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| Date | Name | Comment |
23 07 2021 |
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 |
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 |
Mark |
The best 3GPP resource on the web (after 3gpp.org). Thanks so much for putting it together. |
17 06 2021 |
LG |
Hi Norbert, it is fixed |
14 06 2021 |
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 |
LG |
Hi, NR CA bandwidth class has been updated. Thanks for feedback |
26 05 2021 |
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 |
xuyuanxing |
A great website, could you please inform us periodically on this forum when any part of the website is updated? |
12 05 2021 |
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 |
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 |
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 |
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 |
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 |
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 |
LG |
Hi Eric, I plan to update after next 3GPP release by the end of this month |
02 03 2021 |
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 |
LG |
Hi xuyuanxing, thanks for feedback, it is repaired |
26 01 2021 |
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 |
LG |
Hi Nguyen, it is updated, Thanks |
10 12 2020 |
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 |
LG |
Hi Espoo, there is a new page Arfcn Point A |
22 11 2020 |
LG |
Hi Nguyen, I fixed the BCS value, Thanks |
20 11 2020 |
Emre |
Hi, Is it only me that UE Capability Pretty viewer stuck and not giving any output? |
20 11 2020 |
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 |
LG |
Hi MMT, SCS configurations have been added to the export |
08 11 2020 |
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 |
MMT |
Great website, Keep going thanks very much!
The csv export of bands does not include Channel bandwidth and scs configurations.
|
06 11 2020 |
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 |
Espoo |
Hi LG,
how to calculate cell freq center based on absoluteFrequencyPointA/ absoluteFrequencySSB for NR? Suggest add a page. thx |
21 10 2020 |
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 |
LG |
Hi AlexH, could you please provide an example ? not sure where is the issue |
18 10 2020 |
LG |
Hi Craig, fixed. Bug comes from the addition of n96 that extends above 7GHz |
15 10 2020 |
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 |
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 |
LG |
Hi Andrew, I have distinguished subframes and slots between FR1 and FR2 Thanks |
30 09 2020 |
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 |
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 |
Anouar |
Would you kindly share the 3GPP source that addresses the overlapping bands for 5G NR via MFBI functionality.
Thank you!
|
22 09 2020 |
LG |
Hi LC, arrows direction is now fixed, Thanks |
21 09 2020 |
LC |
Dear LG,
on https://www.sqimway.com/nr_nas.php#registration, Authentication req/SMC have incorrect direction. |
03 09 2020 |
BC |
Great web, been using it since the previus url. Regards from Uruguay! |
30 08 2020 |
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 |
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 |
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 |
EA |
Thanks for this site. Ive been using it as reference for years. Keep up the good work! |
02 08 2020 |
LG |
Hi, I checked with Chrome a Firefox, it seems ok, can you try again ? Thanks |
31 07 2020 |
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 |
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 |
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 |
LG |
Hi, new pages added C-Band and KDF security keys |
09 07 2020 |
Stan M |
Is the source code for the "UE capability tool" available for download somewhere? |
08 07 2020 |
Juhyuk Choi |
Amazing information! Thank you. |
05 07 2020 |
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 |
LG |
Hi Wallace, in the main menu, select Export, you may export bands for all techno in csv format |
16 06 2020 |
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 |
Bruce |
All RRC timers and SIM timers are wanted |
11 06 2020 |
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 |
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 |
Nuno Fernandes |
Is it possible to include some information about DSS (Dynamic Spectrum Sharing)?
Great work!!! |
22 04 2020 |
LG |
Impressive ! find this error among hundred of combinations. Fixed |
22 04 2020 |
Brian Wolf |
For downlink 3C-7A-8A, third band is displayed as 20, but it should be 8.
|
20 04 2020 |
LG |
Added NR NAS page |
19 04 2020 |
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 |
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 |
LG |
Added NR Carrier aggregation R16 Dec 2019 with filter based on mode |
01 03 2020 |
LG |
Hi, I added a BLER rate input parameter to the page nr_pdsch.php |
16 02 2020 |
LG |
Test of forum |
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