WCDMA Radio Network Dimensioning Practice for Student (a)
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Transcript of WCDMA Radio Network Dimensioning Practice for Student (a)
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WCDMA Radio Network Dimensioning CasePlease finish the WCDMA Radio Network Planning in Dense Urban, and fill in the table in Page 3 (If system is in congestion state, use the second carrier to enhance capacity ):
1. Coverage Area (km2) : 822. Users forecast: 214200
3. Carrier 1: Uplink 1920~1925MHz , Downlink 2110~2115MHz, 3-sector sites Carrier 2: Uplink 1925~1930MHz , Downlink 2115~2120MHz, 3-sector sites4. Adopt 3GPP Release5 (HSDPA), Huawei RNC version: RAN10 (DL Signaling over HSDPA)5. Parameters: ParameterUplinkDownlink
Continuous coverage serviceCS 64kbpsCS 64kbps
Max power of TCH(dBm)2133
Cable loss Tx(dB)06
Cable loss Rx(dB)60
Antenna gain Tx(dBi)017
Antenna gain Rx(dBi)170
Noise figure(dB)1.67
Required Eb/No(dB)4.56.5
Cell design load0.50.90
Fast fading margin21
Interference margin(dB)37
SHO gain over fast fading(dB)1.5
Area coverage probability0.9
SHO gain over slow fading2
MorphologyPenetration Loss(dB)Standard Deviation Of Penetration LossStandard Deviation Of Outdoor Slow Fading
Dense Urban19610
Urban1358
Std. Dev. Of Indoor Slow FadingArea Coverage Probability Slow Fading Margin(dB)
11.790%9
95%13
1090%7
95%11
690%3
95%5
6. Propagation Model:
7. Maximum NodeB transmission power: 20W
8. Overhead of SHO (including softer handover): 40%
Overhead of softer handover: 10%
9. Retransmission of R99 PS: 5% Retransmission of HSDPA: 10%10. R99 PS traffic burst: 20%
HSDPA traffic burst: 25%
11. Activity factor of AMR12.2Kbps: 0.67
Activity factor of PS: 0.9
12. PS Channel Element utilization rate: 0.7
13. Power allocation for CCH in downlink: 20%
14. Average throughput requirement per user of HSDPA: 400kbps
15. Adjacent cell interference factor: 0.65
16. DL non-orthogonal factor: 0.5
17. Target DL cell load: 90%
Target UL cell load: 50%
18. Eb/No Requirement of Voice:
ServiceBLERChannel ModelUplink Eb/N0Downlink Eb/N0
AMR12.2k1.00%TU35.4 dB7.8 dB
RA1204.5 dB8.3 dB
19. Traffic Model:
Traffic ModelULDLGoSLoad Factors (UL)Load Factors (DL)
AMR12.2k(Erl)0.020.022%
CS64k(Erl)0.00150.00152%4.99%5.81%
PS64k(kbits)500800N/A4.77%4.11%
PS128k(kbits)100500N/A8.69%8.03%
PS384k(kbits)50200N/A21.35%19.59%
HSDPA (kbits)01674N/A
20. Specifications of the WBBP for NobeB 3900
Board Number of CellsUL CE NumberDL CE Number
WBBPa3128256
WBBPb136464
WBBPb23128128
WBBPb36256256
21.Reference
DL Coupling Loss (R99) = DL Path Loss + Cable Loss NodeB Antenna Gain UE Antenna Gain + Body Loss + Slow Fading Margin with SHO + Fast Fading Margin with SHO + Penetration loss Radio Network Dimensioning Output
Coverage Dimensioning:UplinkDownlink
Path Loss (dB)
Cell Radius (km)
Cell Radius (km)
NodeB coverage area (km^2)
Number of NodeB
Capacity Dimensioning:
UplinkDownlink
AveragePeakAveragePeak
AMR12.2k Load
CS64k Load
PS64k Load
PS128k Load
PS384k Load
HSDPA Load
Total Load (DCH+HSDPA)
Final Load for One Cell
Number of NodeB
Number of Carrier
CE Dimensioning:UplinkDownlink
AveragePeakAveragePeak
AMR12.2k CE
CS64k CE
PS64k CE
PS128k CE
PS384k CE
HSDPA A-DPCH CE
Total CE
Final CE for One Site
WBBP Board
EMBED Equation.3
2014-01-09HUAWEI ConfidentialPage2, Total4
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