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niviuk@free.fr

Date Name Comment

19 10 2018
22:41

Niviuk

Hi, I have added a bandwidth field after the CA combination in the export file

09 10 2018
22:52

AlexH

my mistake: The button is not on the export page but on the human readable one. I think I have described poorly what I was hoping to find. Example: Instead of a link to 1A-1A BCS 0, I was hoping the actual bandwidths for the two carriers in the corresponding .csv file, so I do not have to resolve the links myself

09 10 2018
22:49

AlexH

thank you for adding ULCA information to the csv file. You also wrote that there is now a "CA links" button for csv export. Unfortunately I am unable to find this button. Am I blind? The reason why I prefer the flat list is because it is easier to parse than resolving the links manually (but it is not a deal breaker)

09 10 2018
15:04

Dwight

The bandwidth associated with band 46 is incorrect. 775 MHz is not right. It should be 10, 20 MHz.

26 09 2018
23:16

Niviuk

Hi Cham, are you trying with Exynos logs ? it is not supported. The script needs to be updated; it only works with QCT logs for now

25 09 2018
21:12

DJ

What a great and helpful site. 3GPP could learn some lessons here ;)

25 09 2018
10:19

Cham

Hi Niviuk, i am still unable to use the UE capability calculator, i paste the message just like i shared with u on email before and i don't get any results. please can u help?

24 09 2018
22:16

Niviuk

Hi AlexH, UL CA is now in the export, and I added a button to enable/disable CA links. I am wondering why you prefer a flat version of the table ?

22 09 2018
08:03

AlexH

the uplink configuration is not part of the .csv file either. would you please consider adding it too? furthermore, have you considered making a FLAT version of the tables (without references to other CA bandwidth combination sets)?

20 09 2018
10:39

AlexH

Thank you for the quick fix! Would you please also consider adding the 3GPP release to the .csvs? Thank you very much!

19 09 2018
22:29

Niviuk

Hi AlexH, there is a button LTE-U on the page LTE CA which is not selected by default. If selected, the CA combinations displayed and the export will be identical. There is no filtering in the export. I have added another column "BW carrier 5" in the .csv export for intra band

19 09 2018
21:20

AlexH

the export of LTE_carrier_aggregation.csv does not have enough columns to be able to cover the information for „Intra Band CA contiguous“. Example: 41F would require a column called „BW carrier 5 (MHz)“ which is not available in the .csv

18 09 2018
17:01

AlexH

the export of LTE_carrier_aggregation.csv does include combinations not listed on the website (e.g. 255C). Why?

12 09 2018
14:10

Stone

Hi, please add calculator for NBIoT Inband and Guardband frequencies based on host cell bandwidth & uplink/downlink PRB index.

09 09 2018
22:45

Niviuk

Hi mm_tfx, it is a python script that I wrote, around 250 lines of code

09 09 2018
22:42

Niviuk

Hi Cham, I just did a test, it seems ok, did you process a recent QC trace ? format may have changed

09 09 2018
21:27

mm_tfx

I meant S1-AP, X2-AP but now when you mentioned them I found them on your site. I don't know how could I miss that. Do you use some available Python library or you made this script yourself? It is very usefull and could be used for more protocols especially new ones in 5G.

08 09 2018
10:57

Cham

Hi Niviuk, the ue capability decoder is giving zero values whenever i process a QC trace file. is it down or am i doing something wrong?

07 09 2018
22:21

Niviuk

Hi, RRC asn1 is extracted with a word macro, and a python script generates the html. There is RRC and F1 for NR, also on LTE radio, RRC, S1, X2, … Do you have in mind other protocols ?

05 09 2018
21:24

mm_tfx

The page with RRC ASN.1 is really usefull. Do you have plans for other protocols/interfaces? How did you make this page? Did you create some script to parse ASN.1 code?

04 09 2018
23:02

Niviuk

Hi Luis, I added a legend at the bottom of the NR resource tool

01 09 2018
14:04

Suresh Kumar bansal

Can some one help me with SMR band blocks and corresponding channel range for LTE.

01 09 2018
11:10

sylvain

Bon site, bien fait, pratique...

28 08 2018
14:55

Luis Hernandez

Hello! First, thanks for your LTE grid which I used so much!! In your NR resource tool, also great thanks for it, I am missing the legend for the color of the different channels. Also, I can imagine the layout gets messy with mixed numerologies and different CP length, but it would be nice to see how messy it can get! Thanks for your free contributions, you are truly great, and beware of Apple bots in your feedback forum :)

11 07 2018
01:34

ALBERTO

¡Que tal niviuk ! Por favor alguna pagina en internet que me recomiendes para actualizarme con conceptos y términos de telecomunicaciones, gracias.

09 07 2018
15:50

Ameen Swati

can you please check and feedback for LTE Devices and band support

05 07 2018
23:31

Niviuk

Hi, 5G bands are available under the NR (New Radio) menu, Regards

04 07 2018
15:53

MR

Dear Niviuk, do you plane to add portable mobile earth station bands ? BR, MR

04 07 2018
15:33

MR

Dear Niviuk, when do you expect to add the 5G bands ?

28 06 2018
14:16

Cham

Done, sent you via email

27 06 2018
21:46

Niviuk

Hi, please send me one or two ueCapabilityInformation messages in text format to my mail on top of this page, or on a shared server. I will check

26 06 2018
14:29

Cham

Hi Niviuk, i have so many traces from multiple chipsets, please let me know what and how can i share to help, as for my query it is for Exynos chipset

11 06 2018
23:43

Lopa

There should be an option of editing the NR abbreviation list. There are quite a few duplicate entries.

10 06 2018
22:13

Niviuk

Hi, I just tested, it seems ok, but not with exynos logs, as I don't have traces from this chipset

07 06 2018
13:31

Cham

Hi Niviuk, is UE capabilities pretty viewer working? will it support uecapabilities from exynos chipset?

04 05 2018
21:50

Niviuk

Hi Sam, this information is available on the page LTE / Bandwidth, Regards

03 05 2018
16:54

Sam

Hi Niviuk, Would you be able to add a column with the 3GPP release to the LTE Bands table similar to the LTE CA table?

24 04 2018
12:27

Priyank Panchal

Hi Team, Not able to understand what is "1. what is resource allocation slot 0 and 1"

13 04 2018
22:19

Niviuk

Hi gp, you are right, fixed.

12 04 2018
09:18

gp

In your calculation for 5G NR max data rate - UE radio access capability 38.306 there seems to be an error. If you take a single carrier with 2x2MIMO and 64QAM in FR1 with 30kHz SCS your calculation shows 62.6Mbps. It should actually be 876.4Mbps, shouldn't it? The numbers entered into the formula at the lowest line on that page are accurate, just the result is wrong. I believe you are missing the "14" from the Ts^mu part since your result is short by factor 14.

22 03 2018
05:53

Caldwell

Can anyone tell me why my iPhone 8 Plus on AT&T continually jumps from good 4g signal to searching to poor Lte signal in my home location? We recently bought a surecall signal booster and still no better service...when 4g shows up it runs fast but usually lasts 30-60 minutes then it searches and finds a Lte signal it’s really fast but lasts half as long as 4g signal and even with Lte off it still becomes a signal jumping issue..we have 6 iPhones in the house and hey all do this constantly....the signal booster does work it took what was normally 2 bars to full bars now

19 03 2018
23:21

Niviuk

Ren, NR = New Radio. 3GPP abbreviations are in 21.905, and I added some on the page NR / Abbreviations

19 03 2018
23:17

Niviuk

Eran, I retrieved the LTE resource grid from a web site that has disappeared, as I indicate on top of the page; I am not the author; It is not easy to modify the javascript (Ctrl-U)

19 03 2018
15:32

Ren

Hi dear, please can you remind me what means NR in 5G? thanks in advance

18 03 2018
23:16

Niviuk

Helidri, the script replaces band 64 by the real band indicated in the extensions of the message, isn't it the case ?

18 03 2018
23:13

Niviuk

Ambjörn, I have added a new table LTE bands for UE category ...

15 03 2018
16:36

helidri

I was testing the UE capabilities pretty viewer (http://niviuk.free.fr/ue_capa.php) and it turns out that it has a fault with band 64, when you put a UE EUTRA capability message with band 64, in the result shows the band 66.

13 03 2018
13:59

Ambjörn

Hi! In the "E-UTRA channel bandwidths per operating band (36.101)" table, can it be added CAT-M and NB IoT applicability?

12 03 2018
21:33

Eran Goldstein

PHICH number of groups for the scenario: { DuplexMode: 'TDD' TDDConfig: 0 NSubframe: 0 CyclicPrefix: 'Extended' } Has half of the expected possible PHICH group indexes (compared to Matlab toolbox and spec equations).

26 02 2018
08:05

Hamza Bashir

thanks Andrew, I have found your previous comment for the details.

26 02 2018
05:36

Hamza Bashir

thanks Andrew , It would be helpful if you provide reference for your answer.

21 02 2018
06:52

Andrew Kolomatski

To Hamza Bashir (sorry, niviuk, for answering instead of you). This resource grid is absolutely correct, no mistake. Please scroll down a little bit to my question at on 11/12/2017. The 36.211 specification really requires so.

20 02 2018
13:12

Hamza Bashir

Hi niviuk, Lte resource grid has been very helpful throughout my lte phy development. One thing I have noticed that when number of tx ports is set to one even then PDCCH reserves unused REs(probably for reference signals of second tx port ) which might never be the case.

17 02 2018
11:43

Brahim

Merci infiniment !

05 02 2018
23:27

Niviuk

Hi, bands are now updated with 3GPP Rel 15 Dec 2017

30 01 2018
22:05

Ryker

450MHz Band 72 has been added to ProSe bands in latest Release 15 36.101.

30 01 2018
22:04

Ryker

Hi there, LTE 450MHz band 73 has been standardised in Release 15 for APAC in the meantime. See TR 36.759.

29 01 2018
22:04

Niviuk

Hi Benji, download csv issue from export band is fixed

26 01 2018
11:56

Throutput Vs SINR

Hi, First, thank you for the great job. Do you have informations about Throutput Vs SINR in LTE-A ? thanks

26 01 2018
03:19

Benji

Hey, I have problems when I try to download csv files from BANDs page. Best regards

05 01 2018
23:36

Niviuk

Hi Vince, when indicating a bandwidth check value, I don't know yet the band, and therefore the min and max bandwidth of that band. The script detects band 5 for arfcn 2525, and limits internally the bandwidth check to the min(requested,supported), in that case 10MHz, and the test is ok.With arfcn 2450, and bandwidth check 20MHz, the test is ok as well for 10MHz; with arfcn 2449, the test fails. I have anyhow added an indication when the script internally limits the bandwidth

04 01 2018
12:43

Vince

Hi, I am not sure how the bandwidth check works in LTE EARFCN calculator. It looks like it does not check the 36.101 Table 5.6.1-1: E-UTRA channel bandwidth . For EARFCN 2525 (band 5) it does not reject a 20MHz bandwidth. BR, Vince

12 12 2017
23:00

Niviuk

Added B42 for NBN Co. And a new page with 5G Dual Connectivity

11 12 2017
07:21

Andrew Kolomatski

NBN Co (Australia) rolls out Band42 TD-3500 as well, not only Band40 TD-2300. Add it please

11 12 2017
05:37

Andrew Kolomatski

Sorry, probably I found the answer. The clause "6.2.4 Resource-element groups" of the 36.211 really states "In case a single cell-specific reference signal is configured, cell-specific reference signals shall be assumed to be present on antenna ports 0 and 1 for the purpose of mapping a symbol-quadruplet to a resource-element group, otherwise the number of cell-specific reference signals shall be assumed equal to the actual number of antenna ports used for cell-specific reference signals. The UE shall not make any assumptions about resource elements assumed to be reserved for reference signals but not used for transmission of a reference signal". Even though it is still not quite clear why the standard requires so, but at least it is the fact that it does. Thank you anyway.

11 12 2017
05:09

Andrew Kolomatski

Hi Niviuk! Thanks a lot for everything in this resource and especially for your iconic radio resource grid generator. However may I ask you for one clarification please on the CRS mapping to resource elements. When I select a single antenna case (Tx antenna port/number of ports: 0/0), I can see that in PBCH (light blue) region the resource elements reserved for ALL FOUR reference signals are excluded. This is absolutely in line with 36.211 "The mapping operation shall assume cell specific reference signals for antenna ports 0-3 being present irrespective of the actual configuration. The UE shall assume that the resource elements assumed to be reserved for reference signals in the mapping operation above but not used for transmission of reference signal are not available for PDSCH transmission. The UE shall not make any other assumptions about these resource elements." But at the same time I can see that under a single antenna case in your PDCCH region the resource elements in symbol 0 of every slot 0 reserved for reference signals of TWO antennas are excluded. Can you please clarify why despite only one antenna port there are two RE's reserved for CRS in symbol 0 of every slot 0 instead of one?

28 11 2017
23:04

Rox

Niviuk, thanks for fixing the frequency calculator for 5GTF.

23 11 2017
11:38

Alfonso

Thanks Niviuk!

22 11 2017
21:49

Niviuk

5G TF calculator issue is fixed. 5G TF UL/DL ratio is not 3GPP, it is only a predefined static choice to display alternate UL and DL subframes. I can try to propose a digital value for UL and DL to avoid predefined choices

21 11 2017
15:16

Alfonso

Great work Niviuk! The web is very useful. One question: in http://niviuk.free.fr/fiveg_sfn.php in the 5G TF Frame parameters there's one UL/DL data cycle. Where in the specs can I find this parameter?

20 11 2017
22:17

Rox

5G channel to frequency calculator is not working. Can you please help to fix it?

19 11 2017
22:48

Niviuk

Removed B42, and added first 5G NR frequencies found in 3GPP TDocs

16 11 2017
14:17

Cham

Hi Niviuk, correction Samsung S8 SM-G950 doesn't support band 42.

06 11 2017
22:39

Niviuk

Hi, I have sometimes some errors as well, the web pages are hosted on a mutualised server, then may be when there is some higher network traffic, or server issues ? an area where I have no control. Regards

02 11 2017
14:02

Eric

This is a very useful tool, thank you, Niviuk, for making it! Not sure if it only happens to me or my friend, seems recently the webpage(s)/tables doesn't show up correctly. We tried Chrome/Firefox or even MS IE, but same issue. Any ideas?

22 10 2017
20:57

Niviuk

Hi, for all techno, there is now an option to search for a frequency range. The filter/sort option is now saved after selection. LTE geographical area option is selected by default. I disabled the UMTS equivalent band by default, but I can enable it back easily. Cheers

11 10 2017
21:45

paulhw

Thanks for such a useful resource. I use the LTE bands page once or twice a week! A few suggestions: 1) I find that every time I go to the LTE bands page, I change the sort order (it's not actually a 'Filter') to "DL Increasing" and turn on the Geography checkbox. Any chance those can be made the default?, 2) After changing and pressing Display, the Filter popup and checkboxes change back to their default; it would be nice if they stayed at the selected value to indicate what the table is showing (that confused me a couple of times), 3) It doesn't seem you can turn off the channel numbers anymore; the EARFCN check box appears to be ignored. I swear this used to work.

05 10 2017
17:09

Mohit

Please see if contents of the links below can be published alongside with the table for frequency bands. http://mohitnarula.com/BandHole_v3_FDD.html and http://mohitnarula.com/BandHole_v1_TDD.html

10 09 2017
22:41

Niviuk

Hi Anant, I added on the UE capabilities a filter by band, number of carriers, or uplink CA

10 09 2017
21:54

Niviuk

Hi Jesse, I added in the "Export" menu a search for a single frequency, a frequency range, in uplink or downlink, for all technos. The menu name is not intuitive but I did not find where else to add it

20 08 2017
12:20

Jesse

Could you add a search function for LTE bands where you enter a frequency or a frequency range and it would show all bands that include that frequency/range? Would be really useful!

10 08 2017
18:44

FGB

Hi, yesterday this site was down?

03 08 2017
20:23

Anant

Thanks for implementing ... dl-256QAM and ul-64QAM-r12

27 07 2017
19:35

Dario

Dear, where Can I find information about LMS(Layer Management strategy) in LTE?

23 07 2017
22:19

Niviuk

Sunil, fixed gapoffsets that can be spread over two SFNs

23 07 2017
22:18

Niviuk

Anant, added dl-256QAM and ul-64QAM-r12 information associated to each LTE band

18 07 2017
15:05

Anant

Hi, Is it possible to support INTEL chipset based UE CAPABILITY INFORMATION protocol message?

18 07 2017
10:25

Sunil Joseph

I believe measurement gaps ought to be 6ms long everytime. When selecting gapoffsets can they be spread over two SFNs ?. If my understanding is correct, then the display does not show the entire 6 sub frames in such cases

11 07 2017
22:50

Niviuk

Bill, from Wikipedia LTE networks, B3 is used widely : Europe, Asia, Korea, Africa, Australia, South America, but not in USA

11 07 2017
22:46

Niviuk

Iman, I used only 3GPP and LTE-U specs where it is indicated as downlink only. I ldon't know about WiFi field

07 07 2017
03:39

Bill

I am trying to understand why the GEO Area for band 3 is shown as 'All'

06 07 2017
14:36

Anant

Hello, Enhancement Request to existing UE Capabilities Tool: Is it possible to include dl-256QAM, ul-64QAM-r12 information associated to each LTE band? Thanks,

30 06 2017
14:35

Iman

Hello ,excellent work ! I wonder if the bands 5150-5250 and 5725-5850 are for LTE downlink or Uplink, because in the LTE field i found the specification of DL only and in the WIFI field is marked LTE UL !! Thank u in advance :)

28 06 2017
22:43

Niviuk

Hi, I need to search on the web, as I don't know how that can be done, I guess calling the php functions from any client

23 06 2017
23:20

Vignesh Kannan

Excellent data. I am wondering whether you guys provide any API's to access the information from a code. I did go through the export section. But I am curious about the API side. Thanks

30 05 2017
22:21

Niviuk

You are right, I changed the column name

29 05 2017
18:00

Stefan Blomeier

Dear Sir, regarding LTE TDD you made nice table and picture for the SSF. But I think there is a mistake in the description for "SSF Special SubFrame, normal CP (Dw / GP / Up)" => you named the column "number of slots per subframe" but it should be rather "number of OFDM-Symbols per subframe" as the Normal CP allows for 14 Symbols in a Subframe of 1ms. thanks for your great tables and analysis. I appreciate your efforts. kind regards, Stefan

09 05 2017
22:00

Jochen

Thanks for this site and your effort. Amazing source of information!

02 05 2017
23:32

Niviuk

OP or OPc is stored in the SIM card, and in the HLR

02 05 2017
02:42

Asalo

Hello i want to obtain the OP or OPC.... i have the ki .... how i can do? Help me please!!
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