[srslte-users] EnodeB not working on USRP B200

[Ismaël Mohamadou Kaka]

Hello,
## Issue Description ##
I am trying to setup SrsLTE with Ettus USRP B200. I followed the
instructions at https://github.com/srsLTE/srsLTE/ and have the default
configuration. Once I launched srsepc and then srsenb, I tried to view my
4G network with a cellphone. The issue is that my cellphone doesn't detect
my network. I tried with an Iphone 6 , samsung S7 Edge and samsung A8. I
have no visible errors when I launch srsepc and srsenb. However, I detect
the 4g signal in GNURadio with another USRP. So the problem seems to be in
the configuration files so that the signal is detected by USRPs but not by
cellphones. I also tried with different earfcn.

## Setup Details ##
Operating System : Ubuntu 16.04
Hardware : - USRP B200
                - Antenna: Ettus Vert900 in Tx
                - Antenna: Ettus Vert2450 in Rx
Tx_gain : 80
Rx_gain : 40
Libuhd version : 3.9.2-1

## Expected Behavior ##
LTE signal to be detected by cellphones

## Actual Behaviour ##
LTE signal is not detected by cellphones (But is detected by another usrp)

####
Output below when i launch "sudo srsepc epc.conf" (Directory :
~/srsLTE/srsepc, epc.conf is the default epc conf file)

---  Software Radio Systems EPC  ---

Reading configuration file epc.conf...
HSS Initialized.
MME GTP-C Initialized
MME Initialized. MCC: 0xf208, MNC: 0xff20
SP-GW Initialized.
Received S1 Setup Request.
S1 Setup Request - eNB Name: srsenb01, eNB id: 0x19b
S1 Setup Request - MCC:208, MNC:20, PLMN: 194562
S1 Setup Request - TAC 30120, B-PLMN 0
S1 Setup Request - Paging DRX 2
Sending S1 Setup Response

###
Output below when i launch "sudo srsenb enb.conf" (Directory :
~/srsLTE/srsenb, enb.conf is the default enb conf file)
linux; GNU C++ version 5.3.1 20151219; Boost_105800;
UHD_003.009.002-0-unknown


Built in Release mode using commit 5c088d7 on branch master.

---  Software Radio Systems LTE eNodeB  ---

Reading configuration file enb.conf...
Opening USRP with args: type=b200,master_clock_rate=30.72e6
-- Detected Device: B200
-- Loading FPGA image: /usr/share/uhd/images/usrp_b200_fpga.bin... done
-- Operating over USB 3.
-- Detecting internal GPSDO.... No GPSDO found
-- Initialize CODEC control...
-- Initialize Radio control...
-- Performing register loopback test... pass
-- Performing CODEC loopback test... pass
-- Asking for clock rate 30.720000 MHz...
-- Actually got clock rate 30.720000 MHz.
-- Performing timer loopback test... pass
Setting frequency: DL=2655.0 Mhz, UL=2535.0 MHz
Setting Sampling frequency 11.52 MHz

==== eNodeB started ===
Type <t> to view trace


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