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niviuk@free.fr

Date Name Comment

08 01 2016
11:00

Jacob Wu

Hi there, I have a customer says their L1800 frequency allocation as follows: DL LTE F1 (L1800): Earfcn 1300, Fc DL 1815.0 MHz, 20Mhz BW DL LTE F2 (L1800): Earfcn 1471, Fc DL 1832.1 MHz, 15Mhz BW That means for F1, the frequency range is from 1805~1825MHz. For F2, it is from 1824.6~1839.6. My question is, is it possible to use this kind of configuration with 0.4 overlapped frequency? (F1 ends at 1825, F2 starts at 1824.6) Thanks.

07 01 2016
16:19

DW

Might be nice to add upcoming 5G bands from World Radiocommunication Conference on 12/3/2015

03 12 2015
23:10

Niviuk

Hi Mike, the PRS upper frame grid is using a static value of PRS Index equal to 0, whereas the lower whole SFN view takes into account the PRS configuration Index input. This explains the difference. I am searching for a solution to fix that

03 12 2015
22:50

Niviuk

Hi Jacob, the 5 MHz bandwidth includes a guard band on both sides. We can use an effective bandwidth value of 4.68 MHz. For Band 1, the Freq offset is equal to 0, then Freq = Arfcn / 5. The lowest DL Arfcn is 10562, or a central frequency of 2112.4 MHz with 2.34MHz bandwidth on each side = [ 2110.06 .. 2114.74 ]. Same formula for the highest Arfcn 10838

03 12 2015
17:07

Mike Morgan

Hi there. Great site. Just had a comment on the OTDOA. I was putting in some different settings and noticed that the grid view (PRB vs subFrames) showed PRS starting on subFrame 0 and then when I looked down the page at the view over whole SFN period of 1024 frames showed the PRS pattern starting in subFrame 1. just wanted to bring that to your attention.

02 12 2015
07:51

Jacob

Hi there, have a question here. For UMTS band1, the first channel center frequency is 2112.4MHz which means the operating bandwidth is from 2110~2115MHz (backward 2.4MHz, forward 2.6MHz); the last channel center frequency is 2167.6MHz, and the operating bandwidth is from 2165~2170 (backward 2.6MHz, forward 2.4MHz). With a known center frequency, How could I determine the operating bandwidth? Backward 2.4MHz or 2.6MHz?

27 11 2015
22:23

Niviuk

Sur la page Frequency search, on peut chercher pour une frequence toutes les bandes en LTE, UMTS, ... Et il y aussi une possibilité d'exporter les tables utilisées pour le calcul. Si cela ne correspond pas ce que vous aimeriez trouver, vous pouvez m'envoyer par mail une description plus detaillee. Je regarderais. Cdlt

26 11 2015
15:48

Martin

Est ce que vous avez une api ? Si non, est ce que vous pourriez offrir ce genre de service ? L'idée est d'avoir un moyen rapide d'avoir les informations sur une bande de fréquence (GSM, UMTS...) a travers un programme. Merci d'avance Martin

10 11 2015
19:18

Sam

Hello, LTE band 31 is more EALA than CALA although Brasil has shown interest in this frequency band. It was originally used in the Nordics for NMT450 where it was later replaced by CDMA450 which is now migrated to LTE450. NMT450 was also used in Poland, Russia, Ukraine, Saudi Arabia etc.

05 11 2015
23:30

Niviuk

Added B65 and B66 from draft 3GPP CRs

02 11 2015
23:11

Niviuk

Updated. Added also AWS-4 spectrum into LTE / FCC Spectrum / AWS view

02 11 2015
05:15

UE Categories

There is mis-typed information within the Downlink Categories table, for downlink category 16 under "Maximum number of bits of a DL-SCH transport block received within a TTI" you have 149776 (4 layers, 256QAM) It should read, 149776 (4 layers, 64QAM) 195816 (4 layers, 256QAM)

21 10 2015
22:07

Niviuk

Hi, I need the arfcn values for this new band to add it in the page. It is not yet available in the 3GPP, may be in December ?

20 10 2015
22:58

boettger1

Band 66 (AWS-3) is missing. See c

11 10 2015
19:56

hnhnhn

Great

08 10 2015
22:10

Niviuk

Thanks. Added a google custom search on the home page.

07 10 2015
20:17

CAFAREL

Great work. Thanks

09 09 2015
09:02

Amir

Niviuk - very professional and nit site! how can i search within the web? i find it hard to look for thinks in it... tnx, amir

06 09 2015
23:39

Niviuk

Hi Mr Wad, nice to hear from you. Your LTE web pages are useful, with a good graphical design. I did not know how to contact you before doing a copy, and as you may have seen, I added on the web pages it was a copy from your previous web site. I can add your name as the author if you wish, and of course, I will remove the copy if you ask me to do so. Cheers. LG

06 09 2015
23:21

Niviuk

Hi Walter, Ok, I will remove the GSM band numbers

05 09 2015
19:58

P.Wad

Hi. I noticed that this site has a copy of my original LTE resource grid and other tools. That's fine, because I had some bad luck with my old web hosts, and haven't yet found a solution that works for me. I do want to let you know that my web pages are still available at an awfully long Google Drive URL, which can be accessed via: http://tinyurl.com/pewscorner (then select "LTE stuff" from the menu). The full URL is: http://pewscorner.github.io/pages/

04 09 2015
09:20

Walter

The band numbers in the GSM table are wrong. Number given in the table refer to the chapter number in 45.005. Please align with UMTS and LTS bands or remove bands for GSM, to avoid confusions.

01 09 2015
23:03

ANON

Hi, Can you add some information related to DRX?

30 08 2015
15:40

Niviuk

Hi, from Linkedin, he left Renesas to a medical equipment company, and changed of business. His nice web site has been removed.

27 08 2015
15:04

Reza

No track of Paul WAD ?

28 07 2015
15:26

Sébastien

Dears, Maybe to be more precise about request on resource grid, it will be more than useful to take into consideration the new transmission mode TM9/10 which induces additional overhead on FDD LTE resource grid (TDD maybe ?). Indeed, thanks to this new TM, it is possible to perform SU-MIMO 4xn & SU-MIMO 8xn using new reference signals (CSI-RS & DMRS). Hopefully, you will have enough time to add this request into the pipe :) Cheers, the site is great !

14 07 2015
23:18

Niviuk

I have added TDD Rel 11 special subframe 9, I did not find any other additional change on the resource grid page. Regards

07 07 2015
10:14

Jam

Thanks for useful knowledge...Can I get the LTE resource grid of Rel 10? Currently, there is that of Rel 8...

19 06 2015
23:22

Niviuk

Hi Mr student, it allows to break the link between UL and DL for the future categories. A device will declare a legacy category common for UL and DL, and may add a specific DL or UL cat. The additional UL/DL cat allows to define new 3GPP Release 12 categories, for instance category 0 for low complexity devices; it may be useful also to indicate new capabilities to the network like the support of UL 64QAM, or just indicate enhanced throughput either in DL or UL.The device should be compliant with the combinations set rules at the bottom of the page. Cheers

19 06 2015
22:51

Niviuk

Hi RFeng, interesting idea, as it may be useful for LTE Unlicensed. I have added a first page, and will expand it while reading some docs on WiFi

18 06 2015
08:22

student

Hello niviuk! I wonder what is meaf of "Ue-categoryUL and DL" . The combinations set Table makes me crazy. could tell me more detail about categoryUL,DL!

06 06 2015
00:47

RFeng

Could you also please add WIFI channels for different BW, MCS#? Great site.

20 03 2015
09:19

Niviuk

I changed to "AWS-1 +" so that AWS-3 can be used for the new band to come in the 3GPP. Please tell me if there is any other usual naming for B10

18 03 2015
12:55

NT

LTE Band 10 is mistakenly listed as AWS 1+3, but does not cover the entire gamut up to xx80 MHz. A new superset LTE band is required.

01 03 2015
19:48

Niviuk

Hi Gautam, the umts page is built from several include files. The freq/arfcn info is using a php array that you can export to Excel from this link http://niviuk.free.fr/wls_search.php. The formula to compute arfcn or frequency is displayed in an example at the bottom of the umts_band page. I think that with the export table and the formula, you have all the data to be able to generate the umts tables in any language

24 02 2015
12:16

gautam

umts_band.php how include this php in website...........ue site is very useful

18 02 2015
23:04

Niviuk

Great. I found an archive here : http://nashville.dyndns.org:800/WirelessDownloads/Paul_Wad_Calculators/ , but two images active_RS and inactive_RS were missing. I was just trying to recreate the images with a script in PHP and GIMP. Thanks for the tip

18 02 2015
18:40

Doug

Thanks for putting up a copy of the LTE resource grid at: http://niviuk.free.fr/lte_resource_grid.html There is one image missing, you can grab it at this link: http://web.archive.org/web/20140806212714/http://www.pewscorner.host-ed.me/LTE/inactive_RS.png

11 02 2015
23:28

Niviuk

Hi Disinto, I have tried to add some filtering on the CA spectrum page lte_ca_spectrum.php. I don't find the result convincing, but I added it anyway. You can drop me a mail if it is not what you had in mind. Cheers, LG

09 02 2015
09:52

Disinto

I usually cross check the standardized/future CA pairs here: http://www.3gpp.org/DynaReport/SpecVsWi--36101.htm

09 02 2015
09:47

Disinto

I'm in the telecom business and use your site nearly on a daily basis, especially for CA pairs. Two comments though: - Can you specify which revision of TS36.101 you consider in your tables? (e.g. 3GPP 36.101 Rel12 June'14 - Would it be possible to have a spectrum graphical view segregated by low band, medium band and high bands? It'd help spotting overlaps more easily (i.e. B38/B41 and B28/B20) Merci :)

08 12 2014
23:07

Niviuk

Thanks. There is one IOS appli, and also several Android ARFCN calculators, at least new services would need to be added to bring somethnig new to the existing applis. I don't know the mobile software, but if I can help, it is ok

05 12 2014
18:39

Hamed

Have you thought about making a mobile app for your website? I'm in the telecom business and your site is by far one of the best ones out there for center frequency channel calculations and other similar references. Fee free to contact me and maybe we can put something together and share it with the community.

04 12 2014
13:31

Nazar

Nice effort, handy for all RF people

30 11 2014
00:09

Niviuk

Added export of LTE and UMTS bands to CSV format on the page Frequency search

27 11 2014
22:52

Niviuk

Hi, One question to Mr Paul WAD, author of the unique LTE Grid site http://www.pewscorner.host-ed.me/LTE/lte_resource_grid.html Your site is suspended I am wondeing if you could send me the source of your LTE web page so that I add it on this site, with your name as creator, to keep helping LTE engineers I add this post as I don't have your email address Thanks

29 10 2014
00:15

Niviuk

Yes, but Revision E, C.S0057-E_v1.0_Bandclass_Specification from October 2010

28 10 2014
20:41

Andre

Hi, is this the reference you use for your CDMA to channel # conversion: http://www.3gpp2.org/Public_html/specs/C.S0057-A_v1.0_060112.pdf

19 10 2014
21:54

Niviuk

Hi, I have switched blocks E and F to align on band 39 and 40. Cheers

17 10 2014
09:33

Gast

UMTS band 39 and 40 looks wrong. Should be same as LTE frequencies

08 10 2014
22:53

Niviuk

OK, it is not always obvious to fill the information about the geographical area where the bands are used. Cheers

08 10 2014
12:40

Adrien

One remark : China is no longer on B38 as MIIT finally decided that B41 would be the main profile for the 2.5 GHz band (just like Japan and US). So B38 is no longer for "China" as mentioned, and I would say that B38 is "EMEA" just like B7 (since they were designed together in the CEPT band plan)

25 09 2014
22:31

Niviuk

Good point. I have fixed it, and added an example Also updated LTE RRC, S1, X2 asn1 3GPP R12 sept 2014

22 09 2014
14:38

hemant

your GSM E-GSM frequency table is wrong for 975 to 1024. check 3GPP

31 08 2014
23:27

Niviuk

Hi, I have enriched the ARFCN range tables with the offset values, and added at the bottom the formulas, with an example.

28 08 2014
21:31

Andre

Could you post the channel formulas on your web site (does not have to be n Excel format).

30 07 2014
21:52

Niviuk

Updated from 3GPP June 2014, and also added decimals for middle frequency

29 07 2014
15:33

TorK

For LTE band 34 it shows the middle frequency as 2017 MHz, but it should be 2017.5 MHz. The half MHz is missing from some other middle frequencies too.

10 07 2014
23:47

Niviuk

Added B32 in UMTS and also LTE RRC Rel 12

10 07 2014
01:15

Holic

B32 (EU L-band) downlink only band is missing: DL - 1452 - 1496MHz

02 05 2014
13:36

hafsa

Really good page

25 02 2014
22:26

Niviuk

Hi, the site is in php, I don't know how to export in Excel ? Anyhow the formulas to calculate arfcn is easy to find. For LTE, ftp://www.3gpp.org/Specs/latest/Rel-11/36_series/ 36.101 §5.7.3, the downlink frequency FDL = FDL_low + 0.1(NDL – NOffs-DL). Cheers

23 02 2014
00:33

Nick

Thank you for a great website. I was wondering if you could share these formulas in an excel spreadsheet. I would be very grateful. Thank you again!

09 01 2014
05:33

Absolute_0

Just wanted to say thank you for this site it has been invaluable to me and my walk test teams!

08 12 2013
23:27

Niviuk

OK, I have fixed it

08 12 2013
12:34

Praveen

Incorrect formula for Band 30,31 Freq(2350) Search returns wrong Earfcn UL (27770)

29 10 2013
22:50

Niviuk

Interesting. Added dual band HSDPA configurations

25 10 2013
23:03

neel

can you add dual carrier channels for umts?

24 09 2013
23:20

Niviuk

Good point, I will change it

21 09 2013
05:19

matt

In the "Store" area of the site, you have mobile country codes listed and a "City" field. Most cities in that field are the capitols of their corresponding country. But I noticed you have "Belfast" listed for the UK. I believe it should be London. 234 United Kingdom of Great Britain and Northern Ireland Belfast 235 United Kingdom of Great Britain and Northern Ireland Belfast

16 07 2013
11:53

Niviuk

Updated ASN1 to 3GPP R11 June 2013

15 04 2013
23:41

niviuk

A lot of job ! It would need to reorder the asn1 grammar.

12 04 2013
12:51

Stefan Blomeier

hello, it would be great in UMTS/WCDMA(FDD only) to see for some RRC/RB Configuratin and Reconfiguration messages the IE's in common and the different IE's. My favorite would be to compare ActiveSetUpdate, Cell Update Confirm, Radio Bearer Setup, Radio Bearer Setup, Radio Bearer Reconfiguration, Radio Bearer Release, Transport Channel Reconfiguration and Physical Channel Reconfiguration with each other. Then list all IE's common among the afore mentioned 8 RRC messages, then the IE's common between 7 RRC messages and the one RRC having different IE's, then IE's being the same between 6 RRC messages while listing the remaining IE's each of the 2 RRC Messages which are different, then follow up the IE's the 5 RRC messages have in common and list for the 3 RRC messages the IE's which differ and so on. The Idea is to show how redundant the RRC messages are resp. what IE's can be configured and reconfigured by any of the 8 RRC messages and finally also see what IE's are peculiar to certain RRC message(s). That is some sort of analysis about the sensefulness of all these RRC messages mentioned before. Cheers, Stefan

05 04 2013
19:39

neel

thanks for adding the middle channel

05 04 2013
13:23

JuSim, PM RF Nokia

Thanks for your pages, helps a lot quick frequency checks.

02 04 2013
23:50

niviuk

Not too much code to add mid frequency for all the technos. Regards

28 03 2013
11:52

Tom

This is a very helpful tool, but I have the following suggestion to make it better. Please could you add the mid channel number and frequency to all the bands? Very useful for RF testing to have top, middle and bottom channels. Thanks Tom

10 03 2013
17:48

niviuk

OK, I have changed the name of the bands

08 03 2013
00:14

Moto man

Just FYI, the original iDEN 800 MHz SMR band is 806-825 MHz for TX, with RX 45 MHz above. So, if anything, it would be more appropriate to label LTE Band 27 as iDEN rather than Band 26...or delete all references to iDEN.

05 01 2013
22:05

niviuk

Answer to Stefan. The solution I found was to add a button to hide/unhide TDD and MBMS information in the ASN1 grammar. Cheers

30 09 2012
23:20

niviuk

Answer to Neel. Bug fixed : In UMTS, channel search is now allowed in both uplink and downlink

29 09 2012
08:29

Stefan Blomeier

hello, just realized that MBMS is also a feature that up to know almost no Operator wants - except maybe in Japan or China. MBMS failed to get widely accepted. So it is rather nice to keep it separate in the ASN.1 code of WCDMA. As I already suggested to keep the entire TDD-ASN.1 separated from the WCDMA-FDD I would like to encourage also to keep the MBMS ASN.1 related messages and IE's separated. Moreover, TD-SCDMA is the only TDD version having survived, so I rather suggest to have a "chinese" LCR-TDD ASN.1 code. Note that also in Low-Chip-Rate TDD some channels like PDSCH and PUSCH are never used, similar in FDD. Maybe a clean-up of unnecessary ASN.1 IE's is advantageous to provide only the messages and IE's that are really used. That make searches in the WCDMA ASN. 1 simplier. However, there is a thin line between the fully beaty of exhausting information and keeping all stuff in WCDMA-ASN.1 and the practical usefulness. It is my personal opinion of course. Stefan.

25 09 2012
20:56

neel

your band3 is in correct please check channel=1288

24 09 2012
22:19

author

Interesting idea. I have written a script that generates the html code from the 3GPP grammar, and it would require to filter the TDD IEs. No obvious filtering algo yet, I will look at it.

23 09 2012
08:59

Stefan Blomeier

hello, it would be nice to split up the ASN.1 of UMTS RRC in two sections: A) UMTS FDD B) UMTS LCR (TD-SCDMA). No country uses both versions of UMTS, except maybe China. So it is rather simplier just see UMTS FDD messages and IE's without that TDD stuff. You Web-page is cool - useful. cheers, mate.

03 09 2012
22:14

author

Effectivement, mais on trouve des infos sur plusieurs sites web dont les sites FCC US

21 08 2012
16:13

laurent

Bonjour, où avez-vous trouvé les noms des bandes ? Dans les specs 3GPP, il n'y a que les n°. Sinon vraiment merci car c'est plus compréhensible pour référencer une bande que les n°.

05 08 2012
23:20

author

Merci, et maintenant une petite pause estivale

04 08 2012
05:14

Rike

Je ne sais pas si vous êtes au courant, mais votre site est devenu le site de facto pour les ingenieurs dans le "Test and Measurement" pour les calculs de canaux pour LTE. Chapeau et bonne continuation!

27 07 2012
23:25

author

Hi, 36.101 for LTE and 25.101 for WCDMA. Added US WCS band plan

25 07 2012
11:56

Sam

Hey! Cool info, i was wondering where can I double check info for the channel number in the lower 700 MHz band, do you have a 3GPP ref ?

23 03 2012
00:07

author

I will check, UMTS bandwidth is 5MHz, so probably linked to the carrier frequency close to the 2.5MHz band edge

20 03 2012
08:24

smj

Unless you are using specific country frequency allocation, you made a mistake in the UMTS frequency range Band V. It should start from 824MHz

01 01 2012
17:02

author

Band selection fixed

27 12 2011
10:19

Leon

LTE Band 7 appears twice in the selection. Is that a mistake?

25 12 2011
22:37

author

Tried, but the page becomes quite heavy and uneasy to read. Did not keep it

20 12 2011
20:36

neelesh raj

when we pick lte freq band it shows us the low and high channel, would it possile to also show the middle channel

17 10 2011
23:36

author

Not found in 3GPP but band 6 addded

14 10 2011
15:41

Ashish

Do you have updates on Japan LTE allocation around 895-905MHz??

16 09 2011
14:01

author

Code fixed
101 .. 200