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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

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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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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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2007 NSN CSI NWP RF - TWM Project

AR Tracking List

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2007 NSN CSI NWP RF - TWM Project

AR Tracking List

AR T ki Li t

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2007 NSN CSI NWP RF - TWM Project

AR Tracking List

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Question ?