Set Basic Parameters of Cell Handover(SET CELLHOBASIC)

Meaning:Index Type

Value range:BYNAME(By Name),BYIDX(By Index)

Explanation: Index Type.

Default value:None

Meaning:Cell Index

Value range:0~2047

Explanation: This parameter indicates the source cell index. The source cell index must be unique.

Default value:None

Meaning:Cell Name

Value range:1-32 characters

Explanation: This parameter indicates the name of the source cell. The name of each cell under one BSC must be unique.

Default value:None

Meaning:HO Control Switch

Value range:HOALGORITHM1(HO Algorithm I),HOALGORITHM2(HO Algorithm II)

Explanation:This parameter specifies whether HO Algorithm I or HO Algorithm II is valid.

Default value:None

Meaning:Co-BSC/MSC Adj

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether to adjust the sequence of candidate cells. After the sequence is adjusted, the handover within the same BSC/MSC takes priority.

Default value:None

Meaning:SDCCH HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether a handover between signaling channels is enabled.

Default value:None

Meaning:Intracell HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the intra-cell handover is enabled. Note: A forced intra-cell handover is not subject to this parameter.

Default value:None

Meaning:Intracell F-H HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the AMR handover is enabled. This parameter does not affect the dynamic non-AMR full-rate to half-rate handover.

Default value:None

Meaning:Load HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether a traffic load-sharing handover is enabled.

The load handover helps to reduce cell congestion, improve success rate of channel assignment, and balance the traffic load among cells, thus improving the network performance. The load handover functions between the TCHs within one BSC or the TCHs in the cells of the same layer.

The load handover is used as an emergency measure instead of a primary measure to adjust abnormal traffic burst in partial areas. If load handovers occur frequently in a partial area, the cell and TRX configuration of BTSs and the network layout should be adjusted.

Default value:None

Meaning:MS Fast Moving HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether an MS that moves fast in a micro cell can be handed over to a macro cell. If this parameter is set to Yes, the MS that moves fast in a micro cell can be handed over to a macro cell, thus reducing the number of handovers. It is recommended that this handover be applied only in special areas such as highways to reduce the CPU load. The fast-moving micro-to-macro cell handover algorithm is used only in special conditions.

Default value:None

Meaning:Rx_Level_Drop HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether to enable the rapid level drop handover. When this function is enabled, an MS can be handed over to a new cell before the occurrence call drop caused by the rapid drop of the receive level of the MS.

Default value:None

Meaning:PBGT HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether to enable the PBGT (POWER BUDGET) handover algorithm. Based on the path loss, the BSC uses the PBGT handover algorithm to search for a desired cell in real time and decides whether a handover should be performed. The cell must have less path loss and meet specific requirements. To avoid ping-pong handovers, the PBGT handover can be performed only on TCHs between the cells of the same layer and hierarchy. The PBGT handover cannot be performed on SDCCHs.

Default value:None

Meaning:Level HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the layered hierarchical handover is enabled. Cells are set to different layers and different priorities to implement the layered hierarchical handover. Then, based on the layers and priorities, calls are handed over to the cells with high priority (priority is related to Layer of the Cell and Cell Priority).

Default value:None

Meaning:Edge HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether to enable the edge handover algorithm. When an MS makes a call at the edge of a cell, the call may drop if the receive level is too low. To avoid such a call drop, an edge handover can be performed. When the UL receive level of the serving cell is lower than the Edge HO UL RX_LEV Threshold or the DL receive level of the serving cell is lower than the Edge HO DL RX_LEV Threshold, the MS is handed over to a neighbor cell.

Default value:None

Meaning:BQ HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the bad quality (BQ) handover is enabled. Whether a BQ handover should be enabled depends on the UL and DL transmission quality (BER). When the UL signal quality or the DL signal quality exceeds the BQ handover threshold. a BQ emergency handover is performed. A rise in BER may result from too low a signal level or channel interference.

Default value:None

Meaning:TA HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the time advance (TA) handover is enabled. The TA handover determines whether the timing advance (TA) is higher than the predefined TA threshold. When the TA is higher than the predefined TA threshold, a TA handover is triggered. The TA is calculated based on the distance between the MS and the BTS. The longer the distance is, the greater the TA value is.

Default value:None

Meaning:Concentric Circles HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the concentric cell handover is enabled. The concentric cell is used to achieve the wide coverage of the UL subcell and the aggressive frequency reuse of the OL subcell. The concentric cell handover can improve system capacity and conversation quality. The concentric cell handover can be classified into the UL subcell to OL subcell handover and the OL subcell to UL subcell handover.

Default value:None

Meaning:Interference HO Allowed

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the interference handover is enabled.

When the receive level is higher the receive level threshold but the transmission quality is lower than the interference handover quality threshold, the interference handover is triggered. In other words, the MS is interfered and needs to be handed over.

Default value:None

Meaning:Edge HO UL RX_LEV Threshold

Value range:0~63

Explanation: If the UL receive level remains lower than the Edge HO UL RX_LEV Threshold for a period, the edge handover is triggered. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased. If the PBGT handover is not enabled and the edge handover threshold is not properly set, cross coverage, co-channel interference, and adjacent channel interference are likely to occur. The Edge HO UL RX_LEV Threshold should be adjusted based on the handover performance statistics and the actual network performance to achieve the UL/DL balance.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:Edge HO DL RX_LEV Threshold

Value range:0~63

Explanation: If the DL receive level remains lower than the Edge HO DL RX_LEV Threshold for a period, the edge handover is triggered. If the PBGT handover is enabled, the relevant edge handover threshold can be decreased. If the PBGT handover is not enabled and the edge handover threshold is not properly set, cross coverage, co-channel interference, and adjacent channel interference are likely to occur. The Edge HO DL RX_LEV Threshold should be adjusted based on the handover performance statistics and the actual network performance to achieve the UL/DL balance.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:Edge HO Watch Time[0.5s]

Value range:1~16

Explanation: According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for N consecutive seconds within P seconds, an edge handover is triggered.

This parameter corresponds to P of the P/N criterion.

Default value:None

Meaning:Edge HO Valid Time[0.5s]

Value range:1~16

Explanation: According to the P/N criterion, if the UL or DL receive level is lower than its corresponding edge handover threshold for N consecutive seconds within P seconds, an edge handover is triggered.

This parameter corresponds to N of the P/N criterion.

Default value:None

Meaning:Layer HO Watch Time[s]

Value range:1~16

Explanation: According to the P/N criterion, if the signals in the candidate cell are better than those in the serving cell for N consecutive seconds within P seconds, a layered hierarchical handover is triggered.

This parameter corresponds to P of the P/N criterion.

Default value:None

Meaning:Layer HO Valid Time[s]

Value range:1~16

Explanation: According to the P/N criterion, if the signals in the candidate cell are better than those in the serving cell for N consecutive seconds within P seconds, a layered hierarchical handover is triggered.

This parameter corresponds to N of the P/N criterion.

Default value:None

Meaning:PBGT Watch Time[s]

Value range:1~16

Explanation: According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of PBGT handover for N consecutive seconds within P seconds, a PBGT handover is triggered and the MS is handed over to the adjacent cell.

This parameter corresponds to P of the P/N criterion.

Default value:None

Meaning:PBGT Valid Time[s]

Value range:1~16

Explanation: According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of PBGT handover for N consecutive seconds within P seconds, a PBGT handover is triggered and the MS is handed over to the adjacent cell.

This parameter corresponds to N of the P/N criterion.

Default value:None

Meaning:Intracell F-H HO Stat Time[s]

Value range:1~16

Explanation: This parameter determines the period during which the triggering conditions of the intra-cell full-rate to half-rate handover are met.

The intra-cell full-rate to half-rate handover must conform to the P/N criterion. That is, the triggering conditions of the intra-cell full-rate to half-rate handover are met for N consecutive seconds with P measurement seconds.

This parameter corresponds to P of the P/N criterion. The triggering conditions of the intra-cell full-rate to half-rate handover are the F2H HO Threshold or the H2F HO Threshold. This parameter is used with the two parameters.

Default value:None

Meaning:Intracell F-H HO Last Time[s]

Value range:1~16

Explanation: The intra-cell full-rate to half-rate handover must conform to the P/N criterion. That is, the triggering conditions of the intra-cell full-rate to half-rate handover are met for N consecutive seconds with P measurement seconds.

This parameter corresponds to N of the P/N criterion. The triggering conditions of the intra-cell full-rate to half-rate handover are the F2H HO Threshold or the H2F HO Threshold. This parameter is used with the two parameters.

Default value:None

Meaning:F2H HO Threshold

Value range:0~39

Explanation: This parameter specifies the threshold of the full-rate TCH to half-rate TCH handover. When an AMR call occupies a full-rate TCH, an intra-cell full-rate TCH to half-rate TCH handover is triggered if the radio quality indication (RQI) remains higher than the configured F2H HO Threshold for a predefined period. This parameter is used with the Intracell F-H HO Stat Time and the Intracell F-H HO Last Time.

Default value:None

Meaning:H2F HO Threshold

Value range:0~39

Explanation: This parameter specifies the threshold of the half-rate TCH to full-rate TCH handover. When an AMR call occupies a half-rate TCH, an intra-cell half-rate TCH to full-rate TCH handover is triggered if the radio quality indication (RQI) remains lower than the configured H2F HO Threshold for a predefined period. This parameter is used with the Intracell F-H HO Stat Time and the Intracell F-H HO Last Time.

Default value:None

Meaning:Inter-layer HO Threshold

Value range:0~63

Explanation: This parameter is one bit of the 16 bits that are used by the BSC to sort the candidate cells for handovers.

If the DL receive level of a cell is lower than the Inter-layer HO Threshold, the cell is listed in the candidate cells based on the receive level. The cell takes a low priority for handovers.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:Inter-layer HO Hysteresis

Value range:0~63

Explanation: This parameter specifies the hysteresis of an inter-layer or inter-priority handover. This parameter is used to avoid inter-layer ping-pong handovers.

Actual Inter-layer HO Threshold of a serving cell = configured Inter-layer HO Threshold - Inter-layer HO Hysteresis

Actual Inter-layer HO Threshold of an adjacent cell = configured Inter-layer HO Threshold + Inter-layer HO Hysteresis of an adjacent cell - 64.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:Min UL Level on Candidate Cell

Value range:dBm0(-110dBm),dBm1(-109dBm),dBm2(-108dBm),dBm3(-107dBm),dBm4(-106dBm),dBm5(-105dBm),dBm6(-104dBm),dBm7(-103dBm),dBm8(-102dBm),dBm9(-101dBm),dBm10(-100dBm),dBm11(-99dBm),dBm12(-98dBm),dBm13(-97dBm),dBm14(-96dBm),dBm15(-95dBm),dBm16(-94dBm),dBm17(-93dBm),dBm18(-92dBm),dBm19(-91dBm),dBm20(-90dBm),dBm21(-89dBm),dBm22(-88dBm),dBm23(-87dBm),dBm24(-86dBm),dBm25(-85dBm),dBm26(-84dBm),dBm27(-83dBm),dBm28(-82dBm),dBm29(-81dBm),dBm30(-80dBm),dBm31(-79dBm),dBm32(-78dBm),dBm33(-77dBm),dBm34(-76dBm),dBm35(-75dBm),dBm36(-74dBm),dBm37(-73dBm),dBm38(-72dBm),dBm39(-71dBm),dBm40(-70dBm),dBm41(-69dBm),dBm42(-68dBm),dBm43(-67dBm),dBm44(-66dBm),dBm45(-65dBm),dBm46(-64dBm),dBm47(-63dBm),dBm48(-62dBm),dBm49(-61dBm),dBm50(-60dBm),dBm51(-59dBm),dBm52(-58dBm),dBm53(-57dBm),dBm54(-56dBm),dBm55(-55dBm),dBm56(-54dBm),dBm57(-53dBm),dBm58(-52dBm),dBm59(-51dBm),dBm60(-50dBm),dBm61(-49dBm),dBm62(-48dBm),dBm63(-47dBm)

Explanation: The M criterion supports the minimum value constraint of uplink receive level of the adjacent cell.

Expected uplink level of the adjacent cell >= (Min UP Power on HO Candidate Cell + Min Access Level Offset)

The M criterion is met if the Filtered downlink level of the adjacent cell >= (Min DL Power on HO Candidate Cell + Min Access Level Offset); otherwise, the M criterion is not met.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:Min DL Level on Candidate Cell

Value range:0~63

Explanation: The M criterion supports the minimum value constraint of downlink receive level of an adjacent cell.

Filtered downlink level of the adjacent cell >= (Minimum downlink power of the candidate cell for handover + Minimum access level offset)

The M criterion is met if the Filtered uplink level of the adjacent cell >= (Minimum uplink power of the candidate cell for handover + Minimum access level offset); otherwise, the M criterion is not met.

The value of this parameter ranges from 0 to 63 (corresponding to -110 dBm to -47 dBm).

Default value:None

Meaning:TIGHT BCCH HO Watch Time[s]

Value range:0~16

Explanation: This parameter corresponds to P of the P/N criterion for the TIGHT BCCH handover.

Default value:None

Meaning:TIGHT BCCH HO Valid Time[s]

Value range:0~16

Explanation: This parameter corresponds to N of the P/N criterion for the TIGHT BCCH handover.

Default value:None

Meaning:Quick handover enable

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the quick handover is enabled.

Default value:None

Meaning:Concentric Circles ATCB HO Allowed

Value range:NO(Close),YES(Open)

Explanation: This parameter specifies the switch of the ATCB handover algorithm. The ATCB handover algorithm can determine the coverage areas of the OL subcell and the UL subcell and balance the load between the OL subcell and the UL subcell and between the UL subcell and the adjacent subcell according to the actual networking. It can decrease the interference, improve the conversation quality, and achieve the aggressive frequency reuse of the OL subcell.

0: Close

1: Open.

Default value:None

Meaning:Edge HO AdjCell Watch Time[0.5s]

Value range:0~16

Explanation: According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for N consecutive seconds within P seconds, an edge handover to the adjacent cell is triggered.

This parameter corresponds to P of the P/N criterion.

Default value:None

Meaning:Edge HO AdjCell Valid Time[0.5s]

Value range:0~16

Explanation: According to the P/N criterion, if the adjacent cell keeps meeting the triggering conditions of edge handover for N consecutive seconds within P seconds, an edge handover to the adjacent cell is triggered.

This parameter corresponds to N of the P/N criterion.

Default value:None

Meaning:TA HO watch time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a TA handover. That is, the TA handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Every 0.48s a measurement report is submitted. Therefore, the unit is 0.5s.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:TA HO valid time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a TA handover. That is, the TA handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:BQ HO watch time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a BQ handover. That is, the BQ handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:BQ HO valid time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a BQ handover. That is, the BQ handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:HCS HO watch time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a fast movement handover from a micro cell to a macro cell. That is, such a handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:HCS HO valid time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a fast movement handover from a micro cell to a macro cell. That is, such a handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:Interfere HO static time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering an interference handover. That is, the interference handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:Interfere HO valid time[0.5 s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering an interference handover. That is, the interference handover can be triggered only if P measurement reports among N measurement reports meet the triggering conditions. Measurement reports are submitted every 0.48s. Therefore, the unit here is set to 0.5s.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:Better cell handover enable

Value range:NO(NO),YES(YES)

Explanation:This parameter specifies whether to enable the better cell handover algorithm.

Yes: permitted; No: not permitted.

Default value:None

Meaning:Better Cell HO Watch Time[s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a better cell handover. That is, such a handover can be triggered only if the triggering conditions are met for P seconds in N seconds.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:Better Cell HO Valid Time[s]

Value range:0~16

Explanation:The P/N criterion must be met for triggering a better cell handover. That is, such a handover can be triggered only if the triggering conditions are met for P seconds in N seconds.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:UL BQ HO static time[0.5 s]

Value range:1~8

Explanation:The P/N criterion must be met for triggering a UL BQ handover. That is, such a handover can be triggered only if the triggering conditions are met P times among N times.

This parameter corresponds to N in the P/N criterion.

Default value:None

Meaning:UL BQ HO last time[0.5 s]

Value range:1~8

Explanation:The P/N criterion must be met for triggering a UL BQ handover. That is, such a handover can be triggered only if the triggering conditions are met P times among N times.

This parameter corresponds to P in the P/N criterion.

Default value:None

Meaning:AMR F-H Ho Allowed

Value range:NO(NO),YES(YES)

Explanation:This parameter specifies whether the BSC initiates an AMR TCHF-TCHH load handover.

Default value:None

Meaning:AMR F-H Traffic Threshold

Value range:0~100

Explanation:When the load of a cell exceeds this threshold, the BSC initiates an AMR TCHF-TCHH handover.

When the load of the network exceeds this threshold, some calls may be handed over from TCHF to TCHH.

Default value:None

Meaning:F-H Ho Duration[s]

Value range:0~600

Explanation:If the load of a cell exceeds the threshold, the BSC hands over all the qualified calls in the cell from TCHF to TCHH during the time specified by this parameter.

Default value:None

Meaning:F-H Ho Period[s]

Value range:0~600

Explanation:The value range of this parameter is the same as that of IntraCell TCHF-TCHH Ho Duration(s), and the value of this parameter must be smaller than that of IntraCell TCHF-TCHH Ho Duration(s).

Default value:None

Meaning:AMR F-H Ho Pathloss Adjust Step

Value range:0~255

Explanation:This parameter, along with the IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step and the time elapsing after the TCHF-TCHH handover, determines the current pass loss offset, which is used for selecting users for TCHF-TCHH handover.

Default value:None

Meaning:AMR F-H Ho ATCB Adjust Step

Value range:0~255

Explanation:This parameter, along with the IntraCell TCHF-TCHH Ho Period(s) and the time elapsing after the TCHF-TCHH handover is triggered, determines the current ATCB offset, which is used for selecting users for TCHF-TCHH handover.

Default value:None

Meaning:AMR F-H Ho Pathloss Threshold

Value range:0~255

Explanation:This parameter, along with the IntraCell TCHF-TCHH Ho Period(s), time elapsing after the TCHF-TCHH handover is triggered, and IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step, determines the current pass loss.

Default value:None

Meaning:F-H Pathloss Offset Overlay

Value range:0~255

Explanation:This parameter specifies the difference of pass loss between the overlaid subcell and the underlaid subcell.

Default value:None

Meaning:AMR F-H Ho ATCB Threshold

Value range:0~255

Explanation:If the ATCB of an AMR full-rate call is equal to or higher than this threshold, the call meets a condition for AMR TCHF-TCHH handover.

Default value:None

Meaning:F-H ATCB Offset Overlay

Value range:0~255

Explanation:This parameter specifies the ATCB difference between the overlaid subcell and the underlaid subcell.

Default value:None

Meaning:AMR F-H Ho Qual. Threshold

Value range:0~7

Explanation:This parameter specifies the quality threshold for AMR TCHF-TCHH handover.

Default value:None

Meaning:F-H Ho Stat. Time[s]

Value range:1~16

Explanation:During the time specified by this parameter, a TCHF-TCHH handover is triggered if the IntraCell TCHF-TCHH Ho Last Time(s) of a call meets the triggering conditions.

This parameter is used along with the IntraCell TCHF-TCHH Ho Last Time(s). They are equivalent to P and N in the P/N criterion.

Default value:None

Meaning:F-H Ho Last Time[s]

Value range:1~16

Explanation:During the time specified by this parameter, a TCHF-TCHH handover is triggered if the IntraCell TCHF-TCHH Ho Last Time(s) of a call meets the triggering conditions.

This parameter is equivalent to the values of P and N in P/N criterion.

Default value:None

Meaning:AMR H-F Traffic Threshold

Value range:0~100

Explanation:When the load of a cell is lower than this threshold, the BSC initiates an AMR TCHH-TCHF handover.

When the load of the network is lower than this threshold, the BSC initiates an AMR TCHH-TCHF handover. If the value of this parameter is too small, TCHH calls exist when the load of the network is light and thus the MOS may be decreased.

Default value:None

Meaning:AMR H-F Qaul. Ho Allowed

Value range:NO(NO),YES(YES)

Explanation:This parameter specifies whether to allow an AMR TCHH-TCHF handover due to quality.

Default value:None

Meaning:H-F Ho Duration[s]

Value range:0~600

Explanation:If the load of a cell exceeds the threshold, the BSC hands over all the qualified calls in the cell from TCHH to TCHF during the time specified by this parameter.

Default value:None

Meaning:AMR H-F Ho ATCB Threshold

Value range:0~255

Explanation:If the ATCB of an AMR full-rate call is lower than this threshold, the call meets a condition for AMR TCHH-TCHF handover.

The greater the ATCB value, the shorter the distance between the MS and the cell center.

Default value:None

Meaning:H-F ATCB Offset Overlay

Value range:0~255

Explanation:This parameter specifies the ATCB difference between the overlaid subcell and the underlaid subcell.

This parameter, along with the IntraCell AMR TCHH-TCHF Ho ATCB Threshold, determines whether a condition for deciding a TCHH-TCHF handover is met.

Default value:None

Meaning:AMR H-F Ho Pathloss Threshold

Value range:0~255

Explanation:When the path loss of an AMR full-rate call is higher than this threshold, the call meets a condition for AMR TCHH-TCHF handover.

This parameter, along with the IntraCell AMR TCHH-TCHF Ho ATCB Threshold and IntraCell AMR TCHF-TCHH Ho Qual. Threshold, determines whether to trigger an AMR TCHH-TCHF handover.

Default value:None

Meaning:H-F Pathloss Offset Overlay

Value range:0~255

Explanation:This parameter specifies the difference of pass loss between the overlaid subcell and the underlaid subcell.

This parameter, along with the IntraCell AMR TCHH-TCHF Ho Pathloss Threshold, determines whether a condition for deciding a TCHH-TCHF handover is met.

Default value:None

Meaning:AMR H-F Ho Qual. Threshold

Value range:0~7

Explanation:This parameter specifies the quality threshold for AMR TCHH-TCHF handover.

This parameter is one of the triggering conditions. When the MS receive quality is higher than the receive quality threshold of AMR TCHH-TCHF handover, the AMR TCHH-TCHF handover is triggered. 0-7: represents the eight levels of receive quality.

The meanings of levels 0-7 are as follows:

Level 0: BER smaller than 0.2%

Level 1: BER ranging from 0.2% to 0.4%

Level 2: BER ranging from 0.4% to 0.8%

Level 3: BER ranging from 0.8% to 1.6%

Level 4: BER ranging from 1.6% to 3.2%

Level 5: BER ranging from 3.2% to 6.4%

Level 6: BER ranging from 6.4% to 12.8%

Level 7: BER larger than 12.8%.

Default value:None

Meaning:H-F Ho Stat. Time[s]

Value range:1~16

Explanation:This parameter indicates that if the IntraCell TCHH-TCHF Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH switchover is triggered.

This parameter, used with IntraCell TCHH-TCHF Ho Last Time(s), equals the P and N values defined in the P/N criterion. If the IntraCell TCHF-TCHH Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH handover is triggered.

Default value:None

Meaning:H-F Ho Last Time[s]

Value range:1~16

Explanation:This parameter indicates that if the IntraCell TCHH-TCHF Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH switchover is triggered.

This parameter, used with IntraCell TCHH-TCHF Ho Stat Time(s), equals the P and N values defined in the P/N criterion. If the IntraCell TCHF-TCHH Ho Last Time meets the conditions for triggering AMR TCHF-TCHH handover within the IntraCell TCHF-TCHH Ho Stat. Time, the AMR TCHF-TCHH handover is triggered.

Default value:None

Meaning:Non-AMR F-H Ho Allowed

Value range:NO(NO),YES(YES)

Explanation:This parameter specifies whether the non-AMR TCHF-TCHH handover is allowed.

Default value:None

Meaning:Non-AMR F-H Traffic Threshold

Value range:0~100

Explanation:When the cell load is equal to or greater than this threshold, the BSC enables the non-AMR TCHF-TCHH handover.

When the network load is greater than this threshold, the BSC triggers the TCHF-TCHH handover.

Default value:None

Meaning:Non-AMR F-H Ho Pathloss Adjust Step

Value range:0~255

Explanation:This parameter, together with IntraCell TCHF-TCHH Ho Period, determines the path loss offset. Path loss offset = (TCHF-TCHH handover duration/IntraCell TCHF-TCHH Ho Period +1) x IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step If MS path loss < path loss threshold + path loss offset, you can infer that the MS meets Intracell TCHF-TCHH Ho Passloss Threshold.

Default value:None

Meaning:Non-AMR F-H Ho ATCB Adjust Step

Value range:0~255

Explanation:This parameter, together with IntraCell TCHF-TCHH Ho Period, determines the value of ATCB offset. ATCB offset = (TCHF-TCHH handover duration/IntraCell TCHF-TCHH Ho Period + 1) x IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step If MS ATCB > ATCB threshold - ATCB offset, you can infer that the MS meets the ATCB threshold.

Default value:None

Meaning:Non-AMR F-H Ho Pathloss Threshold

Value range:0~255

Explanation:If the non-AMR full-rate speech path loss is smaller than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.

If MS path loss < path loss threshold + path loss offset, you can infer that the MS meets the path loss threshold.

Default value:None

Meaning:Non-AMR F-H Ho ATCB Threshold

Value range:0~255

Explanation:If the non-AMR full-rate speech ATCB is larger than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.

If MS ATCB > ATCB threshold - ATCB offset, you can infer that the MS meets the ATCB threshold.

Default value:None

Meaning:Non-AMR F-H Ho Qual. Threshold

Value range:0~7

Explanation:If the MS receive quality is smaller than the receive quality threshold, you can infer that the MS meets the receive quality threshold.

Default value:None

Meaning:Non-AMR H-F Traffic Threshold

Value range:0~100

Explanation:When the cell load is equal to or smaller than this threshold, the BSC enables the non-AMR TCHH-TCHF handover.

When the network load is smaller than this threshold, the BSC hand over all half-rate MSs to full-rate services.

Default value:None

Meaning:Non-AMR H-F Qaul. Ho Allowed

Value range:NO(NO),YES(YES)

Explanation:This parameter specifies whether to allow the non-AMR TCHH-TCHF handover triggered by the quality problem.

Default value:None

Meaning:Non-AMR H-F Ho ATCB Threshold

Value range:0~255

Explanation:If the non-AMR full-rate speech ATCB is smaller than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.

Default value:None

Meaning:Non-AMR H-F Ho Pathloss Threshold

Value range:0~255

Explanation:If the non-AMR full-rate speech path loss is larger than or equal to this threshold, the MS meets the conditions for non-AMR TCHF-TCHH handover.

When the MS path loss is larger than the path loss threshold, the MS meets the conditions for TCHH-TCHF handover. This parameter, together with the ATCB threshold and receive quality threshold, determines the TCHH-TCHF handover.

Default value:None

Meaning:Non-AMR H-F Ho Qual. Threshold

Value range:0~7

Explanation:This parameter specifies the quality threshold for non-AMR TCHH-TCHF handover.

If the MS receive quality is higher than the receive quality threshold, the MS meets the conditions for TCHH-TCHF handover.

Default value:None

Meaning:Inter-RAT Out BSC Handover Enable

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the handover from a 2G cell to a 3G cell is allowed.

Default value:None

Meaning:Inter-RAT In BSC Handover Enable

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the handover from a 3G cell to a 2G cell is allowed.

Default value:None

Meaning:Inter-RAT Cell Reselection Enable

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the cell reselection from a 2G cell to a 3G cell is allowed.

Default value:None

Meaning:Pathloss Ho. Enable

Value range:NO(NO),YES(YES)

Explanation: This parameter specifies whether the candidate cells are selected considering the path loss in the better cell handover algorithm.

Default value:None

Meaning:Edge HO Watch Time[s]

Value range:1~16

Explanation: This parameter indicates the interval when the UL and DL receive level are measured to decide whether an edge handover should be triggered.

Default value:None

Meaning:Edge HO Valid Time[s]

Value range:1~16

Explanation: During the edge handover statistical time, the UL/DL receive level should remain lower than the corresponding UL/DL edge handover threshold for a period. This parameter indicates the period.

Default value:None

Meaning:Edge HO AdjCell Watch Time[s]

Value range:0~16

Explanation: This parameter indicates the watch time (unit: seconds) of the edge handover between adjacent cells.

Default value:None

Meaning:Edge HO AdjCell Valid Time[s]

Value range:0~16

Explanation: This parameter indicates the valid time (unit: seconds) of the edge handover between adjacent cells.

Default value:None