Saturday, 9 May 2015

Couple of Satellite Backhaul Presentations

After publishing the emergency communication options last week, I was made aware of couple of recent presentations on Satellite backhaul options. The first one is from Richard Deasington of iDirect at MWC 2015:

The other one is from Vince Onuigbo of Hughes. As can be seen above, the biggest issue with Satellites is the latency which is 600ms for the geostationary satellites. Anyway, here is their presentation:


  1. Manoj Das (via Het Net (Heterogeneous Networks- 3GPP/3GPP2 and IEEE networks) Linkedin group)10 May 2015 at 10:23

    Thanks Zahid. Although its very much possible small cell backhaul through satellites, satellite latency budget is much higher than LTE requirements. Secondly, since its only meant for rural areas, I am assuming there would not be X2 interface, if it does exist, I am not sure how the latency will play the role to establish X2. Any field trial result will be very helpful.

  2. Rao Yv (via Het Net (Heterogeneous Networks- 3GPP/3GPP2 and IEEE networks) Linkedin group)10 May 2015 at 10:47
    must cut down prices on GSM calls originated from Pacific Ocean, Atlantic Ocean & Aircraft flying 30000 feet above sea level...

  3. Thanks Rao, agree that Satellite operators need to get the prices down. Its happening, give it a couple more years and they will be very competitive.

    Manoj, agree with the high latency but sometimes there are no options. I am aware of some trials but not sure of the details, will try to find out. With regards to X2, it wont be practical with the satellite backhaul. There are other arrangements where a mesh has been formed between multiple small cells using another backhaul technology like 5GHz WiFi and only one small cell has satellite as the backhaul to connect to the core. Again, not sure of the results and whether any workarounds were done/required.

  4. Wade Sarver (via Het Net (Heterogeneous Networks- 3GPP/3GPP2 and IEEE networks) Linkedin group)11 May 2015 at 20:19

    In the US the public safety group FirstNet will require satellite backhaul for their remote and emergency deployments for LTE.

  5. See also: KT Develops World’s First Satellite Broadband LTE Technology - Baengnyeongdo Declared as ‘Giga Island’ - - KT is using fiber, microwave and satellite as backhaul in the border regions with North Korea. In case when fiber and microwave is not available, satellite backhaul comes into play.