Hello Skyung, Can you please explain what each N310 is doing in this set up?
The reason you would sync two N310s using external sources like 10 MHz clock ref, PPS, or GPSDO is to ensure that baseband samples are aligned, or use cases like MIMO or TDOA. I am not sure about time source sync using NTP... N310 also has ethernet-based sync using the White Rabbit protocol over optical cables, see this app note https://kb.ettus.com/Using_Ethernet-Based_Synchronization_on_the_USRP%E2%84%A2_N3xx_Devices. However, I'm not aware that sync over NTP is a feature. Internally, there are two AD9371 transceivers, which can be synchronized using the built-in clock system for MIMO operation. Regards, Wan On Thu, Aug 11, 2022 at 3:03 PM skyung--- via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi all, > > > I am deploying Open Air Interface 5G with USRP n310s and just want to > verify something. > > So the question is - for the communication using FDD between a base > station and UE, two n310s should be synced through an external time source > (such as NTP), right? > > Or should the internal clock source suffice? > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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