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srsUE

srsUE is a software radio LTE UE. It is written in C++ and builds upon the srsLTE library (https://github.com/srslte/srslte). Running on an Intel Core i7-4790, srsUE achieves up to 60Mbps DL with a 20Mhz bandwidth SISO configuration. srsUE is released under the AGPLv3 license and uses software from the OpenLTE project (http://sourceforge.net/projects/openlte) for some security functions and for RRC/NAS message parsing.

Features

PHY Layer

  • LTE Release 8 compliant
  • FDD configuration
  • Tested bandwidths: 1.4, 3, 5 and 10 and 20 MHz
  • Transmission mode 1 (single antenna) and 2 (transmit diversity)
  • Cell search and synchronization procedure for the UE
  • Frequency-based ZF and MMSE equalizer
  • Highly optimized turbo decoder available in Intel SSE4.1/AVX (+100 Mbps) and standard C (+25 Mbps)

Upper Layers

  • LTE Release 8 compliant
  • MAC, RLC, PDCP, RRC, NAS and GW layers
  • Soft USIM supporting Milenage and XOR authentication

User Interfaces

  • Detailed log system with per-layer log levels and hex dumps
  • MAC layer wireshark packet capture
  • Command-line trace metrics
  • Detailed input configuration file

Network Interfaces

  • Virtual network interface tun_srsue created upon network attach

Hardware

srsUE currently supports Ettus Research USRP RF front-ends through the USRP Hardware Driver (UHD). Host sample rate conversion is not supported, therefore the hardware should support configurable clock rates. We recommend the USRP B2X0 range.

Download & Install Instructions

Download and build srsUE:

git clone https://github.com/srsLTE/srsUE.git
cd srsUE
mkdir build
cd build
cmake ../
make

The ue application can be found in build/ue/src

Running srsUE

  • Copy and rename the provided configuration file ue.conf.example
  • Check and set configuration parameters
  • sudo ./ue ue.conf

Disclaimer

srsUE is provided with NO WARRANTY OF ANY KIND. Users of this software are expected to comply with all applicable local, national and international telecom and radio spectrum regulations.

Support

Mailing list: http://www.softwareradiosystems.com/mailman/listinfo/srslte-users