Tuesday, 03 March 2009 
China Mobile, Verizon Wireless and Vodafone Trials Confirm LTE as a Next Generation Candidate PDF Print E-mail
Wednesday, 18 February 2009

China Mobile, Verizon Wireless and Vodafone have conducted joint laboratory trials of the Time Division Duplex (TDD) version of LTE (TD-LTE), showing that the technology is capable of operating effectively in unpaired as well as paired spectrum. The LTE testing alliance, which has also conducted field tests of LTE Frequency Division Duplex (LTE FDD), aims to develop a converged LTE FDD and TD-LTE system to enable an effective solution for both FDD (paired) and TDD (unpaired) spectrum.

China Mobile, Verizon Wireless, a joint venture of Verizon Communications and Vodafone, and Vodafone announce that they have taken significant steps in developing the next-generation technology LTE as a truly global radio access technology, following yesterday’s LTE FDD/TDD Convergence Summit at the Mobile World Congress in Barcelona.

As part of their ongoing three-way trials, the operators have successfully demonstrated in laboratory conditions the time division version of LTE (TD-LTE) showing that the technology is capable of operating effectively in both unpaired as well as paired spectrum.

In addition to these initial results, a range of chipset suppliers including ST-Ericsson and Qualcomm are developing equipment capable of supporting both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) flavours of the LTE technology in a single device.
The trials are a step towards the goal of developing a single device capable of operating on TD-LTE technology in the case of unpaired spectrum or LTE FDD technology in the case of paired spectrum.

The availability of a converged LTE FDD and TD-LTE system is set to enable an effective solution for both paired and unpaired spectrum. This also raises the prospect of providing greater interoperability between different global operators offering customers greater levels of convenience.

The TD-LTE portion of the trial, which involves seven vendors, will progress to full field trials in the second half of 2009. The locations for these field trials have been agreed in China, Europe and India.

The corresponding LTE FDD trials are progressing as planned and are now well into the final field trial stages where peak download speeds of up to 50 to 60 Mbps using 10 MHz bandwidth have been demonstrated. These field trials, which will also be introduced for the TD-LTE trials, create real-world loaded network conditions by using multiple base stations and terminal devices.

LTE’s potential as a flexible global technology with a strong eco-system was the core theme presented at yesterday’s LTE FDD/TDD Convergence Summit. The event attended by regulators, operators and vendors, was jointly hosted by China Mobile, Verizon Wireless and Vodafone with an endorsement from the GSMA and TD Alliance.

LTE technology is designed to deliver a range of customer benefits including higher speeds and enhanced throughput performance and lower latency thanks to improved spectral efficiency.

LTE is an evolution of existing 3G (WCDMA, TD-SCDMA and CDMA) cellular networks and has the advantage of offering inter-working with existing 3G technologies.

About China Mobile
China Mobile has been playing a leading role in the development of the mobile communications industry in China and holds an important position in the international arena as well. After over ten years of efforts, China Mobile has established a comprehensive network with large coverage, high quality, rich variety of businesses and first-class customer services. With more than 360 thousand mobile base stations and more than 450 million subscribers, China Mobile ranks first in the world in terms of network scale and customer base.

For eight consecutive years, China Mobile has been listed in Fortune 500 with a latest ranking of 148.

About Verizon Wireless
Verizon Wireless operates the nation’s most reliable and largest wireless voice and data network, serving more than 80 million customers. Headquartered in Basking Ridge, N.J., with more than 85,000 employees nationwide, Verizon Wireless is a joint venture of Verizon Communications (NYSE: VZ) and Vodafone (NYSE and LSE: VOD).

About Vodafone
Vodafone is the world's leading international mobile telecommunications company, with equity interests in 27 countries and Partner Markets in more than 40 countries. As of 31 December 2008, Vodafone had approximately 289 million proportionate customers worldwide.

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