Jump to content
WiWavelength

Network Vision and Spark EARFCN logging thread

Recommended Posts

WiWavelength    31,421

We are starting to encounter more and more distinct band 41 TD-LTE 2600 EARFCNs.  Unfortunately, these pop up sporadically in various market threads and do not always come to my attention.  Additionally, we are waiting on the first report of a band 25 LTE 1900 EARFCN outside of the PCS G block.
 
At present -- and periodically updated -- the EARFCNs that have been documented are as follows:
 
Band 25 LTE 1900:

  • EARFCNs 8665/26665 [nationwide; PCS G block]
  • EARFCNs 8315/26315 [Chicago MTA; former USCC PCS B block; second carrier]
  • EARFCNs 8158/26158 [shentel; Washington-Baltimore MTA; PCS A block; second carrier]
  • EARFCNs 8565/26565 [Columbus BTA; former Revol PCS C4 block; second carrier]
  • EARFCNs 8465/26465 [Cleveland-Akron BTA; former Revol PCS F block; second carrier]
  • EARFCNs 8415/26415 [Youngstown-Warren BTA; former Revol PCS E block; second carrier]
  • EARFCNs 8321/26321 [Phoenix MTA; PCS B block; second carrier]
  • EARFCNs 8308/26308 [Flint; Detroit MTA; PCS B block; second carrier]
  • EARFCNs 8159/26159 [Lee's Summit; Kansas City MTA; PCS A block; second carrier]

Band 26 LTE 800:

  • EARFCNs 8763/26763 [nationwide; SMR X block]

Band 41 TD-LTE 2600:

  • EARFCN 39826
  • EARFCN 39858
  • EARFCN 39926
  • EARFCN 39956
  • EARFCN 39991
  • EARFCN 40056
  • EARFCN 40124
  • EARFCN 40254 [multiple markets; second carrier]
  • EARFCN 40521
  • EARFCN 40719
  • EARFCN 40978 [multiple markets; first carrier]
  • EARFCN 41078
  • EARFCN 41176 [multiple markets; was Kansas City BTA; Kauffman Stadium -- World Series; second carrier]
  • EARFCN 41276
  • EARFCN 41374

Since there is strength in numbers, if any member encounters an undocumented EARFCN -- whether on an owned device or in someone else's engineering screenshot -- please report it in this thread.  Just please do not report EARFCNs 65535 or 58978.  Those are invalid values.
 
Finally, remember that the S4GRU DL Center contains a spreadsheet that is periodically updated with all known WiMAX and TD-LTE carriers.
 
http://s4gru.com/index.php?/files/file/29-clearwire-wimaxtd-lte-carrier-band-plan/
 
AJ

  • Like 21

Share this post


Link to post
Share on other sites
WiWavelength    31,421
S4GRU    54,543

Great idea for a thread, AJ.  Thanks for this.  I'm looking forward to seeing other PCS entries, and possibly some varieties on the SMR with different size carriers in different positions.   :tu:

 

Robert

  • Like 1

Share this post


Link to post
Share on other sites
S4GRU    54,543

I was excited because I thought I found a new one (39991).  And then I got here and found it already on this list.  DOH!

 

Robert

Share this post


Link to post
Share on other sites
jeremyvbk    620

Not sure if these can count. I have been having some thing weird happen as of late. My phone connects just on the DL on LTE. It shows LTE Signal sometimes, sometimes not, either way the engineering screens are the same both ways.

 

https://www.dropbox.com/s/fkqgr6j2w9ql0m0/Screenshot_2014-02-01-14-22-34.png

 

https://www.dropbox.com/s/8gjfe4dtgtqzifw/Screenshot_2014-02-06-00-43-09.png

 

 

The 8222 I know was just a scan, 8569 was on there for a bit.

Share this post


Link to post
Share on other sites
WiWavelength    31,421

The 8222 I know was just a scan, 8569 was on there for a bit.

 

Did these occur in Tyler?  Unfortunately, I do not think that either was an actual connection.  And even if EARFCN 8569 was, it was not in spectrum that is licensed to Sprint in the Tyler BTA.

 

AJ

Share this post


Link to post
Share on other sites
jeremyvbk    620

Did these occur in Tyler?  Unfortunately, I do not think that either was an actual connection.  And even if EARFCN 8569 was, it was not in spectrum that is licensed to Sprint in the Tyler BTA.

 

AJ

Yeah pretty sure it was in Tyler. I did the math just now and it is T-Mobile spectrum. Hmm not sure what happened. But it might be a value to look for in other markets

Share this post


Link to post
Share on other sites
Jeffrey_J    135

AJ, I do not know if this counts.

 

My stock Nexus 5 has been scanning all LTE Bands about every 3 minutes.

This is the video.

Band 17 - 5760, 5799
Band 4 - 2325
Band 26 - 8883, 8949, 8973, 8922, 8856
Band 41 - 41501, 41417, 39753, 39823, 39826
Band 25 - 8443, 8277, 8365, 8477, 8328
Band 1 - 422, 410, 447, 366, 357
Band 2 - 974, 835, 689, 1083, 865
Band 4 - 2350, 2331, 2322, 2174
Band 5 - 2580, 2564, 2511, 2577, 2515
Band 19 - 6101, 6049
 

  • Like 1

Share this post


Link to post
Share on other sites
jeremyvbk    620

AJ, I do not know if this counts.

 

My stock Nexus 5 has been scanning all LTE Bands about every 3 minutes.

This is the video.

Band 17 - 5760, 5799

Band 4 - 2325

Band 26 - 8883, 8949, 8973, 8922, 8856

Band 41 - 41501, 41417, 39753, 39823, 39826

Band 25 - 8443, 8277, 8365, 8477, 8328

Band 1 - 422, 410, 447, 366, 357

Band 2 - 974, 835, 689, 1083, 865

Band 4 - 2350, 2331, 2322, 2174

Band 5 - 2580, 2564, 2511, 2577, 2515

Band 19 - 6101, 6049

 

Where is the band 25 EARFCN of 8665? I haven't seen an EARFCN that sprint uses, and the nexus 5 scans for. ( except b41 39826)

Share this post


Link to post
Share on other sites
Jeffrey_J    135

Where is the band 25 EARFCN of 8665? I haven't seen an EARFCN that sprint uses, and the nexus 5 scans for. ( except b41 39826)

I noticed that.

Share this post


Link to post
Share on other sites
dkyeager    6,690

The EARFCN of Sprint Band 41 in Columbus is 40521, same as the Clear (Clearwire) Band 41  EARFCN, source: http://s4gru.com/index.php?/topic/4825-columbus-market-mapspreadsheet-premier-edition/page-19&do=findComment&comment=321397

Share this post


Link to post
Share on other sites
Vince    2,121

Second band 25 pcs carrier in Chicago market (former uscc spectrum)

uhehe4a4.jpg

 

Sent from my LG-LS980

  • Like 3

Share this post


Link to post
Share on other sites
kyle_4thousand    1,035

Another second carrier screenshot

as observed in the NW Chicago burbsu3aby7yg.jpge8u6ada2.jpg

 

Sent from my Nexus 5 using Tapatalk

  • Like 2

Share this post


Link to post
Share on other sites
Vince    2,121

Aj, I was traveling through the southern suburbs of Chicago, when I noticed I was connected to band 41 with this frequency. I checked post #1 to see if it was on your "do not post, these are null values" list, and it wasn't. It never changed, and stayed even while using data, so I don't think it was null.

yjugydap.jpgpuzade7a.jpg

 

Sent from my HTC One M8

Share this post


Link to post
Share on other sites
lilotimz    10,864

Aj, I was traveling through the southern suburbs of Chicago, when I noticed I was connected to band 41 with this frequency. I checked post #1 to see if it was on your "do not post, these are null values" list, and it wasn't. It never changed, and stayed even while using data, so I don't think it was null.

 

 

Sent from my HTC One M8

 

Still invalid. The valid EARFCN in the screenshots are 40056. Anything above 46589 is an invalid EARFCN. 

Share this post


Link to post
Share on other sites
Vince    2,121

Still invalid. The valid EARFCN in the screenshots are 40056. Anything above 46589 is an invalid EARFCN.

So it's an error on the phone's engineering screen?

 

Sent from my HTC One M8

Share this post


Link to post
Share on other sites
WiWavelength    31,421

So it's an error on the phone's engineering screen?

 

Hi Vince...

 

Yes, the uplink EARFCN for TDD appears to be an error.  Why it is even there, I cannot explain it.  So, I should probably edit my instructions to indicate that you should report only the downlink EARFCN.  If it is TDD, the downlink EARFCN is accurate.  If it is FDD, I can calculate the uplink EARFCN from the reported downlink EARFCN.

 

Also, I did not have a chance yet to thank you for supplying the official documentation of the secondary band 25 LTE 1900 carrier in Chicago.  But I added the new EARFCNs shortly after your post and PM.  The secondary band 25 LTE 1900 carrier is just as I expected at the high end of the former USCC license.  That is wise spectrum management.

 

AJ

Share this post


Link to post
Share on other sites
Vince    2,121

Well, darn. Thought I found something new. Oh well. Glad to contribute.

 

Sent from my HTC One M8

Share this post


Link to post
Share on other sites
mozamcrew    388

Hi Vince...

 

Yes, the uplink EARFCN for TDD appears to be an error.  Why it is even there, I cannot explain it.  So, I should probably edit my instructions to indicate that you should report only the downlink EARFCN.  If it is TDD, the downlink EARFCN is accurate.  If it is FDD, I can calculate the uplink EARFCN from the reported downlink EARFCN.

 

Also, I did not have a chance yet to thank you for supplying the official documentation of the secondary band 25 LTE 1900 carrier in Chicago.  But I added the new EARFCNs shortly after your post and PM.  The secondary band 25 LTE 1900 carrier is just as I expected at the high end of the former USCC license.  That is wise spectrum management.

 

AJ

Do you think Sprint might eventually sell its E block PCS license in Chicago?

Share this post


Link to post
Share on other sites
WiWavelength    31,421

Do you think Sprint might eventually sell its E block PCS license in Chicago?

 

It is a possibility.  To the PCS E block 10 MHz license, the adjacent license holders are VZW with the PCS B5 block 10 MHz disaggregation and AT&T with the PCS F block 10 MHz license.  VZW holds no other PCS spectrum in Chicago, while AT&T also has the PCS A block 30 MHz license.  So, VZW might be interested, while I think AT&T is already full up.

 

On the other hand, Sprint might want to send its PCS D block 10 MHz license to AT&T in exchange for the PCS F block.  That would give Sprint two separate 20 MHz contiguous swaths, while AT&T would end up with one 40 MHz contiguous segment.

 

The third option is that Sprint keeps it all.  And CDMA2000 operations are eventually shunted to just the PCS E block so that the adjacent combo of the PCS D block and PCS B3/B4 block 20 MHz disaggregation can run LTE at 15 MHz FDD.

 

The band plan graphic that I created for the Sprint-USCC transaction article can be a helpful reference:

 

2qi8ier.png

 

AJ

  • Like 2

Share this post


Link to post
Share on other sites
mozamcrew    388

It is a possibility.  To the PCS E block 10 MHz license, the adjacent license holders are VZW with the PCS B5 block 10 MHz disaggregation and AT&T with the PCS F block 10 MHz license.  VZW holds no other PCS spectrum in Chicago, while AT&T also has the PCS A block 30 MHz license.  So, VZW might be interested, while I think AT&T is already full up.

 

On the other hand, Sprint might want to send its PCS D block 10 MHz license to AT&T in exchange for the PCS F block.  That would give Sprint two separate 20 MHz contiguous swaths, while AT&T would end up with one 40 MHz contiguous segment.

 

The third option is that Sprint keeps it all.  And CDMA2000 operations are eventually shunted to just the PCS E block so that the adjacent combo of the PCS D block and PCS B3/B4 block 20 MHz disaggregation can run LTE at 15 MHz FDD.

 

AJ

 

I am assuming that eventually all of the USCC Spectrum would be used for LTE incrementally, and that as CDMA traffic declined they would simply sell off block E. Continuity is good though. Frankly, if Sprint needed money for low band spectrum, I could see them pairing down to about 30Mhz of PCS  across the country (10Mhz for CDMA and a pair of 5x5 LTE channels), once they get a solid band 41 LTE network built up. With the new gear, the band 41 coverage is almost as good as the Band 25 coverage. Band 25 will mostly be for non-spark devices (old Sprint devices or roaming traffic).

Share this post


Link to post
Share on other sites
Vince    2,121

AJ, I know this is in your list, but I was wondering why there would be two different b41 channels in a market. I found this 40 minutes outside of Chicago last night. It strays from our usual 40056veruve7e.jpg

Share this post


Link to post
Share on other sites
WiWavelength    31,421

AJ, I know this is in your list, but I was wondering why there would be two different b41 channels in a market. I found this 40 minutes outside of Chicago last night. It strays from our usual 40056

 

One carrier is deployed in EBS spectrum, the other in BRS spectrum.  And "40 minutes outside of Chicago" is not necessarily still in the same licensed market -- especially for EBS. 

 

AJ

Share this post


Link to post
Share on other sites
Vince    2,121

One carrier is deployed in EBS spectrum, the other in BRS spectrum. And "40 minutes outside of Chicago" is not necessarily still in the same licensed market -- especially for EBS.

 

AJ

30-40 minutes. It was in Joliet. That's still our market.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×