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LTE Upgrade Will Let Phones Connect To Nearby Devices Without Towers

An anonymous reader sends this excerpt from MIT's Technology Review: A new feature being added to the LTE protocol that smartphones use to communicate with cellular towers will make it possible to bypass those towers altogether. Phones will be able to "talk" directly to other mobile devices and to beacons located in shops and other businesses. Known as LTE Direct, the wireless technology has a range of up to 500 meters, far more than either Wi-Fi or Bluetooth. It is included in update to the LTE standard slated for approval this year, and devices capable of LTE Direct could appear as soon as late 2015. ... Researchers are, for example, testing LTE Direct as a way to allow smartphones to automatically discover nearby people, businesses, and other information.

3 of 153 comments (clear)

  1. They've reinvented CB radio! by Ozoner · · Score: 4, Insightful

    Once there was private peer-to-peer radio. It was called "Ham Radio". But the companies couldn't charge for it, so they made the radios always work through their base stations and called it "Cellular Radio". And of course they removed the peer-to-peer function.

    But wait, now it's back! (in a way that can be monetised of course).

    1. Re:They've reinvented CB radio! by satsuke · · Score: 4, Insightful

      Ham radio (well, packet ax25) is/was so slow that any kind of peer to peer exchange would be almost worthless by modern standards.

      1200/9600baud is fine for station to station packet, but again, worthless for anything more modern.

      Also, the cellular network interfaces with the PSTN, something HAM could technically do, but with a ton of restrictions on content and open to anyone to listen to.

      ham radio has a good place in the toolkit in terms of emergency communications, but only than and only in small pieces until the cell networks recover.

  2. Re:How much is that doggy in the window? (song lin by Anonymous Coward · · Score: 4, Insightful

    500 meters in a terremote, or other disaster, could be a long perilous walk, and LTE Direct could save lives.