Ntt Docomo, Inc.

Yuki Oyabu

Ichiro Okajima

Toshihiro Suzuki

Hiroshi Kawakami

Motonari Kobayashi

Manhee Jo

Daisuke Ochi

Tomohiro Nagata

Masayuki Terada

A statistical information generation system includes a condition input section, an extracting section that extracts unidentifiable location data and unidentifiable attribute data, a magnification factor adding section that adds a magnification factor to the unidentifiable attribute data, a statistics section that calculates statistical data by using the unidentifiable location data, the unidentifiable attribute data, and the magnification factor, a counting section that counts the unidentifiable location data, a determining section that determines a magnitude of the number of pieces of data, and an output section that hides the statistical data to output the statistical data.

Statistical information generation system and statistical information generation method

A mobile station, a communication system, and a communication method that are capable of efficiently collecting location information of any user. A communicating module receives a positioning request including attribute specifying information from a management center, a determining module determines whether measurements of the location are necessary or not based on the attribute specifying information in the received positioning request and the attribute information stored in advance. Then, when the determining module determines that measurements of the location are necessary, a positioning module performs measurements of the location and sends location information thus measured to the management center. Accordingly, it is possible to collect the location information of the mobile station that agrees with an attribute that the management center desires and therefore, it is possible to provide an attentive service and the like based on the location information.

Mobile station, communication system, and communication method for collecting location information of a mobile station

A communication system aimed at easily and quickly collecting data regarding macroscopic population distribution, and easily and quickly obtaining survey results. An RNC of a communication system includes a signal-counting module that counts the number of signals indicating a quantity of signals transmitted and received between a mobile station and a BTS. An information analysis device includes a population distribution calculation module that calculates population distribution based on the number of the signals that the signal-counting module counts, and an output module that outputs the population distribution that the population distribution calculation module calculates.

Communication system, information analysis device, and information analysis method

Provided is a mesh data creation method allowing appropriate expression of population densities while making a balance between accuracy and granularity. In the mesh data creation method, when the number of samples in a region of reference mesh data with a predetermined size is not less than a threshold, divided mesh data is created by dividing the region of the reference mesh data. Namely, each portion with a high population density can be expressed by a fine region of mesh data and each portion with a low population density by a coarse region of mesh data. The above makes it feasible to prevent meshes from becoming too fine to ensure accuracy or, conversely, from becoming too coarse to maintain granularity, thereby resulting in failing to achieve a detailed grasp of population densities, and thus to achieve appropriate expression of population densities while making a balance between accuracy and granularity.

Mesh data creation method

For easily and quickly collecting data regarding macroscopic population distribution, and easily and quickly obtaining the survey results, an RNC includes: a location registration signal receiver that receives location registration signals, and a signal number counting module that counts the number of the location registration signals for each sector, and an information analyzing apparatus includes: a population distribution calculation module that calculates population distribution information based on the number of the location registration signals; and an output module that outputs the population distribution information.

Communication system, information analyzing apparatus and information analyzing method

A data join system of the present invention includes a table determination unitselecting a record b as a join target if a value of a key item included in a record a acquired by a data write unit from a table A falls within a first predetermined range set based on a value of a key item included in the record b stored in a table B, a data join unit joining the selected record b with the record a to generate a record c, and a data write unit storing the record c into a table C. Thus, the success rate of data join can be improved while the accuracy of join of the record b and the record a to be joined is improved.

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Zushi, Japan

Yuki Oyabu