RAN Traces Optimization & GL (1)

Gladiator Innovations RAN Trace Optimization

April 2014

GLADIATOR INNOVATIONS PROPRIETARY, 2014

Network Op<miza<on RCA

Gladiator Product Line

G-‐Net

Network Monitoring

RAN Trace Op<miza<on

Go No-‐Go Worst Offenders

Network Troubleshoo<ng Mobile Analy<cs

Workflow automa<on Large data processing

Opex reduc<on

RAN Drive test Op<miza<on

Site Verifica<on Cluster Acceptance Spectrum Clear, etc…

XCAL, TEMS, JDSU, Nemo, SwissQual, ZK, etc…

PM -‐ Ericsson, Huawei, Nokia, etc…

Trace -‐ Ericsson 3G, 4G * Huawei 3G, 4G*

All the above

Problem addressed Vendor supported Product Line Solu5on

* Under development

Network Configura<on Audit

Neighbor plan, Channel/Code Plan,

SW License vs HW se_ngs, etc…

CM -‐ Ericsson, Huawei, Nokia, etc…

Meet SLA target Improve User Experience

CM, PM, FM, Trace Ericsson, Huawei,

Nokia, etc…

Network Operator Benchmarking

Iden<fica<on of areas to minimize user churn,

Marke<ng Priori<za<on

XCAL, TEMS, JDSU, Nemo, SwissQual, ZK, etc…


Product Line and Associated Features

1. Coverage and neighbor analysis 2. KPI troubleshoo<ng (Signaling performance analysis) 3. VIP Performance (User and traffic analysis) 4. Enterprise trace post-‐processing with customized sta<c reports* 5. Enterprise drill down inves<ga<on using trace data (IDC_T)*

Analyses & Reports

RAN Trace Op<miza<on

* Under Development


RAN Trace Op5miza5on -‐ Outline

Coverage and neighbor analysis Coverage Pollu<on Over-‐shooters Neighbor addi<on

Signaling Performance Accessibility Admission control Call Setup Channel Switching RRC Analysis RAB Analysis Retainability

User Performance KPI impact on VIP users Phone model Traffic analysis for network expansion planning


Measurement Report Analysis Co

verage

The distribu<on of measurements per carrier provide an overview of the subscriber radio environment. Coverage and Pollu<on assessment helps to priori<ze areas of coverage op<miza<on.

Distribution of measurement by Quadrant

1st.Carrier Sample # Sample % Q1 46874 10% Q2 38904 9% Q3 253702 56% Q4 114676 25% Total 454156 100%

2nd Carrier Sample # Sample % Q1 22489 7% Q2 81455 24% Q3 223309 65% Q4 16394 5% Total 343647 100%


Measurement Report Analysis

Findings: High overlap of coverage can be observed from High event 1a and Small event 1b. Recommendation: •  To identify over

shooters to avoid coverage overlap

•  To avoid waste of bandwidth utilization in SHO mode to reduce SHO window.

Coverage


Missing Neighbor Detection

Neighbor Analysis

Findings: Check specific vendor messages and MR messages to identify possible missing neighbors. Critical missing neighbor indicators: -  EcIo Offset > 6 dB ( Detected Cell –

Source Cell) -  Missing Neighbor Occurrence > 150 -  Over-shooter – if distance between

detected cell and source cell is greater than 5 tiers

Recommendations: •  Missing relations to be added •  Over-shooters needing additional

coverage assessment for optimization

Neighbo

r


Signaling Performance

•  Perform analysis on all indicators and events that impact the network performance regarding RAN Signaling –  Radio Link Establishment/Status –  Radio Bearer Establishment/Status –  etc…

•  Inves<gate using 3GPP signaling informa<on and vendor specific informa<on. •  Iden<fy the root case reasons for the failed events and signaling overload.

–  Accessibility –  Admission control –  Call Setup –  Channel Switching –  RRC Analysis –  RAB Analysis –  Retainability

•  The following slides give examples of signaling analysis for 1 RNC at peak hour

Signalling


RAN Trace Op5miza5on for VIP

Iden<fy accessibility, retainability, and throughput experiences for VIP users.

KPI impact on VIP users

Phone Model

Network expansion planning

VIP User


Top 10 users impacted by Drop call

•  Identifies Cell IDs where the Top 10 Users are having the most dropped calls

•  Associates device

model with VIP user list

List of Top 10 users impacted by Drop call IMSI Count IMEI Phone Model Phone Manufacturer

724100501137885 8 724100801334672 7 3557990534234700 724100700582900 5 3571230465736820 BlackBerry 9300 RIM 724100301115368 5 3561800444975100 Galaxy 3 / Galaxy Samsung 724101703122528 5 724101704010390 5 3530020502608700 GT-‐P3100 Samsung 724101904515247 5 724102000815731 5 724102101194225 5 3571230469532220 BlackBerry 9300 RIM 724102103426240 5

Cell ID Count 43963 10 27966 7 44491 6 32126 5 27348 4 50487 4 51737 4 32971 4 36524 2 32285 2 22285 1 28809 1 29428 1 29549 1 37345 1 39425 1 40484 1

Number of drop per cellid for the Top 10 impacted users

VIP User


Phone Model General distribu<on of Phone Manufacturer (Top ones) and Phone Model (Top ones). Correla<on of Phone model with Retainability KPI.

Full device list distribution

VIP User


Network expansion Traffic heat map for Carrier 1st carrier - Density Map (erlang/Km2)

•  Allows the engineer to understand critical coverage and traffic areas that will be targeted for future network expansion.

VIP User

Documents

RAN Traces Optimization & GL (1)