Jump to content

nexgencpu

S4GRU Premier Sponsor
  • Posts

    4,413
  • Joined

  • Last visited

  • Days Won

    78

Posts posted by nexgencpu

  1. 5 minutes ago, RAvirani said:

    Something else to note is that in NR TDD config 2, all 13 timeslots are flexible.

    This means cell sites will be able to assign any and all of the timeslots to either download or upload on the fly. This will do wonders for Sprint's speeds when they count. Imagine running a speedtest on an unloaded sector where you used the entire 60 MHz carrier to download and then the entire 60 MHz carrier to upload. That would be fast

    Didn't know it was dynamic, that alone justifies moving all spectrum to NR as soon as possible.

  2. 22 minutes ago, Tengen31 said:

     
    This is my VZW speed

    Sent from my SM-G965U1 using Tapatalk
     

    That's all well and fine, an unloaded tower proves very little, this is comparing two of the same devices in the same location. Its a huuuuuge win for Sprint. Chicago has a ton of folks using all networks and this clearly shows what happens when comparing them under similar circumstances.

    • Like 1
  3. 15 minutes ago, tyroned3222 said:

    Ya, sprint performing on 5G like carriers are performing current with LTE advanced. Sprint will have better averages and coverage, but what happens when average consumer gets on 5G

     

     

    Sent from my iPhone using Tapatalk

    Keep in mind that Sprint is using ENDC to share LTE and 5G spectrum on 5G devices. Its quite a handy tool to balance the load. It will take a huge uptick of NEW customers to saturate the added airlink.

  4. 4 minutes ago, though said:

    I like, however, aren't those typical u/l speeds on Verizon, AT&T, T-Mobile for 4G?

    Are they tho? Think about it for a second, its just more spectrum online, regardless if its 4G or 5G. While peak speeds on those carriers are up there, average is a whole different story. Sprint is saying 100mbs+(vs 20-30mbs on LTE) is very typical on Sprint 5G. 

  5. 41 minutes ago, lilotimz said:

    FDD-TDD limitations due to different radio technologies. Samsung phones has the most advanced radio configs and thus supports the most carriers but have limitations on MIMO streams as in no 4x4 MIMO on any component carriers. Most other devices are FDD+TDD and some are FDD+TDD+TDD but again there are limitations on MIMO streams.  

    Most of Sprints 1.9 network has 4x4 or 2x4 now live  and a large portion on 2.5 is 4x4  so that's a chunk of downlink capacity being traded off. It's a large balancing act and with the turnaround inside of Sprint and with the rudderless leadership, we can see why many projects do not come to fruition.  

    FWIW, FDD+TDD was identified early in the industry on as one potential solution to slow uplink speeds years ago alongside uplink CA using higher order MIMO. It is not the end all solution but a very useful tool in the toolkit if they can figure out how to use it. 

    Forgot about MIMO, thats a biggie.😑

  6. 36 minutes ago, Terrell352 said:

    The LG G7, G8, V40, V50, Pixel 3A, 3A XL, 3, 3XL, S9, S9+, Note 9, S10e, S10, S10 Plus, S10 5G, iPhone XR, XS and XS Max all support it.

    That's plenty of "device ecosystem " and way more than just three 5G devices yet that is being rolled out.

    Sent from my SM-G977P using Tapatalk
     

    As Tim mentioned to me earlier, there is one major downside to mixing TDD/FDD, none of these devices would support more than 2xCA while on TDD/FDD on PCC so you'd lose access to that additional capacity.

    Bottom line, this isn't exactly the be all end all resolution for some of these upload issues.

×
×
  • Create New...