WCDMA KPI Classification

The KPI can be divided into following classes, and the counters related to the KPI should be well defined in the Performance Monitoring system of the RNC.


Coverage KPIs

• UL Interference Cell Ratio
• Soft Handover Ratio

Accessibility KPIs

• IU Paging Success Ratio
• Radio Access Success Ratio
• RRC Setup Success Ratio (other)
• RRC Setup Success Ratio (service)
• AMR RAB Setup Success Ratio
• VP RAB Setup Success Ratio
• CS RAB Setup Success Ratio
• PS RAB Setup Success Ratio
• HSDPA RAB Setup Success Ratio
• HSUPA RAB Setup Success Ratio

Retainability KPIs

• CS Service Drop Ratio
• AMR Call Drop Ratio
• VP Call Drop Ratio
• AMR Traffic Drop Ratio
• VP Traffic Drop Ratio
• PS Service Drop Ratio
• HSDPA Service Drop Ratio
•  HSUPA Service Drop Ratio

Mobility KPIs

• Soft Handover Success Ratio
• Softer Handover Success Ratio
• HS-DSCH Service Cell Change Success Ratio with SHO (HSDPA to HSDPA)
• Channel Handover Success Ratio (HSDPA to DCH)
• Channel Handover Success Ratio (DCH to HSDPA)
• Intra-frequency Hard Handover Success Ratio
• Intra-frequency Hard Handover Success Ratio (HSDPA to HSDPA)
• Inter-frequency Hard Handover Success Ratio
• Inter-frequency Hard Handover Success Ratio (HSDPA to HSDPA)
• CS Inter-RAT Handover Success Ratio (WCDMA to GSM)
• PS Inter-RAT Handover Success Ratio (WCDMA to GPRS)
• PS Inter-RAT Handover Success Ratio (GPRS to WCDMA)
• HSDPA Inter-RAT Handover Success Ratio (WCDMA to GPRS)
• SRNC Relocation Success Ratio
• TRNC Relocation Success Ratio
• E-DCH Soft Handover Success Ratio
• E-DCH Service Cell Change Success Ratio with SHO (HSUPA to HSUPA)
• E-DCH Service Cell Change Success Ratio with Inter-HHO (HSUPA to HSUPA)
• E-DCH to DCH Handover Success Ratio (Intra Cell)
• DCH to E-DCH Handover Success Ratio (Intra Cell)
• E-DCH to DCH Handover Success Ratio (with Inter HHO)
• HSUPA Inter-RAT Handover Success Ratio (UTRAN to GPRS)

Service Integrity KPIs

• PS Service UL Average Throughput
• PS Service DL Average Throughput
• Service UL Average BLER
• DL RLC Average Retransmission Ratio
• HSDPA RLC Throughput
• HSUPA RLC Throughput

Availability KPIs

• Worst Cell Ratio
• IU Paging Congestion Ratio
• Admission Refused Ratio
• Congested Cell Ratio
• Unserviceable Cell Ratio
• Average CPU Load
• IUB Bandwidth Utilizing Ratio

Traffic KPIs

• CS Equivalent Erlang
• PS UL Throughput
• PS DL Throughput
• UL Traffic of Typical Radio Bearers
• DL Traffic of Typical Radio Bearers
• HSDPA Mean UE Number
• HSDPA RLC Traffic Volume
• HSUPA Mean UE Number
• HSUPA RLC Traffic Volume
• UL Traffic Volume of QoS Classes
• DL Traffic Volume of QoS Classes

Above KPIs are from Huawe.

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Generic CDMA Principles and Techniques

Generic CDMA Principles and Techniques pdf

Code Division Multiple Access (CDMA)
In this case, a radio channel supports a number of simultaneous users who are
separated only by digital coding of their signals, such that the coding of each user’s
signal is as different as possible to every other user’s code. Careful decoding at the
receiver can then separate users. An analogy can be drawn by considering a crowded
restaurant. If many diners are speaking simultaneously, the human ear can “tune” into
one voice by using the unique audio characteristics (“coding”) of the voice. This is
possible if no diner is speaking very loudly or softly, i.e. all are speaking with similar
volume. The listener’s decoding task is made even easier if the speaker of interest
uses a language (e.g. French) different from all others (e.g. English). This is equivalent
in CDMA to a user being given a code very different from all others. CDMA appear to
offer better spectral efficiency than FDM/TDMA – perhaps 4 or 5 times better. Other
benefits will discussed later.

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Understanding UMTS-Services and Applications

UMTS-Services and Applications pdf

Application Note.

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Understanding UMTS -The Need for UMTS

The Need for UMTS pdf

The latest move, to 3rd Generation, further advances digital systems with the particular aim of increasing the ability to use data applications on the move (i.e. mobile computing or the wireless office), and to enable “multimedia” services, which may mix voice, graphics, video, music and so on. In order to achieve this, a key change is in increasing the ability of mobile systems to transfer larger quantities of information much faster.

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UMTS/HSDPA Backhaul Bandwidth Dimensioning

UMTS/HSDPA Backhaul Bandwidth Dimensioning pdf

This paper presents a simulation-aided approach for the dimensioning of the ATM-based Iub
interface in UMTS/HSDPA networks. Besides considering different user applications, as well
as the peculiarities of the radio protocols above and within the backhaul transport
infrastructure to estimate Iub utilization, this paper also provides insights in to the HSDPA air
interface capacity given different data traffic and voice traffic scenarios for different UE
categories (e.g. UE Cat 12, 6, 8).

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UMTS WCDMA Technology

Background and Introduction to UMTS WCDMA Technology PDF

Contents
􀂄 Industry Survey, Update and Perspective
• Survey of competing technologies
• WCDMA releases and timeline
􀂄 WCDMA Principles
􀂄 Summary of Differences between WCDMA and CDMA2000
􀂄 WCDMA Channels
• Physical, Transport, Logical
􀂄 Timing Structure of WCDMA Channels
􀂄 Network Architecture
􀂄 Subscriber Equipment Architecture
􀂄 Power Control
􀂄 Basic Call Processing
􀂄 Handovers
• WCDMA Soft
• Hard Handover to GSM
􀂄 Base Station Performance

Source :Internet

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3G -UMTS Docs links-1

IP for 3G

http://www.4shared.com/file/84032900/94283407/IP_for_3G.html

3G UMTS Protocol Analysis

http://www.4shared.com/file/83902542/b2587cdd/Telco_-_Protocol_analysis_in_UMTS_Networks.html

3G-WCDMA Rdio planning doc

http://www.4shared.com/file/83901885/9ae49acf/Radio_network_plng_WCDMA_article.html

UMTS 3G Quick refrence

http://www.4shared.com/file/83901312/d9175bc4/UMTS3Gquickref.html

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Radio Resource Management for UMTS

radio-resource-management pdf

Source:Internet

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