NEC Technology Reduces Processing for Cellular Networks by Estimating the
Location of Mobile Terminals
Tokyo, Oct 2, 2013 - (JCN Newswire) - NEC Corporation (NEC; TSE: 6701) has
developed a new technology that estimates the location of mobile terminals
connected to cellular networks, such as smartphones and mobile phones,
resulting in a dramatic reduction in the signal processing that is required for
managing location information and enabling flexible location management of more
With the rapid expansion of cellular networks in recent years, the number of
devices that communicate via cellular networks, such as mobile terminals and
automobiles, has also significantly increased. Within this environment, there
is enormous potential for the use of the huge volumes of data ("big
data") processed by cellular networks.
In order for telecommunications carriers to provide reliable communications
for this diverse range of moving devices, their core networks need to manage
the location information of these devices. The management method currently used
by telecommunications carriers requires the core network to preset location
areas based on the mobility patterns of people, who are the users of mobile
devices, and renews the location registration when a device moves from one area
However, since devices communicating via cellular networks are rapidly
increasing and diversifying, there is increasing variation in mobility patterns
in terms of velocity and direction. As a result, large volumes of signals are
transmitted in order to clarify the location of a device. This requires
telecommunications carriers to process an increased management workload.
Moreover, when a telecommunications carrier sends a signal to a device,
signals are broadcast to all base stations, including those situated in areas
where the device is not currently located. This process, called paging, is
another cause of unnecessary management workload.
NEC's newly developed technology flexibly sets management areas by
estimating the mobility of devices, such as a broad management area for devices
that move at high speeds and a narrow management area for those that move at
In this way, the new technology reduces the frequency that location
information is registered for devices since it reduces the number of signals
that are sent to areas where the device is not located. This results in a
dramatic reduction in the amount of signal processing required for managing the
location of devices. Moreover, it allows telecommunications carriers to
accommodate many more devices with their existing management servers, thereby
helping to save on facility investment costs.
Features of the new technology include the following:
1. Uses an original algorithm to predict the changing location of devices with
NEC's original lightweight algorithm enables the accurate prediction of
the mobility of devices with irregular mobility patterns.
2.Reduces management workload by dynamically setting management areas
By dynamically setting location areas based on a device's estimated
mobility, the frequency of renewing location registration is reduced by up to
50 percent and the amount of signal processing for paging is reduced by up to
Going forward, in addition to working towards the commercialization of this
technology, NEC will continue to actively engage in the development of cellular
networks and information communication technologies that support the big data
This work was supported by Ministry of Internal Affairs and Communications.
About NEC Corporation
NEC Corporation (TSE: 6701) is a leader in the integration of IT and network
technologies that benefit businesses and people around the world. By providing
a combination of products and solutions that cross utilize the company's
experience and global resources, NEC's advanced technologies meet the
complex and ever-changing needs of its customers. NEC brings more than 100
years of expertise in technological innovation to empower people, businesses
and society. For more information, visit NEC at http://www.nec.com.
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