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…  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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%  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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  

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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    

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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    

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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    

GLADIATOR  INNOVATIONS  PROPRIETARY,  2014  

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