IRAT TT Strategy Ericsson Parameters

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IDLE AND PACKET CONNECTED MODE GSM to UMTS Strategy: Go to WCDMA whenever WC GSM Parameters Default Value Value to be implemented FDDQMIN 0 (-20dB) 7 (-12dB) FDDQOFF 8 (0dB) 0 (-inf --> disable) QSI 15 (never) 7 (always) COEXUMTS 0 (OFF) 1 (ON) FDDQMINOFF 0 (0dB) 0 (0 dB) FDDRSCPMIN 6 (-102 dBm) 6 (-102 dBm) UMTS to GSM Strategy : Reselection to WCDMA whe Ericsson Default Parameters serve TT Strategy UMFI (MFDDARFCN- MSCRCODE- DIVERSITY) FDDQMIN : defines the minimum threshold for the “qual reselection to UTRAN FDDQOFF : defines cell reselection offset to UTRAN ce QSI : defines when the monitoring of UMTS cells will indicator Qsearch_I for idle mode. COEXUMTS: used to determine if cell reselection and h allowed For Ericsson 2g BSS: RLSUP:CELL=ALL; This command prints system information UTRAN data for

Transcript of IRAT TT Strategy Ericsson Parameters

Page 1: IRAT TT Strategy Ericsson Parameters

IDLE AND PACKET CONNECTED MODE

GSM to UMTS Strategy: Go to WCDMA whenever WCDMA Coverage is available

GSM Parameters Default Value Value to be implemented CommentFDDQMIN 0 (-20dB) 7 (-12dB)FDDQOFF 8 (0dB) 0 (-inf --> disable)

QSI 15 (never) 7 (always)COEXUMTS 0 (OFF) 1 (ON)

FDDQMINOFF 0 (0dB) 0 (0 dB)

FDDRSCPMIN 6 (-102 dBm) 6 (-102 dBm)

UMTS to GSM Strategy : Reselection to WCDMA when very bad radio conditions

Ericsson Default Parameters serve TT Strategy

If Combined Cell Reselection triggering GSM to WCDMA enabled if

COEXUMTS=2

UMFI (MFDDARFCN- MSCRCODE- DIVERSITY)

defines the frequency, scrambling code and diversity information for a

UTRAN neighbouring cell.(MFDDARFCN: 0 to 16383

MSCRCODE: 0 to 511 DIVERSITY: DIV, NODIV)

FDDQMIN : defines the minimum threshold for the “quality” measure Ec/No for cell reselection to UTRANFDDQOFF : defines cell reselection offset to UTRAN cellsQSI : defines when the monitoring of UMTS cells will be performed. Quality search indicator Qsearch_I for idle mode.COEXUMTS: used to determine if cell reselection and handovers from GSM to UMTS is allowed

For Ericsson 2g BSS:

RLSUP:CELL=ALL; This command prints system information UTRAN data for all internal cells in the BSC.

Page 2: IRAT TT Strategy Ericsson Parameters

CS CONNECTED MODE

GSM to UMTS Strategy: No HO towards WCDMA terminate voice call in GSM

GSM Parameters Default Value Value to be implementedQSC 15 (never) 15 (never)QSCI 0 1 (QSC value)

FDDARFCNUTRAN neighbour info SCRCODE

UTRANID (RNCID-CI-MCC-MNC-LAC)

UMTS to GSM Strategy : HO when WCDMA when very bad radio conditions

Ericsson Default Parameters serve TT Strategy

QSC: defines when the monitoring of UMTS cells will be performed (Active mode threshold Qsearch_C) QSCI: defines the control of UTRAN measurement after entering active mode (Active mode threshold initial (Qsearch_C_Initial))

For Ericsson 2g BSS: RLSUP:CELL=ALL; This command prints system information UTRAN data for all internal cells in the BSC.