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1–30 of 507

Public group for discussing 5G-LENA topics.

Please search previous questions before asking here. There is a high probability that a similar question has already been resolved here.

Also, please be aware that for reporting bugs or issues, there is the "Issue" section on the Gitlab interface.

0 selected

Shadab, Tom Henderson3

Jun 13

Support for manual handover on 5G-LENA

Hi Tom, Thanks a lot for the information. Best Regards Shadab From: 'Tom Henderson' via 5G-

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Support for manual handover on 5G-LENA

Hi Tom, Thanks a lot for the information. Best Regards Shadab From: 'Tom Henderson' via 5G-

Jun 13

Mac Millan, Gabriel Ferreira2

Jun 13

How to do configrations to make package loss and HARQ occurs between GNB and UE?

It will usually happen due to fast fluctuations of the channel. Since it is hard to get these while

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How to do configrations to make package loss and HARQ occurs between GNB and UE?

It will usually happen due to fast fluctuations of the channel. Since it is hard to get these while

Jun 13

5G-LENA-users, … Gabriel Ferreira7

Jun 11

5G-LENA v4.0 release (compatible with ns-3.44)

OpenGym needs to be updated, it seems. On Tuesday, June 10, 2025 at 6:49:49 PM UTC+2 bish...@gmail.

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5G-LENA v4.0 release (compatible with ns-3.44)

OpenGym needs to be updated, it seems. On Tuesday, June 10, 2025 at 6:49:49 PM UTC+2 bish...@gmail.

Jun 11

Guy Gabay, Kent Huns2

Jun 6

How to disable HARQ

Check some examples. nrHelper->SetSchedulerAttribute("EnableHarqReTx", BooleanValue(

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How to disable HARQ

Check some examples. nrHelper->SetSchedulerAttribute("EnableHarqReTx", BooleanValue(

Jun 6

Staji Wilson, Gabriel Ferreira2

Jun 4

RLC Layer stops transmitting packets after NACK

We fixed a few issues related to BSR and HARQ in release 4.0. Recommend switching to it. On Tuesday,

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RLC Layer stops transmitting packets after NACK

We fixed a few issues related to BSR and HARQ in release 4.0. Recommend switching to it. On Tuesday,

Jun 4

Alan Birchler, Biljana B.2

May 29

Possible for different UE sets to communicate on different BWPs?

Hi Alan, yes, if I remember correctly you are right, NrHelper expects the same PHY configuration of

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Possible for different UE sets to communicate on different BWPs?

Hi Alan, yes, if I remember correctly you are right, NrHelper expects the same PHY configuration of

May 29

Andres Calle, Gabriel Ferreira3

May 13

RSRP Measurement Granularity in Sidelink Mode 2 Implementation

*We are working on that. On Tuesday, May 13, 2025 at 3:03:58 PM UTC+2 Gabriel Ferreira wrote: I haven

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RSRP Measurement Granularity in Sidelink Mode 2 Implementation

*We are working on that. On Tuesday, May 13, 2025 at 3:03:58 PM UTC+2 Gabriel Ferreira wrote: I haven

May 13

Jing Zhu

May 7

Announcing the Alpha Release of NS-3 Web Service

Hello everyone, We're excited to announce the alpha release of our cloud-based NS-3 web service,

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Announcing the Alpha Release of NS-3 Web Service

Hello everyone, We're excited to announce the alpha release of our cloud-based NS-3 web service,

May 7

Djamel Sadok

May 6

low delay DRB

Hi, I would like to give some TCP flows a lower delay, can I do this through changing for example DRB

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low delay DRB

Hi, I would like to give some TCP flows a lower delay, can I do this through changing for example DRB

May 6

Guy Gabay, Gabriel Ferreira5

May 5

Optimizing Simulation Runtime by Precomputing the Channel Matrix for Static UEs

Hi Gabriel, Thank you very much for your helpful and detailed response! I have a couple of follow-up

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Optimizing Simulation Runtime by Precomputing the Channel Matrix for Static UEs

Hi Gabriel, Thank you very much for your helpful and detailed response! I have a couple of follow-up

May 5

Michael Twumasi

May 4

5G simple model

Hello please can anyone of you take a look at my code and tell me what is wrong and how to fix it.

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5G simple model

Hello please can anyone of you take a look at my code and tell me what is wrong and how to fix it.

May 4

Michael Twumasi, Gabriel Ferreira2

Apr 30

Need help

sudo apt install gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0

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Need help

sudo apt install gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0

Apr 30

Kamil Kociszewski, … Gabriel Ferreira4

Apr 28

RSRP drop when using b78/100MHz

Thank you for clarification. piątek, 25 kwietnia 2025 o 23:07:09 UTC+2 Gabriel Ferreira napisał(a):

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RSRP drop when using b78/100MHz

Thank you for clarification. piątek, 25 kwietnia 2025 o 23:07:09 UTC+2 Gabriel Ferreira napisał(a):

Apr 28

man...@gmail.com, Tom Henderson2

Apr 27

DoDispose missing from certain classes.

Usually it is because the author did not test with valgrind (or the repository itself is not being

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DoDispose missing from certain classes.

Usually it is because the author did not test with valgrind (or the repository itself is not being

Apr 27

Pratyush Sharma

Apr 26

NS_ASSERT failed: Attempted to dereference zero pointer in TDMA simulation

Hi everyone, I'm working on setting up a basic 5G NR TDMA simulation using ns-3.42 with 5G-LENA.

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NS_ASSERT failed: Attempted to dereference zero pointer in TDMA simulation

Hi everyone, I'm working on setting up a basic 5G NR TDMA simulation using ns-3.42 with 5G-LENA.

Apr 26

Rosario Patanè, … Gabriel Ferreira6

Apr 25

Maximum amount of UE

There is a typo in Gnb Config::SetDefault("ns3::NrGnbRrc::SrsPeriodicity", UintegerValue(

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Maximum amount of UE

There is a typo in Gnb Config::SetDefault("ns3::NrGnbRrc::SrsPeriodicity", UintegerValue(

Apr 25

Aman Gupta, Gabriel Ferreira3

Apr 24

Regarding Large Scale gNB and UE simulation

I also wanted to check — what's the maximum number of gNBs and UEs you've been able to stress

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Regarding Large Scale gNB and UE simulation

I also wanted to check — what's the maximum number of gNBs and UEs you've been able to stress

Apr 24

ACDC, Gabriel Ferreira3

Apr 23

Build fail with undelcared `uint` in `examples/cttc-nr-fh-xr.cc`

Fixed in https://gitlab.com/cttc-lena/nr/-/merge_requests/266 On Wednesday, April 23, 2025 at 10:14:

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Build fail with undelcared `uint` in `examples/cttc-nr-fh-xr.cc`

Fixed in https://gitlab.com/cttc-lena/nr/-/merge_requests/266 On Wednesday, April 23, 2025 at 10:14:

Apr 23

Kamil Kociszewski, Gabriel Ferreira3

Apr 22

Scenario which include cells with different frequencies, not CA, possible for UE to change BWPs during sim??

Thank you Gabriel, > UEs do not connect to cells with band2 (no traffic, no RSRP, manual attach to

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Scenario which include cells with different frequencies, not CA, possible for UE to change BWPs during sim??

Thank you Gabriel, > UEs do not connect to cells with band2 (no traffic, no RSRP, manual attach to

Apr 22

Juan HM, … Gabriel Ferreira6

Apr 18

High latency, low throughput

> If this is the cause, there should be only one UE achieves high throughput & low latency.

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High latency, low throughput

> If this is the cause, there should be only one UE achieves high throughput & low latency.

Apr 18

omar tarek, Kent Huns5

Apr 16

Antenna Reconfiguration , power per port

Thanks for the help Kent much appreciated I will try and let you know If there is any updates Thanks

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Antenna Reconfiguration , power per port

Thanks for the help Kent much appreciated I will try and let you know If there is any updates Thanks

Apr 16

Alan Birchler, Gabriel Ferreira2

Apr 16

Control Plane Included in Simulations?

Yes, it does. However, control plane is ideal (no error), while the data plane accounts for errors.

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Control Plane Included in Simulations?

Yes, it does. However, control plane is ideal (no error), while the data plane accounts for errors.

Apr 16

Alan Birchler, Gabriel Ferreira4

Apr 15

Question About 5G Security Mechanisms in 5G-LENA

Yes. No security mechanism is currently implemented. On Tuesday, April 15, 2025 at 11:09:51 AM UTC+2

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Question About 5G Security Mechanisms in 5G-LENA

Yes. No security mechanism is currently implemented. On Tuesday, April 15, 2025 at 11:09:51 AM UTC+2

Apr 15

Juan HM, Biljana B.3

Apr 9

REM plotting only 1 sector

Yeah, I was able to sor this out, I had the configuration for no-overlapping and this was causing me

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REM plotting only 1 sector

Yeah, I was able to sor this out, I had the configuration for no-overlapping and this was causing me

Apr 9

Pratyush Sharma, … Biljana B.3

Apr 9

Issue with Logging Jitter and Delay in TDMA RR Scheduling Simulation

Hello Pratyush, Try to enable PDCP traces to see delay (see NrHelper EnableTraces function). Or as

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Issue with Logging Jitter and Delay in TDMA RR Scheduling Simulation

Hello Pratyush, Try to enable PDCP traces to see delay (see NrHelper EnableTraces function). Or as

Apr 9

Peter Danko, … Biljana B.3

Apr 9

New to NS-3

Hi Peter, did you try to follow 5G-LENA tutorial of cttc-nr-demo? It is true that for one to be able

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New to NS-3

Hi Peter, did you try to follow 5G-LENA tutorial of cttc-nr-demo? It is true that for one to be able

Apr 9

Mohamed Mohsen, Eduardo Fabricio2

Apr 3

Iterations

Yes, I did. I manage it by creating a bash script and changing the variables through the command

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Iterations

Yes, I did. I manage it by creating a bash script and changing the variables through the command

Apr 3

Francis Mutetwa

Apr 2

5G LENA compatibility with SNS-3

Hello, I hope you are well. I want to ask about whether 5G LENA can integrate well with Satellite

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5G LENA compatibility with SNS-3

Hello, I hope you are well. I want to ask about whether 5G LENA can integrate well with Satellite

Apr 2

Maria Eduarda Veras Martins, … Kent Huns17

Apr 1

Low throughput

Hi Maria, Thank you for the update. Roughly speaking, Transport Block Size represents the data

unread,

Low throughput

Hi Maria, Thank you for the update. Roughly speaking, Transport Block Size represents the data

Apr 1

Pratyush Sharma, Kent Huns2

Mar 28

Help Needed: TDMA Simulation in 5G-LENA (NS-3)

Hi, Please check below 2 examples. * Indoor scenario : 120 UEs connect the closest of the 12 gNBs

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Help Needed: TDMA Simulation in 5G-LENA (NS-3)

Hi, Please check below 2 examples. * Indoor scenario : 120 UEs connect the closest of the 12 gNBs

Mar 28