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The end for half-power handsets

29 Dec 2014  | Jeremy Hendy

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As a result of the growing importance of TD-LTE networks, particularly in China and the US, it will be increasingly important for handsets to be able to meet the specifications and support full-power transmissions.

No more MPR
New RF front-end technologies such as Envelope Tracking and Antenna Tuning can now enable handsets to transmit at the full 200 mW/23 dBm even with high-bandwidth LTE signals. This boosts data rates, increases network capacity, extends battery life, and eliminates the need for MPR altogether.

The industry should be demanding full-bandwidth, full-power transmissions from handset suppliers to deliver a true 4G experience to users. Moreover, it is important that support for full-power transmissions on the handset side is complemented with a similar shift to maximum bandwidth allocation strategies on the network side.

However, to effectively enforce the specifications, a unified approach needs to be adopted throughout the entire mobile supply chain. Organisations like the International Wireless Industry Consortium (IWPC) are working to improve collaboration in the mobile supply chain – and of course there is also scope for major operators to take the lead on the issue.

By setting the specifications for handsets from the top down, operators are in a unique position to demand support for full-power transmissions to improve user experiences and make the "half-power handsets" of today a thing of the past.

Turning it up to eleven may still seem a strange thing to want to do—but everyone in the industry needs to realise that the best way to extend battery life and optimise LTE network performance is to crank the transmit power up, not down.

About the author
Jeremy Hendy VP Sales & Marketing at Nujira brings considerable experience of semiconductor sales and marketing across multiple technologies for wireless communication and digital video. Previous positions include Marketing Director of wireless USB start-up Artimi, VP Marketing for Aspex Semiconductor, and Strategic Technology Director of Cadence's Wireless and Multimedia business unit. He started his career with Texas Instruments, and holds a first class honours degree in Electronic Engineering from the University of Liverpool.

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