wcdma

WCDMA RAN Cell Al i h KPI dAlgorithm KPI and Relative CountersRelative Counters

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Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.

ForewordForewordDuring the network monitoring, it is important to know how

do the algorithms work. Huawei provides several cell

algorithm counters to achieve this.

Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page2

ObjectivesObjectivesUpon completion of this course, you will be able to:

Describe counters related to load control algorithm

Describe counters related to DCCC algorithm


ContentsContents1. Counters Related to Load Control

2. Counters Related to DCCC



1.1 Counters Related to Load Reshuffling

1.2 Counters Related to Over Load Control


Load Reshuffling OverviewLoad Reshuffling OverviewTriggering of LDR

Power resources

Code resource

Iub resources

NodeB Credit resource


Load Reshuffling OverviewLoad Reshuffling OverviewLDR Actions:

Inter-frequency load handover

Code reshuffling

BE service rate reductionBE service rate reduction

AMR rate reduction

Inter-RAT load handover in the CS domainte oad a do e t e CS do a

Inter-RAT load handover in the PS domain

Real time service Iu QoS renegotiation

MBMS power reduction


DiscussionDiscussionHow to describe the following 2 system load states?


Duration in LDR StateDuration in LDR State Due to Power (Equivalent Number of Users) Congestion

VS LCC LDR Ti ULPVS.LCC.LDR.Time.ULPower

VS.LCC.LDR.Time.DLPower

Due to Downlink Code Resource Congestion g

VS.LCC.LDR.Time.DLCode

Due to Channel Element Resource Congestion

VS.LCC.LDR.Time.ULCE

VS.LCC.LDR.Time.DLCE

Due to Iub Transmission Resource CongestionDue to Iub Transmission Resource Congestion

VS.LCC.LDR.Time.ULIub

VS.LCC.LDR.Time.DLIub


Number in LDR StateNumber in LDR State Due to Power (Equivalent Number of Users) Congestion

VS LCC LDR N ULPVS.LCC.LDR.Num.ULPower

VS.LCC.LDR.Num.DLPower

Due to Code Resource CongestionDue to Code Resource Congestion VS.LCC.LDR.Num.DLCode

Due to Channel Element Resource Congestion VS.LCC.LDR.Num.ULCE

VS.LCC.LDR.Num.DLCE

Due to Iub Transmission Resource Congestion VS.LCC.LDR.Num.ULIub

VS LCC LDR Num DLIub


VS.LCC.LDR.Num.DLIub

Counters for Different LDR ActionsCounters for Different LDR ActionsNumber of UEs for BE Service Downsizing in Basic Congestion

VS.LCC.LDR.UL.BERateDown

VS.LCC.LDR.DL.BERateDown

Number of UEs with Uncontrollable Real-Time Service QoS Renegotiation in Basic CongestionBasic Congestion

VS.LCC.LDR.UL.QosReNego

VS.LCC.LDR.DL.QosReNego

Number of UEs for AMR Rate Decrease in Basic CongestionNumber of UEs for AMR Rate Decrease in Basic Congestion

VS.LCC.LDR.AMRRateUL

VS.LCC.LDR.AMRRateDL

Number of UEs Performing Successful Code Adjustment in DL Basic CongestionNumber of UEs Performing Successful Code Adjustment in DL Basic CongestionVS.LCC.LDR.CodeAdj.Succ

Number of MBMSs for Power Decrease in Basic Congestion

VS LCC LDR MbmsPowerDec


VS.LCC.LDR.MbmsPowerDec

Counters for Different LDR ActionsCounters for Different LDR ActionsNumber of UEs for Inter-Frequency Handovers in Basic Congestion

VS LCC LDR InterFreqVS.LCC.LDR.InterFreq

VS.LCC.LDR.HSDPA.InterFreq

Number of UEs for CS Domain Inter-RAT Handover in Basic Congestion VS.LCC.LDR.InterRATCS

Number of UEs for PS Domain Inter-RAT Handover in Basic CongestionVS LCC LDR InterRATPSVS.LCC.LDR.InterRATPS

VS.LCC.LDR.HSDPA.InterRATPS

Number of HSUPA Users During Inter-Frequency Load Handover in LDR St tState

VS.LCC.LDR.HSUPA.InterFreq

Number of HSUPA Users During Inter-RAT Handover in LDR State


gVS.LCC.LDR.HSUPA.InterRATPS


1.1 Counters Related to Load Reshuffling

1.2 Counters Related to Over Load Control


Over Load Control OverviewOver Load Control OverviewTriggering of Over Load

Power resource

Over Load Actions

TF Control

Switching BE Services to Common Channelg

Release of Some RABs


Overload Congestion CountersOverload Congestion Counters Duration of UL and DL Overload Congestions (Cell)

VS.LCC.OLC.UL.Time

VS.LCC.OLC.DL.Time

Number of UL and DL Overload Congestions (Cell)

VS.LCC.OLC.UL.Num

VS.LCC.OLC.DL.Num


Counters for Different OLC ActionsCounters for Different OLC ActionsNumber of UEs for BE Service TF Control in Overload Congestion

VS LCC OLC UL TFVS.LCC.OLC.UL.TF

VS.LCC.OLC.DL.TF

Number of UEs for BE Service Transfer Common Channel in Overload Congestion

VS.LCC.OLC.D2C

Number of UEs Released due to Overload Congestion gVS.LCC.OLC.UL.UserRel

VS.LCC.OLC.DL.UserRel

VS LCC OLC HSUPA U R lVS.LCC.OLC.HSUPA.UserRel

VS.LCC.OLC.HSDPA.UserRel



2. Counters Related to DCCC


Dynamic Channel Configuration Controly g

DCCC will perform the following actions:

Rate Reallocation Based on Traffic Volume

Rate Reallocation Based on Throughput

Rate Reallocation Based on Link Quality

UE State Transition Algorithm

UE State Transition From CELL_DCH to CELL_FACH

UE State Transition From CELL_FACH to CELL_PCH


ContentsContents2. Counters Related to DCCC

2.1 Counters Related to Rate Reallocation

2.2 Counters Related to UE State Transition


Downlink DCH DCCC Attempts (C ll)(Cell)

Number of Downlink DCH DCCC Attempts based on

different strategy (Cell)

VS.DCCC.AttDownsizing.DL.Thr : based on traffic volume

(RLC BO) or throughput

VS.DCCC.AttDownsizing.DL.Cong : based on Congestion

VS.DCCC.AttDownsizing.DL.Cov : based on Coverage

VS.DCCC.AttUpsizing.DL.Thr : based on traffic volume (RLC

BO) or throughput


Downlink DCH DCCC Success (C ll)(Cell)

Number of Successful Operations of DCCC on DCH in the

downlink according to different DCCC strategy(Cell)

VS.DCCC.SuccDownsizing.DL.Thr : based on traffic volume


VS.DCCC.SuccDownsizing.DL.Cong : based on Congestion

VS.DCCC.SuccDownsizing.DL.Cov : based on Coverage

VS.DCCC.SuccUpsizing.DL.Thr : based on traffic volume



Uplink DCH DCCC Attempts (Cell)Uplink DCH DCCC Attempts (Cell)Number of Uplink DCH DCCC Attempts based on different strategy (Cell)

VS.DCCC.AttDownsizing.UL.Thr : based on traffic volume (RLC BO) or thro ghp t(RLC BO) or throughput

VS.DCCC.AttDownsizing.UL.Cov : based on the coverage

VS DCCC AttDownsizing UL Cong : based on the resourceVS.DCCC.AttDownsizing.UL.Cong : based on the resource congestion

VS DCCC AttUpsizing UL Thr : based on traffic volume (RLCVS.DCCC.AttUpsizing.UL.Thr : based on traffic volume (RLC BO) or throughput


Uplink DCH DCCC Success (Cell)Uplink DCH DCCC Success (Cell)Number of Successful Operations of DCCC on DCH in the

uplink according to different DCCC strategy (Cell)

VS.DCCC.SuccDownsizing.UL.Thr : based on traffic volume


VS.DCCC.SuccDownsizing.UL.Cov : based on the coverage

VS.DCCC.SuccDownsizing.UL.Cong : based on resource

congestion

VS.DCCC.SuccUpsizing.UL.Thr : based on traffic volume



ContentsContents2. Counters Related to DCCC

2.1 Counters Related to Rate Reallocation

2.2 Counters Related to UE State Transition


UE State TransitionUE State TransitionNumber of handover attempts from the DCH to the FACH in the best cell

VS DCCC D2C AttVS.DCCC.D2C.Att

Number of handover attempts from the FACH to the DCH in the best cell

VS.DCCC.C2D.Att

Number of Successful Dynamic Configurations for DCH to CCH Handover

VS.DCCC.Succ.D2F

Number of Successful Dynamic Configurations for CCH to DCH Handover

VS.DCCC.Succ.F2D


SummarySummaryThis chapter mainly explained the counters about some

algorithms:

Load Control

Dynamic Channel Configuration Control


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