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    • By lilotimz
      Ericsson AIR6488 B41 Massive MIMO Antenna Radio Unit
      This 64T64R Massive MIMO units will be likely found in Ericsson vendor territory from network vision days. It will be easily identified by it's lack of an external remote radio like Sprints typical LTE equipment and its size being significantly smaller than Sprints existing 800,1.9, and 2.5  equipment. 

      Source: Sprint

      Additional Photos from FCC Filing
    • By lilotimz
      Ericsson RRUS82 2.5 GHz 8T8R
      Now being found in Ericsson vendor territory, these augment the existing Nokia Flexi 2.5 8T8R radios in place.

      Photo Credits: mdob07
    • By lilotimz
      Ericsson RRUS31 B25 + RRUS11 B26
      These are the newest and greatest remote radio units to come from Ericsson. 

      The new Ericsson RRUS31  B25 should be fairly distinctive compared to the earlier RRUS11s and now the RRUS12s being deployed by ATT and Verizon. One of these new RRUS31s can do the job of two earlier RRUS11s thus reducing deployment costs for Sprint and complexity in deploying new sites and making it easier for users to spot as there are now 4 jumpers coming out of one RRUS31 rather than two from each RRUS11 that Ericsson originally deployed. 

      All future deployments will be utilizing the new Ericsson RRUS31s. In addition Ericsson are sending crews to their original deployments and swapping out older RRUS11s for these new RRUS31s due to the aforementioned fact that one RRUS31 can do the job of 2 RRUS11s. Weight savings will be significant at sites where there are 4 or 5 RRUS11 B25s that can be replaced by one or 2 RRUS31s. The Ericsson RRUS31 deployment project is known as the 65 Mhz Project. 


      Ericsson RRUS11 B26 top and RRUS31 B25 bottom


      Ericsson High Capacity / 4x4/2 MIMO Deployment
      Note the additional antenna + PCS radio.
      Previously Ericsson utilized additional PCS radios and used RF combiners for high capacity setups where they utilized three or more PCS radios. This new setup will utilize a completey new antenna + radio set just like Samsung and run 4x2 MIMO on the LTE antenna / radio set. 



      Ericsson RRUS11 B25 [EOL'd] and B26
      A standard Ericsson Network Vision 1.0 site with 3 RRUS11s where two are dedicated to PCS and one to SMR.  

      This type of setup is no longer deployed or utilized in new sites. Existing sites will be slowly converted to newer RRUS31 B25 via the Sprint 65 mhz project. 

      Ericsson NV high capacity site [EOL'd]
      3 or 4 PCS RRUs are present for a total of 4 or 5 RRUS11s per antenna. 



      Close up of Antennas

      Ericsson cabinets 

      All credit to those who took the photographs. They know who they are!
    • By lilotimz
      Hello everyone!
      It is the belief of myself and of the staff that it is time to reopen a new T-mobile LTE and Network discussion thread due to the implementation of "network prioritization" that tmobile is doing to its subscribers. 
      As Sprint has similar language in its TOS, we believe that it is worthy of being discussed here as Sprint may do something similar on a site by site basis.
      This thread will be strictly for discussing T-mobiles LTE network and technologies and not about personalities, their followers, and etc etc which may be better suited for S4GRUs sister site for T-mobile T4GRU. 
      As a result this thread will be heavily moderated to stay on topic but I view the S4GRU member base very favorably and trust that we won't have much problems here.
    • By lilotimz
      Ericsson RBS 6501 B25 Outdoor Micro Base Station
      Model: KRD901 125/X
      RBS 6501 setup utilizing the integrated antenna

      RBS 6501 utilizing external omnidirectional antennas

      Ericsson RBS 6401 B25, LTE
      Multi-standard indoor pico base station
      Model: KRD 901 043





      Top without External Antenna Capability

      Top with External Antenna Capability

  • Posts

    • I started working on the Raspberry Pi 3b Plus tonight with an Sierra Wireless em7565. This one has all those cool features that I was describing up top. Not bad for ~39 bucks. I was waiting for a few open source firmwares to get through the compilebot6k's toobs; this one is built now. Some use modem manager or openWRT for the router side. This LTE radio is band(s) 2/26/41 capable on the Sprint side. Band 25 did not make the cut, but was on previous Sierra builds. This is a tester radio so there is a slight chance it will appear down the road. It has just about every other LTE band.  

      This is an example of the debug screen. GMO is nearest so we only get 26 from a far site. No 41 in our zip yet. 
      The best part is I can plug an MC7455(that would be Modem#2) or another EM7565 in and it can hop over to that or I can direct load balancing. I just wanted to show the EM7565 authenticated below. Another shot of my terrible reception. Here it is out of the armor.

      So, we have a stable software image. I will get it built and add some GPS features, then test on band 41 in Myrtle where present. We have one site w 8t8r gear to test 3xCA on, so it might be a minute. I am in 2xCA MM areas through the week. I will see how it likes the Magic box too. 

      I should have a true GB ethernet router to massacre in the next couple of weeks with software images already set to go. I can embed the radio beyond a USB adapter. It still requires m.2>mPCIe but that is one less failure point and better throughput. This was a great breakthrough in affordable and small solutions for us.  I have to go to bed and then work now.

      Have a great week everyone.
    • Thank you so much for bringing light to this! I would have never known about it had you not posted it! You've saved me a lot of money and lowered my bill moving forward! It wasn't an easy process, but well worth it. Unlocking the phones was surprisingly easy. But the small hiccup came with my final bill. When I received it, I thought I was screwed when I saw that the ETF was included. I almost paid for it too, but the frugal in me decided to call Sprint (couldn't hurt, right?). After an hour on the phone with a US supervisor, my account was credited for the full amount of the ETFs. I walked away Scot-free!! Thanks a bunch OP! I'm trying Verizon's throttled unlimited data plan. Excellent reliability in the city, but there are certain key spots where I need my phone that aren't great. I don't know if it's the throttling or the network.
    • I see more mass upgrades by TMO on 600mhz -- it seems they did an amazing and fast roll out. If I recall folks here thougt TMO wouldn't be able to see much strides for a year plus.

      Reason I bring it up is TMO can't have much more free cash than Sprint. Yet can operate fast and lean.

      Positive note Sprint has rocked it's upgrades this past year...

      Sent from my XT1635-02 using Tapatalk

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