By GoingWimax.com
Monday, February 15, 2010
Sequans Communications has released mimoMAX 2.0. It’s an improved version of their patented technology leading the way in its new WiMax semiconductor solutions. mimoMAX combines maximum likelihood MIMO decoder on the downlink with dual independent transmit channels on the uplink.
The two uplink channels can combine the output power of the two transmitters and immediately realize a 3 dB gain, improving signal range and throughput. mimoMAX 2.0 adds a 2Tx Closed Loop Diversity that improves the uplink performance. It accomplishes this through adding diversity gains of up to 2.5dB for an 5.5 dB overall gain.
“Every WiMAX device has two antennas and you must have two transmit channels on the uplink to fully exploit this, said Georges Karam, Sequans CEO. “Sequans was the first and is still the only chipmaker providing this capability, and now with our new 2T CLD algorithm we have enhanced it. 2T CLD dynamically selects the best diversity for a given channel environment—switched diversity or full diversity – delivering link budget gains well beyond the primitive single Tx solutions available today. The gains enabled by this technology can dramatically improve indoor penetration, cell-edge and network entry performance, and throughput. This translates into significantly improved operator economics and end-user satisfaction.”
mimoMAX 2.0 optimizes 2Tx through channel condition information from the downlink, perfecting the use of dual transmit antennas on a tone-by-tome and frame-by-frame basis. It guarantees the best possible uplink performance at every sub-carrier frequency in the channel. Combining the output power of the two channels, it increases the uplink transmit power of WiMax devices.
Sequans’ SQN1200 series of Mobile WiMAX semiconductor solutions are the most advanced and most highly integrated chips in the industry. Along with mimoMAX 2.0, they deliver baseband and triple band RF integrated in a single, 65 nm die, delivering ultra low power consumption and high throughput at a very low cost.
Sequans announced a recent partnership with
Photo Courtesy of quinn.anya via Flickr
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