My system setup is as follows: - 2 x USRP x310 with CBX-120 daughterboard - 2 x Ubuntu 18.04 workstation - 2 x Taoglas 45.8113 antenna - 2 x Internal Reference Clock (Master Clock set at 184.32 MHz) - 2 x Internal Time source - 2 x Connected via 1 Gig-E interfaces - 2 x Using UHD 4.1
The devices have been in two setups: stacked and a few inches apart. I am attempting to deploy a 5G network using the openairinterface (OAI) software system. Both devices synchronize initially, then they fail. With openairinterface, I am using frequency offset compensation at the UE. Its a useful parameter when running over the air and/or without an external clock/time source ( https://gitlab.eurecom.fr/oai/openairinterface5g/blob/develop/doc/RUNMODEM.md ) Is there a way to synchronize the reference clock/timing of both USRP x310s over the air? In the future, I will be attempting to connect a third USRP x310. My setup will include one base station and two user devices. V/r LoyCurtis Smith
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