4 ms·

Sorry, how is this any different to LTE on 3.4GHz or 2.6GHz? There is literally nothing different between 4G and 5G on this. 4G deployment on 3.4 or 2.6 could e

Sorry, how is this any different to LTE on 3.4GHz or 2.6GHz? There is literally nothing different between 4G and 5G on this. 4G deployment on 3.4 or 2.6 could equally be said to be focussed on small cell, but we also have massive worldwide deployments on 450, 600, 700 and 800MHz. So is LTE also about long range?

rayiner 8y ago
US 5G deployment will leverage spectrum above 24 GHz where it is feasible: https://arstechnica.com/information-technology/2015/10/5g-mobile-broadband-may-use-71ghz-spectrum-to-hit-multi-gigabit-speeds https://arstechnica.com/information-technology/2015/10/5g-mo.... The FCC is working on auctions of 100+ MHz channels in these bands: http://www.telecompetitor.com/fcc-proposes-schedule-for-28-ghz-and-24-ghz-auction http://www.telecompetitor.com/fcc-proposes-schedule-for-28-g.... AT&T already spent more than a billion dollars buying up that spectrum. It’s starting 5G trials at 15 GHz: http://www.lightreading.com/mobile/5g/atandt-5g-trials-to-start-with-fixed-15ghz-tests/d/d-id/722860 http://www.lightreading.com/mobile/5g/atandt-5g-trials-to-st... In the US, almost all LTE deployment is below 2 GHz.
- martinald 8y ago
  24GHz will require line of sight. I can't see how this is going to work for anything more than cell backhaul or fixed wireless access in very rural areas (without trees)?
  - rayiner 8y ago
    At relatively short distances (hundreds of meters), enough radio waves bounce around in the environment to still make it to the receiever. https://spectrum.ieee.org/telecom/wireless/smart-antennas-could-open-up-new-spectrum-for-5g https://spectrum.ieee.org/telecom/wireless/smart-antennas-co.... You need beam forming antennas to take advantage of this fact. See: http://about.att.com/innovationblog/two_years_of_5g_tria http://about.att.com/innovationblog/two_years_of_5g_tria > Learned mmWave signals can penetrate materials such as significant foliage, glass and even walls better than initially anticipated.

rayiner 8y ago

US 5G deployment will leverage spectrum above 24 GHz where it is feasible: https://arstechnica.com/information-technology/2015/10/5g-mobile-broadband-may-use-71ghz-spectrum-to-hit-multi-gigabit-speeds https://arstechnica.com/information-technology/2015/10/5g-mo.... The FCC is working on auctions of 100+ MHz channels in these bands: http://www.telecompetitor.com/fcc-proposes-schedule-for-28-ghz-and-24-ghz-auction http://www.telecompetitor.com/fcc-proposes-schedule-for-28-g.... AT&T already spent more than a billion dollars buying up that spectrum. It’s starting 5G trials at 15 GHz: http://www.lightreading.com/mobile/5g/atandt-5g-trials-to-start-with-fixed-15ghz-tests/d/d-id/722860 http://www.lightreading.com/mobile/5g/atandt-5g-trials-to-st... In the US, almost all LTE deployment is below 2 GHz.

martinald 8y ago
24GHz will require line of sight. I can't see how this is going to work for anything more than cell backhaul or fixed wireless access in very rural areas (without trees)?
- rayiner 8y ago
  At relatively short distances (hundreds of meters), enough radio waves bounce around in the environment to still make it to the receiever. https://spectrum.ieee.org/telecom/wireless/smart-antennas-could-open-up-new-spectrum-for-5g https://spectrum.ieee.org/telecom/wireless/smart-antennas-co.... You need beam forming antennas to take advantage of this fact. See: http://about.att.com/innovationblog/two_years_of_5g_tria http://about.att.com/innovationblog/two_years_of_5g_tria > Learned mmWave signals can penetrate materials such as significant foliage, glass and even walls better than initially anticipated.