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Thread: Band 25 and 26 deployed

  1. #1
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    Band 25 and 26 deployed

    Downtown Calgary.

    //edit: Looks like MFBI: 2436 on B5, and 675 on B2, same width.
    //edit2: Looks like 2 pairs of Band 2s: 15MHz on 675; 10MHz on 1050.



    Last edited by duwenbasden; 04-16-2018 at 05:59 PM.
    Duwenbasden
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  2. #2
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    What phone are you using? My s9 doesn't have band 26 available. When you dial *#2263# does it show band 26 available?

    Sent from my SM-G960W using HoFo mobile app

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    Galaxy S8 G950F. Afaik 26 and 28 are traded for 29 and 30 on the W; the U still have 26 and 28 available.

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    Hmm I wonder what the rush is to deploy MFBI on B2. Do they have a big CA combo coming up with B25?
    Want to learn more about how LTE works?
    https://productioncommunity.publicmo...ls/td-p/130581

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    Quote Originally Posted by duwenbasden View Post
    Galaxy S8 G950F. Afaik 26 and 28 are traded for 29 and 30 on the W; the U still have 26 and 28 available.
    I asked the specs for the G960W on the chat and they said the XAC has 26, 28, even 71, however the carriers block it.

    Sent from my SM-G960W using HoFo mobile app

  6. #6
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    Nice find.

    Nothing here in Vancouver yet, I only see some very rare 5MHz B5 EARFCN 2426 on a few sites and some theoretical 10MHz 2nd B2 carrier at EARFCN 650 being advertised. The B5 carrier does not support MFBI.

    They have also been advertising a 2nd 20MHz B7 carrier for at least a year or so at EARFCN 2950, but have never seen it live either.

    Interestingly enough, Telus started to list B25 EARFCN 8640 in some towers with B13 deployed. I have not seen it live either, however.

  7. #7
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    Quote Originally Posted by sheytoon View Post
    Hmm I wonder what the rush is to deploy MFBI on B2. Do they have a big CA combo coming up with B25?
    Good question, especially since both of those are within B2/B5. I know Qualcomm modems, when locked to B25/26, will indicate B2/B5 carriers with their corresponding B25/26 EARFCNs, even if the network does not support/broadcast MFBI. This could be the case here, but we would need SIB1 to say for sure.

    I don't see why deploying it will hurt (apart from Huawei licensing fees, which probably sell MFBI as a separate feature). Enabling MFBI will provide more CA combos as you mentioned, and since B5 is used internationally (mostly in Asia IIRC), but B26 is North America only, it will allow for more North America specific CA combos. This isn't as big of a deal with the latest 3GPP release, but previous releases had very low CA combo limits (128 IIRC), so UE manufacturers had to choose their combos wisely, especially with world devices.

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    Here is the specs for U model:
    Network
    Frequencies and Data Type 2G CDMA
    CDMA800,USPCS1900
    2G GSM
    GSM850,GSM900,DCS1800,PCS1900
    3G CDMA
    BC0(800),BC1(1900),BC10(800)
    3G CDMA Diversity
    BC0(800),BC1(1900),BC10(800)
    3G UMTS(WCDMA)
    B1(2100),B2(1900),B4(AWS),B5(850),B8(900)
    3G UMTS(WCDMA) Diversity
    B1(2100),B2(1900),B4(AWS),B5(850),B8(900)
    3G TD-SCDMA
    B34(2010),B39(1880)
    4G LTE FDD
    B1(2100),B2(1900),B3(1800),B4(AWS),B5(850),B7(2600 ),B8(900),B12(700),B13(700),B14(700),B17(700),B18( 800),B19(800),B20(800),B25(1900),B26(850),B28(700) ,B29(700),B30(2300),B66(AWS-3),B71(600)
    4G LTE TDD
    B38(2600),B39(1900),B40(2300),B41(2500),B46(5200)

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    Is this info reliable?
    https://www.frequencycheck.com/model...e-samsung-star

    B1 (2100), B2 (1900 PCS), B3 (1800 +), B4 (1700/2100 AWS 1), B5 (850), B7 (2600), B8 (900), B12 (700 ac), B13 (700 c), B14 (700 PS), B17 (700 bc), B18 (800 Lower), B19 (800 Upper), B20 (800 DD), B25 (1900 +), B26 (850 +), B28 (700 APT), B29 (700 de), B30 (2300 WCS), B32 (1500 L-band), B38 (TD 2600), B39 (TD 1900 +), B40 (TD 2300), B41 (TD 2500), B46 (TD 900), B66 (1700/2100), B71 (600)

    If this correct, then the Canadian s9 could connect to band 26.

  10. #10
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    According to Samsung canada http://www.samsung.com/ca/support/model/SM-G960WZPAXAC its no compatible

  11. #11
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    B26 is used in Asia (Japan (B18) and China in the future specifically) afaik, for their conversion from CDMA.

    Quote Originally Posted by zivan56
    Good question, especially since both of those are within B2/B5. I know Qualcomm modems, when locked to B25/26, will indicate B2/B5 carriers with their corresponding B25/26 EARFCNs, even if the network does not support/broadcast MFBI. This could be the case here, but we would need SIB1 to say for sure.
    my S8 has the Shannon 355 modem.

    Also, iirc, 25+26 CA combos are limited to Sprint's bands so far, whereas B2 and 5 have far more combos.

  12. #12
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    While it is overlapping spectrum, the CA combos would be much more specific to Japan. You can filter out by band on this site to see, where it shows quite a bit more CA combos with 26 compared to 18.

    It's not just specific to Sprint, but some of the combos are very Sprint specific.
    Rogers could use
    7A-26A
    25A-26A
    26A-46A (LAA)

    IIRC Rogers has some 3500 spectrum as well that falls under B48, so 26A-48A could be potentially used as well.

  13. #13
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    Interesting. I've been connecting to band 26 on my Essential phone here in West Kelowna a few times now. A solid signal, too. I wondered where it was coming from.
    Un-Rogered, and getting better 'value'.

  14. #14
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    I'm seeing traces of a 2nd B2 carrier (EARFCN 650) with MFBI for B25 in Vancouver:
    Code:
    LTE RRC Signaling Messages
      Version : 15
      RRC Release Number : 13
      RRC Version Minor : 1
      RRC Version Major : 2
      RB ID : 0
      Physical Cell ID : 85
      E-ARFCN : 650
      SFN : 27013
      Channel : 2
      Bitmask of SIBS : 2
      Message Length : 28
      bcch-dl-sch
        message
          c1
            systemInformationBlockType1
              cellAccessRelatedInfo
                plmn-IdentityList
                  PLMN-IdentityList[0]
                    plmn-Identity
                      mcc
                        MCC[0]
                          MCC-MNC-Digit : 3
                        MCC[1]
                          MCC-MNC-Digit : 0
                        MCC[2]
                          MCC-MNC-Digit : 2
                      mnc
                        MNC[0]
                          MCC-MNC-Digit : 7
                        MNC[1]
                          MCC-MNC-Digit : 2
                        MNC[2]
                          MCC-MNC-Digit : 0
                    cellReservedForOperatorUse : notReserved
                trackingAreaCode : 8908(16 bits)
                cellIdentity : 61AB4150(28 bits)
                cellBarred : notBarred
                intraFreqReselection : allowed
                csg-Indication : false
              cellSelectionInfo
                q-RxLevMin : -60
              freqBandIndicator : 2
              schedulingInfoList
                SchedulingInfoList[0]
                  si-Periodicity : rf8
                  sib-MappingInfo
                    SIB-MappingInfo[0]
                      SIB-Type : sibType3
                SchedulingInfoList[1]
                  si-Periodicity : rf64
                  sib-MappingInfo
                    SIB-MappingInfo[0]
                      SIB-Type : sibType4
                SchedulingInfoList[2]
                  si-Periodicity : rf64
                  sib-MappingInfo
                    SIB-MappingInfo[0]
                      SIB-Type : sibType5
                SchedulingInfoList[3]
                  si-Periodicity : rf64
                  sib-MappingInfo
                    SIB-MappingInfo[0]
                      SIB-Type : sibType6
              si-WindowLength : ms10
              systemInfoValueTag : 4
              nonCriticalExtension
                lateNonCriticalExtension
                  multiBandInfoList
                    MultiBandInfoList[0]
                      FreqBandIndicator : 25
                nonCriticalExtension
                  cellSelectionInfo-v920
                    q-QualMin-r9 : -18
    Also, eNB IDs are changing from 9xxxx to 4xxxx, could they be moving to Ericsson hardware?

    Update: looks like they are moving from Huawei to Ericsson. Impressive change as now both B2 carriers and B5 are 4x4 MIMO!
    Last edited by zivan56; 05-30-2018 at 12:38 PM.

  15. #15
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    Quote Originally Posted by zivan56 View Post
    Also, eNB IDs are changing from 9xxxx to 4xxxx, could they be moving to Ericsson hardware?

    Update: looks like they are moving from Huawei to Ericsson. Impressive change as now both B2 carriers and B5 are 4x4 MIMO!
    Well, that didn't last long... not even 4 years!

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