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8/13/2019 1004 N1 Meeting
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2007 NSN CSI NWP RF - TWM Project
1 © Nokia Siemens Networks NSN TWM Project
10/04 N1 RF Meeting
NSN TWM Project
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2 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
• ISHO Successful Rate Degration
• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
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3 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Time Consumption for RRC Connection Request
• TWM default value for RRC Connection Request
– T300 = 2000ms – N300 = 3
• RRC Time = T300 * (N300+1) = 8 s
RR C
R e q u e s t
RR C
R e q u e s t
RR C
R e q u e s t
RR C
R e q u e s t
T300 Expire,
Start re-transmit (N300)
T300 Expire T300 Expire T300 Expire
RRC Connection Failure
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4 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Worst case for time consumption in RRC Connection Setup:
• TWM: 8s
• CHT: 3.6s
• FET: 12s
• VIBO: 10s
TWM CHT FET VIBO
T300 2000ms 1200ms 2000ms 2000ms
N300 3 2 5 4
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2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
• ISHO Successful Rate Degration
• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
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2007 NSN CSI NWP RF - TWM Project
ISHO Successful Rate Degration
• ISHO successful rate for RNC211/214/114 degraded afterRNC212/213 reparent on 9/11.
RNC212/213
Reparent
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2007 NSN CSI NWP RF - TWM Project
Root Cause
•Major cause is due to MSC reply relocation preparation failure and
stop the process of ISHO.• Care team is handling this case.
RNC212/213Reparent
Total amount reduce is due to rehometo RNC215&218
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8 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
• ISHO Successful Rate Degration
• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
8/13/2019 1004 N1 Meeting
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9 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Abnormal Cell
• 106CFWC3 and 106M4WC1 had suddenly increasing in RRC Conn Acc Fail.
• BTS team is handling both of them.
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10 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Abnormal Cell 11423WC 湖華
• Suddenly increasing in RRC Conn set due to BTS and Trans.
• Alarm showed high BER due to transmission problem.
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11 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
• ISHO Successful Rate Degration
• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
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12 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Cluster Tuning Schedule
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13 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
• ISHO Successful Rate Degration
• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
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14 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Network Activity
• Week41:
–NodeB rehoming for RNC217
• NSN/GTC will revise new site parameter due to ADJS rehoming. Avoiding wrong configuration, pls remove attachment in BI first anduse the updated one for integration.
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15 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Topics
• Time Consumption for RRC Connection Request
•
ISHO Successful Rate Degration• Abnormal Cells
• Cluster Tuning Schedule
• Network Activity
• ACR Tracking
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16 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
CR Tracking List
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17 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
AR Tracking List
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18 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
AR Tracking List
AR T ki Li t
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19 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
AR Tracking List
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20 © Nokia Siemens Networks NSN TWM Project
2007 NSN CSI NWP RF - TWM Project
Question ?