JP2001103540A - Position location system, central station for position location device and mobile station for the position location device - Google Patents
Position location system, central station for position location device and mobile station for the position location deviceInfo
- Publication number
- JP2001103540A JP2001103540A JP27762699A JP27762699A JP2001103540A JP 2001103540 A JP2001103540 A JP 2001103540A JP 27762699 A JP27762699 A JP 27762699A JP 27762699 A JP27762699 A JP 27762699A JP 2001103540 A JP2001103540 A JP 2001103540A
- Authority
- JP
- Japan
- Prior art keywords
- mobile station
- station
- position locating
- synchronous
- base station
- 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.)
- Pending
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は移動体通信に関し、
移動局の位置を標定することを目的とするシステムを提
供する。とくに、携帯端末のセル構成を変えることな
く、都市環境において高精度な位置標定サービスを行う
場合の改良に関する。TECHNICAL FIELD The present invention relates to mobile communications,
A system for locating a mobile station is provided. In particular, the present invention relates to an improvement in a case where a high-accuracy location service is performed in an urban environment without changing a cell configuration of a mobile terminal.
【０００２】[0002]
【従来の技術】従来の技術としては、例えば特開平１１
−２１５５４３号公報に開示されたものが知られてい
る。セルラ基地局はセル内部にあるスペクトラム拡散信
号をアレイアンテナで受信する。その受信された信号は
個々に設けられた受信装置で逆拡散され、端末（移動
局）毎の復調信号が得られる。ＰＤＡ(Power Delay Ang
le)推定回路は、複数の復調信号をデジタル信号に変換
し、多重伝搬環境の伝搬パラメータ（到来方位、遅延時
間、相対電力）を推定する。位置標定回路はこの内、最
短の遅延時間を有する到来波を直接波として携帯端末の
位置を標定する。この標定は端末毎に実施される。標定
結果は送信装置で多重化され送信アンテナから各端末に
送信される。2. Description of the Related Art As a prior art, for example,
The one disclosed in JP-A-215543 is known. The cellular base station receives a spread spectrum signal inside the cell with an array antenna. The received signals are despread by receiving devices provided individually to obtain demodulated signals for each terminal (mobile station). PDA (Power Delay Ang
le) The estimating circuit converts a plurality of demodulated signals into digital signals, and estimates propagation parameters (arrival direction, delay time, relative power) in a multiplex propagation environment. The position locating circuit locates the position of the portable terminal using the incoming wave having the shortest delay time as a direct wave. This orientation is performed for each terminal. The locating result is multiplexed by the transmitting device and transmitted from the transmitting antenna to each terminal.
【０００３】[0003]
【発明が解決しようとする課題】従来技術は、基本的に
は移動局で送信した電波を基地局で受信することによっ
て移動局の位置を標定するシステムであった。そのため
移動局の位置を標定するためには移動局で送信を実施す
る必要があった。また、測定精度を向上させるために
は、より長時間の送信をする必要が生じる。しかしなが
ら、移動局は電池で駆動されている場合がほとんどであ
り、消費電力等の観点から常時移動局が送信をすること
は困難であるという課題があった。The prior art is basically a system for locating a mobile station by receiving a radio wave transmitted from the mobile station at a base station. Therefore, in order to determine the position of the mobile station, it was necessary to perform transmission at the mobile station. Further, in order to improve the measurement accuracy, it is necessary to perform transmission for a longer time. However, the mobile station is almost always driven by a battery, and there is a problem that it is difficult for the mobile station to constantly transmit from the viewpoint of power consumption and the like.
【０００４】本発明は上述する課題を解決するもので、
移動局の電力消費を少なく抑えながら、移動局の位置を
高精度で標定できる位置標定システム、並びに位置評定
装置用の集中局、位置評定装置用の移動局を提供するこ
とを目的とする。The present invention solves the above-mentioned problems, and
An object of the present invention is to provide a position locating system capable of locating a position of a mobile station with high accuracy while suppressing power consumption of the mobile station, and a centralized station for a position locating device and a mobile station for a position locating device.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決する本発
明の位置標定システムは、図１に示すように、航法的な
位置が既知であって、同期位置標定信号を送信する複数
の基地局１０と、該複数の基地局１０から送信される該
同期位置標定信号を受信する受信回路５２と、該同期位
置標定信号の到着時間の相対差を測定する伝搬遅延時間
測定部５４と、伝搬遅延時間測定部５４で測定した到達
時間の相対差を送信する送信回路５６とを備える移動局
５０と、移動局５０から報告される該同期位置標定信号
の遅延情報と、基地局１０の航法的な位置情報とを用い
て、移動局５０の航法的な位置を演算する標定位置演算
部４２と、標定位置演算部４２で演算した移動局５０の
航法的な位置情報を網６０に対して報告する標定位置報
告部４４とを備える集中局４０を有する。As shown in FIG. 1, a position locating system according to the present invention, which solves the above-mentioned problems, comprises a plurality of base stations having a known navigational position and transmitting a synchronous position locating signal. 10, a receiving circuit 52 for receiving the synchronous position locating signals transmitted from the plurality of base stations 10, a propagation delay time measuring unit 54 for measuring a relative difference between arrival times of the synchronous position locating signals, A mobile station 50 including a transmission circuit 56 for transmitting a relative difference between arrival times measured by the time measuring unit 54; delay information of the synchronous position locating signal reported from the mobile station 50; Using the location information, the location location calculation unit 42 that calculates the navigation location of the mobile station 50, and reports the navigation location information of the mobile station 50 calculated by the location location calculation unit 42 to the network 60. And an orientation location reporting unit 44 With a central station 40.
【０００６】このように構成された位置標定システムに
おいては、移動局５０では、基地局１０から送信される
同期位置標定信号を受信し、各基地局１０からの同期位
置標定信号到達時間の差の報告を集中局４０に送信する
ので、移動局５０が同期位置標定信号を各基地局１０に
送信する場合に比較して、移動局５０の送信時間を大幅
に減らすことが可能である。集中局４０は、移動局５０
の航法的な位置情報を報告することで、移動局５０の航
法的な位置情報を必要とする顧客に対して位置情報提供
サービスが容易に行なえる。In the position locating system configured as described above, the mobile station 50 receives the synchronous position locating signal transmitted from the base station 10, and calculates the difference between the arrival times of the synchronous position locating signals from the respective base stations 10. Since the report is transmitted to the centralized station 40, the transmission time of the mobile station 50 can be significantly reduced as compared with the case where the mobile station 50 transmits the synchronous position locating signal to each base station 10. The central station 40 is a mobile station 50
By reporting the navigational position information of the mobile station 50, the position information providing service can be easily provided to the customer who needs the navigational position information of the mobile station 50.
【０００７】上記課題を解決する本発明の位置標定装置
用の集中局４０は、複数の基地局１０から送信される同
期位置標定信号を移動局５０にて受信し、移動局５０に
より各基地局１０からの該同期位置標定信号の到着時間
の相対差を測定し、移動局５０の標定された位置を網６
０又は移動局５０に報告するものにおいて、移動局５０
から報告される基地局１０からの前記同期位置標定信号
の遅延情報と、基地局１０の航法的な位置情報とを用い
て、移動局５０の航法的な位置を演算する標定位置演算
部４２と、標定位置演算部４２で演算した移動局５０の
航法的な位置情報を網６０又は移動局５０に対して報告
する標定位置報告部４４とを備えている。A centralized station 40 for a position locating apparatus according to the present invention, which solves the above-mentioned problems, receives a synchronous position locating signal transmitted from a plurality of base stations 10 at a mobile station 50, and the mobile station 50 controls each base station. 10 to determine the relative position of the arrival time of the synchronous position locating signal from
0 or reporting to the mobile station 50, the mobile station 50
A positioning position calculating unit 42 that calculates the navigational position of the mobile station 50 by using the delay information of the synchronous position locating signal from the base station 10 and the navigational position information of the base station 10. And a location reporting unit 44 for reporting the navigational position information of the mobile station 50 calculated by the location calculation unit 42 to the network 60 or the mobile station 50.
【０００８】上記課題を解決する本発明の位置評定装置
用の移動局５０は、複数の基地局１０から送信される同
期位置標定信号を受信する受信回路５２と、該同期位置
標定信号の到着時間の相対差を測定する伝搬遅延時間測
定部５４と、伝搬遅延時間測定部５４で測定した到達時
間の相対差を位置標定装置用の集中局４０に送信する送
信回路５６とを備えている。そして、位置標定装置用の
集中局４０は、移動局５０から報告される基地局１０か
らの前記同期位置標定信号の遅延情報と、基地局１０の
航法的な位置情報とを用いて、移動局５０の航法的な位
置を演算し、移動局５０の航法的な位置情報を報告する
ものである。A mobile station 50 for a position estimating apparatus according to the present invention which solves the above-mentioned problems comprises a receiving circuit 52 for receiving synchronous position locating signals transmitted from a plurality of base stations 10, and an arrival time of the synchronous position locating signals. And a transmission circuit 56 for transmitting the relative difference between the arrival times measured by the propagation delay time measuring unit 54 to the centralized station 40 for the position locating device. Then, the centralized station 40 for the position locating device uses the delay information of the synchronous position locating signal from the base station 10 reported from the mobile station 50 and the navigational position information of the base station 10 to obtain the mobile station. The navigation position of the mobile station 50 is calculated, and the navigation position information of the mobile station 50 is reported.
【０００９】[0009]
【発明の実施の形態】以下、図面を用いて本発明の実施
の形態を説明する。図１は、本発明の一実施の形態を説
明する機能ブロック図である。図において、複数の基地
局１０は、航法的な位置が既知であって、同期位置標定
信号を送信するもので、例えばＰＤＣ、ＰＨＳ、ＩＭＴ
２０００等の携帯電話用基地局や自動車電話用基地局で
ある。ここで、同期位置標定信号は専用の信号であって
も良いが、例えばＣＤＭＡ−ＯＮＥシステムにおけるパ
イロット信号で充分代替可能である。即ち、同期位置標
定信号は基地局毎に区別して受信可能であるような、基
地局毎の送信時間の同期がとれた、無線通信時における
同期補足信号で代替することもできる。移動局５０は、
携帯端末電話機とも呼ばれるもので、該複数の基地局１
０から送信される同期位置標定信号を受信する受信回路
５２と、同期位置標定信号の到着時間の相対差を測定す
る伝搬遅延時間測定部５４と、伝搬遅延時間測定部５４
で測定した到達時間の相対差を送信する送信回路５６と
を備えている。集中局４０は、移動局５０から報告され
る同期位置標定信号の遅延情報と、基地局１０の航法的
な位置情報とを用いて、移動局５０の航法的な位置を演
算する標定位置演算部４２と、標定位置演算部４２で演
算した移動局５０の航法的な位置情報を網６０又は移動
局５０に対して報告する標定位置報告部４４とを備えて
いる。網６０では、各移動局５０の現在位置を必要とす
る者、例えばタクシーや車両の現在位置を把握したいタ
クシー運営業者や自動車運送業者、入居者が徘徊症であ
る場合に徘徊者の現在位置把握をしたい福祉施設に、移
動局５０の位置情報を提供する。移動局５０は、現在位
置を知りたい場合に用いる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram illustrating an embodiment of the present invention. In the figure, a plurality of base stations 10 have known navigational positions and transmit a synchronous position locating signal. For example, PDC, PHS, IMT
2000 and other mobile phone base stations and car phone base stations. Here, the synchronization position locating signal may be a dedicated signal, but can be sufficiently replaced with, for example, a pilot signal in a CDMA-ONE system. That is, the synchronization position locating signal can be replaced with a synchronization supplementary signal at the time of wireless communication in which the transmission time of each base station is synchronized such that the signal can be received separately for each base station. The mobile station 50
The plurality of base stations 1 are also called mobile terminal phones.
0, a receiver circuit 52 for receiving the synchronous position locating signal, a propagation delay time measuring unit 54 for measuring a relative difference between arrival times of the synchronous position locating signal, and a propagation delay time measuring unit 54.
And a transmission circuit 56 for transmitting the relative difference of the arrival times measured in the step (a). The centralized station 40 uses the delay information of the synchronous position locating signal reported from the mobile station 50 and the navigational position information of the base station 10 to calculate the navigational position of the mobile station 50. And a location reporting unit 44 for reporting the navigational position information of the mobile station 50 calculated by the location calculation unit 42 to the network 60 or the mobile station 50. In the network 60, a person who needs the current position of each mobile station 50, for example, a taxi operator or a car carrier who wants to know the current position of a taxi or a vehicle, or a current position of a wanderer when a resident has wandering disease The location information of the mobile station 50 is provided to a welfare facility that wants to do so. The mobile station 50 is used when the user wants to know the current position.
【００１０】図２は本発明の一実施の形態を説明する構
成ブロック図である。図において、３個の基地局Ａ１
０、基地局Ｂ２０、基地局Ｃ３０が集中局４０と接続さ
れている。アンテナ１１、２１、３１は、夫々基地局Ａ
１０、基地局Ｂ２０、基地局Ｃ３０に接続されている。
無線装置１２、２２、３２は、夫々基地局Ａ１０、基地
局Ｂ２０、基地局Ｃ３０に設けられている送受信器であ
る。集中局４０には各基地局の航法的位置情報（緯度、
経度、標高）のデータベースが設けられている。移動局
５０は、ここでは基地局Ｂ２０とリンクを有している
が、基地局Ｂ２０と隣接する基地局Ａ１０、基地局Ｃ３
０からの同期位置標定信号を受信している。FIG. 2 is a block diagram illustrating the configuration of an embodiment of the present invention. In the figure, three base stations A1
0, base station B20 and base station C30 are connected to centralized station 40. The antennas 11, 21 and 31 are respectively connected to the base station A
10, base station B20 and base station C30.
The wireless devices 12, 22, and 32 are transceivers provided in the base station A10, the base station B20, and the base station C30, respectively. The central station 40 has navigational position information (latitude,
(Longitude, altitude) database is provided. Here, the mobile station 50 has a link with the base station B20, but the base station A10 and the base station C3 adjacent to the base station B20.
The synchronization position locating signal from 0 has been received.
【００１１】このように構成された装置において、移動
局５０は時間的に同時に送信される基地局Ａ、基地局
Ｂ、基地局Ｃの同期位置標定信号の相対的な伝搬遅延を
測定し、その測定結果を基地局Ｂ経由で集中局４０に報
告する。また、それぞれの相対的な伝搬遅延の測定と同
様に、同期位置標定信号の信号強度の測定も実施して、
基地局Ｂ経由で集中局４０に信号強度の報告しても良
い。集中局４０においては移動局５０より報告された基
地局Ａ、基地局Ｂ、基地局Ｃからの伝搬遅延の測定値と
信号強度を用いて移動局５０の位置を標定する。標定し
た位置は、集中局４０から網６０に報知されると共に、
下り回線にて移動局５０にも標定した位置が報知され
る。In the device configured as above, the mobile station 50 measures the relative propagation delay of the synchronous position locating signals of the base stations A, B, and C transmitted simultaneously in time, and The measurement result is reported to the central station 40 via the base station B. In addition, as with the measurement of the relative propagation delays, the signal strength of the synchronous position locating signal is also measured,
The signal strength may be reported to the central station 40 via the base station B. In the centralized station 40, the position of the mobile station 50 is located using the measured values of the propagation delays from the base stations A, B, and C and the signal strength reported from the mobile station 50. The located position is notified from the central station 40 to the network 60,
The located position is also reported to the mobile station 50 on the downlink.
【００１２】図３は移動局における基地局Ａ，基地局
Ｂ、基地局Ｃからの同期位置標定信号の受信信号波形図
である。図３では基地局Ａの信号が一番早く移動機に到
着しているので、基地局Ａの信号を基準として遅延時間
の相対値を測定する。遅延時間の測定は、各基地局から
送信される同期ワードの先頭ビットなどを基準として測
定する。FIG. 3 is a reception signal waveform diagram of the synchronous position locating signals from the base stations A, B, and C in the mobile station. In FIG. 3, since the signal of the base station A arrives at the mobile device earliest, the relative value of the delay time is measured based on the signal of the base station A. The delay time is measured based on the first bit of the synchronization word transmitted from each base station.
【００１３】図４は、遅延時間の測定を用いた移動局の
位置標定の説明図である。伝搬遅延差が分かっている場
合は、伝搬遅延時間を測定した二つの基地局を中心とす
る双曲線上に存在することになる。３つ以上の基地局か
らの信号を受信している場合においては、複数の双曲線
の交点が移動局５０の所在する位置である。ここでは、
基地局Ａ基地局Ｂ間の遅延時間を表わす双曲線Ａ−Ｂ、
基地局Ａ基地局Ｃ間の遅延時間を表わす双曲線Ａ−Ｃ、
基地局Ｂ基地局Ｃ間の遅延時間を表わす双曲線Ｂ−Ｃの
交点が、移動局５０の所在する位置である。FIG. 4 is an explanatory diagram of position determination of a mobile station using measurement of delay time. If the propagation delay difference is known, it exists on a hyperbola centered on the two base stations whose propagation delay time was measured. When signals from three or more base stations are received, the intersections of the plurality of hyperbolas are positions where the mobile station 50 is located. here,
Hyperbolic AB representing a delay time between base station A and base station B,
A hyperbolic line AC representing a delay time between the base stations A and C,
The intersection of the hyperbolas BC representing the delay time between the base station B and the base station C is the position where the mobile station 50 is located.
【００１４】基地局のカバーエリアが広い堤合において
は地球が丸い効果を考慮しなければならないが、都市等
での狭いカバーエリアにおいてはユークリツド幾何的な
計算で必要とする位置標定精度が得られる。そこで、基
地局の設置してある地域においてｘ，ｙのユークリツド
座標系を設定する。そして基地局Ａ，Ｂ，Ｃの緯度経度
情報をｘ，ｙ座標系に変換して、基地局位置情報４４と
して集中局４０に記憶されている。 基地局Ａ→（ｘａ，ｙａ） 基地局Ｂ→（ｘｂ，ｙｂ） 基地局Ｃ→（ｘｃ，ｙｃ）The effect of the earth being round must be taken into account when the coverage area of the base station is wide, but in a narrow coverage area in a city or the like, the positioning accuracy required by the Euclidean geometric calculation can be obtained. . Therefore, an Euclidean coordinate system of x and y is set in the area where the base station is installed. The latitude and longitude information of the base stations A, B, and C is converted into an x, y coordinate system, and stored as base station position information 44 in the central station 40. Base station A → (xa, ya) Base station B → (xb, yb) Base station C → (xc, yc)
【００１５】次に、位置標定演算部４２は、電波の伝搬
速度ｃと、移動局５０で測定した基地局Ａと基地局Ｂの
時間差Ｔａｂ、移動局５０で測定した基地局Ｂと基地局
Ｃの時間差Ｔｂｃ、移動局５０で測定した基地局Ａと基
地局Ｃの時間差Ｔａｃとを用いて、移動局５０の標定位
置（ｘ，ｙ）を演算する。位置標定演算部４２の演算式
は、次のように成っている。Next, the position locating operation unit 42 calculates the radio wave propagation speed c, the time difference Tab between the base station A and the base station B measured by the mobile station 50, the base station B and the base station C measured by the mobile station 50. The location (x, y) of the mobile station 50 is calculated using the time difference Tbc of the base station A and the time difference Tac between the base station A and the base station C measured by the mobile station 50. The calculation formula of the position locating calculation unit 42 is as follows.
【数１】 (Equation 1)
【００１６】位置標定演算部４２は、式(1)、(2)、(3)
により移動局５０のユークリッド幾何平面上の位置
（ｘ，ｙ）を計算する。集中局４０では、移動局４０の
位置（ｘ，ｙ）として緯度経度の座標系に変換して、該
移動局４０に対して報知される。The position locating operation section 42 calculates the equations (1), (2), (3)
, The position (x, y) of the mobile station 50 on the Euclidean geometric plane is calculated. The centralized station 40 converts the position (x, y) of the mobile station 40 into a latitude / longitude coordinate system and notifies the mobile station 40 of the converted position.
【００１７】尚、上記実施例においては基地局の設置し
てある地域についてユークリッド幾何座標系ｘ，ｙに変
換して演算を行なう場合を示したが、本発明はこれに限
定されるものではなく、距離と方位角を用いた極座標系
でもよく、また双曲線座標系等の他の座標系を用いても
良い。In the above embodiment, the case where the calculation is performed by converting the area where the base station is installed into the Euclidean geometric coordinate system x, y is shown, but the present invention is not limited to this. , A polar coordinate system using a distance and an azimuth angle, or another coordinate system such as a hyperbolic coordinate system.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の位置標定
システムによれば、移動局では、基地局から送信される
同期位置標定信号を受信し、各基地局からの同期位置標
定信号到達時間の差の報告を集中局に送信するので、移
動局が同期位置標定信号を各基地局に送信する場合に比
較して、移動局の送信時間を大幅に減らすことが可能で
ある。集中局は、移動局の航法的な位置情報を網に対し
て報告することで、移動局の航法的な位置情報を必要と
する顧客に対して位置情報提供サービスが容易に行なえ
る。また、現存する基地局を用いている為、現在のセル
構成を変更することなく高精度の移動局の位置標定を実
施できるという効果も有る。As described above, according to the position locating system of the present invention, the mobile station receives the synchronous position locating signal transmitted from the base station and obtains the synchronous position locating signal arrival time from each base station. Since the report of the difference is transmitted to the centralized station, the transmission time of the mobile station can be significantly reduced as compared with the case where the mobile station transmits the synchronous position locating signal to each base station. By reporting the navigational location information of the mobile station to the network, the centralized station can easily provide a location information providing service to customers who need the navigational location information of the mobile station. In addition, since an existing base station is used, there is an effect that a highly accurate location of a mobile station can be performed without changing the current cell configuration.
【図１】 本発明の位置標定システムの機能ブロック図
である。FIG. 1 is a functional block diagram of a position locating system of the present invention.
【図２】 本発明の一実施の形態を説明する構成ブロッ
ク図である。FIG. 2 is a configuration block diagram illustrating an embodiment of the present invention.
【図３】 移動局における基地局Ａ，基地局Ｂ、基地局
Ｃからの同期位置標定信号の受信信号波形図である。FIG. 3 is a reception signal waveform diagram of a synchronous position locating signal from a base station A, a base station B, and a base station C in a mobile station.
【図４】 遅延時間の測定を用いた移動局の位置標定の
説明図である。FIG. 4 is an explanatory diagram of position determination of a mobile station using measurement of delay time.
１０ 基地局 ４０ 集中局 ４２ 標定位置演算部 ４４ 基地局位置情報 ５０ 移動局 ５２ 受信回路 ５４ 伝搬遅延時間測定部 ５６ 送信回路 ６０ 網 DESCRIPTION OF SYMBOLS 10 Base station 40 Centralized station 42 Orientation position calculating unit 44 Base station position information 50 Mobile station 52 Receiving circuit 54 Propagation delay time measuring unit 56 Transmission circuit 60 Network
Claims (6)
標定信号を送信する複数の基地局と、 該複数の基地局から送信される該同期位置標定信号を受
信する受信回路と、該同期位置標定信号の到着時間の相
対差を測定する伝搬遅延時間測定部と、該伝搬遅延時間
測定部で測定した到達時間の相対差を送信する送信回路
とを備える移動局と、 該移動局から報告される該同期位置標定信号の遅延情報
と、該基地局の航法的な位置情報とを用いて、該移動局
の航法的な位置を演算する標定位置演算部と、該標定位
置演算部で演算した該移動局の航法的な位置情報を報告
する標定位置報告部とを備える集中局と、 を有することを特徴とする位置標定システム。A plurality of base stations having a known navigational position and transmitting a synchronous position locating signal; a receiving circuit receiving the synchronous position locating signal transmitted from the plurality of base stations; A mobile station comprising: a propagation delay time measuring unit that measures a relative difference between arrival times of a synchronous position locating signal; and a transmission circuit that transmits a relative difference between arrival times measured by the propagation delay time measuring unit; and Using the reported delay information of the synchronous position locating signal and the navigation position information of the base station, a position locating operation unit for calculating the navigation position of the mobile station, and a position locating unit. A centralized station comprising: a location location reporting unit that reports the calculated navigational location information of the mobile station; and a location location system comprising:
定信号を移動局にて受信し、該移動局により各基地局か
らの該同期位置標定信号の到着時間の相対差を測定し、
該移動局の標定された位置を網又は移動局に報告する位
置標定装置用の集中局において、 前記移動局から報告される前記基地局からの前記同期位
置標定信号の遅延情報と、前記基地局の航法的な位置情
報とを用いて、前記移動局の航法的な位置を演算する標
定位置演算部と、 該標定位置演算部で演算した前記移動局の航法的な位置
情報を前記網又は前記移動局に対して報告する標定位置
報告部と、 を備えることを特徴とする位置標定装置用の集中局。2. A mobile station receives synchronous position locating signals transmitted from a plurality of base stations, and the mobile station measures a relative difference between arrival times of the synchronous position locating signals from each base station.
In a centralized station for a position locating device that reports the located position of the mobile station to a network or a mobile station, delay information of the synchronous position locating signal from the base station reported from the mobile station, and the base station An orientation position calculation unit that calculates the navigation position of the mobile station by using the navigation position information of the mobile station; and the navigation position information of the mobile station calculated by the orientation position calculation unit, using the network or the network. A centralized station for a position locating device, comprising: a position locating report unit for reporting to a mobile station.
定信号を受信する受信回路と、 該同期位置標定信号の到着時間の相対差を測定する伝搬
遅延時間測定部と、 該伝搬遅延時間測定部で測定した到達時間の相対差を位
置標定装置用の集中局に送信する送信回路と、 を備え、前記位置標定装置用の集中局は、前記移動局か
ら報告される前記基地局からの前記同期位置標定信号の
遅延情報と、前記基地局の航法的な位置情報とを用い
て、前記移動局の航法的な位置を演算し、前記移動局の
航法的な位置情報を報告することを特徴とする位置評定
装置用の移動局。3. A receiving circuit for receiving a synchronous position locating signal transmitted from a plurality of base stations, a propagation delay time measuring unit for measuring a relative difference between arrival times of the synchronous position locating signal, and a propagation delay time measuring unit. A transmitting circuit for transmitting the relative difference of the arrival times measured by the unit to the centralized station for the position locating device, wherein the centralized station for the position locating device is Using the delay information of the synchronous position locating signal and the navigational position information of the base station, calculate the navigational position of the mobile station, and report the navigational position information of the mobile station. A mobile station for a position estimator.
拡散された時間的に同期のとれた信号であることを特徴
とする請求項１、２、３に記載の位置標定システム、位
置標定装置用の集中局、位置標定装置用の移動局。4. A position locating system and a position locating apparatus according to claim 1, wherein said synchronous position locating signal is a signal which is spread spectrum and synchronized with time. Central station, mobile station for position locating device.
を特徴とする請求項１、２、３に記載の位置標定システ
ム、位置標定装置用の集中局、位置標定装置用の移動
局。5. The position locating system according to claim 1, wherein said base station is a cellular base station, a centralized station for a position locating device, and a mobile station for a position locating device.
位置情報は、緯度、経度、並びに高度であることを特徴
とする請求項１、２、３に記載の位置標定システム、位
置標定装置用の集中局、位置標定装置用の移動局。6. The position locating system and position locating device according to claim 1, wherein the navigational position information of the base station and the mobile station is latitude, longitude, and altitude. Concentration station, mobile station for position locating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27762699A JP2001103540A (en) | 1999-09-29 | 1999-09-29 | Position location system, central station for position location device and mobile station for the position location device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27762699A JP2001103540A (en) | 1999-09-29 | 1999-09-29 | Position location system, central station for position location device and mobile station for the position location device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001103540A true JP2001103540A (en) | 2001-04-13 |
Family
ID=17586058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27762699A Pending JP2001103540A (en) | 1999-09-29 | 1999-09-29 | Position location system, central station for position location device and mobile station for the position location device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001103540A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003035762A (en) * | 2001-07-19 | 2003-02-07 | Hitachi Ltd | Position measuring system and position measuring method |
| KR100447411B1 (en) * | 2001-12-26 | 2004-09-04 | 한국전자통신연구원 | Apparatus and method for locating a mobile tranceiver |
| JP2008294588A (en) * | 2007-05-22 | 2008-12-04 | Oki Electric Ind Co Ltd | Optical wireless fused communication system, transmitter-receiver for optical wireless fused communication system and communication method |
-
1999
- 1999-09-29 JP JP27762699A patent/JP2001103540A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003035762A (en) * | 2001-07-19 | 2003-02-07 | Hitachi Ltd | Position measuring system and position measuring method |
| KR100447411B1 (en) * | 2001-12-26 | 2004-09-04 | 한국전자통신연구원 | Apparatus and method for locating a mobile tranceiver |
| JP2008294588A (en) * | 2007-05-22 | 2008-12-04 | Oki Electric Ind Co Ltd | Optical wireless fused communication system, transmitter-receiver for optical wireless fused communication system and communication method |
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