LTE Send and Receive

[batgun]

Hello;

I am currently trying to implement a LTE scenario that each node (UE) can send and receive data packet

from or to base station. In addition to this, base station can also broadcast a packet. In forum, there are some

kind of suggestions that use UdpClient/UdpServer helper classes. However, I want to simulate in a way that

node decides to send packet to base station, not periodic way. Any help or tutorial is appreciated.

Kind regards,

[batgun]

Hi;

I also use the OnOffHelper class but the result is same. Any help or tutorial is 

appreciated. I search the forum, despite there are some threads related with my problem

no solution is found up to now. 

Kind regards,

[Nicola Baldo]

You mean that you want to send just *one* packets? You could use the MaxBytes attribute of the OnOffApplication to achieve this.
See doxygen for a description:
http://www.nsnam.org/doxygen-release/classns3_1_1_on_off_application.html

[Batuhan Aman]

Hi Nicola;

Thanks for your reply. Actually I am trying to send specific data packet to base station(eNodeB).

Then the next step is decoding the packet and if it is necessary eNodeB sends back to other node

in network.  Do you have any tutorial related with this scenario?

Kind regards,

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[Nicola Baldo]

On Wednesday, February 6, 2013 8:51:47 PM UTC+1, batgun wrote:

Thanks for your reply. Actually I am trying to send specific data packet to base station(eNodeB).

Then the next step is decoding the packet and if it is necessary eNodeB sends back to other node

in network.  Do you have any tutorial related with this scenario?

no I don't have any tutorial for this scenario, sorry.
Anyway, please note that the UE talks at the IP level only with the PGW, not with the eNB. See this picture:
http://lena.cttc.es/manual/lte-design.html#fig-lte-epc-e2e-data-protocol-stack

[batgun]

Hi Nicola;

Thanks for your replies. I want to ask one of related question. In codes that

I modify, I see that eNodeB sends specific size packets to UE. Also UEs 

get the sent packet successfully.  What about vice versa which UEs send

packets and eNodeB receives? Do you know that ns3 has this kind of example 

lte codes?

Kind regards,

[Marco Miozzo]

Hi,

the information you are asking are included in the uplink (transmission from UEs to eNB) traces, you may check the traces with tag "Ul" which most of the examples generate.

BR,
marco.

[batgun]

Hi Marco;

Thanks for your reply. Can you provide some examples about how to open the traces from UEs to eNB?

I could not figure it out.

Kind regards,

[Marco Miozzo]

Hi,

you may find all the information in the manual on this respect:
http://lena.cttc.es/manual/lte-user.html#simulation-output

Regards,
marco.

[Batuhan Aman]

Hi Marco;

Thanks again for your fast response. Whenever I tried to enable the ltehelper 

phytraces or macraces, the ns3 generates "Method ---- could not be resolved".

As far as I understand I use one of the old version of ns3. Can you give me 

some direction about how I can make ns3 define these methods?

Thanks for your help,

Kind regards,

[batgun]

Hi ;

I manage to solve the problem related with "Method ---- could not be resolved".
However, I am still trying to send and receive specific data packet. I am trying to
send DATA packet which is generated by my program. Is there a way that I can
manage the defined scenario? Thanks for responses up to now.

Kind regards,

Kind regards,

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[Marco Miozzo]

Hi,

you may refer to example folder of lte modulte, for instance lena-dual-stripe is sending and receiving UDP packets.

Best regards,
marco.

[RESHU VERMA]

Hii Batgun,

Did you able to resolve the problem of sending specific data packet from ue to ue?

regards,

Reshu