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Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd

WCDMA RAN

DCCCFeature Parameter Description

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without priorwritten consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd. All othertrademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the commercial contract made betweenHuawei and the customer. All or partial products, services and features described in this document maynot be within the purchased scope or the usage scope. Unless otherwise agreed by the contract, allstatements, information, and recommendations in this document are provided “AS IS” without warranties,guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.



WCDMA RAN

DCCC Contents

Issue 01 (2011-04-30) Huawei Proprietary and Confidential


i

Contents

1 Introduction ................................................................................................................................1-1 1.1 Scope ............................................................................................................................................ 1-1

1.2 Intended Audience ........................................................................................................................ 1-1 1.3 Change History .............................................................................................................................. 1-1

2 Overview .....................................................................................................................................2-1 3 DCCC Based on Traffic Volume ............................................................................................3-1

3.1 Overview ....................................................................................................................................... 3-1 3.2 Traffic Volume Measurement ........................................................................................................ 3-2 3.3 Rate Adjustment ............................................................................................................................ 3-3

4 DCCC Based on Throughput .................................................................................................4-1 4.1 Overview ....................................................................................................................................... 4-1 4.2 Throughput Measurement ............................................................................................................. 4-1 4.3 Rate Adjustment ............................................................................................................................ 4-3

5 DCCC Based on LDR ...............................................................................................................5-1 5.1 Overview ....................................................................................................................................... 5-1 5.2 Rate Adjustment Based on LDR ................................................................................................... 5-1 5.3 Penalty for Rate Increase Failure .................................................................................................. 5-2

6 Link Stability Control for BE ..................................................................................................6-1 6.1 Overview ....................................................................................................................................... 6-1 6.2 Basic Principle ............................................................................................................................... 6-1

6.2.1 Overview ............................................................................................................................... 6-1 6.2.2 UL Stability Control ............................................................................................................... 6-3 6.2.3 DL Stability Control ............................................................................................................... 6-4

6.3 Link Stability Measurement ........................................................................................................... 6-6 6.4 DCCC Based on Link Stability ....................................................................................................... 6-9

7 Parameters .................................................................................................................................7-1 8 Counters ......................................................................................................................................8-1 9 Glossary ......................................................................................................................................9-1 10 Reference Documents ......................................................................................................... 10-1



WCDMA RAN

DCCC 1 Introduction



1-1

1 Introduction

1.1 Scope

This document describes the Dynamic Channel Configuration Control (DCCC).

1.2 Intended Audience

This document is intended for:

Personnel who are familiar with WCDMA basics

Personnel who need to understand DCCC

Personnel who work with Huawei products

1.3 Change History

This section provides information on the changes in different document versions.

There are two types of changes, which are defined as follows:

Feature change: refers to the change in the DCCC feature.

Editorial change: refers to the change in wording or the addition of the information that was notdescribed in the earlier version.

Document Issues

The document issues are as follows:

01 (2011-04-30)

Draft B (2011-03-30) Draft A (2010-12-30)

01 (2011-04-30)

This is the document for the first commercial release of RAN13.0.

Compared with issue Draft B (2011-03-30) of RAN13.0, this issue has no change.

Draft B (2011-03-30)

This is the draft of the document for RAN13.0.

Compared with Draft A (2010-12-30) of RAN13.0, this issue optimizes the description.

Draft A (2010-12-30)

This is the draft of the document for RAN13.0.

This is a new document.



WCDMA RAN

DCCC 2 Overview



2-1

2 Overview

BE services consist of interactive services and background services. The rates of BE services fluctuategreatly. Adjusting service rates dynamically according to user's activities can improve the resource

usage. Adjusting service rates dynamically according to radio environments can improve the stability ofradio links.

DCCC (WRFD-021101 Dynamic Channel Configuration Control) is mainly used to control the rate of BEservices on the DCH and E-DCH.

Table 2-1 lists the functions of DCCC.

Table 2-1 Functions of DCCC

DCCC type Description

DCCC Based onTraffic Volume

RNC increases or decreases the rate of DCH BE services based on the trafficvolume measured in the RLC buffer in both UL and DL.

DCCC Based onThroughput

RNC increases or decreases the rate of DCH/E-DCH BE services based on thethroughput measured.

DCCC Based onLDR

When the cell enters the basic congestion state, RNC decreases the rate ofDCH/E-DCH BE services. When the cell exits from the basic congestion state,RNC increases the rate of DCH/E-DCH BE services through the DCCC function.

Link Stability Control Link stability control is applicable to DCH BE services. Link quality is measuredthrough the UE TX power or BLER in the UL or through the TCP or RLC PDUretransmission ratio in the DL. The RNC performs rate decrease or rate increaseor handover based on the link quality.

The DCCC function is controlled by the DraSwitch > DRA_DCCC_SWITCH parameter.

The UL DCCC based on traffic volume function is invalid for the BE service whose maximum UL rate isbelow or equal to the UL rate threshold for DCCC specified by UlDcccRateThd . Thus, excessivesignaling procedures can be avoided. The DL rate is limited in the same way. The DL rate threshold isspecified by DlDcccRateThd .

HSUPA DCCC and HSUPA dynamic CE resource management cannot be used simultaneously. Fordetails about HSUPA dynamic CE resource management, see the HSUPA Feature ParameterDescription.

If all the cells in the active set support HSUPA dynamic CE resource management, the BE service rate

is adjusted to the MBR (the rate need not be adjusted if the current rate is already the MBR), andHSUPA DCCC is invalid.

If any cell in the active set does not support HSUPA dynamic CE resource management, HSUPADCCC is valid.

If dynamic CE resource management is enabled for the entire network, disable HSUPA DCCC.

For DCCC of E-DCH BE services and DCCC rate adjustment of DCH BE services, two strategies areavailable, which can be specified by the parameter DcccStg or HsupaDcccStg :

The rate can be either increased or decreased as required.

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WCDMA RAN

DCCC 2 Overview



2-2

The rate can only be increased and not be decreased. This strategy is recommended if the networkresources are sufficient. When the UE is in the low active state, the UE state is changed toCELL_FACH or CELL_PCH/URA_PCH.

HSUPA DCCC has the following impacts on network performance:

More signaling exchange failures due to excessive DCCC actions in areas with weak coverage,increasing the PS call drop rate

Lack of support from certain UEs

When HSUPA state transition from CELL_DCH to CELL_FACH or from CELL_FACH to CELL_DCH isenabled, uplink Uu interface resource and CE resource consumption can be reduced. This, however,may lead to more signaling exchanges, increasing the probability of call drops in areas with weakcoverage.



WCDMA RAN

DCCC 3 DCCC Based on Traffic Volume



3-1

3 DCCC Based on Traffic Volume

3.1 Overview

DCCC based on traffic volume improves the utilization of base station transmission power, OVSF codes,Iub transmission resources and CEs.

Figure 3-1 DCCC based on traffic volume

Events 4a and 4b indicate different states of UL and DL traffic volumes. The RNC can increase ordecrease service rates according to the reported events. Event 4a indicates that the traffic volume ishigh, and thus the RNC needs to increase service rates. Event 4b indicates that the traffic volume is low,and thus the RNC needs to decrease service rates.

The following table shows the basic principle of DCCC based on traffic volume.

Table 3-1 DCCC Based on Traffic Volume

Direction Event Event Description DCCC

DCH UL/DL 4a RLC BO becomes greater than some threshold Increase rate

4b RLC BO becomes less than some threshold Decrease rate



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3-2

3.2 Traffic Volume Measurement

MeasurementItem

Event Description

UL/DL trafficvolume

4a/4b The RNC measure the downlink RLC buffer occupancy and the UE measures theuplink RLC buffer occupancy. If the traffic volume is excessively high, and event4a is triggered and if the traffic volume is excessively low, event 4b is triggered.

The traffic volume measurements defined in 3GPP TS 25.331 are applicable toonly the UL. For the DL, traffic volume measurements and associated rateadjustment are designed and implemented by Huawei

In the UL, the UTRAN sends to the UE the absolute threshold, time to triggerevent 4a or 4b, and pending time after trigger through a MEASUREMENTCONTROL message. The UE sends a report on event 4a or 4b through aMEASUREMENT REPORT message.

In the DL, measurement control is also performed through messages. The

difference is that all the interactions occur within the RNC in the DL.

For event 4a or 4b in the UL or DL:

If the traffic volume is above the threshold of event 4a specified by Event4aThd for a period of timespecified by TimetoTrigger4A , the UE/RNC sends a report on event 4a. In a period of time specifiedby the parameter PendingTime4A after sending the report on event 4a, the UE/RNC does not send itany more.

If the traffic volume is below the threshold of event 4b specified by Event4bThd for a period of timespecified by TimetoTrigger4B , the UE/RNC sends a report on event 4b. After sending the report on

event 4b, the UE/RNC does not send it again in a period of time specified by PendingTime4B . Rate adjustment based on traffic volume takes effect in the UL and DL separately. Associatedparameters are configured in the UL and DL separately. The parameter Direct ion specifies whether theparameters are configured in the UL or DL.

Figure 3-2 Triggering 4a for an increase in traffic volume

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3-3

Figure 3-3 Triggering 4b for a decrease in traffic volume

3.3 Rate Adjustment

The prerequisites for UL rate adjustment based on traffic volume are as follows:

The UL of the UE is in the link stable state. For details, see section 6 "Link Stability."

The UL of the cell is not in the basic congestion state.

If the UL of the cell is in the basic congestion state, only the service rate lower than the GBR can beincreased to the GBR.

The prerequisites for DL rate adjustment based on traffic volume are as follows:

If the function of DL rate adjustment based on link quality is enabled, the DL must be stable.

The DL of the cell is not in the basic congestion state.

If the DL of the cell is in the basic congestion state, only the service rate lower than the GBR can beincreased to the GBR.

After receiving a report on event 4b, the RNC triggers rate decrease. After receiving a report on event 4a,the RNC triggers rate increase. The minimum value to which the rate can be decreased is the UL/DL ratethreshold for DCCC. The maximum value to which the rate can be increased is the MBR.

The triggering and processing in the UL and DL are performed separately. The UL and DL is processing

in the same way. If the UL/DL rate decrease level is 2_Rates, the rate is decreased directly to the UL/DL rate threshold

for DCCC.

If the UL/DL rate increase level is 2_Rates and the current rate is below the UL/DL DCCC ratethreshold, the current rate is increased to the UL/DL DCCC rate threshold. If the current rate is aboveor equal to the UL/DL rate threshold for DCCC and lower than the MBR, the current rate is increasedto the MBR.

If the UL/DL rate decrease level is 3_Rates and the current rate is the MBR, the current rate isdecreased to the UL/DL middle rate threshold and then to the UL/DL rate threshold for DCCC. If thecurrent rate is lower than the MBR but higher than the UL/DL rate threshold for DCCC, the current rateis decreased to the UL/DL rate threshold for DCCC.



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3-4

If the UL/DL rate increase level is 3_Rates and the current rate is below the UL/DL DCCC ratethreshold, the rate is increased to the UL/DL rate threshold for DCCC. If the current rate is equal to theUL/DL rate threshold for DCCC, the current rate is increased to the UL/DL middle rate threshold andthen to the MBR. If the current rate is lower than the MBR but higher than the UL/DL rate threshold forDCCC, the current rate is increased to the MBR.

Table 3-2 lists the configuration items used in rate adjustment based on traffic volume.

Table 3-2 Configuration items used in rate adjustment based on traffic volume

Configuration Item Description

UL rate threshold for DCCC Specified by the parameter UlDcccRateThd .

DL rate threshold for DCCC Specified by the parameter DlDcccRateThd .

UL middle rate threshold The parameter UlMidRateCalc specifies whether the UL middle ratethreshold is set automatically or manually. If the parameter UlMidRateCalc specifies manual setting, the UL middle rate can be specified by the

parameter UlMidRateThd .

DL middle rate threshold The parameter DlMidRateCalc specifies whether the DL middle ratethreshold is set automatically or manually. If the parameter DlMidRateCalc specifies manual setting, the DL middle rate can be specified by theparameter DlMidRateCalc .

UL rate increase level Specified by the parameter UlRateUpAdjLevel .

UL rate decrease level Specified by the parameter UlRateDnAdjLevel .

DL rate increase level Specified by the parameter DlRateUpAdjLevel .

DL rate decrease level Specified by the parameter DlRateDnAdjLevel .

Figure 3-4 Rate adjustment when the UL rate increase and decrease level are 3_Rates







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WCDMA RAN

DCCC 4 DCCC Based on Throughput



4-1

4 DCCC Based on Throughput

4.1 Overview

This section involves the feature "WRFD-01061208 HSUPA DCCC."

For the DCH and E-DCH, the strategies for rate adjustment based on throughput are different as follows:

For throughput-based rate adjustment on the E-DCH, rate increase or decrease can be triggeredaccording to the received event 4a or 4b respectively.

For throughput-based rate adjustment on the DCH in the UL or DL, only rate decrease can betriggerred according to the received event 4b.

The switches for rate adjustment based on throughput are as follows:

To enable throughput-based rate adjustment on the DCH, turn on the switch CfgSwitch >THROU_DCCC_SWITCH (SET UCORRMALGOSWITCH).

To enable throughput-based rate adjustment for HSUPA, turn on the switch DraSwitch >DRA_HSUPA_DCCC_SWITCH (SET UCORRMALGOSWITCH).

The following table shows the basic principle of DCCC based on throughput.

Table 4-1 DCCC Based on Throughput

Direction Event Event description DCCC

E-DCH UL 4a Throughput of radio bearer becomes greater than some threshold Increase rate

4b Throughput of radio bearer becomes less than some threshold Decrease rate

DCH UL/DL 4b Throughput of radio bearer becomes greater than some threshold Decrease rate

4.2 Throughput Measurement

Measurement Item Event Description

UL/DL throughput 4a/4b In each measurement period, the RNC MAC-d measures the trafficvolume of radio bearers (RBs). Then, RNC divides the measurementresult by the measurement period to obtain the throughput.

The throughput measurement period can be specified by the parameter E2FThrouMeasPeriod forservices on the E-DCH and DchThrouMeasPeriod f or services on the DCH.

Assume that AvgThroughput represents the throughput of an RB during a measurement period. Then:

For E-DCH, If the AvgThroughput is above the threshold of event 4a for a period of time specified byEdchTimetoTr igger4A and the current time is not in the pending time after trigger, then event 4a istriggered. After event 4a is triggered, it cannot be triggered any more in the period of time specified byEdchPendingTime4A.

For E-DCH, If the AvgThroughput is below the threshold of event 4b for a period of time specified byEdchTimetoTr igger4B and the current time is not in the pending time after trigger, then event 4b istriggered. After event 4b is triggered, it cannot be triggered any more in the period of time specified byEdchPendingTime4B .

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4-2

For DCH, If the AvgThroughput is below the threshold of event 4b for a period of time specified byDchThrouTimetoTr igger4B and the current time is not in the pending time after trigger, then event 4bis triggered. After event 4b is triggered, it cannot be triggered any more in the period of time specifiedby DchThrouPendingTime4B .

Figure 4-1 shows the mechanism of measuring the throughput and reporting events 4a and 4b. In thisexample, the time to trigger event 4a or 4b is three consecutive measurement periods, and the pendingtime after trigger is four consecutive measurement periods.

Figure 4-1 Mechanism of measuring the throughput and reporting events 4a and 4b

Reports on events 4a and 4b are based on the set of adjustment rates and throughput thresholds {(R1,TR1), ..., (Ri, TRi), ..., (RN, TRN)}. Ri is an adjustment rate and TRi is the corresponding throughputthreshold.

For services on the DCH, the R i adjustment rate set is {rate threshold for DCCC, middle rate,maximum rate}. The throughput threshold is as follows: R t-1 = R t-1 x 90%.

For details of the parameters of the DCH rate set, see 3 DCCC Based on Traffic Volume.

For services on the E-DCH, Ri is the adjustment rate set specified by EdchRateAdjustSet , and RN isthe maximum rate. TRi = Ri x (Threshold rate ratio)i (see Table 4-2 for details). TRMBR = MBR x(Threshold rate ratio)MBR.

− If Rt < MBR ≤ Rt+1 (1 ≤ t ≤ N –1), the set of E-DCH adjustment rates and associated throughputthresholds is: {(R1, TR1), ..., (Ri, TRi), ..., (Rt, TRt), ( MBR, TRMBR)}.

− If MBR > RN, the set of E-DCH adjustment rates and associated throughput thresholds is: {(R 1,TR 1), ..., (R i , TR i ), ..., (R N , TR N ), ( MBR, TRMBR)}.

Assume that Rt is the current service rate. The threshold settings of events 4a and 4b are as follows:

The 4a threshold for E-DCH service is TR t , and the 4b threshold is R t-1. If the current HSUPAadjustment rate is the minimum rate, the threshold of event 4b is specified by E2FThrouThd .

The 4b threshold for DCH service is TR t-1. TR t-1 = R t-1 x 90%

Table 4-2 Threshold rate ratios for different E-DCH rates

Rate Threshold Rate Ratio

8 kbit/s 90%

16 kbit/s 80%

32 kbit/s 80%

64 kbit/s 90%

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4-3

Rate Threshold Rate Ratio

128 kbit/s 80%

144 kbit/s 80%

256 kbit/s 80%

384 kbit/s 75%

608 kbit/s 75%

1280 kbit/s 75%

2048 kbit/s 75%

2720 kbit/s 70%

5440 kbit/s 70%

11480kbit/s 70%

4.3 Rate Adjustment

Except that rate increase cannot be performed on the DCH, the rate adjustment procedures based onthroughput on the E-DCH and DCH are the same.

After a report on event 4a is received, the rate is increased by one level, that is, from Rt to Rt+1. If thecurrent rate is the MBR, no action is required.

After a report on event 4b is received, the rate is decreased to a rate that is close to the corresponding

throughput. If the reported throughput is TR and TRi-1 <TR < TRi, then the RB adjustment rate is Ri.

Figure 4-2 Average throughput between TR i –1 and TR i

If the rate adjustment strategy is only rate increase rather than rate decrease, the rate adjustmentmethod is the same as that mentioned earlier, but rate decrease is not performed after the report onevent 4b is received. Instead, state transition is performed.



WCDMA RAN

DCCC 5 DCCC Based on LDR



5-1

5 DCCC Based on LDR

5.1 Overview

Basic congestion may trigger LDR, and LDR can reduce load by reducing the rate of BE services. Fordetails, see the Load Control Feature Parameter Description.

When the cell enters the basic congestion state, the RNC decreases BE rates through the DCCCfunction to relieve the congestion.

The following table shows the basic principle of DCCC based on LDR.

Table 5-1 DCCC based on LDR

Direction Event Event description DCCC

DCH UL/DL orE-DCH UL

Basic congestion Cell load (uplink or downlinkpower) is greater than LDR

trigger threshold

Decrease rate for UEs selected byLDR until congestion is relieved.

DCH UL/DL orE-DCH UL

Congestionrelieved + 4a

Cell leaves basic congestionstate and receives 4a

The previously downgraded bearersmay have their rate increased.

5.2 Rate Adjustment Based on LDR

When LDR triggers BE service rate decrease, the selected RAB rate is decreased to the target rate. Thetarget rates are different for DCH RAB and HSUPA RAB.

For a DCH RAB, the rate adjustment level is fixed to 3_Rates. If the rate decrease level

(UlRateDnAdjLevel or DlRateDnAdjLevel ) is set to 2_Rates, the middle rate is calculated by theRNC and the middle rate is approximately equal to the MBR divided by two.

− If the current rate is equal to the MBR, it is decreased to the UL/DL middle rate threshold(UlMidRateThd /DlMidRateThd ). The middle rate threshold is the same as that described in section3 "DCCC Based on Traffic Volume."

− If the current rate is higher than the GBR but lower than the MBR, it is decreased to the GBR.

For an E-DCH RAB, a rate is selected from the HSUPA UL rate adjustment set (EdchRateAdjustSet ) as the target rate for rate decrease.

− The target rate must be smaller than but the closest to the current rate.

− The target rate must be greater than or equal to the GBR.

− For details about the HSUPA UL rate adjustment set (EdchRateAdjustSet ), see section 4.2"Throughput Measurement."

Figure 5-1 shows an example of UL DCH BE rate decrease and increase.









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5-2

Figure 5-1 UL BE rate decrease and increase based on LDR

DCCC based on LDR can trigger only rate decrease while the rate increase is stilled controlled by DCCCbased on Traffic Volume.

5.3 Penalty for Rate Increase Failure

A rate increase failure may be due to lack of Iub resources, lack of cell resources, NodeB exception, UE

exception, or other causes. If rate increase failures occur frequently, rate increase attempts have to beprevented for a period of time.

Figure 5-2 shows the procedure for penalizing rate increase failures when the adjustment level is2_Rates.



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5-3

Figure 5-2 Rate increase failure penalty in the case of 2_Rates adjustment

The symbols in Figure 5-2 are described as follows:

1 –8: indicating that event 4a is reported from the UE

S1: indicating that the cell is in the normal state

S2: indicating that the cell is in the congestion state

S3: indicating that the cell is restored from the congestion state

After the first rate increase fails, the timer (MoniTimeLen ) for detecting DCCC rate increase failures isstarted.

If the number of the rate increase failures is above or equal to the corresponding threshold (FailTimeTh ) during the period (MoniTimeLen ), the penalty timer is started. No rate increase attempt is allowedbefore the penalty timer expires.

When the cell is in the basic congestion state, the rates lower than the GBR can be increased. Whetherrate increase can succeed depends on whether the required resources are sufficient.

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DCCC 6 Link Stability Control for BE



6-1

6 Link Stability Control for BE

6.1 Overview

When the UL or DL quality deteriorates, the link stability control function triggers a rate decrease, aninter-frequency handover, or an inter-RAT handover, so as to guarantee the stability of links.

The UL stability control function is applicable to only the scenario of single RAB or 1CS AMR/VP + 1PSBE combined services. For 1CS + 1PS combined services, the link stability control function for PS BEservices is performed.

The link stability control function switches for different services are set through the SET UQOSACT command.

The link stability control functions for different services are as follows:

Link Stability Control for AMR

For details, see AMR Feature Parameter Description Link Stability Control for VP

For details, see Video Phone Feature Parameter Description

Link Stability Control for BE

6.2 Basic Principle

6.2.1 Overview

Link stability control for BE services is implemented by the RNC. Excessively high TX power means thatassociated links are unstable. In this case, link stability control is performed through rate decrease, QoShandover (inter-frequency or inter-RAT) to ensure link stability and the QoS. Rate decrease in linkstability control is implemented through DCCC.

Figure 6-1 Link stability control

Different rate has different coverage. When UE moves around in a cell, the link quality varies. Thefunction of link stability control checks the link quality and triggers DCCC/Handover to ensure QoSperceived by user and avoid call drop due to power limitation

The following table shows the basic principle of link stability control for BE.

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6-2

Table 6-1 Link stability control for BE

Direction Event Event description DCCC Handover

DCH DL Ea or Ea + A Tx code power becomes larger than

threshold (Ea).RLC PDU retransmission ratio becomeslarger than threshold (A)

Decrease rate Start measurement

for handover

Eb Tx code power becomes less thanthreshold (Eb).

Stop decreasingrate

Stop measurementfor handover

Fb Tx code power becomes larger thanthreshold (Fb).

Stop Increasingrate

-

Fa + 4a Tx code power becomes less thanthreshold (Fa).

Traffic volume becomes larger than

threshold (4a).

Increase rate -

DCH UL 6D or 6A1 or5A or 6A1 +5A

UE Tx power becomes larger thanabsolute threshold (6A1/6D)

Uplink BLER becomes larger thanthreshold (5A)

Decrease rate Start measurementfor handover

6B1 UE Tx power becomes less thanabsolute threshold

Stop decreasingrate

Stop measurementfor handover

6A2 UE Tx power becomes larger thanabsolute threshold (6A2 event)

Stop Increasingrate

-

6B2 + 4a UE Tx power becomes less thanabsolute threshold (6B2).

Traffic volume becomes larger thanthreshold (4a).

Increase rate orD2E channelswitch

-

For UL trigger conditions:

When BeUlQos6DMcSwitch is set to ON, event 6D triggers UL stability control.

When BeUlEvTrigInd is set to SINGLE and BeUlQos6A1McSwitch is set to YES, event 6A1 triggersUL stability control.

When BeUlEvTrigInd is set to SINGLE and BeUlQos5AMcSwitch is set to YES, event 5A triggers ULstability control.

When BeUlEvTrigInd is set to COMBINE, only combined events 6A1 + 5A can trigger UL stabilitycontrol.

For DL trigger conditions:

When SrncBeDlRlcQosSwitch is set to YES, TCP and RLC retransmission (event A + event Ea)trigger DL stability control.

When SrncBeDlRlcQosSwitch is set to NO, only TCP (event Ea) triggers DL stability control.

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6-3

6.2.2 UL Stability Control

Figure 6-2 shows the UL stability control procedure.

Figure 6-2 UL stability control procedure



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6-4

Note 1:

UL stability control actions are taken sequentially. If an action fails, the RNC takes the next action.

The sequence is set on the LMT through the following parameters:

- First BE UL QoS enhancement action: BeUlAct1

- Second BE UL QoS enhancement action: BeUlAct2

- Third BE UL QoS enhancement action: BeUlAct3

Note 2:

A, B, and C in the figure denote the following actions:

- A denotes a rate decrease.

- B denotes an inter-frequency handover.

- C denotes an inter-RAT handover.

Note 3:

Assume that the previous stability control procedure includes rate decrease actions and that the

current rate is higher than the UL full-coverage rate (UlFullCvrRate ). Then, the current stability

control procedure excludes the actions presented in dashed boxes.

Note 4:

The wait timer for BE UL rate adjustment is specified by the BeUlRateAdjTimerLen parameter.

6.2.3 DL Stability Control

Figure 6-3 shows the DL stability control procedure.

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6-5

Figure 6-3 DL stability control procedure



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6-6

Note 1:

DL stability control actions are taken sequentially. If an action fails, the RNC takes the next

action. The sequence is set on the LMT through the following parameters:

First BE DL QOS enhancement action: BeDlAct1

Second BE DL QOS enhancement action: BeDlAct2

Third BE DL QOS enhancement action: BeDlAct3

Note 2:

A, B, and C in the figure indicate the following actions:

A indicates a rate decrease.

B indicates an inter-frequency handover.

C indicates an inter-RAT handover.

Note 3:

Assume that the previous stability control procedure includes rate decrease actions and that the

current rate is higher than the DL full-coverage rate (DlFullCvrRate ). Then, the current stability

control procedure excludes the actions presented in dashed boxes.

6.3 Link Stability Measurement

Overview

Measurement Item Event Description

UL TX power of theUE

6A1/6B1

6A2/6B2

6D

The UE measures UL TX power and report the events to the RNC.

DL TX power of the

DPCCH pilot

Ea/Eb

Fa/Fb

The NodeB periodically measures and reports downlink DPCCH pilot

power to the RNC.The RNC converts it to the DPDCH power andtriggers the respective events by comparing the power with the thethreshold.

UL BLER 5A The RNC MAC-d calculates the BLER. When the BLER of the uplink isabove 5A threshold, the RNC triggers the events.I

DL RLC PDUretransmission

A The RNC calculate the retransmission ratio according to the received ACKs and NACKs. If the RLC PDU retransmission ratio is above thethreshold of event A, the RNC triggers the events.

UL Event 6A1/6A2/6B1/6B2/6D According to the measurement result of UE TX power in the UL, event 6A, 6B, or 6D is triggered. Fordetails about triggering modes, see AMR Feature Parameter Description. The following new triggeringtime parameters are introduced: UlBeTrigTime6A1 , UlBeTrigTime6A2 , UlBeTrigTime6B1 , UlBeTrigTime6B2 , and UlBeTrigTime6D .

Ul Event 5A

The UL BLER measurement may trigger event 5A. The RNC defines a sliding window of a certain lengththrough the parameter StaBlkNum5A. Each time the RNC receives a data block, it compares thenumber of error blocks in the sliding window with the threshold of event 5A specified by the parameterThd5A . If the number of error blocks is above or equal to the threshold of event 5A, event 5A is triggered.

Then, the RNC can trigger again event 5A only after the number of received error blocks reachesHangBlockNum5A , to avoid excessive reporting of event 5A.

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6-7

Figure 6-4 shows the mechanism of triggering and reporting event 5A.

Figure 6-4 Mechanism of triggering and reporting event 5A

DL Event Ea/Eb/Fa/FbEvent E is used to check whether the DL power is excessively high. Event E can trigger a DL ratedecrease. Event E consists of event Ea and event Eb. Event F is used to check whether the current TXpower allows a rate increase. Event F consists of event Fa and event Fb.

According to the measurement result of DL TX power in the pilot field of the DPCCH, event E or F istriggered as follows:

If the TX power in the pilot field of the DPCCH is above the threshold of event Ea or Fa for a period oftime specified by DlBeTrigTimeE or DlBeTrigTimeF , event Ea or Fa is triggered. Then, the NodeBperiodically reports the measurement results of TX power to the RNC. The period for the NodeB toreport measurement results is specified by the parameter ChoiceRptUnitForBeE , TenMsecForBeE , or MinForBeE for event E and by the parameter ChoiceRptUnitForBeF , TenMsecForBeF , orMinForBeF for event F.

If the TX power in the pilot field of the DPCCH is below the threshold of event Eb or Fb for a period oftime, event Eb or Fb is triggered. Then, the NodeB stops reporting the measurement results of TXpower.

The thresholds of events Fa and Fb are the same. The threshold of event F cannot be above the threshold of event Ea.Otherwise, the threshold of event F is set to the threshold of event Ea.

The threshold of event E is related to services. The relative threshold of event Ea or Eb is calculatedaccording to the following formula:

E threshold = Pmax –ThdEa /ThdEb + PO3

In the equation:

E threshold is the relative threshold of event Ea or Eb.

ThdEa / ThdEb is the relative threshold of event Ea or Eb respectively.

Pmax is the maximum DL TX power of DPDCHs

PO3 is the offset from the TX power in the pilot field of the DPCCH to the TX power of the DPDCH.

The threshold of event F is related to the current rate and the target rate of rate increase (triggered byevent 4a). The threshold of event F is calculated according to the following formula:

F threshold = Pmax – ∆p – Pmargin –ThdEa + PO3

In the equation:

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6-8

Pmax is the maximum DL TX power of DPDCHs corresponding to the target rate.

∆p is the power difference between the current rate and the target rate.

Pmargin is determined by the parameter BePwrMargin for a single service or by the parameterCombPwrMargin for combined services.

Ea relative threshold is used to avoid repeated triggering of event Ea after a rate increase.

PO3 is the offset from the TX power in the pilot field of the DPCCH to the TX power of the DPDCH.

Figure 6-5 shows the mechanism of reporting event F.

Figure 6-5 Mechanism of reporting event F

DL Event A

The DL RLC PDU retransmission ratio is calculated according to the ACK or NACK feedback information.The measurement of RLC PDU retransmission ratio can be set by the parameterSrncBeDlRlcQosSwitch through the SET UQOSACT command.

The RLC PDU retransmission ratio is reported to layer 3 from layer 2. Figure 6-6 shows the threshold forreporting the RLC PDU retransmission ratio.

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6-9

Figure 6-6 Threshold for reporting the RLC PDU retransmission ratio

The procedure for measuring the RLC PDU retransmission ratio is as follows:

1. Set up a sliding window for calculating the RLC PDU retransmission ratio periodically according tothe period of monitoring the retransmission ratio specified by the parameter MoniterPrd .

2. Check whether the RLC PDU retransmission ratio is above the threshold of event A specified by theparameter EventAThred . If it is above the threshold for a period of time, that is, MoniterPrd xTimeToTriggerA , event A is triggered and the RLC PDU retransmission ratio is reported.

Event A based on the RLC PDU retransmission ratio is defined by Huawei. It is not a standard eventspecified by 3GPP specifications.

In the period of time (MoniterPrd x TimeToTriggerA) after event A is reported, the RLC PDUretransmission ratio is not calculated any more. If a report on event Ea is already received before areport on event A is received, the system may reduce the DL rate.

6.4 DCCC Based on Link Stability

Rate adjustment based on link stability is applicable to BE services on the DCH.

After an event indicating that the link quality is poor is reported, the RNC triggers rate decrease. Whenthe associated conditions are met, the RNC adjusts the service rate to the original one. The rateadjustment methods in the UL and DL are the same. The adjustment processes are performedseparately.

Rate Decrease

Rate decrease based on link quality is performed in the following way:

The rate decrease level is fixed to 3_Rates. If the rate decrease level (UlRateDnAdjLeveL orDlRateDnAdjLevel ) is set to 2_Rates, the middle rate is calculated by the RNC.

If the current rate is equal to the MBR, it is decreased to the middle rate threshold specified byUlMidRateThd or DlMidRateThd .

If the current rate is higher than the full-coverage rate specified by UlFullCvrRate or DlFullCvrRate but lower than the MBR, it is decreased to UlFullCvrRate or DlFullCvrRate .

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6-10

Figure 6-7 Rate adjustment based on link quality when the adjustment level is 3_Rates

Rate Increase

Before rate increase, the RNC checks whether the current power is sufficient. If the power is sufficient,rate increase is triggered by event 4a.

In the UL:

If the RNC receives a report on event 6B2 but does not receive any report on event 6A2, the channelpower is sufficient. In this case, rate increase based on traffic volume can be triggered by event 4a.

If the RNC receives a report on event 6A2, no rate increase based on traffic volume can be triggeredby event 4a. If the RNC receives a report on event 6B1, rate decrease is stopped and no rate increasecan be triggered.

In the DL:

If event Fa is reported, you can infer that the DL channel power is sufficient. If event 4a is also reported,a rate increase can be triggered.

If event Fb is reported, you can infer that the DL channel power is insufficient. In this case, no rateincrease can be triggered.

For details about the procedure of rate increase, see section 3 DCCC Based on Traffic Volume



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DCCC 7 Parameters



7-1

7 Parameters

Table 7-1 Parameter description

Parameter ID NE MML Command DescriptionBeDlAct1 BSC6900 SET UQOSACT(Optional) Meaning:The first action selected by the QoS

control algorithm when the DL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-ratesrule

GUI Value Range:None, RateDegrade,InterFreqHO, InterRatHO

Actual Value Range:None, RateDegrade,InterFreqHO, InterRatHO

Default Value:RateDegrade

BeDlAct2 BSC6900 SET UQOSACT(Optional) Meaning:The second action selected by theQoS control algorithm when the DL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-ratesrule



Default Value:None

BeDlAct3 BSC6900 SET UQOSACT(Optional) Meaning:The third action selected by the QoScontrol algorithm when the DL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-ratesrule



Default Value:None

BePwrMargin BSC6900 ADDUCELLDCCC(Optional)

MODUCELLDCCC(Optional)

Meaning:The relative power margin of singleBE traffic, used to calculate the triggeringthreshold of event F, can avoid the fluctuationof traffic rate in case the power becomesrestricted after rate is increased

GUI Value Range:0~100

Actual Value Range:0~10

Default Value:10

BeUlAct1 BSC6900 SET UQOSACT(Optional) Meaning:The first action selected by the QoS



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http://localhost/var/www/apps/conversion/tmp/RNCParaHtml/mbsc/m-mml/add-ucelldccc.html



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DCCC 7 Parameters



7-2

control algorithm when the UL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-ratesrule



Default Value:None

BeUlAct2 BSC6900 SET UQOSACT(Optional) Meaning:The second action selected by theQoS control algorithm when the UL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-rates

ruleGUI Value Range:None, RateDegrade,InterFreqHO, InterRatHO


Default Value:None

BeUlAct3 BSC6900 SET UQOSACT(Optional) Meaning:The third action selected by the QoScontrol algorithm when the UL QoS of BEservice deteriorates.If QoS action isRateDegrade, then the rate will be downsizedto the full coverage rate according to 3-rates

rule



Default Value:None

BeUlEvTrigInd BSC6900 SET UQOSACT(Optional) Meaning:For BE service, When the parameteris set to SINGLE, an UL event 6A1 or 5A canindependently trigger the QoS enhancementaction. The 6A1, 5A switch settings decide

whether to perform 6A1 or 5A measurementcontrol. When the parameter is set toCOMBINE, only combined events 6A1+5A cantrigger the QoS enhancement action, andwhether to perform 6A1 and 5A measurementis not controlled by the 6A1 and 5Ameasurement switch

GUI Value Range:SINGLE, COMBINE

Actual Value Range:SINGLE, COMBINE

Default Value:SINGLE

BeUlQos5AMc

Switch

BSC6900 SET UQOSACT(Optional) Meaning:Event 5A measurement switch when

BeUlEvTrigInd is set to SINGLE for BE service.





























WCDMA RAN

DCCC 7 Parameters



7-3

If this parameter is set to YES, event 5Ameasurement is delivered

GUI Value Range:NO, YES

Actual Value Range:NO, YES

Default Value:YES

BeUlQos6A1McSwitch

BSC6900 SET UQOSACT(Optional) Meaning:Event 6A1 measurement switch whenBeUlEvTrigInd is set to SINGLE for BE service.If this parameter is set to YES, event 6A1measurement is delivered



Default Value:YES

BeUlQos6DMcSwitch

BSC6900 SET UQOSACT(Optional) Meaning:UL event 6D measurement switch forBE service. If this parameter is set to YES,event 6D measurement is delivered



Default Value:NO

BeUlRateAdjTimerLen

BSC6900 SET UQOSACT(Optional) Meaning:Timer to trigger the next QoSenhancement action for UL BE services. Thisparameter specifies the duration of waiting forthe UL QoS enhanced acknowledgement afterUL rate adjustment.

The timer starts when the BE UL rate

adjustment procedure is triggered, and stopswhen the RNC receives a 6B1/6B2 event orwhen the timer expires



Default Value:3000

CfgSwitch BSC6900 SETUCORRMALGOSWITCH(Optional)

Meaning:Channel configuration strategy switchgroup.

1) CFG_DL_BLIND_DETECTION_SWITCH:When the switch is on, the DL blind transport

format detection function is used for singleSRB and AMR+SRB bearers. Note that the UEis only required to support the blind transportformat stipulated in 3GPP 25.212 section 4.3.1.

2) CFG_HSDPA_64QAM_SWITCH: When theswitch is on, 64QAM can be configured for theHSDPA service.

3) CFG_HSDPA_DC_SWITCH: When theswitch is on, DC can be configured for theHSDPA service.

4) CFG_HSDPA_MIMO_SWITCH: When the

switch is on, MIMO can be configured for the


















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DCCC 7 Parameters



7-4

HSDPA service.

5)CFG_HSDPA_MIMO_WITH_64QAM_SWITCH: When the switch is on and the switches for

64QAM and MIMO are on, 64QAM+MIMO canbe configured for the HSDPA service

6) CFG_HSPA_DTX_DRX_SWITCH: Whenthe switch is on, DTX_DRX can be configuredfor the HSPA service.

7)CFG_HSPA_HSSCCH_LESS_OP_SWITCH:When the switch is on, HS-SCCH LessOperation can be configured for the HSPAservice.

8) CFG_HSUPA_16QAM_SWITCH: When theswitch is on, 16QAM can be configured for theHSUPA service.

9) CFG_IMS_SUPPORT_SWITCH: When theswitch is on and the IMS license is activated,the RNC supports IMS signaling.

10)CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH: When the switch is on, DL losslessRLC PDU size change is supported.

11)CFG_LOSSLESS_RELOC_CFG_SWITCH:When the switch is on and the UE supports

lossless relocation, the RNC configureslossless relocation for PDCP parameters if therequirements of RLC mode, discard mode, andsequential submission are met. Then, losslessrelocation is used for the UE.

12) CFG_MULTI_RAB_SWITCH: When theswitch is on, the RNC supports multi-RABscombinations such as 2CS, 2CS+1PS,1CS+2PS, and 2PS.

13)CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH: When the switch is on and the PDCPHeader compression license is activated, thePDCP header compression algorithm for IPv6is used at the RNC.

14) CFG_PDCP_RFC2507_HC_SWITCH:When the switch is on and the PDCP Headercompression license is activated, the PDCPRFC2507 header compression algorithm isused for the RNC.

15) CFG_PDCP_RFC3095_HC_SWITCH:When the switch is on and the PDCP ROHClicense is activated, the PDCP RFC3095

header compression algorithm is used for the



WCDMA RAN

DCCC 7 Parameters



7-5

RNC.

16) CFG_PTT_SWITCH: When this switch ison, the RNC identifies the PTT user based onthe QoS attributes in the RAB assignment

request message. Then, the PTT users aresubject to special processing.

17)CFG_RAB_REL_RMV_HSPAPLUS_SWITCH:When this switch is on and if an RAB release isperformed, the RNC decides whether to fallback a certain HSPA(HSPA+) feature based onthe requirement of remaining traffic carried bythe UE. That is, if an HSPA+ feature is requiredby the previously released RAB connection butis not required in the initial bearer policy of theremaining traffic, the RNC falls back the feature

to save the transmission resources. TheHSPA+ features that support the fallback areMIMO, 64QAM, MIMO+64QAM, UL 16QAM,DC-HSDPA, and UL TTI 2ms.

18) CFG_EDPCCH_BOOSTING_SWITCH:When the switch is on, Boosting can beconfigured for the HSUPA service.

19) CFG_HSDPA_DCMIMO_SWITCH: Whenthis switch is turned on, DC+MIMO can beconfigured for the HSDPA service.

20) CFG_FREE_USER_SWITCH: When thisswitch is turned on, special handling for freeaccess user is enabled.

21)CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH: When this switch is turned on, the RNCdetermines whether to enable the DC-HSDPAor MIMO feature for a newly admitted userbased on the cell load and the number ofHSDPA users

GUI ValueRange:CFG_DL_BLIND_DETECTION_SWITCH, CFG_HSDPA_64QAM_SWITCH,

CFG_HSDPA_DC_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH, CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH,CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH, CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,



WCDMA RAN

DCCC 7 Parameters



7-6

CFG_PTT_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_FREE_USER_SWITCH,

CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH

Actual ValueRange:CFG_DL_BLIND_DETECTION_SWITCH, CFG_HSDPA_64QAM_SWITCH,CFG_HSDPA_DC_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH, CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH,CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH, CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,CFG_PTT_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_FREE_USER_SWITCH,

CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH

Default Value:None

ChoiceRptUnitForBeE

BSC6900 ADDUCELLQUALITYMEAS(Optional)

MODUCELLQUALITYMEAS(Optional)

Meaning:This parameter specifies the reportingperiod of the event E of the BE service. Theunit of the reporting period can be 10 ms orminute

GUI Value Range:TEN_MSEC, MIN

Actual Value Range:TEN_MSEC, MIN

Default Value:TEN_MSEC

ChoiceRptUnitForBeF



Meaning:This parameter specifies the reportingperiod of the event F of the BE service. Theunit of the reporting period can be 10 ms orminute

GUI Value Range:TEN_MSEC, MIN

Actual Value Range:TEN_MSEC, MIN

Default Value:TEN_MSEC

CombPwrMargin

BSC6900 ADDUCELLDCCC(Optional)

MOD

UCELLDCCC(Optional)

Meaning:The relative power margin ofcombined traffics, used to calculate thetriggering threshold of event F, can avoid the

fluctuation of traffic rate in case the power




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DCCC 7 Parameters



7-7

becomes restricted after rate is increased



Default Value:20

DcccStg BSC6900 SET UDCCC(Optional) Meaning:Strategy for adjustment of the rate ofthe PS BE service when the UE is in theCELL_DCH state.RATE_UP_AND_DOWN_ON_DCH indicatesthat the rate over the DCH can be raised orlowered. RATE_UP_ONLY indicates that therate over the DCH can only be raised. WhenUE is in low activity state, it is no need todegrade the traffic rate to the threshold forDCCC before state transition to CELL_FACH.That means UE can transit to CELL_FACH

state at any rateGUI ValueRange:RATE_UP_AND_DOWN_ON_DCH,RATE_UP_ONLY_ON_DCH

Actual ValueRange:RATE_UP_AND_DOWN_ON_DCH,RATE_UP_ONLY_ON_DCH

DefaultValue:RATE_UP_AND_DOWN_ON_DCH

DchThrouMeasPeriod

BSC6900 SET UDCCC(Optional) Meaning:This parameter specifies the period ofDCH throughput ratio measurement.Macd

performs statistic of traffic volume on DCH andreports 4B events which are used for the ratedecrease process of BE service set up on DCH



Default Value:100

DchThrouPendingTime4B

BSC6900 ADDUTYPRABDCCCMC(Optional)

MOD

UTYPRABDCCCMC(Optional)

Meaning:Number of measurement periodsduring which no event 4B related to DCHthroughput is reported again after such anevent 4B is reported. This parameter is set to

avoid too many channel reconfigurationoperations. The larger the value of thisparameter, the longer the time from the lastreporting of throughput-related event 4B onDCH to the next reporting, and the smaller thepossibility of triggering throughput-relatedevent 4B on DCH



Default Value:16

DchThrouTime

toTrigger4B

BSC6900 ADD

UTYPRABDCCCMC(Option

Meaning:Number of measurement periods

f rom the moment when the DCH rate falls



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al)

MODUTYPRABDCCCMC(Optional)

below the 4B threshold to the moment whenthe throughput-related event 4B on DCH istriggered. This parameter is set to avoidunnecessary reports triggered by DCHthroughput fluctuation. The larger the value of

this parameter, the longer the required durationof the DCH throughput keeping below the 4Bthreshold, and the smaller the possibility oftriggering throughput-related event 4B on DCH



Default Value:2

Direction BSC6900 ADDUTYPRABDCCCMC(Mandatory)

MODUTYPRABDCCCMC(Mandatory)

Meaning:Direction that the traffic volumemeasurement is applicable to. DOWNLINKindicates downlink traffic volume

measurement. UPLINK indicates uplink trafficvolume measurement or E-DCH throughputmeasurement

GUI Value Range:UPLINK, DOWNLINK

Actual Value Range:UPLINK, DOWNLINK

Default Value:None

DlBeTrigTimeE



Meaning:Duration from when the BE TX poweris beyond the threshold Ea to when the eventEa is triggered or from when the BE TX poweris below the threshold Eb to when the event Ebis triggered. This parameter is used to avoid

faulty reporting due to instability of power



Default Value:64

DlBeTrigTimeF



Meaning:Duration within which the measuredpower being lower than the threshold isallowed for BE service. This parameter is usedto avoid faulty reporting due to instability ofpower. If the parameter is set to A, thehysteresis time is A x 10 ms

GUI Value Range:1~6000 Actual Value Range:10~60000

Default Value:64

DlDcccRateThd

BSC6900 SET UDCCC(Optional) Meaning:For a BE service that has a lowmaximum rate, the DCCC algorithm is notobviously effective yet it increases algorithmprocessing. Thus, the traffic-based DCCCalgorithm is applied to BE services whosemaximum DL rate is greater than the threshold

GUI Value Range:D8, D16, D32, D64, D128,D144, D256, D384















































































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DCCC 7 Parameters



7-9

Actual Value Range:8, 16, 32, 64, 128, 144,256, 384

Default Value:D64

DlFullCvrRate BSC6900 ADDUCELLDCCC(Optional)


Meaning:Maximum DL rate during networkplanning when coverage of the entire cell isensured. When the DL TCP is limited, thecurrent rate is reduced to the full coverage rateif the current rate is greater than the fullcoverage rate. For a BE service that has a lowmaximum rate, the DCCC algorithm is notobviously effective yet it increases algorithmprocessing. Thus, the DCCC algorithm isapplied to BE services whose maximum DLrate is greater than the threshold



Default Value:D64

DlMidRateCalc BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherautomatic or manual mode is used for 3-stepadjustment of the DL intermediate rate

GUI Value Range:AUTO_CALC,HAND_APPOINT

Actual Value Range:0, 1

Default Value:HAND_APPOINT

DlMidRateThd BSC6900 SET UDCCC(Mandatory) Meaning:Threshold of the DL intermediate ratewhen the 3-step mode is used for DL rateadjustment and the manual mode is used forDL intermediate rate adjustment

GUI Value Range:D16, D32, D64, D128, D144,D256, D384

Actual Value Range:16, 32, 64, 128, 144, 256,384

Default Value:D128

DlRateDnAdjLevel BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherthe DL rate is lowered to the minimum rate inone step or two steps for BE service set up onDCH in downlink

GUI Value Range:2_Rates, 3_Rates

Actual Value Range:2_Rates, 3_Rates

Default Value:3_Rates

DlRateUpAdjLevel

BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherthe DL rate is raised to the maximum rate inone step or two steps for BE service set up onDCH in downlink












































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DCCC 7 Parameters



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DraSwitch BSC6900 SETUCORRMALGOSWITCH(Optional)

Meaning:Dynamic resource allocation switchgroup.

1) DRA_AQM_SWITCH: When the switch ison, the active queue management algorithm isused for the RNC.

2)DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH: When the switch is on, the TTI dynamicadjustment algorithm for admission CE-basedBE services applies to the UE with the ULenhanced L2 feature. This parameter is validwhen

DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH(DraSwitch) is set to ON.

3)DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH: When the switch is on, the TTI dynamicadjustment algorithm is supported foradmission CE-based BE services.

4)DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH: When the switch is on, the TTI dynamicadjustment algorithm for coverage-based BEservices applies to the UE with the ULenhanced L2 feature. This parameter is validwhenDRA_BASE_COVER_BE_TTI_RECFG_SWITCH(DraSwitch) is set to ON.

5)DRA_BASE_COVER_BE_TTI_RECFG_SWITCH: When the switch is on, the TTI dynamicadjustment algorithm is supported forcoverage-based BE services.

6)DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH

: When the switch is on, the TTI dynamicadjustment algorithm for differentiation-basedBE services applies to the UE with the ULenhanced L2 feature. This parameter is validwhenDRA_BASE_RES_BE_TTI_RECFG_SWITCH(DraSwitch) is set to ON.

7)DRA_BASE_RES_BE_TTI_RECFG_SWITCH:When the switch is on, the TTI dynamicadjustment algorithm is supported fordifferentiation-based BE services.

8) DRA_DCCC_SWITCH: When the switch is













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7-11

on, the dynamic channel reconfigurationcontrol algorithm is used for the RNC.

9)DRA_HSDPA_DL_FLOW_CONTROL_SWITC

H: When the switch is on, flow control isenabled for HSDPA services in AM mode.

10) DRA_HSDPA_STATE_TRANS_SWITCH:When the switch is on, the status of the UERRC that carrying HSDPA services can bechanged to CELL_FACH at the RNC. If a PSBE service is carried over the HS-DSCH, theswitch PS_BE_STATE_TRANS_SWITCHshould be on simultaneously. If a PS real-timeservice is carried over the HS-DSCH, theswitchPS_NON_BE_STATE_TRANS_SWITCH

should be on simultaneously.11) DRA_HSUPA_DCCC_SWITCH: When theswitch is on, the DCCC algorithm is used forHSUPA. The DCCC switch must be also onbefore this switch takes effect.

12) DRA_HSUPA_STATE_TRANS_SWITCH:When the switch is on, the status of the UERRC that carrying HSUPA services can bechanged to CELL_FACH at the RNC. If a PSBE service is carried over the E-DCH, theswitch PS_BE_STATE_TRANS_SWITCHshould be on simultaneously. If a PS real-time

service is carried over the E-DCH, the switchPS_NON_BE_STATE_TRANS_SWITCHshould be on simultaneously.

13) DRA_IP_SERVICE_QOS_SWITCH:Switch of the algorithm for increasing thequality of subscribed services. When thisparameter is set to ON, the service priorityweight of the subscriber whose key parameters(IP Address, IP Port, and IP Protocol Type)match the specified ones can be adjusted. Inthis way, the QoS is improved.

14) DRA_PS_BE_STATE_TRANS_SWITCH:When the switch is on, UE RRC statustransition(CELL_FACH/CELL_PCH/URA_PCH) isallowed at the RNC.

15)DRA_PS_NON_BE_STATE_TRANS_SWITCH: When the switch is on, the status of the UERRC that carrying real-time services can bechanged to CELL_FACH at the RNC.

16)DRA_R99_DL_FLOW_CONTROL_SWITCH:

Under a poor radio environment, the QoS of



WCDMA RAN

DCCC 7 Parameters



7-12

high speed services drops considerably andthe TX power is overly high. In this case, theRNC can set restrictions on certaintransmission formats based on thetransmission quality, thus lowering traffic speed

and TX power. When the switch is on, the R99downlink flow control function is enabled.

17) DRA_THROUGHPUT_DCCC_SWITCH:When the switch is on, the DCCC based ontraffic statistics is supported over the DCH.

18) DRA_VOICE_SAVE_CE_SWITCH: whenthe switch is on, the TTI selection based on thevoice service type (including VoIP and CS overHSPA) is supported when the service is initiallyestablished.

19) DRA_VOICE_TTI_RECFG_SWITCH:

when the switch is on, the TTI adjustmentbased on the voice service type (including VoIPand CS over HSPA) is supported

GUI Value Range:DRA_AQM_SWITCH,DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,DRA_BASE_COVER_BE_TTI_RECFG_SWITCH,

DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,DRA_BASE_RES_BE_TTI_RECFG_SWITCH,DRA_DCCC_SWITCH,DRA_HSDPA_DL_FLOW_CONTROL_SWITCH, DRA_HSDPA_STATE_TRANS_SWITCH,DRA_HSUPA_DCCC_SWITCH,DRA_HSUPA_STATE_TRANS_SWITCH,DRA_IP_SERVICE_QOS_SWITCH,DRA_PS_BE_STATE_TRANS_SWITCH,DRA_PS_NON_BE_STATE_TRANS_SWITCH,

DRA_R99_DL_FLOW_CONTROL_SWITCH,DRA_THROUGHPUT_DCCC_SWITCH,DRA_VOICE_SAVE_CE_SWITCH,DRA_VOICE_TTI_RECFG_SWITCH

Actual Value Range:DRA_AQM_SWITCH,DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,DRA_BASE_COVER_BE_TTI_RECFG_SWIT

CH,



WCDMA RAN

DCCC 7 Parameters



7-13

DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,DRA_BASE_RES_BE_TTI_RECFG_SWITCH,DRA_DCCC_SWITCH,DRA_HSDPA_DL_FLOW_CONTROL_SWITC

H, DRA_HSDPA_STATE_TRANS_SWITCH,DRA_HSUPA_DCCC_SWITCH,DRA_HSUPA_STATE_TRANS_SWITCH,DRA_IP_SERVICE_QOS_SWITCH,DRA_PS_BE_STATE_TRANS_SWITCH,DRA_PS_NON_BE_STATE_TRANS_SWITCH,DRA_R99_DL_FLOW_CONTROL_SWITCH,DRA_THROUGHPUT_DCCC_SWITCH,DRA_VOICE_SAVE_CE_SWITCH,DRA_VOICE_TTI_RECFG_SWITCH

Default Value:None

E2FThrouMeasPeriod

BSC6900 SETUUESTATETRANS(Optional)

Meaning:Period of E-DCH throughput ratiomeasurement. This parameter specifies theperiod of E-DCH throughput ratiomeasurement. The throughput ratio over theE-DCH is periodically measured to implementstate transition from E-DCH to FACH andDCCC algorithm on EDCH



Default Value:30

E2FThrouThd BSC6900 SETUUESTATETRANS(Optional)

Meaning:This parameter is used to checkwhether the UE in the low activity state. If theUE is on the E-DCH channel, the low activitycounter increases by 1 every time throughputratio event 4B is reported



Default Value:8

EdchPendingTime4A

BSC6900 ADDUTYPRABDCCCMC(Option

al) MODUTYPRABDCCCMC(Optional)

Meaning:Number of measurement periodsduring which no event 4A related to EDCH

throughput is reported again after such anevent 4A is reported. This parameter is set toavoid too many channel reconfigurationoperations. The larger the value of thisparameter, the longer the time from the lastreporting of throughput-related event 4A onEDCH to the next reporting, and the smaller thepossibility of triggering throughput-relatedevent 4A on EDCH



Default Value:16




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DCCC 7 Parameters



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EdchPendingTime4B


MOD

UTYPRABDCCCMC(Optional)

Meaning:Number of measurement periodsduring which no event 4B related to EDCHthroughput is reported again after such anevent 4B is reported. This parameter is set to

avoid too many channel reconfigurationoperations. The larger the value of thisparameter, the longer the time from the lastreporting of throughput-related event 4B onEDCH to the next reporting, and the smaller thepossibility of triggering throughput-relatedevent 4B on EDCH



Default Value:16

EdchRateAdju

stSet

BSC6900 SET

UEDCHRATEADJUSTSET(Optional)

Meaning:HSUPA traffic uplink rate adjustment

set. It contains rates for rate adjustment foruplink channel of HSUPA traffic and is used inthe HSUPA DCCC algorithm

GUI Value Range:RATE_8KBPS,RATE_16KBPS, RATE_32KBPS,RATE_64KBPS, RATE_128KBPS,RATE_144KBPS, RATE_256KBPS,RATE_384KBPS, RATE_608KBPS,RATE_1280KBPS, RATE_2048KBPS,RATE_2720KBPS, RATE_5440KBPS,RATE_11480KBPS

Actual Value Range:8, 16, 32, 64, 128, 144,256, 384, 608, 1280, 2048, 2720, 5440, 11480

Default Value:None

EdchTimetoTrigger4A



Meaning:Number of measurement periodsf rom the moment when the E-DCH rate fallsbelow the 4A threshold to the moment whenthe throughput-related event 4A on E-DCH istriggered. This parameter is set to avoidunnecessary reports triggered by E-DCHthroughput fluctuation. The larger the value ofthis parameter, the longer the required durationof the E-DCH throughput keeping below the 4A

threshold, and the smaller the possibility oftriggering throughput-related event 4A onE-DCH



Default Value:2

EdchTimetoTrigger4B


MOD


Meaning:Number of measurement periodsf rom the moment when the E-DCH rate fallsbelow the 4B threshold to the moment whenthe throughput-related event 4B on E-DCH is

triggered. This parameter is set to avoidunnecessary reports triggered by E-DCH















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WCDMA RAN

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al) throughput fluctuation. The larger the value ofthis parameter, the longer the required durationof the E-DCH throughput keeping below the 4Bthreshold, and the smaller the possibility oftriggering throughput-related event 4B on

E-DCH



Default Value:2

Event4aThd BSC6900 ADDUTYPRABDCCCMC(Optional)


Meaning:Threshold of triggering event 4Arelated to DCH traffic volume, that is, the upperlimit of the traffic volume. The larger the valueof this parameter, the smaller the possibility oftriggering traffic-related event 4A on DCH

GUI Value Range:D16, D32, D64, D128, D256,

D512, D1024, D2K, D3K, D4K, D6K, D8K,D12K, D16K, D24K, D32K, D48K, D64K,D96K, D128K, D192K, D256K, D384K, D512K,D768K

Actual Value Range:16, 32, 64, 128, 256, 512,1024, 2K, 3K, 4K, 6K, 8K, 12K, 16K, 24K, 32K,48K, 64K, 96K, 128K, 192K, 256K, 384K,512K, 768K

Default Value:D1024

Event4bThd BSC6900 ADDUTYPRABDCCCMC(Manda

tory)


Meaning:Threshold of triggering event 4Brelated to DCH traffic volume, that is, the lower

limit of the traffic volume. The larger the valueof this parameter, the larger the possibility oftriggering traffic-related event 4B on DCH

GUI Value Range:D8, D16, D32, D64, D128,D256, D512, D1024, D2K, D3K, D4K, D6K,D8K, D12K, D16K, D24K, D32K, D48K, D64K,D96K, D128K, D192K, D256K, D384K, D512K

Actual Value Range:8, 16, 32, 64, 128, 256,512, 1024, 2K, 3K, 4K, 6K, 8K, 12K, 16K, 24K,32K, 48K, 64K, 96K, 128K, 192K, 256K, 384K,512K

Default Value:None

EventAThred BSC6900 ADDUTYPRABRLC(Optional)

MODUTYPRABRLC(Optional)

Meaning:Threshold of event A, that is, theupper limit of RLC retransmission ratio. Whenthe monitored RLC retransmission ratioexceeds this threshold and triggers the event A, it indicates that the quality of the radio link ispoor, and flow control measures need to betaken to reduce the RLC throughput



Default Value:160

























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DCCC 7 Parameters



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FailTimeTh BSC6900 SET UDCCC(Optional) Meaning:This parameter specifies thethreshold of allowed times of rate increaseconsecutive failure within a certain monitoringperiod. If the times of failure is beyond this

threshold, subsequent rate increase is notallowed even if the 4A measurement report isreceived



Default Value:4

HangBlockNum5A

BSC6900 ADDUTYPRABQUALITYMEAS(Mandatory)

MODUTYPRABQUALITYMEAS(Optional)

Meaning:When event 5A is triggered, apending timer is started, during which event 5Awill not be reported before the specifiednumber is reached. This parameter can controlthe frequency for reporting event 5A



Default Value:None

HsupaDcccStg BSC6900 SET UDCCC(Optional) Meaning:Strategy of the UE for rate adjustmentover the EDCH.RATE_UP_AND_DOWN_ON_EDCH indicatesthat the rate over the EDCH can be raised orlowered. RATE_UP_ONLY_ON_EDCHindicates that the rate over the EDCH can onlybe raised. When UE is in low activity state, it isno need to degrade the traffic rate to thethreshold for HSUPA DCCC before statetransition to CELL_FACH. That means UE cantransit to CELL_FACH state at any rate overthe EDCH

GUI ValueRange:RATE_UP_AND_DOWN_ON_EDCH,RATE_UP_ONLY_ON_EDCH

Actual ValueRange:RATE_UP_AND_DOWN_ON_EDCH,RATE_UP_ONLY_ON_EDCH

Default

Value:RATE_UP_AND_DOWN_ON_EDCH

MinForBeE BSC6900 ADDUCELLQUALITYMEAS(Mandatory)

MODUCELLQUALITYMEAS(Mandatory)

Meaning:This parameter is valid when thecorresponding parameter related to thereporting period unit for the event E of BEservice is set to MIN. The DL code TX power isreported periodically after the event Ea isreported. This parameter specifies thereporting period



Default Value:None








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WCDMA RAN

DCCC 7 Parameters



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MinForBeF BSC6900 ADDUCELLQUALITYMEAS(Mandatory)

MOD

UCELLQUALITYMEAS(Mandatory)

Meaning:This parameter is valid when thecorresponding parameter related to thereporting period unit for the event F of BEservice is set to MIN. The DL code TX power is

reported periodically after the event Fa isreported. This parameter specifies thereporting period



Default Value:None

MoniTimeLen BSC6900 SET UDCCC(Optional) Meaning:Length of the period within which thetimes of consecutive failure to increase the rateof a BE service is monitored. Increase of theBE service rate is triggered by 4Ameasurement reports. If the times exceeds the

DCCC Rate Up Fail Time Threshold, theDCCC Rate Up Fail Penalty Timer will bestarted, and 4A report will not be processeduntil DCCC Rate Up Fail Penalty Timer expires



Default Value:60

MoniterPrd BSC6900 ADDUTYPRABRLC(Optional)

MOD

UTYPRABRLC(Optional)

Meaning:Sampling period of the RLCretransmission ratio monitoring



Default Value:1000

PendingTime4 A



Meaning:Number of measurement periodsduring which no event 4A related to DCH trafficvolume is reported again after such an event4A is reported. This parameter is set to avoidtoo many channel reconfiguration operations.The larger the value of this parameter, thelonger the time from the last reporting of event4A related to DCH traffic volume to the nextreporting, and the smaller the possibility of

triggering such eventGUI Value Range:D250, D500, D1000, D2000,D4000, D8000, D16000

Actual Value Range:250, 500, 1000, 2000,4000, 8000, 16000

Default Value:D4000

PendingTime4B


MOD


Meaning:Number of measurement periodsduring which no event 4B related to DCH trafficvolume is reported again after such an event4B is reported. This parameter is set to avoidtoo many channel reconfiguration operations.

The larger the value of this parameter, the












































































WCDMA RAN

DCCC 7 Parameters



7-18

al) longer the time from the last reporting of event4B related to DCH traffic volume to the nextreporting, and the smaller the possibility oftriggering such event

GUI Value Range:D250, D500, D1000, D2000,D4000, D8000, D16000

Actual Value Range:250, 500, 1000, 2000,4000, 8000, 16000

Default Value:D4000

SrncBeDlRlcQosSwitch

BSC6900 SET UQOSACT(Optional) Meaning:When the parameter is set to YES,QoS control for DL BE services is based on theTCP and RLC retransmission. When theparameter is set to NO, QoS control for DL BEservices is based on the TCP. In bothsituations, QoS control is not performed across

the Iur interfaceGUI Value Range:NO, YES


Default Value:YES

StaBlkNum5A BSC6900 ADDUTYPRABQUALITYMEAS(Mandatory)


Meaning:When a DCH is set up, the UE startscounting the number of faulty CRCs within aspecified sliding window. If the number of faultyCRCs exceeds the specified threshold, event5A is triggered. The length of the slidingwindow is specified by Statistic Block NumberFor 5A Event



Default Value:None

TenMsecForBeE



Meaning:This parameter is valid when thecorresponding parameter related to thereporting period unit for the event E of BEservice is set to TEN_MSEC. The DL code TXpower is reported periodically after the eventEa is reported. This parameter specifies thereporting period. If the parameter is set to A,

the reporting period is A x 10 msGUI Value Range:1~6000


Default Value:480

TenMsecForBeF



Meaning:This parameter is valid when thecorresponding parameter related to thereporting period unit for the event F of BEservice is set to TEN_MSEC. The DL code TXpower is reported periodically after the eventFa is reported. This parameter specifies thereporting period. If the parameter is set to A,

the reporting period is A x 10 ms


































































WCDMA RAN

DCCC 7 Parameters



7-19



Default Value:480

Thd5A BSC6900 ADDUTYPRABQUALITYMEAS(Mandatory)


Meaning:When a DCH is set up, the UE startscounting the number of faulty CRCs within aspecified sliding window. If the number of faultyCRCs exceeds the specified threshold, event5A is triggered. The threshold is Event 5AThreshold



Default Value:None

ThdEa BSC6900 ADDUTYPRABQUALITYMEAS(

Mandatory)


Meaning:If DL code TX power is higher thanthe Ea absolute threshold, event Ea is

triggered. This event triggers DL QoSoperation. This parameter specifies a relativethreshold. Absolute Ea threshold = RL Max DLTX power - ThdEa



Default Value:None

ThdEb BSC6900 ADDUTYPRABQUALITYMEAS(Mandatory)


Meaning:If DL code TX power is lower than theEb absolute threshold, event Eb is triggered.When this event report is received, DL QoSoperation is stopped. This parameter specifiesa relative threshold. Absolute Eb threshold =RL Max DL TX power - ThdEb



Default Value:None

TimeToTrigger A

BSC6900 ADDUTYPRABRLC(Optional)

MODUTYPRABRLC(Optional)

Meaning:Number of consecutive periods duringwhich the percentage of retransmitted RLCPDUs is higher than the threshold of event Abefore event A is triggered



Default Value:2

TimetoTrigger 4A



Meaning:Time from the moment when thetraffic volume on the DCH exceeds the upperthreshold to the moment when thetraffic-related event 4A is triggered. Thisparameter is set to avoid unnecessary reportstriggered by DCH throughput fluctuation. Thelarger the value of this parameter, the longerthe required duration of the DCH throughputkeeping above the 4A threshold, and thesmaller the possibility of triggering




























































































WCDMA RAN

DCCC 7 Parameters



7-20

throughput-related event 4A on DCH

GUI Value Range:D0, D10, D20, D40, D60,D80, D100, D120, D160, D200, D240, D320,D640, D1280, D2560, D5000, D10000,

D15000, D20000, D25000, D30000 Actual Value Range:0, 10, 20, 40, 60, 80, 100,120, 160, 200, 240, 320, 640, 1280, 2560,5000, 10000, 15000, 20000, 25000, 30000

Default Value:None

TimetoTrigger 4B



Meaning:Time from the moment when thetraffic volume on the DCH falls below the lowerthreshold to the moment when thetraffic-related event 4B is triggered. Thisparameter is set to avoid unnecessary reportstriggered by DCH throughput fluctuation. The

larger the value of this parameter, the longerthe required duration of the DCH throughputkeeping below the 4B threshold, and thesmaller the possibility of triggeringthroughput-related event 4B on DCH

GUI Value Range:D0, D10, D20, D40, D60,D80, D100, D120, D160, D200, D240, D320,D640, D1280, D2560, D5000, D10000,D15000, D20000, D25000, D30000

Actual Value Range:0, 10, 20, 40, 60, 80, 100,120, 160, 200, 240, 320, 640, 1280, 2560,5000, 10000, 15000, 20000, 25000, 30000

Default Value:D2560

UlBeTrigTime6 A1



Meaning:Duration when the measured value ofBE keeps fulfilling the 6A1 measurementcondition before the event 6A1 is triggered.The trigger time is used to prevent the suddenchange of the measured value for beingreported

GUI Value Range:D0, D10, D20, D40, D60,D80, D100, D120, D160, D200, D240, D320,D640, D1280, D2560, D5000

Actual Value Range:0, 10, 20, 40, 60, 80, 100,120, 160, 200, 240, 320, 640, 1280, 2560,5000

Default Value:D640

UlBeTrigTime6 A2



Meaning:Duration when the measured value ofBE keeps fulfilling the 6A2 measurementcondition before the event 6A2 is triggered.The trigger time is used to prevent the suddenchange of the measured value for beingreported

GUI Value Range:D0, D10, D20, D40, D60,

D80, D100, D120, D160, D200, D240, D320,






























































WCDMA RAN

DCCC 7 Parameters



7-21

D640, D1280, D2560, D5000


Default Value:D1280

UlBeTrigTime6B1



Meaning:Duration when the measured value ofBE keeps fulfilling the 6B1 measurementcondition before the event 6B1 is triggered.The trigger time is used to prevent the suddenchange of the measured value for beingreported


Actual Value Range:0, 10, 20, 40, 60, 80, 100,

120, 160, 200, 240, 320, 640, 1280, 2560,5000

Default Value:D2560

UlBeTrigTime6B2



Meaning:Duration when the measured value ofBE keeps fulfilling the 6B2 measurementcondition before the event 6B2 is triggered.The trigger time is used to prevent the suddenchange of the measured value for beingreported

GUI Value Range:D0, D10, D20, D40, D60,D80, D100, D120, D160, D200, D240, D320,

D640, D1280, D2560, D5000


Default Value:D1280

UlBeTrigTime6D


MODUCELLQUALITYMEAS(Opti

onal)

Meaning:Duration when the measured value ofBE keeps fulfilling the 6D measurementcondition before the event 6D is triggered. Thetrigger time is used to prevent the suddenchange of the measured value for beingreported



Default Value:D240

UlDcccRateThd

BSC6900 SET UDCCC(Optional) Meaning:For a BE service that has a lowmaximum rate, the DCCC algorithm is notobviously effective yet it increases algorithm

processing. Thus, the traffic-based DCCC





































































WCDMA RAN

DCCC 7 Parameters



7-22

algorithm is applied to BE services whosemaximum UL rate is greater than the threshold



Default Value:D64

UlFullCvrRate BSC6900 ADDUCELLDCCC(Optional)


Meaning:Maximum UL rate when coverage ofthe entire cell is ensured under certain load.For a BE service that has a low maximum rate,the DCCC algorithm is not obviously effectiveyet it increases algorithm processing. Thus, thecoverage-based DCCC algorithm is applied toBE services whose maximum UL rate isgreater than the threshold



Default Value:D64

UlMidRateCalc BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherthe uplink intermediate rate uses automatic ormanual mode when using 3-step adjustment

GUI Value Range:AUTO_CALC,HAND_APPOINT

Actual Value Range:0, 1Default Value:HAND_APPOINT

UlMidRateThd BSC6900 SET UDCCC(Mandatory) Meaning:Threshold of the UL intermediate ratewhen the 3-step mode is used for UL rateadjustment and the manual mode is used forUL intermediate rate adjustment

GUI Value Range:D16, D32, D64, D128, D144,D256, D384

Actual Value Range:16, 32, 64, 128, 144, 256,384

Default Value:D128UlRateDnAdjLevel

BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherthe UL rate is lowered to the minimum rate inone step or two steps for BE service set up onDCH in uplink




UlRateUpAdjLevel

BSC6900 SET UDCCC(Optional) Meaning:This parameter determines whetherthe UL rate is raised to the maximum rate in

one step or two steps for BE service set up on












































WCDMA RAN

DCCC 7 Parameters



7-23

DCH in uplink






WCDMA RAN

DCCC 8 Counters



8-1

8 Counters

Table 8-1 Counter description

CounterID Counter Name Counter Description Feature ID Feature Name

67180615 VS.RRC.MrRpt.4A Number of Uplink Event4A Measurement Reportsfor Cell

WRFD-021101 Dynamic ChannelConfiguration Control(DCCC)

67180616 VS.RRC.MrRpt.4B Number of Uplink Event4B Measurement Reportsfor Cell


67180675 VS.DCCC.Succ.F2D Number of SuccessfulChannel Conversions fromFACH to DCH for Cell

WRFD-021101

WRFD-020202

Dynamic ChannelConfiguration Control(DCCC)

Intra RNC SoftHandover

67180676 VS.DCCC.Succ.D2F Number of SuccessfulChannel Conversions fromDCHs to FACHs for Cell

WRFD-021101

WRFD-020202



67184359 VS.DCCC.AttUpsizing.E2E.Thr

Number of ULEDCH-EDCH DCCCUpsizing Attempts Based

on the Throughput or RLCBO for Cell

WRFD-01061208 HSUPA DCCC

67190706 VS.DCCC.D2C.Att Number of DynamicChannel Conversion Attempts from DCHs toFACHs for Cell


67190707 VS.DCCC.C2D.Att Number of DynamicChannel Conversion Attempts from FACHs toDCHs for Cell


67192470 VS.HSUPA.E2D.Succ Number of SuccessfulChannel Conversions fromEDCH to DCH for HSUPAService for Cell


67192471 VS.HSUPA.E2D.Att Number of ChannelConversion Attempts fromEDCH to DCH for HSUPAService for Cell


67192476 VS.HSUPA.D2E.Succ Number of SuccessfulChannel Conversions fromDCH to EDCH for HSUPA

Service for Cell


http://localhost/var/www/apps/conversion/tmp/RNCCounterHtml/mbsc/m-perf/Mt-10083.html
































WCDMA RAN

DCCC 8 Counters



8-2

67192477 VS.HSUPA.D2E.Att Number of ChannelConversion Attempts fromDCH to EDCH for HSUPAService for Cell


67192480 VS.HSUPA.E2F.Att Number of ChannelConversion Attempts fromEDCH to FACH forHSUPA Service for Cell


67192481 VS.HSUPA.E2F.Succ Number of SuccessfulChannel Conversions fromEDCH to FACH forHSUPA Service for Cell


67192482 VS.HSUPA.F2E.Att Number of ChannelConversion Attempts fromFACH to EDCH forHSUPA Service for Cell


67192483 VS.HSUPA.F2E.Succ Number of SuccessfulChannel Conversions fromFACH to EDCH forHSUPA Service for Cell


67192583 VS.DCCC.Att.F2P Number of State Transfer Attempts fromCELL_FACH toCELL_PCH for Cell

WRFD-021101

WRFD-020202



67192584 VS.DCCC.Succ.F2P Number of SuccessfulState Transfers fromCELL_FACH toCELL_PCH for Cell

WRFD-021101

WRFD-020202



67192585 VS.DCCC.AttUpsizing.DL.Thr

Number of DL DCH DCCCUpsizing Attempts Basedon Throughput or RLC BOfor Cell


67192586 VS.DCCC.SuccUpsizin

g.DL.Thr

Number of Successful DL

DCH DCCC UpsizingsBased on Throughput orRLC BO for Cell

WRFD-021101 Dynamic Channel

Configuration Control(DCCC)

67192587 VS.DCCC.AttDownsizing.DL.Thr

Number of Downlink DCHDCCC Downsizing Attempts Based onThroughput or RLC BO forCell


































WCDMA RAN

DCCC 8 Counters



8-3

67192588 VS.DCCC.SuccDownsizing.DL.Thr

Number of Successful DLDCH DCCC DownsizingsBased on Throughput orRLC BO for Cell


67192589 VS.DCCC.AttDownsizing.DL.Cov

Number of Downlink DCHDCCC Downsizing Attempts Based onCoverage (QoS) for Cell


67192590 VS.DCCC.SuccDownsizing.DL.Cov

Number of Successful DLDCH DCCC DownsizingsBased on Coverage (QoS)for Cell


67192591 VS.DCCC.AttDownsizing.DL.Cong

Number of Downlink DCHDCCC Downsizing Attempts Based onResource Congestion Algorithm for Cell


67192592 VS.DCCC.SuccDownsizing.DL.Cong

Number of Successful DLDCH DCCC DownsizingsBased on ResourceCongestion Algorithm forCell


67192593 VS.DCCC.AttUpsizing.UL.Thr

Number of UL DCH DCCCUpsizing Attempts Basedon Throughput or RLC BO

for Cell


67192594 VS.DCCC.SuccUpsizing.UL.Thr

Number of Successful ULDCH DCCC UpsizingsBased on Throughput orRLC BO for Cell


67192595 VS.DCCC.AttDownsizing.UL.Thr

Number of UL DCH DCCCDownsizing AttemptsBased on the Throughputor RLC BO for Cell


67192596 VS.DCCC.SuccDownsizing.UL.Thr

Number of Successful ULDCH DCCC DownsizingsBased on Throughput orRLC BO for Cell


67192652 VS.Utran.MrRpt.4A Number of Downlink Event4A Measurement Reportsfor Cell


67192653 VS.Utran.MrRpt.4B Number of Downlink Event4B Measurement Reportsfor Cell





































WCDMA RAN

DCCC 8 Counters



8-4

67196026 VS.DCCC.AttDownsizing.E2E.Thr

Number of ULEDCH-EDCH DCCCDownsizing AttemptsBased on the Throughput

or RLC BO for Cell


67196027 VS.DCCC.SuccUpsizing.E2E.Thr

Number of Successful ULEDCH-EDCH DCCCUpsizings Based on theThroughput or RLC BO forCell


67196028 VS.DCCC.SuccDownsizing.E2E.Thr

Number of Successful ULEDCH-EDCH DCCCDownsizings Based on theThroughput or RLC BO forCell


67196032 VS.DCCC.AttDownsizing.UL.Cov

Number of UL DCH DCCCDownsizing AttemptsBased on the Coverage(QoS) for Cell


67196033 VS.DCCC.SuccDownsizing.UL.Cov

Number of Successful ULDCH DCCC DownsizingsBased on Coverage (QoS)for Cell


67196034 VS.DCCC.AttDownsizing.UL.Cong

Number of UL DCH DCCCDownsizing Attempts

Based on the ResourceCongestion Algorithm forCell

WRFD-021101 Dynamic ChannelConfiguration Control

(DCCC)

67196035 VS.DCCC.SuccDownsizing.UL.Cong

Number of Successful ULDCH DCCC DownsizingsBased on ResourceCongestion Algorithm forCell


67196302 VS.RAB.NormRel.PS.0kbps.Timeout

Number of PS RABs at 0kbit/s Released for Failureto Rate up in the Best Cell


67196303 VS.RB.RateDown.To.0kbps

Number of Times that PSRate Downgrades to 0Kbit/s in the Best Cell


67196305 VS.RAB.NormRel.PS.0kbps.Timeout.RNC

Number of PS RABs of 0kbit/s Released for Failedto Rate up for RNC


































WCDMA RAN

DCCC 8 Counters



8-5

73403799 VS.DCCC.P2F.Att Number of Attempts totransfer state fromCELL_PCH toCELL_FACH for cell

WRFD-010202

WRFD-021101

UE State in ConnectedMode (CELL-DCH

CELL-PCH

URA-PCH

CELL-FACH)


73403800 VS.DCCC.P2F.Succ Number of Successfulstate transfer fromCELL_PCH toCELL_FACH for cell

WRFD-010202

WRFD-021101


CELL-PCH

URA-PCH

CELL-FACH)


73403801 VS.DCCC.P2URAP Number of state transferfrom CELL_PCH toURA_PCH for cell

WRFD-010202

WRFD-021101


CELL-PCH

URA-PCH

CELL-FACH)


73403802 VS.DCCC.URAP2F.Att Number of Attempts totransfer state fromURA_PCH to CELL_FACHfor cell

WRFD-010202

WRFD-021101


CELL-PCH

URA-PCH

CELL-FACH)


73403803 VS.DCCC.URAP2F.Su

cc

Number of successful

state transfer fromURA_PCH to CELL_FACHin the best cell

WRFD-010202

WRFD-021101

UE State in Connected

Mode (CELL-DCHCELL-PCH

URA-PCH

CELL-FACH)



















WCDMA RAN

DCCC 8 Counters



8-6

73421937 VS.RRC.AttConRel.SCRI.DF2P.NoReply.RNC

Number of RRC ReleasesDue to Failure in the UEState Transition toCELL_PCH Triggered by

Signaling ConnectionRelease Indication







WCDMA RAN

DCCC 9 Glossary



9-1

9 Glossary

For the acronyms, abbreviations, terms, and definitions, see the Glossary .

http://localhost/var/www/apps/conversion/tmp/scratch_3/Glossary.htm






WCDMA RAN

DCCC 10 Reference Documents

10 Reference Documents

[1] 3GPP TS 26.201: Speech codec speech processing functions; Adaptive Multi-Rate - Wideband(AMR-WB) speech codec; Frame structure

[2] 3GPP TS 28.062: Inband Tandem Free Operation (TFO) of speech codecs; Service description;Stage 3

[3] Load Control Feature Parameter Description

[4] HSUPA Feature Parameter Description

[5] Handover Feature Parameter Description

http://localhost/var/www/apps/conversion/tmp/scratch_3/Load%20Control.htm




http://localhost/var/www/apps/conversion/tmp/scratch_3/Handover.htm



