GSM KPI Analysis & Optimizaton

GSM KPI Analysis and Optimization


Key Performance Indicators (KPI) are a measure of successful network performance and its quality.
KPIs can be used for the following tasks:

• To monitor and optimize the radio network performance in order to provide better subscriber quality or to achieve better use of installed network resources

• To detect unacceptable performance related issues in the cellular network immediately. This will enable the operator to take rapid actions in order to preserve the quality of the existing network services.

• To Provide radio frequency planners with the detailed information. This will help them configure the network parameters for optimum use.

 Typically KPI can be categorized into following subcategories:

• Accessibility
• Retainability
• Integrity
• Availability
• Mobility



Comments

Post a Comment

Popular posts from this blog

TBF Success Rate

TBF Success Rate  TBF Success rate indicate Success percentage of Data call GPRS in GSM. Temporary Block Flow (TBF) is a physical connection used by the two Radio Resource entities to support the unidirectional transfer of PDUs on packet data physical channels. The TBF is allocated radio resource on one or more PDCHs and comprises a number of RLC/MAC blocks carrying one or more LLC PDU. TBF Success Rate is when during a data session, TBFs are successfully established on UL and DL . PDASR (Packet Data access Success Rate) also called TBF Success rate indicate Success percentage of Data call GPRS in GSM. PROCESS for Optimization : Check for PDCH Blocking or TBF Blocking due to No channel PDCH Blocking indicate insufficient data channel for EDGE/GPRS services.For PDCH Blocking you can check also by counter TBF Blocking due to no channel . If you found TBF Blocking then you need to add Channel allocation for Data or you can add static PDCH channel and finally you nee...
Read more

Handover Success Rate (HOSR)

In cellular telecommunications , the terms handover or handoff refer to the process of transferring an ongoing call or data session from one channel connected to the core network to another channel. The HOSR is the ratio of the number of successful handovers to the number of handover requests. The major purpose of handover is to guarantee call continuity, improve speech quality, reduce cross interference in the network, and thus provide better services for mobile station (MS) subscribers. Types of GSM handover Within the GSM system there are four types of handover that can be performed for GSM only systems: Intra-BTS handover:   This form of GSM handover occurs if it is required to change the frequency or slot being used by a mobile because of interference, or other reasons. In this form of GSM handover, the mobile remains attached to the same base station transceiver, but change the channel or slot. Inter-BTS Intra BSC handover:   This ...
Read more

SD Block & SD Drop

        SD Block   SDCCH channel is a dedicated channel which is using for LAC updation, Call Setup, SMS in Ideal mode. It works in UL & DL SD Blocking means that you are not getting SD resource for the call origination. When MS connects with Network then RACH and AGCH are provided. After AGCH, SDCCH is provided but if SDCCH is not provided at this time due to some problem or due to unavailable of SD by BSC. Reason for SD Blocking: ·          LAC Boundary ·          High Volume of SMS ·          SD utilization is high ·          Time Slot faulty ·          Wrong SD Dimension ·          Hardware Is...
Read more