5G on junk spectrum how??

Adobe fEYEoV
Mar 7 16 Comments

I'm no spectrum expert but I can't grasp my head around how 5g is going to work on mmwave? I get that mmwave can carry large amounts of data but it's just so unstable. I mean these telecommunication companies will have to deploy ridiculous numbers of cell sites. Please help me understand. Lol. But I'm generally excited for the day we don't have to drive our own cars.

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TOP 16 Comments
  • Verizon XobO37
    Att already has 5g /s
    Mar 7 4
    • Sprint Chickenlip
      Yeah they do*
      Mar 7
    • Sprint Chickenlip
      *In Bell Lab, one room...sorta.
      Mar 7
    • Hey!!
      Mar 7
    • Sprint Chickenlip
      Well...c'mon. We all know how our marketing departments shit the bed.
      Mar 7
  • AT&T / Data Mr.Fix
    We are deploying a ridiculous amount of small cell towers, so is Verizon. It will work, just only in cities. 5G in the ritual areas won’t be quite as capable.
    Mar 7 2
    • Intel UGeJ58
      I doubt it will ever be economical. There is no city exodus (yet)
      Mar 7
    • Qualcomm dynasty001
      5G is really meant for dense urban areas. The mmwave cannot penetrate buildings.
      Mar 7
  • Broadcom Ltd. rFkd21
    Such an amazingly broad question. Although propagation loss is high, antenna gain is also high, so it should in theory work. Problem is practical considerations in 20-30 GHz bands are just starting to be looked at now, and so it’s kind of a science project. On the plus side, early meAsurements show prop delay and fading is not as bad as worst case expectations.
    Mar 7 2
    • Intel UGeJ58
      Case closed this is the expert
      Mar 7
    • Intel / Product starlens
      While it's true that antenna gain is higher at such frequencies (because the smaller wavelength makes the antenna appear electrically larger), the OP is correct that connections are less stable when your frequency is in the tens of gigahertz.

      Here's why:
      1. high antenna gain implies that the beam is highly focused, and can easily get deflected off its path by any obstruction.

      2. waves in the tens of gigahertz don't penetrate through walls or obstacles as well as waves in the 100s of megahertz or in the low gigahertz.
      Mar 7
  • AT&T / Eng GuvY64
    Because the range for a radio is only a few hundred yards and not 4 miles, doesn’t matter as much. Also removes the FCC from the equation mostly (for spectrum licensing).
    Mar 7 1
    • Intel UGeJ58
      The FCC has forced this technological jump
      Mar 7
  • T-Mobile EKVe82
    Yeah you got it exactly right--we're deploying a ridiculous number of small cell sites.
    Mar 7 0
  • VMware BobbleHat
    Mesh network time?
    Mar 8 0
  • Visa xcsgV72
    Yeah I always saw it as WiFi++ not 4G++
    Mar 7 0

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