WO2001035115A1 - Mobile station and method of position estimation - Google Patents

Mobile station and method of position estimation Download PDF

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Publication number
WO2001035115A1
WO2001035115A1 PCT/JP2000/007679 JP0007679W WO0135115A1 WO 2001035115 A1 WO2001035115 A1 WO 2001035115A1 JP 0007679 W JP0007679 W JP 0007679W WO 0135115 A1 WO0135115 A1 WO 0135115A1
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WIPO (PCT)
Prior art keywords
position information
station device
mobile station
base station
information
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PCT/JP2000/007679
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French (fr)
Japanese (ja)
Inventor
Akinori Tatsumi
Original Assignee
Matsushita Electric Industrial Co., Ltd.
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.)
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Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to AU10525/01A priority Critical patent/AU1052501A/en
Publication of WO2001035115A1 publication Critical patent/WO2001035115A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations

Definitions

  • the present invention relates to a mobile station device used in a mobile communication system and for estimating the position of the own station and a position estimating method.
  • the base station having the azimuth detection function estimates the position of the mobile station from the arrival direction and delay time of the signal transmitted from the mobile station, and the mobile station transmits the signal from the base station. It receives the position information and recognizes the position of its own station.
  • the cell radius of current mobile phones is about 1 km, and the conventional position estimation method has a problem that its accuracy is limited (about 9 m). Disclosure of the invention
  • An object of the present invention is to provide a mobile station apparatus and a position estimating method capable of estimating the position of the own station with high accuracy.
  • FIG. 1 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 1 of the present invention
  • FIG. 2 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 2 of the present invention
  • FIG. 3 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 3 of the present invention.
  • FIG. 4 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 4 of the present invention.
  • FIG. 1 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 1.
  • mobile station 1 can receive information from navigation device 2 via interface 3. Further, the mobile station 1 performs wireless communication with a plurality of base stations 4, and each base station 4 performs wired communication with an LCS (location service) server 5.
  • LCS location service
  • the mobile station 1 mainly includes a transmission / reception unit 11, a position estimation unit 12, an information acquisition unit 13, and a comprehensive judgment unit 14.
  • the transmission / reception unit 11 transmits / receives a radio signal to / from the base station device 4.
  • the position estimating unit 12 estimates the position of the own station based on the signal received by the transmitting / receiving unit 11 and generates first position information indicating the estimation result.
  • the first position information includes accuracy information corresponding to the arrangement interval, in which the accuracy increases as the arrangement interval of the base station device 4 decreases.
  • the information acquisition unit 13 acquires the second position information estimated by the navigation device 2 via the interface 3.
  • the second location information includes the GPS location Accuracy information according to the arrangement interval is included, as the smaller the arrangement interval of the information notification device, the higher the accuracy.
  • the comprehensive judgment unit 14 determines the position of the mobile station 1 by performing a weighted average of the first position information and the second position information according to the accuracy. For example, if the limit of the accuracy of the first position information (Xl, Y1) is about 9 m and the limit of the accuracy of the second position information (X2, Y2) is about 3 m, the comprehensive judgment unit 14 The position (X3, Y3) of the mobile station 1 is determined from the following equation (1).
  • the navigation device 2 has a position estimating unit 21 that estimates the position of the own device using the GPS and outputs second position information indicating the estimation result to the information acquiring unit 13.
  • the accuracy information included in the second position information is provided to the position information notification device through system parameters according to the station setting conditions of the own device, and is provided to the position information notification device in one system parameter.
  • the LCS server 5 includes a transmission / reception unit 51 and an information providing unit 52, receives a signal transmitted from the mobile station 1 via the base station 4, and, depending on the content of the received signal, via the base station 4.
  • the service information required for the mobile station is transmitted.
  • the services provided by the LCS server 5 are mainly of three types: commercial LCS, internal LCS, and emergency LCS.
  • Commercial LCS is intended to provide service subscribers with value-added services such as restaurant directories.
  • the internal LCS is a service provided for UTRAN internal operations such as location assist handover.
  • Emergency LCS is a service for assisting emergency call subscribers.
  • the description of the internal configuration of the base station 4 is omitted.
  • the position information estimated by the mobile station itself is used together with the position information and accuracy information obtained by using the GPS in the navigation device, so that the mobile station can comprehensively determine its own position. By making the determination, the mobile station can accurately determine its own location. Can be estimated.
  • the present invention is not limited to the type of the interface 3 between the mobile station 1 and the navigation device 2, and may be a wired external control communication interface or a wireless peripheral device interface. Good.
  • the reception sequence for receiving the position information transmitted from the navigation device in the mobile station may be the same as the reception sequence for receiving the signal transmitted from the base station.
  • FIG. 2 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 2. Note that, in the mobile communication system of FIG. 2, components that are the same as those of FIG. 1 described in Embodiment 1 are given the same reference numerals as in FIG. 1, and descriptions thereof are omitted.
  • the mobile communication system of FIG. 2 adopts a configuration in which the general judgment section 14 of the mobile station 1 is deleted and the general judgment section 53 is added to the LCS server 5 as compared with FIG.
  • the position estimating unit 12 In the mobile station 1, the position estimating unit 12 generates first position information indicating the result of estimating the position of the own station, and outputs the first position information to the transmitting / receiving unit 11. Further, the information acquisition unit 13 acquires the second position information estimated by the navigation device 2, and outputs the second position information to the transmission / reception unit 11. Then, the transmitting / receiving unit 11 transmits the first position information and the second position information to the LCS server 5 via the base station 4.
  • the comprehensive determination unit 53 of the LCS server 5 determines the position of the mobile station 1 by performing a weighted average of the input first position information and the input second position information according to the accuracy.
  • the transmission / reception unit 51 transmits the judgment result of the comprehensive judgment unit 53 to the mobile station 1 via the base station 4.
  • the mobile station 1 can estimate the position of the mobile station with high accuracy by receiving the determination result.
  • the position information estimated by the mobile station itself and the navigation device The location information obtained by using the PS is transmitted to the LCS server, and the LCS server comprehensively determines the location of the mobile station, so that the location of the mobile station can be estimated with high accuracy. Since the mobile station does not need to perform comprehensive judgment processing, the size and weight of the mobile station can be reduced.
  • FIG. 3 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 3.
  • the same components as those of FIG. 2 described in the second embodiment are denoted by the same reference numerals as in FIG. 2, and description thereof will be omitted.
  • the mobile communication system in FIG. 3 adopts a configuration in which the position estimating unit 13 of the mobile station 1 is deleted and a position estimating unit 54 is added to the LCS server 5, as compared with FIG.
  • the transmitting / receiving section 11 of the mobile station 1 transmits the second position information to the LCS server 5 via the base station 4.
  • the position estimating unit 54 estimates the position of the mobile station from the arrival direction and the received power of the signal received by the base station 4, generates first position information indicating the estimation result, and 5 Output to 3.
  • the comprehensive determination unit 53 determines the position of the mobile station 1 by performing a weighted average of the first position information input from the position estimation unit 54 and the second position information input from the base station 4 according to accuracy. .
  • the navigation device transmits the location information obtained by using the GPS to the LCS server, and the LCS server 5 sends the location information based on the location information and the location of the mobile station estimated by the LCS server.
  • FIG. 4 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 4.
  • the same reference numerals as in FIG. 1 denote the same parts as in FIG. 1 described in Embodiment 1, and a description thereof will be omitted.
  • the mobile communication system in FIG. 4 has a configuration in which a position information notification device 6 is added instead of the navigation device 2 as compared with FIG.
  • the position information reporting device 6 constantly reports information on the current position.
  • the information acquisition unit 13 acquires, as second position information, information on the current position reported from the position information reporting device.
  • the position of the mobile station can be estimated with high accuracy even if the position information notified from the position information notification device is used instead of the position information estimated by the navigation device.
  • the mobile station 1 has a configuration in which the mobile station 1 receives the signal transmitted from the base station and the location information broadcast from the location information broadcast device 6 in the same reception sequence.
  • the present invention is not limited to this, and the reception sequence may be separated.
  • Embodiment 4 can be appropriately combined with Embodiments 2 and 3 described above.
  • the position information estimated by the mobile station itself and the position information estimated by the external device are used together to determine the position of the mobile station. Since the overall judgment can be made, the position of the mobile station can be estimated with high accuracy.
  • Suitable for use in a mobile communication system having a function of estimating the position of a mobile station device Suitable for use in a mobile communication system having a function of estimating the position of a mobile station device. Suitable.

Abstract

A mobile station (1) includes a position-estimating section (12) that estimates the position of the mobile station (1) itself and generates first position information indicative of the estimated position. An information acquisition section (13) acquires second position information indicative of the position estimated by a navigation device (2) from a position-estimating section of the navigation device (2). A section (14) determines the position of the mobile station (1) integrally based on the first position information and the second position information. This provides an estimate of the position of a mobile station with high accuracy.

Description

明 細 書 移動局装置及び位置推定方法 技術分野  Description Mobile station equipment and position estimation method
本発明は、 移動体通信システムに使用され、 自局の位置を推定する移動局装 置及び位置推定方法に関する。 背景技術  The present invention relates to a mobile station device used in a mobile communication system and for estimating the position of the own station and a position estimating method. Background art
移動体通信システムの移動局の位置を推定する方式として、 従来から方位探 知機能を用いたものが知られており、 特開平 1 1— 2 1 5 5 4 3号公報等に記 載されている。  As a method for estimating the position of a mobile station in a mobile communication system, a method using an azimuth detecting function has been known, and it is described in Japanese Patent Application Laid-Open No. H11-215543, etc. I have.
この方位探知機能を用いた位置推定方式は、 方位探知機能を持つ基地局が移 動局から送信された信号の到来方向と遅延時間から移動局の位置を推定し、 移 動局が基地局から位置情報を受信して自局の位置を認識するものである。 しかしながら、 現在の携帯電話のセル半径は約 l km であり、 上記従来の位 置推定方式では、 その精度に限界 （約 9 m) があるという問題を有する。 発明の開示  In this position estimation method using the azimuth detection function, the base station having the azimuth detection function estimates the position of the mobile station from the arrival direction and delay time of the signal transmitted from the mobile station, and the mobile station transmits the signal from the base station. It receives the position information and recognizes the position of its own station. However, the cell radius of current mobile phones is about 1 km, and the conventional position estimation method has a problem that its accuracy is limited (about 9 m). Disclosure of the invention
本発明の目的は、 自局の位置を高精度に推定することができる移動局装置及 び位置推定方法を提供することである。  An object of the present invention is to provide a mobile station apparatus and a position estimating method capable of estimating the position of the own station with high accuracy.
この目的は、 移動局自体が推定した位置情報と、 ナビゲーシヨン装置等の外 部装置にて推定された位置情報とを併用し、 当該移動局の位置を総合的に判断 することにより達成される。 図面の簡単な説明 図 1は、 本発明の実施の形態 1に係る移動局を含む移動体通信システムの装 置構成を示すシステム構成図、 This object is achieved by using the position information estimated by the mobile station itself and the position information estimated by an external device such as a navigation device to comprehensively determine the position of the mobile station. . BRIEF DESCRIPTION OF THE FIGURES FIG. 1 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 1 of the present invention,
図 2は、 本発明の実施の形態 2に係る移動局を含む移動体通信システムの装 置構成を示すシステム構成図、  FIG. 2 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 2 of the present invention,
図 3は、 本発明の実施の形態 3に係る移動局を含む移動体通信システムの装 置構成を示すシステム構成図、 及び、  FIG. 3 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 3 of the present invention, and
図 4は、 本発明の実施の形態 4に係る移動局を含む移動体通信システムの装 置構成を示すシステム構成図である。 発明を実施するための最良の形態  FIG. 4 is a system configuration diagram showing an apparatus configuration of a mobile communication system including a mobile station according to Embodiment 4 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施の形態について、 図面を用いて説明する。  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(実施の形態 1 )  (Embodiment 1)
図 1は、 実施の形態 1に係る移動局を含む移動体通信システムの装置構成を 示すシステム構成図である。  FIG. 1 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 1.
図 1において、 本実施の形態に係る移動局 1は、 インターフェース 3を介し てナビゲーシヨン装置 2から情報を受信することができる。 また、移動局 1は、 複数の基地局 4と無線通信を行い、 各基地局 4は、 L C S (ロケーションサー ビス） サーバ 5と有線通信を行う。  In FIG. 1, mobile station 1 according to the present embodiment can receive information from navigation device 2 via interface 3. Further, the mobile station 1 performs wireless communication with a plurality of base stations 4, and each base station 4 performs wired communication with an LCS (location service) server 5.
移動局 1は、 送受信部 1 1と、 位置推定部 1 2と、 情報取得部 1 3と、 総合 判断部 1 4とから主に構成されている。  The mobile station 1 mainly includes a transmission / reception unit 11, a position estimation unit 12, an information acquisition unit 13, and a comprehensive judgment unit 14.
送受信部 1 1は、基地局装置 4と無線信号を送受信する。位置推定部 1 2は、 送受信部 1 1に受信された信号に基づいて自局の位置を推定して推定結果を示 す第 1位置情報を生成する。 なお、 第 1位置情報には、 基地局装置 4の配置間 隔が狭 ゝほど精度が高くなる、 配置間隔に応じた精度情報が含まれる。  The transmission / reception unit 11 transmits / receives a radio signal to / from the base station device 4. The position estimating unit 12 estimates the position of the own station based on the signal received by the transmitting / receiving unit 11 and generates first position information indicating the estimation result. Note that the first position information includes accuracy information corresponding to the arrangement interval, in which the accuracy increases as the arrangement interval of the base station device 4 decreases.
情報取得部 1 3は、 インタ一フェース 3を介してナビ^ーシヨン装置 2にて 推定された第 2位置情報を取得する。 なお、 第 2位置情報には、 G P Sの位置 情報報知装置の配置間隔が狭いほど精度が高くなる、 配置間隔に応じた精度情 報が含まれる。 The information acquisition unit 13 acquires the second position information estimated by the navigation device 2 via the interface 3. The second location information includes the GPS location Accuracy information according to the arrangement interval is included, as the smaller the arrangement interval of the information notification device, the higher the accuracy.
総合判断部 14は、 第 1位置情報と第 2位置情報に含まれる精度情報に基づ き、 精度に従って第 1位置情報と第 2位置情報を加重平均して移動局 1の位置 を判断する。 例えば、 第 1位置情報 （X l， Y 1) の精度の限界が約 9mであ り、 第 2位置情報 （X2, Y2) の精度の限界が約 3 mである場合、 総合判断 部 14は、 以下の式 （1) より、 移動局 1の位置 （X3， Y3) を判断する。  Based on the accuracy information included in the first position information and the second position information, the comprehensive judgment unit 14 determines the position of the mobile station 1 by performing a weighted average of the first position information and the second position information according to the accuracy. For example, if the limit of the accuracy of the first position information (Xl, Y1) is about 9 m and the limit of the accuracy of the second position information (X2, Y2) is about 3 m, the comprehensive judgment unit 14 The position (X3, Y3) of the mobile station 1 is determined from the following equation (1).
X 3 = (3 XX 1 + 9 XX2) / 1 2  X 3 = (3 XX 1 + 9 XX2) / 1 2
Y3= (3 XY 1 + 9 XY2) /\ 2 - (1)  Y3 = (3 XY 1 + 9 XY2) / \ 2-(1)
ナビゲ一シヨン装置 2は、 GP Sを利用して自装置の位置を推定し、 推定結 果を示す第 2位置情報を情報取得部 1 3に出力する位置推定部 2 1を有する。 なお、 第 2位置情報に含まれる精度情報は、 自装置の置局条件により、 フィー ルドでの調整を経て、 位置情報報知装置にシステムパラメ一夕で与えられる。  The navigation device 2 has a position estimating unit 21 that estimates the position of the own device using the GPS and outputs second position information indicating the estimation result to the information acquiring unit 13. The accuracy information included in the second position information is provided to the position information notification device through system parameters according to the station setting conditions of the own device, and is provided to the position information notification device in one system parameter.
LCSサーバ 5は、 送受信部 5 1及び情報提供部 52を有し、 移動局 1から 送信された信号を基地局 4を介して受信し、 受信信号の内容に応じて、 基地局 4を介して移動局に必要なサービス情報等を送信する。  The LCS server 5 includes a transmission / reception unit 51 and an information providing unit 52, receives a signal transmitted from the mobile station 1 via the base station 4, and, depending on the content of the received signal, via the base station 4. The service information required for the mobile station is transmitted.
L C Sサーバ 5が提供するサービスは、 主に商用 LCS、 内部 LCS、 緊急 LCSの 3種類である。 商用 LCSは、 サービス加入者にレストランディレク トリ等の付加価値サービスを提供するためのものである。 内部 LCSは、 ロケ ーションアシストハンドオーバ等の UTRAN内部運用のために行われるサー ビスである。 緊急 LCSは、 緊急呼の加入者をアシストするためのサービスで ある。  The services provided by the LCS server 5 are mainly of three types: commercial LCS, internal LCS, and emergency LCS. Commercial LCS is intended to provide service subscribers with value-added services such as restaurant directories. The internal LCS is a service provided for UTRAN internal operations such as location assist handover. Emergency LCS is a service for assisting emergency call subscribers.
なお、 基地局 4の内部構成に関する説明は省略する。  The description of the internal configuration of the base station 4 is omitted.
このように、 移動局自体が推定した位置情報と、 ナビゲ一シヨン装置にて G P Sを利用して得られた位置情報及び精度情報とを併用し、 当該移動局が自局 の位置を総合的に判断することにより、 当該移動局は、 自局の位置を高精度に 推定することができる。 In this way, the position information estimated by the mobile station itself is used together with the position information and accuracy information obtained by using the GPS in the navigation device, so that the mobile station can comprehensively determine its own position. By making the determination, the mobile station can accurately determine its own location. Can be estimated.
なお、 本発明は、 移動局 1とナビゲーシヨン装置 2とのインターフェース 3 の形式等に限定はなく、有線による外部制御用通信イン夕フェースであっても、 無線による周辺装置用インターフェースであってもよい。 無線ィンターフェ一 スの場合、 移動局において、 ナビゲ一シヨン装置から送信された位置情報を受 信する受信系列は、 基地局から送信された信号を受信する受信系列と同一であ つてもよい。  The present invention is not limited to the type of the interface 3 between the mobile station 1 and the navigation device 2, and may be a wired external control communication interface or a wireless peripheral device interface. Good. In the case of the radio interface, the reception sequence for receiving the position information transmitted from the navigation device in the mobile station may be the same as the reception sequence for receiving the signal transmitted from the base station.
(実施の形態 2 )  (Embodiment 2)
図 2は、 実施の形態 2に係る移動局を含む移動体通信システムの装置構成を 示すシステム構成図である。 なお、 図 2の移動体通信システムにおいて、 上記 実施の形態 1で説明した図 1と共通する構成部分に関しては、 図 1と同一符号 を付して説明を省略する。  FIG. 2 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 2. Note that, in the mobile communication system of FIG. 2, components that are the same as those of FIG. 1 described in Embodiment 1 are given the same reference numerals as in FIG. 1, and descriptions thereof are omitted.
図 2の移動体通信システムは、 図 1と比較して、 移動局 1の総合判断部 1 4 を削除し、 L C Sサーバ 5に総合判断部 5 3を追加した構成を採る。  The mobile communication system of FIG. 2 adopts a configuration in which the general judgment section 14 of the mobile station 1 is deleted and the general judgment section 53 is added to the LCS server 5 as compared with FIG.
移動局 1において、 位置推定部 1 2は、 自局の位置を推定した結果を示す第 1位置情報を生成し、 第 1位置情報を送受信部 1 1に出力する。 また、 情報取 得部 1 3は、 ナビゲーシヨン装置 2にて推定された第 2位置情報を取得し、 第 2位置情報を送受信部 1 1に出力する。 そして、 送受信部 1 1は、 基地局 4を 介して第 1位置情報及び第 2位置情報を L C Sサーバ 5に送信する。  In the mobile station 1, the position estimating unit 12 generates first position information indicating the result of estimating the position of the own station, and outputs the first position information to the transmitting / receiving unit 11. Further, the information acquisition unit 13 acquires the second position information estimated by the navigation device 2, and outputs the second position information to the transmission / reception unit 11. Then, the transmitting / receiving unit 11 transmits the first position information and the second position information to the LCS server 5 via the base station 4.
L C Sサーバ 5の総合判断部 5 3は、 入力した第 1位置情報と第 2位置情報 を、 精度に従って加重平均して移動局 1の位置を判断する。  The comprehensive determination unit 53 of the LCS server 5 determines the position of the mobile station 1 by performing a weighted average of the input first position information and the input second position information according to the accuracy.
送受信部 5 1は、 基地局 4を介して移動局 1に総合判断部 5 3の判断結果を 送信する。  The transmission / reception unit 51 transmits the judgment result of the comprehensive judgment unit 53 to the mobile station 1 via the base station 4.
移動局 1は、 この判断結果を受信することにより自局の位置を高精度に推定 することができる。  The mobile station 1 can estimate the position of the mobile station with high accuracy by receiving the determination result.
このように、 移動局自体が推定した位置情報と、 ナビゲ一シヨン装置にて G P Sを利用して得られた位置情報とを L C Sサーバに送信し、 L C Sサーバが 当該移動局の位置を総合的に判断することにより、 当該移動局の位置を高精度 に推定することができるとともに、 当該移動局が総合判断処理を行う必要がな いので、 移動局の小型化、 軽量化を図ることができる。 In this way, the position information estimated by the mobile station itself and the navigation device The location information obtained by using the PS is transmitted to the LCS server, and the LCS server comprehensively determines the location of the mobile station, so that the location of the mobile station can be estimated with high accuracy. Since the mobile station does not need to perform comprehensive judgment processing, the size and weight of the mobile station can be reduced.
(実施の形態 3 )  (Embodiment 3)
図 3は、 実施の形態 3に係る移動局を含む移動体通信システムの装置構成を 示すシステム構成図である。 なお、 図 3の移動体通信システムにおいて、 上記 実施の形態 2で説明した図 2と共通する構成部分に関しては、 図 2と同一符号 を付して説明を省略する。  FIG. 3 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 3. In the mobile communication system of FIG. 3, the same components as those of FIG. 2 described in the second embodiment are denoted by the same reference numerals as in FIG. 2, and description thereof will be omitted.
図 3の移動体通信システムは、 図 2と比較して、 移動局 1の位置推定部 1 3 を削除し、 L C Sサーバ 5に位置推定部 5 4を追加した構成を採る。  The mobile communication system in FIG. 3 adopts a configuration in which the position estimating unit 13 of the mobile station 1 is deleted and a position estimating unit 54 is added to the LCS server 5, as compared with FIG.
移動局 1の送受信部 1 1は、 基地局 4を介して第 2位置情報を L C Sサーバ 5に送信する。  The transmitting / receiving section 11 of the mobile station 1 transmits the second position information to the LCS server 5 via the base station 4.
L C Sサーバ 5において、 位置推定部 5 4は、 基地局 4に受信された信号の 到来方向と受信電力から移動局の位置を推定し、 推定結果を示す第 1位置情報 を生成して総合判断部 5 3に出力する。  In the LCS server 5, the position estimating unit 54 estimates the position of the mobile station from the arrival direction and the received power of the signal received by the base station 4, generates first position information indicating the estimation result, and 5 Output to 3.
そして、 総合判断部 5 3は、 位置推定部 5 4から入力した第 1位置情報と基 地局 4から入力した第 2位置情報を、 精度に従って加重平均して移動局 1の位 置を判断する。  Then, the comprehensive determination unit 53 determines the position of the mobile station 1 by performing a weighted average of the first position information input from the position estimation unit 54 and the second position information input from the base station 4 according to accuracy. .
このように、 ナビゲ一シヨン装置にて G P Sを利用して得られた位置情報と を L C Sサーバに送信し、 L C Sサーバ 5が、 この位置情報と L C Sサーバが 推定した移動局の位置とに基づいて、 当該移動局の位置を総合的に判断するこ とにより、 当該移動局の位置を高精度に推定することができるとともに、 当該 移動局が位置推定処理を行う必要がないので、 移動局のさらなる小型化、 軽量 化を図ることができる。  In this way, the navigation device transmits the location information obtained by using the GPS to the LCS server, and the LCS server 5 sends the location information based on the location information and the location of the mobile station estimated by the LCS server. By comprehensively determining the position of the mobile station, it is possible to estimate the position of the mobile station with high accuracy, and it is not necessary for the mobile station to perform position estimation processing. The size and weight can be reduced.
(実施の形態 4 ) 図 4は、 実施の形態 4に係る移動局を含む移動体通信システムの装置構成を 示すシステム構成図である。 なお、 図 4の移動体通信システムにおいて、 上記 実施の形態 1で説明した図 1と共通する構成部分に関しては、 図 1と同一符号 を付して説明を省略する。 (Embodiment 4) FIG. 4 is a system configuration diagram showing a device configuration of a mobile communication system including a mobile station according to Embodiment 4. In the mobile communication system of FIG. 4, the same reference numerals as in FIG. 1 denote the same parts as in FIG. 1 described in Embodiment 1, and a description thereof will be omitted.
図 4の移動体通信システムは、 図 1と比較して、 ナビゲ一シヨン装置 2の代 りに位置情報報知装置 6を追加した構成を採る。  The mobile communication system in FIG. 4 has a configuration in which a position information notification device 6 is added instead of the navigation device 2 as compared with FIG.
位置情報報知装置 6は、現在位置の情報を常時報知する。情報取得部 1 3は、 位置情報報知装置から報知されている現在位置の情報を第 2位置情報として取 得する。  The position information reporting device 6 constantly reports information on the current position. The information acquisition unit 13 acquires, as second position information, information on the current position reported from the position information reporting device.
このように、 ナビゲ一シヨン装置にて推定された位置情報の代りに、 位置情 報報知装置から報知される位置情報を用いても、 当該移動局の位置を高精度に 推定することができる。  As described above, the position of the mobile station can be estimated with high accuracy even if the position information notified from the position information notification device is used instead of the position information estimated by the navigation device.
なお、 上記実施の形態では、 移動局 1が、 基地局から送信された信号と位置 情報報知装置 6から報知された位置情報を同一の受信系列で受信する構成を採 つているが、 本発明はこれに限られず受信系列を別けてもよい。  In the above embodiment, the mobile station 1 has a configuration in which the mobile station 1 receives the signal transmitted from the base station and the location information broadcast from the location information broadcast device 6 in the same reception sequence. The present invention is not limited to this, and the reception sequence may be separated.
また、 実施の形態 4は、 上記実施の形態 2及び 3と適宜組み合わせることが できる。  Further, Embodiment 4 can be appropriately combined with Embodiments 2 and 3 described above.
以上説明したように、 本発明の移動局装置及び位置推定方法によれば、 移動 局自体が推定した位置情報と、 外部装置にて推定された位置情報とを併用し、 当該移動局の位置を総合的に判断することができるので、 当該移動局の位置を 高精度に推定することができる。  As described above, according to the mobile station apparatus and the position estimation method of the present invention, the position information estimated by the mobile station itself and the position information estimated by the external device are used together to determine the position of the mobile station. Since the overall judgment can be made, the position of the mobile station can be estimated with high accuracy.
本明細書は、 1 9 9 9年 1 1月 5日出願の特願平 1 1 一 3 1 5 4 9 6に基づ くものである。 この内容をここに含めておく。 産業上の利用可能性  The present specification is based on Japanese Patent Application No. 11-131540 filed on Jan. 5, 1999. This content is included here. Industrial applicability
移動局装置の位置を推定する機能を有する移動体通信システムに用いるに好 適である。 Suitable for use in a mobile communication system having a function of estimating the position of a mobile station device. Suitable.

Claims

請 求 の 範 囲 The scope of the claims
1 . 基地局装置と無線信号を送受信する送受信手段と、 この送受信手段に受信 された信号に基づいて自局の位置を推定し、 推定結果を示す第 1位置情報を生 成する位置推定手段と、 外部から自局の位置を示す第 2位置情報を取得する情 報取得手段と、 前記第 1位置情報と前記第 2位置情報とに基づいて自局の位置 を判断する総合判断手段とを具備する移動局装置。  1. Transmitting / receiving means for transmitting / receiving a radio signal to / from a base station apparatus, and position estimating means for estimating a position of the own station based on a signal received by the transmitting / receiving means and generating first position information indicating an estimation result. Information obtaining means for obtaining second position information indicating the position of the own station from outside, and comprehensive determining means for determining the position of the own station based on the first position information and the second position information. Mobile station equipment.
2 . 総合判断手段は、 第 1位置情報と第 2位置情報の精度に従って、 第 1位置 情報と第 2位置情報を加重平均して自局の位置を判断する移動局装置。  2. A mobile station device that determines the position of its own station by performing a weighted average of the first position information and the second position information according to the accuracy of the first position information and the second position information.
3 . 基地局装置と無線信号を送受信する送受信手段と、 この送受信手段に受信 された信号に基づいて自局の位置を推定し、 推定結果を示す第 1位置情報を生 成する位置推定手段と、 外部から自局の位置を示す第 2位置情報を取得する情 報取得手段とを具備し、 前記送受信手段は、 前記基地局装置を介して制御局装 置に前記第 1位置情報及び前記第 2位置情報を送信し、 前記制御局装置で判断 された自局の位置を前記基地局装置から受信する移動局装置。  3. Transmitting / receiving means for transmitting / receiving a radio signal to / from the base station apparatus, and position estimating means for estimating a position of the own station based on a signal received by the transmitting / receiving means and generating first position information indicating an estimation result. And information acquisition means for acquiring second position information indicating the position of the own station from outside, wherein the transmission / reception means transmits the first position information and the second position information to a control station device via the base station device. (2) A mobile station device that transmits position information and receives the position of the own station determined by the control station device from the base station device.
4 . 基地局装置と無線信号を送受信する送受信手段と、 外部から自局の位置を 示す第 2位置情報を取得する情報取得手段とを具備し、 前記送受信手段は、 前 記基地局装置を介して制御局装置に前記第 2位置情報を送信し、 前記制御局装 置で判断された自局の位置を前記基地局装置から受信する移動局装置。 4. A transmission / reception means for transmitting / receiving a radio signal to / from the base station apparatus, and an information acquisition means for acquiring second position information indicating the position of the own station from outside, wherein the transmission / reception means is provided via the base station apparatus. A mobile station device that transmits the second position information to the control station device, and receives the position of the own station determined by the control station device from the base station device.
5 . 情報取得手段は、 ナビゲーシヨン装置から第 2位置情報を取得する請求の 範囲 1記載の移動局装置。  5. The mobile station device according to claim 1, wherein the information obtaining means obtains the second position information from the navigation device.
6 . 情報取得手段は、 位置情報報知装置から報知された第 2位置情報を取得す る請求の範囲 1記載の移動局装置。  6. The mobile station device according to claim 1, wherein the information obtaining means obtains the second position information notified from the position information notification device.
7 . 基地局装置と有線信号を送受信する送受信手段と、 前記基地局装置を介し て請求の範囲 3記載の移動局装置から送信された第 1位置情報と第 2位置情報 とに基づいて前記移動局装置の位置を判断する総合判断手段とを具備し、 前記 送受信手段は、 前記基地局装置を介して前記移動局装置に判断結果を送信する 制御局装置。 7. Transmission / reception means for transmitting / receiving a wired signal to / from the base station apparatus, and the mobile station based on the first position information and the second position information transmitted from the mobile station apparatus according to claim 3 via the base station apparatus. And a comprehensive judgment unit for judging the position of the station device, wherein the transmission / reception unit transmits a judgment result to the mobile station device via the base station device. Control station device.
8 . 基地局装置と有線信号を送受信する送受信手段と、 請求の範囲 4記載の移 動局装置から送信され前記基地局装置に受信された信号に基づいて前記移動局 装置の位置を推定し、推定結果を示す第 1位置情報を生成する位置推定手段と、 この位置推定手段にて生成された第 1位置情報と前記基地局装置を介して前記 移動局装置から送信された第 2位置情報とに基づいて前記移動局装置の位置を 判断する総合判断手段とを具備し、 前記送受信手段は、 前記基地局装置を介し て前記移動局装置に判断結果を送信する制御局装置。  8. Transmission / reception means for transmitting / receiving a wired signal to / from the base station device, and estimating the position of the mobile station device based on a signal transmitted from the mobile station device and received by the base station device according to claim 4, Position estimating means for generating first position information indicating an estimation result; first position information generated by the position estimating means; and second position information transmitted from the mobile station device via the base station device. A control station apparatus for determining the position of the mobile station apparatus based on the control information, wherein the transmission / reception means transmits a determination result to the mobile station apparatus via the base station apparatus.
9 . 移動局装置が、 基地局装置から送信された信号に基づいて自局の位置を推 定して推定結果を示す第 1位置情報を生成し、 外部から自局の位置を示す第 2 位置情報を取得し、 前記第 1位置情報と前記第 2位置情報とに基づいて自局の 位置を判断する位置推定方法。  9. The mobile station device estimates the position of the own station based on the signal transmitted from the base station device, generates first position information indicating the estimation result, and externally indicates the second position indicating the position of the own station. A position estimating method for acquiring information and determining a position of the own station based on the first position information and the second position information.
1 0 . 移動局装置が、 基地局装置から送信された信号に基づいて自局の位置を 推定して推定結果を示す第 1位置情報を生成し、 外部から自局の位置を示す第 2位置情報を取得し、 前記基地局装置を介して制御局装置に前記第 1位置情報 と前記第 2位置情報とを送信し、 前記制御局装置が、 前記第 1位置情報と前記 第 2位置情報に基づいて前記移動局装置の位置を判断し、 前記基地局装置を介 して前記移動局装置に判断結果を送信する位置推定方法。  10. The mobile station apparatus estimates the position of the own station based on the signal transmitted from the base station apparatus, generates first position information indicating the estimation result, and externally indicates the second position indicating the position of the own station. Information, transmitting the first location information and the second location information to the control station apparatus via the base station apparatus, and the control station apparatus transmits the first location information and the second location information to the control station apparatus. A position estimating method for determining a position of the mobile station device based on the determination result, and transmitting a determination result to the mobile station device via the base station device.
1 1 . 移動局装置が、 外部から自局の位置を示す第 2位置情報を取得し、 基地 局装置を介して制御局装置に前記第 2位置情報とを送信し、前記制御局装置が、 前記移動局装置から送信されて前記基地局装置に受信された信号に基づいて前 記移動局装置の位置を推定し、 推定結果を示す第 1位置情報を生成し、 前記第 1位置情報と前記第 2位置情報に基づいて前記移動局装置の位置を判断し、 前 記基地局装置を介して前記移動局装置に判断結果を送信する位置推定方法。  1 1. The mobile station device acquires second position information indicating the position of the own station from the outside, transmits the second position information to the control station device via the base station device, and the control station device Estimating the position of the mobile station device based on a signal transmitted from the mobile station device and received by the base station device, generating first position information indicating an estimation result, and A position estimating method for determining a position of the mobile station device based on second position information, and transmitting a determination result to the mobile station device via the base station device.
PCT/JP2000/007679 1999-11-05 2000-11-01 Mobile station and method of position estimation WO2001035115A1 (en)

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