Telsima announced WiMAX 450/700 MHz gear at the India Telecom 2007 show at New Delhi, 2007. The Telsima solution can be customized for any specified band within that range — by default it supports the 450 MHz and 700 MHz bands.

Telsima uses standard WiMAX SoC, leveraging all the benefits of this open standard point-to-multipoint technology, making way for unmatched set of rich features at low cost.

“Compared to the typical 3.5 GHz based BWA systems, a Sub-GHz band based network requires approximately 18 times less infrastructure per square kilometer coverage”, according to Burcak Beser, CTO Telsima. The Telsima WiMAX 450/700MHz platform delivers VoIP, Video Services and high-speed Data while supporting different bandwidths, with Nomadic and Mobility support.

Telsima’s 700MHz solution may allow operators to offer mobile services, MIMO antenna diversity and ASN type network control today. ASN Gateways connect the WiMAX Radio Access Network to the IP core,

Mobile WiMAX radios can switch between automatically between MIMO A and MIMO B. MIMO B operates in “spatial multiplexing factor 2″ which effectively doubles the bandwith of the transmission link - but only if there is low correlation in the 2 antenna signals and the signal to noise ratio is high. MIMO A “spatial diversity”, provides the same speed, but adds much robustness to the link and increases the range of the cell.

VSNL plans to inves about $500-600 million for rolling out WiMAX services in 35 cities across India over the next three years. VSNL, a Tata Group company, India’s largest conglomerate company, has tied up with Telsima for WiMAX gear. It would launch the service in Bangalore and then cover other major cities like Delhi, Mumbai and Hyderabad in the first phase. In the second phase, the company plans to reach to customers in about 35 cities across the country — mainly consisting of all the state capitals.

In other news, Sequans says its now delivering the SQN1140, their fourth Mobile WiMAX chip, following a Mobile WiMAX Wave 1 chip in 2006 and two baseband Mobile WiMAX Wave 2 chips in 2007 for base station and mobile stations. Sequans provides dual transmit and dual receive MIMO operation and is designed to support the advanced MIMO technology with low power consumption.

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Sam Churchill and Don Park run the DailyWireless.org website which summarizes the news from Community Lan and other industry related sectors with detailed updates from around the world. It is full of sausy talk, viscious rumors and tantilizing tidbits.

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