dokumen.tips_gsmdcs-handover-algorithm.pptx

gsm

1. GSM900 and DCS1800 handover Discussion

2. Handover decisions based on handover algorithm 1, Emergency handover （ Priority level 1 ） 2, Load handover （ Priority level 2 ） 3, Normal handover （ Priority level 3 ）

3. Emergency handover （ Don’t consider cell level ） TA Handover Interference handover Rapid level drop handover BQ Handover

4. Emergency Handover parameter and explanation TA Handover TA HO Allowed (YES) TA Threshold (63)

5. Emergency Handover parameter and explanation Interference HO Interference HO Allowed (YES) DL Qual.Threshold (50) UL Qual.Threshold (50)

6. Emergency Handover parameter and explanation Rapid level drop HO RX_Level_Drop HO Allowed (NO) Explanation: Whether to use the emergency handover algorithm in case the receive level of the MSs drops rapidly.

7. Emergency Handover parameter and explanation BQ handover BQ HO Allowed (YES) BQ HO Margin (69)

8. Load Handover support Load Handover Support (NO) Load Handover Support (Don’t consider Rxlevel & Rxqual )

9. Normal Handover parameter and explanation Edge HO ( HO DCS GSM ) Edge HO Allowed (YES) Edge HO UL/DL RX_LEV Threshold (19,25) Handover Algorithm I Edge HO Watch/Valid time (3,2)

10. Normal Handover parameter and explanation Level HO ( HO GSM DCS ) 1,Inter-layer HO Threshold (31) 2, Inter-layer HO hysteresis (2) 3, Adjacent Cell Inter-layer HO Hysteresis

11. Normal Handover parameter and explanation PBGT HO ( Same level ) 1, PBGT HO Allowed(YES) 2, PBGT HO Threshold (68) 3, PBGT Valid/Watch Time (4,6)

12. Normal Handover parameter and explanation MS Fast-moving HO MS fast moving HO Allowed (NO) MS Fast-moving Time Threshold

13. Normal Handover parameter and explanation AMR F-H HO 1, AMR HO Allowed(Not enabled)

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