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WO2024004053A1 - Quality estimation device, quality estimation method, and program - Google Patents

Quality estimation device, quality estimation method, and program Download PDF

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Publication number
WO2024004053A1
WO2024004053A1 PCT/JP2022/025842 JP2022025842W WO2024004053A1 WO 2024004053 A1 WO2024004053 A1 WO 2024004053A1 JP 2022025842 W JP2022025842 W JP 2022025842W WO 2024004053 A1 WO2024004053 A1 WO 2024004053A1
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WIPO (PCT)
Prior art keywords
quality
history
cell configuration
terminal
communication
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PCT/JP2022/025842
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French (fr)
Japanese (ja)
Inventor
憲一 河村
尚希 澁谷
元晴 佐々木
貴庸 守山
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日本電信電話株式会社
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Priority to PCT/JP2022/025842 priority Critical patent/WO2024004053A1/en
Publication of WO2024004053A1 publication Critical patent/WO2024004053A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to a quality estimation device, a quality estimation method, and a program.
  • a communication area is formed with a multi-band or multi-cell configuration.
  • One terminal can achieve high-speed communication by bundling and using multiple frequency bands at the same time, such as carrier aggregation (CA), which uses cells in multiple bands at the same time, and dual connectivity (DU). It can be realized. Furthermore, when the terminal recognizes a plurality of available cells, it selects the cell to be used according to instructions from the base station and performs handover.
  • CA carrier aggregation
  • DU dual connectivity
  • the cell to be used is determined by the control of the base station or network based on various factors such as the degree of network congestion and quality report information from terminals. Therefore, even if the terminals are used at the same location, for example, the base stations used are often different from each other, and the base stations may be frequently switched during use. Furthermore, addition or deletion of cells by CA, DU, etc. occurs fluidly.
  • the communication speed when communicating with a base station is estimated based on the received power of a specific signal from the base station (for example, Non-Patent Document 1).
  • a heat map is created in advance by simulation or the use of AI, etc., and the radio field strength is estimated (for example, non-patent document 2 ).
  • the disclosed technology aims to improve the accuracy of estimating the communication quality of a terminal in a wireless communication network.
  • the disclosed technology includes: a cell configuration history data acquisition unit configured to acquire data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals; , an estimated quality request reception unit configured to receive information indicating a location from a terminal and accept a request for estimating communication quality at the location; and the one or more of the one or more included in the data indicating the history of the cell configuration.
  • data indicating the history of the cell configuration is extracted based on information indicating the location of the terminal, and communication quality is requested to be estimated based on the extracted data indicating the history of the cell configuration at the location of the terminal
  • a quality estimating unit configured to estimate the quality of.
  • the accuracy of estimating the communication quality of a terminal in a wireless communication network can be improved.
  • FIG. 1 is a diagram showing an example of a configuration of a quality estimation system according to an embodiment of the present invention.
  • 1 is a diagram showing an example of a functional configuration of a quality estimating device according to an embodiment of the present invention.
  • FIG. 3 is a diagram for explaining an overview of a quality estimation function according to an embodiment of the present invention. It is a figure showing an example of cell configuration history data concerning an embodiment of the present invention. It is a flowchart which shows an example of the flow of quality estimation processing concerning an embodiment of the present invention.
  • 1 is a diagram showing an example of a hardware configuration of a computer.
  • the configuration of the cell to be used by the terminal is estimated based on cell configuration history data indicating the actual values of cell configurations used by the terminal in the past, and the communication quality (for example, throughput in L3) is estimated.
  • the communication quality for example, throughput in L3
  • FIG. 1 is a diagram showing an example of the configuration of a quality estimation system according to an embodiment of the present invention.
  • the quality estimation system 1 includes a quality estimation device 10 and a terminal 20.
  • the quality estimating device 10 and the terminal 20 are communicably connected to each other using a wired or wireless communication method.
  • the quality estimating device 10 receives cell configuration history data and estimated quality request information from the terminal 20 and transmits the estimated quality information to the terminal 20.
  • the cell configuration history data is data indicating the history of cell configurations selected by the terminal 20.
  • Estimated quality request information is information that requests quality estimation, and includes information indicating the location of the terminal to be estimated, support band indicating the frequency band supported by the terminal, and maximum number of aggregations indicating the maximum number of aggregations supported by the terminal. Contains information such as.
  • the quality estimating device 10 estimates quality based on the above-mentioned received information and generates estimated quality information.
  • the estimated quality information is information indicating the estimation result of the communication quality in terms of the terminal position, support band, maximum number of aggregations, etc. corresponding to the estimated quality request information.
  • the quality estimation system 1 may include multiple terminals 20.
  • the quality estimating device 10 may estimate the communication quality based on the history of the cell configuration of the terminal 20 that is different from the terminal 20 that requested quality estimation.
  • FIG. 2 is a diagram showing an example of a functional configuration of a quality estimation device according to an embodiment of the present invention.
  • the quality estimation device 10 includes a cell configuration history data acquisition unit 11, a storage unit 12, an estimated quality request reception unit 13, a quality estimation unit 14, a cell configuration history management unit 15, a quality calculation unit 16, and an estimated quality An output unit 17 is provided.
  • the cell configuration history data acquisition unit 11 acquires cell configuration history data from the terminal 20 and stores it in the storage unit 12.
  • the storage unit 12 stores cell configuration history data.
  • the estimated quality request receiving unit 13 receives estimated quality request information from the terminal 20 to accept a quality estimation request.
  • the quality estimation unit 14 acquires cell configuration history data from the cell configuration history management unit 15 and extracts cell configuration history data corresponding to the terminal position, terminal support band, and maximum aggregation number included in the estimated quality request information. do. Then, an estimated cell configuration is calculated based on the extracted cell configuration history data. In addition, the quality estimation unit 14 obtains the throughput of each base station included in the estimated cell configuration from the quality calculation unit 16, and based on the obtained throughput of each base station, the quality estimation unit 14 calculates the Calculate the estimated throughput at the location.
  • the cell configuration history management unit 15 acquires the cell configuration history data stored in the storage unit 12 based on instructions from the quality estimation unit 14 and delivers it to the quality estimation unit 14.
  • the quality calculation unit 16 calculates the throughput of each base station included in the estimated cell configuration based on instructions from the quality estimation unit 14. For example, the quality calculation unit 16 may calculate the throughput for each base station using conventional techniques such as radio wave propagation simulation and conversion formulas.
  • the estimated quality output unit 17 transmits information indicating the quality estimated by the quality estimation unit 14 to the terminal 20 as estimated quality information.
  • FIG. 3 is a diagram for explaining an overview of the quality estimation function according to the embodiment of the present invention.
  • An outline of the quality estimation function by the quality estimation device 10 is as follows.
  • the quality estimating device 10 acquires cell configuration history data, extracts cell configuration history data corresponding to the terminal position, terminal support band, and maximum aggregation number, and calculates the estimated cell configuration.
  • the quality estimating device 10 also calculates the throughput for each base station using, for example, conventional technology.
  • the quality estimating device 10 then calculates the estimated throughput at the specified terminal position and outputs it as estimated quality information.
  • FIG. 4 is a diagram showing an example of cell configuration history data according to the embodiment of the present invention.
  • the cell configuration history data includes, as items, location information, the support band of the terminal, the maximum number of aggregations of the terminal, and the ID of the band and base station actually used.
  • the value of the item “location information” indicates the location of the terminal when each cell configuration is selected.
  • the item “location information” may include, for example, latitude, longitude, altitude, etc. as information elements.
  • the value of the item “terminal support band” indicates the frequency band supported by the terminal when each cell configuration is selected.
  • the item “terminal support band” has, for example, the frequency band supported by the terminal (Band1, Band3, Band42, etc.) as an information element, and the value of the supported frequency band is " ⁇ ", and the value of the unsupported frequency band is " ⁇ ".
  • the value is "-”.
  • the second entry in FIG. 4 indicates that Band 1 and Band 42 are supported and Band 3 is not supported.
  • the value of the item "Maximum number of aggregations for a terminal” indicates the maximum number of aggregations supported by the terminal when each cell configuration is selected.
  • the item "ID of band and base station actually used” indicates the combination of band and base station as the selected cell configuration. For example, in the first entry in FIG. 4, Band 1 is selected for communication with the base station with base station ID "101", and Band 3 is selected for communication with the base station with base station ID "23". It is shown that.
  • the cell configuration history data acquisition unit 11 acquires cell configuration history data from the terminal 20 and stores it in the storage unit 12.
  • the storage unit 12 stores cell configuration history data.
  • the terminal 20 may acquire the cell configuration history data by a notification from the terminal 20 each time the terminal 20 selects a cell configuration, or at a prescribed period such as once a day. Cell configuration history data for periods between cycles may be acquired.
  • FIG. 5 is a flowchart illustrating an example of the flow of quality estimation processing according to the embodiment of the present invention.
  • the estimated quality request receiving unit 13 receives estimated quality request information including the location of the terminal, the support band of the terminal, and the maximum number of aggregations (step S101).
  • the quality estimation unit 14 extracts cell configuration history data D1 via the cell configuration history management unit 15 based on the terminal position included in the estimated quality request information (step S102). For example, the quality estimating unit 14 uses a predefined threshold R[m] to calculate the history of cell configurations indicating terminal positions within a radius R[m] or less from the terminal position. It may be extracted as history data D1.
  • the quality estimation unit 14 further extracts cell configuration history data D2 corresponding to the support band of the terminal and the maximum number of aggregations from the extracted cell configuration history data D1 (step S103). For example, the quality estimation unit 14 may extract the history of cell configurations with the same terminal support band and the same maximum aggregation number as the cell configuration history data D2.
  • the quality estimation unit 14 calculates the throughput estimated at the terminal position based on the throughput of the top n patterns calculated for each base station (step S106). For example, the estimated throughput is calculated using the following equation (1).
  • the estimated quality output unit 17 outputs the calculated throughput as estimated quality information (step S107).
  • the throughput in the embodiments described above is an example of information indicating communication quality, and other information may be used.
  • the information indicating communication quality may be received power or the like.
  • the quality estimating device 10 according to this embodiment is realized, for example, by the hardware configuration of a computer 500 shown in FIG. 6.
  • the computer 500 shown in FIG. 6 includes an input device 501, a display device 502, an external I/F 503, a communication I/F 504, a processor 505, and a memory device 506. Each of these pieces of hardware is communicably connected via a bus 507.
  • the input device 501 is, for example, a keyboard, a mouse, a touch panel, or the like.
  • the display device 502 is, for example, a display. Note that the computer 500 does not need to have at least one of the input device 501 and the display device 502.
  • the external I/F 503 is an interface with an external device such as a recording medium 503a.
  • a recording medium 503a examples include a CD (Compact Disc), a DVD (Digital Versatile Disk), an SD memory card (Secure Digital memory card), and a USB (Universal Serial Bus) memory card.
  • the communication I/F 504 is an interface for performing data communication with other devices, equipment, systems, etc.
  • the processor 505 is, for example, various arithmetic devices such as a CPU.
  • the memory device 506 is, for example, various storage devices such as an HDD, an SSD, a RAM (Random Access Memory), a ROM (Read Only Memory), and a flash memory.
  • the quality estimating device 10 can implement the various processes described above by having the hardware configuration of the computer 500 shown in FIG.
  • the hardware configuration of the computer 500 shown in FIG. 6 is an example, and the computer 500 may have another hardware configuration.
  • computer 500 may have multiple processors 505 and multiple memory devices 506.
  • the quality estimating device 10 is realized by reading a program for causing the computer 500 to execute each of the processes described above, and executing the processes specified in the program.
  • the program may be recorded on the recording medium 503a or the like, or may be provided through a network.
  • the communication quality at a designated position is estimated based on the history of the cell configuration selected by the terminal 20, and is output to the terminal 20.
  • the terminal 20 can obtain communication quality estimation results based on the estimated cell configuration, even if it is unknown how the cell configuration will be controlled at the future location of the terminal, for example. Can be done. That is, the accuracy of estimating the communication quality of a terminal in a wireless communication network can be improved.
  • This specification describes at least a quality estimation device, a quality estimation method, and a program described in each section below.
  • (Section 1) a cell configuration history data acquisition unit configured to acquire data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals; an estimated quality request receiving unit configured to receive information indicating a location from a terminal and accept a request for estimating communication quality at the location; Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration.
  • the data indicating the history of the cell configuration includes a history of selection of a combination of base stations and frequency bands as the cell configuration, further comprising a quality calculation unit configured to calculate communication quality for each base station, The quality estimation unit is configured to estimate the quality of communication at the location of the terminal that has requested estimation of communication quality, based on the calculated communication quality for each base station.
  • the quality estimation device according to item 1.
  • the data indicating a history of the cell configuration includes a history indicating a frequency band and a maximum number of aggregations supported by the one or more terminals
  • the estimated quality request reception unit is configured to receive information indicating a frequency band and a maximum number of aggregations supported by the terminal that has requested communication quality estimation,
  • the quality estimating unit extracts data indicating the history of the cell configuration based on information indicating the frequency band and maximum number of aggregations supported by the terminal that has requested communication quality estimation, and calculates the data of the extracted cell configuration. configured to estimate the quality of communication at the location of the terminal that requested estimation of communication quality based on data indicating history;
  • the quality estimation device according to item 1 or 2.
  • the quality estimation unit indicates a history of frequently appearing cell configurations from data indicating a history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration. configured to extract data and estimate the quality of communication at the location of the terminal that has requested estimation of communication quality based on the extracted data indicating the history of the cell configuration;
  • the quality estimation device according to any one of the first to third terms.
  • a computer-implemented quality estimation method comprising: acquiring data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals; receiving information indicating a location from a terminal and accepting a request for estimating communication quality at the location; Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration. estimating the quality of communication at the location of the terminal that has requested estimation of communication quality; Quality estimation method.
  • Quality Estimation System 10 Quality Estimation Device 11 Cell Configuration History Data Acquisition Unit 12 Storage Unit 13 Estimated Quality Request Reception Unit 14 Quality Estimation Unit 15 Cell Configuration History Management Unit 16 Quality Calculation Unit 17 Estimated Quality Output Unit 20 Terminal 500 Computer 501 Input Device 502 Display device 503 External I/F 503a Recording medium 504 Communication I/F 505 processor 506 memory device 507 bus

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Abstract

This quality estimation device comprises: a cell configuration history data acquiring unit configured to acquire data which includes information indicating the position of one or more terminals, and which indicates a history of cell configurations selected by the one or more terminals; an estimated-quality request accepting unit configured to receive position-indicating information from a terminal, and to accept a request for estimation of the communication quality at the position; and a quality estimation unit configured to extract the data indicating the history of cell configurations on the basis of the information indicating the positions of the one or more terminals and included in the data indicating the history of cell configurations, and to estimate, on the basis of the extracted data indicating the history of cell configurations, the communication quality at the position of the terminal having requested the estimation of the communication quality.

Description

品質推定装置、品質推定方法、及びプログラムQuality estimation device, quality estimation method, and program
　本発明は、品質推定装置、品質推定方法、及びプログラムに関する。 The present invention relates to a quality estimation device, a quality estimation method, and a program.
　セルラー方式による無線通信において、マルチバンドまたはマルチセル構成の通信エリア形成が行われている。一つの端末は、複数のバンドのセルを同時に使うキャリアアグリゲーション（ＣＡ：Carrier Aggregation）、デュアルコネクティビティ（ＤＵ：Dual Connectivity）等のように複数の周波数帯を同時に束ねて使用することによって、高速通信を実現させることができる。また、端末が複数の利用可能なセルを認識すると、基地局からの指示により利用するセルを選択し、ハンドオーバを行う。 In wireless communication using the cellular system, a communication area is formed with a multi-band or multi-cell configuration. One terminal can achieve high-speed communication by bundling and using multiple frequency bands at the same time, such as carrier aggregation (CA), which uses cells in multiple bands at the same time, and dual connectivity (DU). It can be realized. Furthermore, when the terminal recognizes a plurality of available cells, it selects the cell to be used according to instructions from the base station and performs handover.
　セルラー方式による無線通信では、基地局またはネットワーク側の制御によって、ネットワークの混雑度、端末からの品質報告情報など様々な要因に基づいて、利用するセルが決定される。従って、例えば同じ場所で端末を使用したとしても、利用する基地局が互いに異なることが多く、また、使用中に頻繁に基地局が切り替わることも発生する。更に、ＣＡ、ＤＵ等によるセルの追加または削除が流動的に発生する。 In wireless communication using the cellular method, the cell to be used is determined by the control of the base station or network based on various factors such as the degree of network congestion and quality report information from terminals. Therefore, even if the terminals are used at the same location, for example, the base stations used are often different from each other, and the base stations may be frequently switched during use. Furthermore, addition or deletion of cells by CA, DU, etc. occurs fluidly.
　このような環境では、セルラー方式による無線通信の通信品質(スループット)がどの程度得られるかを把握することは、端末またはユーザにとって困難となる。そこで、一般的に無線通信では、基地局からの特定の信号の受信電力を元に、その基地局と通信した場合の通信速度を推定することが行われる(例えば非特許文献１)。また、自動運転等において、将来の移動位置における通信品質を推定する方法として、事前にシミュレーションあるいはＡＩの利用等によりヒートマップを作成し、電波強度を推定することが行われる(例えば非特許文献２)。 In such an environment, it is difficult for terminals or users to understand how much communication quality (throughput) can be obtained in wireless communication using the cellular method. Therefore, in general, in wireless communication, the communication speed when communicating with a base station is estimated based on the received power of a specific signal from the base station (for example, Non-Patent Document 1). In addition, in autonomous driving, etc., as a method for estimating the communication quality at a future moving position, a heat map is created in advance by simulation or the use of AI, etc., and the radio field strength is estimated (for example, non-patent document 2 ).
　従来の技術では、マルチバンドまたはマルチセル構成の通信エリアが形成され、ハンドオーバまたは同時利用が行われる環境において、端末以外の制御装置によってセルの選択が制御される場合、端末が将来の移動位置においてどのようにセルを選択または結合するかが変わるため、通信品質を精度良く推定することが困難であるという問題がある。 In conventional technology, when cell selection is controlled by a control device other than the terminal in an environment where a communication area with a multi-band or multi-cell configuration is formed and handover or simultaneous use is performed, it is difficult to determine where the terminal will move in the future. There is a problem in that it is difficult to accurately estimate communication quality because the selection or combination of cells changes.
　開示の技術は、無線通信ネットワークにおける端末の通信品質の推定精度を向上させることを目的とする。 The disclosed technology aims to improve the accuracy of estimating the communication quality of a terminal in a wireless communication network.
　開示の技術は、１または複数の端末の位置を示す情報を含み、前記１または複数の端末が選択したセル構成の履歴を示すデータを取得するように構成されているセル構成履歴データ取得部と、端末から位置を示す情報を受信して、前記位置における通信品質の推定要求を受け付けるように構成されている推定品質要求受付部と、前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づいて前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている品質推定部と、を備える品質推定装置である。 The disclosed technology includes: a cell configuration history data acquisition unit configured to acquire data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals; , an estimated quality request reception unit configured to receive information indicating a location from a terminal and accept a request for estimating communication quality at the location; and the one or more of the one or more included in the data indicating the history of the cell configuration. data indicating the history of the cell configuration is extracted based on information indicating the location of the terminal, and communication quality is requested to be estimated based on the extracted data indicating the history of the cell configuration at the location of the terminal A quality estimating unit configured to estimate the quality of.
　無線通信ネットワークにおける端末の通信品質の推定精度を向上させることができる。 The accuracy of estimating the communication quality of a terminal in a wireless communication network can be improved.
本発明の実施の形態に係る品質推定システムの構成の一例を示す図である。1 is a diagram showing an example of a configuration of a quality estimation system according to an embodiment of the present invention. 本発明の実施の形態に係る品質推定装置の機能構成の一例を示す図である。1 is a diagram showing an example of a functional configuration of a quality estimating device according to an embodiment of the present invention. 本発明の実施の形態に係る品質推定機能の概要について説明するための図である。FIG. 3 is a diagram for explaining an overview of a quality estimation function according to an embodiment of the present invention. 本発明の実施の形態に係るセル構成履歴データの一例を示す図である。It is a figure showing an example of cell configuration history data concerning an embodiment of the present invention. 本発明の実施の形態に係る品質推定処理の流れの一例を示すフローチャートである。It is a flowchart which shows an example of the flow of quality estimation processing concerning an embodiment of the present invention. コンピュータのハードウェア構成の一例を示す図である。1 is a diagram showing an example of a hardware configuration of a computer.
　以下、図面を参照して本発明の実施の形態（本実施の形態）を説明する。以下で説明する実施の形態は一例に過ぎず、本発明が適用される実施の形態は、以下の実施の形態に限られるわけではない。 Hereinafter, an embodiment of the present invention (this embodiment) will be described with reference to the drawings. The embodiments described below are merely examples, and embodiments to which the present invention is applied are not limited to the following embodiments.
　＜本実施の形態の概要＞
　本実施の形態では、過去に端末が利用したセルの構成の実績値を示すセル構成履歴データに基づいて、端末に利用させるセルの構成を推定し、通信品質（例えばＬ３におけるスループット）の推定を行う技術について説明する。 <Overview of this embodiment>
In this embodiment, the configuration of the cell to be used by the terminal is estimated based on cell configuration history data indicating the actual values of cell configurations used by the terminal in the past, and the communication quality (for example, throughput in L3) is estimated. Explain the techniques used.
　＜本実施の形態の全体構成＞
　図１は、本発明の実施の形態に係る品質推定システムの構成の一例を示す図である。品質推定システム１は、品質推定装置１０と端末２０とを備える。品質推定装置１０と端末２０とは、有線または無線の通信方式により、互いに通信可能に接続されている。 <Overall configuration of this embodiment>
FIG. 1 is a diagram showing an example of the configuration of a quality estimation system according to an embodiment of the present invention. The quality estimation system 1 includes a quality estimation device 10 and a terminal 20. The quality estimating device 10 and the terminal 20 are communicably connected to each other using a wired or wireless communication method.
　品質推定装置１０は、端末２０からセル構成履歴データおよび推定品質要求情報を受信して、端末２０に推定品質情報を送信する。セル構成履歴データは、端末２０において選択されたセル構成の履歴を示すデータである。推定品質要求情報は、品質の推定を要求する情報であって、推定したい端末の位置を示す情報、端末がサポートする周波数帯を示すサポートバンド、端末がサポートする最大のアグリゲーション数を示す最大アグリゲーション数等の情報を含む。 The quality estimating device 10 receives cell configuration history data and estimated quality request information from the terminal 20 and transmits the estimated quality information to the terminal 20. The cell configuration history data is data indicating the history of cell configurations selected by the terminal 20. Estimated quality request information is information that requests quality estimation, and includes information indicating the location of the terminal to be estimated, support band indicating the frequency band supported by the terminal, and maximum number of aggregations indicating the maximum number of aggregations supported by the terminal. Contains information such as.
　品質推定装置１０は、受信した上述の情報に基づいて品質を推定し、推定品質情報を生成する。推定品質情報は、推定品質要求情報に対応する端末の位置、サポートバンド、最大アグリゲーション数等における通信品質の推定結果を示す情報である。 The quality estimating device 10 estimates quality based on the above-mentioned received information and generates estimated quality information. The estimated quality information is information indicating the estimation result of the communication quality in terms of the terminal position, support band, maximum number of aggregations, etc. corresponding to the estimated quality request information.
　なお、品質推定システム１は、複数の端末２０を備えていてもよい。その場合、品質推定装置１０は、品質の推定を要求した端末２０とは異なる端末２０のセル構成の履歴に基づいて、通信品質を推定してもよい。 Note that the quality estimation system 1 may include multiple terminals 20. In that case, the quality estimating device 10 may estimate the communication quality based on the history of the cell configuration of the terminal 20 that is different from the terminal 20 that requested quality estimation.
　＜品質推定装置の機能構成＞
　図２は、本発明の実施の形態に係る品質推定装置の機能構成の一例を示す図である。品質推定装置１０は、セル構成履歴データ取得部１１と、記憶部１２と、推定品質要求受付部１３と、品質推定部１４と、セル構成履歴管理部１５と、品質計算部１６と、推定品質出力部１７と、を備える。 <Functional configuration of quality estimation device>
FIG. 2 is a diagram showing an example of a functional configuration of a quality estimation device according to an embodiment of the present invention. The quality estimation device 10 includes a cell configuration history data acquisition unit 11, a storage unit 12, an estimated quality request reception unit 13, a quality estimation unit 14, a cell configuration history management unit 15, a quality calculation unit 16, and an estimated quality An output unit 17 is provided.
　セル構成履歴データ取得部１１は、端末２０からセル構成履歴データを取得して、記憶部１２に格納する。記憶部１２は、セル構成履歴データを記憶する。推定品質要求受付部１３は、端末２０から推定品質要求情報を受信することによって、品質の推定要求を受け付ける。 The cell configuration history data acquisition unit 11 acquires cell configuration history data from the terminal 20 and stores it in the storage unit 12. The storage unit 12 stores cell configuration history data. The estimated quality request receiving unit 13 receives estimated quality request information from the terminal 20 to accept a quality estimation request.
　品質推定部１４は、セル構成履歴管理部１５からセル構成履歴データを取得して、推定品質要求情報に含まれる端末の位置、端末のサポートバンドおよび最大アグリゲーション数に対応するセル構成履歴データを抽出する。そして、抽出されたセル構成履歴データに基づいて、推定されるセル構成を算出する。また、品質推定部１４は、推定されるセル構成に含まれる基地局毎のスループットを品質計算部１６から取得して、取得した基地局毎のスループットに基づいて、推定品質要求情報に含まれる端末の位置において推定されるスループットを算出する。 The quality estimation unit 14 acquires cell configuration history data from the cell configuration history management unit 15 and extracts cell configuration history data corresponding to the terminal position, terminal support band, and maximum aggregation number included in the estimated quality request information. do. Then, an estimated cell configuration is calculated based on the extracted cell configuration history data. In addition, the quality estimation unit 14 obtains the throughput of each base station included in the estimated cell configuration from the quality calculation unit 16, and based on the obtained throughput of each base station, the quality estimation unit 14 calculates the Calculate the estimated throughput at the location.
　セル構成履歴管理部１５は、品質推定部１４からの指示に基づいて、記憶部１２に記憶されているセル構成履歴データを取得して、品質推定部１４に引き渡す。品質計算部１６は、品質推定部１４からの指示に基づいて、推定されるセル構成に含まれる基地局毎のスループットを計算する。品質計算部１６は、例えば、従来の技術を利用して、電波伝搬シミュレーション、換算式等により、基地局毎のスループットを算出してもよい。 The cell configuration history management unit 15 acquires the cell configuration history data stored in the storage unit 12 based on instructions from the quality estimation unit 14 and delivers it to the quality estimation unit 14. The quality calculation unit 16 calculates the throughput of each base station included in the estimated cell configuration based on instructions from the quality estimation unit 14. For example, the quality calculation unit 16 may calculate the throughput for each base station using conventional techniques such as radio wave propagation simulation and conversion formulas.
　推定品質出力部１７は、品質推定部１４によって推定された品質を示す情報を推定品質情報として端末２０に送信する。 The estimated quality output unit 17 transmits information indicating the quality estimated by the quality estimation unit 14 to the terminal 20 as estimated quality information.
　図３は、本発明の実施の形態に係る品質推定機能の概要について説明するための図である。品質推定装置１０による品質推定機能の概要は以下の通りである。 FIG. 3 is a diagram for explaining an overview of the quality estimation function according to the embodiment of the present invention. An outline of the quality estimation function by the quality estimation device 10 is as follows.
　すなわち、品質推定装置１０は、セル構成履歴データを取得して、端末の位置、端末のサポートバンドおよび最大アグリゲーション数に対応するセル構成履歴データを抽出し、推定されるセル構成を算出する。また、品質推定装置１０は、例えば従来技術を利用して、基地局毎のスループットを算出する。そして、品質推定装置１０は、指定される端末の位置において推定されるスループットを計算し、推定品質情報として出力する。 That is, the quality estimating device 10 acquires cell configuration history data, extracts cell configuration history data corresponding to the terminal position, terminal support band, and maximum aggregation number, and calculates the estimated cell configuration. The quality estimating device 10 also calculates the throughput for each base station using, for example, conventional technology. The quality estimating device 10 then calculates the estimated throughput at the specified terminal position and outputs it as estimated quality information.
　＜本実施の形態に係る情報＞
　次に、本実施の形態に係る情報について説明する。 <Information related to this embodiment>
Next, information related to this embodiment will be explained.
　図４は、本発明の実施の形態に係るセル構成履歴データの一例を示す図である。セル構成履歴データは、項目として、位置情報と、端末のサポートバンドと、端末の最大アグリゲーション数と、実際に使用されたバンドと基地局のＩＤと、を含む。 FIG. 4 is a diagram showing an example of cell configuration history data according to the embodiment of the present invention. The cell configuration history data includes, as items, location information, the support band of the terminal, the maximum number of aggregations of the terminal, and the ID of the band and base station actually used.
　項目「位置情報」の値は、各セル構成が選択された際の端末の位置を示している。項目「位置情報」は、例えば、情報要素として、緯度、経度、高度等を含んでもよい。 The value of the item "location information" indicates the location of the terminal when each cell configuration is selected. The item "location information" may include, for example, latitude, longitude, altitude, etc. as information elements.
　項目「端末のサポートバンド」の値は、各セル構成が選択された際の端末がサポートする周波数帯を示している。項目「端末のサポートバンド」は、例えば、情報要素として、当該端末がサポートする周波数帯（Ｂａｎｄ１、Ｂａｎｄ３、Ｂａｎｄ４２等）を有し、サポートする周波数帯の値は「〇」、サポートされない周波数帯の値は「－」となっている。例えば、図４の第二エントリは、Ｂａｎｄ１およびＢａｎｄ４２がサポートされ、Ｂａｎｄ３がサポートされないことを示している。 The value of the item "terminal support band" indicates the frequency band supported by the terminal when each cell configuration is selected. The item "terminal support band" has, for example, the frequency band supported by the terminal (Band1, Band3, Band42, etc.) as an information element, and the value of the supported frequency band is "〇", and the value of the unsupported frequency band is "〇". The value is "-". For example, the second entry in FIG. 4 indicates that Band 1 and Band 42 are supported and Band 3 is not supported.
　項目「端末の最大アグリゲーション数」の値は、各セル構成が選択された際の端末がサポートする最大のアグリゲーション数を示している。 The value of the item "Maximum number of aggregations for a terminal" indicates the maximum number of aggregations supported by the terminal when each cell configuration is selected.
　項目「実際に使用されたバンドと基地局のＩＤ」は、選択されたセル構成としてのバンドと基地局との組み合わせを示している。例えば、図４の第一エントリは、基地局ＩＤ「１０１」の基地局との間の通信においてＢａｎｄ１が選択され、基地局ＩＤ「２３」の基地局との間の通信においてＢａｎｄ３が選択されたことを示している。 The item "ID of band and base station actually used" indicates the combination of band and base station as the selected cell configuration. For example, in the first entry in FIG. 4, Band 1 is selected for communication with the base station with base station ID "101", and Band 3 is selected for communication with the base station with base station ID "23". It is shown that.
　＜本実施の形態に係る動作＞
　次に、品質推定装置１０の動作について図面を参照して説明する。セル構成履歴データ取得部１１は、端末２０からセル構成履歴データを取得して、記憶部１２に格納する。記憶部１２は、セル構成履歴データを記憶する。なお、端末２０は、端末２０がセル構成を選択する度に、端末２０からの通知によって、セル構成履歴データを取得してもよいし、例えば一日一回などの規定された周期ごとに、周期の間の期間におけるセル構成履歴データを取得してもよい。 <Operation according to this embodiment>
Next, the operation of the quality estimation device 10 will be explained with reference to the drawings. The cell configuration history data acquisition unit 11 acquires cell configuration history data from the terminal 20 and stores it in the storage unit 12. The storage unit 12 stores cell configuration history data. Note that the terminal 20 may acquire the cell configuration history data by a notification from the terminal 20 each time the terminal 20 selects a cell configuration, or at a prescribed period such as once a day. Cell configuration history data for periods between cycles may be acquired.
　図５は、本発明の実施の形態に係る品質推定処理の流れの一例を示すフローチャートである。推定品質要求受付部１３は、端末の位置、端末のサポートバンドおよび最大アグリゲーション数を含む推定品質要求情報を受信する（ステップＳ１０１）。 FIG. 5 is a flowchart illustrating an example of the flow of quality estimation processing according to the embodiment of the present invention. The estimated quality request receiving unit 13 receives estimated quality request information including the location of the terminal, the support band of the terminal, and the maximum number of aggregations (step S101).
　品質推定部１４は、セル構成履歴管理部１５を介して、推定品質要求情報に含まれる端末の位置に基づいてセル構成履歴データＤ１を抽出する（ステップＳ１０２）。例えば、品質推定部１４は、あらかじめ規定された閾値Ｒ［ｍ］を使用して、端末の位置から半径Ｒ［ｍ］以下の距離に含まれる端末の位置を示すセル構成の履歴を、セル構成履歴データＤ１として抽出してもよい。 The quality estimation unit 14 extracts cell configuration history data D1 via the cell configuration history management unit 15 based on the terminal position included in the estimated quality request information (step S102). For example, the quality estimating unit 14 uses a predefined threshold R[m] to calculate the history of cell configurations indicating terminal positions within a radius R[m] or less from the terminal position. It may be extracted as history data D1.
　続いて、品質推定部１４は、抽出されたセル構成履歴データＤ１から、端末のサポートバンドおよび最大アグリゲーション数に対応するセル構成履歴データＤ２をさらに抽出する（ステップＳ１０３）。例えば、品質推定部１４は、端末のサポートバンドおよび最大アグリゲーション数が同一のセル構成の履歴を、セル構成履歴データＤ２として抽出してもよい。 Subsequently, the quality estimation unit 14 further extracts cell configuration history data D2 corresponding to the support band of the terminal and the maximum number of aggregations from the extracted cell configuration history data D1 (step S103). For example, the quality estimation unit 14 may extract the history of cell configurations with the same terminal support band and the same maximum aggregation number as the cell configuration history data D2.
　次に、品質推定部１４は、抽出されたセル構成履歴データＤ２から、実際に使用されたバンドと基地局の組み合わせごとの出現頻度を計算し、上位ｎパターンの出現頻度ｆｉ（ｉ＝１，２，・・・，ｎ）を抽出する（ステップＳ１０４）。 Next, the quality estimation unit 14 calculates the appearance frequency for each combination of band and base station actually used from the extracted cell configuration history data D2, and calculates the appearance frequency f i (i=1 , 2, . . . , n) (step S104).
　続いて、品質計算部１６は、上位ｎパターンに含まれる基地局毎に、端末の位置におけるスループットを算出する（ステップＳ１０５）。例えば、品質計算部１６は、上位ｎパターンに出現している基地局ＩＤ毎に、推定品質要求情報に含まれる端末の位置におけるスループットを、基地局位置、送信電力等のデータ、電波伝搬推定および換算式等によって算出する。算出された基地局毎のスループットを、Ｔｊ（ｊ＝１，・・・，基地局数）とする。 Subsequently, the quality calculation unit 16 calculates the throughput at the terminal position for each base station included in the top n patterns (step S105). For example, for each base station ID appearing in the top n patterns, the quality calculation unit 16 calculates the throughput at the terminal location included in the estimated quality request information using data such as the base station location, transmission power, radio wave propagation estimation, and Calculated using a conversion formula, etc. Let the calculated throughput for each base station be T j (j=1, . . . , the number of base stations).
　品質推定部１４は、基地局毎に算出された上位ｎパターン分のスループットに基づいて、端末の位置において推定されるスループットを算出する（ステップＳ１０６）。例えば、推定されるスループットは、以下の式（１）によって算出される。 The quality estimation unit 14 calculates the throughput estimated at the terminal position based on the throughput of the top n patterns calculated for each base station (step S106). For example, the estimated throughput is calculated using the following equation (1).
　Σｎ（（Ｔｘ＋Ｔｙ＋・・・）×ｆｉ）・・・式（１）
　なお、上述の（Ｔｘ＋Ｔｙ＋・・・）の部分は、セルのアグリゲーション数分の項から構成される。 Σ n ((T x +T y +...)×f i )...Formula (1)
Note that the above-mentioned part (T x +T y +...) is composed of terms for the number of cell aggregations.
　推定品質出力部１７は、算出されたスループットを推定品質情報として出力する（ステップＳ１０７）。 The estimated quality output unit 17 outputs the calculated throughput as estimated quality information (step S107).
　なお、上述した実施の形態におけるスループットは、通信品質を示す情報の一例であって、他でもよい。例えば、通信品質を示す情報は、受信電力等であってもよい。 Note that the throughput in the embodiments described above is an example of information indicating communication quality, and other information may be used. For example, the information indicating communication quality may be received power or the like.
　＜ハードウェア構成＞
　最後に、本実施形態に係る品質推定装置１０のハードウェア構成について説明する。本実施形態に係る品質推定装置１０は、例えば、図６に示すコンピュータ５００のハードウェア構成により実現される。 <Hardware configuration>
Finally, the hardware configuration of the quality estimating device 10 according to this embodiment will be explained. The quality estimating device 10 according to this embodiment is realized, for example, by the hardware configuration of a computer 500 shown in FIG. 6.
　図６に示すコンピュータ５００は、入力装置５０１と、表示装置５０２と、外部Ｉ／Ｆ５０３と、通信Ｉ／Ｆ５０４と、プロセッサ５０５と、メモリ装置５０６とを有する。これらの各ハードウェアは、それぞれがバス５０７により通信可能に接続される。 The computer 500 shown in FIG. 6 includes an input device 501, a display device 502, an external I/F 503, a communication I/F 504, a processor 505, and a memory device 506. Each of these pieces of hardware is communicably connected via a bus 507.
　入力装置５０１は、例えば、キーボードやマウス、タッチパネル等である。表示装置５０２は、例えば、ディスプレイ等である。なお、コンピュータ５００は、入力装置５０１及び表示装置５０２のうちの少なくとも一方を有していなくてもよい。 The input device 501 is, for example, a keyboard, a mouse, a touch panel, or the like. The display device 502 is, for example, a display. Note that the computer 500 does not need to have at least one of the input device 501 and the display device 502.
　外部Ｉ／Ｆ５０３は、記録媒体５０３ａ等の外部装置とのインタフェースである。なお、記録媒体５０３ａとしては、例えば、ＣＤ（Compact Disc）、ＤＶＤ（Digital Versatile Disk）、ＳＤメモリカード（Secure Digital memory card）、ＵＳＢ（Universal Serial Bus）メモリカード等が挙げられる。 The external I/F 503 is an interface with an external device such as a recording medium 503a. Note that examples of the recording medium 503a include a CD (Compact Disc), a DVD (Digital Versatile Disk), an SD memory card (Secure Digital memory card), and a USB (Universal Serial Bus) memory card.
　通信Ｉ／Ｆ５０４は、他の装置や機器、システム等との間でデータ通信を行うためのインタフェースである。プロセッサ５０５は、例えば、ＣＰＵ等の各種演算装置である。メモリ装置５０６は、例えば、ＨＤＤやＳＳＤ、ＲＡＭ（Random Access Memory）、ＲＯＭ（Read Only Memory）、フラッシュメモリ等の各種記憶装置である。 The communication I/F 504 is an interface for performing data communication with other devices, equipment, systems, etc. The processor 505 is, for example, various arithmetic devices such as a CPU. The memory device 506 is, for example, various storage devices such as an HDD, an SSD, a RAM (Random Access Memory), a ROM (Read Only Memory), and a flash memory.
　本実施形態に係る品質推定装置１０は、図６に示すコンピュータ５００のハードウェア構成を有することにより、上述した各種処理を実現することができる。なお、図６に示すコンピュータ５００のハードウェア構成は一例であって、コンピュータ５００は、他のハードウェア構成を有していてもよい。例えば、コンピュータ５００は、複数のプロセッサ５０５を有していてもよいし、複数のメモリ装置５０６を有していてもよい。 The quality estimating device 10 according to this embodiment can implement the various processes described above by having the hardware configuration of the computer 500 shown in FIG. Note that the hardware configuration of the computer 500 shown in FIG. 6 is an example, and the computer 500 may have another hardware configuration. For example, computer 500 may have multiple processors 505 and multiple memory devices 506.
　本実施形態に係る品質推定装置１０は、上述した各処理をコンピュータ５００に実行させるためのプログラムを読み出して、当該プログラムに規定される処理を実行することによって実現される。当該プログラムは、記録媒体５０３ａ等に記録されていてもよいし、ネットワークを通して提供されていてもよい。 The quality estimating device 10 according to the present embodiment is realized by reading a program for causing the computer 500 to execute each of the processes described above, and executing the processes specified in the program. The program may be recorded on the recording medium 503a or the like, or may be provided through a network.
　本実施の形態に係る品質推定装置１０によれば、端末２０が選択したセル構成の履歴に基づいて、指定される位置における通信品質を推定し、端末２０に出力する。これによって、端末２０は、例えば将来の端末の位置において、セル構成がどのように制御されるかが不明であっても、推定されるセル構成に基づいて、通信品質の推定結果を取得することができる。すなわち、無線通信ネットワークにおける端末の通信品質の推定精度を向上させることができる。 According to the quality estimating device 10 according to the present embodiment, the communication quality at a designated position is estimated based on the history of the cell configuration selected by the terminal 20, and is output to the terminal 20. As a result, the terminal 20 can obtain communication quality estimation results based on the estimated cell configuration, even if it is unknown how the cell configuration will be controlled at the future location of the terminal, for example. Can be done. That is, the accuracy of estimating the communication quality of a terminal in a wireless communication network can be improved.
　（実施の形態のまとめ）
　本明細書には、少なくとも下記の各項に記載した品質推定装置、品質推定方法、及びプログラムが記載されている。
（第１項）
　１または複数の端末の位置を示す情報を含み、前記１または複数の端末が選択したセル構成の履歴を示すデータを取得するように構成されているセル構成履歴データ取得部と、
　端末から位置を示す情報を受信して、前記位置における通信品質の推定要求を受け付けるように構成されている推定品質要求受付部と、
　前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づいて前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている品質推定部と、を備える、
　品質推定装置。
（第２項）
　前記セル構成の履歴を示すデータは、前記セル構成として基地局および周波数帯の組み合わせが選択された履歴を含み、
　前記基地局ごとに通信品質を算出するように構成されている品質計算部をさらに備え、
　前記品質推定部は、算出された前記基地局ごとの通信品質に基づいて、通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
　第１項に記載の品質推定装置。
（第３項）
　前記セル構成の履歴を示すデータは、前記１または複数の端末がサポートする周波数帯および最大アグリゲーション数を示す履歴を含み、
　前記推定品質要求受付部は、通信品質の推定を要求した前記端末がサポートする周波数帯および最大アグリゲーション数を示す情報を受信するように構成され、
　前記品質推定部は、通信品質の推定を要求した前記端末がサポートする周波数帯および最大アグリゲーション数を示す情報に基づいて、前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
　第１項または第２項に記載の品質推定装置。
（第４項）
　前記品質推定部は、前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づく前記セル構成の履歴を示すデータから、出現頻度の多いセル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
　第１項から第３項のいずれか１項に記載の品質推定装置。
（第５項）
　コンピュータが実行する品質推定方法であって、
　１または複数の端末の位置を示す情報を含み、前記１または複数の端末が選択したセル構成の履歴を示すデータを取得するステップと、
　端末から位置を示す情報を受信して、前記位置における通信品質の推定要求を受け付けるステップと、
　前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づいて前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するステップと、を備える、
　品質推定方法。
（第６項）
　コンピュータを、第１項から第４項のいずれか１項に記載の品質推定装置における各部として機能させるためのプログラム。 (Summary of embodiments)
This specification describes at least a quality estimation device, a quality estimation method, and a program described in each section below.
(Section 1)
a cell configuration history data acquisition unit configured to acquire data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals;
an estimated quality request receiving unit configured to receive information indicating a location from a terminal and accept a request for estimating communication quality at the location;
Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration. a quality estimator configured to estimate the quality of communication at the location of the terminal that has requested estimation of communication quality;
Quality estimation device.
(Section 2)
The data indicating the history of the cell configuration includes a history of selection of a combination of base stations and frequency bands as the cell configuration,
further comprising a quality calculation unit configured to calculate communication quality for each base station,
The quality estimation unit is configured to estimate the quality of communication at the location of the terminal that has requested estimation of communication quality, based on the calculated communication quality for each base station.
The quality estimation device according to item 1.
(Section 3)
The data indicating a history of the cell configuration includes a history indicating a frequency band and a maximum number of aggregations supported by the one or more terminals,
The estimated quality request reception unit is configured to receive information indicating a frequency band and a maximum number of aggregations supported by the terminal that has requested communication quality estimation,
The quality estimating unit extracts data indicating the history of the cell configuration based on information indicating the frequency band and maximum number of aggregations supported by the terminal that has requested communication quality estimation, and calculates the data of the extracted cell configuration. configured to estimate the quality of communication at the location of the terminal that requested estimation of communication quality based on data indicating history;
The quality estimation device according to item 1 or 2.
(Section 4)
The quality estimation unit indicates a history of frequently appearing cell configurations from data indicating a history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration. configured to extract data and estimate the quality of communication at the location of the terminal that has requested estimation of communication quality based on the extracted data indicating the history of the cell configuration;
The quality estimation device according to any one of the first to third terms.
(Section 5)
A computer-implemented quality estimation method, comprising:
acquiring data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals;
receiving information indicating a location from a terminal and accepting a request for estimating communication quality at the location;
Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration. estimating the quality of communication at the location of the terminal that has requested estimation of communication quality;
Quality estimation method.
(Section 6)
A program for causing a computer to function as each part of the quality estimating device according to any one of items 1 to 4.
　以上、本実施の形態について説明したが、本発明はかかる特定の実施形態に限定されるものではなく、請求の範囲に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。 Although the present embodiment has been described above, the present invention is not limited to such specific embodiment, and various modifications and changes can be made within the scope of the gist of the present invention as described in the claims. It is.
　１　品質推定システム
　１０　品質推定装置
　１１　セル構成履歴データ取得部
　１２　記憶部
　１３　推定品質要求受付部
　１４　品質推定部
　１５　セル構成履歴管理部
　１６　品質計算部
　１７　推定品質出力部
　２０　端末
　５００　　コンピュータ
　５０１　　入力装置
　５０２　　表示装置
　５０３　　外部Ｉ／Ｆ
　５０３ａ　記録媒体
　５０４　　通信Ｉ／Ｆ
　５０５　　プロセッサ
　５０６　　メモリ装置
　５０７　　バス 1 Quality Estimation System 10 Quality Estimation Device 11 Cell Configuration History Data Acquisition Unit 12 Storage Unit 13 Estimated Quality Request Reception Unit 14 Quality Estimation Unit 15 Cell Configuration History Management Unit 16 Quality Calculation Unit 17 Estimated Quality Output Unit 20 Terminal 500 Computer 501 Input Device 502 Display device 503 External I/F
503a Recording medium 504 Communication I/F
505 processor 506 memory device 507 bus

Claims (6)

  1. 　１または複数の端末の位置を示す情報を含み、前記１または複数の端末が選択したセル構成の履歴を示すデータを取得するように構成されているセル構成履歴データ取得部と、
    　端末から位置を示す情報を受信して、前記位置における通信品質の推定要求を受け付けるように構成されている推定品質要求受付部と、
    　前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づいて前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている品質推定部と、を備える、
    　品質推定装置。     a cell configuration history data acquisition unit configured to acquire data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals;
    an estimated quality request receiving unit configured to receive information indicating a location from a terminal and accept a request for estimating communication quality at the location;
    Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration. a quality estimator configured to estimate the quality of communication at the location of the terminal that has requested estimation of communication quality;
    Quality estimation device.
  2. 　前記セル構成の履歴を示すデータは、前記セル構成として基地局および周波数帯の組み合わせが選択された履歴を含み、
    　前記基地局ごとに通信品質を算出するように構成されている品質計算部をさらに備え、
    　前記品質推定部は、算出された前記基地局ごとの通信品質に基づいて、通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
    　請求項１に記載の品質推定装置。     The data indicating the history of the cell configuration includes a history of selection of a combination of base stations and frequency bands as the cell configuration,
    further comprising a quality calculation unit configured to calculate communication quality for each base station,
    The quality estimation unit is configured to estimate the quality of communication at the location of the terminal that has requested estimation of communication quality, based on the calculated communication quality for each base station.
    The quality estimation device according to claim 1.
  3. 　前記セル構成の履歴を示すデータは、前記１または複数の端末がサポートする周波数帯および最大アグリゲーション数を示す履歴を含み、
    　前記推定品質要求受付部は、通信品質の推定を要求した前記端末がサポートする周波数帯および最大アグリゲーション数を示す情報を受信するように構成され、
    　前記品質推定部は、通信品質の推定を要求した前記端末がサポートする周波数帯および最大アグリゲーション数を示す情報に基づいて、前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
    　請求項１に記載の品質推定装置。     The data indicating a history of the cell configuration includes a history indicating a frequency band and a maximum number of aggregations supported by the one or more terminals,
    The estimated quality request reception unit is configured to receive information indicating a frequency band and a maximum number of aggregations supported by the terminal that has requested communication quality estimation,
    The quality estimating unit extracts data indicating the history of the cell configuration based on information indicating the frequency band and maximum number of aggregations supported by the terminal that has requested communication quality estimation, and calculates the data of the extracted cell configuration. configured to estimate the quality of communication at the location of the terminal that requested estimation of communication quality based on data indicating history;
    The quality estimation device according to claim 1.
  4. 　前記品質推定部は、前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づく前記セル構成の履歴を示すデータから、出現頻度の多いセル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するように構成されている、
    　請求項１に記載の品質推定装置。     The quality estimation unit indicates a history of frequently appearing cell configurations from data indicating a history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration. configured to extract data and estimate the quality of communication at the location of the terminal that has requested estimation of communication quality based on the extracted data indicating the history of the cell configuration;
    The quality estimation device according to claim 1.
  5. 　コンピュータが実行する品質推定方法であって、
    　１または複数の端末の位置を示す情報を含み、前記１または複数の端末が選択したセル構成の履歴を示すデータを取得するステップと、
    　端末から位置を示す情報を受信して、前記位置における通信品質の推定要求を受け付けるステップと、
    　前記セル構成の履歴を示すデータに含まれる前記１または複数の端末の位置を示す情報に基づいて前記セル構成の履歴を示すデータを抽出し、抽出された前記セル構成の履歴を示すデータに基づいて通信品質の推定を要求した前記端末の前記位置における通信の品質を推定するステップと、を備える、
    　品質推定方法。     A computer-implemented quality estimation method, comprising:
    acquiring data including information indicating the location of one or more terminals and indicating a history of cell configurations selected by the one or more terminals;
    receiving information indicating a location from a terminal and accepting a request for estimating communication quality at the location;
    Extracting data indicating the history of the cell configuration based on information indicating the position of the one or more terminals included in the data indicating the history of the cell configuration, and based on the extracted data indicating the history of the cell configuration. estimating the quality of communication at the location of the terminal that has requested estimation of communication quality;
    Quality estimation method.
  6. 　コンピュータを、請求項１から４のいずれか１項に記載の品質推定装置における各部として機能させるためのプログラム。 A program for causing a computer to function as each part of the quality estimating device according to any one of claims 1 to 4.
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JP2019149652A (en) * 2018-02-26 2019-09-05 Kddi株式会社 Information transmission device, communication system and communication terminal
WO2022038760A1 (en) * 2020-08-21 2022-02-24 日本電信電話株式会社 Device, method, and program for predicting communication quality
JP2022063929A (en) * 2020-10-13 2022-04-25 株式会社デンソー Radio wave map update device and communication quality identification device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013058948A (en) * 2011-09-09 2013-03-28 Nec Corp Radio access system and radio access method
JP2018133718A (en) * 2017-02-16 2018-08-23 パナソニックＩｐマネジメント株式会社 Communication area analyzer, method, and, program
JP2019149652A (en) * 2018-02-26 2019-09-05 Kddi株式会社 Information transmission device, communication system and communication terminal
WO2022038760A1 (en) * 2020-08-21 2022-02-24 日本電信電話株式会社 Device, method, and program for predicting communication quality
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