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May 21, 2018
MAPS™ SLs Emulator for Simulation of Location Based Services in LTE Network

GAITHERSBURG, Md. - GL Communications Inc., a global leader in telecom test and measurement solutions, today announced its enhanced Location Services (LCS) architecture in LTE network briefly, and its latest MAPS™ SLs Emulator solution to meet the requirements in location services testing on LTE networks.

Speaking to the press, the CEO of GL Communications Mr. Vijay Kulkarni said, “LTE is similar to GSM/UMTS network and follows a client/server model with the positioning functionality distributed across LTE radio nodes, eNodeBs (eNB), Mobile Management Entity (MME), Evolved-Serving Mobile Location Centre (E-SMLC) and Gateway Mobile Location Centre (GMLC).”

Mr. Vijay Kulkarni explained, “LPP protocol supports hybrid positioning method, in which two or more position methods are used simultaneously to provide accurate measurements. The LTE Positioning Protocols (LPP and LPPa) are carried in LCS-AP PDUs over established SCTP session between an E-SMLC and MME.

“Location estimation uses hybrid positioning methodologies from the list of positioning methods given below. These positioning methods may be UE-based, network-based, UE-assisted, network-assisted and/or combination of these methods. The main difference is that the network-based measurements do their calculations at the infrastructure, while the UE based measurements do their calculations at the device.”

The standard positioning methods used in LTE network are:

  • Enhanced Cell-ID (network based, handset assisted)
  • OTDOA positioning method (network based, handset assisted)
  • UTDOA positioning method (network based)
  • A-GNSS based positioning methods (handset based, network-assisted)

About GL Communications Inc.

GL Communications Inc. is a global provider of test and measurement solutions and has over the years worked with major telecom equipment vendors, service providers, and system integrators to meet the testing requirements arising at various stages of telecom products development life cycle.

GL offers a broad set of test solutions that help perform all types of testing on networks, from initial system design, to fine-tuning, troubleshooting, live deployment, and monitoring. The products are widely used to verify and ensure 'quality and reliability' of Wireless (4G LTE, 3G, 2G), SONET/SDH, IP, TDM, and PSTN networks.

GL core product development is backed by a strong team of R&D experts to match evolving market and technical challenges in a most cost-effective and innovative way.

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