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Date Name Comment

12 09 2021
10:27

Mangaldeep Sahoo

Is It Possible to add a separate section for O-RAN also.. It is because in near future it could be the popular among Operators.

23 07 2021
17:30

VK

Hi, Can you please are combos for DC_FR1_FR1? Is there a concept of Dual-connectivity on FR1 + FR1 to a single Operator?

16 07 2021
01:52

Andrew Kolomatski

On the Radio Resource Grip page, it is possible to select "Display max L beams", however the tool automatically implies that all the beams are consecutive starting from 0 to L. However in reality, at least for high band (mmWave), and especially for the band n257 displayed by default on the page, the equipment vendors always use non-consecutive SSB beams and not starting from 0. Would it be valuable to enhance the page where a user could tick the specific beam indexes, not just a range from 0 to L? This would require a TDD pattern compatibility check, however this is exactly how it is implemented in real life, including constraints on suitable SSB indexes imposed by TDD pattern.

21 06 2021
17:29

Mark

The best 3GPP resource on the web (after 3gpp.org). Thanks so much for putting it together.

17 06 2021
22:38

LG

Hi Norbert, it is fixed

14 06 2021
13:07

Norbert

Hi, first I would like to congratulate you for your great WEB-Site, which has been both interesting an useful for me to understand LTE and now 5G. I’m now taking a deeper look into 5G-NAS Messages and stumbled over the issue, that the message-type for 5GS session management messages on your site seem to differ from the types in the 3gpp and ETSI Standard. In your table the first half-Byte of the ID is 6 or 7 where it should be C or D according to the Standard (Table 9.7.2). ETSI TS 124 501 V16.5.1 Table 9.7.2: Bits 8 7 6 5 4 3 2 1 1 1 - - - - - - 5GS session management messages 1 1 0 0 0 0 0 1 PDU session establishment request 1 1 0 0 0 0 1 0 PDU session establishment accept 1 1 0 0 0 0 1 1 PDU session establishment reject 1 1 0 0 0 1 0 1 PDU session authentication command 1 1 0 0 0 1 1 0 PDU session authentication complete 1 1 0 0 0 1 1 1 PDU session authentication result 1 1 0 0 1 0 0 1 PDU session modification request 1 1 0 0 1 0 1 0 PDU session modification reject 1 1 0 0 1 0 1 1 PDU session modification command 1 1 0 0 1 1 0 0 PDU session modification complete 1 1 0 0 1 1 0 1 PDU session modification command reject 1 1 0 1 0 0 0 1 PDU session release request 1 1 0 1 0 0 1 0 PDU session release reject 1 1 0 1 0 0 1 1 PDU session release command 1 1 0 1 0 1 0 0 PDU session release complete 1 1 0 1 0 1 1 0 5GSM status

26 05 2021
22:20

LG

Hi, NR CA bandwidth class has been updated. Thanks for feedback

26 05 2021
12:53

Juergen Schmitt

NR CA: Can you fix the table "CA bandwidth class" according to the latest 38.101-2 (Rel-15, 16 or 17) ? E.g. G has 2 contiguous CC (not 3 as the table now says). Thanks for the great work!

20 05 2021
03:58

xuyuanxing

A great website, could you please inform us periodically on this forum when any part of the website is updated?

12 05 2021
02:02

Gw

The UE Cap info parser gets stuck for r13. Wondering if this is a known issue and any resolution available? Thanks for this tool. great Work .

07 04 2021
16:14

AlinC

Hello, could someone please explain the 2A part from this EN-DC combo or any other combo with (2A): DC_1A_n78(2A) Does this mean: B1 max 20MHz + n78 max 100MHz + n78 max 100MHz? If this is true, what is the difference to DC_1A_n78C ?

01 04 2021
21:45

Ilya

Hi Can you fix "LTE frequency band 36.10" rel date? Now it is 7 Dec 2021, but need to bee 2020.

01 04 2021
20:15

Mike

Is it possible to publish Wi-Fi 6 (802.11ax) channels/frequencies? Love your site, thanks for all the hard work!

26 03 2021
00:36

HA

This site is amazing. Thanks al lot for all the effort putted on it! I use it and recommend it all the time.

18 03 2021
19:13

RD

I receive an invalid configuration when inputting valid channel parameters into the frequency/PointA calculators.. band n71 - absolutelyfrequencySSB NR ARFCN = 126490 I have an odd configuration from a live network. carrierbandwidth: 52 subcarrierspacing: 15 Khz offsettopointA: 18 absoluteFrequnecySSB: 126490 uplink absolutefrequencypointA: 134664 from MIB subcarrierspacingcommon: 15 kHz ssb-subcarrieroffset: 13 These values do not have overlap of CRB and SSB

03 03 2021
23:01

LG

Hi Eric, I plan to update after next 3GPP release by the end of this month

02 03 2021
16:46

Eric

Any chance to update those CA/DC combos for NR? Seems they are still as of June 2020 releases. Much appreciate that!

31 01 2021
22:37

LG

Hi xuyuanxing, thanks for feedback, it is repaired

26 01 2021
02:00

xuyuanxing

Hi, There is something wrong at page PDCCH search spaces. when I choose some configuration with SS/PBCH block and CORESET multiplexing pattern2 and FR2 or SS/PBCH block and CORESET multiplexing pattern3 and FR2, the table should change accordingly, but the actual table the page shows is always SS/PBCH block and CORESET multiplexing pattern1 and FR2.

13 12 2020
21:29

LG

Hi Nguyen, it is updated, Thanks

10 12 2020
14:25

Bich Nguyen

Hi. Thanks for updating the BCS. Could you please also update BCS for 7A-7A in CA_2A-7A-7A-29A-66A to 3, instead of 1? Thanks! :)

29 11 2020
23:25

LG

Hi Espoo, there is a new page Arfcn Point A

22 11 2020
18:33

LG

Hi Nguyen, I fixed the BCS value, Thanks

20 11 2020
20:38

Emre

Hi, Is it only me that UE Capability Pretty viewer stuck and not giving any output?

20 11 2020
11:32

Bich Nguyen

Hello, Thank you for your great work on this site. I have a comment on CA_2A-7C-66A-66A combination. the BCS for 7C should be 2 per 3gpp v16.7.

08 11 2020
21:51

LG

Hi MMT, SCS configurations have been added to the export

08 11 2020
21:50

LG

Hi Andrew, the columns SCS + max bandwidth is just a view of 3GPP maximum allowed bandwidth for each SCS of each single band of the CA combination. This info may overload the page, so I put this info as optional and disabled by default

08 11 2020
13:42

MMT

Great website, Keep going thanks very much! The csv export of bands does not include Channel bandwidth and scs configurations.

06 11 2020
02:59

Andrew Kolomatski

Hi LG, The table "Intra-band contiguous CA" on the https://www.sqimway.com/nr_ca.php page does not seem to add up. First of all, it is not clear what "SCS bandwidth max (MHz)" column name means at all. And a quick example demonstrating that the values in this question might require attention: CA configuration CA_n257M implies 8x100MHz=800MHz carrier aggregation, but the values in the table are 200MHz and 800MHz, if the culumn "SCS bandwidth max (MHz)" is assumed to denote maximum aggregated bandwidth. If this column in fact assumes something else, then 800MHz is not mentioned anywhere anyways.

24 10 2020
20:19

Espoo

Hi LG, how to calculate cell freq center based on absoluteFrequencyPointA/ absoluteFrequencySSB for NR? Suggest add a page. thx

21 10 2020
14:05

AlexH

regarding nominal channel spacing: please have a look at chapter 5.4A.1 Channel spacing for CA of 3GPP TS 38.101-1 V16.5.0. You will realise that the SCS of the CA carriers is no longer taken into account in the way it was used in older specs.

19 10 2020
22:41

LG

Hi AlexH, could you please provide an example ? not sure where is the issue

18 10 2020
21:54

LG

Hi Craig, fixed. Bug comes from the addition of n96 that extends above 7GHz

15 10 2020
20:27

AlexH

The definition of NR nominal channel spacing was changed in 3GPP. Would you please update the page accordingly? Thank you for your work!

14 10 2020
16:36

Craig

A number of the NR bands are currently being graphically misrepresented at the wrong frequencies, n48, n77, n78 for example are too low. for example n48 @ ~ 1800MHz. The table values are correct, however. https://www.sqimway.com/nr_band.php

07 10 2020
21:53

LG

Hi Andrew, I have distinguished subframes and slots between FR1 and FR2 Thanks

30 09 2020
07:25

Andrew Kolomatski

It would appear that there is an ambiguity on the page. First off, the 5th column in the long "PRACH Config Index" table is named "Slot number", whereas in 3gpp 38.211 it is called "Subframe number" in 2 out of 3 cases (for all FR1 cases essentially). But this is not a big deal. The real ambiguity arises in the very bottom table "PRACH occasions" having its 3rd column named "Slot". Looks like it should be either named "Subframe" or a crucial comment must be added, for example like this copy-paste from 3gpp 38.211: For the purpose of slot numbering in the tables, the following subcarrier spacing shall be assumed: - 15 kHz for FR1 - 60 kHz for FR2. As an example of ambiguity, without this comment, a PRACH allocated in subframe 7 (PRACH configuration index 9) in the network with 30kHz SCS, is presented as allocated in Slot 7, while in fact it is located in slots 14&15 of 20-slot frame.

27 09 2020
23:23

LG

Hi Anouar, I dont't know if there is a 3GPP spec about MFBI. Main NR full overlapping bands are (2,25), (5,26), (38,41), (77,78), (257,261)

25 09 2020
02:04

Anouar

Would you kindly share the 3GPP source that addresses the overlapping bands for 5G NR via MFBI functionality. Thank you!

22 09 2020
22:04

LG

Hi LC, arrows direction is now fixed, Thanks

21 09 2020
14:05

LC

Dear LG, on https://www.sqimway.com/nr_nas.php#registration, Authentication req/SMC have incorrect direction.

03 09 2020
18:24

BC

Great web, been using it since the previus url. Regards from Uruguay!

30 08 2020
22:03

LG

Hi Michael, I agree; the usual rule I used is to indicate the 3GPP release of the creation of the band, even if there were some changes in the supported bandwidth later on. The best would be to use a database with information for each release, but it would require a lot more work

26 08 2020
10:49

Michael Wave

NR n38 support for BW 40MHz is stated in the web page that is release in 3GPP r-15. How ever when comparing r-15 and r-16, bandwith is supported only on r-16.

12 08 2020
06:34

SF

Hi, there is no display of NR Channel Sync Raster tool, I have tried with Microsoft Edge, Google, it can display before.

04 08 2020
22:00

EA

Thanks for this site. Ive been using it as reference for years. Keep up the good work!

02 08 2020
17:02

LG

Hi, I checked with Chrome a Firefox, it seems ok, can you try again ? Thanks

31 07 2020
10:53

Ericsson-CAT

Hi, we can not get the value from Arfcn to Frequency or Frequency to Arfcn in NR page, can you check the problem? thanks!

22 07 2020
15:07

GU

Hi LG, first thing a HUGE thank you for the tools & knowledge on this site, really outstanding. Just one ask related to the UECapability decoder/viewer. Any chances you guys could include the MIMO layers for the EN-DC combos as you already do for the LTE/4G CA combos? i.e. based on featureSetCombination(s) and featureSetListPerDownlinkCC info. Thanks in advance

14 07 2020
22:10

LG

Hi Stan M, the UE capability script is not so clean, and has not been updated for 5G, I prefer not to share it

14 07 2020
22:04

LG

Hi, new pages added C-Band and KDF security keys

09 07 2020
18:17

Stan M

Is the source code for the "UE capability tool" available for download somewhere?

08 07 2020
22:16

Juhyuk Choi

Amazing information! Thank you.

05 07 2020
19:55

SSharma

Hello, thanks for putting this together. Great resource. Is there way to generate the UL resource grid like you have one for DL. Thanks

16 06 2020
23:20

LG

Hi Wallace, in the main menu, select Export, you may export bands for all techno in csv format

16 06 2020
12:17

Wallace

Impressive work! thanks for sharing with us! Do we have any way to export the RAT/BW/BAND relation? thanks in advance

15 06 2020
07:32

Bruce

All RRC timers and SIM timers are wanted

11 06 2020
21:51

OB

Impressive work! Wanted to highlight a potential bug in SS/PBCH range [MHz] column in Channel synchronization raster page. The range should be shifted (SCS/2) kHz downwards since SSB frequency maps to the center frequency of resource element #120 of the SSB. Thanks!

19 05 2020
22:57

LG

Hi, on the shared cell, eNb may schedule MBSFN subframe, PDCCH symbol, Cell RS and optionally PRS; if no LTE UE is scheduled on a slot, gNb may transmit on NR slot PDCCH symbol after the LTE PDCCH symbol. It is not so easy to display within a mixed LTE + NR grid

03 05 2020
10:37

Nuno Fernandes

Is it possible to include some information about DSS (Dynamic Spectrum Sharing)? Great work!!!

22 04 2020
22:43

LG

Impressive ! find this error among hundred of combinations. Fixed

22 04 2020
21:36

Brian Wolf

For downlink 3C-7A-8A, third band is displayed as 20, but it should be 8.

20 04 2020
22:24

LG

Added NR NAS page

19 04 2020
21:32

LG

Hi, on this page lte_resource_grid you can see MBSFN subframe(s) and LTE Cell RS configuration; on NR side, each company may have their DL/UL configuration

16 04 2020
00:04

Russel Lindsay

Do you have an "NR Radio Resource" diagram that shows the frame structure of a DSS signal? How will the spectrum be shared between LTE and 5G?

23 03 2020
22:05

LG

Added NR Carrier aggregation R16 Dec 2019 with filter based on mode

01 03 2020
21:49

LG

Hi, I added a BLER rate input parameter to the page nr_pdsch.php

16 02 2020
21:24

LG

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