Full duplex may be the next breakthrough in mobile networking

Gigaom

Stanford startup Kumu Networks didn’t receive much notice at Mobile World Congress this week as the giants of the mobile industry revealed their plans for 2015, but it did get the attention of two rather important mobile carriers. At their separate booths, Telefónica and SK Telecom were showing off a Kumu-built radio transmission system called full duplex, which both carriers said could eventually become one of the key technologies of any future 5G standard.

When the mobile companies pull out the 5G card, they’re usually trying to signal that something is a really big deal, and in the case of Kumu, they could very well be right. What full duplex does is solve a fundamental problem in wireless communications that limits a network’s full capacity potential: the inability to transmit and receive signals on a radio channel at the same time. The problem is known as self-interference, but the concept…

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