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LTE Group Defines Interoperability Testing Standards

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The LTE SAE Trial Initiative (LSTI), a global group of LTE equipment vendors and operators, has outlined plans for cross vendor device to network interoperability testing of LTE. In an initial step, a common set of features for LTE Frequency Division Duplex (FDD) and Time Division Duplex (TDD) equipment is being defined as the basis for early interoperability tests between devices and infrastructure. This feature set definition is expected to be complete by the end of 2008 and will be followed by interoperability tests across infrastructure equipment, mobile devices, and chipsets from the various LSTI member companies.

These cross-vendor interoperability tests will foster increased industry synergies, consolidated 3GPP specifications, smoother LTE network launches, and improved LTE time to market.

"LTE is positioned to become a global standard for mobile broadband networks," said Dr. Jinsung Choi, vice president of LG Electronics Mobile Communications Technology Research Lab. "Having common LTE specifications and achieving widespread interoperability across LTE networks regardless of who designed, built, or operates them will simplify the worldwide adoption of LTE. The network essentially becomes invisible to consumers, making connecting from anywhere in the world as simple as turning on your mobile device."

The initial device-to network interoperability tests will focus on basic connectivity and high-speed data transmission over LTE networks, including more advanced features such as high quality video. LSTI plans to begin cross-vendor interoperability testing in 2009, on the basis of 3GPP specifications which are planned for closure in the fourth quarter of 2008. This testing phase follows the LTE proof of concept work that LSTI is currently undergoing to show what the technology is capable of, including demonstrations of the download speeds needed to support high-bandwidth mobile applications such as high definition video streaming. Proof of concept work started with the FDD version of LTE and now LSTI is also developing the proof of concept validation for the TDD version of LTE to support various spectrum requirements globally.

LSTI's efforts to accelerate development of the LTE technology and ecosystem have recently been enhanced by the addition of several new members to the trial initiative. The latest companies to join LSTI are Agilent Technologies, Motorola, Rohde & Schwarz, and Telefonica.

LSTI is also working in close cooperation with the NGMN Alliance to further enhance the LTE ecosystem by ensuring that the tests which LSTI performs reflect the needs and perspectives of operators.

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Tags: telefonica  lte  lg  3gpp  lg electronics  chipsets  tdd  interoperability  agilent  ngmn alliance