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Fine Grain Localization of users for Historical Analysis

IP.com Disclosure Number: IPCOM000235607D
Publication Date: 2014-Mar-11
Document File: 6 page(s) / 115K

Publishing Venue

The IP.com Prior Art Database

Abstract

The core idea of the invention is to combine information from other historical data sources that can allow a finer grain identification of resolution. Other sources of information include details like the home address of a user, or in some type of call detail records, how the user has moved across different cell-phones, or the geospatial map of the neighborhood. However, these pieces of information are only available for a limited set of users. By combining these additional pieces of information with the base-station information, we can identify the origination points for a subset of the calls that are made. That information is then scaled proportionately back to reflect the distribution of calls that are made within the cell.

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Fine Grain Localization of users for Historical Analysis

BACKGROUND:

The location of users within a cellular network is a valuable piece of information that enables several potential commercialization and data monetization applications . This information can be used for both real -time location based services as well as historical location based data analysis. While finer granularity localization is used for real -time location based services, historical location based data analysis has to use location information based on information that is warehoused or archived . Fine grain location information (e.g., GPS based user trajectories) is rarely stored in archival because of two main reasons: (1) Storing fine-grained location information requires a large storage capacity, and (2) Not all users transmit their GPS location coordinates to the operator .

Because of the above, historical analysis dependent on location has to default to a coarse measure of location. As an example, a call data record may identify the originating base-station of a call. This identifies that the caller was in the area serviced by the base-station. In some cases, Base-stations have different antenna serving different sub-areas or sectors, and if the antenna information is available , one can map the location of the caller or callee down to that sub -area/sector. The sub-areas or sectors would however be fairly large spanning several square kilometers. Several applications may need a finer grain information of user location presence , e.g. if deciding to locate more base-stations in the area to handle historically higher call volumes, one would benefit by knowing how callers were distributed around that region .

The goal of the invention is to identify a finer resolution of user location than that included in the call data record from base-station or antenna information. We do it by correlation with other types of historical information. This allows finer granularity resolution of user location than other existing localization approaches .

DESCRIPTION:

In a cellular network, users are serviced by dividing a region into many different distinct cells. A cell-tower is located where communication equipment talks to users in those cells. Users, who may be making phone calls or surfing the Internet , connect to that equipment. The location of a user in a region can be identified using existing techniques such as Global Positioning Systems (GPS), using triangulation information contained at a cell-tower, or at a more coarse level by using the identity of the cell-tower

where the user is currently located. The location of users within a cellular network is a valuable piece of information that enables several potential commercialization and data monetization applications. This information can be used for both real -time location based services and historical location based data analysis.

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Figure 1

While finer granularity localization is used for real -ti...