add 2g neighbor cell(add g2gncell)docshare02.docshare.tips/files/24306/243066766.pdf · add 2g...

Add 2G Neighbor Cell(ADD G2GNCELL)Function

Use this command to add a 2G neighboring internal cell.

Note

When Current HO Control Algorithm in SET GCELLHOBASIC is set to HOALGORITHM1(Handover algorithm I), Inter-cell HO Hysteresis should be set within the range of 64-127. When Current HO Control Algorithm in SET GCELLHOBASIC is set to HOALGORITHM2(Handover algorithm II), Inter-cell HO Hysteresis should be set within the range of 0-127.

Parameters

Parameter ID Parameter Name

Parameter Description

IDTYPE Index Type

Meaning: Index type

GUI Value Range: BYNAME(By name), BYID(By index), BYCGI(By CGI)

Unit: None

Actual Value Range: BYNAME, BYID, BYCGI

MML Default Value: None

Recommended Value: None

https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/set-gcellhobasic.html




Parameter Relationship: None

Service Interrupted After Modification: No (And no impact on the UE in idle mode)

Impact on Network Performance: None

SRC2GNCELLID Source Cell Index

Meaning: A cell Index must be unique in one BSC

. It is used to uniquely identify a cell.

GUI Value Range: 0~2047

Unit: None

Actual Value Range: 0~2047




Service Interrupted After Modification: No (And



no impact on the UE in idle mode)


SRC2GNCELLNAME Source Cell Name

Meaning: Name of a cell.

Cell names cannot contain the following invalid characters:

, ; = " '

In addition, cell names cannot contain two or moreconsecutive %, two or more consecutive spaces, ormore than three consecutive +.

GUI Value Range: None

Unit: None

Actual Value Range: 1~64 characters








NBR2GNCELLID Neighbor2G Cell Index

Meaning: Uniform number of a cell index within aBSC

, which uniquely identifies a cell.


Unit: None









NBR2GNCELLNAME Neighbor2G Cell Name

Meaning: Name of a cell.

Cell names cannot contain the following invalid characters:

, ; = " '

In addition, cell names cannot contain two or moreconsecutive %, two or more consecutive spaces, ormore than three consecutive +.


Unit: None









SRCMCC Source Cell MCC

Meaning: Mobile country code (MCC) of the source cell


Unit: None







SRCMNC Source Cell MNC

Meaning: Mobile network code (MNC) of the source cell




Unit: None







SRCLAC Source Cell LAC

Meaning: Local area code (LAC) of the source cell

GUI Value Range: 1~65533, 65535

Unit: None

Actual Value Range: 1~65533, 65535








SRCCI Source Cell CI

Meaning: Source cell ID


Unit: None









NBRMCC Neighbour Cell MCC

Meaning: Mobile Country Code (MCC) of a neighboring cell


Unit: None









NBRMNC Neighbour Cell MNC

Meaning: Mobile Network Code (MNC) of a neighboring cell


Unit: None







NBRLAC Neighbour Cell LAC

Meaning: Local Area Code (LAC) of a neighboring cell




Unit: None







NBRCI Neighbour Cell CI

Meaning: Cell ID of a neighboring cell


Unit: None









NCELLTYPE Neighboring Cell Type

Meaning: The parameter indicates whether the neighboring cell is a handover neighboring cell, anIBCA neighboring cell, or a handover and IBCA neighboring cell of the serving cell. If the parameter is set to HANDOVERNCELL(Handover Neighboring Cell), the neighboring cell is the handover neighboring cell but not the IBCA neighboring cellof the serving cell. If the parameter is set to IBCANCELL(IBCA Neighboring Cell), the neighboring cell is the IBCA neighboring cell but not the handover neighboring cell of the serving cell. If the parameter is set to HANDOVERANDIBCANCELL(Handover and IBCA Neighboring Cell), the neighboring cell is the handover neighboring cell and IBCA neighboring cell of the serving cell. IBCA neighboring cells are some neighboring cells of a serving cell with its IBCA algorithm enabled. There is co-channel or adjacent-channel



interference between the IBCA neighboring cells and the serving cell. Handover neighboring cells are candidate target cells of the serving cell during a handover.

GUI Value Range: HANDOVERNCELL(Handover Neighboring Cell), IBCANCELL(IBCA Neighboring Cell), HANDOVERANDIBCANCELL(Handover and IBCA Neighboring Cell)

Unit: None

Actual Value Range: HANDOVERNCELL, IBCANCELL, HANDOVERANDIBCANCELL

MML Default Value: HANDOVERNCELL(Handover Neighboring Cell)

Recommended Value: HANDOVERNCELL(Handover Neighboring Cell)

Parameter Relationship: This parameter can be set to IBCANCELL(IBCA Neighboring Cell) or HANDOVERANDIBCANCELL(Handover and IBCA Neighboring Cell) only if IBCAALLOWED is set to YES(Yes) for a cell.





SRCHOCTRLSWITCH Current HO CTRL Algorithm in Source Cell

Meaning: Whether the currently used handover algorithm in the source cell is HO Algorithm I or HO Algorithm II

GUI Value Range: HOALGORITHM1(Handover algorithm I), HOALGORITHM2(Handover algorithm II)

Unit: None

Actual Value Range: HOALGORITHM1, HOALGORITHM2

MML Default Value: HOALGORITHM1(Handover algorithm I)

Recommended Value: HOALGORITHM1(Handover algorithm I)

Parameter Relationship: The value of this parameter must be the same as that of HOCTRLSWITCH in SET GCELLHOBASIC.






INTERCELLHYST Inter-cell HO Hysteresis

Meaning: Hysteresis value during the handovers between cells, This value is used to suppress ping-pong handovers between cells. The actual value of this parameter is equal to the GUI value minus 64.


Unit: dB

Actual Value Range: -64~63

MML Default Value: 68

Recommended Value: In densely populated urban areas, the recommended value is 68; in the suburbs, the recommended value is 72.

Parameter Relationship: When Current HO Control Algorithm in SET GCELLHOBASIC isset to HOALGORITHM1(Handover algorithm I), Inter-cell HO Hysteresis should be set within the range of 64-127.When Current HO Control Algorithm in SET GCELLHOBASIC is set to HOALGORITHM2(Handover algorithm II),





Inter-cell HO Hysteresis should be set within the range of 0-127.



MINOFFSET Min Access Level Offset

Meaning: Minimum receive level offset. MSs can be handed over to a neighboring cell when both of the following conditions are met:

Downlink receive level of the neighboring cell is greater than or equal to the sum of HOCDCMINDWPWR and the value of this parameter.

Uplink receive level of the neighboring cell is greater than or equal to the sum of HOCDCMINUPPWR and the value of this parameter.


Unit: dB





Recommended Value: 0

Parameter Relationship: This parameter is based on HOCDCMINDWPWR and HOCDCMINUPPWR. Different offset can be setfor different neighboring cells. The following condition must be met for a neighboring cell to be added into the candidate cell queue: Neighboring cell uplink level >= (HOCDCMINUPPWR + MINOFFSET); Neighboring cell downlink level >= (HOCDCMINDWPWR + MINOFFSET).



PBGTMARGIN PBGT HO Threshold

Meaning: Threshold for triggering PBGT handovers. PBGT handovers to a neighboring cell can be triggered when the following condition is met:Path loss in the serving cell - Path loss in the neighboring cell > Actual value of this parameter.If this parameter is set to a value less than 64, calls can be handed over back to a neighboring cell whose path loss is greater than that in the serving cell. The actual value of this parameter is equal to the GUI value minus 64.


Unit: dB





Recommended Value: In densely populated urban areas, the recommended value is 68; in the suburbs, the recommended value is 72.

Parameter Relationship: This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM1(Handover algorithm I) and PBGTHOEN in the SET GCELLHOBASIC command is set to YES(Yes).



BQMARGIN BQ HO Margin

Meaning: Difference between the downlink receive level of the serving cell and that of a neighboring cell during bad quality handovers. This parameter is used to calculate the bad quality handover hysteresis based on the following formula:

Bad quality handover hysteresis = Value of INTERCELLHYST -Value of this parameter

Bad quality handovers to a neighboring cell can betriggered when the following condition is met:






(Downlink receive level of the neighboring cell after filtering - Downlink receive level of the serving cell after power control compensation) > (Value of INTERCELLHYST - 64) - (Value of this parameter - 64). The actual value of this parameter is equal to the GUI value minus 64.


Unit: dB




Parameter Relationship: This parameter is used with INTERCELLHYST to calculate the bad quality handover hysteresis.



ISCHAINNCELL Chain Meaning: Whether the cell is a chain neighboring



NeighborCell

cell. The parameter is used in the quick handover algorithm. Quick handover aims to increase the handover success rate of an MS moving at a high speed and to ensure the call continuity and low calldrop rate. Quick handover applies to the scenario where an MS moves fast along an urban backbone road, a selected route, or a high-speed railroad. The target cell must be a chain neighboring cell.

GUI Value Range: NO(No), YES(Yes)

Unit: None

Actual Value Range: NO, YES

MML Default Value: NO(No)

Recommended Value: NO(No)




INTELEVHOHYST Adjacent Cell

Meaning: Hysteresis value during the handovers between cells on different layers or of different



Inter-layer HOHysteresis

priorities. This value is used to suppress inter-layerping-pong handovers. The actual value of this parameter is equal to the GUI value minus 64.


Unit: dB




Parameter Relationship: Inter-layer HO threshold of the serving cell = Inter-layer HO threshold - Inter-layer HO Hysteresis. Inter-layer HO threshold of the neighboring cell = Inter-layer HO threshold + Adjacent Cell Inter-layer HO Hysteresis - 64. The value of Inter-layer HO threshold can be set through SET GCELLHOBASIC.







DRHOLEVRANGE Directed Retry Handover Level Range

Meaning: Difference between the downlink receive level of the serving cell and that of a neighboring cell during handovers due to directed retry. In the case of Huawei handover algorithm II,this parameter is used to calculate the hysteresis ofhandovers due to directed retry based on the following formula:

Hysteresis of handovers due to directed retry = Value of INTERCELLHYST - Value of this parameter

Handovers due to directed retry to a neighboring cell can be triggered when the following condition is met:

(Downlink receive level of the neighboring cell after filtering - Downlink receive level of the serving cell after power control compensation) > (Value of INTERCELLHYST - 64) - (Value of this parameter - 64).If EDGEHOHYSTEN in the SET GCELLHOBASICcommand is set to YES, INTERCELLHYST is replaced by EDGEHOHYST.


Unit: dB







Parameter Relationship: 1. This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2 and DIRECTRYEN in the SET GCELLBASICPARA command is set to YES. 2. INTERCELLHYST and EDGEHOHYST together determine the direct retry handover hysteresis.



CHAINNCELLTYPE Chain Neighbour Cell Type

Meaning: This parameter indicates the geographical relationship between the neighboringcell and the serving cell. In the BSC, if direction A is selected, then the reverse direction is B.

GUI Value Range: QUICK_HO_NCELL_TYPE_A(QUICK_HO_NCELL_TYPE_A), QUICK_HO_NCELL_TYPE_B(QUICK_HO_NCELL_TYPE_B)

Unit: None

Actual Value Range: QUICK_HO_NCELL_TYPE_A,

https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/set-gcellbasicpara.html





QUICK_HO_NCELL_TYPE_B

MML Default Value: QUICK_HO_NCELL_TYPE_A(QUICK_HO_NCELL_TYPE_A)

Recommended Value: QUICK_HO_NCELL_TYPE_A(QUICK_HO_NCELL_TYPE_A)



Impact on Network Performance: The setting of this parameter depends on the actual physical location of the chain neighboring cell. Otherwise, fast PBGT handover fails.

EDGEADJSTATTIME Edge HOAdjCell Watch Time

Meaning: According to the P/N rule, if a neighbor cell meets the conditions for selecting the neighborcell for edge handover in P of N measurement reports, the edge handover to the neighbor cell is triggered.

This parameter specifies the number N.




Unit: 0.5s

Actual Value Range: 0.5~16



Parameter Relationship: This parameter is valid only if FRINGEHOEN in the SET GCELLHOBASIC command is set to YES(Yes).The parameter value must meet the following requirement:EDGEADJSTATTIME >= EDGEADJLASTTIME.



EDGEADJLASTTIME Edge HOAdjCell Valid Time

Meaning: According to the P/N rule, if a neighbor cell meets the conditions for selecting the neighborcell for edge handover in P of N measurement reports, the edge handover to the neighbor cell is triggered.

This parameter specifies the number P.






Unit: 0.5s




Parameter Relationship: This parameter is valid only if FRINGEHOEN in the SET GCELLHOBASIC command is set to YES(Yes). The parameter value must meet the following requirement: EDGEADJSTATTIME >= EDGEADJLASTTIME.


Impact on Network Performance: 1. If this parameter is set to a large value, an MS needs to wait a long time before performing a handover. As a result, voice quality deteriorates or the call drop rate increases. 2. If this parameter is set to a small value, an MS performs handovers frequently, leading to unnecessary handovers.

LEVSTAT Layer Meaning: The triggering of inter-layer handovers





HO Watch Time

must meet the P/N criteria. An inter-layer handover is triggered when P of N measurement reports meet the condition for inter-layer handovers. This parameter corresponds to the N in the P/N criteria.


Unit: 0.5s




Parameter Relationship: This parameter is valid only when HOCTRLSWITCH is set to HOALGORITHM1 and LEVHOEN is set to YES. The following condition must be met: LEVSTAT >= LEVLAST.


Impact on Network Performance: If this parameteris set to a large value, unnecessary handovers are performed, deteriorating the speech quality and



causing ping-pong handovers. If this parameter is set to a small value, congestion occurs in the macro cell.

LEVLAST Layer HO ValidTime

Meaning: The triggering of inter-layer handovers must meet the P/N criteria. An inter-layer handover is triggered when P of N measurement reports meet the condition for inter-layer handovers. This parameter corresponds to the P in the P/N criteria.


Unit: 0.5s




Parameter Relationship: This parameter is valid only when HOCTRLSWITCH is set to HOALGORITHM1 and LEVHOEN is set to YES. The following condition must be met: LEVSTAT >= LEVLAST.





Impact on Network Performance: If this parameteris set to a large value, congestion occurs in macro cells. If this parameter is set to a small value, unnecessary handovers are performed, deteriorating the speech quality and causing ping-pong handovers.

PBGTSTAT PBGT Watch Time

Meaning: The triggering of PBGT handovers must meet the P/N criteria. A PBGT handover is triggered when P of N measurement reports meet the condition for PBGT handovers. This parametercorresponds to the N in the P/N criteria.


Unit: 0.5s




Parameter Relationship: This parameter is valid only when HOCTRLSWITCH is set to HOALGORITHM1 and PBGTHOEN is set to YES. The following condition must be met:



PBGTSTAT >= PBGTLAST.


Impact on Network Performance: If this parameteris set to a large value, unnecessary handovers are likely to perform. If this parameter is set to a smallvalue, handovers are unlikely to perform in a timely manner, causing call drops.

PBGTLAST PBGT Valid Time

Meaning: The triggering of PBGT handovers must meet the P/N criteria. A PBGT handover is triggered when P of N measurement reports meet the condition for PBGT handovers. This parametercorresponds to the P in the P/N criteria.


Unit: 0.5s






Parameter Relationship: This parameter is valid only when HOCTRLSWITCH is set to HOALGORITHM1 and PBGTHOEN is set to YES. The following condition must be met: PBGTSTAT >= PBGTLAST.


Impact on Network Performance: If this parameteris set to a large value, handovers cannot be performed in a timely manner, causing call drops. If this parameter is set to a small value, unnecessary handovers are performed.

BETTERCELLSTATTIME Better Cell HO Watch Time

Meaning: Period during which handovers to a better cell are measured. According to the P/N rule, handovers to a better cell can be triggered when the conditions for handovers to a better cell are met for P seconds within N seconds. This parameter specifies N in the P/N rule.


Unit: 0.5s






Parameter Relationship: This parameter is valid only when BETTERCELLHOEN is set to YES and HOCTRLSWITCH is set to HOALGORITHM2. The following condition mustbe met: BETTERCELLSTATTIME >= BETTERCELLLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, unnecessary handovers are triggered. If this parameter is set to a small value, handovers cannot be performed in a timely manner, affecting voice quality or causing call drops.

BETTERCELLLASTTIME Better Cell HO Valid Time

Meaning: Period during which the conditions for handovers to a better cell are met. According to theP/N rule, handovers to a better cell can be triggered when the conditions for handovers to a better cell are met for P seconds within N seconds. This parameter specifies P in the P/N rule.


Unit: 0.5s






Parameter Relationship: This parameter is valid only when BETTERCELLHOEN is set to YES and HOCTRLSWITCH is set to HOALGORITHM2. The following condition mustbe met: BETTERCELLSTATTIME >= BETTERCELLLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, handovers cannot be performed in a timely manner, affecting voice quality or causing call drops. If this parameter is set to a small value, unnecessary handovers are triggered.

HOSTATICTIME Quick Handover Static Time

Meaning: According to the P/N rule, if the conditions for fast handover are met in P of N measurement reports, the handover is triggered.





Unit: 0.5s




Parameter Relationship: This parameter is valid only when QUICKHOEN in SET GCELLHOBASIC is set to YES. The following condition must be met: HOSTATICTIME >= HOLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, handovers cannot be performed in a timely manner, causing call drops. If this parameter is set to a small value, unnecessary handovers are triggered.

HOLASTTIME Quick Handover Last Time

Meaning: According to the P/N rule, if the conditions for fast handover are met in P of N measurement reports, the handover is triggered.







Unit: 0.5s




Parameter Relationship: This parameter is valid only when QUICKHOEN in SET GCELLHOBASIC is set to YES. The following condition must be met: HOSTATICTIME >= HOLASTTIME.



HCSSTATTIME HCS HO Watch Time

Meaning: According to the P/N rule, if the conditions for the handover to a different micro cell due to fast movement are met in P of N





measurement reports, the handover is triggered.



Unit: 0.5s




Parameter Relationship: This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2(Handover algorithm II) and QCKMVHOEN in the SET GCELLHOBASIC command is set to YES(Yes).The parameter value must meet the following requirement:HCSSTATTIME >= HCSLASTTIME.


Impact on Network Performance: If this parameter






is set to a large value, congestion occurs in macro cells. If this parameter is set to a small value, handovers cannot be performed in a timely manner, causing call drops or more handovers.

HCSLASTTIME HCS HO Valid Time

Meaning: According to the P/N rule, if the conditions for the handover to a different micro cell due to fast movement are met in P of N measurement reports, the handover is triggered.



Unit: 0.5s




Parameter Relationship: This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2(Handover algorithm II) and QCKMVHOEN in the SET GCELLHOBASIC command is set to YES(Yes).The parameter value must meet the following requirement:HCSSTATTIM >=






HCSLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, handovers cannot be performed in a timely manner, causing call drops or more handovers. If this parameter is set to a small value, congestion occurs in macro cells.

BQSTATTIME BQ HO Watch Time

Meaning: According to the P/N rule, if the conditions for emergency BQ handover are met in P of N measurement reports, the handover is triggered.



Unit: 0.5s






Parameter Relationship: This parameter is valid only when BQHOEN is set to YES and HOCTRLSWITCH is set to HOALGORITHM2. The following condition must be met: BQSTATTIME >= BQLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, unnecessary handovers are triggered. If this parameter is set to a small value, handovers cannot be performed in a timely manner, affecting voice quality or causing call drops.

BQLASTTIME BQ HO Valid Time

Meaning: According to the P/N rule, if the conditions for emergency BQ handover are met in P of N measurement reports, the handover is triggered.



Unit: 0.5s






Parameter Relationship: This parameter is valid only when BQHOEN is set to YES and HOCTRLSWITCH is set to HOALGORITHM2. The following condition must be met: BQSTATTIME >= BQLASTTIME.


Impact on Network Performance: If this parameteris set to a large value, handovers cannot be performed in a timely manner, affecting voice quality or causing call drops. If this parameter is set to a small value, unnecessary handovers are triggered.

TASTATTIME TA HO Watch Time

Meaning: The P/N criterion must be met for triggering a TA handover. That is, the TA handovercan be triggered only if P measurement reports among N measurement reports meet the triggering conditions. This parameter corresponds to N in theP/N criterion.


Unit: 0.5s



Actual Value Range: 0.5~0.8



Parameter Relationship: This parameter is valid only when TAHOEN is set to YES and HOCTRLSWITCH is set to HOALGORITHM2. The following condition must be met: TASTATTIME >= TALASTTIME.


Impact on Network Performance: If this parameteris set to a large value, an MS performs handovers frequently, leading to unnecessary handovers. If this parameter is set to a small value, an MS needs to wait a long time before performing a handover. As a result, voice quality deteriorates or the call drop rate increases.

TALASTTIME TA HO Valid Time

Meaning: The P/N criterion must be met for triggering a TA handover. That is, the TA handovercan be triggered only if P measurement reports among N measurement reports meet the triggering conditions. This parameter corresponds to P in the P/N criterion.




Unit: 0.5s




Parameter Relationship: This parameter is valid only when HOCTRLSWITCH is set to HOALGORITHM2 and TAHOEN is set to YES. The following condition must be met: TASTATTIME >= TALASTTIME.



ULBQSTATTIME UL BQ HO Static Time

Meaning: Period during which handovers without a downlink measurement report are measured. According to the P/N rule, handovers without a downlink measurement report can be triggered



when the conditions for handovers without a downlink measurement report are met for P seconds within N seconds. This parameter specifies N in the P/N rule.


Unit: 0.5s




Parameter Relationship: This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2(Handover algorithm II) and NODLMRHOEN in the SET GCELLHOEMG command is set to YES(Yes).The parameter value must meet the following requirement:ULBQSTATTIME >= ULBQLASTTIME.


https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/set-gcellhoemg.html





Impact on Network Performance: If this parameteris set to a large value, unnecessary handovers are triggered. If this parameter is set to a small value, handovers cannot be performed in a timely manner, causing call drops.

ULBQLASTTIME UL BQ HO Last Time

Meaning: Period during which the conditions for handovers without a downlink measurement report. According to the P/N rule, handovers without a downlink measurement report can be triggered when the conditions for handovers without a downlink measurement report are met for P seconds within N seconds. This parameter specifies P in the P/N rule.


Unit: 0.5s




Parameter Relationship: This parameter is valid only if HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2(Handover algorithm II) and NODLMRHOEN in the SET GCELLHOEMG command is set to YES(Yes).The parameter value

https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/set-gcellhoemg.html





must meet the following requirement:ULBQSTATTIME >= ULBQLASTTIME.



IBCADYNCMEASURENCELLALLOWED

IBCA Dyn Measure Neighbour Cell Flag

Meaning: Flag that indicates whether an IBCA neighboring cell is to be measured dynamically. This parameter is set to Yes if the information about a neighboring cell cannot be reported through measurement reports but the interference of the neighboring cell cannot be ignored. Otherwise, this parameter is set to No. This parameter is set to Yes for the neighboring cell with co-channel interference and the neighboring cells that cause interference, while this parameter is set to No for other neighboring cells.


Unit: None





Recommended Value: Set this parameter to YES for the neighboring cell with co-channel interference and the neighboring cell that cause interference; set this parameter to NO for other neighboring cells.

Parameter Relationship: This parameter is valid only if NCELLTYPE is set to IBCANCELL(IBCA Neighboring Cell) or HANDOVERANDIBCANCELL(Handover and IBCA Neighboring Cell).



IBCARXLEVOFFSET IBCA RxLev Offset

Meaning: Unmeasured receive level of IBCA neighboring cells. If the number of neighboring cells reported in consecutive N measurement reports (N is specified by IBCANONMEANCELLSTATNUM) is smaller than that of the actually configured neighboring cells, this parameter is used to estimate the unmeasured receive level of IBCA neighboring cells. The estimated value is equal to the value of IBCANCELLPATHLOSSESTIMATE or the signal level of the unmeasured IBCA neighboring cells is the measured signal level of the neighboring cells (including non-IBCA neighboring cells) minus the value of IBCARXLEVOFFSET.




Unit: dB




Parameter Relationship: This parameter is valid only if NCELLTYPE is set to IBCANCELL(IBCA Neighboring Cell) or HANDOVERANDIBCANCELL(Handover and IBCA Neighboring Cell).



LOADHOPBGTMARGIN Load HOPBGT Threshold

Meaning: Threshold for triggering load-based PBGT handovers. Load-based PBGT handovers to a candidate cell can be triggered when the path loss in the serving cell minus that in a candidate cell is greater than the value of this parameter. Thisparameter loosens the requirement of the load-based PBGT handover threshold when the load of



the serving cell reaches a specified level. Certain traffic that could not be handed over back to a neighboring cell during PBGT handovers can be handed over now. If this parameter is set to 0, enhanced load-based handovers to the neighboringcell cannot be triggered.


Unit: dB




Parameter Relationship: The parameter value cannot be larger than the value of PBGT HO Threshold. The parameter takes effect only when Enhanced Load HO Allowed is enabled.


Impact on Network Performance: If this parameteris set to a small value, unnecessary handovers are performed. If this parameter is set to a large value,



handovers are delayed, increasing the congestion rate in the serving cell.

NCELLPRI Neighboring Cell Priority

Meaning: Common priority of the neighboring 2G cell. Value 0 indicates the lowest priority, and value 7 indicates the highest priority. Value 255 is invalid.


Unit: None




Parameter Relationship: If this parameter is set to a value except 255, the value of this parameter must be different from the values of NCELLPRI of all neighboring UTRAN and EUTRAN cells, and UTRANPRI and EUTRANPRI of the serving cell.





EDOUTHOOFFSET Enhanced OutgoingCell Handover Offset

Meaning: Level offset for the serving cell when handovers to the edge of a neighboring cell are triggered.

When both Enhanced Outgoing Cell Handover Offset and EDGE HO Allowed are set to YES(Yes) for a cell, the BSC takes the value of this parameter into account when deciding to trigger an edge handover. That is, handovers to theedge of a neighboring cell can be triggered when either of the following condition is met:

Uplink receive level of the serving cell after powercontrol compensation < Value of ULEDGETHRES + Value of this parameter - 64

Downlink receive level of the serving cell after power control compensation < Value ofDLEDGETHRES + Value of this parameter - 64

In the case of Huawei handover algorithm II, handovers to a better neighboring cell can be triggered when both of the following conditions are met:

Enhanced Outgoing Cell Handover Offset is set to YES(Yes).

Receive level of the serving cell after power control compensation < Value of HOTHRES - (Value of LEVHOHYST + Value of this parameter - 64). The actual value of this parameteris equal to the GUI value minus 64.




Unit: None




Parameter Relationship: 1. This parameter is used with DLEDGETHRES or ULEDGETHRES to determine handovers to the edge of a neighboring cell only if both Enhanced Outgoing Cell Handover Offset and EDGE HO Allowed are set to YES(Yes). 2. This parameter is used with LEVHOHYST and HOTHRES to determine handovers to a better neighboring cell only if Enhanced Outgoing Cell Handover Offset is set to YES(Yes) and HOCTRLSWITCH is set to HOALGORITHM2(Handover algorithm II).



NCELLPUNEN Neighboring Cell Penalty Switch

Meaning: Whether to apply penalty on a neighboring cell when the PBGT handover, concentric cell handover, or hierarchical handover in handover algorithm I is triggered, or when the better cell handover in handover algorithm II is triggered. This prevents a call from experiencing



ping-pong handovers.


Unit: None



Recommended Value: NO(No)

Parameter Relationship: 1. If HOCTRLSWITCHin the SET GCELLHOBASIC command is set to HOALGORITHM1, and PBGTHOEN, LEVHOEN, CONHOEN are set to YES, this parameter is valid. 2. If HOCTRLSWITCH in the SET GCELLHOBASIC command is set to HOALGORITHM2, and BETTERCELLHOEN is set to YES, this parameter is valid.



NCELLPUNSTPTH Penalty Stop

Meaning: Level threshold used to stop the timer for performing penalties in a neighboring cell





Level Threshold

during the PBGT handover, concentric cell handover, or hierarchical handover in the case of Huawei handover algorithm I or during better cell handovers in the case of Huawei handover algorithm II.

If the BCCH receive level of the neighboring cell is lower than this threshold, the penalties will be stopped.


Unit: dB




Parameter Relationship: This parameter is valid only if NCELLPUNEN is set to YES(Yes).





NCELLPUNTM Penalty Timer Length

Meaning: Length of the timer for performing penalties in a neighboring cell during PBGT, concentric cell handover, or hierarchical handoversin the case of Huawei handover algorithm I or during better cell handovers in the case of Huawei handover algorithm II.


Unit: s







NCELLPUNLEV Level Penalty Value on

Meaning: Level for penalties in a neighboring cell during PBGT handover, concentric cell handover, or hierarchical handover in the case of Huawei



Neighboring Cell

handover algorithm I or during better cell handovers in the case of Huawei handover algorithm II.


Unit: dB







ADJHOOFFSET Quick Handover Offset for NeighborCell

Meaning: This parameter is used as the offset for HOOFFSET (for SET GCELLHOFAST in the case of internal neighboring cells or for MOD GEXT2GCELL in the case of external neighboring cells)during handover decision. Quickhandover can be triggered only when the path loss

https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/mod-gext2gcell.html


https://10.14.41.133/hedex/pages/OMC/01/274948209/01/resources/mbsc/m-mml/set-gcellhofast.html



difference between the serving cell and a chain neighboring cell is larger than the quick handover trigger threshold. The quick handover trigger threshold is the sum of HOOFFSET(for SET GCELLHOFAST in the case of internal neighboring cells or for MOD GEXT2GCELL in the case of external neighboring cells) and ADJHOOFFSET configured by the neighboring cell.


Unit: dB




Parameter Relationship: The sum of ADJHOOFFSET and HOOFFSET (for SET GCELLHOFAST in the case of internal neighboring cells or for MOD GEXT2GCELL in the case of external neighboring cells) should be less than or equal to 127. If the sum is greater than 127, it is processed as 127.











Impact on Network Performance: If this parameteris set to a large value, call drops occur because the handover is not performed in a timely manner.

EDGEHOHYST Edge HOHysteresis

Meaning: Hysteresis used for an inter-cell handover decision when handover algorithm II is used. For an MS with low receive level, the receive level of the neighboring cell must be higher than the receive level of the serving cell plus the value of this parameter.


Unit: dB




Parameter Relationship: This parameter is valid only if EDGEHOHYSTEN in SET GCELLHOBASIC is set to YES(Yes). The value of this parameter must be less than or equal to INTERCELLHYST.






Impact on Network Performance: If this parameteris set to a large value, the number of handover requests sent by the MS with low receive level decreases. If this parameter is set to a small value, the number of handover requests sent by the MS with low receive level increases.

Example

To add a neighboring cell (IDTYPE = Index Type , Source Cell Name = Cell000, Neighbor 2G Cell Name = cell002; Inter-cell HO Hysteresis = 50; Min Access Level Offset = 60; Adjacent Cell Inter-layer HO Hysteresis = 68), run the following command:ADD G2GNCELL: IDTYPE=BYNAME, SRC2GNCELLNAME="Cell000", NBR2GNCELLNAME="cell002", NCELLTYPE=HANDOVERNCELL, INTERCELLHYST=50, MINOFFSET=60, INTELEVHOHYST=68;

add 2g neighbor cell(add g2gncell)docshare02.docshare.tips/files/24306/243066766.pdf · add 2g...

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