EARFCN 2300 TDD

[Achmad Rizal Danisya]

Hi All, 

I'm trying to configure the EARFCN to 2.3 GHz band 40 China TDD which is 38650 
but I got 0 for RSRP and SINR in DlRsrpSinrStats.txt
I read from this forum that Nicola suggest to change the EARFCN limitation in lte-enb-net-device.cc
and there I've already changed it to these :

.AddAttribute ("DlEarfcn",

                   "Downlink E-UTRA Absolute Radio Frequency Channel Number (EARFCN)"

                   "as per 3GPP 36.101 Section 5.7.3. ",

                   UintegerValue (100),

                   MakeUintegerAccessor (&LteEnbNetDevice::m_dlEarfcn),

                   MakeUintegerChecker<uint16_t> (0, 39649))  // <---------change here                       

.AddAttribute ("UlEarfcn",

                   "Uplink E-UTRA Absolute Radio Frequency Channel Number (EARFCN)"

                   "as per 3GPP 36.101 Section 5.7.3. ",

                   UintegerValue (18100),

                   MakeUintegerAccessor (&LteEnbNetDevice::m_ulEarfcn),

                   MakeUintegerChecker<uint16_t> (18000, 39649)) // <----------- change here

then I "./waf" and "./waf configure" it, but still I can't get any RSRP and SINR value, any suggest ?

[Konstantinos]

Hi,

Just one comment, I can't help you more with that.

LTE module in NS-3 is currently only FDD, no TDD. So, that's might be your problem.

Regards,

K.

[Achmad Rizal Danisya]

thanks for your reply, but still although I've tried to make it to FDD band I still can't get a RSRP and SINR trace result
I calculate the EARFCN using this website http://niviuk.free.fr/lte_band.php, as you can see from my sript below I use 1800 MHz for DL dan 1710 for UL

        NetDeviceContainer enbDev = lteSys->InstallEnbDevice(enbCon);

Ptr<LteEnbNetDevice> enbPtr = enbDev.Get(1)->GetObject<LteEnbNetDevice>();

enbPtr->SetDlBandwidth(15); //in MHz max throughput 129 Mbps

enbPtr->SetUlBandwidth(6); //in MHz max throughput 43 Mbps

enbPtr->SetDlEarfcn(1200); // DCS 1800 band 3, freq = 1805

enbPtr->SetUlEarfcn(19200); // DCS 1800 band 3, freq = 1710

std::cout<<enbPtr->GetDlEarfcn()<<std::endl;

std::cout<<enbPtr->GetUlEarfcn()<<std::endl;

any suggestion ?
oh yeah after this I must make a VoIP and Video simulation, I already tried the evalvid but looks like it can't work with my lena version, which I read it from the change.html is ns-3.18 basis, any suggestion again ?
thank you

[Nicola Baldo]

I recommend instead to use lteHelper->SetEnbDeviceAttribute () before the eNB device is created.

[Achmad Rizal Danisya]

OK that's already resolved, thank you so much for suggestion, Sir

I have another question Sir, it's about the connection between
ns3::EpcX2 class and ns3::EpcX2Sap class, I want to access the
EpcX2Sap::CompositeAvailCapacity->capacityValue but looks like I can't
make a Pointer directly from the existing eNB Node I made to
ns3::EpcX2Sap class since it doesn't have any "ref" inheritance (right
?), but I need that uint16_t value to make a modified SON algorithm
... any suggestion Sir ?

On 9/4/13, Nicola Baldo <nba...@cttc.es> wrote:
> I recommend instead to use lteHelper->SetEnbDeviceAttribute () before the
> eNB device is created.
>

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[michael wang]

Hi,
l meet the the same question of no SINR. Could you tell me the solution?
thank you