Using MML Commands

Step 1 Run the MOD CELLALGOSWITCH command with the BlindScellAutoSwitch option of the CA Auto Group Configuration Switch parameter selected to activate ANGC for CA. Step 2 Run the MOD CAMGTCFG and MOD SCCFREQCFG commands to set the parameters

related to the function. ----End

8.1.4.2.4 MML Command Examples

//Turning on the switch for automatic configuration of the blind configuration flag for an SCell

MOD CELLALGOSWITCH:LOCALCELLID=0,CAAUTOGROUPSWITCH=BlindScellAutoSwitch-1; //Configuring the parameters related to the function

MOD CAMGTCFG:LOCALCELLID=0, ADDEDMEASCFG=NOT_ALLOWED, BLINDSCELLSAMPLENUM=1000, OPTMODE=FREE, SLEEPPERIOD=1440, STATPERIOD=1440;

MOD

SCCFREQCFG:PCCDLEARFCN=0,SCCDLEARFCN=1,BLINDSCELLADDTHD=75,BLINDSCELLDELTHD=50,CTR LMODE=AUTO;

8.1.4.3 Activation Observation

The feature operation result can be observed in the following methods:

l Using MML commands

l Viewing SON logs

Using MML Commands

If the feature works in FREE mode or if it works in CONTROLLED mode but manual acknowledgment is performed, engineers can query the operation result of the feature by running the LST CAGROUPSCELLCFG command.

In the command output, engineers can learn the operation result by checking whether CAGROUPSCELLCFG is added or deleted and querying the value of ScellBlindCfgFlag.

Viewing SON Logs

SON logs record information about successful configuration implementation after the feature is enabled.

NOTE

For details about how to view SON logs, see section "Viewing SON Logs" in the U2000 product documentation.

SON logs contain the following information: l Site ID, cell ID, and downlink EARFCN

l Information about inter-frequency neighboring cells for which SCell blind configuration flags are successfully added (including site ID, cell ID, and downlink EARFCN) and relevant statistical information:

– Number of blind SCell samples – Number of the actual samples – Number of valid samples

– Threshold for adding SCell blind configuration flags

– Value of the SCell blind configuration flag after modification

l Information about inter-frequency neighboring cells for which SCell blind configuration flags are successfully modified (including site ID, cell ID, and downlink EARFCN) and relevant statistical information:

– Number of blind SCell samples – Number of the actual samples – Number of valid samples

– Threshold for adding SCell blind configuration flags

– Value of the SCell blind configuration flag after modification

l Information about inter-frequency neighboring cells for which SCell blind configuration flags are successfully deleted (including site ID, cell ID, and downlink EARFCN) and relevant statistical information:

– Number of blind SCell samples – Number of the actual samples – Number of valid samples

– Threshold for deleting the blind configuration flag of an SCell

8.1.4.4 Deactivation

Using the CME

For detailed operations, see CME-based Feature Configuration.

Using MML Commands

Run the MOD CELLALGOSWITCH command to turn off the switch for automatic configuration of SCell blind configuration flags.

MML Command Examples

//Turning off the switch for automatic configuration of SCell blind configuration flags MOD CELLALGOSWITCH:LOCALCELLID=0,CAAUTOGROUPSWITCH=BlindScellAutoSwitch-0;

8.1.5 Performance Monitoring

For details, see 8.1.4.3 Activation Observation.

8.1.6 Parameter Optimization

None

Auto Neighbor Group Configuration Feature Parameter

8.1.7 Possible Issues

None

8.2 ANGC for MLB

8.2.1 When to Use

When Inter-frequency MLB is activated on the network, it is recommended that ANGC for MLB be enabled for automatic configuration of the overlap indicator

EutranInterFreqNCell.OverlapInd.

8.2.2 Required Information

None

8.2.3 Planning

8.2.3.1 RF Planning

N/A

8.2.3.2 Network Planning

X2 interfaces are established between eNodeBs.

8.2.3.3 Hardware Planning

N/A

8.2.4 Deployment

8.2.4.1 Requirements

Other Features

N/A

Hardware

N/A

License

Table 8-5 License control item of ANGC for MLB Feature ID Feature

Name LicenseControl Item ID License Control Item NE Sales Unit LOFD-1102 19 Auto Neighbor Group Configuratio n LT1SMLBA GC00 Auto Neighbor Group Configuratio n

eNodeB Per Cell

8.2.4.2 Data Preparation and Feature Activation

8.2.4.2.1 Data Preparation

There are three types of data sources:

l Network plan (negotiation not required): parameter values planned and set by the operator

l Network plan (negotiation required): parameter values planned by the operator and negotiated with the EPC or peer transmission equipment

l User-defined: parameter values set by users

The following table describes the parameter that must be set in the CellAlgoSwitch MO to configure the ANGC switches for MLB.

Table 8-6 Parameters in the CellAlgoSwitch MO

Parameter Name Parameter ID Setting Notes Data Source MLB Auto Group Configuration Switch CellAlgoSwitch.M LBAutoGroupSwitc h The OverlapIndAutoS- witch option of this parameter must be selected when ANGC for MLB is enabled. Default/ Recommended value The MicroOverlapInd- Switch option of this parameter must be selected when automatic configuration of overlap indicators for micro cells is enabled.

Network plan (negotiation not required) Auto Neighbor Group Configuration Feature Parameter

Parameter Name Parameter ID Setting Notes Data Source The MicroGroupOverla pIndSwitch option of this parameter must be selected when automatic configuration of overlap indicators for a micro cell group needs to be enabled.

Network plan (negotiation not required)

The following table describes the parameters that must be set in the CellMlbAutoGroup MO to configure ANGC for MLB.

Table 8-7 Parameters in the CellMlbAutoGroup MO

Parameter Name Parameter ID Setting Notes Data Source Overlap Indicator Auto Sample Number CellMlbAutoGrou p.OverlapIndAutoS ampleNum This parameter determines the minimum number of samples required for calculating the overlap percentage. If the parameter is set to a small value (10 or less), a significant error may be caused in

calculating the overlap percentage. If the parameter is set to a large value, insufficient samples may be collected. The recommended value is 1000. If any modification is required, see 4.2.1.1 Operations in a Measurement Period. Radio planning (internal planning)

Parameter Name Parameter ID Setting Notes Data Source Statistic Period CellMlbAutoGrou

p.StatPeriod

This parameter specifies a period for collecting MRs when the function is enabled. The recommended value is at least one day (represented in minutes) to ensure that sufficient MRs are collected to cover the traffic distribution in one day.

Radio planning (internal planning)

Sleep Period CellMlbAutoGrou

p.SleepPeriod

This parameter specifies a sleep period for ANGC for MLB after the relevant calculation and configuration are finished at a time. In a sleep period, ANGC for MLB is disabled. If the network

topology changes in a sleep period, this function is enabled again after the sleep period ends. The recommended value is 1440.

Radio planning (internal planning) Auto Neighbor Group Configuration Feature Parameter

Parameter Name Parameter ID Setting Notes Data Source Additional Measurement Configuration CellMlbAutoGrou p.AddedMeasCfg This parameter determines whether to extend a measurement period for collecting more samples. If the number of samples collected in a measurement period does not meet the requirement when ANGC for MLB is enabled, supplementary measurement can be performed to collect sufficient samples. It is recommended that this parameter be set to

ALLOWED. If this parameter is set to

NOT_ALLOWED, the ANGC function may fail to collect sufficient MRs or evaluate the overlap percentage owing to insufficient samples.

Default/

Recommended value

Optimization Mode CellMlbAutoGrou p.OptMode

Set this parameter to FREE or CONTROLLED based on the operator's requirements. Default/ Recommended value

Parameter Name Parameter ID Setting Notes Data Source Overlap Indicator Addition Threshold CellMlbAutoGrou p.OverlapIndAddTh d This parameter specifies a threshold for adding overlap indicators. If ANGC for MLB is enabled, the eNodeB compares the calculated overlap percentage between an inter-frequency neighboring cell and the serving cell with this threshold. The eNodeB

automatically adds an overlap indicator to the neighboring cell if the overlap percentage is greater than or equal to the threshold.

Set this parameter based on the operator's

requirements for the overlap relationship.

Engineering design Auto Neighbor Group Configuration Feature Parameter

Parameter Name Parameter ID Setting Notes Data Source Overlap Indicator Deletion Threshold CellMlbAutoGrou p.OverlapIndDelTh d This parameter specifies a threshold for deleting overlap indicators. If ANGC for MLB is enabled, the eNodeB compares the calculated overlap percentage between an inter-frequency neighboring cell and the serving cell with this threshold. The eNodeB

automatically deletes the overlap indicator of the neighboring cell if the overlap percentage is less than the threshold. Set this parameter based on the operator's

requirements for the overlap relationship. Engineering design Micro Overlap Indicator Addition Threshold CellMlbAutoGrou p.MicroOverlapInd AddThd

Set this parameter based on the operator's

requirements for the overlap relationship. Engineering design Micro Overlap Indicator Deletion Threshold CellMlbAutoGrou p.MicroOverlapInd- DelThd

Set this parameter based on the operator's

requirements for the overlap relationship.

Engineering design

The eNodeBSonDBCfg MO specifies the time when the SON algorithm writes the overlap indicator change of the inter-frequency neighboring cell, which is generated by ANGC, into the database. The following table describes the parameter that must be set in this MO.

Table 8-8 Parameters in the eNodeBSonDBCfg MO

Parameter Name Parameter ID Setting Notes Data Source

Start Time eNodeBSonDBCfg.

StartTime

It is recommended that the

configuration of overlap indicators be updated in the early morning when the traffic is light.

Radio planning (internal planning)

8.2.4.2.2 Using the CME

l Fast Batch Activation

This feature can be batch activated using the Feature Operation and Maintenance function of the CME. For detailed operations, see the following section in the CME product documentation or online help: CME Management > CME Guidelines > Enhanced Feature Management > Feature Operation and Maintenance. l Single/Batch Configuration

This feature can be activated for a single eNodeB or a batch of eNodeBs on the CME. For detailed operations, see CME-based Feature Configuration.

8.2.4.2.3 Using MML Commands

Step 1 Run the MOD ENODEBSONDBCFG command to set the start time of modifying the overlap indicator of the inter-frequency neighboring cell.

Step 2 Run the MOD CELLALGOSWITCH command with the switch for automatic configuration of overlap indicators turned on to activate ANGC for MLB.

Step 3 Run the MOD CELLMLBAUTOGROUP command to set the parameters related to the function.

----End

In document Auto Neighbor Group Configuration(ERAN11.1_04) (Page 46-55)