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Thread: CDMA 1X & EVDO Drive Test parameters definitions???

  1. #1
    VIP Member Reputation: 1716 DANORM's Avatar
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    Default CDMA 1X & EVDO Drive Test parameters definitions???

    Hello

    What is right definitons of CDMA2000 1X Drive Test parameters? >
    This parameters is from Dingli Pilot Navigator software...

    -1st Ec/Io
    -2nd Ec/Io
    -3rd Ec/Io
    -4th Ec/Io

    -1st Ec
    -2nd Ec
    -3rd Ec
    -4th Ec

    -Max Ec/Io PN
    -Total Ec/Io
    -Max Ec/Io
    -Reference Ec/Io

    -Max Ec PN
    -Total Ec
    -Max Ec
    -Reference Ec

    -Handoff State

    What is right definitons of CDMA2000 EVDO Drive Test parameters? >


    -1st C/I
    -2nd C/I
    -3rd C/I
    -4th C/I

    -1st SINR
    -2nd SINR
    -3rd SINR
    -4th SINR

    -Total C/I
    -Total SINR

    Thanks

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  3. #2
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    Default Re: CDMA 1X & EVDO Drive Test parameters definitions???

    Also me i want to know this parameters

  4. #3
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    Default Re: CDMA 1X & EVDO Drive Test parameters definitions???

    Quote Originally Posted by DANCESTORM View Post
    Hello

    What is right definitons of CDMA2000 1X Drive Test parameters? >
    This parameters is from Dingli Pilot Navigator software...

    -1st Ec/Io 1st Best Ec/Io of the PNs
    -2nd Ec/Io 2nd Best Ec/Io of the PNs
    -3rd Ec/Io 3rd Best Ec/Io of the PNs
    -4th Ec/Io 4th Best Ec/Io of the PNs

    actually the searcher finger in the rake receiver always search for the pilot strength of all the PNs in a defined way. The softwares reports the Ec/Io of all the PNs.

    -1st Ec
    -2nd Ec
    -3rd Ec
    -4th Ec
    Just as RSCP in WCDMA. Ec is the measured energy of the PN
    -Max Ec/Io PN
    -Total Ec/Io
    -Max Ec/Io
    -Reference Ec/Io
    Total Ec/Io is the combined Ec/Io of all the locked fingures at the rake receiver (Active), Max Ec/Io is the maximum Ec/Io of all the fingures in active set. Reference cell is the one which is primary cell (call origination or handed over to) The refernce Ec/Io may not be the best at a particular instant.
    -Max Ec PN
    -Total Ec
    -Max Ec
    -Reference Ec

    -Handoff State
    Simultaneous connectivity to two or more legs.

    What is right definitons of CDMA2000 EVDO Drive Test parameters? >


    -1st C/I
    -2nd C/I
    -3rd C/I
    -4th C/I

    -1st SINR
    -2nd SINR
    -3rd SINR
    -4th SINR

    -Total C/I
    -Total SINR

    Same Definitions as for Ec/Io except a difference that in CDMA the Ec is a subset of interference and Ec/Io is always less than 0 and calculated before de-spreading whereas In SINR or C to I is just like C/I in GSM, are greater than 1 and calculated after de-spreading.

    SINR and C/I are closely related with a small difference that C/I is carrier to interference ratio and SINR is Carrier to interference and noise ratio.


    Thanks
    Repo Please if it helps you.

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