Advanced Usage


The srsENB supports MIMO transmission modes 2, 3, and 4. You only need to set up the transmission mode and the number of eNb ports in the enb.conf file:

tm = 3
nof_ports = 2

The eNb configures the UE for reporting the Rank Indicator for transmission modes 3 and 4. You can set the rank indicator periodic report in the file rr.conf field m_ri. This value is multiples of CQI report period. For example, if the CQI period is 40ms and m_ri is 8, the rank indicator will be reported every 320ms.