Re: [Openbts-discuss] Bogus timestamp from JSONEventsClient

[Neel P. <nee...@et...>]

Hello Simon Pålstam:

These timestamps that you're seeing could be the result of overruns, or
maybe just of bad signed math, but I don't think they are USRP-related
values, and they're not coming from UHD, as far as I can tell.

Do these strange timestamps occur just once or twice or infrequently, or
regularly?

--Neel Pandeya


> ---------- Forwarded message ----------
> From:
​​
​​
Simon Pålstam <sim...@st...>
> Date: 29 March 2016 at 05:28
> Subject: [Openbts-discuss] Bogus timestamp from JSONEventsClient
> To: ope...@li...
>
>
> Hi I'm using JSONEventsClient to get physical measurements from OpenBTS
but
> I don't know how to interpret the timestamps I get. To me it seems to be
an
> overflow, is there anyone who has an idea what might cause this?
>
> This is what my measurements look like:
>
> {
> "data" : {
> "burst" : {
> "RSSI" : -34.0095,
> "RSSP" : -6.00945,
> "actualMSPower" : 5,
> "actualMSTimingAdvance" : 0,
> "timingError" : -1.04978
> },
> "channel" : {
> "ARFCN" : 120,
> "IMSI" : "240078585304473",
> "carrierNumber" : 0,
> "timeslotNumber" : 1,
> "typeAndOffset" : "TCH/F",
> "uplinkFrameErrorRate" : 0.0585415
> },
> "reports" : {
> "neighboringCells" : [],
> "servingCell" : {
> "RXLEVEL_FULL_dBm" : -48,
> "RXLEVEL_SUB_dBm" : -48,
> "RXQUALITY_FULL_BER" : 0.0028,
> "RXQUALITY_SUB_BER" : 0
> }
> }
> },
> "name" : "PhysicalStatus",
> "timestamp" : "18446744072250882950",
> "version" : "0.1"
> }
>
> The timestamp on the measurement is as you can see 18446744072250882950,
and
> the associated UNIX time is 1458830211.
>
> Thanks for any help
>
> /Simon
>
>
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