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TI Home » TI E2E Community » Support Forums » Low Power RF & Wireless Connectivity » Low Power RF Proprietary Software & SimpliciTI Forum » Whats correct? A low or a high LQI value is better?
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Whats correct? A low or a high LQI value is better?

Whats correct? A low or a high LQI value is better?

This question is not answered
Marcell Thewes
Posted by Marcell Thewes
on Jun 26 2012 07:24 AM
Prodigy10 points

Hello,

in my mind there is a difference between the datasheet of the CC1110 SoC and in this forum. In the datasheet is said that a high LQI value indicates a better link quality (chapter 13.10.8) and in this forum is said that a low LQI value indicates a better link ( http://e2e.ti.com/support/low_power_rf/w/design_notes/calculation-and-usage-of-lqi-and-rssi.aspx ).

Whats the correct one of these two?

Thanks for help.

cc1110 LQI
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  • Sverre
    Posted by Sverre
    on Jun 27 2012 14:54 PM
    Genius14120 points

    CC1110 datasheet is wrong and needs to be corrected

    Correct is: A low value indicates a better link than what a high value does

     

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  • Joseph Orender
    Posted by Joseph Orender
    on Sep 10 2012 10:05 AM
    Prodigy100 points

    Is this true for all the old chipcon datasheets? For example, the CC2500 explains that low LQI numbers mean low link quality while high values mean good link quality. 

    "LQI is best used as a relative measurement of the link quality (a high value indicates a better link than what a low value does), since the value is dependent on the modulation format."

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  • emrah spl
    Posted by emrah spl
    on Jan 30 2013 03:32 AM
    Intellectual330 points

    Hi Dears,

    I have problem with getting LQI values? Do you have any idea how can I obtain it? (for CC2530)

    I have searched on hal_rf and basic_rf libraries, but I cannot find anything.

    Regards,

    Emrah

    CC2530 LQI
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