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SDCCH DROPS

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    OKARAI
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    GREETINGS, I RECENTLY CHANGED THE WHOLE SDCCH CONFIGURATION IN MY BSC (ERICSSON SYSTEM), SEND ALL THE SDCCHs IN ALL CELLS TO UL SUBCELL AND SET THE PARAMETER CHAP TO A VALUE OF 5, THE PREVIOUS CONFIGURATION WAS CHAP 8 AND SDCCH IN OL AND UL SUBCELLS, THE TEST DERIVED IN A CONSIDERABLE INCREASE OF THE SDCCH DROPPED CALLS (THE TEST WAS MADE IN ORDER TO ELIMINATE FALSE SDCCH CONGESTION (WHICH IN FACT HAPPENED), SDCCH MHT WAS ALSO INCREASED, FROM 4 TO 4.5 SECONDS, WHAT IS THE DIFFERENCE IN SETTING SDCCH IN OL(BCCH CARRIER) AND UL (HOPPING FRECUENCIES)???? PLEASE POST ANY COMMENTS…

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