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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.
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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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Adaptive RACH Feature Parameter Description Contents
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9 Glossary.........................................................................................................................................79
10 Reference Documents...............................................................................................................80
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Adaptive RACH Feature Parameter Description Contents
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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.
WCDMA RAN
Adaptive RACH Feature Parameter Description 1 Introduction
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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.
WCDMA RAN
Adaptive RACH Feature Parameter Description 2 Overview
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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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Adaptive RACH Feature Parameter Description 3 Technical Description
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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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Adaptive RACH Feature Parameter Description 3 Technical Description
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4Related FeaturesPrerequisite Features
None
Mutually Exclusive Features
None
Impacted Features
None
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Adaptive RACH Feature Parameter Description 4 Related Features
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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
parameter is set to a
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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Parameter Name Parameter ID Setting Notes Data Source
Optimized Max
Random Access
Preamble Retrans
OptiPreambleRe-
transMax
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, 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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Parameter Name Parameter ID Setting Notes Data Source
Optimized Power
Increase Step
OptiPowerRamp-
Step
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
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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Parameter Name Parameter ID Setting Notes Data Source
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
optimized settings of
random accessparameters to take
effect.
BSC internal
planning
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Parameter Name Parameter ID Setting Notes Data Source
Random Access
Resource
Congestion ClearThre
RandomAcces-
sClearThd
The larger the value
of this parameter, the
larger the number ofacknowledged
PRACH preambles
required for stopping
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 stopping
the Adaptive RACH
feature and the
longer the time
required for the
optimized settings of
random accessparameters to take
effect.
BSC internal
planning
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Parameter Name Parameter ID Setting Notes Data Source
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
optimized settings of
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
optimized settings of
random access
parameters to takeeffect.
BSC internal
planning
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Parameter Name Parameter ID Setting Notes Data Source
Stop Hysteresis
Duration for
Adaptive RACH
OptiStopHyst The larger the value
of this parameter, the
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Adaptive RACH Feature Parameter Description 7 Parameters
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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
(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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
_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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
GUI Value
Range:-35~-10Unit:dB
Actual Value
Range:-35~-10
Default
Value:-20
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Parameter ID NE MMLCommand
Feature ID Feature Name Description
Constantvalue BSC6910 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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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
WRFD-020501 Open Loop
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
PowerRampSte
p
BSC6910 ADD
UPRACHBASIC
MOD UPRACH
MOD
UPRACHUUP
ARAS
WRFD-020501 Open Loop
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
WRFD-020501 Open Loop
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
PreambleRetran
sMax
BSC6910 ADD
UPRACHBASIC
MOD UPRACH
MOD
UPRACHUUP
ARAS
WRFD-020501 Open Loop
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
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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Parameter ID NE MMLCommand
Feature ID Feature Name Description
services, the
P2F-triggeredredirection
algori