Key Performance Indicators KPI
Electronics and Telecommunications ICRAMET 2014
Batam – Indonesia | 7 – 8 May 2014
ICRAMET
109 Accessebility
Retainability Mobility
2.4.1Accessebility
Accessebility is the user s ability to obtain appropriate services with the services provided by the system. These
parameters were obtained from the existing counter value on the site and be a value calculated at the RNC parameters -
parameters that exist on accessability. The parameters included in the category of accessibility is the RRC SR Radio
Research Control Success Rate, CSSR CS Call Setup Success Rate Circuit switch, CSSR PS Call Setup Success
Rate Packet Switch, CSSR HSDPA Call Setup Success Rate High Speed Downlink Packet Access.
• Radio Control Research Success Rate RRC SR, this parameter can be used to evaluate the success of signaling that
the user is done . • Call Setup Success Rate Circuit Switch CSSR CS, this
parameter is used to evaluate the success of the user occupying channel for circuit-switched services until the user
terminates the conversation . • Call Setup Success Rate Packet Switch CSSR PS, this
parameter is used to evaluate the success of the user occupying channel for packet switch services to the user to
terminate the call . • Call Setup Success Rate High Speed Downlink Access
CSSR HSDPA, this parameter is used to evaluate the success of a user in a channel occupied by the HSDPA service
user to terminate a call on the services used . 2.4.2. Retainability
Retainability is the users ability to maintain the service after the service successfully obtained until the time of service
is terminated by the user.These parameters were obtained from the existing counter value on the site and be a value
calculated at the RNC parameters - parameters that exist in the retainability. The parameters included in the category of
retainability is Call Drop Rate CS CDR CS, CDR PS, CDR HSDPA
• Call Drop Rate Circuit Switch CS CDR, this parameter is used to evaluate the call failed on circuit switched services in
one RNC. • Call Drop Rate Packet Switch CDR PS, this parameter can
be used to evaluate the ratio of failed calls that exist in the service packet switch in the RNC.
• Call Drop Rate HSDPA CDRHSDPA, this parameter can be used to evaluate the ratio of calls that failed in service on
HSDPA packet switch in the RNC. 2.4.3 Mobilty
Mobility is a measurement of the degree of success obtained in spite of the current service users in motion. Some
of the parameters that fall into the category of mobility is the Soft Handover Success Rate SHO SR, Inter System
Handover Circuit Switch ISHO CS, Inter System Handover Packet Switch ISHO PS.
• SHO Success Rate, this KPI parameters can be used to evaluate the success rate of the Soft Handover in a different
site, including softer handover. • ISHO CS, this KPI parameters can be used to evaluate the
success rate of service handover circuit switch for 2 different technologies.
• ISHO PS, this KPI parameters can be used to evaluate the success rate of service handover packet switch for 2 different
technologies. 2.5. Congestion parameter analysis
Congestion is an excess capacity of a data communication path or a telecommunications service. This condition occurs
when packets are transmitted through the network approaches the packet handling capacity of the network. When had
indicated there is congestion, then this will affect the decline in the value of the parameter associated with the KPI
accessability capacity of a system. For the capacity of the system, can be seen by power, code, channel element, and
IUB. There are several parameters that will dianalasis congestion on UMTS networks, namely:
Power Congestion Power congestion is excess capacity allocation system that
occurs in the power supplied. Power congestion can be seen from both directions, ie for downlink and uplink. Power