Adaptive RACH(RAN16.0_Draft A).pdf

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WCDMA RAN

Adaptive RACH Feature Parameter

Description

Issue Draft A

Date 2014-01-20

HUAWEI TECHNOLOGIES CO., LTD.


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Copyright Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks 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 contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, 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, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue Draft A (2014-01-20) Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.

i
http://www.huawei.com/


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Contents

1 Introduction....................................................................................................................................1

1.1 Scope..............................................................................................................................................................................1

1.2 Intended Audience..........................................................................................................................................................1

1.3 Change History...............................................................................................................................................................1

2 Overview.........................................................................................................................................2

2.1 Introduction....................................................................................................................................................................2

2.2 Benefits...........................................................................................................................................................................2

3 Technical Description...................................................................................................................3

4 Related Features.............................................................................................................................5

5 NetworkImpact.............................................................................................................................6

6 Engineering Guidelines...............................................................................................................7

6.1 When to Use Adaptive RACH........................................................................................................................................7

6.2 Required Information.....................................................................................................................................................7

6.3 Feature Deployment.......................................................................................................................................................7

6.3.1 Requirements...............................................................................................................................................................7

6.3.2 Data Preparation..........................................................................................................................................................8

6.3.3 Activation..................................................................................................................................................................15

6.3.3.1 Activation (Using MML Commands)....................................................................................................................15

6.3.3.2 MML Command Examples....................................................................................................................................15

6.3.3.3 Activation (Using the CME)...................................................................................................................................16

6.3.4 Activation Observation..............................................................................................................................................176.3.5 Deactivation...............................................................................................................................................................17

6.3.5.1 Deactivation (Using MML Commands).................................................................................................................17

6.3.5.2 MML Command Examples....................................................................................................................................17

6.3.5.3 Deactivation (Using the CME)...............................................................................................................................17

6.4 Performance Monitoring...............................................................................................................................................18

6.5 ParameterOptimization................................................................................................................................................18

6.6 Troubleshooting............................................................................................................................................................18

7 Parameters.....................................................................................................................................19

8 Counters........................................................................................................................................78

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9 Glossary.........................................................................................................................................79

10 Reference Documents...............................................................................................................80

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1Introduction

1.1 Scope

This document describes WRFD-151201 Adaptive RACH feature, including its technical

principles, related features, network impact, and engineering guidelines.

1.2 Intended Audience

This document is intended for personnel who:

l Need to understand the features described herein

l Work with Huawei products

1.3 Change History

This section provides information about the changes in different document versions. There are

two types of changes, which are defined as follows:

l Feature change

Changes in features of a specific product version

l Editorial change

Changes in wording or addition of information that was not described in the earlier version

Draft A (2014-01-20)

This document is created for RAN16.0.

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2Overview

2.1 Introduction

When a large number of UEs simultaneously initiate a random access procedure in a cell, the

received total wideband power (RTWP) of this cell becomes extremely high. To reduce the

RTWP in this scenario, Huawei offers Adaptive RACH. Adaptive RACH enables the RNC to

dynamically adjust the settings of random access parameters for a cell based on the uplink power

load and number of acknowledged random accesses in a specified time. This feature can reduce

a cell's RTWP and increase its capacity.

2.2 BenefitsWhen the RTWP of a cell is high due to a large number of random accesses, Adaptive RACH

helps reduce the RTWP by 0.3 dB to 0.5 dB.

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3Technical DescriptionWhen the RTWP of a cell is high due to a large number of random accesses, Adaptive RACH

enables the RNC to dynamically adjust the settings of random access parameters based on the

uplink power load and number of acknowledged random accesses. The RNC broadcasts the new

settings of random access parameters to UEs. The random access parameters include the constant

for calculating the initial transmit power, ramping step for random access preambles, and

maximum number of preamble retransmissions.

The RNC measures the number of acknowledged random accesses in a cell when the

ACK_PRACH_PREAM_MEAS check box under the NBMLdcAlgoSwitchparameter in the

ADD UCELLALGOSWITCHcommand is selected.

Adaptive RACH is activated when the ADAPTIVE_RACHand

ACK_PRACH_PREAM_MEAS check boxes under the NBMLdcAlgoSwitchparameter in

the ADD UCELLALGOSWITCHcommand are selected.

The RNC dynamically adjusts the settings of the random access parameters as follows:

l When the cell uplink load is greater than or equal to the value of the OptiStartLoadState

parameter and the number of acknowledged random accesses in a cell is greater than or

equal to the value of the RandomAccessCongestThdparameter, the RNC broadcasts the

optimized settings of random access parameters (OptiConstantvalue,

OptiPowerRampStep, and OptiPreambleRetransMax) to UEs.

l When the number of acknowledged random accesses is less than or equal to the value of

the RandomAccessClearThdparameter, the RNC broadcasts the original settings of

random access parameters (Constantvalue, PowerRampStep, and

PreambleRetransMax) to UEs.

Compared with the original settings, the optimized settings reduce the value of the constant for

calculating the initial transmit power, lower the ramping step for random access preambles, and

increase the maximum number of preamble retransmissions. Therefore, using the optimized

settings reduces the interference to uplink channels and ultimately reduces the cell RTWP when

the cell uplink load is greater than the value of the OptiStartLoadState parameter and the number

of acknowledged random accesses is greater than the value of the RandomAccessCongestThd

parameter. When the number of acknowledged random accesses becomes less than or equal to

the value of the RandomAccessClearThdparameter, using the optimized setting increases the

delay during random access.

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For details about the impact of the constant for calculating the initial transmit power, ramping

step for random access preambles, and maximum number of preamble retransmissions on the

random access procedure, seePower Control Feature Parameter Description.

For details about how to determine whether a cell is congested, seeLoad Control Feature

Parameter Description.

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4Related FeaturesPrerequisite Features

None

Mutually Exclusive Features

None

Impacted Features

None

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5Network ImpactSystem Capacity

When the RTWP of a cell is high due to a large number of random accesses, Adaptive RACH

helps reduce the RTWP by 0.3 dB to 0.5 dB.

However, Adaptive RACH also increases delay during random access.

Network Performance

None

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6Engineering Guidelines

6.1 When to Use Adaptive RACH

This feature is recommended for a cell with high RTWP due to a large number of random

accesses.

This feature takes effect after activation if the cell meets the following conditions:

l The uplink power load is greater than the value of the OptiStartLoadStateparameter. This

parameter is set to 50% by default.

l The average number of acknowledged random accesses (indicated by the

VS.Random.Access.ACKNum.Mean counter) is greater than the value of theRandomAccessCongestThdparameter. This parameter is set to 20 by default.

6.2 Required Information

The information to be collected for activation is as follows:

l VS.MeanRTWP: average RTWP of a cell. This counter is used to calculate the uplink power

load of a cell.

l VS.Random.Access.ACKNum.Mean: average number of acknowledged random accesses

in a cell.

The RNC measures the number of acknowledged random accesses in a cell when the

ACK_PRACH_PREAM_MEAS check box under the NBMLdcAlgoSwitch parameter

in the ADD UCELLALGOSWITCHcommand is selected.

6.3 Feature Deployment

6.3.1 Requirements

l Operating environment and hardware

The NodeB software version must be RAN15.1 or later.

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The BTS3812E, BTS3812A, and BTS3812AE do not support this feature.

The DBS3800 does not support this feature.

For 3900 series base stations configured with a WBBPa board, cells carried on this WBBPa

board do not support this feature.

l Other NEs

None

l License

The license "Adaptive RACH" on the RNC side has been activated. For details about the license

items and how to activate the license, see License Management Feature Parameter Description.

The following table lists detailed information about the license.

Feature ID Feature Name License

Control Item

NE Sales Unit

WRFD-151201 Adaptive

RACH

Adaptive

RACH

RNC Cell

6.3.2 Data Preparation

The following table lists the data to be configured before feature activation.

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Parameter Name Parameter ID Setting Notes Data Source

Optimized Constant

for Initial Transmit

PW Cal

OptiConstantvalue This parameter takes

effect only after the

Adaptive RACHfeature triggers an

adjustment of

random access

parameters. If this

parameter is set to a

large value, the

power used to

transmit the first

PRACH preamble is

high. In this case, the

access delay is short

but the uplink

capacity of the target

cell decreases. If this


small value, the

power used to

transmit the first

PRACH preamble is

low. In this case, the

access delay is long

but the uplink

capacity of the targetcell is not greatly

affected.

BSC internal

planning

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Optimized Max

Random Access

Preamble Retrans

OptiPreambleRe-

transMax

This parameter takes



adjustment of

random access

parameters. If this


large value, some

UEs will increase

their transmit power

and repeatedly

attempt to access the

target cell. In this

case, the interference

from these UEs on

other UEs increases.

If this parameter is

set to a small value,

the UE cannot

increase to the target

value the power used

to transmit

preambles and may

therefore fail to

access the target cell.

BSC internal

planning

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Optimized Power

Increase Step

OptiPowerRamp-

Step

This parameter takes



adjustment of

random access

parameters. If this


large value, the

access process takes

a short time but the

power consumption

in this process is

high. When a large

number of UEs

simultaneously

access a cell, the

uplink load of the cell

may become heavy.

If this parameter is

set to a small value,

the access process

takes a long time but

the power

consumption in this

process is low. Whena large number of

UEs simultaneously

access a cell, the

uplink load of the cell

may not become

heavy.

BSC internal

planning

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Random Access

Resource

Congestion TriggerThre

RandomAccessCon-

gestThd

The larger the value

of this parameter, the

larger the number ofacknowledged

PRACH preambles

required for starting

the Adaptive RACH

feature and the

shorter the time

required for the

optimized settings of

random access

parameters to take

effect. The smaller

the value of this

parameter, the

smaller the number

of acknowledged

PRACH preambles

required for starting

the Adaptive RACH

feature and the

longer the time

required for the


random accessparameters to take

effect.

BSC internal

planning

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Random Access

Resource

Congestion ClearThre

RandomAcces-

sClearThd

The larger the value


larger the number ofacknowledged

PRACH preambles

required for stopping

the Adaptive RACH

feature and the

shorter the time

required for the


random access

parameters to take

effect. The smaller

the value of this

parameter, the

smaller the number

of acknowledged

PRACH preambles

required for stopping

the Adaptive RACH

feature and the

longer the time

required for the


random accessparameters to take

effect.

BSC internal

planning

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Optimized Uplink

Power Load State

OptiStartLoadState The higher the

requirements of

uplink power loadstates, the higher the

uplink power load of

a cell required for

starting the Adaptive

RACH feature and

the shorter the time

required for the


random access

parameters to take

effect. The lower the

requirements of

uplink power load

states, the lower the

uplink power load of

a cell required for

starting the Adaptive

RACH feature and

the longer the time

required for the


random access

parameters to takeeffect.

BSC internal

planning

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Stop Hysteresis

Duration for

Adaptive RACH

OptiStopHyst The larger the value


longer the timerequired to restore

the original settings

of random access

parameters after the

decongestion

threshold for

acknowledged

random accesses is

reached, the smaller

the number of times

the Adaptive RACH

feature is triggered,

and the smaller the

number of system

information updates

in the cell. The

smaller the value of

this parameter, the

larger the number of

system information

updates in the cell.

BSC internal

planning

6.3.3 Activation

6.3.3.1 Activation (Using MML Commands)

Perform the following steps to activate this feature:

Step 1 Run the RNC MML command ADD UCELLLICENSEand select theADAPTIVE_RACH_SWITCH check box under the FuncSwitch2parameter.

Step 2 Run the RNC MML command MOD UCELLALGOSWITCHand select theACK_PRACH_PREAM_MEAS and ADAPTIVE_RACHcheck boxes under the

NBMLdcAlgoSwitch parameter.

Step 3 (Optional) Run the MML command ADD CELLADAPTRACHor MODUCELLADAPTRACHand specify the following parameters: Cell ID, Random Access

Resource Congestion Trigger Thre, Random Access Resource Congestion Clear Thre,

Optimized Uplink Power Load State, and Stop Hysteresis Duration for Adaptive RACH.

----End

6.3.3.2 MML Command Examples//Activating the Adaptive RACH feature

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ADD UCELLLICENSE: CellId=1, FuncSwitch2=ADAPTIVE_RACH_SWITCH-1;

MOD UCELLALGOSWITCH: CellId=1, NBMLdcAlgoSwitch=

ADAPTIVE_RACH-1&ACK_PRACH_PREAM_MEAS-1;

ADD UCELLADAPTRACH: CellId=1, OptiConstantvalue=-30, OptiPreambleRetransMax=40,

OptiPowerRampStep=1, RandomAccessCongestThd=20, RandomAccessClearThd=15,

OptiStartLoadState=LoadedState, OptiStopHyst=30;

6.3.3.3 Activation (Using the CME)

Using the CME (Method 1)

NOTE

When configuring the Adaptive RACH feature on the CME, perform a single configuration first, and then

perform a batch modification if required. Configure the parameters of a single object before a batch

modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object (such as a cell) on the CME.

Set parameters on the CME according to the operation sequence in Table 6-1. For instructions

on how to perform the CME single configuration, see CME Single Configuration Operation

Guide.

Step 2 (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click on the CME to start the batch modification wizard. For

instructions on how to perform a batch modification through the CME batch modification center,

press F1 on the wizard interface to obtain online help.

----End

Table 6-1Configuring the parameters on the CME

SN MO NE ParameterName

ParameterID

Configurable in CMEBatchModification Center

1 UCELLLIC

ENSE

RNC Function

Switch2

FuncSwitch

2:

ADAPTIVE

_RACH_S

WITCH

Yes

2 UCELLAL

GOSWITC

H

RNC Switch for

Cell Load

Control

NBMLdcAl

goSwitch:

ADAPTIVE

_RACH

NBMLdcAl

goSwitch:

ACK_PRAC

H_PREAM_

MEAS

Yes

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Using the CME (Method 2)

This feature can be batch activated using the CME. For detailed operations, see the following

section in the CME product documentation or online help: Managing the CME > CME

Guidelines > Enhanced Feature Management > Feature Operation and Maintenance.

6.3.4 Activation Observation

To check whether this feature has been enabled, perform the following steps to query self-

organizing network (SON) logs:

Step 1 On the M2000 client, choose SON > SON Log.

Step 2 On the displayed SON Log tab page, click Query SON Log. Set Log Category to AdaptiveRACH log and Event Name to Not Limited. In addition, specify Event Source Object and Time

Period as required.

Step 3 Click Synchronize in the bottom right corner of the SON Log tab page.

Step 4 Click Query. If there is a record in the specified time period, this feature has taken effect. If thereis no record in the specified time period, this feature has not taken effect. Check whether the cell

meets the requirements for this feature.

----End

After this feature is activated, operating information about this feature will be recorded in SON

logs.

6.3.5 Deactivation

6.3.5.1 Deactivation (Using MML Commands)

To deactivate this feature, deselect the ADAPTIVE_RACHand

ACK_PRACH_PREAM_MEAS check boxes under the Switch for Cell Load Control

parameter in the MOD UCELLALGOSWITCHcommand.

6.3.5.2 MML Command Examples//Deactivating the Adaptive RACH feature

MOD UCELLALGOSWITCH: CellId=1, NBMLdcAlgoSwitch=

ADAPTIVE_RACH-0&ACK_PRACH_PREAM_MEAS-0;

6.3.5.3 Deactivation (Using the CME)

NOTE

When configuring the Adaptive RACH feature on the CME, perform a single configuration first, and then

perform a batch modification if required. Configure the parameters of a single object before a batch

modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object (such as a cell) on the CME.

Set parameters on the CME according to the operation sequence in Table 6-2. For instructions

on how to perform the CME single configuration, see CME Single Configuration Operation

Guide.

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Step 2 (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click on the CME to start the batch modification wizard. For

instructions on how to perform a batch modification through the CME batch modification center,

press F1 on the wizard interface to obtain online help.

----End

Table 6-2Configuring the parameter on the CME

SN MO NE ParameterName

ParameterID

Configurable in CMEBatchModification Center

1 UCELLALGOSWITC

H

RNC Switch for Cell Load

Control

NBMLdcAlgoSwitch:

ADAPTIVE

_RACH

NBMLdcAl

goSwitch:

ACK_PRAC

H_PREAM_

MEAS

Yes

6.4 Performance Monitoring

To evaluate the performance of this feature, check whether the RTWP of each cell decreases

after the feature is activated.

The RTWP of a cell changes with the cell load. Therefore, the changes in RTWP in a short period

of time after this feature is activated do not reflect the performance of this feature. It is

recommended that you check the RTWPs for 3 to 5 days before and after this feature is activated.

The RTWP of each cell can be checked in the following ways:

1. Counters VS.MaxRTWP and VS.MeanRTWP on the RNC side2. Counters VS.HSUPA.LoadOutput.0 to VS.HSUPA.LoadOutput.25 on the NodeB side

6.5 Parameter Optimization

Setting the RandomAccessCongestThdand OptiStartLoadStateparameters to smaller values

increases the probability that this feature takes effect.

6.6 Troubleshooting

None

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7ParametersTable 7-1Parameter description

Parameter ID NE MMLCommand

Feature ID Feature Name Description

NBMLdcAlgoS

witch

BSC6900 ADD

UCELLALGOS

WITCH

MOD

UCELLALGOS

WITCH

WRFD-151203

WRFD-020106

WRFD-150231

WRFD-150219

WRFD-150216

WRFD-150217

WRFD-150215

WRFD-010610

03

WRFD-020102

WRFD-140223

WRFD-150236

WRFD-020101

WRFD-140226

WRFD-020107WRFD-020104

WRFD-020105

WRFD-020126

WRFD-010612

02

WRFD-020129

WRFD-010626

WRFD-010627

WRFD-020103

Camping

Strategy Switch

for Mass Event

Load

Reshuffling

RIM Based

UMTS Target

Cell Selectionfor LTE

Coverage Based

PS Redirection

from UMTS to

LTE

Load Based PS

Redirection

from UMTS to

LTE

Load Based PSHandover from

UMTS to LTE

SRVCC from

LTE to UMTS

with PS

Handover

HSDPA

Admission

Control

Load

Measurement

Meaning:Wheth

er to enable the

algorithms

related to cell

load control.

Selecting a

switch enables

the

corresponding

algorithm and

clearing a switch

disables the

corresponding

algorithm. 1.

INTRA_FREQ

UENCY_LDB:

Whether to

enable the cell

breathing

algorithm. Thisalgorithm

adjusts P-

CPICH transmit

power of a cell

based on the

downlink TCP

load to achieve

load balancing

between intra-

frequency cells.

This algorithm

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WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663

WRFD-010665

WRFD-140102

WRFD-010660

04

WRFD-010616

06

WRFD-01066002

WRFD-010660

03

WRFD-010660

01

WRFD-010616

05

WRFD-150220

WRFD-010616

01WRFD-010616

03

WRFD-010616

02

WRFD-140217

WRFD-010616

04

WRFD-010616

WRFD-010616

08

WRFD-140218

MOCN Cell

ResourceDemarcation

Load Based

Dynamic

Adjustment of

PCPICH

Admission

Control

Fast Return

from UMTS to

LTE

Overload

Control

Intra Frequency

Load Balance

Potential User

Control

Mobility

Between UMTS

and LTE Phase 1

HSUPAAdmission

Control

PS Service

Redirection

from UMTS to

LTE

MBMS FLC

(Frequency

Layer

Convergence)/

FLD(FrequencyLayer

Dispersion)

FACH

Transmission

Sharing for

MBMS

Inter Frequency

Load Balance

MBMS Phase 2

MBMS over Iur

automatically

becomes invalidwhen the load-

based dynamic

P-CPICH

transmit power

adjustment

algorithm

(controlled by

the

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH switch)

takes effect. 2.

PUC: Whether

to enable the

Potential User

Control (PUC)

algorithm. This

algorithm

adjusts cell

selection and

reselection

parametersbased on the cell

load to enable

UEs to reselect

lightly loaded

cells. 3.

UL_UU_OLC:

Whether to

enable the

uplink overload

control (OLC)

algorithm.

When the uplink

power is

overloaded in a

cell, this

algorithm

alleviates the

uplink load by

using quick

transport format

(TF) restriction,

distributing best

effort (BE)

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Dynamic Power

Estimation forMTCH

MSCH

Scheduling

MBMS Channel

Audience

Rating Statistics

CS Fallback

Guarantee for

LTE Emergency

Calls

Inter-Frequency

Neighboring

Cell Selection

for MBMS PTP

Users

Streaming

Service on

MBMS

MBMS P2P

over HSDPA

MBMS

Admission

Enhancement

MBMS

Enhanced

Broadcast Mode

MBMS

Transport

Resource

Management

Coverage Based

PS Handover

from UMTS to

LTE

MBMS

Broadcast Mode

MBMS Load

Control

MBMS

Admission

Control

service to

commonchannels, or

releasing UEs.

4.

DL_UU_OLC:

Whether to

enable the

downlink OLC

algorithm.

When the

downlink power

is overloaded in

a cell, this

algorithm

alleviates the

downlink load

by using quick

TF restriction,

distributing BE

services to

common

channels,

releasing UEs,

or reconfiguringthe maximum

transmit power

of FACHs. 5.

UL_UU_LDR:

Whether to

enable the

uplink load

reshuffling

(LDR)

algorithm.

When the uplink

load is heavy in

a cell, this

algorithm

alleviates the

uplink load by

using load-

based inter-

frequency

handovers, BE

service rate

reduction,

uncontrollable

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Inter-Frequency

Load Balancing

Based on

Configurable

Load Threshold

MBMS Soft/

Selective

Combining

MBMS

Introduction

Package

16/32/64/128Kb

ps Channel Rateon MBMS

Service-Based

PS Handover

from UMTS to

LTE

real-time service

QoSrenegotiation,

load-based CS/

PS inter-RAT

handovers, and

AMR service

rate reduction. 6.

DL_UU_LDR:

Whether to

enable the

downlink LDR

algorithm.

When the

downlink load is

heavy in a cell,

this algorithm

alleviates the

downlink load

by using load-

based inter-

frequency

handovers, BE

service rate

reduction,uncontrollable

real-time service

QoS

renegotiation,

load-based CS/

PS inter-RAT

handovers,

AMR service

rate reduction,

and MBMS

power

restriction. 7.

OLC_EVENT

MEAS:

Whether to

enable OLC

event

measurement. 8.

CELL_CODE_

LDR: Whether

to enable cell

code reshuffling

algorithm. In the

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event of code

resourceoveruse, this

algorithm

alleviates the

code resource

overuse by using

BE service rate

reduction, code

tree reshuffling,

and load-based

inter-frequency

handovers. 9.

CELL_CREDIT

_LDR: Whether

to enable the cell

credit

reshuffling

algorithm. In the

event of cell

credit overuse,

this algorithm

alleviates the

credit overuse

by using load-based inter-

frequency

handovers, BE

service rate

reduction,

uncontrollable

real-time service

QoS

renegotiation,

and load-based

CS/PS inter-

RAT handovers.

10.

UL_INTRA_FR

EQUENCY_UL

B: Whether to

enable RTWP-

based intra-

frequency load

balancing

algorithm. This

algorithm

adjusts P-

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CPICH transmit

power of a cellbased on the

RTWP load to

achieve load

balancing

between intra-

frequency cells.

This algorithm

automatically

becomes invalid

when the load-

based dynamic

P-CPICH

transmit power

adjustment

algorithm

(controlled by

the

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH switch)

takes effect. 11.

UL_UU_CLB:Whether to

enable the

uplink load-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

uplink load on

the air interface.

If a cell is in the

CLB state,

measurement-

based inter-

frequency

handovers are

triggered

periodically to

achieve load

balancing

between inter-

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frequency cells.

12.DL_UU_CLB:

Whether to

enable the

downlink load-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

downlink load

on the air

interface. If a

cell is in the

CLB state,

measurement-

based inter-

frequency

handovers are

triggered

periodically to

achieve loadbalancing

between inter-

frequency cells.

13.

CELL_CODE_

CLB: Whether

to enable code

resource-based

CLB algorithm.

This algorithm

determines

whether a cell

enters the CLB

state by the code

resource usage.

If a cell is in the

CLB state,

measurement-

based inter-

frequency

handovers are

triggered

periodically to

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achieve load

balancingbetween inter-

frequency cells.

14.

CELL_CREDIT

_CLB: Whether

to enable credit-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

credit resource

usage. If a cell is

in the CLB state,

measurement-

based inter-

frequency

handovers are

triggered

periodically to

achieve loadbalancing

between inter-

frequency cells.

15.

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH: Whether

to enable

downlink load-

based dynamic

primary

common pilot

channel (P-

CPICH) power

adjustment

algorithm. This

algorithm

adjusts the P-

CPICH transmit

power by the

downlink non-

HSPA power

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load to reduce

the downlinknon-HSPA

power load. If

this algorithm

takes effect,

other enabled

algorithms for

intra-frequency

load balancing

(based on TCP

or RTWP)

automatically

become invalid.

16.

ADAPTIVE_R

ACH: Function

switch for the

adaptive RACH

feature. When

this switch is

turned on, this

feature is

activated. In this

case, the RNCadjusts the

random access

parameters

based on the

random access

state and on the

uplink power

load of the target

cell. When this

switch is turned

off, this feature

is deactivated.

17.

ACK_PRACH_

PREAM_MEA

S: Whether to

measure the

number of

acknowledged

PRACH

preambles.

When this

switch is turned

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on, the RNC

measures thenumber of

acknowledged

PRACH

preambles.

When this

switch is turned

off, the RNC

does not

measure the

number of

acknowledged

PRACH

preambles. 18.

CAMPING_ST

RATEGY_SWI

TCH: Whether

to enable the

camping policy

switching

function when

traffic is heavy.

This is a

function switchfor the function.

When the switch

is turned on, the

camping policy

switching

function is

enabled if traffic

is heavy in the

entire network.

Then, the target

cell is no longer

a preferred

camping cell for

the UE in

question, but a

random

camping cell.

GUI Value

Range:INTRA_

FREQUENCY_

LDB, PUC,

UL_UU_LDR,

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DL_UU_LDR,

UL_UU_OLC,DL_UU_OLC,

OLC_EVENT

MEAS,

CELL_CODE_

LDR,

CELL_CREDIT

_LDR,

UL_INTRA_FR

EQUENCY_UL

B,

UL_UU_CLB,

DL_UU_CLB,

CELL_CODE_

CLB,

CELL_CREDIT

_CLB,

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH,

ADAPTIVE_R

ACH,

ACK_PRACH_PREAM_MEA

S,

CAMPING_ST

RATEGY_SWI

TCH

Unit:None

Actual Value

Range:INTRA_

FREQUENCY_

LDB, PUC,

UL_UU_LDR,DL_UU_LDR,

UL_UU_OLC,

DL_UU_OLC,

OLC_EVENT

MEAS,

CELL_CODE_

LDR,

CELL_CREDIT

_LDR,

UL_INTRA_FR

EQUENCY_UL

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B,

UL_UU_CLB,DL_UU_CLB,

CELL_CODE_

CLB,

CELL_CREDIT

_CLB,

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH,

ADAPTIVE_R

ACH,

ACK_PRACH_

PREAM_MEA

S,

CAMPING_ST

RATEGY_SWI

TCH

Default

Value:INTRA_

FREQUENCY_

LDB:0,PUC:

0,UL_UU_LDR

:0,DL_UU_LDR

:

0,UL_UU_OLC

:

0,DL_UU_OLC

:

0,OLC_EVENT

MEAS:

0,CELL_CODE

_LDR:

0,CELL_CREDIT_LDR:

0,UL_INTRA_

FREQUENCY_

ULB:

0,UL_UU_CLB

:

0,DL_UU_CLB

:

0,CELL_CODE

_CLB:

0,CELL_CRED

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IT_CLB:

0,DLLOAD_B

ASED_PCPICH

_PWR_ADJ_S

WITCH:

0,ADAPTIVE_

RACH:

0,ACK_PRAC

H_PREAM_M

EAS:

0,CAMPING_S

TRATEGY_S

WITCH:0

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NBMLdcAlgoS

witch

BSC6910 ADD

UCELLALGOSWITCH

MOD

UCELLALGOS

WITCH

WRFD-151203

WRFD-020106

WRFD-150231

WRFD-150219

WRFD-150216

WRFD-150217

WRFD-150215

WRFD-010610

03

WRFD-020102

WRFD-140223

WRFD-150236

WRFD-020101

WRFD-140226

WRFD-020107

WRFD-020104

WRFD-020105

WRFD-020126

WRFD-010612

02

WRFD-020129

WRFD-010626

WRFD-010627

WRFD-020103

WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663WRFD-010665

WRFD-140102

WRFD-010660

04

WRFD-010616

06

WRFD-010660

02

WRFD-010660

03

Camping

Strategy Switchfor Mass Event

Load

Reshuffling

RIM Based

UMTS Target

Cell Selection

for LTE

Coverage Based

PS Redirection

from UMTS to

LTE

Load Based PS

Redirection

from UMTS to

LTE

Load Based PS

Handover from

UMTS to LTE

SRVCC from

LTE to UMTS

with PSHandover

HSDPA

Admission

Control

Load

Measurement

MOCN Cell

Resource

Demarcation

Load Based

Dynamic

Adjustment of

PCPICH

Admission

Control

Fast Return

from UMTS to

LTE

Overload

Control

Meaning:Wheth

er to enable thealgorithms

related to cell

load control.

Selecting a

switch enables

the

corresponding

algorithm and

clearing a switch

disables the

corresponding

algorithm. 1.

INTRA_FREQ

UENCY_LDB:

Whether to

enable the cell

breathing

algorithm. This

algorithm

adjusts P-

CPICH transmit

power of a cell

based on thedownlink TCP

load to achieve

load balancing

between intra-

frequency cells.

This algorithm

automatically

becomes invalid

when the load-

based dynamic

P-CPICH

transmit power

adjustment

algorithm

(controlled by

the

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH switch)

takes effect. 2.

PUC: Whether

to enable the

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WRFD-010660

01WRFD-010616

05

WRFD-150220

WRFD-010616

01

WRFD-010616

03

WRFD-010616

02

WRFD-140217

WRFD-010616

04

WRFD-010616

WRFD-010616

08

WRFD-140218

Intra Frequency

Load BalancePotential User

Control

Mobility

Between UMTS

and LTE Phase 1

HSUPA

Admission

Control

PS Service

Redirection

from UMTS to

LTE

MBMS FLC

(Frequency

Layer

Convergence)/

FLD(Frequency

Layer

Dispersion)

FACH

TransmissionSharing for

MBMS

Inter Frequency

Load Balance

MBMS Phase 2

MBMS over Iur

Dynamic Power

Estimation for

MTCH

MSCHScheduling

MBMS Channel

Audience

Rating Statistics

CS Fallback

Guarantee for

LTE Emergency

Calls

Inter-Frequency

Neighboring

Cell Selection

Potential User

Control (PUC)algorithm. This

algorithm

adjusts cell

selection and

reselection

parameters

based on the cell

load to enable

UEs to reselect

lightly loaded

cells. 3.

UL_UU_OLC:

Whether to

enable the

uplink overload

control (OLC)

algorithm.

When the uplink

power is

overloaded in a

cell, this

algorithm

alleviates theuplink load by

using quick

transport format

(TF) restriction,

distributing best

effort (BE)

service to

common

channels, or

releasing UEs.

4.

DL_UU_OLC:

Whether to

enable the

downlink OLC

algorithm.

When the

downlink power

is overloaded in

a cell, this

algorithm

alleviates the

downlink load

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for MBMS PTP

UsersStreaming

Service on

MBMS

MBMS P2P

over HSDPA

MBMS

Admission

Enhancement

MBMS

Enhanced

Broadcast Mode

MBMS

Transport

Resource

Management

Coverage Based

PS Handover

from UMTS to

LTE

MBMS

Broadcast Mode

MBMS Load

Control

MBMS

Admission

Control

Inter-Frequency

Load Balancing

Based on

Configurable

Load Threshold

MBMS Soft/

Selective

Combining

MBMS

Introduction

Package

16/32/64/128Kb

ps Channel Rate

on MBMS

Service-Based

PS Handover

by using quick

TF restriction,distributing BE

services to

common

channels,

releasing UEs,

or reconfiguring

the maximum

transmit power

of FACHs. 5.

UL_UU_LDR:

Whether to

enable the

uplink load

reshuffling

(LDR)

algorithm.

When the uplink

load is heavy in

a cell, this

algorithm

alleviates the

uplink load by

using load-based inter-

frequency

handovers, BE

service rate

reduction,

uncontrollable

real-time service

QoS

renegotiation,

load-based CS/

PS inter-RAT

handovers, and

AMR service

rate reduction. 6.

DL_UU_LDR:

Whether to

enable the

downlink LDR

algorithm.

When the

downlink load is

heavy in a cell,

this algorithm

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from UMTS to

LTEalleviates the

downlink loadby using load-

based inter-

frequency

handovers, BE

service rate

reduction,

uncontrollable

real-time service

QoS

renegotiation,

load-based CS/

PS inter-RAT

handovers,

AMR service

rate reduction,

and MBMS

power

restriction. 7.

OLC_EVENT

MEAS:

Whether to

enable OLC

eventmeasurement. 8.

CELL_CODE_

LDR: Whether

to enable cell

code reshuffling

algorithm. In the

event of code

resource

overuse, this

algorithm

alleviates the

code resource

overuse by using

BE service rate

reduction, code

tree reshuffling,

and load-based

inter-frequency

handovers. 9.

CELL_CREDIT

_LDR: Whether

to enable the cell

credit

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reshuffling

algorithm. In theevent of cell

credit overuse,

this algorithm

alleviates the

credit overuse

by using load-

based inter-

frequency

handovers, BE

service rate

reduction,

uncontrollable

real-time service

QoS

renegotiation,

and load-based

CS/PS inter-

RAT handovers.

10.

UL_INTRA_FR

EQUENCY_UL

B: Whether to

enable RTWP-based intra-

frequency load

balancing

algorithm. This

algorithm

adjusts P-

CPICH transmit

power of a cell

based on the

RTWP load to

achieve load

balancing

between intra-

frequency cells.

This algorithm

automatically

becomes invalid

when the load-

based dynamic

P-CPICH

transmit power

adjustment

algorithm

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(controlled by

theDLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH switch)

takes effect. 11.

UL_UU_CLB:

Whether to

enable the

uplink load-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

uplink load on

the air interface.

If a cell is in the

CLB state,

measurement-

based inter-

frequencyhandovers are

triggered

periodically to

achieve load

balancing

between inter-

frequency cells.

12.

DL_UU_CLB:

Whether to

enable the

downlink load-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

downlink load

on the air

interface. If a

cell is in the

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CLB state,

measurement-based inter-

frequency

handovers are

triggered

periodically to

achieve load

balancing

between inter-

frequency cells.

13.

CELL_CODE_

CLB: Whether

to enable code

resource-based

CLB algorithm.

This algorithm

determines

whether a cell

enters the CLB

state by the code

resource usage.

If a cell is in the

CLB state,measurement-

based inter-

frequency

handovers are

triggered

periodically to

achieve load

balancing

between inter-

frequency cells.

14.

CELL_CREDIT

_CLB: Whether

to enable credit-

based CLB

algorithm. This

algorithm

determines

whether a cell

enters the CLB

state by the

credit resource

usage. If a cell is

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in the CLB state,

measurement-based inter-

frequency

handovers are

triggered

periodically to

achieve load

balancing

between inter-

frequency cells.

15.

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH: Whether

to enable

downlink load-

based dynamic

primary

common pilot

channel (P-

CPICH) power

adjustment

algorithm. Thisalgorithm

adjusts the P-

CPICH transmit

power by the

downlink non-

HSPA power

load to reduce

the downlink

non-HSPA

power load. If

this algorithm

takes effect,

other enabled

algorithms for

intra-frequency

load balancing

(based on TCP

or RTWP)

automatically

become invalid.

16.

ADAPTIVE_R

ACH: Function

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switch for the

adaptive RACHfeature. When

this switch is

turned on, this

feature is

activated. In this

case, the RNC

adjusts the

random access

parameters

based on the

random access

state and on the

uplink power

load of the target

cell. When this

switch is turned

off, this feature

is deactivated.

17.

ACK_PRACH_

PREAM_MEA

S: Whether to

measure thenumber of

acknowledged

PRACH

preambles.

When this

switch is turned

on, the RNC

measures the

number of

acknowledged

PRACH

preambles.

When this

switch is turned

off, the RNC

does not

measure the

number of

acknowledged

PRACH

preambles. 18.

CAMPING_ST

RATEGY_SWI

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TCH: Whether

to enable thecamping policy

switching

function when

traffic is heavy.

This is a

function switch

for the function.

When the switch

is turned on, the

camping policy

switching

function is

enabled if traffic

is heavy in the

entire network.

Then, the target

cell is no longer

a preferred

camping cell for

the UE in

question, but a

random

camping cell.GUI Value

Range:INTRA_

FREQUENCY_

LDB, PUC,

UL_UU_LDR,

DL_UU_LDR,

UL_UU_OLC,

DL_UU_OLC,

OLC_EVENT

MEAS,

CELL_CODE_LDR,

CELL_CREDIT

_LDR,

UL_INTRA_FR

EQUENCY_UL

B,

UL_UU_CLB,

DL_UU_CLB,

CELL_CODE_

CLB,

CELL_CREDIT

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_CLB,

DLLOAD_BASED_PCPICH_P

WR_ADJ_SWI

TCH,

ADAPTIVE_R

ACH,

ACK_PRACH_

PREAM_MEA

S,

CAMPING_ST

RATEGY_SWI

TCH

Unit:None

Actual Value

Range:INTRA_

FREQUENCY_

LDB, PUC,

UL_UU_LDR,

DL_UU_LDR,

UL_UU_OLC,

DL_UU_OLC,

OLC_EVENT

MEAS,

CELL_CODE_

LDR,

CELL_CREDIT

_LDR,

UL_INTRA_FR

EQUENCY_UL

B,

UL_UU_CLB,

DL_UU_CLB,

CELL_CODE_

CLB,

CELL_CREDIT_CLB,

DLLOAD_BAS

ED_PCPICH_P

WR_ADJ_SWI

TCH,

ADAPTIVE_R

ACH,

ACK_PRACH_

PREAM_MEA

S,

CAMPING_ST

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RATEGY_SWI

TCHDefault

Value:INTRA_

FREQUENCY_

LDB:0,PUC:

0,UL_UU_LDR

:

0,DL_UU_LDR

:

0,UL_UU_OLC

:

0,DL_UU_OLC

:

0,OLC_EVENT

MEAS:

0,CELL_CODE

_LDR:

0,CELL_CRED

IT_LDR:

0,UL_INTRA_

FREQUENCY_

ULB:

0,UL_UU_CLB

:0,DL_UU_CLB

:

0,CELL_CODE

_CLB:

0,CELL_CRED

IT_CLB:

0,DLLOAD_B

ASED_PCPICH

_PWR_ADJ_S

WITCH:

0,ADAPTIVE_RACH:

0,ACK_PRAC

H_PREAM_M

EAS:

0,CAMPING_S

TRATEGY_S

WITCH:0

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RandomAccess

CongestThd

BSC6900 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Conge

stion thresholdfor

acknowledged

random

accesses. When

the number of

acknowledged

random accesses

equals to or

exceeds this

parameter value,

the

RNCconsiders

that the random

access state is

congestion.

GUI Value

Range:0~255

Unit:None

Actual Value

Range:0~255

Default Value:

50

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RandomAccess

CongestThd

BSC6910 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Conge

stion thresholdfor

acknowledged

random

accesses. When

the number of

acknowledged

random accesses

equals to or

exceeds this

parameter value,

the

RNCconsiders

that the random

access state is

congestion.

GUI Value

Range:0~255

Unit:None

Actual Value

Range:0~255

Default Value:

50

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OptiConstantval

ue

BSC6900 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Consta

nt in thecalculation of

initial UE

transmit power

for the

optimized

random access

procedure. This

constant is used

when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.331.

GUI Value

Range:-35~-10

Unit:dB

Actual Value

Range:-35~-10

Default

Value:-30

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OptiConstantval

ue

BSC6910 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Consta

nt in thecalculation of

initial UE

transmit power

for the

optimized

random access

procedure. This

constant is used

when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.331.

GUI Value

Range:-35~-10

Unit:dB

Actual Value

Range:-35~-10

Default

Value:-30

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OptiPowerRam

pStep

BSC6900 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Power

increase step forthe optimized

random access

procedure. This

parameter is

used when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~8

Unit:dB

Actual Value

Range:1~8Default Value:1

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OptiPowerRam

pStep

BSC6910 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Power

increase step forthe optimized

random access

procedure. This

parameter is

used when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~8

Unit:dB

Actual Value

Range:1~8Default Value:1

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OptiPreambleR

etransMax

BSC6900 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Maxi

mum number oftimes the

PRACH

preambles can

be retransmitted

for the

optimized

random access

procedure. This

parameter is

used when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI ValueRange:1~64

Unit:None

Actual Value

Range:1~64

Default Value:

40

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OptiPreambleR

etransMax

BSC6910 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Maxi

mum number oftimes the

PRACH

preambles can

be retransmitted

for the

optimized

random access

procedure. This

parameter is

used when the

congestion

threshold for

acknowledged

random accesses

is reached and

uplink load is

heavy. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI ValueRange:1~64

Unit:None

Actual Value

Range:1~64

Default Value:

40

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RandomAcces-

sClearThd

BSC6900 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Decon

gestionthreshold for

acknowledged

random

accesses. When

the number of

acknowledged

random accesses

equals to or

becomes smaller

than this

parameter value,

the RNC

considers that

the random

access state is

decongestion.

GUI Value

Range:0~255

Unit:None

Actual Value

Range:0~255

Default Value:30

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RandomAcces-

sClearThd

BSC6910 ADD

UCELLADAPTRACH

MOD

UCELLADAPT

RACH

WRFD-151201 Adaptive RACH Meaning:Decon

gestionthreshold for

acknowledged

random

accesses. When

the number of

acknowledged

random accesses

equals to or

becomes smaller

than this

parameter value,

the RNC

considers that

the random

access state is

decongestion.

GUI Value

Range:0~255

Unit:None

Actual Value

Range:0~255

Default Value:30

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Constantvalue BSC6900 ADD

UPRACHBASIC

MOD UPRACH

MOD

UPRACHUUP

ARAS

WRFD-020501 Open Loop

Power Control

Meaning:This

parameterspecifies a

constant used at

calculation of

the initial

transmit power

of the first

preamble, to be

used in the

random access

procedure. The

formula is as

follows:

Preamble_Initia

l_Power =

PCPICH DL TX

power -

CPICH_RSCP +

UL interference

+ Constant

Value. Where,

Preamble_Initia

l_Power is the

preamble initialTX power,

Primary CPICH

DL TX power is

the downlink

transmit (TX)

power of

PCPICH,

CPICH_RSCP

is the receive

signaling code

power of the

PCPICH

measured by

UEs, and UL

interference is

the uplink

interference. For

detailed

information of

this parameter,

see 3GPP TS

25.331.

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GUI Value

Range:-35~-10Unit:dB

Actual Value

Range:-35~-10

Default

Value:-20

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Constantvalue BSC6910 ADD

UPRACHBASIC

MOD UPRACH

MOD

UPRACHUUP

ARAS


Power Control

Meaning:This

parameterspecifies a

constant used at

calculation of

the initial

transmit power

of the first

preamble, to be

used in the

random access

procedure. The

formula is as

follows:

Preamble_Initia

l_Power =

PCPICH DL TX

power -

CPICH_RSCP +

UL interference

+ Constant

Value. Where,

Preamble_Initia

l_Power is the

preamble initialTX power,

Primary CPICH

DL TX power is

the downlink

transmit (TX)

power of

PCPICH,

CPICH_RSCP

is the receive

signaling code

power of the

PCPICH

measured by

UEs, and UL

interference is

the uplink

interference. For

detailed

information of

this parameter,

see 3GPP TS

25.331.

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GUI Value

Range:-35~-10Unit:dB

Actual Value

Range:-35~-10

Default

Value:-20

PowerRampSte

p

BSC6900 ADD

UPRACHBASI

C

MOD UPRACH

MOD

UPRACHUUP

ARAS


Power Control

Meaning:The

power ramp step

of the random

access

preamblestransmitted

before the UE

receives the

acquisition

indicator in the

random access

process. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~8

Unit:dB

Actual Value

Range:1~8

Default Value:2

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PowerRampSte

p

BSC6910 ADD

UPRACHBASIC

MOD UPRACH

MOD

UPRACHUUP

ARAS


Power Control

Meaning:The

power ramp stepof the random

access

preambles

transmitted

before the UE

receives the

acquisition

indicator in the

random access

process. For

detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~8

Unit:dB

Actual Value

Range:1~8

Default Value:2

PreambleRetran

sMax

BSC6900 ADD

UPRACHBASI

C

MOD UPRACH

MOD

UPRACHUUP

ARAS


Power Control

Meaning:The

maximum

number of

preambles

transmitted in a

preamble

ramping cycle.

For detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~64

Unit:None

Actual Value

Range:1~64

Default Value:

20

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PreambleRetran

sMax

BSC6910 ADD

UPRACHBASIC

MOD UPRACH

MOD

UPRACHUUP

ARAS


Power Control

Meaning:The

maximumnumber of

preambles

transmitted in a

preamble

ramping cycle.

For detailed

information of

this parameter,

see 3GPP TS

25.211.

GUI Value

Range:1~64

Unit:None

Actual Value

Range:1~64

Default Value:

20

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FuncSwitch2 BSC6900 ADD

UCELLLICENSE

MOD

UCELLLICEN

SE

WRFD-151203

WRFD-150236

WRFD-151201

WRFD-150232

WRFD-150246

Camping

Strategy Switchfor Mass Event

Load Based

Dynamic

Adjustment of

PCPICH

Adaptive RACH

Multiband

Direct Retry

Based on UE

Location

Service Steering

and Load

Sharing in

CELL_FACH

State

Meaning:

1.BASED_UE_LOC_DRD_SW

ITCH: Whether

the function of

UE location-

based multi-

frequency-band

DRD is

available. When

the conditions of

path loss are

met, cell edge

UEs in a high-

frequency-band

cell perform the

DRD procedure

towards a low-

frequency-band

cell, or cell

center UEs in a

low-frequency-

band cell

perform the

DRD proceduretowards a high-

frequency-band

cell. The

function of UE

location-based

multi-

frequency-band

DRD takes

effect only when

this parameter is

turned on and

the

"BasedUELocD

RDSwitch"

parameter in the

"SET UDRD" or

"ADD

UCELLDRD"

command is also

turned on. 2.

LOAD_BASED

_PCPICH_PW

R_ADJ:

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Whether the

license functionswitch for Load

Based Dynamic

Adjustment of

PCPICH is

enabled. 3.

ADAPTIVE_R

ACH_SWITCH

(License Switch

for Adaptive

RACH): Cell-

level license

switch for the

adaptive RACH

feature. When

this switch is

turned on, the

adaptive RACH

is activated.

When this

switch is turned

off, this feature

is deactivated. 4.

CAMPING_STRATEGY_SWI

TCH(Switch for

Camp Policy

Switching in

Heavy Traffic):

Whether to

enable the

camping policy

switching

function when

traffic is heavy.

This is a license

switch for the

function. When

the switch is

turned on, the

camping policy

switching

function is

enabled if traffic

is heavy in the

entire network.

Then, the target

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cell is no longer

a preferredcamping cell for

the UE in

question, but a

random

camping cell. 5.

FACH_POOL_

SWITCH:

Function switch

for the FACH

Pool feature.

When this

switch is turned

on, the FACH

Pool feature is

activated and the

P2F-triggered

redirection

algorithm is also

activated. Note

that P2F

indicates a

CELL_PCH/

URA_PCH-to-CELL_FACH

state transition.

6.

FACH_TRAFF

_STEER_AND

_LOAD_SHAR

E_SWITCH:

Function switch

for the Service

Steering and

Load Sharing in

CELL_FACH

State feature.

When this

switch is turned

on, this feature is

activated. This

feature

incorporates the

P2F-triggered

redirection

algorithm for

real-time

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services, the

P2F-triggeredredirection

algori