Download UMTS Training - Part VI - UMTS Planning With Atoll...
Description
Part VI UMTS Planning with Atoll
Contents Planning workflow BH trial configuration UMTS project in Atoll Propagation models Equipment / Antennas Sites / Transmitters / Cells Prediction - Coverage by transmitter / Pilot signal level Neighbours / Scrambling codes automatic allocation BH trial services definition Atoll UMTS service parameters Monte-Carlo simulation Predictions - Ec/Io; Eb/No; Handoff status; Pilot pollution; SC Interference Predictions - HSDPA / HSUPA Point analysis tool ACP Tool - Capesso
Planning Workflow
BH Trial Configuration • Planning only for “Contorno” region • Band = 2.1GHz • Bandwidth = 5MHz (1 Channel) • Orthogonality Factor: 0.6 • Antenna = 18dBi / 65º Beamwidth / 4º Tilt (+ variable additional electrical downtilt) • Height: 30m • 35 three-sectored sites (0° 120° 240º) • Cable Loss: 2dB • Node B Noise Figure: 2dB • Node B Maximum Output Power: 43dBm • Pilot Power = 33dBm • SCH Power = 21dBm • Other CCH Power = 30dBm • Active Set Threshold: 5dB
Starting a Project Menu File Æ New / Project templates (UMTS HSPA)
Projection / Units • Define projection (e.g. WGS 84 / UTM zone 23S) • Define display coordinate system (e.g. Long/Lat - WGS 84) - depends on the map • Define power and length units (e.g. dBi, dBd / W, dBm / m, km) Menu Tools Æ Options
Import Geographic Data Files • Import clutter classes, DTM (Digital Terrain Model), vector data, etc Menu File Æ Import
Import Geographic Data Files • Clutter classes:
Import Geographic Data Files • Clutter classes:
Import Geographic Data Files • Heights (DTM = Digital Terrain Model):
Import Geographic Data Files • Heights (DTM = Digital Terrain Model):
Import Geographic Data Files • Vectors:
Import Geographic Data Files • Vectors:
Clutter Classes + DTM + Vectors
Focus Zone Polygon Explorer window Æ Geo tab Æ Zones Æ Focus Zone Æ Draw (or Import)
Computation Zone Polygon Explorer window Æ Geo tab Æ Zones Æ Computation Zone Æ Draw (or Import)
BH Trial Services Definition • UE Antenna Gain: 0dBi • UE Height: 1.5m • UE Noise Figure: 7dB • Body Loss = 3dB (for voice service only) • Active Set Size = 3 • Ec/Io min = -14dB Required Eb/No
RAB
UL 5dB 3dB
Voice 12.2kbps Video 64kbps
RAB Voice 12.2kbps Video 64kbps
UL DL UL DL
DL 7dB 5dB
Data rate (kbps)
Maximum Power (dBm)
Required CE
12.2 12.2 64 64
21 30 21 30
1 1 4 4
R99 Radio Bearers Explorer window Æ Data tab Æ UMTS Parameters Æ Services Æ R99 Radio Bearers
Services Explorer window Æ Data tab Æ UMTS Parameters Æ Services
Services Explorer window Æ Data tab Æ UMTS Parameters Æ Services
Mobility Types Explorer window Æ Data tab Æ UMTS Parameters Æ Mobility Types
Eb/No per R99 Radio Bearer Explorer window Æ Data tab Æ UMTS Parameters Æ Services Æ R99 Radio Bearers Æ (any radio bearer) Æ Record Properties
Terminals Explorer window Æ Data tab Æ UMTS Parameters Æ Terminals Voice / Video
Terminals Explorer window Æ Data tab Æ UMTS Parameters Æ Terminals
HSDPA
Terminals Explorer window Æ Data tab Æ UMTS Parameters Æ Terminals
HSUPA
User Profiles Explorer window Æ Data tab Æ UMTS Parameters Æ User Profiles
Environments Explorer window Æ Data tab Æ UMTS Parameters Æ Environments
Traffic Map Explorer window Æ Geo tab Æ Traffic Æ New Map Æ Create Map (Map Bases On Environments - Raster)
UMTS Simulations Explorer window Æ Data tab Æ UMTS Simulations Æ New
UMTS Simulations (Monte-Carlo)
UMTS Simulations (Monte-Carlo) R99 Portion: • 1) Best server determination: The best server is determined for each mobile using Ec/Io criterion. The mobile is rejected if the Ec/Io condition is not satisfied or the uplink load factor is higher than the specified limit Æ (Ec/Io pilot < Ec/Io min pilot; Admission rejected) • 2) Active set determination: The active set is determined for each mobile. • 3) Uplink power control: The mobile transmit power is calculated. It corresponds to the power required to satisfy the uplink Eb/Nt requirement. The mobile is rejected if the calculated required transmit power is higher than the maximum mobile transmit power Æ (Pmob >Pmob max) • 4) Downlink power control: The transmitter traffic channel power is calculated. It corresponds to the power required to satisfy the downlink Eb/Nt requirement. The mobile is rejected if the calculated traffic channel power is higher than the maximum traffic channel power allowed Æ (Ptch > Ptch max) • 5) Uplink and downlink interference update: The uplink load factor and total downlink transmit power are updated with these results. • 6) Congestion and radio resource control: Mobiles are rejected if any of the following situations occur: - Uplink load factor higher than the specified limit Æ (UL load saturation) - Total downlink power higher than the maximum total downlink power Æ (DL load saturation) - Number of OVSF codes insufficient Æ (Code saturation) - Number of channel elements available insufficient Æ (Channel element saturation) • 7) Convergence study: The previous iterations are repeated until the simulation converges, i.e. either the maximum number of iterations is reached or both, uplink and downlink, criteria are verified.
Users Distribution
UMTS Simulation Results Explorer window Æ Data tab Æ UMTS Simulations Æ (any simulation) Æ Properties
UMTS Simulation Results
Average Simulation Explorer window Æ Data tab Æ UMTS Simulations Æ (any simulation) Æ Average Simulation
Average Simulation Sites - Max No. of DL and UL CEs - No. of DL and UL CEs Used - No. of DL and UL CEs Due to SHO Overhead - Carrier Selection - Downlink and Uplink Overhead CEs/Cell - AS Restricted to Neighbours - Rake Factor - MUD Factor - Compressed Mode - Instantaneous HSDPA Rate (kbps) - Instantaneous HSDPA MAC Throughput (kbps) - HSUPA Rate (kbps) - DL and UL Throughput for Each Service
Average Simulation Cells - Max Power (dBm) - Pilot Power (dBm) - SCH power (dBm) - Other CCH power (dBm) - Available HSDPA Power (dBm) - AS Threshold (dB) - Gain (dBi) - Reception Loss (dB) - Transmission Loss (dB) - BTS Noise Figure (dB) - Total Transmitted R99 Power (dBm) - Total Transmitted Power (dBm) - UL Total Noise (dBm) - Max UL Load Factor (%) - Max DL Load (% Pmax) - UL Load Factor (%) - UL Load Factor due to HSUPA (%) - DL Load Factor (%) - UL and DL Noise Rise (dB) - DL R99 Load (% Pmax) - Reuse Factor (UL) - Reuse Efficiency Factor (UL)
- Number of UL and DL Radio Links - Connection Success Rate (%) - HSDPA Application Throughput (kbps) - Min. HSDPA RLC Peak Rate (kbps) - Max HSDPA RLC Peak Rate (kbps) - Avg. Instantaneous HSDPA Throughput (kbps) - Instantaneous HSDPA Rate (kbps) - Instantaneous HSDPA MAC Throughput (kbps) - No. of Simultaneous HSDPA Users - No. of HSDPA Users - No. of HSUPA Users - HSUPA Application Throughput (kbps) - HSUPA UL Load Factor (%) - No. of Codes (512 Bits) - The types of handover as a percentage - R99 UL and DL Throughput (kbps) - R99 UL and DL Throughput Without HO (kbps) - Min TCH Pwr (dBm) - Max TCH Pwr (dBm) - Avg TCH Pwr - Rejected users
Trial Simulation Results Request Service Voice 12.2kbps Video 64kbps HSDPA HSUPA
Prediction - Ec/Io - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Pilot Reception Analysis (Ec/Io)
Prediction - Eb/No (DL) - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Service Area (Eb/Nt) Downlink
Prediction - Eb/No (UL) - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Service Area (Eb/Nt) Uplink
Prediction - Effective Service Area - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Effective Service Area
Prediction - Handoff Status - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Handoff Status Handoff Status - Voice
% area
No Handoff Softer Soft Softer-Softer Softer-Soft Soft-Soft
67.8 5.2 18.4 0 4.2 4.2
Prediction - Pilot Pollution - Voice Explorer window Æ Data tab Æ Predictions Æ New Æ Pilot Pollution
Prediction - SC Interference Zones Explorer window Æ Data tab Æ Predictions Æ New Æ Scrambling Codes Interference Zones
Prediction - HSDPA App Throughput Explorer window Æ Data tab Æ Predictions Æ New Æ HSDPA Coverage
Prediction - HSUPA App Throughput Explorer window Æ Data tab Æ Predictions Æ New Æ HSUPA Coverage
Point Analysis Tool • Profile Tab
Point Analysis Tool • Reception Tab
Point Analysis Tool • AS Analysis
Transmitters of the mobile active set (grey zone)65
Lower limit of the active set (best pilot quality - Active set threshold)
Best server threshold to be part of the active set (depending on the mobility type)
Pilot and service availability in UL and DL
Summary - Building a UMTS Project • 1) Define projection / import geographic data files • 2) Network design: sites / transmitters / cells • 3) Calibrate propagation model using CW measurements • 4) Pilot studies based only on signal reception • 5) Neighbour / scrambling codes allocation • 6) Traffic description (activity probabilities), traffic map design • 7) Simulations - realistic user distribution generation • 8) Coverage and point prediction studies
Automatic Cell Planning Tool - Capesso Site Location •• Greenfield Greenfield site site deployment deployment for for new new areas areas •• Vector Vector ++ area area deployment deployment
Site Selection •• Site Site selection selection ++ RF RF configuration configuration for for UMTS UMTS overlay overlay on on GSM GSM
Greenfield: Site location for all radio technologies Best site deployment: number of sites, location, az, tilt, etc. Very large areas in a few minutes (>350km22 in less than 10min) Both area deployment and vector deployment supported Full verification of results and further processing in ATOLL
Capesso - Greenfield
Capesso - Greenfield
Capesso - Greenfield Manual Planning (35 Sites)
Capesso Greenfield (36 Sites)
36 site(s) have been created in 76.672 sec (2.130 sec/site). 976 location(s) have been analyzed in 76.672 sec (0.078557 sec/loc).
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