full duplex

  • Full Duplex: DT, SKT, Stanford Guys Say Close

    Cambridge full duplex LTE highresSame frequency, same time, ?double wireless speeds. Today, self-interference makes it impractical to send and receive at the same time on the same frequencies. Testing at Deutsche Telekom and SK Telecom suggests Moore's Law is bringing enough processing power to change that. (pr below.) They are working with Kumu Networks, a spinoff from the lab of Stanford's Philip Levis. Their extraordinary advisory board gives them extra credibility.

    Research on Full Duplex is hot.  An article by Sabharwal et. al. lists 141 papers (below.) At Columbia,  Harish Krishnaswamy has developed chips. At a Cambridge Wireless meeting, David Lister of Vodafone concluded, "We can consider the problem of self-interference cancellation as solved. Now is the time to consider system requirements and assess the use cases. There are still major challenges to overcome."

    Joel Brand of Kumu is confident. "By the second half of 2016 we could ship full-duplex solutions for infrastructure applications where the requirements are a bit more relaxed than in a mobile phone." WISP backhaul would be a natural niche for this kind of product. 

    Some are skeptical about the potential to double performance in the real world.

5GW News

dave rightStarting July 2017, all new articles are at wirelessone.news. The pols and the marketing folks have made "5G" a meaningless term so the name doesn't fit reporting on advanced wireless. This will stay so old links work. I've reported broadband since 1999 and now is the time for gigabit wireless. Catch a mistake or have news? Email me please. Dave Burstein