは小さくなる傾向がある。すなわち、本発明によれば、通信網検出手段によって検出される移動通信端末の存在位置における通信可能な通信網にかかわる情報と、フェージングピッチから予想される移動通信端末の移動速度とに基づく移動通信端末の移動状況に応じて、携帯電話網及び近距離通信網のうち、その移動状況に適した通信エリアをもつ無線通信方式を採用する通信網からの電波を待受けできるように、待受け制御手段が第1及び第2の受信手段のそれぞれの待受け動作のON/OFFを制御する。その結果、第1及び第2の受信手段のうち、その移動状況に適した受信手段の待受け動作をONにして好適な通信を実現すると共に、その移動状況に適さない受信手段の待受け動作をOFFにして、移動通信端末の消費電力を少なくできる。
【0008】
また、これらの発明によれば、フェージングピッチが所定の下限閾値より小さく、かつ、近距離通信網の通信圏内に移動通信端末が存在すると判断する場合に、待受け制御手段が、第2の受信手段の待受け動作をONにする。すなわち、移動通信端末が近距離通信網の通信エリアに存在し、その移動速度が小さいと予想される場合には、通信エリアの狭い近距離通信網の通信圏内から抜け出る可能性が少ないので、高速な通信速度による通信が実現できる第2の受信手段の待受け動作をONにすることで、好適な通信が実現できる。
【0009】
更に、これらの発明によれば、フェージングピッチが所定の上限閾値より大きい場合、すなわち移動通信端末の移動速度が大きい場合に、第1の受信手段の待受け動作をONにし、第2の受信手段の待受け動作をOFFにする。すなわち、移動通信端末の高速な移動に対応できる通信エリアの広い携帯電話網からの電波を受信する第1の受信手段のみで待受けを行うので、移動通信端末の消費電力を少なくするとともに、その移動状況に応じた好適な通信を実現できる。
【0010】
また、本発明の移動通信端末においては、上記待受け制御手段は、上記通信網検出手段による上記検出結果に基づいて、上記携帯電話網及び近距離通信網の通信圏外であると判断する場合に、上記第1及び第2の受信手段の待受け動作を所定時間OFFにすることを特徴とすることが好適である。
【0011】
また、本発明の待受け制御方法においては、上記待受け制御ステップにおいて、上記待受け制御手段は、上記通信網検出手段による上記検出結果に基づいて、上記携帯電話網及び近距離通信網の通信圏外であると判断する場合に、上記第1及び第2の受信手段の待受け動作を所定時間OFFにすることが好適である。
【0012】
これらの発明によれば、通信網検出手段による検出結果に基づいて、携帯電話網及び近距離通信網の双方に接続できないと判断する場合には、待受け制御手段が第1及び第2の受信手段の双方を所定時間停止させる。このようにして、いずれの通信網からの電波も受信できない場合に、この移動通信端末はその消費電量を少なくすることができる。
【0013】
また、本発明の待受け制御プログラムは、所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、上記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離通信網からの電波を受信する第2の受信手段とを備える移動通信端末を、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段に受信される電波の受信強度に基づいて、上記携帯電話網及び近距離通信網のそれぞれの通信圏内に存在するか否かを検出する通信網検出手段と、上記第1及び第2の受信手段のうち、待受け動作中の上記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測手段と、上記通信網検出手段による検出結果と、上記フェージングピッチ計測手段によって計測される上記フェージングピッチに基づいて、上記第1の受信手段と上記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御手段として機能させ、上記待受け制御手段は、上記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、上記第1の受信手段及び上記第2の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記近距離無線網の通信圏内に存在すると判断する場合に、上記第2の受信手段の待受け動作をONにすると共に、上記第1の受信手段の待ち受け動作をOFFにし、上記フェージングピッチが上記所定の下限閾値より小さく、かつ、上記通信網検出手段による上記検出結果に基づいて上記携帯電話網の通信圏内のみに存在すると判断する場合に、上記第2の受信手段の待受け動作をOFFにすると共に、上記第1の受信手段の待ち受け動作をONにし、上記フェージングピッチが上記所定の上限閾値より大きい場合に、上記第1の受信手段の待受け動作をONにすると共に、上記第2の受信手段の待受け動作をOFFにする。
【0014】
この発明によれば、この待受け制御プログラムが移動通信端末にインストールされると、待受け制御プログラムが移動通信端末を上記した通信網検出手段と、フェージングピッチ計測手段と、待受け制御手段として機能させる。すなわち、通信網検出手段によって検出される移動通信端末の存在位置における通信可能な通信網にかかわる情報と、フェージングピッチ計測手段によって計測されるフェージングピッチから予想される移動通信端末の移動速度とに基づく移動通信端末の移動状況に応じて、携帯電話網及び近距離通信網のうち、その移動状況に適した通信エリアをもつ無線通信方式を採用する通信網からの電波を待受けできるように、待受け制御手段が第1及び第2の受信手段のそれぞれの待受け動作のON/OFFを制御する。その結果、第1及び第2の受信手段のうち、その移動状況に適した受信手段の待受け動作をONにして、好適な通信を実現するとともに、その移動状況に適さない受信手段の待受け動作をOFFにして、移動通信端末の消費電力を少なくできる。
【0015】
また、この発明によれば、この待受け制御プログラムが移動通信端末に実現させる待受け制御手段が、フェージングピッチが所定の下限閾値より小さく、かつ、近距離通信網の通信圏内に移動通信端末が存在すると判断する場合に、第2の受信手段の待受け動作をONにする。すなわち、移動通信端末が近距離通信網の通信エリアに存在し、その移動速度が小さいと予想される場合には、通信エリアの狭い近距離通信網の通信圏内から抜け出る可能性が少ないので、高速な通信速度による通信が実現できる第2の受信手段の待受け動作をONにすることで、好適な通信が実現できる。
【0016】
更に、この発明によれば、この待受け制御プログラムが移動通信端末に実現させる待受け制御手段が、フェージングピッチが所定の上限閾値より大きい場合、すなわち移動通信端末の移動速度が大きい場合に、第1の受信手段の待受け動作をONにし、第2の受信手段の待受け動作をOFFにする。すなわち、移動通信端末の高速な移動に対応できる通信エリアの広い携帯電話網からの電波を受信する第1の受信手段のみで待受けを行うので、移動通信端末の消費電力を少なくするとともに、好適な通信を実現できる。
【0017】
また、本発明の待受け制御プログラムにおいては、上記待受け制御手段は、上記通信網検出手段による上記検出結果に基づいて、上記携帯電話網及び近距離通信網の通信圏外であると判断する場合に、上記第1及び第2の受信手段の待受け動作を所定時間OFFにすることを特徴とすることが好適である。
【0018】
この発明によれば、この待受け制御プログラムが移動通信端末に実現させる通信網検出手段による検出結果に基づいて、携帯電話網及び近距離通信網の双方に接続できないと判断する場合には、待受け制御手段が、第1及び第2の受信手段の双方を所定時間停止させる。このようにして、いずれの通信網からの電波も受信できない場合に、この待受け制御プログラムによって、移動通信端末はその消費電量を少なくすることができる。
【0019】
【発明の実施の形態】
本発明の実施形態にかかる移動通信端末1について添付の図面を参照して説明する。図1は移動通信端末1の機能的な構成を示すブロック図である。移動通信端末1は、携帯電話網と無線LAN(近距離通信網)の双方の無線通信方式に対応しており、物理的には、CPU(中央処理装置)、ボタン等の入力装置、ディスプレイ等の表示装置、メモリなどの記憶装置、携帯電話網及び無線LANのそれぞれに対応するアンテナなどを備えている。
【0020】
そして、移動通信端末1は機能的には図1に示すように、携帯電話網無線受信部(第1の受信手段)2と、無線LAN無線受信部(第2の受信手段)3と、通信網検出部(通信網検出手段手段)4と、フェージングピッチ計測部(フェージングピッチ計測手段)5と、待受け制御部(待受け制御手段)6を備える。以下、これらの各構成要素について詳細に説明する。
【0021】
携帯電話網無線受信部2は、ITU(国際電気通信連合)によって標準化された第3世代移動通信方式のIMT−2000に準拠したW−CDMA方式を採用する携帯電話網からの電波を受信する。すなわち、携帯電話網を構成する基地局からの電波を受信する。そして、後述する待受け制御部6による制御のもと、その待受け動作をONにして携帯電話網からの電波を待受け、或いはその待受け動作をOFFにして待受け状態を解除する。なお、この携帯電話網無線受信部2が対応する通信方式としては、第2世代のPDC(Personal Digital Cellular)方式といった移動体通信方式であってもよい。
【0022】
無線LAN無線受信部3は、無線LAN(Local Area Network)からの電波を受信する。すなわち、無線LAN構成するアクセスポイント等からの電波を受信する。そして、後述する待受け制御部6による制御のもと、その待受け動作をONにして無線LANからの電波を待受け、或いはその待受け動作をOFFにして、待受け状態を解除する。
【0023】
通信網検出部4は、携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれに受信される電波から、それぞれの電波の受信強度を計測する。そして、携帯電話網無線受信部2によって受信される電波の受信強度が一定の強度以上である場合には、移動通信端末1が携帯電話網への通信圏内にあると判断する。また、無線LAN無線受信部3によって受信される電波の受信強度が一定の強度以上である場合には、移動通信端末1が無線LANへの通信圏内にあると判断する。
そして、移動通信端末1が携帯電話網及び無線LANの通信圏内に存在するか否かに関する通信網検出情報を生成する。
【0024】
フェージングピッチ計測部5は、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって受信される電波のフェージングピッチを計測する。なお、この「フェージングピッチ」とは、受信される電波の強度変化の周波数を意味し、一般に移動通信端末の移動速度が大きい場合にフェージングピッチは大きくなり、移動速度が小さくなるとフェージングピッチは小さくなる傾向がある。そして、このフェージングピッチには、例えば、上記の電波の波形の包絡線を求めて、その包絡線の中心周波数を用いることができる。また、上記の電波(電波の直流成分や信号成分を除いたもの)の、ピーク周波数なども用いることができる。
【0025】
待受け制御部6は、携帯電話網無線受信部2及び無線LAN無線受信部3の待受け動作のON/OFFを制御する。すなわち、上述した通信網検出部4によって生成される通信網検出情報やフェージングピッチ計測部5によって計測されるフェージングピッチに基づいて、携帯電話網無線受信部2及び無線LAN無線受信部3をそれぞれ待受け動作をONして待受け状態としたり、或いは待受け動作をOFFにして待受け状態を解除する。なお、この待受け制御方法の詳細なについては後述する。
【0026】
続いて、本実施形態にかかる移動通信端末1の動作について説明し、併せて本実施形態にかかる移動通信端末1の待受け制御方法について説明する。図2〜5は、本実施形態にかかる移動通信端末1の待受け制御方法のフローチャートである。
【0027】
まず、図2に示すように、移動通信端末1に備える通信網検出部4が、携帯電話網無線受信部2によって受信される電波と無線LAN無線受信部3によって受信される電波のそれぞれの受信強度を計測する。そして、携帯電話網無線受信部2によって受信される電波の受信強度が一定の強度以上の場合、携帯電話網の通信圏内であると判断し、無線LAN無線受信部3によって受信される電波の受信強度が一定の強度以上の場合に無線LANの通信圏内であると判断し、これらの判断結果に関する通信網検出情報を生成する(ステップS1)。
【0028】
次に、待受け制御部6は、通信網検出部4によって生成される通信網検出情報から、移動通信端末1の存在位置において、どの通信網から電波を受信できるかを判断し(ステップS2〜S4)、その判断によって以下の異なる処理をそれぞれを行う。まず、移動通信端末1が携帯電話網のみから電波を受信可能であるか否かを判断する(ステップS2)。そして移動通信端末1が携帯電話網のみから電波を受信可能であると判断する場合には、図3に示すフローチャートの処理を行う。このとき、図3に示すように、まず、待受け制御部6は、携帯電話網無線受信部2の待受け動作をONにし、無線LAN無線受信部3の待受け動作をOFFにする。すなわち、携帯電話網無線受信部2のみを待受け状態とする(ステップS101)。
【0029】
次いで、フェージングピッチ計測部5が、このとき待受け動作中の携帯電話網無線受信部2によって受信される電波のフェージングピッチを計測する(ステップS102)。そして、フェージングピッチ計測部5によって計測されるフェージングピッチをf[Hz]とし、フェージングピッチの上限閾値fmax[Hz]、フェージングピッチの下限閾値をfmin[Hz]とすると、fがfminより小さいか、またはfがfmaxより大きいか否かを判断する(ステップS103)。そしてfがfminより小さい場合、またはfがfmaxより大きい場合に、携帯電話網無線受信部2を待受け動作をONにし、無線LAN無線受信部3の待受け動作をOFFにする現在の状態を継続させる。すなわちfがfminより小さい場合は、移動通信端末1が殆ど移動していないと予想されるので、携帯電話網無線受信部2のみによって電波を待受ける現在の状態を継続する。また、fがfmaxより大きい場合は、移動通信端末1が高速に移動していると予想されるので、無線LANより通信エリアの広い携帯電話網からの電波を受信する携帯電話網無線受信部2のみによって電波を待受ける現在の状態を継続する。
【0030】
一方、fがfminより小さいか、またはfがfmaxより大きいか否かを判断して(ステップS103)、この条件を満たさない場合、すなわちfがfmin以上かつfmax以下の場合に、携帯電話網無線受信部2の待受け動作をONにした現在の状態を維持すると共に、無線LAN無線受信部3の待受け動作もONにする(ステップS104)。すなわち、移動通信端末1は移動しているものの、その速度が大きくない場合は、携帯電話網無線受信部2及び無線LAN無線受信部3の両者で電波を待受ける。
【0031】
次に、通信網検出部4が、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部に受信される電波の受信強度から、携帯電話網、無線LANそれぞれから電波を受信可能か否か検出し、携帯電話網、無線LANそれぞれの通信圏内に存在するか否かに関する通信網検出情報を生成する(ステップS105)。この通信網検出情報は、上記のように携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって一定の強度以上の電波が受信されると、その受信部の対応する通信網の通信圏内であるとして生成される。一方、携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれの待受け動作がOFFの場合には、対応する通信網の通信圏外であるとして生成される。
【0032】
そして、待受け制御部6は、通信網検出部4によって生成される通信網検出情報から、移動通信端末1の存在位置において、どの通信網から電波を受信できるかを判断し(ステップS106〜S108)、その判断によって以下の異なる処理をそれぞれ行う。まず、携帯電話網のみから電波を受信できるか否かを判断する(ステップS106)。そして、携帯電話網のみから電波を受信できる場合には、図3のフローチャートに示す処理を繰り返す。また、無線LANのみから電波を受信できると判断するか否かを判断し(ステップS107)、無線LANのみから電波を受信できる場合には、図4のフローチャートに示す処理を行う。また、携帯電話網と無線LAN網の両者から電波を受信できるか否かを判断し(ステップS108)、携帯電話網と無線LAN網の両者から電波を受信できる場合には、図5のフローチャートに示す処理を行う。一方、携帯電話網と無線LAN網の両者から電波を受信できないと判断する場合には、図6のフローチャートに示す処理を行う。
【0033】
図2に戻って、移動通信端末1が無線LANのみから電波を受信可能であるか否かを判断する(ステップS3)。そして、移動通信端末1が無線LANのみから電波を受信可能な場合には、図4に示すフローチャートの処理を行う。このとき、図4に示すように、まず、待受け制御部6は、無線LAN無線受信部3の待受け動作をONにし、携帯電話網無線受信部2の待受け動作をOFFにする。すなわち、無線LAN無線受信部3のみを待受け状態とする(ステップS201)。
【0034】
次いで、フェージングピッチ計測部5が、このとき待受け動作中の無線LAN無線受信
部3によって受信される電波のフェージングピッチを計測する(ステップS202)。そして、フェージングピッチ計測部5によって計測されるフェージングピッチをf[Hz]とし、フェージングピッチの上限閾値fmax[Hz]、フェージングピッチの下限閾値をfmin[Hz]とすると、fがfmaxより大きいか否かを判断する(ステップS203)。そしてfがfmaxより大きい場合は、携帯電話網無線受信部2の待受け動作をONにし、無線LAN無線受信部3の待受け動作をOFFにする(ステップS204)。すなわち、fがfmaxより大きい場合は、移動通信端末1が高速に移動していると予想されるので、無線LANより通信エリアの広い携帯電話網からの電波を受信する携帯電話網無線受信部2のみによって電波を待受ける。
【0035】
また、fがfmin以上かつfmax以下であるか否かを判断し(ステップS205)、この条件を満たす場合に、無線LAN無線受信部3の待受け動作をONにしている現在の状態を維持すると共に、携帯電話網無線受信部2の待受け動作をONにする(ステップS206)。すなわち、移動通信端末1は移動しているものの、その速度が大きくない場合は、携帯電話網無線受信部2及び無線LAN無線受信部3の両者で電波を待受ける。
【0036】
また、fがfmin以上かつfmax以下であるか否かを判断し(ステップS205)、この条件を満たさない場合、すなわち、fがfminより小さい場合は、移動通信端末1は殆ど移動していないと予想されるので、携帯電話網無線受信部2の待受け動作をOFFにし、無線LAN無線受信部3の待受け動作をONにして、無線LANからの電波を待受ける現在の状態を継続する。
【0037】
次に、通信網検出部4が、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部に受信される電波の受信強度から、携帯電話網、無線LANそれぞれから電波を受信可能か否か検出し、携帯電話網、無線LANそれぞれの通信圏内に存在するか否かに関する通信網検出情報を生成する(ステップS207)。この通信網検出情報は、上記のように携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって一定の強度以上の電波が受信されると、その受信部の対応する通信網の通信圏内であるとして生成される。一方、携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれの待受け動作がOFFの場合には、対応する通信網の通信圏外であるとして生成される。
【0038】
そして、待受け制御部6は、通信網検出部4によって生成される通信網検出情報から、移動通信端末1の存在位置において、どの通信網から電波を受信できるかを判断し(ステップS208〜S210)、その判断によって以下の異なる処理をそれぞれ行う。まず、携帯電話網のみから電波を受信できるか否かを判断し(ステップS208)、携帯電話網のみから電波を受信できる場合には、図3のフローチャートに示す処理を行う。また、無線LANのみから電波を受信できるか否かを判断し(ステップS209)、無線LANのみから電波を受信できる場合には、図4のフローチャートに示す処理を繰り返す。また、携帯電話網と無線LAN網の両者から電波を受信できるか判断し(ステップS210)、この条件を満たす場合には、図5のフローチャートに示す処理を行う。一方、この条件を満たさない場合、すなわち、携帯電話網と無線LAN網の両者から電波を受信できない場合には、図6のフローチャートに示す処理を行う。
【0039】
図2に戻って、移動通信端末1が携帯電話網及び無線LANの両者から電波を受信可能であるか否かを判断する(ステップS4)。そして、移動通信端末1が携帯電話網及び無線LANの両者から電波を受信可能である場合には、図5に示すフローチャートの処理を行う。このとき、図5に示すように、まず、待受け制御部6は、無線LAN無線受信部3の待受け動作をONにし、携帯電話網無線受信部2の待受け動作をOFFにする。すなわち、携帯電話網及び無線LANの両者から電波を受信可能であると判断する場合には、より高速な通信速度によって通信が可能な、無線LAN無線受信部3のみを待受け状態とする(ステップS301)。
【0040】
次いで、フェージングピッチ計測部5が、このとき待受け動作中の無線LAN無線受信部3によって受信される電波のフェージングピッチを計測する(ステップS302)。そして、フェージングピッチ計測部5によって計測されるフェージングピッチをf[Hz]とし、フェージングピッチの上限閾値fmax[Hz]、フェージングピッチの下限閾値をfmin[Hz]とすると、fがfmaxより大きいか否かを判断する(ステップS303)。そしてfがfmaxより大きい場合は、携帯電話網無線受信部2の待受け動作をONにし、無線LAN無線受信部3の待受け動作をOFFにする(ステップS304)。すなわち、fがfmaxより大きい場合は、移動通信端末1が高速に速度で移動していると予想されるので、無線LANより通信エリアの広い携帯電話網からの電波を受信する携帯電話網無線受信部2のみによって電波を待受ける。
【0041】
また、fがfmin以上かつfmax以下であるかを判断する(ステップS305)。そして、fがfmin以上かつfmax以下である場合に、無線LAN無線受信部3の待受け動作をONにした現在の状態を維持するとともに、携帯電話網無線受信部2の待受け動作をONにする(ステップS306)。すなわち、移動通信端末1は移動しているものの、その速度が大きくない場合は、携帯電話網無線受信部2及び無線LAN無線受信部3の両者で電波を待受ける。
【0042】
また、fがfmin以上かつfmax以下であるかを判断して(ステップS305)、この条件を満たさない場合、すなわち、fがfminより小さい場合は、移動通信端末1は殆ど移動していないと予想されるので、携帯電話網無線受信部2の待受け動作をOFFにし、無線LAN無線受信部3の待受け動作をONにして、無線LANからの電波を待受ける現在の状態を継続する。
【0043】
次に、通信網検出部4が、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部に受信される電波の受信強度から、携帯電話網、無線LANそれぞれから電波を受信可能か否か検出し、携帯電話網、無線LANそれぞれの通信圏内に存在するか否かに関する通信網検出情報を生成する(ステップS307)。この通信網検出情報は、上記のように携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって一定の強度以上の電波が受信されると、その受信部の対応する通信網の通信圏内であるとして生成される。一方、携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれの待受け動作がOFFの場合には、対応する通信網の通信圏外であるとして生成される。
【0044】
そして、待受け制御部6は、通信網検出部4によって生成される通信網検出情報から、移動通信端末1の存在位置において、どの通信網から電波を受信できるかを判断し(ステップS308〜S310)、その判断によって以下の異なる処理をそれぞれを行う。まず、携帯電話網のみから電波を受信できるか否かを判断する(ステップS308)。そして携帯電話網のみから電波を受信できる場合には、図3のフローチャートに示す処理を行う。また、無線LANのみから電波を受信できるか否かを判断し(ステップS309)、無線LANのみから電波を受信できる場合には、図4のフローチャートに示す処理を行う。また、携帯電話網と無線LAN網の両者から電波を受信できるか否かを判断し(ステップS310)、この条件を満たす場合には、図5のフローチャートに示す処理を繰り返す。一方、この条件を満たさない場合、すなわち、携帯電話網と無線LAN網の両者から電波を受信できない場合には、図6のフローチャートに示す処理を行う。
【0045】
図2に戻って、移動通信端末1が携帯電話網及び無線LANの両者から電波を受信できるか否かを判断し(ステップS4)、この条件を満たさない場合、すなわち、移動通信端末1が携帯電話網及び無線LANの両者から電波を受信できない場合には、図6に示すフローチャートの処理を行う。このとき、図6に示すように、まず、待受け制御部6は、携帯電話網無線受信部2、無線LAN無線受信部3の両者の待受け動作を所定時間OFFにする(ステップS401)。そして、待受け制御部6は、所定時間経過後に、携帯電話網無線受信部2、無線LAN無線受信部3の両者の待受け動作をONにする(ステップS402)。
【0046】
次に、通信網検出部4が、携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれに受信される電波の受信強度から、携帯電話網、無線LANそれぞれから電波を受信可能か否か検出し、携帯電話網、無線LANそれぞれの通信圏内に存在するか否かに関する通信網検出情報を生成する(ステップS403)。
【0047】
そして、待受け制御部6は、通信網検出部4によって生成される通信網検出情報から、移動通信端末1の存在位置において、どの通信網から電波を受信できるかを判断し(ステップS404〜S406)、その判断によって以下の異なる処理をそれぞれ行う。まず、携帯電話網のみから電波を受信できるか否かを判断する(ステップS404)。そして、携帯電話網のみから電波を受信できる場合には、図3のフローチャートに示す処理を行う。また、無線LANのみから電波を受信できるか否かを判断する(ステップS405)。そして、無線LANのみから電波を受信できる場合には、図4のフローチャートに示す処理を行う。また、携帯電話網と無線LAN網の両者から電波を受信できるか否かを判断し(ステップS406)、この条件を満たす場合には、図5のフローチャートに示す処理を行う。一方、この条件を満たさない場合、すなわち、携帯電話網と無線LAN網の両者から電波を受信できないと判断する場合には、図6のフローチャートに示す処理を繰り返す。
【0048】
続いて、実施形態にかかる待受け制御プログラム100について説明する。図7は待受け制御プログラム100のモジュール構成を示すブロック図である。図7に示すように、本実施形態の待受け制御プログラム100は、メインモジュール101、通信網検出モジュール102、フェージングピッチ計測モジュール103、待受け制御モジュール104を備える。このメインモジュール101は、処理を統括するモジュールであり、通信網検出モジュール102、フェージングピッチ計測モジュール103、待受け制御モジュール104はそれぞれ、通信網検出部4、フェージングピッチ計測部5、待受け制御部6の機能を移動通信端末1に実現させる。したがって、待受け制御プログラム100のインストーラを管理するサーバから、この待受け制御プログラム100のインストーラが移動通信端末1にダウンロードされて、待受け制御プログラム100が移動通信端末1にインストールされると、上述した待受け制御を移動通信端末1に実現させる。
【0049】
以下、本実施形態にかかる移動通信端末1の作用及び効果を説明する。ます、通信網検出部4が、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって受信される電波の受信強度に基づいて、携帯電話網及び無線LANそれぞれの通信圏内であるか否かに関する通信網検出情報を生成する。また、フェージングピッチ計測部5が、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、待受け動作中の受信部によって受信される電波のフェージングピッチを計測する。このフェージングピッチと通信網検出情報に基づいて、待受け制御部6が携帯電話網無線受信部2及び無線LAN無線受信部3のそれぞれの待受け動作を制御する。ここで、フェージングピッチは一般に移動通信端末1の移動速度と比例する傾向を示す。したがって、通信網検出情報とフェージングピッチから予想される移動通信端末1の移動速度に基づいた移動通信端末1の移動状況に応じて、携帯電話網及び無線LANのうち、その移動状況に適した無線通信方式を採用する通信網からの電波を待受けできるように、携帯電話網無線受信部2及び無線LAN無線受信部3の待受け動作のON/OFFを制御する。その結果、携帯電話網無線受信部2及び無線LAN無線受信部3のうち、その移動状況に適さない受信部の待受け動作をOFFにすることにより、移動通信端末1の消費電力を少なくできるとともに、その移動状況に適した受信部の待受け動作をONにすることで好適な通信が実現できる。例えば、フェージングピッチが大きい場合は、移動通信端末1の速度が大きいと予想されるので、移動速度が大きい場合に適する通信エリアの広い携帯電話網から電波を受信できる携帯電話網無線受信部2のみの待受け動作をONにして好適な通信を実現するとともに、無線LAN無線受信部3の待受け動作をOFFにすることにより、移動通信端末1の消費電力を低減する。一方、フェージングピッチが小さいため移動通信端末1の移動速度が小さいと予想され、かつ通信網検出情報から無線LANの通信圏内に存在すると判断される場合には、待受け制御部6が無線LAN無線受信部3の待受け動作をONにする。すなわち、通信網圏検出情報から移動通信端末1が無線LANの通信圏内にあると判断され、フェージングピッチから移動通信端末1は殆ど移動しないと判断される場合には、高速な通信速度で通信できる無線LAN無線受信部3の待受け動作をONにして、好適な通信を実現する。また、待受け制御部6は、通信網検出部4によって生成される通信網検出情報に基づいて、携帯電話網と無線LANの両者から電波を受信できないと判断する場合には、携帯電話網無線受信部2及び無線LAN無線受信部3の両者の待受け動作を所定時間OFFにする。これにより、移動通信端末1は、その消費電量を少なくするとともに、所定時間経過後に携帯電話網無線受信部2及び無線LAN無線受信部3で電波を受信できるか否かについて再度確認できる。
【0050】
なお、本発明は上記した本実施形態に限定されることなく種々の変形が可能である。まず、本実施携帯に示した技術は、携帯電話網と無線LANとのように、通信エリアと通信速度の異なる二つの無線通信方式を採用する移動通信端末に適用可能である。したがって、例えば、無線LAN無線受信部3に代えて、Bluetoothなどの近距離無線から電波を受信する受信部を適用することができる。
【0051】
また、上記したように、フェージングピッチ計測部5によって計測されるフェージングピッチに対して適用する上限閾値(fmax)や下限閾値(fmax)は、携帯電話網無線受信部2によって受信される電波から計測するフェージングピッチと、無線LAN無線受信部3によって受信される電波から計測するフェージングピッチとで、異なる値を適用しても良い。
【0052】
また、図4に示すフローチャートの処理、すなわち、移動通信端末1が携帯電話網、無線LANの両者から電波を受信できる場合の処理においては、携帯電話網無線受信部2の待受け動作をOFFにし、無線LAN無線受信部3によって電波の待受けを行っている(ステップS301)が、この設定は、ユーザによる変更を妨げるものではない。例えばユーザが携帯電話網からの電波を受信することを優先させたいい場合には、携帯電話網無線受信部2の待受け動作をONにし、無線LAN無線受信部3の待受け動作をOFFにするように、変更することも可能である。
【0053】
【発明の効果】
本発明によれば、通信網検出手段によって検出される携帯電話網及び近距離無線網の通信圏内であるか否かに関する検出結果と、フェージングピッチ計測手段によって計測されるフェージングピッチとに基づいて、待受け制御手段が第1及び第2の受信手段のそれぞれの待受け動作のON/OFFを制御する。その結果、第1及び第2の受信手段のうち、移動通信端末の移動状況に適した受信手段の待受け動作をONにして好適な通信を実現するとともに、移動通信端末の移動状況に適さない受信手段の待受け動作を停止させて、移動通信端末の消費電力を少なくできる。
【図面の簡単な説明】
【図1】 実施形態にかかる移動通信端末の機能的な構成を示すブロック図である。
【図2】 実施形態にかかる待受け制御方法のフローチャートである。
【図3】 実施形態にかかる待受け制御方法のフローチャートである。
【図4】 実施形態にかかる待受け制御方法のフローチャートである。
【図5】 実施形態にかかる待受け制御方法のフローチャートである。
【図6】 実施形態にかかる待受け制御方法のフローチャートである。
【図7】 実施形態にかかる待受け制御プログラムの構成を示すブロック図である。
【符号の説明】
1…移動通信端末、2…携帯電話網無線受信部、3…無線LAN無線受信部、4…通信網検出部、5…フェージングピッチ計測部、6…待受け制御部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile communication terminal.
[0002]
[Prior art]
In recent years, mobile communication terminals capable of communication using two different communication networks, such as mobile phone networks and wireless LAN networks, have become widespread. Such a mobile communication terminal includes two wireless receiving units in order to receive radio waves from two different communication networks.
[0003]
[Problems to be solved by the invention]
As described above, in a conventional mobile communication terminal having two radio reception units, in order to realize suitable communication even if the movement status changes, the standby operation of each radio reception unit is always ON. It is necessary to keep. As a result, there is a problem that a large amount of power is consumed.
[0004]
The present invention has been made in view of such a problem, and even with two wireless reception units, mobile communication has low power consumption and can realize suitable communication in response to changes in movement conditions. Provide a terminal.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, a mobile communication terminal according to the present invention includes a first receiving unit that receives radio waves from a mobile phone network using a predetermined wireless communication method, a communication area that is narrower than the mobile phone network, and a communication speed that is low. In a mobile communication terminal comprising a second receiving means for receiving radio waves from a short-distance communication network using a fast wireless communication method, the receiving means in the standby operation is received by the receiving means among the first and second receiving means. Communication network detection means for detecting whether or not the mobile phone network and the short-range wireless network are within communication ranges based on the reception strength of the radio wave, and the first and second reception means, Based on the radio wave received by the receiving means during standby operation, the fading pitch measuring means for measuring the fading pitch, the detection result by the communication network detecting means, and the fading pitch. Based on the fading pitch measured by the measuring means, it comprises a standby control means for controlling ON / OFF of each standby operation of the first receiving means and the second receiving means, and the standby control means The standby control means is When the fading pitch is not less than a predetermined lower limit threshold and not more than a predetermined upper limit threshold, the standby operation of the first receiving means and the second receiving means is turned ON, The fading pitch is the above When it is determined that it is smaller than a predetermined lower limit threshold and is within the communication area of the short-range wireless network based on the detection result by the communication network detection means, the standby operation of the second reception means is turned ON. And the standby operation of the first receiving means is turned off. And When it is determined that the fading pitch is smaller than the predetermined lower threshold value and exists only in the communication area of the cellular phone network based on the detection result by the communication network detection means, the standby of the second reception means Turn off the operation, turn on the standby operation of the first receiving means, The fading pitch is the above When the threshold value is larger than the predetermined upper limit threshold value, the standby operation of the first receiving unit is turned on, and the standby operation of the second receiving unit is turned off.
[0006]
In order to solve the above problems, the standby control method of the present invention includes a first receiving means for receiving radio waves from a mobile phone network by a predetermined wireless communication system, and a communication area narrower than that of the mobile phone network. And a second receiving means for receiving radio waves from a short-range wireless network using a high-speed wireless communication system, wherein the communication network detecting means includes the first and second receiving means. A communication network detecting step for detecting whether or not the mobile phone network and the short-range wireless network are within communication ranges based on a reception intensity of a radio wave received by the receiving unit during standby And a fading pitch measuring means for measuring a fading pitch based on a radio wave received by the receiving means during standby operation of the first and second receiving means. The pitch measuring step and the standby control means are configured to determine whether the first receiving means and the second receiving means are based on the detection result by the communication network detecting means and the fading pitch measured by the fading pitch measuring means. Standby control step for controlling ON / OFF of each standby operation, and in the standby control step, the standby control means includes: When the fading pitch is not less than a predetermined lower limit threshold and not more than a predetermined upper limit threshold, the standby operation of the first receiving means and the second receiving means is turned ON, The fading pitch is the above When it is determined that it is smaller than a predetermined lower limit threshold and is within the communication area of the short-range wireless network based on the detection result by the communication network detection means, the standby operation of the second reception means is turned ON. And the standby operation of the first receiving means is turned off. And When it is determined that the fading pitch is smaller than the predetermined lower threshold value and exists only in the communication area of the cellular phone network based on the detection result by the communication network detection means, the standby of the second reception means Turn off the operation, turn on the standby operation of the first receiving means, The fading pitch is the above When the threshold value is larger than the predetermined upper limit threshold value, the standby operation of the first receiving unit is turned on, and the standby operation of the second receiving unit is turned off.
[0007]
According to these present inventions, this mobile communication terminal uses a predetermined wireless communication system. Mobile phone network First receiving means for receiving radio waves from, and Mobile phone network A wireless communication system with a narrower communication area and faster communication speed Near field communication network Second receiving means for receiving radio waves from Further, the mobile communication terminal includes a communication network detection unit and a fading pitch measurement unit, and the communication network detection unit is based on the reception strength of the radio wave received by each of the first and second reception units. Mobile phone network as well as Near field communication network It is detected whether it exists in each communication area. Further, the fading pitch measuring means measures the fading pitch of the radio wave received by the receiving means in the standby operation among the first and second receiving means. Then, based on the detection result by the communication network detection unit and the fading pitch measured by the fading pitch measurement unit, the standby control unit controls ON / OFF of the standby operation of each of the first and second reception units. This “fading pitch” means the frequency of intensity change of received radio waves. Generally, when the moving speed of a mobile communication terminal is high, the fading pitch increases, and when the moving speed decreases, the fading pitch tends to decrease. is there. That is, according to the present invention, mobile communication based on information related to a communicable communication network at the location where the mobile communication terminal is present detected by the communication network detecting means and the moving speed of the mobile communication terminal expected from the fading pitch. Depending on how your device is moving, Mobile phone network as well as Near field communication network Among them, the standby control means turns on / off each standby operation of the first and second receiving means so that radio waves from a communication network adopting a wireless communication system having a communication area suitable for the movement situation can be standby. Controls OFF. As a result, among the first and second receiving means, the receiving operation suitable for the moving situation is turned on to realize suitable communication, and the receiving operation not suitable for the moving situation is turned off. Thus, the power consumption of the mobile communication terminal can be reduced.
[0008]
Also, According to these inventions, the fading pitch is smaller than a predetermined lower threshold, and Near field communication network When it is determined that there is a mobile communication terminal within the communication range of the first, the standby control means turns on the standby operation of the second receiving means. That is, the mobile communication terminal Near field communication network If the speed of movement is expected to be low, the communication area is narrow. Near field communication network Since there is little possibility of getting out of the communication range, suitable communication can be realized by turning on the standby operation of the second receiving means capable of realizing communication at a high communication speed.
[0009]
Furthermore, According to these inventions, when the fading pitch is larger than the predetermined upper limit threshold, that is, when the moving speed of the mobile communication terminal is high, the standby operation of the first receiving unit is turned on and the standby operation of the second receiving unit is performed. Set to OFF. In other words, a wide communication area that can accommodate high-speed movement of mobile communication terminals Mobile phone network Since the standby is performed only by the first receiving means for receiving the radio wave from the mobile phone, it is possible to reduce the power consumption of the mobile communication terminal and realize suitable communication according to the movement status.
[0010]
Further, in the mobile communication terminal of the present invention, the standby control means is based on the detection result by the communication network detection means. Mobile phone network as well as Near field communication network It is preferable that the standby operation of the first and second receiving means is turned off for a predetermined time when it is determined that the communication area is out of the communication range.
[0011]
Further, in the standby control method of the present invention, in the standby control step, the standby control means is based on the detection result by the communication network detection means. Mobile phone network as well as Near field communication network It is preferable to turn off the standby operation of the first and second receiving means for a predetermined time when it is determined that they are out of the communication range.
[0012]
According to these inventions, based on the detection result by the communication network detection means, Mobile phone network as well as Near field communication network If it is determined that the connection cannot be established, the standby control means stops both the first and second receiving means for a predetermined time. In this way, when it is impossible to receive radio waves from any communication network, the mobile communication terminal can reduce its power consumption.
[0013]
The standby control program of the present invention includes a first receiving means for receiving radio waves from a mobile phone network using a predetermined wireless communication system, and a wireless communication system having a communication area narrower than that of the mobile phone network and having a high communication speed. A mobile communication terminal comprising a second receiving means for receiving radio waves from a short-range communication network, and receiving strength of radio waves received by the receiving means during standby operation of the first and second receiving means. Communication network detecting means for detecting whether or not the mobile phone network and the short-range communication network are within communication ranges, and the first and second receiving means, wherein the standby operation is in progress Based on the radio wave received by the receiving means, the fading pitch measuring means for measuring the fading pitch, the detection result by the communication network detecting means, and the fading pitch measuring means. Based on the fading pitch is measured, to function as a standby control means for controlling ON / OFF of each of the standby operation of the first receiving means and said second receiving means, the standby control means, When the fading pitch is not less than a predetermined lower limit threshold and not more than a predetermined upper limit threshold, the standby operation of the first receiving means and the second receiving means is turned ON, The fading pitch is the above When it is determined that it is smaller than a predetermined lower limit threshold and is within the communication area of the short-range wireless network based on the detection result by the communication network detection means, the standby operation of the second reception means is turned ON. And the standby operation of the first receiving means is turned off. And When it is determined that the fading pitch is smaller than the predetermined lower threshold value and exists only in the communication area of the cellular phone network based on the detection result by the communication network detection means, the standby of the second reception means Turn off the operation, turn on the standby operation of the first receiving means, The fading pitch is the above When larger than the predetermined upper limit threshold, the standby operation of the first receiving means is turned on and the standby operation of the second receiving means is turned off.
[0014]
According to the present invention, when this standby control program is installed in the mobile communication terminal, the standby control program causes the mobile communication terminal to function as the above-described communication network detecting means, fading pitch measuring means, and standby control means. That is, based on information relating to a communicable communication network at the location where the mobile communication terminal is present detected by the communication network detection means, and the moving speed of the mobile communication terminal expected from the fading pitch measured by the fading pitch measurement means Depending on the movement status of the mobile communication terminal, Mobile phone network as well as Near field communication network Among them, the standby control means turns on / off each standby operation of the first and second receiving means so that radio waves from a communication network adopting a wireless communication system having a communication area suitable for the movement situation can be standby. Controls OFF. As a result, among the first and second receiving means, the standby operation of the receiving means suitable for the movement status is turned ON to realize suitable communication, and the standby operation of the receiving means not suitable for the movement status is performed. By turning it off, the power consumption of the mobile communication terminal can be reduced.
[0015]
Also, According to this invention, the standby control means that the standby control program realizes in the mobile communication terminal is such that the fading pitch is smaller than a predetermined lower limit threshold, and Near field communication network When it is determined that there is a mobile communication terminal within the communication range, the standby operation of the second receiving means is turned on. That is, the mobile communication terminal Near field communication network If the speed of movement is expected to be low, the communication area is narrow. Near field communication network Since there is little possibility of getting out of the communication range, suitable communication can be realized by turning on the standby operation of the second receiving means capable of realizing communication at a high communication speed.
[0016]
More According to the present invention, the standby control means to be realized by the mobile communication terminal by the standby control program performs the first reception when the fading pitch is larger than the predetermined upper limit threshold, that is, when the moving speed of the mobile communication terminal is high. The standby operation of the means is turned on, and the standby operation of the second reception means is turned off. In other words, a wide communication area that can accommodate high-speed movement of mobile communication terminals Mobile phone network Since standby is performed only by the first receiving means for receiving radio waves from the mobile phone, it is possible to reduce power consumption of the mobile communication terminal and realize suitable communication.
[0017]
Further, in the standby control program of the present invention, the standby control means is based on the detection result by the communication network detection means. Mobile phone network as well as Near field communication network It is preferable that the standby operation of the first and second receiving means is turned off for a predetermined time when it is determined that the communication area is out of the communication range.
[0018]
According to this invention, based on the detection result by the communication network detecting means that the standby control program realizes in the mobile communication terminal, Mobile phone network as well as Near field communication network When it is determined that the connection cannot be established, the standby control unit stops both the first and second receiving units for a predetermined time. In this way, when the radio wave from any communication network cannot be received, the mobile communication terminal can reduce its power consumption by this standby control program.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
A mobile communication terminal 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a functional configuration of the mobile communication terminal 1. The mobile communication terminal 1 includes a mobile phone network and a wireless LAN ( Near field communication network ) Physically, CPU (central processing unit), input devices such as buttons, display devices such as displays, storage devices such as memories, mobile phone networks and wireless LANs Each is equipped with a corresponding antenna.
[0020]
As shown in FIG. 1, the mobile communication terminal 1 functionally communicates with a mobile phone network wireless receiver (first receiver) 2, a wireless LAN wireless receiver (second receiver) 3, A network detection unit (communication network detection unit) 4, a fading pitch measurement unit (fading pitch measurement unit) 5, and a standby control unit (standby control unit) 6 are provided. Hereinafter, each of these components will be described in detail.
[0021]
The mobile phone network wireless receiving unit 2 receives radio waves from a mobile phone network adopting a W-CDMA system compliant with IMT-2000 of the third generation mobile communication system standardized by ITU (International Telecommunication Union). That is, it receives radio waves from base stations that make up the mobile phone network. Then, under the control of a standby control unit 6 to be described later, the standby operation is turned on to wait for radio waves from the mobile phone network, or the standby operation is turned off to cancel the standby state. Note that the mobile communication system such as the second generation PDC (Personal Digital Cellular) system may be used as the communication system supported by the mobile phone network radio receiver 2.
[0022]
The wireless LAN wireless receiving unit 3 receives radio waves from a wireless LAN (Local Area Network). That is, it receives radio waves from an access point or the like constituting the wireless LAN. Then, under the control of a standby control unit 6 to be described later, the standby operation is turned on to wait for radio waves from the wireless LAN, or the standby operation is turned off to cancel the standby state.
[0023]
The communication network detection unit 4 measures the reception intensity of each radio wave from the radio waves received by the mobile phone network radio reception unit 2 and the wireless LAN radio reception unit 3. When the reception intensity of the radio wave received by the mobile phone network wireless receiving unit 2 is equal to or higher than a certain intensity, it is determined that the mobile communication terminal 1 is within the communication range to the mobile phone network. Further, when the reception intensity of the radio wave received by the wireless LAN wireless receiving unit 3 is equal to or higher than a certain intensity, it is determined that the mobile communication terminal 1 is within the communication area to the wireless LAN.
Then, communication network detection information relating to whether or not the mobile communication terminal 1 exists within the communication range of the mobile phone network and the wireless LAN is generated.
[0024]
The fading pitch measuring unit 5 measures the fading pitch of the radio wave received by the receiving unit in the standby operation among the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3. The “fading pitch” means a frequency of intensity change of received radio waves. Generally, when the moving speed of the mobile communication terminal is high, the fading pitch becomes large, and when the moving speed becomes low, the fading pitch becomes small. Tend. For this fading pitch, for example, the envelope of the waveform of the radio wave can be obtained and the center frequency of the envelope can be used. Moreover, the peak frequency of the above-mentioned radio wave (excluding the DC component and signal component of the radio wave) can also be used.
[0025]
The standby control unit 6 controls ON / OFF of standby operations of the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. That is, based on the communication network detection information generated by the communication network detection unit 4 described above and the fading pitch measured by the fading pitch measurement unit 5, the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3 are respectively set on standby. The operation is turned on to enter a standby state, or the standby operation is turned off to cancel the standby state. The details of this standby control method will be described later.
[0026]
Subsequently, an operation of the mobile communication terminal 1 according to the present embodiment will be described, and a standby control method for the mobile communication terminal 1 according to the present embodiment will be described. 2 to 5 are flowcharts of the standby control method for the mobile communication terminal 1 according to the present embodiment.
[0027]
First, as shown in FIG. 2, the communication network detection unit 4 included in the mobile communication terminal 1 receives the radio wave received by the mobile phone network radio reception unit 2 and the radio wave received by the wireless LAN radio reception unit 3. Measure strength. If the reception intensity of the radio wave received by the mobile phone network wireless reception unit 2 is equal to or higher than a certain strength, it is determined that the mobile phone network is within the communication range and the radio LAN radio reception unit 3 receives the radio wave. When the strength is equal to or higher than a certain strength, it is determined that the wireless LAN is within the communication range, and communication network detection information regarding these determination results is generated (step S1).
[0028]
Next, the standby control unit 6 determines from which communication network radio waves can be received from the communication network detection information generated by the communication network detection unit 4 at the location of the mobile communication terminal 1 (steps S2 to S4). ) Depending on the judgment, the following different processes are performed. First, it is determined whether or not the mobile communication terminal 1 can receive radio waves only from the mobile phone network (step S2). When the mobile communication terminal 1 determines that radio waves can be received only from the mobile phone network, the process of the flowchart shown in FIG. 3 is performed. At this time, as shown in FIG. 3, first, the standby control unit 6 turns on the standby operation of the mobile phone network wireless reception unit 2 and turns off the standby operation of the wireless LAN wireless reception unit 3. That is, only the mobile phone network radio receiving unit 2 is set in a standby state (step S101).
[0029]
Next, the fading pitch measurement unit 5 measures the fading pitch of the radio wave received by the mobile phone network radio reception unit 2 that is in standby operation at this time (step S102). If the fading pitch measured by the fading pitch measuring unit 5 is f [Hz], the fading pitch upper limit threshold fmax [Hz], and the fading pitch lower limit threshold is fmin [Hz], f is smaller than fmin, Alternatively, it is determined whether f is larger than fmax (step S103). When f is smaller than fmin or when f is larger than fmax, the mobile phone network radio reception unit 2 is turned on, and the current state in which the wireless LAN radio reception unit 3 is turned off is continued. . That is, when f is smaller than fmin, it is expected that the mobile communication terminal 1 has hardly moved, so that the current state of waiting for radio waves only by the mobile phone network radio receiver 2 is continued. If f is larger than fmax, the mobile communication terminal 1 is expected to move at a high speed. Therefore, the mobile phone network radio receiver 2 receives radio waves from a mobile phone network having a wider communication area than the wireless LAN. Continue the current state of waiting for radio waves only.
[0030]
On the other hand, it is determined whether f is smaller than fmin or f is larger than fmax (step S103). If this condition is not satisfied, that is, if f is greater than or equal to fmin and less than or equal to fmax, the mobile phone network radio is transmitted. While maintaining the current state in which the standby operation of the receiver 2 is turned on, the standby operation of the wireless LAN wireless receiver 3 is also turned on (step S104). That is, when the mobile communication terminal 1 is moving but its speed is not high, both the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 wait for radio waves.
[0031]
Next, the communication network detection unit 4 determines whether each of the mobile phone network and the wireless LAN is based on the reception intensity of the radio wave received by the reception unit in the standby operation of the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. Whether or not radio waves can be received from the mobile phone network is detected, and communication network detection information relating to whether or not the mobile phone network and the wireless LAN are within communication ranges is generated (step S105). The communication network detection information is obtained when a radio wave having a certain intensity or higher is received by the receiving unit in the standby operation of the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3 as described above. Is generated as being within the communication range of the corresponding communication network. On the other hand, when the standby operation of each of the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 is OFF, it is generated as being out of the communication range of the corresponding communication network.
[0032]
Then, the standby control unit 6 determines from which communication network radio waves can be received at the location of the mobile communication terminal 1 from the communication network detection information generated by the communication network detection unit 4 (steps S106 to S108). Depending on the judgment, the following different processes are performed. First, it is determined whether or not radio waves can be received only from the mobile phone network (step S106). When radio waves can be received only from the mobile phone network, the process shown in the flowchart of FIG. 3 is repeated. Further, it is determined whether or not it is possible to receive radio waves only from the wireless LAN (step S107), and when radio waves can be received only from the wireless LAN, the processing shown in the flowchart of FIG. 4 is performed. Further, it is determined whether or not radio waves can be received from both the mobile phone network and the wireless LAN network (step S108), and when radio waves can be received from both the mobile phone network and the wireless LAN network, the flowchart of FIG. Perform the process shown. On the other hand, when it is determined that radio waves cannot be received from both the cellular phone network and the wireless LAN network, the processing shown in the flowchart of FIG. 6 is performed.
[0033]
Returning to FIG. 2, it is determined whether or not the mobile communication terminal 1 can receive radio waves only from the wireless LAN (step S3). Then, when the mobile communication terminal 1 can receive radio waves from only the wireless LAN, the process of the flowchart shown in FIG. 4 is performed. At this time, as shown in FIG. 4, first, the standby control unit 6 turns on the standby operation of the wireless LAN wireless reception unit 3 and turns off the standby operation of the mobile phone network wireless reception unit 2. That is, only the wireless LAN wireless receiving unit 3 is set in a standby state (step S201).
[0034]
Next, the fading pitch measurement unit 5 receives the wireless LAN wireless reception during standby operation at this time.
The fading pitch of the radio wave received by the unit 3 is measured (step S202). If the fading pitch measured by the fading pitch measuring unit 5 is f [Hz], the fading pitch upper limit threshold fmax [Hz], and the fading pitch lower limit threshold is fmin [Hz], whether f is larger than fmax or not. Is determined (step S203). If f is larger than fmax, the standby operation of the mobile phone network wireless receiver 2 is turned on, and the standby operation of the wireless LAN wireless receiver 3 is turned off (step S204). That is, when f is larger than fmax, it is expected that the mobile communication terminal 1 is moving at a high speed. Therefore, the mobile phone network wireless receiving unit 2 that receives radio waves from a mobile phone network having a wider communication area than the wireless LAN. Only waiting for radio waves.
[0035]
Further, it is determined whether f is greater than or equal to fmin and less than or equal to fmax (step S205). If this condition is satisfied, the current state where the standby operation of the wireless LAN wireless reception unit 3 is turned on is maintained. Then, the standby operation of the mobile phone network wireless receiver 2 is turned on (step S206). That is, when the mobile communication terminal 1 is moving but its speed is not high, both the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 wait for radio waves.
[0036]
Further, it is determined whether or not f is not less than fmin and not more than fmax (step S205). If this condition is not satisfied, that is, if f is smaller than fmin, the mobile communication terminal 1 is hardly moved. As expected, the standby operation of the mobile phone network wireless receiver 2 is turned off, the standby operation of the wireless LAN wireless receiver 3 is turned on, and the current state of waiting for radio waves from the wireless LAN is continued.
[0037]
Next, the communication network detection unit 4 determines whether each of the mobile phone network and the wireless LAN is based on the reception intensity of the radio wave received by the reception unit in the standby operation of the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. Whether or not radio waves can be received from the communication network is detected, and communication network detection information relating to whether or not the mobile phone network and the wireless LAN are within communication ranges is generated (step S207). The communication network detection information is obtained when a radio wave having a certain intensity or higher is received by the receiving unit in the standby operation of the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3 as described above. Is generated as being within the communication range of the corresponding communication network. On the other hand, when the standby operation of each of the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 is OFF, it is generated as being out of the communication range of the corresponding communication network.
[0038]
Then, the standby control unit 6 determines from which communication network radio waves can be received at the location of the mobile communication terminal 1 from the communication network detection information generated by the communication network detection unit 4 (steps S208 to S210). Depending on the judgment, the following different processes are performed. First, it is determined whether or not radio waves can be received only from the mobile phone network (step S208). If radio waves can be received only from the mobile phone network, the processing shown in the flowchart of FIG. 3 is performed. Further, it is determined whether or not radio waves can be received only from the wireless LAN (step S209). If radio waves can be received only from the wireless LAN, the processing shown in the flowchart of FIG. 4 is repeated. Further, it is determined whether radio waves can be received from both the cellular phone network and the wireless LAN network (step S210). If this condition is satisfied, the processing shown in the flowchart of FIG. 5 is performed. On the other hand, when this condition is not satisfied, that is, when radio waves cannot be received from both the mobile phone network and the wireless LAN network, the processing shown in the flowchart of FIG. 6 is performed.
[0039]
Returning to FIG. 2, it is determined whether or not the mobile communication terminal 1 can receive radio waves from both the mobile phone network and the wireless LAN (step S4). When the mobile communication terminal 1 can receive radio waves from both the mobile phone network and the wireless LAN, the process of the flowchart shown in FIG. 5 is performed. At this time, as shown in FIG. 5, the standby control unit 6 first turns on the standby operation of the wireless LAN wireless reception unit 3 and turns off the standby operation of the mobile phone network wireless reception unit 2. That is, when it is determined that radio waves can be received from both the mobile phone network and the wireless LAN, only the wireless LAN wireless reception unit 3 capable of communication at a higher communication speed is set in a standby state (step S301). ).
[0040]
Next, the fading pitch measurement unit 5 measures the fading pitch of the radio wave received by the wireless LAN wireless reception unit 3 that is in standby operation at this time (step S302). If the fading pitch measured by the fading pitch measuring unit 5 is f [Hz], the fading pitch upper limit threshold fmax [Hz], and the fading pitch lower limit threshold is fmin [Hz], whether f is larger than fmax or not. Is determined (step S303). If f is larger than fmax, the standby operation of the mobile phone network wireless receiver 2 is turned on, and the standby operation of the wireless LAN wireless receiver 3 is turned off (step S304). That is, when f is larger than fmax, it is expected that the mobile communication terminal 1 is moving at high speed, so that the mobile phone network wireless reception for receiving radio waves from the mobile phone network having a wider communication area than the wireless LAN. Only the unit 2 waits for radio waves.
[0041]
Further, it is determined whether f is not less than fmin and not more than fmax (step S305). When f is not less than fmin and not more than fmax, the current state in which the standby operation of the wireless LAN wireless reception unit 3 is turned on is maintained and the standby operation of the mobile phone network wireless reception unit 2 is turned on ( Step S306). That is, when the mobile communication terminal 1 is moving but its speed is not high, both the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 wait for radio waves.
[0042]
Further, it is determined whether f is greater than or equal to fmin and less than or equal to fmax (step S305). If this condition is not satisfied, that is, if f is smaller than fmin, the mobile communication terminal 1 is expected to hardly move. Therefore, the standby operation of the mobile phone network wireless reception unit 2 is turned off, the standby operation of the wireless LAN wireless reception unit 3 is turned on, and the current state of waiting for radio waves from the wireless LAN is continued.
[0043]
Next, the communication network detection unit 4 determines whether each of the mobile phone network and the wireless LAN is based on the reception intensity of the radio wave received by the reception unit in the standby operation of the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. Whether or not radio waves can be received from the communication network is detected, and communication network detection information relating to whether or not the mobile phone network and the wireless LAN are within communication ranges is generated (step S307). The communication network detection information is obtained when a radio wave having a certain intensity or higher is received by the receiving unit in the standby operation of the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3 as described above. Is generated as being within the communication range of the corresponding communication network. On the other hand, when the standby operation of each of the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 is OFF, it is generated as being out of the communication range of the corresponding communication network.
[0044]
Then, the standby control unit 6 determines from which communication network radio waves can be received at the location of the mobile communication terminal 1 from the communication network detection information generated by the communication network detection unit 4 (steps S308 to S310). Depending on the judgment, the following different processes are performed. First, it is determined whether or not radio waves can be received only from the mobile phone network (step S308). If radio waves can be received only from the mobile phone network, the processing shown in the flowchart of FIG. 3 is performed. Also, it is determined whether or not radio waves can be received only from the wireless LAN (step S309). If radio waves can be received only from the wireless LAN, the processing shown in the flowchart of FIG. 4 is performed. Further, it is determined whether or not radio waves can be received from both the cellular phone network and the wireless LAN network (step S310). If this condition is satisfied, the processing shown in the flowchart of FIG. 5 is repeated. On the other hand, when this condition is not satisfied, that is, when radio waves cannot be received from both the mobile phone network and the wireless LAN network, the processing shown in the flowchart of FIG. 6 is performed.
[0045]
Returning to FIG. 2, it is determined whether or not the mobile communication terminal 1 can receive radio waves from both the mobile phone network and the wireless LAN (step S4). If this condition is not satisfied, that is, the mobile communication terminal 1 is mobile. When radio waves cannot be received from both the telephone network and the wireless LAN, the processing of the flowchart shown in FIG. 6 is performed. At this time, as shown in FIG. 6, the standby control unit 6 first turns off the standby operations of both the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 for a predetermined time (step S401). Then, the standby control unit 6 turns ON the standby operation of both the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3 after a predetermined time has elapsed (step S402).
[0046]
Next, whether or not the communication network detection unit 4 can receive radio waves from each of the mobile phone network and the wireless LAN based on the reception intensity of the radio waves received by each of the mobile phone network radio reception unit 2 and the wireless LAN radio reception unit 3. Then, communication network detection information relating to whether or not the mobile phone network and the wireless LAN are within communication ranges is generated (step S403).
[0047]
Then, the standby control unit 6 determines from which communication network radio waves can be received at the location of the mobile communication terminal 1 from the communication network detection information generated by the communication network detection unit 4 (steps S404 to S406). Depending on the judgment, the following different processes are performed. First, it is determined whether or not radio waves can be received only from the mobile phone network (step S404). When radio waves can be received only from the mobile phone network, the processing shown in the flowchart of FIG. 3 is performed. Further, it is determined whether or not radio waves can be received only from the wireless LAN (step S405). When radio waves can be received only from the wireless LAN, the processing shown in the flowchart of FIG. 4 is performed. Further, it is determined whether or not radio waves can be received from both the cellular phone network and the wireless LAN network (step S406). If this condition is satisfied, the processing shown in the flowchart of FIG. 5 is performed. On the other hand, when this condition is not satisfied, that is, when it is determined that radio waves cannot be received from both the cellular phone network and the wireless LAN network, the processing shown in the flowchart of FIG. 6 is repeated.
[0048]
Next, the standby control program 100 according to the embodiment will be described. FIG. 7 is a block diagram showing the module configuration of the standby control program 100. As shown in FIG. 7, the standby control program 100 of this embodiment includes a main module 101, a communication network detection module 102, a fading pitch measurement module 103, and a standby control module 104. The main module 101 is a module that controls processing. The communication network detection module 102, the fading pitch measurement module 103, and the standby control module 104 are respectively connected to the communication network detection unit 4, the fading pitch measurement unit 5, and the standby control unit 6. The function is realized in the mobile communication terminal 1. Therefore, when the installer of the standby control program 100 is downloaded to the mobile communication terminal 1 from the server that manages the installer of the standby control program 100 and the standby control program 100 is installed in the mobile communication terminal 1, the standby control described above is performed. Is realized in the mobile communication terminal 1.
[0049]
Hereinafter, the operation and effect of the mobile communication terminal 1 according to the present embodiment will be described. First, the communication network detection unit 4 determines whether the cellular phone network and the wireless LAN are based on the reception strength of the radio wave received by the receiving unit in the standby operation of the cellular phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. Communication network detection information regarding whether or not each communication area is within is generated. Further, the fading pitch measuring unit 5 measures the fading pitch of the radio wave received by the receiving unit in the standby operation among the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3. Based on this fading pitch and communication network detection information, the standby control unit 6 controls the standby operations of the mobile phone network wireless reception unit 2 and the wireless LAN wireless reception unit 3. Here, the fading pitch generally tends to be proportional to the moving speed of the mobile communication terminal 1. Therefore, the wireless network suitable for the movement situation of the mobile phone network and the wireless LAN according to the movement situation of the mobile communication terminal 1 based on the movement speed of the mobile communication terminal 1 expected from the communication network detection information and the fading pitch. ON / OFF of the standby operation of the mobile phone network wireless receiver 2 and the wireless LAN wireless receiver 3 is controlled so that radio waves from a communication network adopting the communication system can be standby. As a result, it is possible to reduce power consumption of the mobile communication terminal 1 by turning off the standby operation of the receiving unit that is not suitable for the movement state of the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3, A suitable communication can be realized by turning on the standby operation of the receiving unit suitable for the movement state. For example, when the fading pitch is large, it is expected that the speed of the mobile communication terminal 1 is high. Therefore, only the mobile phone network wireless receiver 2 that can receive radio waves from a mobile phone network with a wide communication area suitable for a high travel speed. The standby operation of the wireless communication terminal 1 is turned on to realize suitable communication, and the standby operation of the wireless LAN wireless reception unit 3 is turned off, thereby reducing the power consumption of the mobile communication terminal 1. On the other hand, when the moving speed of the mobile communication terminal 1 is expected to be low because the fading pitch is small and it is determined from the communication network detection information that the mobile communication terminal 1 is within the wireless LAN communication area, the standby control unit 6 receives the wireless LAN wireless reception. Turn on the standby operation of part 3. That is, when it is determined from the communication network area detection information that the mobile communication terminal 1 is in the wireless LAN communication area, and it is determined from the fading pitch that the mobile communication terminal 1 hardly moves, communication can be performed at a high communication speed. The standby operation of the wireless LAN wireless receiving unit 3 is turned on to realize suitable communication. When the standby control unit 6 determines that radio waves cannot be received from both the mobile phone network and the wireless LAN based on the communication network detection information generated by the communication network detection unit 4, the standby control unit 6 The standby operation of both the unit 2 and the wireless LAN wireless receiving unit 3 is turned off for a predetermined time. As a result, the mobile communication terminal 1 can reduce its power consumption and confirm again whether or not the mobile phone network wireless receiving unit 2 and the wireless LAN wireless receiving unit 3 can receive radio waves after a predetermined time has elapsed.
[0050]
The present invention is not limited to the above-described embodiment, and various modifications can be made. First, the technology shown in the present embodiment can be applied to a mobile communication terminal that employs two wireless communication systems having different communication areas and communication speeds, such as a mobile phone network and a wireless LAN. Therefore, for example, instead of the wireless LAN wireless receiving unit 3, a receiving unit that receives radio waves from short-range wireless such as Bluetooth can be applied.
[0051]
Further, as described above, the upper threshold (fmax) and the lower threshold (fmax) applied to the fading pitch measured by the fading pitch measuring unit 5 are measured from radio waves received by the mobile phone network radio receiving unit 2. Different values may be applied to the fading pitch to be measured and the fading pitch measured from the radio wave received by the wireless LAN wireless receiving unit 3.
[0052]
Also, in the process of the flowchart shown in FIG. 4, that is, the process in which the mobile communication terminal 1 can receive radio waves from both the mobile phone network and the wireless LAN, the standby operation of the mobile phone network wireless receiving unit 2 is turned off, The wireless LAN wireless reception unit 3 is waiting for radio waves (step S301), but this setting does not prevent a change by the user. For example, when the user prefers to receive radio waves from the mobile phone network, the standby operation of the mobile phone network wireless reception unit 2 is turned on and the standby operation of the wireless LAN wireless reception unit 3 is turned off. It is also possible to change it.
[0053]
【The invention's effect】
According to the present invention, it is detected by the communication network detection means. Mobile phone network as well as Short-range wireless network The standby control means turns on / off the standby operations of the first and second receiving means based on the detection result regarding whether or not the communication area is within the communication range and the fading pitch measured by the fading pitch measuring means. Control. As a result, among the first and second receiving means, the receiving operation suitable for the movement status of the mobile communication terminal is turned on to realize suitable communication, and reception not suitable for the movement status of the mobile communication terminal By stopping the standby operation of the means, the power consumption of the mobile communication terminal can be reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a functional configuration of a mobile communication terminal according to an embodiment.
FIG. 2 is a flowchart of a standby control method according to the embodiment.
FIG. 3 is a flowchart of a standby control method according to the embodiment.
FIG. 4 is a flowchart of a standby control method according to the embodiment.
FIG. 5 is a flowchart of a standby control method according to the embodiment.
FIG. 6 is a flowchart of a standby control method according to the embodiment.
FIG. 7 is a block diagram showing a configuration of a standby control program according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Mobile communication terminal, 2 ... Mobile telephone network radio | wireless receiving part, 3 ... Wireless LAN radio | wireless receiving part, 4 ... Communication network detection part, 5 ... Fading pitch measurement part, 6 ... Standby control part

Claims (6)

所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、前記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離無線網からの電波を受信する第2の受信手段とを備える移動通信端末において、
前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段に受信される電波の受信強度に基づいて、前記携帯電話網及び近距離無線網のそれぞれの通信圏内に存在するか否かを検出する通信網検出手段と、
前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測手段と、
前記通信網検出手段による検出結果と、前記フェージングピッチ計測手段によって計測される前記フェージングピッチに基づいて、前記第1の受信手段と前記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御手段と
を備え、
前記待受け制御手段は、前記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、前記第1の受信手段及び前記第2の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記近距離無線網の通信圏内に存在すると判断する場合に、前記第2の受信手段の待受け動作をONにすると共に、前記第1の受信手段の待ち受け動作をOFFにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記携帯電話網の通信圏内のみに存在すると判断する場合に、前記第2の受信手段の待受け動作をOFFにすると共に、前記第1の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の上限閾値より大きい場合に、前記第1の受信手段の待受け動作をONにすると共に、前記第2の受信手段の待受け動作をOFFにする、
ことを特徴とする移動通信端末。
First receiving means for receiving radio waves from a mobile phone network using a predetermined radio communication system, and receiving radio waves from a short-range radio network using a radio communication system with a communication area narrower and faster than the mobile phone network. In a mobile communication terminal comprising a second receiving means,
Whether or not the mobile phone network and the short-range wireless network are within communication ranges based on the reception strength of the radio wave received by the receiving unit in the standby operation of the first and second receiving units Communication network detecting means for detecting
Of the first and second receiving means, fading pitch measuring means for measuring a fading pitch based on radio waves received by the receiving means in standby operation;
Based on the detection result by the communication network detecting means and the fading pitch measured by the fading pitch measuring means, the ON / OFF of the standby operation of each of the first receiving means and the second receiving means is controlled. Standby control means to
The standby control unit, when the fading pitch is less than a predetermined lower limit threshold value or more and the predetermined upper limit threshold, the standby operation of the first receiving means and said second receiving means to ON, the fading pitch is predetermined smaller than the lower threshold, and, if it is determined that present in the communication range of the short-range wireless network based on the detection result by the communication network detection means and turns oN the standby operation of the second receiving means The standby operation of the first receiving means is turned OFF, the fading pitch is smaller than the predetermined lower limit threshold, and only within the communication area of the cellular phone network based on the detection result by the communication network detecting means When it is determined that the second receiving unit exists, the standby operation of the second receiving unit is turned off and the standby operation of the first receiving unit is turned off. To, when the fading pitch is greater than the predetermined upper limit threshold value, while turns ON the standby operation of the first receiving means, turns OFF the standby operation of the second receiving means,
A mobile communication terminal characterized by that.
前記待受け制御手段は、前記通信網検出手段による前記検出結果に基づいて、前記携帯電話網及び近距離無線網の通信圏外であると判断する場合に、前記第1及び第2の受信手段の待受け動作を所定時間OFFにすることを特徴とする請求項に記載の移動通信端末。When the standby control unit determines that the mobile phone network and the short-range wireless network are out of the communication area based on the detection result of the communication network detection unit, the standby control unit waits for the first and second reception units. The mobile communication terminal according to claim 1 , wherein the operation is turned off for a predetermined time. 所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、前記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離無線網からの電波を受信する第2の受信手段とを備える移動通信端末の待受け制御方法であって、
通信網検出手段が、前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段に受信される電波の受信強度に基づいて、前記携帯電話網及び近距離無線網のそれぞれの通信圏内に存在するか否かを検出する通信網検出ステップと、
フェージングピッチ計測手段が、前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測ステップと、
待受け制御手段が、前記通信網検出手段による検出結果と、前記フェージングピッチ計測手段によって計測される前記フェージングピッチに基づいて、前記第1の受信手段と前記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御ステップと
を備え、
前記待受け制御ステップにおいて、前記待受け制御手段は、前記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、前記第1の受信手段及び前記第2の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記近距離無線網の通信圏内に存在すると判断する場合に、前記第2の受信手段の待受け動作をONにすると共に、前記第1の受信手段の待ち受け動作をOFFにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記携帯電話網の通信圏内のみに存在すると判断する場合に、前記第2の受信手段の待受け動作をOFFにすると共に、前記第1の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の上限閾値より大きい場合に、前記第1の受信手段の待受け動作をONにすると共に、前記第2の受信手段の待受け動作をOFFにする、
ことを特徴とする待受け制御方法。
First receiving means for receiving radio waves from a mobile phone network using a predetermined radio communication system, and receiving radio waves from a short-range radio network using a radio communication system with a communication area narrower and faster than the mobile phone network. A standby control method for a mobile communication terminal comprising a second receiving means,
The communication network detection means communicates with each of the mobile phone network and the short-range wireless network based on the reception intensity of the radio wave received by the receiving means in the standby operation of the first and second receiving means. A communication network detecting step for detecting whether or not it exists in the vicinity;
A fading pitch measuring unit that measures a fading pitch based on a radio wave received by the receiving unit in a standby operation among the first and second receiving units;
The standby control unit is configured to perform a standby operation of each of the first reception unit and the second reception unit based on the detection result by the communication network detection unit and the fading pitch measured by the fading pitch measurement unit. A standby control step for controlling ON / OFF,
In the standby control step, the standby control means turns on standby operations of the first receiving means and the second receiving means when the fading pitch is not less than a predetermined lower limit threshold and not more than a predetermined upper limit threshold, wherein the fading pitch is smaller than the predetermined lower threshold, and, if it is determined that present in the communication range of the short-range wireless network based on the detection result by the communication network detector, waiting for the second receiving means The mobile phone is turned on, the standby operation of the first receiving means is turned off, the fading pitch is smaller than the predetermined lower limit threshold, and the mobile phone is based on the detection result by the communication network detecting means. When it is determined that it exists only in the communication range of the network, the standby operation of the second receiving means is turned off, and the The standby operation of the first receiving means to ON, when the fading pitch is greater than the predetermined upper limit threshold value, while turns ON the standby operation of the first receiving means, a standby operation of said second receiving means Turn it off,
A standby control method characterized by the above.
前記待受け制御ステップにおいて、前記待受け制御手段は、前記通信網検出手段による前記検出結果に基づいて、前記携帯電話網及び近距離無線網の通信圏外であると判断する場合に、前記第1及び第2の受信手段の待受け動作を所定時間OFFにすることを特徴とする請求項に記載の待受け制御方法。In the standby control step, when the standby control means determines that the mobile phone network and the short-range wireless network are out of the communication area based on the detection result by the communication network detection means, the first and first 4. The standby control method according to claim 3 , wherein the standby operation of the second receiving means is turned off for a predetermined time. 所定の無線通信方式による携帯電話網からの電波を受信する第1の受信手段と、前記携帯電話網より通信エリアが狭く、通信速度の速い無線通信方式による近距離無線網からの電波を受信する第2の受信手段とを備える移動通信端末を、
前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段に受信される電波の受信強度に基づいて、前記携帯電話網及び近距離無線網のそれぞれの通信圏内に存在するか否かを検出する通信網検出手段と、
前記第1及び第2の受信手段のうち、待受け動作中の前記受信手段によって受信される電波に基づいて、フェージングピッチを計測するフェージングピッチ計測手段と、
前記通信網検出手段による検出結果と、前記フェージングピッチ計測手段によって計測される前記フェージングピッチに基づいて、前記第1の受信手段と前記第2の受信手段のそれぞれの待受け動作のON/OFFを制御する待受け制御手段と
として機能させ、
前記待受け制御手段は、前記フェージングピッチが所定の下限閾値以上且つ所定上限閾値以下の場合に、前記第1の受信手段及び前記第2の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記近距離無線網の通信圏内に存在すると判断する場合に、前記第2の受信手段の待受け動作をONにすると共に、前記第1の受信手段の待ち受け動作をOFFにし、前記フェージングピッチが前記所定の下限閾値より小さく、かつ、前記通信網検出手段による前記検出結果に基づいて前記携帯電話網の通信圏内のみに存在すると判断する場合に、前記第2の受信手段の待受け動作をOFFにすると共に、前記第1の受信手段の待ち受け動作をONにし、前記フェージングピッチが前記所定の上限閾値より大きい場合に、前記第1の受信手段の待受け動作をONにすると共に、前記第2の受信手段の待受け動作をOFFにする、
待受け制御プログラム。
First receiving means for receiving radio waves from a mobile phone network using a predetermined radio communication system, and receiving radio waves from a short-range radio network using a radio communication system with a communication area narrower and faster than the mobile phone network. A mobile communication terminal comprising a second receiving means,
Whether or not the mobile phone network and the short-range wireless network are within communication ranges based on the reception strength of the radio wave received by the receiving unit in the standby operation of the first and second receiving units Communication network detecting means for detecting
Of the first and second receiving means, fading pitch measuring means for measuring a fading pitch based on radio waves received by the receiving means in standby operation;
Based on the detection result by the communication network detecting means and the fading pitch measured by the fading pitch measuring means, the ON / OFF of the standby operation of each of the first receiving means and the second receiving means is controlled. Function as standby control means to
The standby control unit, when the fading pitch is less than a predetermined lower limit threshold value or more and the predetermined upper limit threshold, the standby operation of the first receiving means and said second receiving means to ON, the fading pitch is predetermined smaller than the lower threshold, and, if it is determined that present in the communication range of the short-range wireless network based on the detection result by the communication network detection means and turns oN the standby operation of the second receiving means The standby operation of the first receiving means is turned OFF, the fading pitch is smaller than the predetermined lower limit threshold, and only within the communication area of the cellular phone network based on the detection result by the communication network detecting means When it is determined that the second receiving unit exists, the standby operation of the second receiving unit is turned off and the standby operation of the first receiving unit is turned off. To, when the fading pitch is greater than the predetermined upper limit threshold value, while turns ON the standby operation of the first receiving means, turns OFF the standby operation of the second receiving means,
Standby control program.
前記待受け制御手段は、前記通信網検出手段による前記検出結果に基づいて、前記携帯電話網及び近距離無線網の通信圏外であると判断する場合に、前記第1及び第2の受信手段の待受け動作を所定時間OFFにすることを特徴とする請求項記載の待受け制御プログラム。When the standby control unit determines that the mobile phone network and the short-range wireless network are out of the communication area based on the detection result of the communication network detection unit, the standby control unit waits for the first and second reception units. 6. The standby control program according to claim 5 , wherein the operation is turned off for a predetermined time.
JP2002242440A 2002-08-22 2002-08-22 Mobile communication terminal, standby control method, standby control program Expired - Fee Related JP3669978B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002242440A JP3669978B2 (en) 2002-08-22 2002-08-22 Mobile communication terminal, standby control method, standby control program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002242440A JP3669978B2 (en) 2002-08-22 2002-08-22 Mobile communication terminal, standby control method, standby control program

Publications (2)

Publication Number Publication Date
JP2004088154A JP2004088154A (en) 2004-03-18
JP3669978B2 true JP3669978B2 (en) 2005-07-13

Family

ID=32051522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002242440A Expired - Fee Related JP3669978B2 (en) 2002-08-22 2002-08-22 Mobile communication terminal, standby control method, standby control program

Country Status (1)

Country Link
JP (1) JP3669978B2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004320473A (en) * 2003-04-16 2004-11-11 Sharp Corp Mobile terminal
JP4127400B2 (en) 2004-06-18 2008-07-30 富士通株式会社 Call management server program, call management method, and call management server
JP4543801B2 (en) * 2004-07-16 2010-09-15 日本電気株式会社 Communication method and communication system for portable terminal
US20070082697A1 (en) 2005-10-07 2007-04-12 Research In Motion Limited System and method of handset configuration between cellular and private wireless network modes
EP1772994A1 (en) * 2005-10-07 2007-04-11 Research In Motion Limited System and method for configuring a handset between a cellular and a private wireless network mode
WO2008096418A1 (en) * 2007-02-06 2008-08-14 Panasonic Corporation Mobile communication device and communication system selection method
JP2009232109A (en) 2008-03-21 2009-10-08 Panasonic Corp Radio terminal device and retransmission method
JP5272833B2 (en) 2008-03-28 2013-08-28 富士通株式会社 Wireless communication apparatus, wireless communication method, and wireless communication program
JP5484743B2 (en) * 2009-01-28 2014-05-07 京セラ株式会社 Wireless communication terminal
JP5161843B2 (en) * 2009-06-17 2013-03-13 株式会社東芝 Mobile radio terminal device
JP2012114860A (en) * 2010-11-26 2012-06-14 Kyocera Corp Portable communication terminal
JP5729760B2 (en) * 2011-03-30 2015-06-03 Necカシオモバイルコミュニケーションズ株式会社 Mobile terminal device, communication control method for mobile terminal device, and program
JP2014192837A (en) * 2013-03-28 2014-10-06 Nec Corp Communication terminal device, device and method for travel speed determination, and program

Also Published As

Publication number Publication date
JP2004088154A (en) 2004-03-18

Similar Documents

Publication Publication Date Title
JP3669978B2 (en) Mobile communication terminal, standby control method, standby control program
US8238966B2 (en) Controlling multi-mode devices
US7924787B2 (en) Method and apparatus for controlling scanning period in a mobile communication terminal
US8948083B2 (en) Mobile communication terminal and computer readable recording medium
US20020102974A1 (en) Method for mating a mobile terminal with a cordless phone system
US20090061770A1 (en) Bluetooth device with on-demand page scan
JP5394740B2 (en) Initial setting of the transmission power of the carrier of the secondary / reverse link of the wireless communication network
JPH1098427A (en) Portable mobile radio terminal equipment
US20130310117A1 (en) Mobile terminal, power transfer system and computer-readable storage medium
CN109600791B (en) Signal strength reporting method and device, storage medium and mobile terminal
JP2006295643A (en) Mobile communication system and its terminal, and its method
JP2006140912A (en) Portable radio communication terminal and method for searching base station of same
JPH05252094A (en) Diversity receiver
JP2004088521A (en) Compound portable telephone system, radio type automatic switching method by battery residual quantity used for same and its program
KR20010018527A (en) Equipment and mthod for power saving of mobile wireless communication terminal
JP2005039795A (en) Mobile radio terminal device
US20070121562A1 (en) Communication control system and method thereof
JP4531312B2 (en) Mobile terminal and base station
JP3698950B2 (en) Mobile communication device and operation method thereof
JP2003169013A (en) Mobile telephone set and program
JP4879098B2 (en) Wireless communication terminal device, wireless communication system, control method and program for wireless communication system
JP3462009B2 (en) Mobile wireless terminal and method of operation
JP2003134029A (en) Radio communication terminal device
JP2015100060A (en) Communication apparatus, communication method, program and recording medium
JP2003124874A (en) Portable terminal and power saving method thereof

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20020822

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040820

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040831

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20041001

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20041029

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050104

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050307

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20050404

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20050412

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090422

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090422

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100422

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110422

Year of fee payment: 6

LAPS Cancellation because of no payment of annual fees