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By: Mohammad Haris Khan RF Optimization Engineer Mobilink – South Nov 20 ’2009 R F Optimization & Planning
<ul><li>What is RF  Planning ? </li></ul><ul><ul><li>Coverage and Capacity. </li></ul></ul><ul><ul><li>Calibration of Plan...
RF Planning <ul><li>GSM Bands: </li></ul><ul><li>GSM – 900  (P-GSM) </li></ul><ul><ul><li>890 – 915 MHz (Uplink) </li></ul...
RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 4 Types of Sites: <ul><li>Single Site </li></ul><ul><ul><li>GS...
RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 5 Coverage and Capacity: <ul><li>Coverage: </li></ul><ul><ul><...
RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 6 Traffic Handling: <ul><li>Speech  Codec's  can be used to av...
RF Optimization Mohammad Haris Khan Mobilink – RF Optimization 7 Network Analysis <ul><li>Tools   are used to extract raw ...
RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 8 Traffic Balancing <ul><li>There should be a  Preferred B...
RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 9 Congestion and its Remedy <ul><li>Congestion usually occ...
RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 10 Major KPI’s <ul><li>CSSR </li></ul><ul><li>DCR </li></u...
Queries Please
R F Optimization & Planning Presented To: Usman Institute of Technology Presented By: Mohammad Haris Khan Mobilink – RF Op...
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Presentation Rf Optimization And Planning

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A Zumbeel Knowledge Session happened at Usman University...
Presenter:
Mohammad Haris Khan
RF Optimization Engineer
Mobilink – South

Published in: Technology, Business

Presentation Rf Optimization And Planning

  1. 1. By: Mohammad Haris Khan RF Optimization Engineer Mobilink – South Nov 20 ’2009 R F Optimization & Planning
  2. 2. <ul><li>What is RF Planning ? </li></ul><ul><ul><li>Coverage and Capacity. </li></ul></ul><ul><ul><li>Calibration of Planning Tools. </li></ul></ul><ul><ul><li>Frequency Planning. </li></ul></ul><ul><li>What is RF Optimization? </li></ul><ul><ul><li>Network Analysis. </li></ul></ul><ul><ul><li>Parameter Tuning. </li></ul></ul><ul><ul><li>Maintain and Improve KPI’s. </li></ul></ul>Mohammad Haris Khan Mobilink – RF Optimization 2
  3. 3. RF Planning <ul><li>GSM Bands: </li></ul><ul><li>GSM – 900 (P-GSM) </li></ul><ul><ul><li>890 – 915 MHz (Uplink) </li></ul></ul><ul><ul><li>935 – 960 MHz (Downlink) </li></ul></ul><ul><ul><li>124 : Number of Available ARFCNs. </li></ul></ul><ul><li>GSM – 1800 (DCS) </li></ul><ul><ul><li>1710 – 1785 MHz (Uplink) </li></ul></ul><ul><ul><li>1805 – 1880 MHz (Downlink) </li></ul></ul><ul><ul><li>374 : Number of Available ARFCNs. </li></ul></ul>Mohammad Haris Khan Mobilink – RF Optimization 3
  4. 4. RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 4 Types of Sites: <ul><li>Single Site </li></ul><ul><ul><li>GSM – 900 / GSM – 1800 (DCS) </li></ul></ul><ul><ul><li>Single BCCH </li></ul></ul><ul><li>Dual Band / BCCH Site </li></ul><ul><ul><li>GSM – 900 + GSM – 1800 </li></ul></ul><ul><ul><li>Dual BCCH </li></ul></ul><ul><li>Concentric Site </li></ul><ul><ul><li>GSM – 900 & GSM – 1800 </li></ul></ul><ul><ul><li>Single BCCH </li></ul></ul>
  5. 5. RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 5 Coverage and Capacity: <ul><li>Coverage: </li></ul><ul><ul><li>Depends upon the area (e.g. Urban, Rural, Hilly, Highway) </li></ul></ul><ul><ul><li>Frequency is inversely proportional to the Wave Length </li></ul></ul><ul><ul><li>Which type of site should be proposed for highway (Considering </li></ul></ul><ul><ul><li>the long area but very low traffic) ??? </li></ul></ul><ul><li>Capacity: </li></ul><ul><ul><li>Always comes with coverage area </li></ul></ul><ul><ul><li>Capacity must be known properly before deciding for Coverage </li></ul></ul><ul><ul><li>No. of radios must be finalized as per Capacity of the area </li></ul></ul>
  6. 6. RF Planning… Mohammad Haris Khan Mobilink – RF Optimization 6 Traffic Handling: <ul><li>Speech Codec's can be used to avoid initial </li></ul><ul><li>congestion </li></ul><ul><li>Expansion is the final Solution </li></ul>
  7. 7. RF Optimization Mohammad Haris Khan Mobilink – RF Optimization 7 Network Analysis <ul><li>Tools are used to extract raw counters in </li></ul><ul><li>statistical form (e.g.: Making Pivot Charts) to analyze the KPI’s. </li></ul><ul><li>Log Files analysis using TEMS (RF Tool) </li></ul><ul><ul><li>TEMS is an Ericsson propriety </li></ul></ul><ul><ul><li>Used for Air Interface Analysis </li></ul></ul><ul><ul><li>Provide information of all three functional layers of GSM </li></ul></ul><ul><li>Parameter Tuning to improve KPI’s as mentioned: </li></ul><ul><ul><li>CSSR ( C all S etup S uccess R ate) </li></ul></ul><ul><ul><li>DCR ( D rop C all R ate) </li></ul></ul><ul><ul><li>HoSR ( H and o ver S uccess R ate) </li></ul></ul>
  8. 8. RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 8 Traffic Balancing <ul><li>There should be a Preferred Band </li></ul><ul><ul><li>Preferred Band is usually DCS (GSM – 1800) </li></ul></ul><ul><ul><li>DCS is comparatively cleaner (due to less no. of losses) </li></ul></ul><ul><ul><li>No Massive Overlapping as in GSM – 900 Band </li></ul></ul><ul><li>Another appropriate method for traffic balancing is Handover </li></ul><ul><ul><li>Handovers can be InterCell or IntraCell </li></ul></ul><ul><ul><li>Different Algo’s are defined for both types of HO’s </li></ul></ul><ul><li>In Idle Mode , C2 is the method to distribute traffic </li></ul><ul><ul><li>Forces the MS to camp over neighboring cell </li></ul></ul><ul><ul><li>On the basis of perceived level of MS and CRO </li></ul></ul>
  9. 9. RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 9 Congestion and its Remedy <ul><li>Congestion usually occurs when there are less no. of channels available </li></ul><ul><li>than offered traffic (in Erlang) </li></ul><ul><li>How to Avoid Congestion ??? </li></ul><ul><ul><li>General Capture HO ( Level Dependent ) </li></ul></ul><ul><ul><li>Traffic HO ( Level and Availability dependent ) </li></ul></ul><ul><ul><li>Directed Retry HO ( SD HO ) </li></ul></ul><ul><li>Another way to relief Congestion is QUEING </li></ul><ul><li>Final possible solution is Expansion </li></ul>
  10. 10. RF Optimization… Mohammad Haris Khan Mobilink – RF Optimization 10 Major KPI’s <ul><li>CSSR </li></ul><ul><li>DCR </li></ul><ul><li>HoSR </li></ul><ul><li>Inc HoSR </li></ul><ul><li>IASR </li></ul><ul><li>Call Setup Blocking </li></ul><ul><li>SD Blocking </li></ul><ul><li>and many more….!!! </li></ul>
  11. 11. Queries Please
  12. 12. R F Optimization & Planning Presented To: Usman Institute of Technology Presented By: Mohammad Haris Khan Mobilink – RF Optimization Dated: Friday, Nov 20 ’2009 Thank You!

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