JP2006295643A - Mobile communication system and its terminal, and its method - Google Patents

Mobile communication system and its terminal, and its method Download PDF

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JP2006295643A
JP2006295643A JP2005114978A JP2005114978A JP2006295643A JP 2006295643 A JP2006295643 A JP 2006295643A JP 2005114978 A JP2005114978 A JP 2005114978A JP 2005114978 A JP2005114978 A JP 2005114978A JP 2006295643 A JP2006295643 A JP 2006295643A
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base station
wireless lan
mobile communication
mobile phone
mobile
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Hideaki Asada
英昭 浅田
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NEC Corp
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

<P>PROBLEM TO BE SOLVED: To resolve the problem that a portable phone with a radio LAN communication function is large in power consumption. <P>SOLUTION: When having received, from a mobile phone base station, notification information for indicating absence of a radio LAN base station within a communication possible range of own station, a controller 11 supplies no electric power to a radio LAN communication unit 16. On the contrary, when having received information for notifying presence thereof within the range from the same, the controller 11 supplies electric power to the radio LAN communication unit 16 to allow the radio LAN communication unit 16 to make the transition to a standby mode for receiving an electric wave transmitted by the radio LAN base station 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、無線ＬＡＮ基地局が送信した電波の待ち受け機能の動作を制御する移動体通信システム、移動体通信端末、および移動体通信方法に関する。   The present invention relates to a mobile communication system, a mobile communication terminal, and a mobile communication method for controlling the operation of a standby function for radio waves transmitted from a wireless LAN base station.

企業内の内線を用いた通話や、定額制の安価な通話を実現するため、携帯電話機に無線ＬＡＮ（Ｌｏｃａｌ Ａｒｅａ Ｎｅｔｗｏｒｋ）への接続機能を搭載させ、携帯電話機を公衆携帯電話通信網と無線ＬＡＮとに接続させる方式がある。   In order to realize a call using an internal extension in a company or an inexpensive call with a flat rate, the mobile phone is equipped with a connection function to a wireless LAN (Local Area Network), and the mobile phone is connected to a public mobile phone communication network and a wireless LAN. There is a method to connect to.

そのような携帯電話機は、携帯電話通信網の基地局、および無線ＬＡＮの基地局から電波を受信するため、異なる受信手段が搭載されている。そして、それぞれの受信手段が、それぞれの基地局から電波を受信するために、同時に待ち受け動作を行うため、消費電力が大きいという問題があった。   Such a mobile phone is equipped with different receiving means for receiving radio waves from a base station of a mobile phone communication network and a base station of a wireless LAN. And each receiving means performs standby operation at the same time in order to receive radio waves from each base station, and there is a problem that power consumption is large.

そこで、携帯電話基地局および無線ＬＡＮ基地局から受信した電波のフェージングピッチを計測し、フェージングピッチが大きくなると移動速度が速いとして、通信可能エリアが狭い無線ＬＡＮ基地局からの電波の待ち受け機能を停止させ、消費電力を削減する移動通信端末が提案されている（例えば、特許文献１参照。）。   Therefore, the fading pitch of the radio waves received from the mobile phone base station and the wireless LAN base station is measured, and if the fading pitch increases, the moving speed is fast and the standby function for radio waves from the wireless LAN base station with a narrow communication area is stopped. A mobile communication terminal that reduces power consumption has been proposed (see, for example, Patent Document 1).

また、携帯電話基地局との接続機能を有し、所定の時間間隔、または広帯域通信を行うときだけ、無線ＬＡＮ基地局への接続を試みるために無線ＬＡＮ信号受信部に電力を供給する移動通信端末装置が提案されている（例えば、特許文献２参照。）。   Also, mobile communication that has a connection function with a mobile phone base station and supplies power to the wireless LAN signal receiving unit in order to attempt connection to the wireless LAN base station only at a predetermined time interval or when performing broadband communication. A terminal device has been proposed (see, for example, Patent Document 2).

特開２００４−８８１５４号公報 （段落００２５〜００５３、図１）JP 2004-88154 A (paragraphs 0025 to 0053, FIG. 1) 特開２００４−３４９８６３号公報 （段落００２１〜００５１、図１）JP 2004-349863 A (paragraphs 0021 to 0051, FIG. 1)

しかし、特許文献１に記載されている移動通信端末は、移動していない場合には携帯電話基地局および無線ＬＡＮ基地局からの電波を受信する待ち受け機能を動作させるため、移動していない場合の消費電力を削減させることはできない。   However, since the mobile communication terminal described in Patent Document 1 operates a standby function for receiving radio waves from a mobile phone base station and a wireless LAN base station when not moving, Power consumption cannot be reduced.

また、特許文献２に記載されている移動通信端末装置は、所定の時間間隔で無線ＬＡＮ信号受信部に電力を供給するため、所定の時間間隔が長いと無線ＬＡＮ基地局が近くに存在することを検知することが遅くなり、所定の時間間隔が短いと消費電力の削減量が少なくなるという問題がある。   In addition, since the mobile communication terminal device described in Patent Document 2 supplies power to the wireless LAN signal receiving unit at a predetermined time interval, the wireless LAN base station exists nearby if the predetermined time interval is long. However, if the predetermined time interval is short, there is a problem that the amount of reduction in power consumption is reduced.

そこで、本発明は、無線ＬＡＮ基地局が送信した電波の待ち受け機能の動作を制御して、消費電力を削減する移動体通信システム、移動体通信端末、および移動体通信方法を提供することを目的とする。   Accordingly, an object of the present invention is to provide a mobile communication system, a mobile communication terminal, and a mobile communication method that control the operation of a standby function for radio waves transmitted by a wireless LAN base station to reduce power consumption. And

本発明による移動体通信システムは、移動体通信網に接続され、移動体通信端末と無線で通信し、通信可能範囲に無線ＬＡＮの基地局が存在するか否かを示す基地局存在情報を移動体通信端末に送信する移動体通信基地局と、移動体通信基地局から受信した基地局存在情報に応じて無線ＬＡＮ通信機能を活かす移動体通信端末とを備えた移動体通信システムであって、移動体通信端末は、移動体通信基地局と通信を行う移動体通信手段と、無線ＬＡＮの基地局と通信を行う無線ＬＡＮ通信手段と、移動体通信手段が無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段に電力を供給する制御手段とを備えたことを特徴とする。   A mobile communication system according to the present invention is connected to a mobile communication network, wirelessly communicates with a mobile communication terminal, and moves base station presence information indicating whether or not a wireless LAN base station exists in a communicable range. A mobile communication system comprising: a mobile communication base station that transmits to a mobile communication terminal; and a mobile communication terminal that utilizes a wireless LAN communication function according to base station presence information received from the mobile communication base station, The mobile communication terminal has a mobile communication means for communicating with a mobile communication base station, a wireless LAN communication means for communicating with a wireless LAN base station, and a base station for which the mobile communication means is a wireless LAN. Control means for supplying power to the wireless LAN communication means when receiving the base station presence information indicating.

制御手段は、移動体通信手段が無線ＬＡＮの基地局が存在しないことを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段へ電力を供給しなくてもよい。   The control means may not supply power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that no wireless LAN base station exists.

本発明による移動体通信端末は、移動体通信基地局と通信を行う移動体通信手段と、無線ＬＡＮの基地局と通信を行う無線ＬＡＮ通信手段と、移動体通信手段が、移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段に電力を供給する制御手段とを備えたことを特徴とする。   A mobile communication terminal according to the present invention includes a mobile communication means for communicating with a mobile communication base station, a wireless LAN communication means for communicating with a base station of a wireless LAN, and the mobile communication means comprising a mobile communication base station. And a control means for supplying power to the wireless LAN communication means when receiving base station presence information indicating that a wireless LAN base station exists.

制御手段は、移動体通信手段が無線ＬＡＮの基地局が存在しないことを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段へ電力を供給しなくてもよい。   The control means may not supply power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that no wireless LAN base station exists.

制御手段は、移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、移動体通信手段と無線ＬＡＮ通信手段との双方を待ち受け状態にさせてもよい。   When receiving the base station presence information indicating that a wireless LAN base station exists from the mobile communication base station, the control means may place both the mobile communication means and the wireless LAN communication means in a standby state.

本発明による移動体通信方法は、移動体通信基地局と通信を行い、移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、無線ＬＡＮの基地局と通信を行う回路に電力を供給することを特徴とする。   The mobile communication method according to the present invention communicates with a mobile communication base station, and receives base station presence information indicating that a wireless LAN base station exists from the mobile communication base station. Power is supplied to a circuit that performs communication.

本発明によれば、移動体通信基地局から受信した情報に応じて、無線ＬＡＮの基地局と通信を行う回路に電力を供給するため、移動体通信端末の電力消費量を削減することができる。   According to the present invention, power is supplied to a circuit that communicates with a wireless LAN base station in accordance with information received from a mobile communication base station, so that power consumption of the mobile communication terminal can be reduced. .

無線ＬＡＮの基地局が存在しないことを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段へ電力を供給しないように構成した場合には、移動体通信端末が、無線ＬＡＮの基地局が存在しない領域に移動等すると、無線ＬＡＮ通信手段へ電力を供給しないため、移動体通信端末の電力消費量を削減することができる。   When receiving the base station presence information indicating that there is no wireless LAN base station, the mobile communication terminal has no wireless LAN base station when it is configured not to supply power to the wireless LAN communication means. When moving to an area or the like, since power is not supplied to the wireless LAN communication means, the power consumption of the mobile communication terminal can be reduced.

無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、移動体通信手段と無線ＬＡＮ通信手段との双方を待ち受け状態にさせるように構成した場合には、無線ＬＡＮの基地局が存在することを示す基地局存在情報を送信する移動体通信基地局の通信範囲内にいるときに、移動体通信手段と無線ＬＡＮ通信手段との双方を待ち受け状態にさせるため、常に双方を待ち受け状態にさせる場合に比べ、移動体通信端末の電力消費量を削減することができる。   When receiving the base station presence information indicating that a wireless LAN base station is present, if the mobile communication means and the wireless LAN communication means are both set in a standby state, the wireless LAN base station When both the mobile communication means and the wireless LAN communication means are in the standby state when they are within the communication range of the mobile communication base station that transmits the base station presence information indicating the existence, both of them are always in the standby state. Compared with the case where it makes it to, it can reduce the power consumption of a mobile communication terminal.

本発明の実施の形態について、図面を参照して説明する。図１は、本発明の実施の形態の一構成例を示すブロック図である。   Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of an embodiment of the present invention.

本発明の実施の形態は、携帯電話基地局（移動体通信基地局）２３と、無線ＬＡＮ基地局（無線ＬＡＮの基地局）２５と、携帯電話基地局２３および無線ＬＡＮ基地局２５と情報を送受信する携帯電話機（移動体通信端末）１０とを含む。   In the embodiment of the present invention, mobile phone base station (mobile communication base station) 23, wireless LAN base station (wireless LAN base station) 25, mobile phone base station 23 and wireless LAN base station 25 Mobile phone (mobile communication terminal) 10 for transmitting and receiving.

携帯電話機１０は、携帯電話通信用アンテナ１５を介して携帯電話基地局２３と通信を行う携帯電話通信部（移動体通信手段）１４、無線ＬＡＮ用アンテナ１７を介して無線ＬＡＮ基地局２５と通信を行う無線ＬＡＮ通信部（無線ＬＡＮ通信手段）１６、情報を記憶する記憶部１２、および各部を制御する制御部（制御手段）１１を含む。   The mobile phone 10 communicates with a mobile phone communication unit (mobile communication means) 14 that communicates with a mobile phone base station 23 via a mobile phone communication antenna 15, and communicates with a wireless LAN base station 25 via a wireless LAN antenna 17. A wireless LAN communication unit (wireless LAN communication unit) 16 for performing the above, a storage unit 12 for storing information, and a control unit (control unit) 11 for controlling each unit.

携帯電話通信部１４は、携帯電話基地局から受信した信号を処理するＩＣ（Ｉｎｔｅｇｒａｔｅｄ Ｃｉｒｃｕｉｔ）等の電子回路によって実現される。また、無線ＬＡＮ通信部１６は、無線ＬＡＮ基地局２５から受信した信号を処理するＩＣ等の電子回路によって実現される。記憶部１２は、ＲＯＭ（Ｒｅａｄ Ｏｎｌｙ Ｍｅｍｏｒｙ）や、ＲＡＭ（Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）によって実現される。制御部１１は、プログラム制御によって処理を実行するＣＰＵによって実現される。   The mobile phone communication unit 14 is realized by an electronic circuit such as an IC (Integrated Circuit) that processes a signal received from a mobile phone base station. The wireless LAN communication unit 16 is realized by an electronic circuit such as an IC that processes a signal received from the wireless LAN base station 25. The storage unit 12 is realized by a ROM (Read Only Memory) or a RAM (Random Access Memory). The control unit 11 is realized by a CPU that executes processing by program control.

図２は携帯電話基地局および無線ＬＡＮ基地局の通信可能範囲を示す説明図である。図２に示す例では、携帯電話基地局２１は、第１の携帯通信可能範囲２０の範囲内に存在する携帯電話機１０および携帯電話機２６と通信を行うことができる。また、携帯電話基地局２３は、第２の携帯通信可能範囲２２の範囲内に存在する携帯電話機１０、携帯電話機２８、および携帯電話機２９と通信を行うことができる。無線ＬＡＮ基地局２５は、無線ＬＡＮ通信可能範囲２４の範囲内に存在する携帯電話機２９と通信を行うことができる。   FIG. 2 is an explanatory diagram showing the communicable range of the mobile phone base station and the wireless LAN base station. In the example shown in FIG. 2, the mobile phone base station 21 can communicate with the mobile phone 10 and the mobile phone 26 that exist within the first mobile communicable range 20. In addition, the mobile phone base station 23 can communicate with the mobile phone 10, the mobile phone 28, and the mobile phone 29 that exist within the second mobile communicable range 22. The wireless LAN base station 25 can communicate with a mobile phone 29 existing within the wireless LAN communicable range 24.

各携帯電話基地局は、移動体通信網としての携帯電話通信網を管理するサーバ（図示せず）の制御に従って、通信可能範囲の範囲内に無線ＬＡＮ基地局が存在するか否かを示す報知情報を送信する。具体的には、図２に示す例によれば、携帯電話基地局２１は、無線ＬＡＮ基地局が存在しないことを示す報知情報を、携帯電話機１０および携帯電話機２６に送信する。また、携帯電話基地局２３は、無線ＬＡＮ基地局が存在することを示す報知情報を携帯電話機１０、携帯電話機２８、および携帯電話機２９に送信する。なお、携帯電話機２６、携帯電話機２８、および携帯電話機２９の構成は、携帯電話機１０の構成と同じである。   Each mobile phone base station reports whether or not a wireless LAN base station exists within the communicable range according to control of a server (not shown) that manages the mobile phone communication network as a mobile communication network. Send information. Specifically, according to the example shown in FIG. 2, the mobile phone base station 21 transmits notification information indicating that there is no wireless LAN base station to the mobile phone 10 and the mobile phone 26. In addition, the mobile phone base station 23 transmits notification information indicating that a wireless LAN base station exists to the mobile phone 10, the mobile phone 28, and the mobile phone 29. The configurations of the mobile phone 26, the mobile phone 28, and the mobile phone 29 are the same as the configuration of the mobile phone 10.

次に、本発明の実施の形態の動作について、図面を参照して説明する。図３は、本発明の実施の形態の動作を説明するフローチャートである。   Next, the operation of the embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention.

携帯電話機１０および携帯電話機２６は、携帯電話基地局２１による第１の携帯通信可能範囲２０の範囲内、または携帯電話基地局２３による第２の携帯通信可能範囲２２の範囲内に入ると（ステップＳ１０１）、携帯電話基地局２１から報知情報を受信する（ステップＳ１０２）。   When the mobile phone 10 and the mobile phone 26 enter the range of the first portable communication range 20 by the mobile phone base station 21 or the range of the second portable communication range 22 by the mobile phone base station 23 (step) S101), broadcast information is received from the mobile phone base station 21 (step S102).

ここで、携帯電話基地局２１による第１の携帯通信可能範囲２０の範囲内には、無線ＬＡＮ基地局が存在しないので、携帯電話基地局２１は、無線ＬＡＮ基地局が存在しないことを示す報知情報を携帯電話機１０および携帯電話機２６に送信する。そして、携帯電話機１０および携帯電話機２６の携帯電話通信部１４は、携帯電話通信用アンテナ１５を介して、携帯電話基地局２１から、無線ＬＡＮ基地局が存在しないことを示す報知情報を受信する。   Here, since there is no wireless LAN base station within the range of the first portable communication range 20 by the mobile phone base station 21, the mobile phone base station 21 notifies that there is no wireless LAN base station. Information is transmitted to the mobile phone 10 and the mobile phone 26. Then, the mobile phone communication unit 14 of the mobile phone 10 and the mobile phone 26 receives notification information indicating that there is no wireless LAN base station from the mobile phone base station 21 via the mobile phone communication antenna 15.

以下、携帯電話機２６を例に説明する。携帯電話機２６の制御部１１は、携帯電話通信部１４が受信した報知情報が無線ＬＡＮ基地局が存在することを示しているか否かを判断する（ステップＳ１０３）。携帯電話通信部１４が受信した報知情報は、無線ＬＡＮ基地局が存在しないことを示しているので、制御部１１は、携帯電話通信部１４に、携帯電話基地局２１に対する待ち受け動作を継続させ（ステップＳ１０４）、無線ＬＡＮ通信部１６に電力を供給しない。なお、制御部１１は、無線ＬＡＮ通信部１６に既に電力を供給している場合は、無線ＬＡＮ通信部１６への電力の供給を中止する。   Hereinafter, the mobile phone 26 will be described as an example. The control unit 11 of the mobile phone 26 determines whether the notification information received by the mobile phone communication unit 14 indicates that a wireless LAN base station exists (step S103). Since the notification information received by the mobile phone communication unit 14 indicates that no wireless LAN base station exists, the control unit 11 causes the mobile phone communication unit 14 to continue the standby operation for the mobile phone base station 21 ( Step S104), power is not supplied to the wireless LAN communication unit 16. Note that the control unit 11 stops supplying power to the wireless LAN communication unit 16 when power is already supplied to the wireless LAN communication unit 16.

携帯電話機２６が第２の携帯通信可能範囲２２の範囲内に移動すると（ステップＳ１０５）、携帯電話機２６の携帯電話通信部１４は、携帯電話通信用アンテナ１５を介して携帯電話基地局２３から報知情報を受信する（ステップＳ１０２）。   When the mobile phone 26 moves within the second mobile communicable range 22 (step S105), the mobile phone communication unit 14 of the mobile phone 26 notifies the mobile phone base station 23 via the mobile phone communication antenna 15. Information is received (step S102).

ここで、携帯電話基地局２３による第２の携帯通信可能範囲２２の範囲内には、無線ＬＡＮ基地局が存在するので、携帯電話基地局２３は、無線ＬＡＮ基地局が存在することを示す報知情報を携帯電話機２６に送信する。そして、携帯電話機２６の携帯電話通信部１４は、携帯電話通信用アンテナ１５を介して、携帯電話基地局２１から、無線ＬＡＮ基地局が存在することを示す報知情報を受信する。   Here, since the wireless LAN base station exists within the range of the second portable communication range 22 by the mobile phone base station 23, the mobile phone base station 23 notifies that the wireless LAN base station exists. Information is transmitted to the mobile phone 26. Then, the mobile phone communication unit 14 of the mobile phone 26 receives notification information indicating that a wireless LAN base station exists from the mobile phone base station 21 via the mobile phone communication antenna 15.

携帯電話機２６の制御部１１は、携帯電話通信部１４が受信した報知情報が無線ＬＡＮ基地局が存在することを示しているか否かを判断する（ステップＳ１０３）。携帯電話通信部１４が受信した報知情報は、無線ＬＡＮ基地局が存在することを示しているので、制御部１１は、携帯電話基地局２３に対する待ち受け動作を継続させながら、無線ＬＡＮ通信部１６に電力の供給を開始する（ステップＳ１０６）。   The control unit 11 of the mobile phone 26 determines whether the notification information received by the mobile phone communication unit 14 indicates that a wireless LAN base station exists (step S103). Since the notification information received by the mobile phone communication unit 14 indicates that a wireless LAN base station exists, the control unit 11 causes the wireless LAN communication unit 16 to continue the standby operation for the mobile phone base station 23. Supply of electric power is started (step S106).

無線ＬＡＮ通信部１６は、電力が供給されると、無線ＬＡＮ基地局に対する待ち受け動作を開始する。すなわち、携帯電話機２６は、携帯電話基地局が送信した電波と、無線ＬＡＮ基地局が送信した電波との両方を受信する状態となる（ステップＳ１０７）   When power is supplied, the wireless LAN communication unit 16 starts a standby operation for the wireless LAN base station. That is, the mobile phone 26 is in a state of receiving both the radio wave transmitted by the mobile phone base station and the radio wave transmitted by the wireless LAN base station (step S107).

そして、携帯電話機２６が、無線ＬＡＮ基地局２５による無線ＬＡＮ通信可能範囲２４の範囲内に移動すると、無線ＬＡＮ通信部１６は、無線ＬＡＮ用アンテナ１７を介して無線ＬＡＮ基地局２５と通信を行う。   When the mobile phone 26 moves within the wireless LAN communicable range 24 by the wireless LAN base station 25, the wireless LAN communication unit 16 communicates with the wireless LAN base station 25 via the wireless LAN antenna 17. .

以上に述べたように、この実施の形態によれば、携帯電話基地局から無線ＬＡＮ基地局が存在することを示す報知情報を受信したときに無線ＬＡＮ通信部１６に電力を供給するため、無線ＬＡＮ基地局が存在しない地域等で、携帯電話機２６の電力消費量を削減することができる。なお、ここでは、携帯電話機２６を例にしたが、携帯電話機１０および携帯電話機２８も同様の動作を行う。   As described above, according to this embodiment, the wireless LAN communication unit 16 is supplied with power when receiving notification information indicating that a wireless LAN base station exists from the mobile phone base station. The power consumption of the mobile phone 26 can be reduced in an area where there is no LAN base station. Here, the mobile phone 26 is taken as an example, but the mobile phone 10 and the mobile phone 28 also perform the same operation.

そのため、例えば、勤務先の建物内に無線ＬＡＮ基地局が設置され、自宅周辺には無線ＬＡＮ基地局が設置されていない場合、勤務中のみ無線ＬＡＮ通信部１６に電力が供給され、自宅にいるときには無線ＬＡＮ通信部１６に電力が供給されないため、携帯電話機１０の電力消費量を削減することができる。   Therefore, for example, when a wireless LAN base station is installed in a building at work and a wireless LAN base station is not installed in the vicinity of the home, power is supplied to the wireless LAN communication unit 16 only during work, and the user is at home. Sometimes, power is not supplied to the wireless LAN communication unit 16, so that the power consumption of the mobile phone 10 can be reduced.

なお、以上に述べた実施の形態では、移動体通信端末として携帯電話機を例に説明したが、本発明はこれに限定されるものではなく、移動体通信端末は、例えば、ＰＨＳ（Ｐｅｒｓｏｎａｌ Ｈａｎｄｙ ｐｈｏｎｅ Ｓｙｓｔｅｍ）端末や、ＰＤＡ（Ｐｅｒｓｏｎｌ Ｄｉｇｉｔａｌ Ａｓｓｉｓｔａｎｃｅ）端末等によって実現されてもよい。   In the embodiment described above, a mobile phone has been described as an example of the mobile communication terminal. However, the present invention is not limited to this, and the mobile communication terminal is, for example, a PHS (Personal Handy phone). It may be realized by a System) terminal, a PDA (Personal Digital Assistance) terminal, or the like.

本発明は、無線ＬＡＮ通信機能を有する携帯電話機や、ＰＨＳ端末に利用することができる。   The present invention can be used for a mobile phone having a wireless LAN communication function and a PHS terminal.

本発明の実施の形態の一構成例を示すブロック図である。It is a block diagram which shows the example of 1 structure of embodiment of this invention. 携帯電話基地局および無線ＬＡＮ基地局の通信可能範囲を示す説明図である。It is explanatory drawing which shows the communication possible range of a mobile telephone base station and a wireless LAN base station. 本発明の実施の形態の動作を説明するフローチャートである。It is a flowchart explaining operation | movement of embodiment of this invention.

符号の説明Explanation of symbols

１０、２６、２８、２９ 携帯電話機
１１ 制御部
１２ 記憶部
１４ 携帯電話通信部
１５ 携帯電話通信用アンテナ
１６ 無線ＬＡＮ通信部
１７ 無線ＬＡＮ用アンテナ
２０ 第１の携帯通信可能範囲
２１、２３ 携帯電話基地局
２２ 第２の携帯通信可能範囲
２４ 無線ＬＡＮ通信可能範囲
２５ 無線ＬＡＮ基地局 10, 26, 28, 29 Mobile phone 11 Control unit 12 Storage unit 14 Mobile phone communication unit 15 Mobile phone communication antenna 16 Wireless LAN communication unit 17 Wireless LAN antenna 20 First mobile communication possible range 21, 23 Mobile phone base Station 22 Second portable communication range 24 Wireless LAN communication range 25 Wireless LAN base station

Claims (6)

移動体通信網に接続され、移動体通信端末と無線で通信し、通信可能範囲に無線ＬＡＮの基地局が存在するか否かを示す基地局存在情報を前記移動体通信端末に送信する移動体通信基地局と、
前記移動体通信基地局から受信した基地局存在情報に応じて、無線ＬＡＮ通信機能を活かす前記移動体通信端末とを備えた移動体通信システムであって、
前記移動体通信端末は、
前記移動体通信基地局と通信を行う移動体通信手段と、
前記無線ＬＡＮの基地局と通信を行う無線ＬＡＮ通信手段と、
前記移動体通信手段が無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、前記無線ＬＡＮ通信手段に電力を供給する制御手段と
を備えたことを特徴とする移動体通信システム。 A mobile unit connected to a mobile communication network, wirelessly communicating with a mobile communication terminal, and transmitting base station presence information indicating whether or not a wireless LAN base station exists in a communicable range to the mobile communication terminal A communication base station;
In accordance with base station presence information received from the mobile communication base station, a mobile communication system comprising the mobile communication terminal that utilizes a wireless LAN communication function,
The mobile communication terminal is
Mobile communication means for communicating with the mobile communication base station;
Wireless LAN communication means for communicating with the wireless LAN base station;
Control means for supplying power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that a wireless LAN base station exists. . 制御手段は、移動体通信手段が無線ＬＡＮの基地局が存在しないことを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段へ電力を供給しない
請求項１記載の移動体通信システム。 The mobile communication system according to claim 1, wherein the control means does not supply power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that there is no wireless LAN base station. 移動体通信基地局と通信を行う移動体通信手段と、
無線ＬＡＮの基地局と通信を行う無線ＬＡＮ通信手段と、
前記移動体通信手段が、前記移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、前記無線ＬＡＮ通信手段に電力を供給する制御手段と
を備えたことを特徴とする移動体通信端末。 Mobile communication means for communicating with a mobile communication base station;
Wireless LAN communication means for communicating with a wireless LAN base station;
Control means for supplying power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that a wireless LAN base station exists from the mobile communication base station. A mobile communication terminal characterized by the above. 制御手段は、移動体通信手段が無線ＬＡＮの基地局が存在しないことを示す基地局存在情報を受信すると、無線ＬＡＮ通信手段へ電力を供給しない
請求項３記載の移動体通信端末。 The mobile communication terminal according to claim 3, wherein the control means does not supply power to the wireless LAN communication means when the mobile communication means receives base station presence information indicating that there is no wireless LAN base station. 制御手段は、移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、移動体通信手段と無線ＬＡＮ通信手段との双方を待ち受け状態にさせる
請求項３または請求項４記載の移動体通信端末。 The control means, when receiving base station presence information indicating that a wireless LAN base station exists from the mobile communication base station, places both the mobile communication means and the wireless LAN communication means in a standby state. The mobile communication terminal according to claim 4. 移動体通信基地局と通信を行い、
前記移動体通信基地局から無線ＬＡＮの基地局が存在することを示す基地局存在情報を受信すると、無線ＬＡＮの基地局と通信を行う回路に電力を供給して無線ＬＡＮ通信機能を活かす
ことを特徴とする移動体通信方法。 Communicate with mobile communication base stations,
When receiving base station presence information indicating the presence of a wireless LAN base station from the mobile communication base station, power is supplied to a circuit that communicates with the wireless LAN base station to utilize the wireless LAN communication function. A mobile communication method.
JP2005114978A 2005-04-12 2005-04-12 Mobile communication system and its terminal, and its method Pending JP2006295643A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2083599A2 (en) 2008-01-24 2009-07-29 Fujitsu Limited Wireless communication terminal and wireless communication terminal control method
EP2104385A1 (en) 2008-03-18 2009-09-23 Fujitsu Limited Wireless communication method, base station, terminal and communication system for reducing interference between femtocells and macrocells
JP2011176588A (en) * 2010-02-24 2011-09-08 Kyocera Corp Portable terminal equipment and radio communication system
WO2011111443A1 (en) 2010-03-08 2011-09-15 日本電気株式会社 Mobile communication terminal apparatus, method for controlling power consumption of mobile communication terminal apparatus, and recording medium
US8094636B2 (en) 2007-08-27 2012-01-10 Hitachi, Ltd. Wireless communication system for communicating via wireless LAN
JP2015019265A (en) * 2013-07-11 2015-01-29 日本電気株式会社 Mobile terminal, mobile phone service provider system, radio communication system, control method, and control program
US9094894B2 (en) 2009-01-23 2015-07-28 Fujitsu Limited Wireless communication terminal and wireless communication terminal control method
JPWO2021193106A1 (en) * 2020-03-27 2021-09-30
WO2021192836A1 (en) * 2020-03-23 2021-09-30 シャープ株式会社 Base station, terminal, communication system, and control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054137A1 (en) * 2002-12-12 2004-06-24 Electronics And Telecommunications Research Institute Method for automatically searching wireless lan access point and terminal for processing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004054137A1 (en) * 2002-12-12 2004-06-24 Electronics And Telecommunications Research Institute Method for automatically searching wireless lan access point and terminal for processing the same

Cited By (14)

* Cited by examiner, † Cited by third party
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US8094636B2 (en) 2007-08-27 2012-01-10 Hitachi, Ltd. Wireless communication system for communicating via wireless LAN
EP2083599A2 (en) 2008-01-24 2009-07-29 Fujitsu Limited Wireless communication terminal and wireless communication terminal control method
EP2104385A1 (en) 2008-03-18 2009-09-23 Fujitsu Limited Wireless communication method, base station, terminal and communication system for reducing interference between femtocells and macrocells
US8259685B2 (en) 2008-03-18 2012-09-04 Fujitsu Limited Wireless communication method, wireless base station, wireless terminal, and wireless communication system
US9094894B2 (en) 2009-01-23 2015-07-28 Fujitsu Limited Wireless communication terminal and wireless communication terminal control method
JP2011176588A (en) * 2010-02-24 2011-09-08 Kyocera Corp Portable terminal equipment and radio communication system
WO2011111443A1 (en) 2010-03-08 2011-09-15 日本電気株式会社 Mobile communication terminal apparatus, method for controlling power consumption of mobile communication terminal apparatus, and recording medium
US9078213B2 (en) 2010-03-08 2015-07-07 Lenovo Innovations Limited (Hong Kong) Mobile communication terminal apparatus, method of controlling power consumption of mobile communication terminal apparatus, and recording medium
JP2015019265A (en) * 2013-07-11 2015-01-29 日本電気株式会社 Mobile terminal, mobile phone service provider system, radio communication system, control method, and control program
WO2021192836A1 (en) * 2020-03-23 2021-09-30 シャープ株式会社 Base station, terminal, communication system, and control method
JPWO2021192836A1 (en) * 2020-03-23 2021-09-30
CN115244983A (en) * 2020-03-23 2022-10-25 夏普株式会社 Base station, terminal, communication system, and control method
JPWO2021193106A1 (en) * 2020-03-27 2021-09-30
WO2021193106A1 (en) * 2020-03-27 2021-09-30 シャープ株式会社 Terminal, communication system, and control method

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