DoCoMo paves way for LTE devices

Prototype multi-band power amplifier will allow for lightwight handsets that work on LTE, GSM and CDMA.

Tags: JapanLTE
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DoCoMo paves way for LTE devices NTT DoCoMo's amplifier technology could allow lightweight handsets to work with LTE, GSM and CDMA standards.
By  Roger Field Published  January 24, 2010

Japanese telco NTT DoCoMo has developed a prototype multi-band power amplifier that could pave the way for lightweight, all-in-one mobile phones capable of working with different standards, including LTE, W-CDMA and GSM.

DoCoMo's new amplifier, which accommodates eight frequency bands between 700 MHz and 2.5 GHz, offers output power equivalent to those of conventional single-band amplifiers. The device looks set to pave the way for multi-standard mobile phones that are generally no larger than existing models.

As conventional multi-band phones must employ a separate single-band amplifier for each band, the sizes of these phones will inevitably increase to accommodate new frequency bands for LTE services being launched in markets worldwide, including Japan.

Power amplifiers are used in mobile phones to increase signal power up to levels required for wireless communication.

DoCoMo presented its new amplifier at the 2010 IEEE Radio and Wireless Symposium in New Orleans, Louisiana, USA, on January 11.

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