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• File bts/BTS_Tests.ttcn:

  • Patch Set #1, Line 3894: /* tell trxcon to use a given TA for UL bursts */

    a lot of trxcon blackmagic which is need to "set TA on trxcon"

    
    "set TA on trxcon" is a simplification. This concept of separate TA existed even before trxcon: there's TA that's actually used on the radio interface (set via `f_L1CTL_PARAM()`) and TA indicated to the network in UL SACCH (set via `f_send_meas_rep()`). This is related to the "fake TA" feature of the mobile app. The firmware behaves this way and trxcon replicates that. This is why we do it this way.

    The testcase API can be improved in a separate patch. I believe it's a good idea to do `f_send_meas_rep()` in `f_est_dchan()` before calling `f_l1ctl_est_dchan()`. This way we make sure that trxcon always indicates expected/known values in the L1 SACCH header.

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