61840841 handover-parameter

Handover Data
l Basic Handover Parameters
l HO Control
l Cell HO Data
l Concentric Data
l Filter/Penalty Data
l Emergency HO Data
l UTRAN FDD HO Data
l UTRAN TDD HO Data
l Fast HO Parameters
l Enhance dual band data
l 2G BA2 Table
l UTRAN FDD CELL BA2
l UTRAN TDD CELL BA2
Parent topic: Cell Parameters
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Basic Handover Parameters
l HO Control Switch
l TA HO Watch Time(Num of MR)(0.5s)
l TA HO Valid Time(0.5s)
l BQ HO Watch Time(0.5s)
l BQ HO Valid Time(0.5s)
l HCS HO Watch Time(0.5s)
l HCS HO Valid Time(0.5s)
l Interfere HO Static Time(0.5s)
l Interfere HO Valid Time(0.5s)
l Better Cell Handover Enable
l Better Cell HO Watch Time(s)
l Better Cell HO Valid Time(s)
l IntraCell AMR TCHF-TCHH Ho Allowed
l IntraCell AMR TCHF-TCHH Traffic Threshold
l IntraCell TCHF-TCHH Ho Duration(s)
l IntraCell TCHF-TCHH Ho Period(s)
l IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step
l IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step
l IntraCell AMR TCHF-TCHH Ho Pathloss Threshold
l IntraCell TCHF-TCHH Pathloss Offset Overlay
l IntraCell AMR TCHF-TCHH Ho ATCB Threshold
l IntraCell TCHF-TCHH ATCB Offset Overlay
l IntraCell AMR TCHF-TCHH Ho Qual. Threshold
l IntraCell TCHF-TCHH Ho Stat Time(s)
l IntraCell TCHF-TCHH Ho Last Time(s)
l IntraCell AMR TCHH-TCHF Traffic Threshold
l IntraCell AMR TCHH-TCHF Qual Ho Allowed
l IntraCell TCHH-TCHF Ho Duration(s)
l IntraCell AMR TCHH-TCHF Ho ATCB Threshold
Page 1 of 215Handover Data
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l IntraCell TCHH-TCHF ATCB Offset Overlay
l IntraCell AMR TCHH-TCHF Ho Pathloss Threshold
l IntraCell TCHH-TCHF Pathloss Offset Overlay
l IntraCell AMR TCHH-TCHF Ho Qual. Threshold
l IntraCell TCHH-TCHF Ho Stat Time(s)
l IntraCell TCHH-TCHF Ho Last Time(s)
l IntraCell Non-AMR TCHF-TCHH Ho Allowed
l IntraCell Non-AMR TCHF-TCHH Traffic Threshold
l IntraCell Non-AMR TCHF-TCHH Ho Pathloss Adjust Step
l IntraCell Non-AMR TCHF-TCHH Ho ATCB Adjust Step
l IntraCell Non-AMR TCHF-TCHH Ho Pathloss Threshold
l IntraCell Non-AMR TCHF-TCHH Ho ATCB Threshold
l IntraCell Non-AMR TCHF-TCHH Ho Qual. Threshold
l IntraCell Non-AMR TCHH-TCHF Traffic Threshold
l IntraCell Non-AMR TCHH-TCHF Qual. Ho Allowed
l IntraCell Non-AMR TCHH-TCHF Ho ATCB Threshold
l IntraCell Non-AMR TCHH-TCHF Ho Pathloss Threshold
l IntraCell Non-AMR TCHH-TCHF Ho Qual. Threshold
l Inter-RAT Out BSC Handover Enable
l Inter-RAT In BSC Handover Enable
l Inter-RAT Cell Reselection Enable
l Pathloss Ho. Enable
l Co-BSC/MSC Adj
l SDCCH HO Allowed
l Intracell HO Allowed
l Intracell F-H HO Allowed
l Load HO Allowed
l MS Fast Moving HO Allowed
l Rx_Level_Drop HO Allowed
l PBGT HO Allowed
l Level HO Allowed
l Edge Handover Allowed
l BQ HO Allowed
l TA HO Allowed
l Concentric Circles HO Allowed
l Interference HO Allowed
l Edge HO UL RX_LEV Threshold
l Edge HO DL RX_LEV Threshold
l Edge HO Watch Time(s)
l Edge HO Valid Time(s)
l Edge HO Watch Time(0.5s)
l Edge HO Valid Time(0.5s)
l Edge HO AdjCell Watch Time(s)
l Edge HO AdjCell Valid Time(s)
l Edge HO AdjCell Watch Time(0.5s)
l Edge HO AdjCell Valid Time(0.5s)
l Layer HO Watch Time(s)
l Layer HO Valid Time(s)
l PBGT Watch Time(s)
l PBGT Valid Time(s)
l Intracell F-H HO Stat Time(s)
l Intracell F-H HO Last Time(s)
l F2H HO Threshold
l H2F HO Threshold

l Inter-layer HO Threshold
l Inter-layer HO Hysteresis
l Min UP Power on HO Candidate Cell
l Min DL Power on HO Candidate Cell
l Quick Handover Enable
l TIGHT BCCH HO Watch Time(s)
l TIGHT BCCH HO Valid Time(s)
l ATCBHoSwitch
l Enhanced Concentric Allowed
Parent topic: Handover Data
HO Control Switch
Parent topic: Basic Handover Parameters
TA HO Watch Time(Num of MR)(0.5s)
Parameter Name HO Control Switch
Description This parameter specifies whether HO Algorithm I or HO Algorithm II is
valid.
GUI Value Range [HO Algorithm I, HO Algorithm II]
Default Value HO Algorithm I
Unit None
Step -
Modification Rules None
Configuration
Policy
None
Recommended
Value
HO Algorithm I
Parameter
Relationship
None
BSC Feature None
Parameter Class Parameters About Radio Resources
Caution None
Parameter Name TA HO Watch Time(Num of MR)(0.5s)
Description The P/N criterion must be met for triggering a TA handover. That is, the

TA HO Valid Time(0.5s)
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.
GUI Value Range [1,16]
Default Value 1
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
1
Parameter
Relationship
None
BSC Feature None
Caution This parameter is valid only when the HO Control Switch is set to HO
Algorithm II. This parameter is invalid when the HO Control Switch is
set to HO Algorithm I.
Parameter Name TA HO Valid Time(0.5s)
Description 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 1
Unit Seconds
Step 0.5s
Configuration None

BQ HO Watch Time(0.5s)
Policy
Recommended
Value
1
Parameter
Relationship
None
BSC Feature None
Parameter Name BQ HO Watch Time(0.5s)
Description 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
Default Value 1
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
1
Parameter
Relationship
None
BSC Feature None

BQ HO Valid Time(0.5s)
HCS HO Watch Time(0.5s)
Parameter Name BQ HO Valid Time(0.5s)
Description 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
Default Value 1
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
1
Parameter
Relationship
None
BSC Feature None
Parameter Name HCS HO Watch Time(0.5s)
Description 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.

HCS HO Valid Time(0.5s)
Default Value 3
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None
Parameter Name HCS HO Valid Time(0.5s)
Description 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.
Default Value 2
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
2
Parameter None

Interfere HO Static Time(0.5s)
Relationship
BSC Feature None
Parameter Name Interfere HO Static Time(0.5s)
Description 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.
Default Value 3
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None

Interfere HO Valid Time(0.5s)
Better Cell Handover Enable
Parameter Name Interfere HO Valid Time(0.5s)
Description 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.
Default Value 2
Unit Seconds
Step 0.5s
Configuration
Policy
None
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None
Caution None
Parameter Name Better Cell Handover Enable
Description This parameter specifies whether to enable the better cell handover
algorithm.
Yes: permitted; No: not permitted
GUI Value Range [No, Yes]
Default Value Yes
Unit None
Step -

Better Cell HO Watch Time(s)
Configuration
Policy
None
Recommended
Value
Yes
Parameter
Relationship
None
BSC Feature None
Parameter Name Better Cell HO Watch Time(s)
Description 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 times in N times.
Default Value 3
Unit Seconds
Step -
Configuration
Policy
None
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None

Better Cell HO Valid Time(s)
IntraCell AMR TCHF-TCHH Ho Allowed
Parameter Name Better Cell HO Valid Time(s)
Description 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 times in N times.
Default Value 2
Unit Seconds
Step -
Configuration
Policy
None
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell AMR TCHF-TCHH Ho Allowed
Description This parameter specifies whether the BSC initiates an AMR TCHF-
TCHH load handover.
Default Value No
Unit None

IntraCell AMR TCHF-TCHH Traffic
Threshold
Step -
Configuration
Policy
If this parameter is set to Yes, the AMR TCHF-TCHH handover
algorithm is enabled and an AMR call can be handed over from TCHF to
TCHH to relieve network congestion.
If this parameter is set to No, the AMR TCHF-TCHH handover
algorithm is disabled and an AMR call cannot be handed over from
TCHF to TCHH. Thus, network congestion cannot be relieved through
TCHF-TCHH handover.
Recommended
Value
None
Parameter
Relationship
None
BSC Feature None
Caution This parameter is available only when HO Control Switch is set to HO
Parameter Name IntraCell AMR TCHF-TCHH Traffic Threshold
Description 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 75
Unit None
Step -
Configuration
Policy
If this parameter is set to a too great value, many calls cannot be handed
over from TCHF to TCHH when the load of the network increases in a
short time. Thus, network congestion cannot be relieved in time.
If this parameter is set to a too small value, some calls are handed over

IntraCell TCHF-TCHH Ho Duration(s)
from TCHF to TCHH even when there is no risk of congestion, which
leads to a drop in the MOS.
Recommended
Value
75
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHF-TCHH Ho Duration(s)
Description 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 5
Unit Seconds
Step -
Configuration
Policy
If this parameter is set to a too small value, the duration of an AMR
TCHF-TCHH handover is short after the handover is triggered. Thus,
few MSs can be handed over from TCHF to TCHH, and network
congestion cannot be relieved in time.
If this parameter is set to a too great value, the duration of an AMR
TCHF-TCHH handover is long after the handover is triggered. Thus,
even the MSs on the edge of the cell are handed over from TCHF to
TCHH, and the handover quality deteriorates.
Recommended
Value
5
Parameter
Relationship
None
BSC Feature None

IntraCell TCHF-TCHH Ho Period(s)
IntraCell AMR TCHF-TCHH Ho Pathloss
Adjust Step
Parameter Name IntraCell TCHF-TCHH Ho Period(s)
Description 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 1
Unit Seconds
Step -
Configuration
Policy
If this parameter is set to a too small value, the handover zone is
enlarged in a short time, and thus many MSs are handed over from
TCHF to TCHH.
If this parameter is set to a too great value, the handover zone is enlarged
slowly and it takes a long time to initiate a TCHF-TCHH handover.
Thus, network congestion cannot be relieved in time.
Recommended
Value
1
Parameter
Relationship
None
BSC Feature None

IntraCell AMR TCHF-TCHH Ho ATCB
Adjust Step
Parameter Name IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step
Description 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 5
Unit None
Step -
Configuration
Policy
None
Recommended
Value
5
Parameter
Relationship
Path loss offset = (Time elapsing after the TCHF-TCHH
handover/IntraCell TCHF-TCHH Ho Period(s) + 1) x IntraCell AMR
TCHF-TCHH Ho Pathloss Adjust Step
BSC Feature None
Parameter Name IntraCell AMR TCHF-TCHH Ho ATCB Adjust Step
Description 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 3
Unit None
Step -

IntraCell AMR TCHF-TCHH Ho Pathloss
Threshold
Configuration
Policy
None
Recommended
Value
3
Parameter
Relationship
ATCB offset = (Time elapsing after the TCHF-TCHH
handover/IntraCell TCHF-TCHH Ho Period(s) + 1) x IntraCell AMR
TCHF-TCHH Ho ATCB Adjust Step
BSC Feature None
Parameter Name IntraCell AMR TCHF-TCHH Ho Pathloss Threshold
Description 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 100
Unit None
Step -
Configuration
Policy
None
Recommended
Value
100
Parameter
Relationship
If the path loss of an MS < IntraCell AMR TCHF-TCHH Ho Pathloss
Threshold + Path loss offset), then the MS meets the requirement of
TCHF-TCHH handover for path loss. Here, Path loss offset = (Time
elapsing after the TCHF-TCHH handover/IntraCell TCHF-TCHH Ho
Period(s) + 1)/IntraCell AMR TCHF-TCHH Ho Pathloss Adjust Step.
BSC Feature None

IntraCell TCHF-TCHH Pathloss Offset
Overlay
IntraCell AMR TCHF-TCHH Ho ATCB
Threshold
Parameter Name IntraCell TCHF-TCHH Pathloss Offset Overlay
Description This parameter specifies the difference of pass loss between the overlaid
subcell and the underlaid subcell.
Default Value 10
Unit None
Step -
Configuration
Policy
None
Recommended
Value
10
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell AMR TCHF-TCHH Ho ATCB Threshold
Description 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.

IntraCell TCHF-TCHH ATCB Offset
Overlay
Default Value 20
Unit None
Step -
Configuration
Policy
None
Recommended
Value
20
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHF-TCHH ATCB Offset Overlay
Description This parameter specifies the ATCB difference between the overlaid
Default Value 20
Unit None
Step -
Configuration
Policy
None
Recommended
Value
20
Parameter
Relationship
None
BSC Feature None

IntraCell AMR TCHF-TCHH Ho Qual.
Threshold
IntraCell TCHF-TCHH Ho Stat Time(s)
Parameter Name IntraCell AMR TCHF-TCHH Ho Qual. Threshold
Description This parameter specifies the quality threshold for AMR TCHF-TCHH
handover.
Default Value 0
Unit None
Step -
Configuration
Policy
None
Recommended
Value
0
Parameter
Relationship
If the receive quality level of an MS < IntraCell AMR TCHF-TCHH Ho
Qual. Threshold, the MS meets the requirement of TCHF-TCHH
handover for the receive quality. You must determine both the uplink
receive quality and downlink receive quality when you use this
parameter.
BSC Feature None
Parameter Name IntraCell TCHF-TCHH Ho Stat Time(s)

IntraCell TCHF-TCHH Ho Last Time(s)
Description 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 N in the P/N criterion.
Default Value 3
Unit Seconds
Step -
Configuration
Policy
If this parameter is set to a too great value, it takes a long time to make a
handover decision and respond the handover request. If this parameter is
set to a too small value, there is no enough time to make a handover
decision, which may lead to a misjudgment.
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHF-TCHH Ho Last Time(s)
Description 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 in P/N criterion.
Default Value 2
Unit Seconds
Step -

IntraCell AMR TCHH-TCHF Traffic
Threshold
Configuration
Policy
If this parameter is set to a too great value, it takes a long time to make a
handover decision and respond the handover request. If this parameter is
set to a too small value, there is no enough time to make a handover
decision, which may lead to a misjudgment.
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell AMR TCHH-TCHF Traffic Threshold
Description 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 15
Unit None
Step -
Configuration
Policy
If this parameter is set to a too great value, an AMR TCHH-TCHF
handover is triggered only when the network is overloaded, which may
again lead to a risk of network congestion.
Recommended
Value
15
Parameter
Relationship
None
BSC Feature None

IntraCell AMR TCHH-TCHF Qual Ho
Allowed
IntraCell TCHH-TCHF Ho Duration(s)
Parameter Name IntraCell AMR TCHH-TCHF Qual Ho Allowed
Description This parameter specifies whether to allow an AMR TCHH-TCHF
handover due to quality.
Default Value No
Unit None
Step -
Configuration
Policy
If this parameter is set to Yes, a call can be handed over from TCHH to
TCHF when the quality of the call is bad.
If this parameter is set to No, a call of bad quality cannot be handed over
from TCHH to TCHF. Thus, the quality of the call cannot be improved.
Recommended
Value
No
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHH-TCHF Ho Duration(s)

IntraCell AMR TCHH-TCHF Ho ATCB
Threshold
Description 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 5
Unit Seconds
Step -
Configuration
Policy
None
Recommended
Value
5
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell AMR TCHH-TCHF Ho ATCB Threshold
Description 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 4
Unit None
Step -
Configuration
Policy
If this parameter is set to a too great value, only an MS close to the cell
center can be assigned TCHHs. Thus, timeslots are wasted, and network

IntraCell TCHH-TCHF ATCB Offset
Overlay
congestion cannot be relieved in time.
If this parameter is set to a too small value, an MS of bad quality on the
cell edge cannot be handed over from TCHH to TCHF. Thus, the quality
of the call cannot be improved.
Recommended
Value
4
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHH-TCHF ATCB Offset Overlay
Description This parameter specifies the ATCB difference between the overlaid
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 20
Unit None
Step -
Configuration
Policy
If this parameter is set to a too great value, only an MS close to the
overlaid subcell can be assigned TCHHs. Thus, timeslots are wasted.
edge of the overlaid subcell cannot be handed over from TCHH to
TCHF. Thus, the quality of the call cannot be improved.
Recommended
Value
20
Parameter None

IntraCell AMR TCHH-TCHF Ho Pathloss
Threshold
Relationship
BSC Feature None
Parameter Name IntraCell AMR TCHH-TCHF Ho Pathloss Threshold
Description 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 108
Unit None
Step -
Configuration
Policy
None
Recommended
Value
108
Parameter
Relationship
None
BSC Feature None

IntraCell TCHH-TCHF Pathloss Offset
Overlay
IntraCell AMR TCHH-TCHF Ho Qual.
Threshold
Parameter Name IntraCell TCHH-TCHF Pathloss Offset Overlay
Description This parameter specifies the difference of pass loss between the overlaid
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 10
Unit None
Step -
Configuration
Policy
If this parameter is set to a too great value, only an MS close to the
center of the overlaid subcell can be assigned TCHHs. Thus, timeslots
are wasted, and network congestion cannot be relieved in time.
edge of the overlaid subcell cannot be handed over from TCHH to
TCHF. Thus, the quality of the call cannot be improved.
Recommended
Value
10
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell AMR TCHH-TCHF Ho Qual. Threshold
Description This parameter specifies the quality threshold for AMR TCHH-TCHF

IntraCell TCHH-TCHF Ho Stat Time(s)
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 7: BER larger than 12.8%
Default Value 3
Unit None
Step -
Configuration
Policy
None
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None
Caution This parameter can be configured only when HO Control Switch is set to
HO Algorithm II; this parameter is invalid when HO Control Switch is

IntraCell TCHH-TCHF Ho Last Time(s)
Parameter Name IntraCell TCHH-TCHF Ho Stat Time(s)
Description 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 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 3
Unit Seconds
Step -
Configuration
Policy
If this parameter is set too large and thus the MS status is viewed for a
long time, the AMR TCHH-TCHF handover cannot be performed
immediately and the speech quality unnecessarily deteriorates.
If this parameter is set too small and thus the MS status is viewed for a
short time, the AMR TCHH-TCHF handover might incur a wrong
decision.
Recommended
Value
3
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell TCHH-TCHF Ho Last Time(s)
Description 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.

IntraCell Non-AMR TCHF-TCHH Ho
Allowed
This parameter, used with IntraCell TCHH-TCHF Ho Stat Time(s),
equals the P 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 2
Unit Seconds
Step -
Configuration
Policy
If this parameter is set too large, the MS takes a longer time to meet the
conditions for triggering the AMR TCHH-TCHF handover. As a result,
the AMR TCHH-TCHF handover cannot be performed immediately and
the speech quality unnecessarily deteriorates.
If this parameter is set too small, the MS takes a shorter time to meet the
conditions for triggering the AMR TCHH-TCHF handover. As a result,
the AMR TCHH-TCHF handover might incur a wrong decision.
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Allowed
Description This parameter specifies whether the non-AMR TCHF-TCHH handover
is allowed.
Default Value No
Unit None
Step -

IntraCell Non-AMR TCHF-TCHH Traffic
Threshold
Configuration
Policy
If this parameter is set to Yes, the AMR TCHF-TCHH handover
algorithm is valid, the FR and EFR services can be handed over to HR
services, and the AMR TCHF-TCHH handover can alleviate network
congestion.
If this parameter is set to No, the AMR TCHF-TCHH handover
algorithm is invalid, the FR and EFR services cannot be handed over to
HR services, and the AMR TCHF-TCHH handover fails to alleviate
network congestion.
Recommended
Value
No
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHF-TCHH Traffic Threshold
Description 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 85
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the TCHF-TCHH handover is enabled
only when the network is heavily loaded. If traffic is concentrated, the
TCHF-TCHH handover starts late and therefore many MSs cannot be
handed over to half-rate services within a short time. As a result, the
network congestion cannot be alleviated.

Pathloss Adjust Step
If this parameter is set too small and the TCHF-TCHH handover is
enabled when the network is lightly loaded, the call will be handed over
to half-rate services, which causes unnecessary decrease in the MOS of
the MS.
Recommended
Value
85
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Pathloss Adjust Step
Description 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 1
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the handover area quickly expands
within a short time, which causes many MSs to enable the TCHF-TCHH
handover.
If this parameter is set too small, the handover area slowly expands and
therefore the MSs cannot immediately enable the TCHF-TCHH
handover. As a result, the network congestion cannot be alleviated.
Recommended
Value
1
Parameter None

IntraCell Non-AMR TCHF-TCHH Ho ATCB
Adjust Step
Relationship
BSC Feature None
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho ATCB Adjust Step
Description 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 2
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the handover area quickly expands
within a short time, which causes many MSs to enable the TCHF-TCHH
handover.
If this parameter is set too small, the handover area slowly expands and
therefore the MSs cannot immediately enable the TCHF-TCHH
handover. As a result, the network congestion cannot be alleviated.
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None

Pathloss Threshold
IntraCell Non-AMR TCHF-TCHH Ho ATCB
Threshold
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Pathloss Threshold
Description 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 95
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the MSs at the edge of a cell are handed
over to half-rate services and thus the speech quality deteriorates.
If this parameter is set too small, only the MSs at the center of a cell are
handed over to half-rate services and thus the network congestion cannot
be alleviated.
Recommended
Value
95
Parameter
Relationship
None
BSC Feature None

IntraCell Non-AMR TCHF-TCHH Ho Qual.
Threshold
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho ATCB Threshold
Description If the non-AMR full-rate speech ATCB is larger than or equal to this
handover.
If MS ATCB > ATCB threshold - ATCB offset, you can infer that the
MS meets the ATCB threshold.
Default Value 30
Unit None
Step -
Configuration
Policy
If this parameter is set too large, only the MSs at the center of a cell are
handed over to half-rate services and thus the network congestion cannot
be alleviated.
If this parameter is set too small, the MSs at the edge of a cell are handed
over to half-rate services and thus the speech quality deteriorates.
Recommended
Value
30
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHF-TCHH Ho Qual. Threshold
Description 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 0
Unit None

IntraCell Non-AMR TCHH-TCHF Traffic
Threshold
Step -
Configuration
Policy
If this parameter is set too large, the MSs that have poor speech quality
at full rate meet the handover conditions but have the risk of being
handed over to half-rate services with equally poor speech quality.
If this parameter is set too small, it is difficult for the MSs to meet the
handover conditions and thus the network congestion cannot be
alleviated.
Recommended
Value
0
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHH-TCHF Traffic Threshold
Description 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 25
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the TCHH-TCHF handover is triggered
when the network is heavily loaded; therefore, the network load changes
greatly and the network might be congested again.
If this parameter is set too small, the TCHH-TCHF handover is triggered
when the network is lightly loaded, which causes unnecessary decrease

IntraCell Non-AMR TCHH-TCHF Qual. Ho
Allowed
in the MOS of the MS.
Recommended
Value
25
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHH-TCHF Qual. Ho Allowed
Description This parameter specifies whether to allow the non-AMR TCHH-TCHF
handover triggered by the quality problem.
Default Value No
Unit None
Step -
Configuration
Policy
If this parameter is set to Yes, the TCHH-TCHF quality handover is
enabled and the poor-quality TCHH MSs can be handed over to TCHFs
to ensure speech quality.
If this parameter is set to No, the TCHH-TCHF quality handover is
disabled and the poor-quality TCHH MSs cannot be handed over to
TCHFs to ensure speech quality.
Recommended
Value
No
Parameter
Relationship
None
BSC Feature None

IntraCell Non-AMR TCHH-TCHF Ho ATCB
Threshold
IntraCell Non-AMR TCHH-TCHF Ho
Pathloss Threshold
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho ATCB Threshold
Description If the non-AMR full-rate speech ATCB is smaller than or equal to this
handover.
Default Value 14
Unit None
Step -
Configuration
Policy
None
Recommended
Value
14
Parameter
Relationship
When the ATCB of the MS is smaller than the ATCB threshold, the MS
meets the conditions for TCHH-TCHF handover. This parameter,
together with the path loss threshold and receive quality threshold,
determines the TCHH-TCHF handover.
BSC Feature None
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho Pathloss Threshold
Description If the non-AMR full-rate speech path loss is larger than or equal to this

IntraCell Non-AMR TCHH-TCHF Ho Qual.
Threshold
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 103
Unit None
Step -
Configuration
Policy
If this parameter is set too large, the MSs at the edge of a cell cannot
meet the conditions for TCHH-TCHF handover and still stay in TCHHs,
which causes unnecessary deterioration of speech quality.
If this parameter is set too small, only the MSs at the center of a cell can
be handed over to TCHHs and thus the network congestion cannot be
alleviated.
Recommended
Value
103
Parameter
Relationship
None
BSC Feature None
Parameter Name IntraCell Non-AMR TCHH-TCHF Ho Qual. Threshold
Description 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.

Inter-RAT Out BSC Handover Enable
Default Value 2
Unit None
Step -
Configuration
Policy
None
Recommended
Value
2
Parameter
Relationship
None
BSC Feature None
Parameter Name Inter-RAT Out BSC Handover Enable
Description This parameter determines whether the handover from 2G cells to 3G
cells is allowed.
GUI Value Range [No,Yes]
Default Value No
Unit None
Step -
Configuration
Policy
None
Recommended
Value
None
Parameter
Relationship
None
BSC Feature Handover
Caution None

Inter-RAT In BSC Handover Enable
Inter-RAT Cell Reselection Enable
Parameter Name Inter-RAT In BSC Handover Enable
Description This parameter determines whether the handover from 3G cells to 2G
cells is allowed.
Default Value No
Unit None
Step -
Configuration
Policy
None
Recommended
Value
None
Parameter
Relationship
None
Caution None
Parameter Name Inter-RAT Cell Reselection Enable
Description This parameter determines whether the reselection from 2G cells to 3G
cells is allowed.
Default Value No
Unit None
Step -
Configuration
Policy
None

Pathloss Ho. Enable
Co-BSC/MSC Adj
Recommended
Value
None
Parameter
Relationship
None
Caution None
Parameter Name Pathloss Ho. Enable
Description This parameter specifies whether cells are sorted by path loss in the
better cell handover algorithm.
Default Value No
Unit None
Step -
Configuration
Policy
None
Recommended
Value
No
Parameter
Relationship
None
BSC Feature handover algorithm
Parameter Name Co-BSC/MSC Adj

SDCCH HO Allowed
Description 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 Yes
Unit None
Step -
Configuration
Policy
If this parameter is set to Yes, the target cell to which the MS is handed
over may not be the cell with the best signal quality.
Recommended
Value
Yes
Parameter
Relationship
None
Caution None
Parameter Name SDCCH HO Allowed
Description This parameter specifies whether a handover between signaling channels
is enabled.
Default Value No
Unit None
Step -
Configuration
Policy
When the authentication and ciphering procedures are enabled on the
existing network, this parameter can be set to Yes.
Recommended
Value
No
Parameter
Relationship
None

Intracell HO Allowed
Intracell F-H HO Allowed
Caution None
Parameter Name Intracell HO Allowed
Description This parameter specifies whether the intra-cell handover is enabled.
Note: A forced intra-cell handover is not subject to this parameter.
Default Value No
Unit None
Step -
Configuration
Policy
Yes for hot-spot areas; densely populated urban areas, common urban
areas, suburbs, and rural areas; No for high-speed circumstances
Recommended
Value
No
Parameter
Relationship
None
Caution When an interference handover or bad quality handover is performed, an
intra-cell handover fails if this parameter is set to No.
This parameter does not affect concentric cell handovers and forced
intra-cell handovers.
Parameter Name Intracell F-H HO Allowed
Description This parameter specifies whether the AMR handover is enabled. This
parameter does not affect the dynamic non-AMR full-rate to half-rate
handover.

Load HO Allowed
GUI Value Range [Yes,No]
Default Value Yes
Unit None
Step -
Configuration
Policy
The AMR handover can be triggered only when the Intracell F-H HO
Allowed parameter is set to Yes.
Recommended
Value
Yes
Parameter
Relationship
None
BSC Feature Handover, AMR
Algorithm I. This parameter is invalid when the HO Control Switch is
set to HO Algorithm II.
Parameter Name Load HO Allowed
Description 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 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 No
Unit None
Step -
Configuration
Policy
If this parameter is set to YES, extra interference may be introduced
when aggressive frequency reuse pattern is used.

MS Fast Moving HO Allowed
Recommended
Value
No
Parameter
Relationship
None
Caution None
Parameter Name MS Fast Moving HO Allowed
Description 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 No
Unit None
Step -
Configuration
Policy
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.
Recommended
Value
No
Parameter
Relationship
None
Caution None

Rx_Level_Drop HO Allowed
PBGT HO Allowed
Parameter Name Rx_Level_Drop HO Allowed
Description 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 No
Unit None
Step -
Configuration
Policy
In dual-band networking mode for densely populated urban areas, the
level drops rapidly due to multiple barriers. The propagation loss of the
1800 MHz frequency band is greater than the propagation loss of the 900
MHz frequency band. Considering the preceding factors, you can enable
the Rx_Level_Drop HO Allowed for the DCS1800 cell.
Under normal conditions, this parameter is set to No. To support the
rapid level drop handover, the BSC must have the original MR.
Recommended
Value
No
Parameter
Relationship
None
Parameter Name PBGT HO Allowed
Description 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

Level HO Allowed
the cells of the same layer and hierarchy. The PBGT handover cannot be
performed on SDCCHs.
Default Value Yes
Unit None
Step -
Configuration
Policy
Huawei recommends that the PBGT handover algorithm be enabled.
Proper use of PBGT handovers helps to reduce cross coverage and to
avoid co-channel interference and adjacent channel interference.
Recommended
Value
Yes
Parameter
Relationship
None
Parameter Name Level HO Allowed
Description 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 Yes
Unit None
Step -
Configuration
Policy
The lower the layer is, the higher the priority is. The lower the hierarchy
is, the higher the priority is. The layered hierarchical handover cannot be
triggered if the serving cell has the highest priority in the queue or if the
level of the target cell is lower than the Inter-layer HO Threshold.

Edge Handover Allowed
If this parameter is set to Yes, a call is handed over to the target cell that
has a higher priority than the serving cell.
Recommended
Value
Yes
Parameter
Relationship
None
Parameter Name Edge Handover Allowed
Description 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 If HO Control Switch is set to HO Algorithm I, the default value of this
parameter is Yes. If HO Control Switch is set to HO Algorithm II, the
default value of this parameter is No.
Unit None
Step -
Configuration
Policy
Huawei recommends that this parameter be set to Yes. In other words,
the edge handover algorithm is enabled.
Recommended
Value
Yes
Parameter
Relationship
None
Caution During the edge handover, the MS can only be handed over to the cell

BQ HO Allowed
TA HO Allowed
that ranks in front of the serving cell.
Parameter Name BQ HO Allowed
Description 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 Yes
Unit None
Step -
Configuration
Policy
None
Recommended
Value
Yes
Parameter
Relationship
None
Caution During the BQ handover, an MS is preferentially handed over to a target
cell. If no target cell is available, the MS can also be handed over to a
channel within the serving cell on condition that the intra-cell handover
is enabled.
Parameter Name TA HO Allowed
Description 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

Concentric Circles HO Allowed
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 Yes
Unit None
Step -
Configuration
Policy
None
Recommended
Value
Yes
Parameter
Relationship
None
Caution None
Parameter Name Concentric Circles HO Allowed
Description 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 Yes
Unit None
Step -
Configuration
Policy
None
Recommended
Value
Yes

Interference HO Allowed
Parameter
Relationship
None
Caution None
Parameter Name Interference HO Allowed
Description 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 Yes
Unit None
Step -
Configuration
Policy
None
Recommended
Value
Yes
Parameter
Relationship
None
Caution The interference handover decision consists of the uplink interference
handover decision and the downlink interference handover decision.
During the interference handover, an MS is preferentially handed over to
a target cell. If no target cell is available, the MS can also be handed over
to a channel within the serving cell on condition that the intra-cell
handover is enabled.

Edge HO UL RX_LEV Threshold
Parameter Name Edge HO UL RX_LEV Threshold
Description 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 10
Unit Levels
Step -
Configuration
Policy
This parameter should be adjusted as required. If the Edge HO UL
RX_LEV Threshold is set to a too small value, call drop may easily
occur. If the PBGT handover is enabled, the relevant edge handover
threshold can be decreased.
Recommended
Value
The typical configurations of this parameter are as follows:
25: urban areas with PBGT handover disabled
20: suburbs with a single BTS
20: urban areas with PBGT handover enabled
Parameter
Relationship
None
Caution 1. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold
< UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold in
Huawei II power control algorithm.
2. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold
< UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold
expected in Huawei I power control algorithm.

Edge HO DL RX_LEV Threshold
Parameter Name Edge HO DL RX_LEV Threshold
Description 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 20
Unit Levels
Step -
Configuration
Policy
This parameter should be adjusted as required. If the Edge HO DL
RX_LEV Threshold is set to a too small value, call drop may easily
occur. If the PBGT handover is enabled, the relevant edge handover
threshold can be decreased.
Recommended
Value
20
Parameter
Relationship
None
Caution 1. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold
< UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold in
Huawei II power control algorithm.
2. Edge HO UL RX_LEV Threshold/Edge HO DL RX_LEV Threshold
< UL RX_LEV Lower Threshold/DL RX_LEV Lower Threshold
expected in Huawei I power control algorithm.

Edge HO Watch Time(s)
Edge HO Valid Time(s)
Parameter Name Edge HO Watch Time(s)
Description According to the P/N criterion, if the UL or DL receive level is lower
than its corresponding edge handover threshold for P consecutive times
within N times, an edge handover is triggered.
This parameter corresponds to N of the P/N criterion,and applies only to
HO Algorithm I.
Default Value 3
Unit Seconds
Step -
Configuration
Policy
The greater the value of this parameter is set, the more difficult the edge
handover can be triggered.
Recommended
Value
3
Parameter
Relationship
Edge HO Valid Time(s)
Parameter Name Edge HO Valid Time(s)
This parameter corresponds to P of the P/N criterion, and applies only to
HO Algorithm I.
Default Value 2

Edge HO Watch Time(0.5s)
Unit Seconds
Step -
Configuration
Policy
Recommended
Value
2
Parameter
Relationship
Edge HO Watch Time(s)
Parameter Name Edge HO Watch Time(0.5s)
HO Algorithm II.
Default Value 1
Unit 0.5 Seconds
Step -
Configuration
Policy
Recommended
Value
1
Parameter
Relationship
Edge HO Valid Time(0.5s)

Edge HO Valid Time(0.5s)
Edge HO AdjCell Watch Time(s)
Parameter Name Edge HO Valid Time(0.5s)
HO Algorithm II.
Default Value 1
Unit 0.5 Seconds
Step -
Configuration
Policy
Recommended
Value
1
Parameter
Relationship
Edge HO Watch Time(0.5s)
Parameter Name Edge HO AdjCell Watch Time(s)
Description According to the P/N criterion, if the adjacent cell keeps meeting the
triggering conditions of edge handover for P consecutive times within N

Edge HO AdjCell Valid Time(s)
times, an edge handover to the adjacent cell is triggered.
This parameter corresponds to N of the P/N criterion.
Default Value 3
Unit Seconds
Step -
Configuration
Policy
Recommended
Value
3
Parameter
Relationship
Edge HO AdjCell Valid Time(s)
Parameter Name Edge HO AdjCell Valid Time(s)
This parameter corresponds to P of the P/N criterion.
Default Value 2
Unit Seconds
Step -
Configuration
Policy
Recommended
Value
2

Edge HO AdjCell Watch Time(0.5s)
Edge HO AdjCell Valid Time(0.5s)
Parameter
Relationship
Edge HO AdjCell Watch Time(s)
Parameter Name Edge HO AdjCell Watch Time(0.5s)
Default Value 1
Unit 0.5Seconds
Step -
Configuration
Policy
Recommended
Value
1
Parameter
Relationship
Edge HO AdjCell Valid Time(0.5s)

Layer HO Watch Time(s)
Parameter Name Edge HO AdjCell Valid Time(0.5s)
Default Value 1
Unit 0.5Seconds
Step -
Configuration
Policy
Recommended
Value
1
Parameter
Relationship
Edge HO AdjCell Watch Time(0.5s)
Parameter Name Layer HO Watch Time(s)
Description According to the P/N criterion, if the signals in the candidate cell are
better than those in the serving cell for P consecutive times within N
times, a layered hierarchical handover is triggered.
Default Value 3
Unit Seconds
Step -
Configuration The greater the value of this parameter is set, the more difficult the

Layer HO Valid Time(s)
Policy layered hierarchical handover can be triggered.
Recommended
Value
3
Parameter
Relationship
Layer HO Valid Time(s)
Parameter Name Layer HO Valid Time(s)
Description According to the P/N criterion, if the signals in the candidate cell are
better than those in the serving cell for P consecutive times within N
times, a layered hierarchical handover is triggered.
Default Value 2
Unit Seconds
Step -
Configuration
Policy
The greater the value of this parameter is set, the more difficult the
layered hierarchical handover can be triggered.
Recommended
Value
2
Parameter
Relationship
Layer HO Watch Time(s)

PBGT Watch Time(s)
PBGT Valid Time(s)
Parameter Name PBGT Watch Time(s)
triggering conditions of PBGT handover for P consecutive times within
N times, a PBGT handover is triggered and the MS is handed over to the
adjacent cell.
Default Value 3
Unit Seconds
Step -
Configuration
Policy
PBGT handover can be triggered.
Recommended
Value
3
Parameter
Relationship
PBGT Valid Time(s)
Parameter Name PBGT Valid Time(s)
triggering conditions of PBGT handover for P consecutive times within
N times, a PBGT handover is triggered and the MS is handed over to the
adjacent cell.

Intracell F-H HO Stat Time(s)
Default Value 2
Unit Seconds
Step -
Configuration
Policy
PBGT handover can be triggered.
Recommended
Value
2
Parameter
Relationship
PBGT Watch Time(s)
Parameter Name Intracell F-H HO Stat Time(s)
Description 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 P consecutive seconds with N
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 5
Unit Seconds
Step -
Configuration
Policy
The greater the value of this parameter is set, the more difficult the AMR

Intracell F-H HO Last Time(s)
Recommended
Value
5
Parameter
Relationship
None
Parameter Name Intracell F-H HO Last Time(s)
Description 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 P consecutive times with N measurement
times.
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 4
Unit Seconds
Step -
Configuration
Policy
The greater the value of this parameter is set, the more difficult the AMR
Recommended
Value
4
Parameter
Relationship
None

61840841 handover-parameter

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