LONDON Ė Nujira Ltd. has said that it has licensed its Coolteq.L power saving technology to a leading supplier of handset chips. Nujira (Cambridge, England) did not reveal the name of the licensor or the terms of the deal but said it includes multi-million dollar license fees and per-unit royalties.
Nujira's products are based on tracking signal strength and dynamically controlling the power supply to the power amplifier circuit in line with the transmission performance required. The approach is applicable to 3G and 4G cellular base stations, handsets and TV broadcast transmitters. So far Nujira has focused on communication basestation implementations but the company announced it had received a purchase order for a Coolteq.L development platform from a handset OEM back in April 2009.
Nujira asserts that Coolteq.L can double the efficiency of the handset PA, and halve the peak current requirement which is a major constraint for 4G handsets and USB dongles.
Under the licensing agreement, the unnamed chip vendor has agreed to integrate Coolteq.L technology into production ICs aimed at 3G, 3.5G and 4G implementations such as LTE.
"This agreement with one of the market leaders in the mobile handset arena will see Nujira's technology integrated into hundreds of millions of mobile handsets," said Tim Haynes, CEO of Nujira, in a statement. "As mobile internet data rates increase, power amplifier efficiency is becoming a dominant factor in the power consumption of smartphones and USB modems. Coolteq.L is the only power optimization technology which delivers the high bandwidths needed for 3.5G and 4G."
Nujira demonstrated working Coolteq.L test silicon at the Mobile World Congress in February 2010. The company claims that a handset PA with Coolteq.L is twice as efficient during HSUPA and LTE transmissions and 50 percent more efficient during W-CDMA transmissions, compared with the same PA without Coolteq. The company also announced the formation of the OpenET Alliance to develop and publish open specifications for envelope tracking interfaces for 3G and 4G platforms.
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