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           13 May, 2021

Category:  Press » Science


LTE UE Stack from L&T Infotech Accelerates Availability of LTE Terminal Devices

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2009-11-05 04:58:23     
L&T Infotech

L&T Infotech announced today the availability of its 3GPP release LTE UE (User Equipment) protocol stack (Ver 8), helping to reduce time-to-market of LTE terminal devices.

L&T Infotech has developed LTE protocol stack, leveraging its vast experience in wireless technologies like CDMA, UMTS, EVDO, WLAN and WiMAX. The solution comprises Access Stratum and Non Access Stratum (NAS) layers as defined by 3GPP standards. L&T Infotech's LTE UE stack is compliant to March '09 3GPP Release 8, LTE specifications. The design is modular to accommodate further releases of the Release 8 Standard. The implementation is agnostic of underlying operating system and hardware. The data plane (MAC, RLC and PDCP) is extensively tested for all 8 Data Radio Bearers (DRBs) at UE simultaneously, with both Tx and Rx path configurations for various combinations of UM and AM mode. The Control Plane (RRC and NAS) supports L2/L1 configurations, bearer establishment, cell selection and mobility procedures.

"L&T Infotech believes that LTE is the clear evolutionary path for existing technologies of 3GPP origin and also for 3GPP2, CDMA technology for meeting the IMT-Advanced requirements. Hence, L&T Infotech is committed to provide products and solutions to reduce time-to-market of LTE devices to operators, OEMs and chipset manufacturers," said Mr. Sudip Banerjee, Chief Executive Officer, L&T Infotech.

"L&T Infotech's LTE UE stack product enables our customers access to LTE protocol implementation, with proven test compliance to 3GPP-defined test suites. The LTE UE stack supports different UE categories based on the form factor and target platform. Extensive diagnostic and configuration tool of the LTE UE stack provides comprehensive view of the stack behavior with statistics of data packets flow across L2 layers, QoS Parameter fine tuning, RSSI, CINR measurements, and logging facility," said Mr. Isaac Sundarajan, Executive Vice President, Product Engineering Services BU, L&T Infotech.

L&T Infotech has extensively tested its LTE UE stack with the R&S CMW500 virtual LTE test environment from Rohde & Schwarz using both MLAPI and LLAPI interfaces. "We are extremely pleased to share the value of our T&M products in the LTE UE stack program at L&T Infotech," says Michael Altmann, head of Product Management Mobile Radio Testers from Rohde & Schwarz. "Rohde & Schwarz has been helping build state-of-the-art instrumentation capability to accelerate LTE products into the eco-system," he explains. "R&S's active participation in the 3GPP standard body provides an early and appropriate test environment for LTE products. By using the R&S CMW500 wideband radio communication tester, the powerful LLAPI/MLAPI programming interfaces, and customized test scenario packages, Rohde & Schwarz makes a perfect combination of test equipment and test cases available to mobile phone manufacturers to ensure that their LTE signaling tests are performed quickly, efficiently, and cost-effectively."

LTE devices could be of multi-mode device type, where LTE could reside alongside the existing 3G protocol stack or as standalone LTE devices where it could be packaged as USB dongles. Based on the form factor and applicability of the LTE stack, RRC and NAS layer is kept modular so that existing 3GPP technology stack could leverage the existing NAS implementation to access the different Radio Access Technology stacks. As L&T Infotech understands highly demanding throughput and timing constraints of LTE UE, the modules of L2 are kept modular to provide the flexibility in placing the time-critical components close to hardware and PHY implementations.

About L&T Infotech

Larsen & Toubro Infotech Ltd. (L&T Infotech), one of the fastest-growing IT Services companies, is ranked No. 5 globally among the Best IT Services Providers by Global Media Services in 2009, ranked 11th by NASSCOM among the top software and services exporters from India and also ranked among the "Leaders" category in the prestigious Global 100 list released by the International Association of Outsourcing Professionals (IAOP).

The Product Engineering Services Group at L&T Infotech has a proven track record of developing and deploying telecom technologies, products, applications and platforms for renowned telecom players across the globe. We provide software and hardware engineering services to leading OEMs, ODMs, chipset vendors, Telecom carriers and ISVs. We support clients in the areas of chip design, hardware design, firmware, middleware, software engineering, applications & content all the way from design, development to deployment.

Our Telecom Domain Expertise spans across: Infrastructure; Mobile Devices; Entertainment Products; Computing, Storage & Data Networking; Test & Validation; VLSI Design; and Hardware & Platform.


Anand Aashay
L&T Infotech
+91 9820599393

Specialized in: Larsen And Toubro Infotech - Lnt Infotech - It Services And Solutions - Offshore - Outsourcing - Business Consulting - It Consulting - Software Development Company - Indian Software Company - Frameworks - Accelerators
URL: http://www.lntinfotech.com
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