Voice calls over 4G LTE networks are battery killers

VoIP may be the future on mobile communications, but new findings from testing outfit Spirent show the technology needs to improve its power efficiency if it’s to become viable. Its tests found that a VoLTE call consumes twice as much battery life as a 2G call.

Nujira raises $12M to stem LTE’s hunger for energy

Nujira has developed technology that eliminates the enormous energy waste of LTE radios. By utilizing a technique called envelope tracking it matches the power fed into the handset with the power it transmits, which could cut down smartphone battery drain by a quarter.