JPH0693650B2 - Moving body position detection method - Google Patents
Moving body position detection methodInfo
- Publication number
- JPH0693650B2 JPH0693650B2 JP63195800A JP19580088A JPH0693650B2 JP H0693650 B2 JPH0693650 B2 JP H0693650B2 JP 63195800 A JP63195800 A JP 63195800A JP 19580088 A JP19580088 A JP 19580088A JP H0693650 B2 JPH0693650 B2 JP H0693650B2
- Authority
- JP
- Japan
- Prior art keywords
- base station
- mobile station
- mobile
- station
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0252—Radio frequency fingerprinting
- G01S5/02521—Radio frequency fingerprinting using a radio-map
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は移動体通信分野に利用される。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used in the field of mobile communication.
本発明は自動車電話方式等の移動体通信方式における移
動体位置検出方法に関し、特に、基地局送信波の移動局
における受信電界レベルと電界強度地図とを照合するこ
とにより、エリア内に存在する移動局の位置を検出する
ようにした移動体位置検出方法に関する。The present invention relates to a mobile body position detecting method in a mobile communication system such as a car telephone system, and in particular, by comparing a received electric field level in a mobile station of a transmission wave of a base station with an electric field strength map, a movement existing in an area is detected. The present invention relates to a moving body position detecting method for detecting the position of a station.
自動車電話方式等、複数の無線ゾーンで全体のエリアを
構成する移動体通信方式では、広い範囲を動き回る移動
局の現在位置を知り、移動局と固定網等との間で回線を
接続する必要がある。以下にその仕組みを自動車電話方
式を例にして説明する。In a mobile communication system such as a car phone system that configures the entire area with multiple wireless zones, it is necessary to know the current position of a mobile station that moves around a wide range and to connect a line between the mobile station and a fixed network. is there. The mechanism will be described below by taking the car telephone system as an example.
（方式構成） 自動車電話方式の無線区間は、第19図に示すように、移
動局10、基地局20および移動通信制御局40から構成され
る。基地局20は移動局10との間の無線信号の授受を担当
する。移動通信制御局40は、複数の基地局20を制御する
とともに、固定網とのインタフェースを受け持つ。(System Configuration) As shown in FIG. 19, the mobile phone system wireless section is composed of a mobile station 10, a base station 20, and a mobile communication control station 40. The base station 20 is in charge of exchanging wireless signals with the mobile station 10. The mobile communication control station 40 controls a plurality of base stations 20 and also serves as an interface with a fixed network.
（ゾーン構成） 大容量で全国規模の広域サービスを行う自動車電話方式
では、移動局10の送信出力の制限、周波数の有効利用等
の理由から、第20図に示すように、サービスエリアを複
数の無線ゾーン30に分割し、各無線ゾーン30にそれぞれ
基地局20を設置し、干渉妨害の発生しない基地局間で同
一周波数を繰り返して使用している。(Zone configuration) In the car telephone system that provides a large-capacity wide-area service on a nationwide scale, there are multiple service areas, as shown in Fig. 20, due to reasons such as the limitation of the transmission output of the mobile station 10 and the effective use of frequencies. It is divided into wireless zones 30 and base stations 20 are installed in the respective wireless zones 30, and the same frequency is repeatedly used between the base stations in which interference does not occur.
移動局がサービスエリアの何処に居ても着信サービスを
効率良く行うために、自動車電話方式ではサービスエリ
アを複数の地域に分割し、この地域を移動局の位置識別
単位（位置登録エリア、一斉呼出しエリアとも呼ぶ）と
して、各移動局の居場所を交換機に登録しておき、被呼
移動局の居る地域のみで呼び出しを行う方式を採用して
いる。位置登録エリアは通常、後述する制御ゾーンと一
致している。In order to efficiently perform incoming call service regardless of where the mobile station is located, the mobile phone system divides the service area into multiple areas, and this area is divided into location identification units (location registration area, simultaneous paging) of the mobile station. As the area), the location of each mobile station is registered in the exchange, and a call is made only in the area where the called mobile station is. The location registration area usually coincides with the control zone described later.
（無線チャネル構成） 移動局は複数の無線チャネルを共通に使用し、呼の都度
特定の無線チャネルを選択する。第20図に示すように、
無線チャネルは通話のために用いられる通話チャネル14
1と、通話チャネル141を加入者からの通話要求に応じて
適宜割り当てる制御に用いる制御チャネルとで構成され
ている。制御チャネルは、移動局10への着呼接続および
制御情報の一斉報知に用いる着信制御チャネル142と、
移動局10からの発呼接続および移動局10の状態の報告お
よび登録に用いる発信制御チャネル143とで構成され
る。(Radio Channel Configuration) The mobile station commonly uses a plurality of radio channels and selects a specific radio channel each time a call is made. As shown in Figure 20,
The radio channel is the call channel used for the call 14
1 and a control channel used for control of appropriately allocating the call channel 141 according to a call request from a subscriber. The control channel is an incoming call control channel 142 used for incoming call connection to the mobile station 10 and broadcast of control information,
It consists of a call connection from the mobile station 10 and a call control channel 143 used for reporting and registration of the status of the mobile station 10.
制御チャネルの配置方法として、 複数の無線ゾーンを一つの単位すなわち制御ゾーン
として配置する。すなわち、各制御ゾーンには複数の無
線ゾーンが存在し、各無線ゾーンには同数および同一周
波数の着信制御チャネルおよび発信制御チャネルを配置
する方法、 着信制御チャネルについては複数の無線ゾーンを一
つの単位（制御ゾーン）とし、発信制御チャネルについ
ては無線ゾーンごとに配置する。すなわち、着信制御チ
ャネルについてはの場合と同様であるが、発信制御チ
ャネルについては、各無線ゾーンの制御トラヒックに応
じた制御チャネルを配置する方法 等がある。As a control channel arrangement method, a plurality of wireless zones are arranged as one unit, that is, a control zone. That is, each control zone has multiple wireless zones, and each wireless zone has the same number and the same frequency of incoming control channels and outgoing control channels. For incoming control channels, multiple wireless zones are used as a unit. (Control zone), and the transmission control channel is arranged for each wireless zone. That is, although the same is true for the incoming control channel, there is a method for arranging the outgoing control channel according to the control traffic of each wireless zone.
およびにおける制御信号を送受信方式を以下に示
す。The transmission / reception method of the control signals in and is shown below.
の場合 基地局から移動局への制御信号については、発／着信制
御チャネルとも制御ゾーン内の全基地局から同時に信号
が送信される。この方式を「複局同時送信方式」と呼ん
でいる。In the case of the control signal from the base station to the mobile station, the signal is simultaneously transmitted from all the base stations in the control zone on both the outgoing / incoming control channels. This method is called "multi-station simultaneous transmission method".
の場合 発信制御チャネルの基地局から移動局への制御信号につ
いてはの場合と基本的に同じであるが、着信制御チャ
ネルの基地局から移動局への制御信号150は第21図に示
すように、制御ゾーン内の全基地局から同時に送信され
る信号（図中、斜線を施した部分）と、各無線ゾーンか
ら個別に順番に送信される信号とがあり、これらを基地
局より常時送信している。この方式を「複局同時／順次
送信方式」と呼んでいる。第21図において、151は制御
ゾーン内の全無線ゾーンに共通な制御情報を流す共通情
報信号、152は移動局への着信制御情報を流す着信情報
信号、153は各無線ゾーンに固有の情報を流す基地局情
報信号である。共通情報信号151と着信制御情報信号152
とは制御ゾーン内の全基地局が一斉に同時に送信する
が、基地局情報信号153は各基地局が順番に送信する。
基地局情報信号153には、基地局の識別番号等が含まれ
る。In the case of, the control signal from the base station of the outgoing control channel to the mobile station is basically the same as that of, but the control signal 150 from the base station of the incoming control channel to the mobile station is as shown in FIG. , There is a signal transmitted from all base stations in the control zone at the same time (hatched portion in the figure) and a signal transmitted in order from each wireless zone individually. These signals are always transmitted from the base station. ing. This method is called "multi-station simultaneous / sequential transmission method". In FIG. 21, reference numeral 151 is a common information signal for transmitting control information common to all wireless zones in the control zone, 152 is an incoming information signal for transmitting incoming control information to the mobile station, and 153 is information unique to each wireless zone. This is a base station information signal to be sent. Common information signal 151 and incoming call control information signal 152
Is transmitted simultaneously by all the base stations in the control zone, but the base station information signal 153 is transmitted by each base station in order.
The base station information signal 153 includes a base station identification number and the like.
（位置登録） 動き回る移動局に対する発呼または着呼の接続のために
は移動局の現在位置の検出が必要であり、一斉呼出しエ
リアの決定のための位置検出とその登録を含めて位置登
録と呼ぶ。(Location registration) It is necessary to detect the current location of the mobile station in order to connect to a moving mobile station to make a call or receive a call, and to perform location registration including location detection and its registration for determining the paging area. Call.
移動局は全国の制御ゾーンで使用されている着信制御チ
ャネル番号（周波数に対応）を記憶しており、待ち受け
中にはこれらのチャネルの中から最も受信レベルの高い
着信制御チャネルを選択受信し、そこに含まれている位
置情報信号（制御ゾーン識別番号）により自身の在圈す
る制御ゾーンを識別する。移動局が位置登録単位（すな
わち制御ゾーン）を移行して着信制御チャネルを切り替
えたときに、切り替え前の識別番号と切り替え後の識別
番号が違っておれば、発信制御チャネルの上り回線で位
置登録信号を無線基地局へ送信し、位置登録を行う。The mobile station stores the incoming control channel number (corresponding to the frequency) used in the control zones nationwide, and during standby, it selectively receives the incoming control channel with the highest reception level from these channels, The position information signal (control zone identification number) contained therein identifies the control zone in which it is located. When the mobile station moves the location registration unit (that is, control zone) and switches the incoming control channel, if the identification number before switching and the identification number after switching are different, location registration is performed on the uplink of the outgoing control channel. The signal is transmitted to the wireless base station to perform location registration.
（移動局在圈無線ゾーンの決定） 移動局への着呼あるいは移動局からの発呼時に、移動局
に通話チャネルを割り当てるためには、移動局の在圈無
線ゾーンを判別する必要がある。(Determination of Local Mobile Radio Zone) When a mobile station receives an incoming call or a mobile station makes a call, it is necessary to determine the mobile radio zone of the mobile station in order to allocate a call channel to the mobile station.
「複局同時送信方式」を採用している自動車電話方式で
は、移動局の着呼応答信号あるいは移動局からの発呼信
号の、基地局における受信レベルを比較することによ
り、移動局在圈無線ゾーンの決定を行っている。In the mobile phone system that employs the "multi-station simultaneous transmission system", the mobile local radio system is compared by comparing the reception level at the base station of the incoming call response signal of the mobile station or the outgoing signal from the mobile station. Making zone decisions.
一方、「複局同時／順次送信方式」を採用している自動
車電話方式では、着信制御チャネルの基地局から移動局
への制御信号に含まれている基地局情報信号の受信レベ
ルを移動局で比較し、最も高く受かる基地局情報信号を
送信している無線基地局のゾーンに自分が在圈している
と移動局が判断することにより、移動局在圈無線ゾーン
の決定を行っている。On the other hand, in the car telephone system that adopts the "multi-station simultaneous / sequential transmission system", the reception level of the base station information signal included in the control signal from the base station of the incoming control channel to the mobile station is received by the mobile station. In comparison, the mobile station determines the mobile localized radio zone by determining that the mobile station is in the zone of the radio base station transmitting the highest received base station information signal.
以上のようにして自動車電話方式では移動局と固定網と
の間に回線を接続するために、基地局側では制御ゾーン
単位に常に移動局の位置が登録されており、移動局の発
着呼時には、移動局に通話チャネルを割り当てるために
移動局の在圈無線ゾーンまで識別している。As described above, in the car telephone system, since the line is connected between the mobile station and the fixed network, the position of the mobile station is always registered in control zone units on the base station side. , The mobile station's existing wireless zone is identified in order to allocate a communication channel to the mobile station.
しかし、移動局所在位置の把握が無線ゾーン単位である
ため、位置の識別精度が半径数km〜10数km（自動車電話
方式における無線ゾーンは3km〜15km程度）と大雑把で
ある欠点があった。また、移動局の在圈無線ゾーンは自
動車電話方式の無線区間でしか判らないため、移動側加
入者自身あるいは固定側加入者自身が移動局の在圈ゾー
ンすなわち移動局の所在位置を知ることは不可能である
欠点があった。However, since the movement local position is grasped in units of wireless zones, there is a drawback that the position identification accuracy is a radius of several kilometers to several tens of kilometers (the wireless zone in the car telephone system is about 3 km to 15 km). Also, since the mobile station's in-use wireless zone can be known only in the wireless section of the car telephone system, it is not possible for the mobile subscriber or the fixed subscriber to know the mobile station's in-zone zone, that is, the location of the mobile station. There was a drawback that was impossible.
さらに、近年、社会の高度情報化とそれを支える道路交
通網の発達により、人と物の移動が活発化しているが、
道路混雑が日常化し、移動範囲も広域化しているため、
人や車のスムーズな移動の必要性が高まっている。この
ため、サインポストから無線で位置情報を流し、移動体
の位置を常に把握して車の運行を効率化することを目的
としたAVMシステム（Automatic Vehicle Monitoring Sy
stem）や、衛星を使って移動体の位置検出を行うGPS（G
lobal Positioning System）等の開発も進められてい
る。これらのシステムでは、位置検出の精度が数十メー
トルと比較的高いが、移動体側の端末以外にサインポス
トの設置あるいは衛星の打ち上げ等の設備投資が必要で
あるという欠点があった。Furthermore, in recent years, the movement of people and goods has become active due to the sophistication of society and the development of the road traffic network that supports it.
Road congestion has become a daily routine and the range of movement has become wider,
The need for smooth movement of people and cars is increasing. Therefore, an AVM system (Automatic Vehicle Monitoring System) that aims to streamline position information wirelessly from a sign post to constantly grasp the position of a moving body and improve the efficiency of vehicle operation
stem) and GPS (G
Lobal Positioning System) is being developed. These systems have relatively high position detection accuracy of several tens of meters, but have a drawback in that equipment investment such as installation of a sign post or launch of a satellite is required in addition to the mobile terminal.
本発明の目的は、前記欠点を除去することにより、大き
な設備投資を必要とせずに、移動通信方式のエリア内に
存在する移動体の位置を無線ゾーン単位よりも高精度に
検出でき、さらに移動体あるいはその通信相手方におい
ても移動体の位置を検出できる移動体検出方法を提供す
ることにある。The object of the present invention is to eliminate the above-mentioned drawbacks and to detect the position of a moving object existing in the area of the mobile communication system with higher accuracy than the wireless zone unit without requiring a large capital investment, and to move further. It is an object of the present invention to provide a mobile body detection method capable of detecting the position of a mobile body in the body or its communication partner.
本発明は、基地局と移動体との間で電波による通信を行
う移動体通信方式における移動体位置検出方法におい
て、複数の前記基地局からの電波を前記移動体でそれぞ
れ受信し、あらかじめ求めておいた各基地局からの受信
電界レベルの等電界曲線を用いて各受信レベルに対応す
る前記移動体の存在し得る範囲を求め、各範囲の重なり
から前記移動体の存在位置を検出することを特徴とす
る。The present invention, in a mobile body position detection method in a mobile communication system for performing communication by radio waves between a base station and a mobile body, receives radio waves from a plurality of the base stations respectively by the mobile body, and obtains in advance. Using the isoelectric field curve of the received electric field level from each base station, the range in which the moving body can exist corresponding to each receiving level is obtained, and the existence position of the moving body is detected from the overlap of each range. Characterize.
以下、本発明の原理について説明する。 The principle of the present invention will be described below.
基地局から送信された電波は基地局から遠ざかるにつれ
て弱くなる。従って、移動局で受信される電波の強さす
なわち受信電界レベルが判れば、基地局からどの程度離
れた位置に移動局が存在しているかは大体推定できる。
基地局の周囲の地形は一様ではなく、樹木や建物等種々
の地物が存在するため、移動局受信電波の等電界線は一
般に基地局を中心とする同心円とはならないが、何らか
の方法により等電界線が描ければ、移動局は受信電界レ
ベルに相当する等電界線上の何処かに存在することにな
る。The radio wave transmitted from the base station becomes weaker as the distance from the base station increases. Therefore, if the strength of the radio wave received by the mobile station, that is, the received electric field level is known, it can be roughly estimated how far the mobile station is from the base station.
Since the topography around the base station is not uniform and there are various features such as trees and buildings, the isoelectric field lines of the radio waves received by the mobile station are not generally concentric circles centered on the base station, but by some method If the contour lines are drawn, the mobile station is located somewhere on the contour lines corresponding to the received field level.
一つの基地局の電波を受信するだけでは方角が判らない
ため、移動局の位置は基地局周囲の等電界線上の何処か
までしかわからないが、第１図に示すように、三つの基
地局B1（21）、B2（22）およびB3（23）の無線ゾーンが
重なっており、移動局（10）でそれぞれの基地局電波の
受信電界レベルを検出できれば、各基地局電波の等電界
線の交点より移動局（10）の位置を求めることができ
る。Since the direction cannot be known only by receiving the radio wave from one base station, the position of the mobile station can be known only somewhere on the contour line around the base station, but as shown in FIG. If the radio zones of 1 (21), B 2 (22), and B 3 (23) overlap, and the mobile station (10) can detect the received electric field level of each base station radio wave, the equal electric field of each base station radio wave can be detected. The position of the mobile station (10) can be obtained from the intersection of the lines.
通常、正確な等電界線を木目細かく求めることはかなり
困難を伴うため、検出できる移動局10の位置はポイント
ではなく或る拡がりを持ったものとなる。すなわち第２
図の電界強度地図に示すように、三つの基地局B1（2
1）、B2（22）およびB3（23）の送信電波の移動局（1
0）における受信電界レベルの等電界線が図のように求
まっているとき、仮に移動局（10）における基地局B
1（21）の受信電界レベルが52dBμV/m、基地局B2（22）
のレベルが45dBμV/mおよび基地局B3（23）のレベルが4
1dBμV/mであれば、移動局（10）は図の太枠で囲った部
分の何処かに存在することになる。移動局（10）におい
て受信できる基地局の数が増えれば、移動局（10）の存
在範囲をもっと絞ることも可能であり、正確な等電界線
を木目細かく描いた電界強度地図が得られれば、移動局
（10）の位置を更に精度良く検出することができる。Usually, it is quite difficult to obtain accurate equi-electric field lines in detail, so that the position of the mobile station 10 that can be detected is not a point but a certain spread. Ie the second
As shown in the electric field strength map in the figure, three base stations B 1 (2
1), B 2 (22) and B 3 (23) transmit radio waves from mobile stations (1
When the contour lines of the received electric field level in 0) are obtained as shown in the figure, it is assumed that the base station B in the mobile station (10)
Received electric field level of 1 (21) is 52 dBμV / m, base station B 2 (22)
Has a level of 45 dBμV / m and base station B 3 (23) has a level of 4
If it is 1 dBμV / m, the mobile station (10) will exist somewhere in the part surrounded by the thick frame in the figure. If the number of base stations that can be received by the mobile station (10) increases, it is possible to further narrow the range of existence of the mobile station (10), and if an accurate electric field strength map is obtained in a fine grained manner. , The position of the mobile station (10) can be detected more accurately.
前記の考え方を基に本発明は、 複数の送信点からの電波を移動体でそれぞれ識別し
て受信する。According to the present invention based on the above concept, the mobile body identifies and receives radio waves from a plurality of transmission points.
送信点からの電波の移動体における受信電界レベル
の等電界曲線を描いた電界強度地図を各送信点ごとに、
あらかじめ求めておく。For each transmission point, an electric field strength map that depicts an isoelectric field curve of the received electric field level in the moving body of the radio wave from the transmission point,
Get in advance.
移動体における受信電界レベルと電界強度地図の照
合を複数の送信点について行い、個々の電界強度地図上
に求まる移動体の存在し得る範囲の重ね合わせより、移
動体の位置を検出する。電界強度地図は情報処理装置の
メモリ領域に格納し、処理をプログラム制御により実行
できる。The received electric field level in the moving body and the electric field strength map are collated at a plurality of transmission points, and the position of the moving body is detected by superimposing the range where the moving body can exist on each electric field strength map. The electric field strength map is stored in the memory area of the information processing device, and the processing can be executed by program control.
複数の送信点からの電波を移動体でそれぞれ識別し
て受信する方法として、複数の無線ゾーンでサービスエ
リアを構成し、各無線ゾーンにそれぞれ無線基地局を設
置し、基地局から移動局への制御信号を各基地局から個
別に順次基地局番号とともに送信する移動通信方式にお
いて、移動局で基地局から移動局への制御信号の中から
基地局番号とその基地局が送信した制御信号の受信電界
レベルを検出する。あるいは、基地局から移動局への制
御信号が各基地局から個別に順次基地局番号とともに送
信されていない場合に、移動局で受信する無線チャネル
を順次切り替えて、無線チャネルごとの受信電界レベル
を検出するとともに、無線チャネルとその無線チャネル
の信号を送信している基地局を対応付けることにより、
移動局における基地局ごとの受信電界レベルを検出す
る。As a method of identifying and receiving radio waves from multiple transmission points by a mobile unit, a service area is configured with multiple wireless zones, and wireless base stations are installed in each wireless zone. In a mobile communication system in which a control signal is transmitted from each base station individually and sequentially with a base station number, the mobile station receives the base station number and the control signal transmitted by that base station from among the control signals from the base station to the mobile station. Detect the electric field level. Alternatively, when the control signal from the base station to the mobile station is not sequentially transmitted from each base station together with the base station number, the radio channels received by the mobile station are sequentially switched, and the reception electric field level for each radio channel is changed. By detecting and associating the radio channel with the base station transmitting the signal of the radio channel,
The received electric field level of each base station in the mobile station is detected.
前記の移動通信方式において、基地局ごとの電界
強度地図を移動局または基地局あるいは移動局の通信相
手方に設置し、移動局で検出した基地局番号とその基準
局送信波の受信電界レベルから移動局での自局の位置を
検出するか、移動局で検出した基地局番号とその基地局
送信波の受信電界レベルを通信回線を通して基地局ある
いは移動局の通信相手方に転送し、転送先で移動局にお
ける基地局ごとの受信電界レベルと電界強度地図を照合
して移動局の位置を検出する。In the above mobile communication system, a field strength map for each base station is installed on the mobile station or the base station or the communication partner of the mobile station, and the mobile station is detected from the base station number detected by the mobile station and the received electric field level of the reference station transmitted wave. Or the position of its own station detected by the mobile station, or the base station number detected by the mobile station and the received electric field level of the transmitted wave from the base station are transferred to the base station or the communication partner of the mobile station through a communication line, and the transfer destination is the mobile station. The position of the mobile station is detected by comparing the received electric field level for each base station with the electric field strength map.
以下、本発明の実施例について図面を参照して説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第３図は本発明の第一実施例による移動通信システムを
示すブロック構成図である。FIG. 3 is a block diagram showing a mobile communication system according to the first embodiment of the present invention.
本第一実施例は、移動局10と、無線ゾーン31を有する基
地局B121と、無線ゾーン32を有する基地局B222と、無線
ゾーン33を有する基地局B323と、その他の破線で示す複
数の無線ゾーンと、これらの制御を行う移動通信制御局
40と、この移動通信制御局40と第一の通信回線51により
接続された位置情報送受信装置61および電界強度地図90
を有する位置情報センタ60と、この位置情報センタ60と
それぞれ第二の通信回線52により接続され位置情報受信
装置71を有する複数の位置情報ユーザ70とを含んでい
る。The first embodiment is a mobile station 10, a base station B 1 21 having a wireless zone 31, a base station B 2 22 having a wireless zone 32, a base station B 3 23 having a wireless zone 33, and others. A plurality of wireless zones indicated by broken lines and a mobile communication control station that controls these
40, the position information transmitter / receiver 61 and the electric field strength map 90 connected to the mobile communication control station 40 by the first communication line 51.
And a plurality of position information users 70 each having a position information receiving device 71 connected to the position information center 60 by a second communication line 52.
そして、基地局B121の無線ゾーン31に移動局10が存在
し、無線ゾーン31には基地局B222の無縁ゾーン32と基地
局B323の無線ゾーン33等が重なっており、移動局10では
基地局B121、B222およびB323等の送信波が受信できる。
移動局10は、基地局B121、移動通信制御局40、第一の通
信回線50を介して位置情報センタ60に接続される。ま
た、電界強度地図90は第２図に示したものと同じ内容の
ものである。なお、第一の通信回線51は通常は固定電話
回線であるが、移動通信制御局40と第一の通信回線51と
のインタフェース条件を変えることにより、パケット通
信回線、ISDN回線、移動通信回線等であってもよい。第
二の通信回線52は第一の通信回線51と同一種類の回線で
あっても異なっていてもよく、第一の通信回線51同様種
々の通信回線が考えられる。Then, the mobile station 10 is present in the radio zone 31 of the base station B 1 21, and the radio zone 33 or the like unrelated zone 32 and the base station B 3 23 of the base station B 2 22 overlaps the radio zone 31, the mobile in the station 10 the base station B 1 21, B 2 22 and B 3 transmitted wave such as 23 can be received.
Mobile station 10, the base station B 1 21, the mobile communication control station 40, is connected to the position information center 60 via the first communication line 50. The electric field strength map 90 has the same content as that shown in FIG. The first communication line 51 is usually a fixed telephone line, but by changing the interface condition between the mobile communication control station 40 and the first communication line 51, a packet communication line, an ISDN line, a mobile communication line, etc. May be The second communication line 52 may be the same type of line as or different from the first communication line 51, and various communication lines like the first communication line 51 are conceivable.
各基地局B121、B222およびB323からは、第４図に示すよ
うな基地局番号81を含む基地局情報信号80が第５図
（ａ）〜（ｄ）に示すように各基地局B121、B222および
B323から個別に順次送信されており、移動局10では第６
図に示すような信号が受信される。From the base station B 1 21, B 2 22 and B 3 23, as a base station information signal 80 including a base station ID 81 as shown in Figure 4 is shown in FIG. 5 (a) ~ (d) Each base station B 1 21, B 2 22 and
It is transmitted from B 3 23 individually and sequentially.
A signal as shown is received.
第７図に移動局10の詳細構成図を示す。移動局10は、ア
ンテナ11、移動機12、電話機13、位置情報信号検出器1
4、信号配列送出器15、およびモデム16を含んでいる。FIG. 7 shows a detailed configuration diagram of the mobile station 10. The mobile station 10 includes an antenna 11, a mobile device 12, a telephone 13, and a position information signal detector 1
4. Includes signal array transmitter 15 and modem 16.
位置情報信号検出器14は、移動機12より基地局から移動
局10への基地局情報信号80の復調信号と検波出力とを受
信し、その中から基地局番号とその基地局が送信した基
地局情報信号の受信電界レベルを検出し、基地局番81と
受信電界レベルを信号配列送出器15へ送出する。信号配
列送出器15は移動局10の移動局番号と位置情報すなわち
基地局番号81と受信電界レベルをモデム16に送る。モデ
ム16は信号配列送出器15よりのデータ信号を変調して移
動機12へ送出する。The position information signal detector 14 receives the demodulated signal and the detection output of the base station information signal 80 from the base station to the mobile station 10 from the mobile device 12, and the base station number and the base transmitted by the base station from among them. The reception electric field level of the station information signal is detected, and the base station number 81 and the reception electric field level are sent to the signal array transmitter 15. The signal array transmitter 15 sends the mobile station number of the mobile station 10 and position information, that is, the base station number 81 and the received electric field level to the modem 16. The modem 16 modulates the data signal from the signal array transmitter 15 and sends it to the mobile unit 12.
位置情報センタ60から移動局10に位置情報送出の要求が
あったとき、あるいは移動局10から位置情報センタ60へ
位置情報を送出しようとするとき、移動局10で検出した
位置情報すなわち基地局B121、B222およびB323等の基地
局番号81と移動局10における受信電界レベルおよび移動
局10自身の移動局番号を、位置情報センタ60から移動局
10を呼び出すか、移動局10から位置情報センタ60を呼び
出すかして移動局10と位置情報センタ60との間に設定さ
れた第一の通信回線51を通して移動局10から位置情報セ
ンタ60へ送る。When the position information center 60 requests the mobile station 10 to send position information, or when the mobile station 10 tries to send position information to the position information center 60, the position information detected by the mobile station 10, that is, the base station B The base station number 81 such as 1, 21, B 2 22 and B 3 23, the received electric field level at the mobile station 10 and the mobile station number of the mobile station 10 itself are transferred from the location information center 60 to the mobile station.
10 or the location information center 60 is called from the mobile station 10 and sent from the mobile station 10 to the location information center 60 through the first communication line 51 set between the mobile station 10 and the location information center 60. .
位置情報センタ60では、移動局10から送られてきた移動
局番号と位置情報とを位置情報送受信装置61で受信し、
位置情報と電界強度地図90との照合を行って、移動局10
の位置を決定する。In the location information center 60, the location information transmitter / receiver 61 receives the mobile station number and location information sent from the mobile station 10,
By comparing the position information with the electric field strength map 90, the mobile station 10
Determine the position of.
最後に、位置情報センタ60は移動局10の位置情報を要求
している位置情報ユーザ70の位置情報受信装置71へ向け
て、移動局番号と移動局位置を位置情報送受信装置61か
ら第二の通信回線52を通して送出する。Finally, the location information center 60 directs the mobile station number and the mobile station location from the location information transmitting / receiving apparatus 61 to the second location information receiving apparatus 71 toward the location information receiving apparatus 71 of the location information user 70 requesting the location information of the mobile station 10. It is transmitted through the communication line 52.
ところで、第７図の移動局10の構成において、移動機12
は元来、制御信号および受信電界レベルの検出手段を持
っているので、移動機12のソフトウェアを変更すること
により、モデム16を除く前記と同様の手段を移動局10に
持たせることが可能である。この場合は位置情報信号検
出器14と信号配列送出器15とは不要となる。また、移動
局番号と位置情報を基地局側に送るのに制御チャネルを
用いるのであれば、モデム16も不要となる。By the way, in the configuration of the mobile station 10 shown in FIG.
Since it originally has means for detecting the control signal and the received electric field level, it is possible to give the mobile station 10 means similar to the above except for the modem 16 by changing the software of the mobile device 12. is there. In this case, the position information signal detector 14 and the signal array transmitter 15 are unnecessary. Further, if the control channel is used to send the mobile station number and position information to the base station side, the modem 16 is also unnecessary.
第８図は本発明の第二実施例による移動通信システムの
要部を示すブロック構成図、第９図はその移動局の詳細
を示すブロック構成図である。FIG. 8 is a block diagram showing a main part of a mobile communication system according to the second embodiment of the present invention, and FIG. 9 is a block diagram showing details of the mobile station.
本第二実施例は、第３図の第一実施例において、電界強
度地図90を位置情報センタ60から取り外し移動局10a内
に設けたもので、他は第一実施例と同様である。The second embodiment is the same as the first embodiment except that the electric field strength map 90 is removed from the position information center 60 and provided in the mobile station 10a in the first embodiment of FIG.
本第二実施例においては、移動局10aで位置検出して移
動局10a側でその結果を利用したり、移動局10aでの位置
検出結果を移動局番号とともに移動通信制御局40、位置
情報センタ60または位置情報ユーザ70に送る。In the second embodiment, the position is detected by the mobile station 10a and the result is used on the side of the mobile station 10a, or the position detection result of the mobile station 10a is stored together with the mobile station number in the mobile communication control station 40 and the position information center. 60 or location information sent to user 70.
第10図および第11図はそれぞれ本発明の第三実施例およ
び第四実施例による移動通信システムの要部を示すブロ
ック構成図である。FIG. 10 and FIG. 11 are block configuration diagrams showing the main parts of the mobile communication system according to the third embodiment and the fourth embodiment of the present invention, respectively.
本第三実施例および本第四実施例は、第３図の第一実施
例において、電界強度地図90を位置情報センタ60から取
り外し、それぞれ移動通信制御局40aおよび位置情報ユ
ーザ70aに設けたもので、他は第一実施例と同様であ
る。In the third and fourth embodiments, the electric field strength map 90 is removed from the location information center 60 in the first embodiment of FIG. 3 and is provided to the mobile communication control station 40a and the location information user 70a, respectively. The rest is the same as in the first embodiment.
本第三実施例および第四実施例においては、移動局10か
ら送られてきた位置情報を用いて、それぞれ移動通信制
御局40aおよび位置情報ユーザ70aで位置検出を行う。In the third and fourth embodiments, the position information sent from the mobile station 10 is used to detect the position by the mobile communication control station 40a and the position information user 70a, respectively.
第12図は本発明の第五実施例による移動通信システムを
示すブロック構成図、第13図はそのチャネルテーブルの
一例を示す説明図、および第14図はその移動局の詳細を
示すブロック構成図である。FIG. 12 is a block diagram showing a mobile communication system according to a fifth embodiment of the present invention, FIG. 13 is an explanatory diagram showing an example of its channel table, and FIG. 14 is a block diagram showing details of the mobile station. Is.
本第五実施例は、第３図の第一実施例において、位置情
報センタ60aとして電界強度地図90とともにチャネルテ
ーブル100を設け、それに対応して移動局10bとして受信
機17およびメモリ18を設けたものである。In the fifth embodiment, in the first embodiment of FIG. 3, the position information center 60a is provided with the electric field intensity map 90 together with the channel table 100, and correspondingly the mobile station 10b is provided with the receiver 17 and the memory 18. It is a thing.
第一実施例ないし第四実施例では、各基地局から基地局
番号を含む基地局情報信号が個別に順次送信されてい
て、移動局では基地局情報信号を受信するだけで基地局
ごとの受信レベルを検出できる場合の実施例を示した
が、本第五実施例は、基地局からそのような信号が送信
されていない場合にも移動局において基地局ごとの受信
レベルを識別して検出する方法を用いたもので、各基地
局B121、B222およびB323からは基地局番号を含む基地局
情報信号が個別に順次送信されていない。ここで、チャ
ネルテーブル100は第13図に示すように通話チャネルと
その通話チャネルを使用している基地局を対応付けたチ
ャネル番号101と基地局番号102とを含んでいる。In the first to fourth embodiments, the base station information signal including the base station number is individually and sequentially transmitted from each base station, and the mobile station only receives the base station information signal to receive each base station. Although the embodiment in which the level can be detected has been described, the fifth embodiment identifies and detects the reception level of each base station in the mobile station even when such a signal is not transmitted from the base station. the method which was used, the base station information signal including the base station ID from the base station B 1 21, B 2 22 and B 3 23 is not sequentially transmitted separately. Here, as shown in FIG. 13, the channel table 100 includes a channel number 101 and a base station number 102 in which a call channel and a base station using the call channel are associated with each other.
第12図において、移動局10bでは、待ち受け中に通話チ
ャネルを順次切り替えつつ、信号が受かる通話チャネル
のチャネル番号101とそのチャネルの移動局10bにおける
受信電界レベルをメモリ18に記憶しておく。In FIG. 12, the mobile station 10b stores the channel number 101 of the communication channel on which the signal is received and the received electric field level in the mobile station 10b of the channel while sequentially switching the communication channels during standby.
位置情報センタ60aから移動局10bに位置情報送出の要求
があったとき、あるいは移動局10bから移動局情報セン
タ60aへ位置情報を送出しようとするとき、移動局10bで
検出した位置情報すなわち通話チャネル番号101とその
チャネルの移動局10bにおける受信電界レベルおよび移
動局10b自身の移動局番号を、位置情報センタ60aが移動
局10bを呼び出すか、移動局10bから位置情報センタ60a
を呼び出すかして移動局10bと位置情報センタ60aの間に
設定された第一の通信回線51を通して移動局10bから位
置情報センタ60aへ送る。位置情報センタ60aでは、移動
局10bから送られてきた移動局番号と位置情報を位置情
報送受信装置61で受信し、位置情報の中の通話チャネル
番号101とチャネルテーブル100との照合を行って、通話
チャネル番号101からそのチャネルを使用している基地
局を識別する。このことによって、基地局とその基地局
送信波の移動局における受信電界レベルが明らかにな
る。When the position information center 60a requests the mobile station 10b to send position information or when the mobile station 10b tries to send position information to the mobile station information center 60a, the position information detected by the mobile station 10b The location information center 60a calls the mobile station 10b or the location 101 of the location information center 60a for the received electric field level in the mobile station 10b of the number 101 and the channel and the mobile station number of the mobile station 10b itself.
Or is sent from the mobile station 10b to the position information center 60a through the first communication line 51 set between the mobile station 10b and the position information center 60a. In the location information center 60a, the location information transmitting / receiving device 61 receives the mobile station number and location information sent from the mobile station 10b, and collates the call channel number 101 in the location information with the channel table 100, The base station using the channel is identified from the call channel number 101. By this, the received electric field level at the base station and the mobile station of the transmitted wave from the base station becomes clear.
次に、各基地局送信波の移動局10bにおける受信電界レ
ベルと電界強度地図90との照合を行って、移動局10bの
位置を決定する。最後に、位置情報センタ60aは移動局1
0bの位置情報を要求している位置情報ユーザ70の位置情
報受信装置71へ向けて、移動局番号と移動局位置を位置
情報送受信装置61から第二の通信回線52を通して送出す
る。Next, the received electric field level of each base station transmitted wave at the mobile station 10b is compared with the electric field strength map 90 to determine the position of the mobile station 10b. Finally, the location information center 60a is the mobile station 1
The mobile station number and the mobile station position are transmitted from the position information transmitting / receiving device 61 to the position information receiving device 71 of the position information user 70 requesting the position information of 0b through the second communication line 52.
本第五実施例における移動局10bは第14図に示すよう
に、アンテナ11、移動機12、電話機13、信号配列送出器
15、モデム16、受信機17およびメモリ18を含み、受信機
17は第12図の移動通信方式で使用している全通話チャネ
ルを受信できる手段を持ち、通話チャネルを順次チャネ
ルを順次切り替えながらそのチャネルの受信電界レベル
を検出し、通話チャネル番号101とその受信電界レベル
とを位置情報としてメモリ18に送出する。信号配列送信
器15は移動局10bから位置情報を送出する必要が生じた
とき、メモリ18から位置情報すなわち通話チャネル番号
101と受信電界レベルとを読み出して移動局番号ととも
にモデム16に送る。モデム16は信号配列送出器15よりの
データ信号を変調して移動機12へ送出する。As shown in FIG. 14, the mobile station 10b according to the fifth embodiment includes an antenna 11, a mobile device 12, a telephone set 13, and a signal array transmitter.
15, including a modem 16, a receiver 17 and a memory 18, a receiver
Reference numeral 17 has means for receiving all the call channels used in the mobile communication system shown in FIG. 12, detects the electric field level of the received call channel while sequentially switching the call channels, and detects the call channel number 101 and its reception. The electric field level is sent to the memory 18 as position information. When it becomes necessary for the mobile station 10b to transmit the position information from the signal array transmitter 15, the position information, that is, the call channel number, is stored in the memory 18 from the memory 18.
101 and the received electric field level are read out and sent to the modem 16 together with the mobile station number. The modem 16 modulates the data signal from the signal array transmitter 15 and sends it to the mobile unit 12.
第一実施例ないし第四実施例の場合と同様に、移動機12
は第12図の移動通信システムの全無線チャネルの受信手
段と受信電界レベルの検出手段とを持っているので、移
動機12のソフトウェアを変更することにより、モデム16
を除く前記と同様の手段を移動局10bに持たせることが
可能である。この場合は受信機17、メモリ18および信号
配列送出器15は不要となる。また、移動局番号と位置情
報を基地局側に送るのに制御チャネルを用いるのであれ
ば、モデム16も不要となる。ただし、移動機12は制御チ
ャネルと通話チャネルの信号を同時には受信できないの
で、移動機12への着呼を受けられるように制御チャネル
と通話チャネルを適宜切り替えながら通話チャネルの受
信電界レベルを検出する等の制御が必要となる。As in the case of the first to fourth embodiments, the mobile unit 12
Has a means for receiving all radio channels and a means for detecting a received electric field level of the mobile communication system shown in FIG.
It is possible to provide the mobile station 10b with the same means as described above except for. In this case, the receiver 17, the memory 18 and the signal array transmitter 15 are unnecessary. Further, if the control channel is used to send the mobile station number and position information to the base station side, the modem 16 is also unnecessary. However, since the mobile device 12 cannot receive the signals of the control channel and the communication channel at the same time, the reception electric field level of the communication channel is detected while appropriately switching the control channel and the communication channel so that the incoming call to the mobile device 12 can be received. Etc. control is required.
ところで、通話チャネル番号と基地局番号が一対一に対
応している移動通信システムでは、通話チャネル番号か
らそのチャネルの電波を送信している基地局を識別でき
るが、自動車電話のように通話チャネルを場所的に繰り
返し使用している移動通信システムでは、通話チャネル
番号だけからは基地局を特定できない。By the way, in a mobile communication system in which a call channel number and a base station number have a one-to-one correspondence, it is possible to identify the base station transmitting the radio wave of that channel from the call channel number, but the call channel can be changed like a car phone. In a mobile communication system that is repeatedly used locally, the base station cannot be identified only from the call channel number.
このような場合は、以下の方法により通話チャネルと基
地局との対応を付けることができる。すなわち、第12図
の構成において、移動局10bへの着呼または移動局10bか
らの発呼の際、基地局B121から移動局10bへの制御信号
中に第15図に示すようなチャネル指定信号110が送出さ
れる。移動局10bでは、このチャネル指定信号110に従っ
て無線チャネルを制御チャネルから指定の通話チャネル
に切り替える。移動局番号111は自局へのチャネル指定
信号であることを確認するのに必要であり、基地局番号
112は移動局10bが通話を終了するときに移動局10bから
基地局B121へ送信する終話信号あるいは基地局B121から
移動局10bへ送信する回線切断信号中にこの基地局番号1
12を入れ、同一周波数の無線チャネルを使用している他
無線ゾーンの通話チャネルに対する終話信号や回線切断
信号を同一周波干渉によって受信しても、自局の通話チ
ャネルに対する終話信号や回線切断信号と区別できるこ
とにより誤って回線を切断しないようにするため等に必
要である。In such a case, the communication channel and the base station can be associated with each other by the following method. That is, in the configuration of Figure 12, when the call from the incoming call or the mobile station 10b to the mobile station 10b, the channel as shown in FIG. 15 in the control signal from the base station B 1 21 to the mobile station 10b Designation signal 110 is transmitted. The mobile station 10b switches the radio channel from the control channel to the designated communication channel according to the channel designation signal 110. The mobile station number 111 is necessary to confirm that it is a channel designation signal for the local station, and the base station number
112 The base station number from the clearing signal or the base station B 1 21 to be transmitted from the mobile station 10b to the base station B 1 21 in line disconnection signal to be transmitted to the mobile station 10b when the mobile station 10b terminates the call 1
If 12 is entered and a call end signal or line disconnection signal for a call channel of another radio zone that uses the same frequency radio channel is received by the same frequency interference, a call end signal or line disconnection for the call channel of the own station is received. It is necessary to prevent the line from being accidentally disconnected because it can be distinguished from the signal.
第12図の構成においては、移動局10bで、第15図に示す
ように、チャネル指定信号110から基地局番号112を取り
出して、通話チャネルを順次切り替えながら受信した複
数の通話チャネル番号とそのチャネルの受信電界レベル
とともに基地局番号112を位置情報センタ60aへ送出す
る。位置情報センタ60aでは、第13図のチャネルテーブ
ル100の代わりに、第16図に示すようなテーブルすなわ
ち基地局B121の基地局番号121から基地局B121の無線ゾ
ーン31とゾーンが隣接する周辺基地局B222およびB323等
を選択できる基地局テーブル120と、第17図に示すよう
な基地局番号132と通話チャネル番号131を対応付けた基
地局チャネルテーブル130を持つ。位置情報センタ60aで
は、まず移動局10bから送られてきた基地局番号121と第
16図の基地局テーブル120とを照合することにより、移
動局10bが在圈している無線ゾーン31の基地局B121とそ
の周辺基地局B222、B323等を選択する。In the configuration of FIG. 12, in the mobile station 10b, as shown in FIG. 15, the base station number 112 is extracted from the channel designation signal 110, and a plurality of call channel numbers and the channels received while sequentially switching the call channels are received. The base station number 112 is transmitted to the position information center 60a together with the reception electric field level of In the position information center 60a, first of 13 view instead of channel table 100, the radio zone 31 and zone of the base station B 1 21 from the base station number 121 of the 16 table or base station as shown in FIG. B 1 21 is adjacent a peripheral base station B 2 22 and B 3 base station table 120 can select 23 such that, with the base station number 132 and call channel number 131 base station channel table 130 which associates as shown in FIG. 17. In the location information center 60a, first the base station number 121 sent from the mobile station 10b and the second
By collating the base station table 120 of Figure 16, the mobile station 10b selects the base station B 1 21 of the radio zones 31 that are resident圈surrounding base station B 2 22, B 3 23, and the like.
次いで、第17図の基地局チャネルテーブル130と移動局1
0bから送られてきた通話チャネル番号131とを照合し、
通話チャネル番号131からその通話チャネルを使用して
いる基地局を選択するが、一つの通話チャネル番号131
に対して複数の基地局番号が対応しているので、前段で
選択した基地局を選択する。Next, the base station channel table 130 and the mobile station 1 in FIG.
Match the call channel number 131 sent from 0b,
Select the base station using the call channel from the call channel number 131, but
Since a plurality of base station numbers correspond to, the base station selected in the previous stage is selected.
以上により、通話チャネル番号と移動局が在圈している
無線ゾーンの基地局およびその周辺基地局との対応が付
き、基地局番号とその基地局送信波の移動局における受
信電界レベルの対応が付けられる。From the above, the correspondence between the call channel number and the base station in the wireless zone where the mobile station is located and its surrounding base stations is provided, and the correspondence between the base station number and the received electric field level at the mobile station of the transmitted wave from the base station. Attached.
第18図は本発明の第六実施例による移動局の詳細を示す
ブロック構成図である。FIG. 18 is a block diagram showing details of the mobile station according to the sixth embodiment of the present invention.
本第六実施例は、第12図および第14図に示した第五実施
例において、移動局10cとして、電界強度地図90および
チャネルテーブル100を有する位置検出器19を設けたも
のである。In the sixth embodiment, the position detector 19 having the electric field intensity map 90 and the channel table 100 is provided as the mobile station 10c in the fifth embodiment shown in FIGS. 12 and 14.
第五実施例では電界強度地図90とチャネルテーブル100
とを位置情報センタ60aに置いているが、本第六実施例
は第15図に示すようにこれらを移動局10cに置き、移動
局10cで位置検出して移動局側で結果を利用したり、移
動局10cでの位置検出結果を移動局番号とともに移動通
信制御局40、位置情報センタ60、あるいは位置情報ユー
ザ70に送るようにしたものである。第18図において、位
置検出器19は、位置情報を検出する必要が生じたときに
メモリ18から通話チャネル番号101と受信電界レベルを
取り出し、チャネテーブル100と電界強度地図90とを使
って移動局10cの位置を検出し、信号配列送出器15へ送
る。In the fifth embodiment, the electric field strength map 90 and the channel table 100
In the sixth embodiment, these are placed in the mobile station 10c as shown in FIG. 15, and the mobile station 10c detects the position and uses the result on the mobile station side. The position detection result of the mobile station 10c is sent together with the mobile station number to the mobile communication control station 40, the position information center 60, or the position information user 70. In FIG. 18, the position detector 19 retrieves the call channel number 101 and the received electric field level from the memory 18 when it is necessary to detect the position information, and uses the channel table 100 and the electric field strength map 90 to move the mobile station. The position of 10c is detected and sent to the signal array transmitter 15.
なお、第五実施例の変形は、この他にも第一実施例ない
し第四実施例と同様に可能である。The modification of the fifth embodiment is also possible in the same manner as the first to fourth embodiments other than this.
以上説明したように、本発明は、移動局で移動体通信方
式の基地局送信波の受信電界レベルを基地局ごとに識別
検出し、移動局あるいは移動局の通信相手方等におい
て、受信電界レベルと位置を対応させた電界強度地図
と、前記検出された基地局ごとの受信電界レベルとを照
合することにより、移動体の位置を移動体通信方式の無
線ゾーン単位よりも高精度に検出できる効果がある。さ
らにこの検出に必要な設備は簡単なもので図む効果があ
る。As described above, the present invention distinguishes and detects the reception electric field level of the base station transmission wave of the mobile communication system for each base station in the mobile station, and in the mobile station or the communication counterpart of the mobile station, the reception electric field level By comparing the electric field strength map corresponding to the position and the received electric field level of each of the detected base stations, the effect that the position of the mobile body can be detected with higher accuracy than the wireless zone unit of the mobile communication system is obtained. is there. Furthermore, the equipment required for this detection is simple and effective.
第１図は本発明の原理を示す説明図。 第２図はその電界強度分布地図の一例を示す図。 第３図は本発明の第一実施例による移動通信システムを
示すブロック構成図。 第４図はその基地局情報信号の構成を示す説明図。 第５図（ａ）〜（ｄ）はその基地局情報信号の送信タイ
ミング図。 第６図はその移動局が受信する基地局情報信号を示す
図。 第７図はその移動局の詳細を示すブロック構成図。 第８図は本発明の第二実施例による移動通信システムの
要部を示すブロック構成図。 第９図はその移動局を詳細を示すブロック構成図。 第10図は本発明の第三実施例による移動通信システムの
要部を示すブロック構成図。 第11図は本発明の第四実施例による移動通信システムの
要部を示すブロック構成図。 第12図は本発明の第五実施例による移動通信システムを
示すブロック構成図。 第13図はそのチャネルテーブルの構成を示す説明図。 第14図はその移動局の詳細を示すブロック構成図。 第15図はそのチャネル指定信号の構成を示す説明図。 第16図はその基地局テーブルの構成を示す説明図。 第17図はその基地局チャネルテーブルの構成を示す説明
図。 第18図は本発明の第六実施例による移動局の詳細を示す
ブロック構成図。 第19図は従来例による移動通信システムの構成を示す説
明図。 第20図はその無線チャネル構成を示す説明図。 第21図はその制御信号の構成を示す説明図。 10、10a、10b、10c……移動局、11……アンテナ、12…
…移動機、13……電話機、14……位置情報検出器、15…
…信号配列送出器、16……モデム、17……受信機、18…
…メモリ、19……位置検出器、20……基地局、21……基
地局B1、22……基地局B2、23……基地局B3、30、31、3
2、33……無線ゾーン、40……移動通信制御局、50、5
1、52……通信回線、60、60a……位置情報センタ、61…
…位置情報送受信装置、70、70a……位置情報ユーザ、7
1……位置情報受信装置、80、153……基地局情報信号、
81、102、112、121、132……基地局番号、82……他情報
信号、90……電界強度地図、100……チャネルテーブ
ル、101、113、131……通話チャネル番号、110……チャ
ネル指定信号、111……移動局番号、120……基地局テー
ブル、122……周辺基地局番号、130……基地局チャネル
テーブル、141……通話チャネル、142……着信制御チャ
ネル、143……発信制御チャネル、150……制御信号、15
1……共通情報信号、152……着信情報信号。FIG. 1 is an explanatory diagram showing the principle of the present invention. FIG. 2 is a diagram showing an example of the electric field intensity distribution map. FIG. 3 is a block diagram showing a mobile communication system according to the first embodiment of the present invention. FIG. 4 is an explanatory diagram showing the configuration of the base station information signal. FIGS. 5A to 5D are transmission timing charts of the base station information signal. FIG. 6 is a diagram showing a base station information signal received by the mobile station. FIG. 7 is a block diagram showing the details of the mobile station. FIG. 8 is a block diagram showing a main part of a mobile communication system according to a second embodiment of the present invention. FIG. 9 is a block diagram showing the details of the mobile station. FIG. 10 is a block diagram showing a main part of a mobile communication system according to a third embodiment of the present invention. FIG. 11 is a block diagram showing a main part of a mobile communication system according to a fourth embodiment of the present invention. FIG. 12 is a block diagram showing a mobile communication system according to a fifth embodiment of the present invention. FIG. 13 is an explanatory diagram showing the structure of the channel table. FIG. 14 is a block diagram showing the details of the mobile station. FIG. 15 is an explanatory diagram showing the structure of the channel designation signal. FIG. 16 is an explanatory diagram showing the structure of the base station table. FIG. 17 is an explanatory diagram showing the structure of the base station channel table. FIG. 18 is a block diagram showing details of a mobile station according to a sixth embodiment of the present invention. FIG. 19 is an explanatory diagram showing a configuration of a mobile communication system according to a conventional example. FIG. 20 is an explanatory diagram showing the radio channel configuration. FIG. 21 is an explanatory diagram showing the structure of the control signal. 10, 10a, 10b, 10c ... Mobile station, 11 ... Antenna, 12 ...
… Mobile unit, 13… Telephone, 14… Position information detector, 15…
… Signal array transmitter, 16… modem, 17… receiver, 18…
... Memory, 19 ... Position detector, 20 ... Base station, 21 ... Base station B 1 , 22 ... Base station B 2 , 23 ... Base station B 3 , 30 , 31, 3
2, 33 …… Wireless zone, 40 …… Mobile communication control station, 50,5
1, 52 …… communication line, 60, 60a …… location information center, 61…
… Position information transmitter / receiver, 70, 70a …… Position information user, 7
1 …… Position information receiver, 80,153 …… Base station information signal,
81, 102, 112, 121, 132 ... Base station number, 82 ... Other information signal, 90 ... Electric field strength map, 100 ... Channel table, 101, 113, 131 ... Call channel number, 110 ... Channel Specified signal, 111 ... Mobile station number, 120 ... Base station table, 122 ... Neighboring base station number, 130 ... Base station channel table, 141 ... Call channel, 142 ... Incoming call control channel, 143 ... Outgoing call Control channel, 150 ... Control signal, 15
1 …… Common information signal, 152 …… Incoming information signal.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 服部 武 東京都千代田区内幸町１丁目１番６号 日 本電信電話株式会社内 審査官 池田 敏行 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Hattori 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Toshiyuki Ikeda Examiner, Nihon Telegraph and Telephone Corporation
Claims (1)
行う移動体通信方式における移動体位置検出方法におい
て、 複数の前記基地局からの電波を前記移動体でそれぞれ受
信し、あらかじめ求めておいた各基地局からの受信電界
レベルの等電界曲線を用いて各受信レベルに対応する前
記移動体の存在し得る範囲を求め、各範囲の重なりから
前記移動体の存在位置を検出する ことを特徴とする移動体位置検出方法。1. A mobile body position detecting method in a mobile communication system in which radio waves are communicated between a base station and a mobile body, wherein radio waves from a plurality of the base stations are respectively received by the mobile body and obtained in advance. Using the isoelectric field curve of the received electric field level from each base station set aside, the range in which the mobile body can exist corresponding to each reception level is obtained, and the position where the mobile body exists is detected from the overlap of each range. A method for detecting the position of a moving body, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63195800A JPH0693650B2 (en) | 1988-08-05 | 1988-08-05 | Moving body position detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63195800A JPH0693650B2 (en) | 1988-08-05 | 1988-08-05 | Moving body position detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0244929A JPH0244929A (en) | 1990-02-14 |
| JPH0693650B2 true JPH0693650B2 (en) | 1994-11-16 |
Family
ID=16347189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63195800A Expired - Lifetime JPH0693650B2 (en) | 1988-08-05 | 1988-08-05 | Moving body position detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0693650B2 (en) |
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-
1988
- 1988-08-05 JP JP63195800A patent/JPH0693650B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814627A2 (en) | 1995-07-25 | 1997-12-29 | Ace K Computer Co., Ltd. | Position display system of mobile terminal |
| JP2008124995A (en) * | 2006-11-15 | 2008-05-29 | Kenwood Corp | Mobile detection system and mobile radio device |
| JP2009055138A (en) * | 2007-08-23 | 2009-03-12 | Ritsumeikan | Method of collecting training data and position detecting method of mobile communication terminal using method |
| JP2017037071A (en) * | 2015-08-07 | 2017-02-16 | アジア航測株式会社 | Portable terminal existence region estimation device, portable terminal existence region providing system and portable terminal existence region estimation program |
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|---|---|
| JPH0244929A (en) | 1990-02-14 |
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