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AGPS data update rate

Hi all,

I am currently experimenting with the gps sample and I would like to adjust the AGPS data update interval.

As far as I understand, in the gps sample,  is set to 1 hour.

Is there any configuration option or command that I could use in order to increase or decrease the time interval between two AGPS data request?

Moreover, what is the length (in bytes) of the downloaded AGPS data?

Thank you in advance.

Kind regards,

Panagiotis.

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  • Hi.

    I am not aware of any ways of increasing/decreasing the AGPS update interval. However, as it is the application that is controlling the SUPL library, it should be able to request data more often or ignore the modem's requests.

    As for how much data is downloaded, I was not able to find a precise number after a quick search, other than 1-10kB, depending on the frequencies of the downloads. The ephemerides (480 bits when downloaded from the satellites) are downloaded every hour, while the almanac (15000 bits when downloaded from the satellites) stays valid for several months.

    Best regards,

    Didrik

Reply
  • Hi.

    I am not aware of any ways of increasing/decreasing the AGPS update interval. However, as it is the application that is controlling the SUPL library, it should be able to request data more often or ignore the modem's requests.

    As for how much data is downloaded, I was not able to find a precise number after a quick search, other than 1-10kB, depending on the frequencies of the downloads. The ephemerides (480 bits when downloaded from the satellites) are downloaded every hour, while the almanac (15000 bits when downloaded from the satellites) stays valid for several months.

    Best regards,

    Didrik

Children
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