WO2015029282A1 - 情報処理装置、無線通信システム及び端末位置推定方法 - Google Patents
情報処理装置、無線通信システム及び端末位置推定方法 Download PDFInfo
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- WO2015029282A1 WO2015029282A1 PCT/JP2014/002463 JP2014002463W WO2015029282A1 WO 2015029282 A1 WO2015029282 A1 WO 2015029282A1 JP 2014002463 W JP2014002463 W JP 2014002463W WO 2015029282 A1 WO2015029282 A1 WO 2015029282A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Definitions
- the present invention relates to an information processing device, a wireless communication system, a terminal location estimation method, and a terminal location estimation program, and in particular, an information processing device, a wireless communication system, a terminal location estimation method, and a terminal location estimation that estimate the number of terminals in local area units. Regarding the program.
- Patent Document 1 discloses a technique related to a method and system for dynamically configuring a telecommunications network. The method according to Patent Document 1 predicts a signal-to-noise ratio and dynamically reconfigures a network cell according to a cell load factor.
- Patent Document 2 discloses a technique related to a wireless communication system or the like that estimates wireless propagation by correcting a theoretical simulation with actual measurement values and determines the transmission power of a base station apparatus based on the result.
- a management server or the like acquires load information from a plurality of access points and terminals, calculates a predetermined evaluation value for load status evaluation, and sets each evaluation value to be minimum.
- a technique for controlling the load status of a cell is disclosed.
- Patent Literature 4 a plurality of update centers are arranged at known fixed locations in a base station service area, and each update center is preliminarily standardized with each of the update centers along with the determined real-time RF measurement value of the base station.
- a technique for transmitting its own location information to a location data bank in cooperation with at least one mobile unit is disclosed.
- Patent Document 1 load information in units of cells, for example, the number of terminals in units of cells is detected.
- Patent Document 1 it is not possible to specify a hot spot in a cell, that is, a local region where there are many real terminals.
- Patent Document 3 deals with load information in units of access points, and can be said to be the same.
- a method for specifying the Hotspot there are a method assumed by confirming the population density by GPS (Global Positioning System), external information or a field survey (for example, a running test).
- GPS Global Positioning System
- external information for example, a running test
- the Hotspot identification method by collecting location information by GPS or the like depends on the function and setting of the wireless terminal. Therefore, it cannot be controlled by the operator side, and position information can be collected only from a terminal equipped with GPS and a terminal in an available state.
- Patent Document 2 requires that the mobile terminal has a function of acquiring the position of the actual measurement point.
- Patent Document 4 requires that the update center has a function of transmitting its own location information. Therefore, in order to realize these, there is a problem that it is necessary to use a wireless terminal having a function of collecting position information in advance, or to add a function of collecting position information to the wireless terminal, or to change a setting. is there.
- the hotspot identification method based on the assumption of hotspot by confirming the density of population is troublesome because it requires labor in running tests and has a low assumed accuracy.
- the present invention has been made to solve such problems, and is an information processing apparatus and wireless communication for efficiently extracting position information of a wireless terminal without depending on a specific function of the wireless terminal. It is an object to provide a system, a terminal position estimation method, and a terminal position estimation program.
- An information processing apparatus includes: Collation for collating a plurality of actual measurement information indicating signal reception information measured for each of a plurality of radio terminals and a plurality of prediction information predicted as the reception information in any of the radio terminals for each of a plurality of local regions Means, Aggregating means for aggregating the number of the wireless terminals in which the prediction information and the actual measurement information within a predetermined range among the plurality of actual measurement information are measured for each of the plurality of local regions; Is provided.
- the wireless communication system is: Multiple wireless terminals, A plurality of base stations capable of communicating with at least one of the plurality of wireless terminals; An information processing apparatus capable of communicating with the plurality of base stations, The information processing apparatus includes: A plurality of actual measurement information indicating reception information of signals measured for each of the plurality of wireless terminals is collated with a plurality of prediction information predicted as the reception information in any of the wireless terminals for each of a plurality of local regions. Matching means; And tally means for counting the number of the wireless terminals for which the prediction information and the actual measurement information within a predetermined range among the plurality of actual measurement information are measured for each of the plurality of local regions.
- the terminal location estimation method includes: A terminal position estimation method for estimating positions of a plurality of wireless terminals using an information processing device,
- the information processing apparatus is A plurality of actual measurement information indicating reception information of signals measured for a plurality of wireless terminals, and a plurality of prediction information predicted as the reception information in any of the wireless terminals for each of a plurality of local regions,
- the number of the wireless terminals for which the prediction information and the actual measurement information within a predetermined range among the plurality of actual measurement information are measured is aggregated for each of the plurality of local regions.
- the terminal location estimation program is: Collation for collating a plurality of actual measurement information indicating signal reception information measured for each of a plurality of radio terminals and a plurality of prediction information predicted as the reception information in any of the radio terminals for each of a plurality of local regions Processing, Aggregation processing for counting the number of the wireless terminals in which the prediction information and the actual measurement information within a predetermined range among the plurality of actual measurement information are measured for each of the plurality of local regions; Is executed on the computer.
- an information processing apparatus for efficiently extracting position information of a wireless terminal without depending on a specific function of the wireless terminal. it can.
- FIG. 1 is a block diagram showing an overall configuration of a wireless communication system 100 according to the first embodiment of the present invention.
- the wireless communication system 100 includes an information processing apparatus 10, base stations 21 to 23, and wireless terminals 31 to 34.
- the information processing apparatus 10 and the base stations 21 to 23 are connected via the network N and can communicate with each other.
- Each of the wireless terminals 31 to 34 is assumed to be capable of wireless communication with at least one of the base stations 21 to 23.
- the radio terminals 31 to 34 can also be called user terminals (UE).
- the number of base stations 21 to 23 and the number of wireless terminals 31 to 34 are not limited to these.
- the base stations 21 to 23 and the wireless terminals 31 to 34 may have any general function and can be realized using a known technique, and thus detailed description thereof is omitted.
- the wireless terminals 31 to 34 include those that do not have a function of acquiring and transmitting position information such as GPS.
- cell refers to a communicable area (service area) covered by one base station.
- the “local region” is a partial region in the cell. That is, the local area is narrower than the service area.
- a wireless terminal located in a certain local area can receive radio waves from cells of a plurality of base stations and measure their reception quality.
- the information processing apparatus 10 includes at least a verification unit 11 and a totaling unit 12.
- the collation means 11 collates a plurality of actual measurement information with a plurality of prediction information.
- the plurality of actual measurement information indicates reception information of signals measured for each of the wireless terminals 31 to 34.
- the plurality of pieces of prediction information indicate information predicted as signal reception information in any of the wireless terminals for each of a plurality of local regions.
- the tabulating unit 12 tabulates the prediction information and the number of wireless terminals for which the actually measured information within a predetermined range is measured among the plurality of actually measured information for each of the plurality of local regions.
- the prediction information and the actual measurement information without using the position information of each wireless terminal, it is possible to estimate the number of wireless terminals for each local area that is a part of the cell. That is, the position information of the wireless terminal can be efficiently extracted without depending on a specific function (for example, GPS) of the wireless terminal. Therefore, Hotspot can be specified, and an efficient expansion plan can be created.
- a specific function for example, GPS
- the RF prediction information based on the RF simulation result (RF coverage estimation program) and the actual terminal report
- the number of terminals existing in each local area can be estimated.
- the information processing apparatus 10 may include, for example, an RF (Radio Frequency) simulation server and a database as an O & M (Operation and Maintenance) server.
- the information processing apparatus 10 may be an SON (Self-Organization-Network) server, an EMS (Element-Management System) (O & M), or an eNodeB (using an X2 interface) or other server.
- examples of the information processing apparatus 10 are not limited to these.
- the information processing apparatus 10 has the following configuration. That is, the information processing apparatus 10 further includes a collecting unit (not shown) that collects a plurality of actual measurement information from each of the wireless terminals 31 to 34. In this case, the collation unit 11 collates the plurality of actual measurement information collected by the collection unit with the plurality of prediction information. The information processing apparatus 10 further includes a prediction unit that predicts reception information in an arbitrary wireless terminal as a plurality of pieces of prediction information for each of a plurality of local regions. In this case, the collation unit 11 collates a plurality of actual measurement information with a plurality of prediction information predicted by the prediction unit. Note that the collection unit and the prediction unit are not necessarily essential, and either one may be used. In that case, the actual measurement information or the actual measurement information may be given to the information processing apparatus 10 in advance.
- FIG. 2 is a block diagram showing a configuration of the information processing apparatus 10 according to the first embodiment of the present invention.
- the information processing apparatus 10 includes a CPU (Central Processing Unit) 101, a memory 102, a communication unit 103, and a hard disk 104.
- CPU Central Processing Unit
- the hard disk 104 is a non-volatile storage device.
- the hard disk 104 stores an OS (not shown), a program 1041, cell information 1042, local area information 1043, a terminal 1044, RF prediction information 1045, RF actual measurement information 1046, and the like.
- the program 1041 is a computer program in which a terminal position estimation process (for example, the process of FIG. 5 described later) according to the first embodiment of the present invention is implemented.
- the hard disk 104 may store an RF simulation program (not shown) such as an RF coverage estimation program separately from the program 1041.
- Cell information 1042 is information about base stations 21 to 23 and cells (including cell ID).
- the local area information 1043 is information regarding a local area (spot) including AreaID, latitude, longitude, and the like.
- the terminal information 1044 is information (including a terminal ID) regarding the wireless terminals 31 to 34.
- the RF prediction information 1045 is an example of the above-described prediction information.
- the RF actual measurement information 1046 is an example of the above-described actual measurement information.
- the CPU 101 controls various processes in the information processing apparatus 10, access to the memory 102, the communication unit 103, the hard disk 104, and the like.
- the communication unit 103 performs communication with the outside via the network N.
- the CPU 101 reads and executes the OS, the program 1041, and the like stored in the memory 102 or the hard disk 104. Thereby, the information processing apparatus 10 can implement a terminal position estimation process and the like.
- the information processing apparatus 10 is an RF simulation server.
- the RF simulation server executes a simulation using settings such as the position of the base station and transmission output, and has RF prediction information (an example of prediction information) in each local region in a database.
- the RF prediction information obtained by the simulation includes at least one of RSRP (Reference Symbol Received (Power), RSRQ (Reference Symbol Received Quality) or RSSI (Received Signal Strength Indicator) of cells received in each local region, It is good to be a combination.
- SINR Signal to Interference plus Noise Ratio
- the reception information described above may be a combination of a plurality of types of actual measurement values, and the types may include, for example, RSRP, RSRQ, RSSI, or SINR.
- the RF prediction information may include a combination of a plurality of cells predicted to be able to transmit / receive to / from any wireless terminal per local area and the reception information in each cell.
- FIG. 3 is a diagram showing an example of RF prediction information according to the first exemplary embodiment of the present invention.
- RF such as RSRP, RSRQ, RSSI, etc.
- the local area information may be used by defining a certain area section in addition to the latitude and longitude information.
- the RF actual measurement information may include a combination of a plurality of cells in which reception information is measured per wireless terminal and reception information in each cell.
- FIG. 4 is a diagram showing an example of RF actual measurement information according to the first embodiment of the present invention.
- each of the wireless terminals 31 to 34 receives signals from a plurality of base stations that can be transmitted and received at a currently existing point, and measures RF measurement value information for each cell. Then, each of the wireless terminals 31 to 34 transmits the RF measurement value information to the base station to which it currently belongs. Each of the wireless terminals 31 to 34 also transmits its own terminal ID and the like at the time of transmitting the RF actual measurement value information.
- Each of the base stations 21 to 23 receives RF measured value information (cell ID, RSRP, RSRQ, RSSI, etc.) transmitted from each of the wireless terminals 31 to 34, and periodically notifies the RF simulation server. The RF simulation server periodically receives the RF measurement information reported from each of the wireless terminals 31 to 34 via any of the base stations 21 to 23.
- FIG. 5 is a flowchart showing a flow of terminal position estimation processing according to the first exemplary embodiment of the present invention.
- the RF simulation server calculates RF prediction information for each local region (S101).
- an RF simulation server for example, the above-described prediction unit
- the RF simulation server stores the result in the database (hard disk 104) as the RF prediction information 1045 for each local region.
- each of the base stations 21 to 23 receives RF actual measurement value information (RSRP, RSRQ, RSSI, etc. for each received cell) reported from each wireless terminal, and periodically notifies the RF simulation server of this information.
- the RF simulation server (for example, the collection unit described above) collects RF actual measurement value information from each wireless terminal via the base station (S102).
- the RF simulation server may store the collected RF actual measurement value information as RF actual measurement information 1046 for each wireless terminal in the database (hard disk 104).
- the RF simulation server (collation unit 11) refers to the hard disk 104 and collates the RF prediction information with the RF measurement information (S103).
- the verification means 11 Whether or not the RF prediction information is within a predetermined range of the RF actual measurement information is determined based on the matching degree of the combination of the received information (RSRP, RSRQ, RSSI, etc.) between the RF prediction information and the RF actual measurement information. .
- the collating unit 11 receives received information (RSRP, RSRQ, RSSI, etc.) corresponding to each of the matching cells in which the combination of a plurality of cells matches between the RF prediction information and the RF actual measurement information. Whether the RF prediction information is within a predetermined range of the RF actual measurement information is determined based on the degree of coincidence. Thereby, the specific precision of the local area
- each value (RSRP, RSRQ, RSSI, etc.) of the received information is completely coincident, when some are coincident, when the difference between each value is within a predetermined value, it is coincident Any range that can be inferred to be present. Statistical methods may be used.
- the RF simulation server associates the local area where the RF prediction information and the RF actual measurement information are within a predetermined range with the terminal (S104). Thereafter, the RF simulation server (aggregation means 12) aggregates the number of terminals for each local region (S105). That is, the counting unit 12 associates the wireless terminal in the RF measurement information that is within a predetermined range with the RF prediction information among the plurality of RF measurement information, and associates the wireless terminal with the local region in the RF prediction information. The number of associated wireless terminals is totaled.
- the RF simulation server estimates the position of the terminal by specifying what matches the above combination or information that can be inferred. Moreover, the number of terminals for each local region is predicted by adding the estimated terminals for each local region.
- each wireless terminal may transmit RF actual measurement information when an incoming / outgoing event or other event occurs.
- wireless terminal may transmit RF measurement information regularly.
- the RF simulation server may request each wireless terminal to transmit the RF actual measurement information via the base station, and each wireless terminal may transmit the RF actual measurement information in response thereto.
- FIG. 6 is a diagram showing the concept of the terminal position estimation process according to the first embodiment of the present invention.
- the information processing apparatus 10 is predicted to be received from Cell-A (base station 21), Cell-B (base station 22), and Cell-C (base station 23) in each local region (Area1 to Area3).
- the RF prediction information 1045 to be calculated is calculated by the RF simulation or has in advance.
- the information processing apparatus 10 collects RF reports (RF actual measurement information 1046) measured from Cell-A, Cell-B, and Cell-C in each terminal (UE1 to UE3, wireless terminals 31 to 34) or in advance. Shall have.
- the hatched portion in the lower right of FIG. However, it is assumed that the shaded portion described in FIG. 6 does not correspond to the number and arrangement of the wireless terminals 31 to 34.
- hot spots in a cell that is, spots (local areas) where there are many real terminals can be efficiently identified.
- the present invention can be implemented without impact on the existing terminal (user) (without requiring a high function from the terminal, that is, without affecting it) and without taking time and effort such as a running test.
- OPEX Operating Expense
- the embodiment of the present invention can also be expressed as follows. That is, an RF simulation is performed by a server (RF simulation server or the like) connected to each base station, and RF data (RF prediction information) for each detailed point (local area) obtained here is reported from each wireless terminal. The number of wireless terminals existing at each detailed point is predicted by collating with the measured RF measurement information.
- each base station is connected to an arbitrary server, and RF data (RF prediction information) for each point (local area) is stored in advance as an RF simulation result in the server.
- each report transmitted from the wireless terminal to the base station includes RF measurement information (such as the radio wave intensity / quality of the own cell and adjacent cells), and the server collects this via the base station.
- the present invention can be applied to various mobile communication systems including, for example, LTE (Long Term Evolution), WCDMA (registered trademark) (Wideband Code Division Multiple Access), and GSM (registered trademark) (Global System for Mobile Communications). Is possible. Then, it can be used when grasping the terminal area distribution of the current network when adding base stations or newly introducing other systems.
- LTE Long Term Evolution
- WCDMA Wideband Code Division Multiple Access
- GSM registered trademark
- GSM Global System for Mobile Communications
- the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention already described.
- the present invention has been described as a hardware configuration, but the present invention is not limited to this.
- the present invention can also realize arbitrary processing by causing a CPU (Central Processing Unit) to execute a computer program.
- a CPU Central Processing Unit
- Non-transitory computer readable media include various types of tangible storage media (tangible storage medium).
- Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, DVD (Digital Versatile Disc), BD (Blu-ray (registered trademark) Disc), semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM ( Random Access Memory)).
- magnetic recording media eg flexible disks, magnetic tapes, hard disk drives
- magneto-optical recording media eg magneto-optical discs
- CD-ROMs Read Only Memory
- CD-Rs Compact Only Memory
- CD-R / W Digital Versatile Disc
- DVD Digital Versatile Disc
- BD Blu-ray (registered trademark) Disc
- the program may also be supplied to the computer by various types of temporary computer-readable media.
- Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
- the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
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Abstract
Description
複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合手段と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計手段と、
を備える。
複数の無線端末と、
前記複数の無線端末の少なくもいずれかと通信可能な複数の基地局と、
前記複数の基地局と通信可能な情報処理装置と、を備え、
前記情報処理装置は、
前記複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合手段と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計手段と、を備える。
情報処理装置を用いて複数の無線端末の位置を推定する端末位置推定方法であって、
前記情報処理装置が、
複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合し、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する。
複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合処理と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計処理と、
をコンピュータに実行させる。
図1は、本発明の実施の形態1にかかる無線通信システム100の全体構成を示すブロック図である。無線通信システム100は、情報処理装置10と、基地局21~23と、無線端末31~34とを備える。情報処理装置10と基地局21~23とは、ネットワークNを介して接続され、相互に通信可能である。また、無線端末31~34のそれぞれは、少なくとも基地局21~23のいずれかと無線通信が可能であるものとする。無線端末31~34は、ユーザ端末(UE)と呼ぶこともできる。尚、基地局21~23の数、及び、無線端末31~34の数は、これらに限定されない。
RF予測情報とRF実測情報との間で、受信情報(RSRP、RSRQ、RSSI等)の組み合わせの一致度合いに基づき、RF予測情報がRF実測情報の所定の範囲内であるか否かを判定する。
本発明の実施の形態は、次のように表現することもできる。すなわち、各基地局と接続されているサーバ(RFシミュレーションサーバ等)でRFシミュレーションを実施し、ここで得た詳細地点(局所領域)毎のRFデータ(RF予測情報)と、各無線端末から報告されたRF実測情報とを照合することで、各詳細地点毎に存在する無線端末数を予測する。
10 情報処理装置
11 照合手段
12 集計手段
N ネットワーク
21 基地局
22 基地局
23 基地局
31 無線端末
32 無線端末
33 無線端末
34 無線端末
101 CPU
102 メモリ
103 通信部
104 ハードディスク
1041 プログラム
1042 セル情報
1043 局所領域情報
1044 端末情報
1045 RF予測情報
1046 RF実測情報
Claims (10)
- 複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合手段と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計手段と、
を備える情報処理装置。 - 前記受信情報は、複数の種類の実測値の組み合わせであり、
前記照合手段は、
前記複数の実測情報と前記複数の予測情報との間で、前記組み合わせの一致度合いに基づき、前記予測情報が前記実測情報の所定の範囲内であるか否かを判定する
請求項1に記載の情報処理装置。 - 前記実測情報は、前記無線端末当たりに前記受信情報が測定された前記複数のセルと、各セルにおける前記受信情報との組み合わせを含み、
前記予測情報は、前記局所領域当たりに任意の前記無線端末と送受信可能であると予測された複数のセルと、各セルにおける前記受信情報との組み合わせを含み、
前記照合手段は、
前記複数の予測情報と前記複数の実測情報との間で、前記複数のセルの組み合わせが一致し、かつ、当該一致するセル同士のそれぞれに対応する前記受信情報の一致度合いに基づき、前記予測情報が前記実測情報の所定の範囲内であるか否かを判定する
請求項1又は2に記載の情報処理装置。 - 前記集計手段は、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報における前記無線端末を、当該予測情報における前記局所領域に対応付け、
前記複数の局所領域ごとに、前記対応付けられた前記無線端末の数を集計する
請求項1乃至3のいずれか1項に記載の情報処理装置。 - 前記受信情報は、RSRP(Reference Symbol Received Power)、RSRQ(Reference Symbol Received Quality)又はRSSI(Received Signal Strength Indicator)の少なくともいずれかを含む、
請求項1乃至4のいずれか1項に記載の情報処理装置。 - 前記複数の実測情報を、前記複数の無線端末のそれぞれから収集する収集手段、をさらに備え、
前記照合手段は、
前記収集手段により収集された前記複数の実測情報と、前記複数の予測情報と、を照合する
請求項1乃至5のいずれか1項に記載の情報処理装置。 - 前記複数の局所領域ごとに任意の前記無線端末における前記受信情報を前記複数の予測情報として予測する予測手段と、をさらに備え、
前記照合手段は、
前記複数の実測情報と、前記予測手段により予測された前記複数の予測情報と、を照合する
請求項1乃至6のいずれか1項に記載の情報処理装置。 - 複数の無線端末と、
前記複数の無線端末の少なくもいずれかと通信可能な複数の基地局と、
前記複数の基地局と通信可能な情報処理装置と、を備え、
前記情報処理装置は、
前記複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合手段と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計手段と、を備える
無線通信システム。 - 情報処理装置を用いて複数の無線端末の位置を推定する端末位置推定方法であって、
前記情報処理装置が、
複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合し、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する、
端末位置推定方法。 - 複数の無線端末ごとに測定された信号の受信情報を示す複数の実測情報と、複数の局所領域ごとに任意の前記無線端末における前記受信情報として予測された複数の予測情報と、を照合する照合処理と、
前記複数の実測情報のうち前記予測情報と所定の範囲内である実測情報が測定された前記無線端末の数を、前記複数の局所領域ごとに集計する集計処理と、
をコンピュータに実行させる端末位置推定プログラムが格納された非一時的なコンピュータ可読媒体。
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