JP4113882B2 - Transmission speed evaluation system, transmission speed evaluation method, transmission speed evaluation program, and recording medium - Google Patents

Transmission speed evaluation system, transmission speed evaluation method, transmission speed evaluation program, and recording medium Download PDF

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JP4113882B2
JP4113882B2 JP2005058871A JP2005058871A JP4113882B2 JP 4113882 B2 JP4113882 B2 JP 4113882B2 JP 2005058871 A JP2005058871 A JP 2005058871A JP 2005058871 A JP2005058871 A JP 2005058871A JP 4113882 B2 JP4113882 B2 JP 4113882B2
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transmission rate
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transmission
field strength
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芳春 広島
佳春 秋山
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Nippon Telegraph and Telephone Corp
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本発明は、無線ＬＡＮ等の無線通信システムにおいて、通信エリア内の無線通信端末に対して必要十分な伝送速度を与えるような基地局の設置場所を決めるための伝送速度評価システム、伝送速度評価方法、伝送速度評価プログラムおよび記録媒体に関する。   The present invention relates to a transmission rate evaluation system and a transmission rate evaluation method for determining a location of a base station that gives a necessary and sufficient transmission rate to a wireless communication terminal in a communication area in a wireless communication system such as a wireless LAN. The present invention relates to a transmission rate evaluation program and a recording medium.

無線通信システムにおける従来の伝送速度評価システムとしては、通信エリア内の電波の受信強度や反射波による遅延特性等を考慮して、レイトレーシング法やＦＤ−ＴＤ法等によるシミュレーションを行って基地局の設置場所や設置数を求める方法があり、そのためのソフトウェアも販売されている。また、通信エリア内の電波の受信強度等を実測して最適な基地局の設置場所を判定する方法があり、置局支援サービスとして事業を行っている企業もある。   As a conventional transmission rate evaluation system in a wireless communication system, considering the reception strength of radio waves in a communication area, delay characteristics due to reflected waves, etc., a simulation is performed by a ray tracing method, an FD-TD method, etc. There are methods to determine the installation location and the number of installations, and software for that purpose is also sold. In addition, there is a method of determining the optimal base station installation location by actually measuring the reception intensity of radio waves in a communication area, and there are companies that are doing business as a station support service.

図５は、シミュレーションにより基地局の設置場所を判定する方法を示す（特許文献１）。図において、１は通信エリアの境界、２は壁、３は建物や看板等の障害物、４は無線通信システムの基地局、５は通信エリア内における伝送速度の評価場所、６は通信エリア全体の伝送速度評価マップに基づく伝送速度分布境界線を示す。   FIG. 5 shows a method of determining the installation location of a base station by simulation (Patent Document 1). In the figure, 1 is a boundary of a communication area, 2 is a wall, 3 is an obstacle such as a building or a signboard, 4 is a base station of a wireless communication system, 5 is a place for evaluating a transmission speed in the communication area, and 6 is an entire communication area. The transmission rate distribution boundary line based on the transmission rate evaluation map is shown.

シミュレーションは、通信エリア内の評価場所５において、基地局４から送信された信号（図中、矢印線で示す）の伝送速度を電磁界理論に従って計算する。このとき、信号が複数の経路を通って評価場所５に到達するまでに、通信エリアの境界１、壁２および障害物３で透過および反射したときに、材質によって異なる透過減衰量および反射減衰量等の電磁的特性によって減衰すること、さらに評価場所５に至る複数の経路長の違いによる遅延を考慮して計算を行う。評価結果を示す伝送速度分布境界線６は、評価場所５を通信エリア内の全ての場所について移動してシミュレーションを行った結果である。ここでは、２つの基地局４を同時使用したときの伝送速度評価結果を示す。   In the simulation, the transmission speed of a signal (indicated by an arrow line in the figure) transmitted from the base station 4 is calculated according to the electromagnetic field theory at the evaluation place 5 in the communication area. At this time, when the signal is transmitted and reflected by the boundary 1, the wall 2 and the obstacle 3 of the communication area until the signal reaches the evaluation place 5 through a plurality of paths, the transmission attenuation amount and the reflection attenuation amount differ depending on the material. The calculation is performed in consideration of the attenuation due to the electromagnetic characteristics such as the above, and the delay due to the difference in a plurality of path lengths to the evaluation place 5. The transmission rate distribution boundary line 6 indicating the evaluation result is a result of performing the simulation by moving the evaluation place 5 for all the places in the communication area. Here, a transmission rate evaluation result when two base stations 4 are used simultaneously is shown.

図６は、実測により基地局の設置場所を判定する方法を示す。図において、１は通信エリアの境界、２は壁、３は建物や看板等の障害物、４は無線通信システムの基地局、７は基地局４から送信される信号の伝送速度を測定する無線通信端末、８は無線通信端末７が移動する測定経路（開始点Ｓから終点Ｅまで一筆書きルート）、９は測定経路８上にあって伝送速度を測定する測定ポイント、６は通信エリア全体の伝送速度評価マップに基づく伝送速度分布境界線を示す。   FIG. 6 shows a method of determining the installation location of the base station by actual measurement. In the figure, 1 is a boundary of a communication area, 2 is a wall, 3 is an obstacle such as a building or a signboard, 4 is a base station of a radio communication system, and 7 is a radio that measures the transmission speed of a signal transmitted from the base station 4. A communication terminal 8 is a measurement path along which the wireless communication terminal 7 moves (a one-stroke path from the start point S to the end point E), 9 is a measurement point on the measurement path 8 for measuring the transmission speed, and 6 is an entire communication area. The transmission rate distribution boundary line based on the transmission rate evaluation map is shown.

測定者が無線通信端末７を所持しながら測定経路８上を移動し、各測定ポイント９で基地局４から送信される信号の伝送速度を無線通信端末７で測定する。通信エリアの任意の場所における伝送速度は、近傍の測定ポイントにおける伝送速度から推定する。ここでは、２つの基地局４を同時使用したときの伝送速度評価結果を示す。
特開平１１−２３１００３号公報 The measurer moves on the measurement path 8 while holding the wireless communication terminal 7, and the wireless communication terminal 7 measures the transmission rate of the signal transmitted from the base station 4 at each measurement point 9. The transmission rate at an arbitrary location in the communication area is estimated from the transmission rate at a nearby measurement point. Here, a transmission rate evaluation result when two base stations 4 are used simultaneously is shown.
JP 11-23003 A

シミュレーションによって基地局の設置場所を判定する方法では、評価場所に到達するまでの信号の全ての伝搬経路について計算することが不可能であるため誤差が大きい問題があった。また、ソフトウェアによってシミュレーションを行うためには、通信エリアの範囲における膨大な電磁的特性のデータ入力が必須であり、さらにソフトウェア自体も極めて高価である問題もあった。   In the method of determining the installation location of the base station by simulation, there is a problem that the error is large because it is impossible to calculate all the propagation paths of signals until reaching the evaluation location. In addition, in order to perform simulation by software, it is indispensable to input a large amount of electromagnetic characteristic data in the communication area, and the software itself is extremely expensive.

一方、実測によって基地局の設置場所を判定する方法では、通信エリア内の多くの測定ポイントで伝送速度を測定する必要があり、さらに基地局を移動するたびに各測定ポイントで測定を繰り返す必要があり、効率が悪かった。また、通信エリアの任意の場所における伝送速度の推定精度を上げるためには、伝送速度を実測する測定ポイントを多くする必要がある。しかし、測定ポイントを多くすると時間がかかり、効率と精度はトレードオフの関係になっている。   On the other hand, in the method of determining the location of the base station by actual measurement, it is necessary to measure the transmission speed at many measurement points in the communication area, and it is necessary to repeat the measurement at each measurement point each time the base station moves. Yes, the efficiency was bad. Further, in order to increase the estimation accuracy of the transmission rate at any place in the communication area, it is necessary to increase the number of measurement points for actually measuring the transmission rate. However, increasing the number of measurement points takes time, and efficiency and accuracy are in a trade-off relationship.

本発明は、多くの測定ポイントで効率よく伝送速度を測定し、通信エリア全体における伝送速度分布を精度よくかつ効率的に判定することができる伝送速度評価システム、伝送速度評価方法、伝送速度評価プログラムおよび記録媒体を提供することを目的とする。   The present invention provides a transmission rate evaluation system, a transmission rate evaluation method, and a transmission rate evaluation program capable of efficiently measuring a transmission rate at many measurement points and accurately and efficiently determining a transmission rate distribution in the entire communication area. And a recording medium.

（第１の発明）
第１の発明は、無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価システムにおいて、第１の送信指示によって無線通信システムで使用される周波数帯の無線信号を送信する少なくとも１つの基地局と、通信エリア内に設置され、第２の送信指示によって基地局から送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信する複数のセンサと、第１の送信指示および第２の送信指示を行い、第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データを受信する制御部とを備え、制御部は、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、各センサから送信された識別符号と受信電界強度測定データから通信エリア内の位置に対する伝送速度を判定する構成である。 (First invention)
According to a first aspect of the present invention, there is provided a transmission rate evaluation system for determining a transmission rate according to a location of a base station in a communication area of a wireless communication system. At least one base station that transmits a signal, and the reception field strength of the radio signal that is installed in the communication area and transmitted from the base station according to the second transmission instruction is measured, together with a unique identification code. A plurality of sensors that transmit data, a control unit that performs a first transmission instruction and a second transmission instruction, and receives an identification code and received electric field strength measurement data transmitted from the sensor that has performed the second transmission instruction; And the control unit transmits from each sensor based on the positional information corresponding to the identification code of each sensor and the transmission rate correlation data corresponding to the received electric field strength measurement data. A determining arrangement the transmission rate to a position in the communication area from the identification code and a received field strength measurement data.

また、制御部は、複数の基地局に対して同時に第１の送信指示を行う構成であり、センサは、複数の基地局から送信された無線信号を受信して受信電界強度を測定する構成としてもよい。また、制御部は、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する構成としてもよい。   Further, the control unit is configured to issue a first transmission instruction to a plurality of base stations at the same time, and the sensor is configured to receive radio signals transmitted from the plurality of base stations and measure received electric field strength. Also good. Further, the control unit may be configured to estimate the transmission speed in a place where no sensor is installed from the position of a nearby sensor and the received electric field strength measurement data.

また、無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価方法およびプログラムにおいて、制御部は、少なくとも１つの基地局に対して第１の送信指示を行い、通信エリア内に設置された複数のセンサに対して第２の送信指示を行う第１のステップと、第１の送信指示を受けた基地局から送信された無線信号の受信電界強度を第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する第２のステップと、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、各センサから送信された識別符号と受信電界強度測定データから通信エリア内の位置に対する伝送速度を判定する第３のステップとを有する。   In the transmission rate evaluation method and program for determining the transmission rate according to the installation location of the base station in the communication area of the wireless communication system, the control unit issues a first transmission instruction to at least one base station. A first step of giving a second transmission instruction to a plurality of sensors installed in the communication area, and a received electric field strength of a radio signal transmitted from a base station that has received the first transmission instruction The second step of receiving the identification code and the received electric field strength measurement data transmitted from each sensor, the positional information corresponding to the identification code of each sensor, and the received electric field A third method for determining a transmission rate for a position in the communication area from the identification code transmitted from each sensor and the received electric field strength measurement data based on correlation data of the transmission rate corresponding to the intensity measurement data. And a step.

また、第１のステップは、複数の基地局に対して同時に第１の送信指示を行い、第２のステップは、第１の送信指示を受けた複数の基地局から送信された無線信号の受信電界強度を第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信するようにしてもよい。また、第３のステップは、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定するようにしてもよい。   In the first step, a first transmission instruction is simultaneously given to a plurality of base stations, and in a second step, reception of radio signals transmitted from the plurality of base stations receiving the first transmission instruction is performed. Each sensor that has received the second transmission instruction may measure the electric field strength, and may receive the identification code and the received electric field strength measurement data transmitted from each sensor. In the third step, the transmission speed in a place where no sensor is installed may be estimated from the position of a nearby sensor and the received electric field strength measurement data.

（第２の発明）
第２の発明は、無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価システムにおいて、通信エリア内に設置され、第１の送信指示によって無線通信システムで使用される周波数帯の無線信号を送信し、第２の送信指示によって他のセンサから送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信する複数のセンサと、複数のセンサのうち少なくとも１つのセンサに対して第１の送信指示を行い、他のセンサに対して第２の送信指示を行い、第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データを受信する制御部とを備え、制御部は、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データから、通信エリア内の位置に対する伝送速度を判定する構成である。 (Second invention)
A second invention is a transmission rate evaluation system for determining a transmission rate according to the installation location of a base station in a communication area of a wireless communication system. A plurality of radio signals transmitted in the frequency band to be used, the received electric field strength of the radio signal transmitted from another sensor in accordance with the second transmission instruction is measured, and the received electric field strength measurement data is transmitted together with a unique identification code. The first transmission instruction is sent to at least one of the plurality of sensors, and the second transmission instruction is sent to the other sensors, and the second transmission instruction is sent from the sensor that has given the second transmission instruction. And a control unit for receiving the received electric field strength measurement data.The control unit corresponds to the position information corresponding to the identification code of each sensor and the received electric field strength measurement data. Based on the correlation data transmission rate, the reception field strength measurement data and identification code transmitted from the sensor performing the second transmission instruction, a determining arrangement the transmission rate for the position in the communication area.

また、制御部は、第１の送信指示を行うセンサを変えて、通信エリア内の伝送速度の判定を複数回行う構成としてもよい。また、制御部は、複数のセンサに対して同時に第１の送信指示を行う構成であり、第２の送信指示を受けたセンサは、複数のセンサから送信された無線信号を受信して受信電界強度を測定する構成としてもよい。また、制御部は、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する構成としてよい。   Further, the control unit may change the sensor that performs the first transmission instruction, and may determine the transmission rate in the communication area a plurality of times. In addition, the control unit is configured to issue a first transmission instruction to a plurality of sensors at the same time, and the sensor that has received the second transmission instruction receives a radio signal transmitted from the plurality of sensors and receives a received electric field. It is good also as a structure which measures intensity | strength. Further, the control unit may be configured to estimate the transmission speed in a place where no sensor is installed from the position of a nearby sensor and the received electric field strength measurement data.

また、無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価方法およびプログラムにおいて、制御部は、通信エリア内に設置された複数のセンサのうち少なくとも１つのセンサに対して第１の送信指示を行い、他のセンサに対して第２の送信指示を行う第１のステップと、第１の送信指示を受けたセンサから送信された無線信号の受信電界強度を第２の送信指示を受けた他の各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する第２のステップと、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、第２の送信指示を受けたセンサから送信された識別符号と受信電界強度測定データから、通信エリア内の位置に対する伝送速度を判定する第３のステップとを有する。   In the transmission rate evaluation method and program for determining the transmission rate according to the installation location of the base station in the communication area of the wireless communication system, the control unit includes at least one of a plurality of sensors installed in the communication area. A first step of giving a first transmission instruction to a sensor and a second transmission instruction to another sensor, and a received electric field intensity of a radio signal transmitted from the sensor that has received the first transmission instruction The second step of measuring each other sensor receiving the second transmission instruction and receiving the identification code and the received electric field strength measurement data transmitted from each sensor, and the position corresponding to the identification code of each sensor Based on the information and the correlation data of the transmission rate corresponding to the received electric field strength measurement data, the communication error is determined from the identification code transmitted from the sensor that has received the second transmission instruction and the received electric field strength measurement data. And a third step of determining a transmission rate to a position in the store.

また、第１〜第３のステップは、第１の送信指示を行うセンサを変えて、通信エリア内の伝送速度の判定を複数回行うようにしてもよい。また、第１のステップは、複数のセンサに対して同時に第１の送信指示を行い、第２のステップは、第１の送信指示を受けた複数のセンサから送信された無線信号の受信電界強度を第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信するようにしてもよい。また、第３のステップは、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定するようにしてもよい。   In the first to third steps, the transmission rate in the communication area may be determined a plurality of times by changing the sensor that performs the first transmission instruction. In the first step, a first transmission instruction is simultaneously given to a plurality of sensors, and a second step is a received electric field strength of a radio signal transmitted from the plurality of sensors that has received the first transmission instruction. May be measured by each sensor receiving the second transmission instruction, and the identification code and the received electric field strength measurement data transmitted from each sensor may be received. In the third step, the transmission speed in a place where no sensor is installed may be estimated from the position of a nearby sensor and the received electric field strength measurement data.

また、第１の発明および第２の発明において、制御部は、通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成するようにしてもよい。また、第１の送信指示および第２の送信指示の信号と、各センサの識別符号および受信電界強度測定データの信号は、無線通信システムで使用される周波数帯と異なる周波数帯の無線信号としてもよい。   In the first and second inventions, the control unit may create a transmission rate evaluation map representing a distribution in which positions in the communication area are associated with transmission rates. Further, the first transmission instruction signal and the second transmission instruction signal, the identification code of each sensor and the received electric field strength measurement data signal may be radio signals in a frequency band different from the frequency band used in the radio communication system. Good.

本発明は、安価な複数のセンサを使用し、各センサで基地局から送信させた無線信号の受信電界強度を測定することにより、通信エリア内における伝送速度を一度に評価することができる。   The present invention can evaluate the transmission speed in a communication area at a time by using a plurality of inexpensive sensors and measuring the reception electric field strength of a radio signal transmitted from the base station by each sensor.

また、一部のセンサに基地局の代わりで無線信号を送信させ、他のセンサで受信電界強度を測定することにより、通信エリア内における伝送速度を一度に評価することができるとともに、基地局を移動しての再評価を効率よく実施することができる。   In addition, by causing some sensors to transmit radio signals instead of the base station and measuring the received electric field strength with other sensors, the transmission speed in the communication area can be evaluated at one time, and the base station The re-evaluation after moving can be carried out efficiently.

（第１の実施形態）
図１は、本発明の伝送速度評価システムの第１の実施形態を示す。図において、１は通信エリアの境界、２は壁、３は建物や看板等の障害物、４は無線通信システムの基地局、１０は各測定ポイントで受信電界強度を測定してその受信電界強度測定データを送信するセンサ（図中黒丸で示す）、１１は各センサ１０から送信された受信電界強度測定データを集計して通信エリアの各場所における伝送速度を判定し、さらに伝送速度評価マップを作成する制御部、６は通信エリア全体の伝送速度評価マップに基づく伝送速度分布境界線を示す。 (First embodiment)
FIG. 1 shows a first embodiment of the transmission rate evaluation system of the present invention. In the figure, 1 is a boundary of a communication area, 2 is a wall, 3 is an obstacle such as a building or a signboard, 4 is a base station of a wireless communication system, and 10 is a received electric field strength measured at each measurement point. Sensors for transmitting measurement data (indicated by black circles in the figure), 11 sums up received electric field strength measurement data transmitted from each sensor 10 to determine the transmission speed at each location in the communication area, and further displays a transmission speed evaluation map A controller 6 to be created indicates a transmission rate distribution boundary line based on a transmission rate evaluation map of the entire communication area.

以下、図１および図２に示す第１の実施形態における処理手順を参照して説明する。制御部１１は、基地局４に対して無線通信システムで使用する周波数帯の無線信号の送信指示を行い、その後に各測定ポイントのセンサ１０に対して受信電界強度測定データの送信指示を行う。基地局４は、制御部１１からの送信指示に応じて、各測定ポイントのセンサ１０で受信電界強度を測定するために、無線通信システムで使用する周波数帯の無線信号を送信する。各測定ポイントのセンサ１０は、制御部１１からの送信指示に応じて、基地局４から送信された無線信号の受信電界強度を測定し、各センサの識別符号とともに受信電界強度測定データを制御部１１に送信する。   Hereinafter, the processing procedure in the first embodiment shown in FIGS. 1 and 2 will be described. The control unit 11 instructs the base station 4 to transmit a radio signal in a frequency band used in the wireless communication system, and then instructs the sensor 10 at each measurement point to transmit received field strength measurement data. In response to a transmission instruction from the control unit 11, the base station 4 transmits a radio signal in a frequency band used in the radio communication system in order to measure the received electric field strength with the sensor 10 at each measurement point. The sensor 10 at each measurement point measures the received electric field strength of the radio signal transmitted from the base station 4 in response to a transmission instruction from the control unit 11, and receives the received electric field strength measurement data together with the identification code of each sensor. 11 to send.

制御部１１には、各センサの識別符号に対応する位置情報が登録されており、各測定ポイントのセンサ１０から送信された識別符号と受信電界強度測定データを受信し、各センサの識別符号に応じた各測定ポイントの位置情報と受信電界強度測定データを対応づける。このとき、センサ１０が設置されていない場所における受信電界強度は、近傍のセンサの位置と受信電界強度測定データから推定してもよい。その後、予め測定しておいた受信電界強度と無線通信システムの伝送速度の相関データに基づき、受信電界強度測定データを伝送速度に変換し、各測定ポイントのセンサ１０の位置に対する伝送速度を判定し、通信エリア内の伝送速度評価マップを作成する。   In the control unit 11, position information corresponding to the identification code of each sensor is registered, and the identification code and the received electric field strength measurement data transmitted from the sensor 10 at each measurement point are received, and the identification code of each sensor is received. Corresponding position information of each measurement point corresponding to the received electric field strength measurement data. At this time, the received electric field strength in a place where the sensor 10 is not installed may be estimated from the position of a nearby sensor and the received electric field strength measurement data. Thereafter, based on the correlation data between the received electric field strength and the transmission speed of the wireless communication system measured in advance, the received electric field strength measurement data is converted into the transmission speed, and the transmission speed with respect to the position of the sensor 10 at each measurement point is determined. Create a transmission rate evaluation map in the communication area.

次に、制御部１１は別の基地局４に対して無線信号の送信指示を行い、各測定ポイントのセンサ１０に対して受信電界強度測定データの送信指示を行う。以下同様の処理を繰り返し、無線信号を送信する基地局４を変えながら、それぞれの基地局に対して各測定ポイントのセンサ１０の位置における伝送速度を判定し、通信エリア内の伝送速度評価マップを作成する。これらの伝送速度評価マップを組み合わせることにより、任意の基地局位置での伝送速度評価マップを作成することもできる。   Next, the control unit 11 instructs another base station 4 to transmit a radio signal, and instructs the sensor 10 at each measurement point to transmit received field strength measurement data. Thereafter, the same processing is repeated to determine the transmission rate at the position of the sensor 10 at each measurement point for each base station while changing the base station 4 that transmits the radio signal, and the transmission rate evaluation map in the communication area is determined. create. By combining these transmission rate evaluation maps, a transmission rate evaluation map at an arbitrary base station position can be created.

また、通信エリア内に複数の基地局４を配置し、制御部１１は複数の基地局４に対して同時に無線信号の送信指示を行い、各測定ポイントのセンサ１０は複数の基地局４から送信された無線信号の受信電界強度を測定するようにしてもよい。以下同様に、当該複数の基地局４に対して各測定ポイントのセンサ１０の位置における伝送速度を判定し、通信エリア内の伝送速度評価マップを作成する。図１に示す伝送速度評価マップは、２つの基地局４を同時使用したときの伝送速度評価結果を示す。   In addition, a plurality of base stations 4 are arranged in the communication area, the control unit 11 instructs the plurality of base stations 4 to transmit radio signals simultaneously, and the sensor 10 at each measurement point transmits from the plurality of base stations 4. You may make it measure the received electric field strength of the radio | wireless signal made. Similarly, the transmission rate at the position of the sensor 10 at each measurement point is determined for the plurality of base stations 4, and a transmission rate evaluation map in the communication area is created. The transmission rate evaluation map shown in FIG. 1 shows a transmission rate evaluation result when two base stations 4 are used simultaneously.

また、制御部１１から基地局４および各センサ１０に対する送信指示の信号、および各センサ１０から送信する識別符号および受信電界強度測定データの信号は、基地局４が送信する無線通信システムで使用される周波数帯の無線信号と異なる周波数帯としてもよい。   Further, the signal of the transmission instruction from the control unit 11 to the base station 4 and each sensor 10 and the signal of the identification code and the received electric field strength measurement data transmitted from each sensor 10 are used in the wireless communication system transmitted by the base station 4. It is good also as a frequency band different from the radio signal of a certain frequency band.

本実施形態では、従来の無線通信端末を移動させながら測定を行う方式に比べると、センサ１０を配置した複数の測定ポイントで同時に受信電界強度を測定し、その測定データを制御部１１に送信して通信エリアの伝送速度分布を計算することができるので格段に効率がよい。ただし、基地局４の位置および設置数を変更するたびに各測定ポイントのセンサ１０で受信電界強度を測定する必要があり、その点における効率性は従来方式と同等である。なお、使用するセンサ１０は、基地局４から送信された信号を受信して、その識別符号と受信電界強度測定データを送信するだけであるので、出力パワーの小さいものでよい。   In the present embodiment, compared to a conventional method of performing measurement while moving a wireless communication terminal, the received electric field strength is measured simultaneously at a plurality of measurement points where the sensor 10 is arranged, and the measurement data is transmitted to the control unit 11. Thus, the transmission rate distribution in the communication area can be calculated, which is extremely efficient. However, every time the position and the number of installations of the base station 4 are changed, it is necessary to measure the received electric field strength with the sensor 10 at each measurement point, and the efficiency in this respect is equivalent to the conventional method. Since the sensor 10 to be used only receives the signal transmitted from the base station 4 and transmits the identification code and the received electric field strength measurement data, the sensor 10 may have a small output power.

また、本実施形態の制御部１１の処理は、コンピュータプログラムとして実現可能であり、制御部１１は当該伝送速度評価プログラムを記憶媒体に記録したコンピュータであってもよい。すなわち、制御部１１のプログラムは、第１のステップにおいて、少なくとも１つの基地局に対して無線信号の送信指示を行い、通信エリア内に設置された複数のセンサに対して受信電界強度測定データの送信指示を行う。第２のステップは、無線信号の送信指示を受けた基地局から送信された無線信号の受信電界強度を、受信電界強度測定データの送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する。第３のステップは、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、各センサから送信された識別符号と受信電界強度測定データから通信エリア内の位置に対する伝送速度を判定する。   Moreover, the process of the control part 11 of this embodiment is realizable as a computer program, and the control part 11 may be the computer which recorded the said transmission rate evaluation program on the storage medium. That is, in the first step, the program of the control unit 11 issues a radio signal transmission instruction to at least one base station, and receives received field strength measurement data for a plurality of sensors installed in the communication area. Send instructions. In the second step, each sensor receiving the transmission instruction of the reception field strength measurement data measures the reception field strength of the radio signal transmitted from the base station that has received the transmission instruction of the radio signal, and transmitted from each sensor. The received identification code and received field strength measurement data are received. The third step is communication from the identification code transmitted from each sensor and the received electric field strength measurement data based on the positional information corresponding to the identification code of each sensor and the correlation data of the transmission speed corresponding to the received electric field strength measurement data. Determine the transmission rate for the position in the area.

また、制御部１１のプログラムは、第１のステップにおいて、複数の基地局に対して同時に無線信号の送信指示を行い、第２のステップにおいて、無線信号の送信指示を受けた複数の基地局から送信された無線信号の受信電界強度を、受信電界強度測定データの送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信するようにしてもよい。   In the first step, the program of the control unit 11 simultaneously instructs a plurality of base stations to transmit radio signals, and in the second step, from the plurality of base stations that have received the radio signal transmission instructions. The received electric field strength of the transmitted radio signal is measured by each sensor that has received an instruction to transmit the received electric field strength measurement data, and the identification code and the received electric field strength measurement data transmitted from each sensor are received. Good.

また、制御部１１のプログラムは、第３のステップにおいて、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定するようにしてもよい。   Further, in the third step, the program of the control unit 11 may estimate the transmission speed in a place where the sensor is not installed from the position of the nearby sensor and the received electric field strength measurement data.

また、制御部１１のプログラムは、第３のステップにおいて、通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成するようにしてもよい。   Further, in the third step, the program of the control unit 11 may create a transmission rate evaluation map representing a distribution in which positions in the communication area and transmission rates are associated with each other.

（第２の実施形態）
図３は、本発明の伝送速度評価システムの第２の実施形態を示す。図において、１は通信エリアの境界、２は壁、３は建物や看板等の障害物、１２は基地局に代わって所定の無線信号を送信するとともに、各測定ポイントで受信電界強度を測定してその受信電界強度測定データを送信するセンサ（図中黒丸で示す）、１３は各センサ１２から送信された受信電界強度の測定データを集計して通信エリアの各場所における伝送速度を判定し、さらに伝送速度評価マップを作成する制御部、６は通信エリア全体の伝送速度評価マップに基づく伝送速度分布境界線を示す。 (Second Embodiment)
FIG. 3 shows a second embodiment of the transmission rate evaluation system of the present invention. In the figure, 1 is a boundary of a communication area, 2 is a wall, 3 is an obstacle such as a building or signboard, 12 is a predetermined radio signal transmitted on behalf of a base station, and the received electric field strength is measured at each measurement point. A sensor for transmitting the received electric field strength measurement data (indicated by a black circle in the figure), 13 sums up the received electric field strength measurement data transmitted from each sensor 12 to determine the transmission speed at each location in the communication area; Further, a control unit 6 for creating a transmission rate evaluation map, 6 shows a transmission rate distribution boundary line based on the transmission rate evaluation map of the entire communication area.

以下、図３および図４に示す第２の実施形態における処理手順を参照して説明する。制御部１３は、少なくとも１つのセンサ１２に対して無線通信システムで使用する周波数帯の無線信号の送信指示を行い、その後にその他のセンサ１２に対して受信電界強度測定データの送信指示を行う。無線信号の送信指示を受けたセンサ１２は、その他のセンサ１２で受信電界強度を測定するために、無線通信システムで使用する周波数帯の無線信号を送信する。無線信号を送信した以外のセンサ１２は、制御部１３からの送信指示に応じて、無線信号の受信電界強度を測定し、各センサの識別符号とともに受信電界強度測定データを制御部１３に送信する。   Hereinafter, the processing procedure in the second embodiment shown in FIGS. 3 and 4 will be described. The control unit 13 instructs the at least one sensor 12 to transmit a radio signal in a frequency band used in the radio communication system, and thereafter instructs the other sensors 12 to transmit the received electric field strength measurement data. Upon receiving the radio signal transmission instruction, the sensor 12 transmits a radio signal in a frequency band used in the radio communication system in order to measure the received electric field strength by the other sensors 12. The sensors 12 other than the one that has transmitted the radio signal measure the received electric field strength of the radio signal in response to a transmission instruction from the control unit 13 and transmit the received electric field strength measurement data together with the identification code of each sensor to the control unit 13. .

制御部１３には、各センサの識別符号に対応する位置情報が登録されており、各測定ポイントのセンサ１２から送信された識別符号と受信電界強度測定データを受信し、各センサの識別符号に応じた各測定ポイントの位置情報と受信電界強度測定データを対応づける。このとき、センサ１２が設置されていない場所における受信電界強度は、近傍のセンサの位置と受信電界強度測定データから推定してもよい。その後、予め測定しておいた受信電界強度と無線通信システムの伝送速度の相関データに基づき、受信電界強度測定データを伝送速度に変換し、各測定ポイントのセンサ１０の位置に対する伝送速度を判定し、無線信号を送信したセンサ１２を基地局とする通信エリア内の伝送速度評価マップを作成する。   The control unit 13 stores position information corresponding to the identification code of each sensor, receives the identification code and the received electric field strength measurement data transmitted from the sensor 12 at each measurement point, and receives the identification code of each sensor. Corresponding position information of each measurement point corresponding to the received electric field strength measurement data. At this time, the received electric field strength at a place where the sensor 12 is not installed may be estimated from the position of a nearby sensor and the received electric field strength measurement data. Thereafter, based on the correlation data between the received electric field strength and the transmission speed of the wireless communication system measured in advance, the received electric field strength measurement data is converted into the transmission speed, and the transmission speed with respect to the position of the sensor 10 at each measurement point is determined. Then, a transmission rate evaluation map is created in the communication area using the sensor 12 that has transmitted the radio signal as a base station.

次に、制御部１３は、別のセンサ１２に対して無線通信システムで使用する周波数帯の無線信号の送信指示を行い、その後にその他のセンサ１２に対して受信電界強度測定データの送信指示を行う。以下同様の処理を繰り返し、無線信号を送信するセンサ１２を変えながら、それぞれのセンサを基地局とする通信エリア内の伝送速度評価マップを作成する。これらの伝送速度評価マップを組み合わせることにより、任意の基地局位置での伝送速度評価マップを作成することができる。   Next, the control unit 13 instructs another sensor 12 to transmit a radio signal in a frequency band used in the wireless communication system, and then instructs other sensors 12 to transmit received field strength measurement data. Do. Thereafter, the same processing is repeated to create a transmission rate evaluation map in the communication area using each sensor as a base station while changing the sensor 12 that transmits the radio signal. By combining these transmission rate evaluation maps, a transmission rate evaluation map at an arbitrary base station position can be created.

また、制御部１３は通信エリア内の複数のセンサ１２に対して同時に無線信号の送信指示を行い、他のセンサ１２は送信指示を受けた複数のセンサ１２から送信された無線信号の受信電界強度を測定するようにしてもよい。以下同様に、当該複数のセンサ１２を基地局として各測定ポイントのセンサ１２の位置における伝送速度を判定し、通信エリア内の伝送速度評価マップを作成する。図３に示す伝送速度評価マップは、２つのセンサ１２ａ，１２ｂを同時に基地局として無線信号を送信させたときの伝送速度評価結果を示す。   In addition, the control unit 13 instructs the plurality of sensors 12 in the communication area to transmit radio signals at the same time, and the other sensors 12 receive electric field strengths of the radio signals transmitted from the plurality of sensors 12 that have received the transmission instructions. May be measured. Similarly, the transmission speed at the position of the sensor 12 at each measurement point is determined using the plurality of sensors 12 as base stations, and a transmission speed evaluation map in the communication area is created. The transmission rate evaluation map shown in FIG. 3 shows a transmission rate evaluation result when radio signals are transmitted simultaneously using the two sensors 12a and 12b as base stations.

また、制御部１３から各センサ１２に対する送信指示の信号、および各センサ１２から送信する識別符号および受信電界強度測定データの信号は、無線通信システムで使用される周波数帯の無線信号と異なる周波数帯としてもよい。   In addition, the signal of the transmission instruction to each sensor 12 from the control unit 13 and the signal of the identification code and the received electric field strength measurement data transmitted from each sensor 12 are in a frequency band different from the radio signal of the frequency band used in the radio communication system. It is good.

本実施形態では、各測定ポイントにセンサ１２を１度設置するだけで、各測定ポイントに基地局を設置した場合の伝送速度評価マップを作成することができ、従来方式および本発明の第１の実施形態に比べて大幅に効率を改善することができる。ただし、使用するセンサ１２は、他のセンサから送信された無線信号を受信してその受信電界強度測定データを送信するだけでなく、自らも基地局の代わりとして無線信号を送信する必要があり、出力パワーの大きなものが必要である。   In this embodiment, it is possible to create a transmission rate evaluation map when a base station is installed at each measurement point only by installing the sensor 12 once at each measurement point. The efficiency can be greatly improved as compared with the embodiment. However, the sensor 12 to be used not only receives the radio signal transmitted from the other sensor and transmits the received electric field strength measurement data, but also needs to transmit the radio signal instead of the base station itself, A thing with large output power is required.

また、本実施形態の制御部１３の処理は、コンピュータプログラムとして実現可能であり、制御部１３は当該伝送速度評価プログラムを記憶媒体に記録したコンピュータであってもよい。すなわち、制御部１３のプログラムは、第１のステップにおいて、通信エリア内に設置された複数のセンサのうち少なくとも１つのセンサに対して無線信号の送信指示を行い、他のセンサに対して受信電界強度測定データの送信指示を行う。第２のステップは、無線信号の送信指示を受けたセンサから送信された無線信号の受信電界強度を、受信電界強度測定データの送信指示を受けた他の各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する。第３のステップは、各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、受信電界強度測定データの送信指示を受けたセンサから送信された識別符号と受信電界強度測定データから、通信エリア内の位置に対する伝送速度を判定する。   Moreover, the process of the control part 13 of this embodiment is realizable as a computer program, and the control part 13 may be the computer which recorded the said transmission rate evaluation program on the storage medium. That is, in the first step, the program of the control unit 13 instructs the at least one of the plurality of sensors installed in the communication area to transmit a radio signal, and receives the received electric field from the other sensors. Instructs transmission of intensity measurement data. In the second step, each of the other sensors receiving the transmission instruction of the received electric field strength measurement data measures the received electric field strength of the radio signal transmitted from the sensor that has received the transmission instruction of the radio signal. The transmitted identification code and received field strength measurement data are received. The third step is transmitted from the sensor that has received the transmission instruction of the received electric field strength measurement data based on the positional information corresponding to the identification code of each sensor and the correlation data of the transmission speed corresponding to the received electric field strength measurement data. The transmission rate for the position in the communication area is determined from the identification code and received field strength measurement data.

また、制御部１３のプログラムは、第１〜第３のステップにおいて、無線信号の送信指示を行うセンサを変えて、通信エリア内の伝送速度の判定を複数回行うようにしてもよい。   In addition, the program of the control unit 13 may determine the transmission rate in the communication area a plurality of times by changing the sensor that instructs to transmit a radio signal in the first to third steps.

また、制御部１３のプログラムは、第１のステップにおいて、複数のセンサに対して同時に無線信号の送信指示を行い、第２のステップにおいて、無線信号の送信指示を受けた複数のセンサから送信された無線信号の受信電界強度を、受信電界強度測定データの送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信するようにしてもよい。   In the first step, the program of the control unit 13 instructs the plurality of sensors to transmit radio signals simultaneously, and in the second step, the program is transmitted from the plurality of sensors that have received the radio signal transmission instructions. The received electric field strength of the received radio signal may be measured by each sensor that has received an instruction to transmit the received electric field strength measurement data, and the identification code and the received electric field strength measurement data transmitted from each sensor may be received.

また、制御部１３のプログラムは、第３のステップにおいて、センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定するようにしてもよい。   Further, in the third step, the program of the control unit 13 may estimate the transmission speed in a place where the sensor is not installed from the position of the nearby sensor and the received electric field strength measurement data.

また、制御部１３のプログラムは、第３のステップにおいて、通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成するようにしてもよい。   Further, in the third step, the program of the control unit 13 may create a transmission rate evaluation map representing a distribution in which positions in the communication area and transmission rates are associated with each other.

本発明の伝送速度評価システムの第１の実施形態を示す図。The figure which shows 1st Embodiment of the transmission-rate evaluation system of this invention. 第１の実施形態における処理手順を示す図。The figure which shows the process sequence in 1st Embodiment. 本発明の伝送速度評価システムの第２の実施形態を示す図。The figure which shows 2nd Embodiment of the transmission-rate evaluation system of this invention. 第２の実施形態における処理手順を示す図。The figure which shows the process sequence in 2nd Embodiment. シミュレーションにより基地局の設置場所を判定する方法を示す図。The figure which shows the method of determining the installation place of a base station by simulation. 実測により基地局の設置場所を判定する方法を示す図。The figure which shows the method of determining the installation place of a base station by actual measurement.

符号の説明Explanation of symbols

１ 通信エリアの境界
２ 壁
３ 障害物
４ 基地局
５ 伝送速度の評価場所
６ 伝送速度分布境界線
７ 無線通信端末
８ 測定経路
９ 測定ポイント
１０，１２ センサ
１１，１３ 制御部
DESCRIPTION OF SYMBOLS 1 Boundary of communication area 2 Wall 3 Obstacle 4 Base station 5 Transmission speed evaluation place 6 Transmission speed distribution boundary line 7 Wireless communication terminal 8 Measurement path 9 Measurement point 10, 12 Sensor 11, 13 Controller

Claims (27)

無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価システムにおいて、
第１の送信指示によって前記無線通信システムで使用される周波数帯の無線信号を送信する少なくとも１つの基地局と、
前記通信エリア内に設置され、第２の送信指示によって前記基地局から送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信する複数のセンサと、
前記第１の送信指示および前記第２の送信指示を行い、前記第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データを受信する制御部とを備え、
前記制御部は、前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記各センサから送信された識別符号と受信電界強度測定データから前記通信エリア内の位置に対する伝送速度を判定する構成である
ことを特徴とする伝送速度評価システム。 In a transmission rate evaluation system for determining a transmission rate according to the installation location of a base station in a communication area of a wireless communication system,
At least one base station that transmits a radio signal of a frequency band used in the radio communication system according to a first transmission instruction;
A plurality of sensors that are installed in the communication area, measure the received electric field strength of the radio signal transmitted from the base station according to a second transmission instruction, and transmit received electric field strength measurement data together with a unique identification code;
A control unit that performs the first transmission instruction and the second transmission instruction, and that receives the identification code transmitted from the sensor that has performed the second transmission instruction and the received electric field strength measurement data;
Based on the positional information corresponding to the identification code of each sensor and the correlation data of the transmission rate corresponding to the received electric field strength measurement data, the control unit uses the identification code and the received electric field strength measurement data transmitted from each sensor. A transmission rate evaluation system characterized by determining a transmission rate for a position in the communication area. 請求項１に記載の伝送速度評価システムにおいて、
前記制御部は、複数の基地局に対して同時に第１の送信指示を行う構成であり、
前記センサは、前記複数の基地局から送信された無線信号を受信して受信電界強度を測定する構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to claim 1,
The control unit is configured to issue a first transmission instruction to a plurality of base stations simultaneously,
The transmission rate evaluation system, wherein the sensor is configured to receive radio signals transmitted from the plurality of base stations and measure received electric field strength. 請求項１または請求項２に記載の伝送速度評価システムにおいて、
前記制御部は、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to claim 1 or 2,
The control unit is configured to estimate a transmission rate at a place where the sensor is not installed from a nearby sensor position and received electric field strength measurement data. 無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価システムにおいて、
前記通信エリア内に設置され、第１の送信指示によって前記無線通信システムで使用される周波数帯の無線信号を送信し、第２の送信指示によって他のセンサから送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信する複数のセンサと、
前記複数のセンサのうち少なくとも１つのセンサに対して前記第１の送信指示を行い、他のセンサに対して前記第２の送信指示を行い、前記第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データを受信する制御部とを備え、
前記制御部は、前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データから、前記通信エリア内の位置に対する伝送速度を判定する構成である
ことを特徴とする伝送速度評価システム。 In a transmission rate evaluation system for determining a transmission rate according to the installation location of a base station in a communication area of a wireless communication system,
Received electric field strength of a radio signal that is installed in the communication area, transmits a radio signal in a frequency band used in the radio communication system by a first transmission instruction, and is transmitted from another sensor by a second transmission instruction. A plurality of sensors that transmit received field strength measurement data together with a unique identification code,
The first transmission instruction is given to at least one of the plurality of sensors, the second transmission instruction is given to another sensor, and the second transmission instruction is sent from the sensor that has given the second transmission instruction. And a control unit for receiving the received electric field strength measurement data.
The control unit, based on position information corresponding to the identification code of each sensor and transmission rate correlation data corresponding to the received electric field strength measurement data, the identification code transmitted from the sensor that has given the second transmission instruction The transmission rate evaluation system is characterized in that the transmission rate for the position in the communication area is determined from the received electric field strength measurement data. 請求項４に記載の伝送速度評価システムにおいて、
前記制御部は、前記第１の送信指示を行うセンサを変えて、前記通信エリア内の伝送速度の判定を複数回行う構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to claim 4,
The transmission rate evaluation system, wherein the control unit is configured to determine a transmission rate in the communication area a plurality of times by changing a sensor that performs the first transmission instruction. 請求項４に記載の伝送速度評価システムにおいて、
前記制御部は、複数のセンサに対して同時に前記第１の送信指示を行う構成であり、
前記第２の送信指示を受けたセンサは、前記複数のセンサから送信された無線信号を受信して受信電界強度を測定する構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to claim 4,
The control unit is configured to simultaneously instruct the first transmission to a plurality of sensors,
The sensor that has received the second transmission instruction is configured to receive radio signals transmitted from the plurality of sensors and to measure the received electric field strength. 請求項４〜６のいずれかに記載の伝送速度評価システムにおいて、
前記制御部は、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to any one of claims 4 to 6,
The control unit is configured to estimate a transmission rate at a place where the sensor is not installed from a nearby sensor position and received electric field strength measurement data. 請求項１〜７のいずれかに記載の伝送速度評価システムにおいて、
前記制御部は、前記通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成する構成である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to any one of claims 1 to 7,
The transmission rate evaluation system, wherein the control unit is configured to create a transmission rate evaluation map representing a distribution in which positions in the communication area and transmission rates are associated with each other. 請求項１〜７のいずれかに記載の伝送速度評価システムにおいて、
前記第１の送信指示および第２の送信指示の信号と、前記各センサの識別符号および受信電界強度測定データの信号は、前記無線通信システムで使用される周波数帯と異なる周波数帯の無線信号である
ことを特徴とする伝送速度評価システム。 In the transmission rate evaluation system according to any one of claims 1 to 7,
The signals of the first transmission instruction and the second transmission instruction, the identification code of each sensor and the signal of the received electric field strength measurement data are radio signals in a frequency band different from the frequency band used in the radio communication system. A transmission rate evaluation system characterized by that. 無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価方法において、
制御部は、少なくとも１つの基地局に対して第１の送信指示を行い、前記通信エリア内に設置された複数のセンサに対して第２の送信指示を行い、
前記第１の送信指示を受けた基地局は、前記無線通信システムで使用される周波数帯の無線信号を送信し、
前記第２の送信指示を受けたセンサは、前記基地局から送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信し、
前記制御部は、前記第２の送信指示を行った各センサから送信された識別符号と受信電界強度測定データを受信し、前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記各センサから送信された識別符号と受信電界強度測定データから前記通信エリア内の位置に対する伝送速度を判定する
ことを特徴とする伝送速度評価方法。 In a transmission rate evaluation method for determining a transmission rate according to the installation location of a base station in a communication area of a wireless communication system,
The control unit issues a first transmission instruction to at least one base station, issues a second transmission instruction to a plurality of sensors installed in the communication area,
The base station that has received the first transmission instruction transmits a radio signal in a frequency band used in the radio communication system,
The sensor that has received the second transmission instruction measures the received electric field strength of the radio signal transmitted from the base station, and transmits the received electric field strength measurement data together with a unique identification code,
The control unit receives an identification code and reception field strength measurement data transmitted from each sensor that has given the second transmission instruction, and receives position information corresponding to the identification code of each sensor and reception field strength measurement data. A transmission rate evaluation method for determining a transmission rate for a position in the communication area from the identification code transmitted from each sensor and the received electric field strength measurement data based on correlation data of the transmission rate corresponding to. 請求項１０に記載の伝送速度評価方法において、
前記制御部は、複数の基地局に対して同時に第１の送信指示を行い、
前記第２の送信指示を受けたセンサは、前記複数の基地局から送信された無線信号を受信して受信電界強度を測定する
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to claim 10,
The control unit issues a first transmission instruction to a plurality of base stations simultaneously,
The sensor that has received the second transmission instruction receives radio signals transmitted from the plurality of base stations and measures received electric field strength. 請求項１０または請求項１１に記載の伝送速度評価方法において、
前記制御部は、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to claim 10 or 11,
The control unit estimates a transmission speed at a place where the sensor is not installed from a position of a nearby sensor and received electric field strength measurement data. 無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価方法において、
制御部は、前記通信エリア内に設置された複数のセンサのうち少なくとも１つのセンサに対して前記第１の送信指示を行い、他のセンサに対して前記第２の送信指示を行い、
前記第１の送信指示を受けたセンサは、前記無線通信システムで使用される周波数帯の無線信号を送信し、
前記第２の送信指示を受けた他のセンサは、前記第１の送信指示を受けたセンサから送信された無線信号の受信電界強度を測定し、それぞれ固有の識別符号とともに受信電界強度測定データを送信し、
前記制御部は、前記第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データを受信し、前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記第２の送信指示を行ったセンサから送信された識別符号と受信電界強度測定データから、前記通信エリア内の位置に対する伝送速度を判定する
ことを特徴とする伝送速度評価方法。 In a transmission rate evaluation method for determining a transmission rate according to the installation location of a base station in a communication area of a wireless communication system,
The control unit performs the first transmission instruction to at least one sensor among the plurality of sensors installed in the communication area, and performs the second transmission instruction to the other sensors.
The sensor that has received the first transmission instruction transmits a radio signal of a frequency band used in the radio communication system,
The other sensor that has received the second transmission instruction measures the received electric field strength of the radio signal transmitted from the sensor that has received the first transmission instruction, and receives the received electric field strength measurement data together with a unique identification code. Send
The control unit receives the identification code and the received electric field strength measurement data transmitted from the sensor that has given the second transmission instruction, and receives the position information corresponding to the identification code of each sensor and the received electric field strength measurement data. Based on the correlation data of the corresponding transmission rate, the transmission rate for the position in the communication area is determined from the identification code transmitted from the sensor that has given the second transmission instruction and the received electric field strength measurement data. Transmission rate evaluation method. 請求項１３に記載の伝送速度評価方法において、
前記制御部は、前記第１の送信指示を行うセンサを変えて、前記通信エリア内の伝送速度の判定を複数回行う
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to claim 13,
The said control part changes the sensor which performs said 1st transmission instruction | indication, and determines the transmission rate in the said communication area in multiple times. The transmission rate evaluation method characterized by the above-mentioned. 請求項１３に記載の伝送速度評価方法において、
前記制御部は、複数のセンサに対して同時に前記第１の送信指示を行い、
前記第２の送信指示を受けたセンサは、前記複数のセンサから送信された無線信号を受信して受信電界強度を測定する
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to claim 13,
The control unit performs the first transmission instruction simultaneously to a plurality of sensors,
The sensor that has received the second transmission instruction receives the radio signals transmitted from the plurality of sensors and measures the received electric field strength. 請求項１３〜１５のいずれかに記載の伝送速度評価方法において、
前記制御部は、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to any one of claims 13 to 15,
The control unit estimates a transmission speed at a place where the sensor is not installed from a position of a nearby sensor and received electric field strength measurement data. 請求項１０〜１６のいずれかに記載の伝送速度評価方法において、
前記制御部は、前記通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成する
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to any one of claims 10 to 16,
The transmission rate evaluation method, wherein the control unit creates a transmission rate evaluation map representing a distribution in which positions in the communication area and transmission rates are associated with each other. 請求項１０〜１６のいずれかに記載の伝送速度評価方法において、
前記第１の送信指示および第２の送信指示の信号と、前記各センサの識別符号および受信電界強度測定データの信号は、前記無線通信システムで使用される周波数帯と異なる周波数帯の無線信号である
ことを特徴とする伝送速度評価方法。 In the transmission rate evaluation method according to any one of claims 10 to 16,
The signals of the first transmission instruction and the second transmission instruction, the identification code of each sensor and the signal of the received electric field strength measurement data are radio signals in a frequency band different from the frequency band used in the radio communication system. A transmission rate evaluation method characterized by that. 無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価プログラムにおいて、
少なくとも１つの基地局に対して第１の送信指示を行い、前記通信エリア内に設置された複数のセンサに対して第２の送信指示を行う第１のステップと、
前記第１の送信指示を受けた基地局から送信された無線信号の受信電界強度を前記第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する第２のステップと、
前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記各センサから送信された識別符号と受信電界強度測定データから前記通信エリア内の位置に対する伝送速度を判定する第３のステップと
を有することを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program for determining the transmission rate according to the installation location of the base station in the communication area of the wireless communication system,
A first step of performing a first transmission instruction to at least one base station and performing a second transmission instruction to a plurality of sensors installed in the communication area;
Each sensor receiving the second transmission instruction measures the received electric field strength of the radio signal transmitted from the base station that has received the first transmission instruction, and the identification code and the received electric field intensity transmitted from each sensor. A second step of receiving measurement data;
Based on the positional information corresponding to the identification code of each sensor and the correlation data of the transmission speed corresponding to the received electric field strength measurement data, the identification code and the received electric field strength measurement data transmitted from each sensor And a third step of determining a transmission rate with respect to the position. 請求項１９に記載の伝送速度評価プログラムにおいて、
前記第１のステップは、前記複数の基地局に対して同時に第１の送信指示を行い、
前記第２のステップは、前記第１の送信指示を受けた複数の基地局から送信された無線信号の受信電界強度を前記第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to claim 19,
In the first step, a first transmission instruction is simultaneously given to the plurality of base stations,
In the second step, each sensor receiving the second transmission instruction measures the received electric field strength of the radio signal transmitted from the plurality of base stations receiving the first transmission instruction, and from each sensor. A transmission rate evaluation program characterized by receiving a transmitted identification code and received field strength measurement data. 請求項１９または請求項２０に記載の伝送速度評価プログラムにおいて、
前記第３のステップは、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to claim 19 or 20,
The transmission rate evaluation program characterized in that the third step estimates a transmission rate at a place where the sensor is not installed from a position of a nearby sensor and received electric field strength measurement data. 無線通信システムの通信エリア内で基地局の設置場所に応じた伝送速度を判定する伝送速度評価プログラムにおいて、
前記通信エリア内に設置された複数のセンサのうち少なくとも１つのセンサに対して第１の送信指示を行い、他のセンサに対して第２の送信指示を行う第１のステップと、
前記第１の送信指示を受けたセンサから送信された無線信号の受信電界強度を前記第２の送信指示を受けた他の各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する第２のステップと、
前記各センサの識別符号に対応する位置情報と、受信電界強度測定データに対応する伝送速度の相関データに基づき、前記第２の送信指示を受けたセンサから送信された識別符号と受信電界強度測定データから、前記通信エリア内の位置に対する伝送速度を判定する第３のステップと
を有することを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program for determining the transmission rate according to the installation location of the base station in the communication area of the wireless communication system,
A first step of giving a first transmission instruction to at least one of a plurality of sensors installed in the communication area and a second transmission instruction to another sensor;
Each of the other sensors receiving the second transmission instruction measures the reception field strength of the radio signal transmitted from the sensor that has received the first transmission instruction, and the identification code and the reception electric field transmitted from each sensor. A second step of receiving intensity measurement data;
Based on the positional information corresponding to the identification code of each sensor and the correlation data of the transmission rate corresponding to the received electric field strength measurement data, the identification code transmitted from the sensor that has received the second transmission instruction and the received electric field strength measurement And a third step of determining a transmission rate for the position in the communication area from the data. 請求項２２に記載の伝送速度評価プログラムにおいて、
前記第１〜第３のステップは、前記第１の送信指示を行うセンサを変えて、前記通信エリア内の伝送速度の判定を複数回行う
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to claim 22,
In the first to third steps, a transmission rate evaluation program is characterized in that a transmission rate in the communication area is determined a plurality of times by changing a sensor that performs the first transmission instruction. 請求項２２に記載の伝送速度評価プログラムにおいて、
前記第１のステップは、複数のセンサに対して同時に前記第１の送信指示を行い、
前記第２のステップは、前記第１の送信指示を受けた複数のセンサから送信された無線信号の受信電界強度を前記第２の送信指示を受けた各センサが測定し、その各センサから送信された識別符号と受信電界強度測定データを受信する
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to claim 22,
In the first step, the first transmission instruction is simultaneously given to a plurality of sensors,
In the second step, each sensor that has received the second transmission instruction measures the received electric field strength of the radio signal transmitted from the plurality of sensors that has received the first transmission instruction, and the transmission is transmitted from each sensor. A transmission rate evaluation program characterized by receiving the identification code and received electric field strength measurement data. 請求項２２〜２４のいずれかに記載の伝送速度評価プログラムにおいて、
前記第３のステップは、前記センサが設置されていない場所における伝送速度について、近傍のセンサの位置と受信電界強度測定データから推定する
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to any one of claims 22 to 24,
The transmission rate evaluation program characterized in that the third step estimates a transmission rate at a place where the sensor is not installed from a position of a nearby sensor and received electric field strength measurement data. 請求項１９〜２５のいずれかに記載の伝送速度評価プログラムにおいて、
前記第３のステップは、前記通信エリア内の位置と伝送速度を対応づけた分布を表す伝送速度評価マップを作成する
ことを特徴とする伝送速度評価プログラム。 In the transmission rate evaluation program according to any one of claims 19 to 25,
The transmission rate evaluation program characterized in that the third step creates a transmission rate evaluation map representing a distribution in which positions in the communication area and transmission rates are associated with each other. 請求項１９〜２６に記載の伝送速度評価プログラムを記録した記録媒体。
27. A recording medium on which the transmission rate evaluation program according to claim 19 is recorded.
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