ios based network optimization
DESCRIPTION
IOS Based Network OptimizationTRANSCRIPT
IOS BasedIOS BasedNetwork OptimizationNetwork Optimization
by
Srikanth RamachandranGSM Core Group - Dubai
by
Srikanth RamachandranGSM Core Group - Dubai
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
RF OptimizationRF OptimizationUsing IOSUsing IOS
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
Motorola Confidential ProprietaryMotorola Confidential Proprietary 33 May 11, 2001May 11, 2001
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
RF Optimization
Inputs• Key Metrics
– Uplink RxQual– Downlink RxQual– Timing Advance– Uplink RxLev– Downlink RxLev– MS TxPwr– BTS TxPwr– Path Balance
• MRs per Carrier• 1-D and 2-D distributions• Neighbor Adds and Deletes• C/I Matrix
Motorola Confidential ProprietaryMotorola Confidential Proprietary 44 May 11, 2001May 11, 2001
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
RF Optimization
• Uplink Qual– Frequency Plan Issues– Check IOI– BCCH/Non-BCCH– If hopping and poor Non-BCCHs – Check reuse
• Downlink Qual– Tx Recalibration Required?
Motorola Confidential ProprietaryMotorola Confidential Proprietary 55 May 11, 2001May 11, 2001
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
RF Optimization
• 7x3 BCCH plan• Drive Test – Notice Interference• Non-BCCH – Set_full_power and Check Intf
• Optimization is Reuse dependent• Restructure Antenna Height, Bore, Tilt etc. based on the closest
reuse
• What happens when Reuse plan Changes from 7x3 to 6x3
Motorola Confidential ProprietaryMotorola Confidential Proprietary 66 May 11, 2001May 11, 2001
EMNSDIOS-Academy Turkey
EMNSDIOS-Academy Turkey
7 SITE REPEAT PATTERN7 SITE REPEAT PATTERN
F1
F2F3
R
D
ReuseDistance
C1
C2C3
E1
E2E3
D1
D2D3
G1
G2G3
A1
A2A3
B1
B2B3
F1
F2F3
Reuse
Cell Radius
Sector Transmit7 Cell Reuse RatioD/R = 4.58
Sector Transmit7 Cell Reuse RatioD/R = 4.58
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