Patent ID: 11871402
Assignee: MAVENIR NETWORKS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A system comprising:
a Baseband Unit (BBU) comprising a Control Unit (CU) configured to transmit, via a fronthaul interface, a discovery reference signal (DRS) transmission to a Remote Radio Unit (RRU), wherein a Control Unit (CU) of the BBU is configured to:
send the DRS signal at a time DRSth,1 or a time DRSth,2;
send an LBT DRS request at a target subframe for Listen Before Talk (LBT) sensing; and
determine if a discovery measurement timing configuration (DMTC) offset time has passed; and
if so, end the DRS transmission and if not,
determine if a current time is DRSth,1 or DRSth,2, (Tnow=DRSth,1 or Tnow=DRSth,2 ?); and if so, send the DRS transmission.