GSM BSS Network KPI (SDCCH Call Drop Rate) Optimization Manual

**koepret** · 2011-06-14, 01:30 AM

GSM BSS Network KPI (SDCCH Call Drop Rate) Optimization Manual

1 Overview of SDCCH Call Drop Rate
1.1 Definition
1.2 Recommended Formula
1.3 Signaling Procedure and Measurement Points
2 Factors That Affect SDCCH Call Drop Rate
2.1 Hardware Failure
2.2 Transmission
2.3 Version Upgrade
2.4 Parameter Setting
2.5 Intra-Network and Inter-Network Interference
2.6 Coverage Problem
2.7 Antenna System
2.8 Imbalance Between Uplink and Downlink
2.9 Repeater
3 Analysis of and Solutions to High SDCCH Call Drop Rate
3.1 Analysis Process
3.2 Solutions to High SDCCH Call Drop Rate
3.2.1 Checking the Hardware
3.2.2 Checking the Transmission
3.2.3 Checking the BSC and BTS Version Upgrade
3.2.4 Checking the Parameter Settings
3.2.5 Checking the Interference
3.2.6 Checking the Coverage, Antenna System, and Balance Between Uplink and Downlink
3.2.7 Checking the Repeaters
4 Test Method
5 Remarks About the Signaling Analysis of the SDCCH Call Drop Rate
6 Cases for SDCCH Call Drop Rate Optimization
6.1 Case 1: SDCCH Call Drop in a Synchronous Network
6.2 Case 2: Call Drop Due to Imbalance Between Uplink and Downlink
6.3 Case 3: Call Drop Due to Antenna System Problem
6.4 Case 4: Call Drop Due to Transmission Problem
7 Feedback Form for SDCCH Call Drop Rate

enjoy it

Koepret
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