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Huawei Industrial Base
Bantian, Longgang
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Copyright Huawei Technologies Co., Ltd. 2011. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior
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Huawei Technologies Co., Ltd.Address:
BSC6900 GU V900R013C00SPC550
Used Reserved Parameter Reference
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This document provides informati
Description
MO
Parameter IDMML Command
BIT
Meaning
Default Value
Impact on Radio
Network PerformanceIntroduced in Version
V913C00SPH532 vs
V911C00SPC7**
V913C00SPH532 vs
V912C01SPC2**
V913C00SPH532 vs
V912C00SPC5**
Change History
Issue
Draft
01
Organization
Purpose
Intended Audience
Network planners
Field engineers
System engineers
Shift operators
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n about the BSC6900 reserved parameters, including the meaning, value, and usage of the parameter
Remarks
Managed object of NE
Simple string for identifying a parameterCommands for setting the parameter
Name of the parameter
Definition, purpose, and protocols of the parameter
Initial parameter value assigned by the system. There is no default value for a
mandatory parameter. None indicates that there is no default value. For a bit field
parameter, the value ON of a sub-parameter means that the bit representing the sub-
parameter is set to 1, and the value OFF means that the bit is set to 0.
Generally, it is displayed on the configuration window of an ADD command but not
displayed on the configuration window of a MOD/RMV/DSP/LST command.
Impact of the parameter on radio network performance
Product version in which a bit is introduced or in used
Whether a bit in V913C00SPH532 inherits its original functions in V911C00SPC7**. 7**
indicates a patch version of V900R011C00SPC whose version number is started with 7.
Whether a bit in V913C00SPH532 inherits its original functions in V912C01SPC2**. 2**
indicates a patch version of V900R012C01SPC whose version number is started with 2.
Whether a bit in V913C00SPH532 inherits its original functions in V912C00SPC5**. 5**
indicates a patch version of V900R012C00SPC whose version number is started with 5.
Description Date
Completed the draft release. 2011/11/30
This is the first release. 2011/12/30
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MO Parameter ID MML Command BIT
RESERVED_SWITCH_0_BIT2
RESERVED_SWITCH
_0_BIT3
RESERVED_SWITCH
_0_BIT4
RESERVED_SWITCH
_0_BIT5
RESERVED_SWITCH
_0_BIT6
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RESERVED_SWITCH
_0_BIT7
RESERVED_SWITCH
_0_BIT8
RESERVED_SWITCH
_0_BIT9
RESERVED_SWITCH
_0_BIT10
RESERVED_SWITCH
_0_BIT11
RESERVED_SWITCH
_0_BIT13
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RESERVED_SWITCH
_0_BIT23
RESERVED_SWITCH
_0_BIT26
RESERVED_SWITCH
_0_BIT28
RESERVED_SWITCH
_0_BIT29
RESERVED_SWITCH
_0_BIT30
RESERVED_SWITCH_0_BIT31
UCORRMALG
OSWITCH
SET
UCORRMALGOSWITC
H
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RESERVED_SWITCH
_1_BIT1
RESERVED_SWITCH
_1_BIT2
RESERVED_SWITCH
_1_BIT4
RESERVED_SWITCH
_1_BIT5
RESERVED_SWITCH
_1_BIT6
RESERVED_SWITCH
_1_BIT7
RESERVED_SWITCH
_1_BIT8
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RESERVED_SWITCH
_1_BIT9
RESERVED_SWITCH
_1_BIT11
RESERVED_SWITCH
_1_BIT12
RESERVED_SWITCH
_1_BIT13
RESERVED_SWITCH
_1_BIT14
ReservedSwitch1
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ReservedU32Para0
ReservedU32Para1
ReservedU8Para0
ReservedU8Para1
RSVDBIT1
RSVDBIT2
RSVDBIT3
RSVDBIT4
RSVDBIT5
RSVDBIT6
RSVDBIT7
RsvdPara1
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RSVDBIT9
RSVDBIT10
RSVDBIT11
RSVDBIT12
RSVDBIT13
RSVDBIT14
RsvdPara2
RsvdPara3
RSVDBIT1
UCACALGOSW
ITCH
SET
UCACALGOSWITCH
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RSVDBIT2
RSVDBIT3
RSVDBIT4
RsvdPara1
UNODEBALGO
PARA
ADD
UNODEBALGOPARA
MOD
UNODEBALGOPARA
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RsvdPara2
RSVDBIT3
RSVDBIT4
RSVDBIT5
RSVDBIT6
RSVDBIT8
RSVDBIT9
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RSVDBIT10
RSVDBIT11
RSVDBIT12
RSVDBIT13
RSVDBIT14
RESERVED_SWITCH
_0_BIT1
RESERVED_SWITCH
_0_BIT2
RESERVED_SWITCH
_0_BIT3
UCELLALGOS
WITCHRsvdPara1
ADD
UCELLALGOSWITCH
MOD
UCELLALGOSWITCH
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RESERVED_SWITCH
_0_BIT4
RESERVED_SWITCH
_0_BIT5
RESERVED_SWITCH
_0_BIT6
RESERVED_SWITCH
_0_BIT7
RESERVED_SWITCH
_0_BIT8
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RESERVED_SWITCH
_0_BIT9
RESERVED_SWITCH
_0_BIT10
RESERVED_SWITCH
_0_BIT13
RESERVED_SWITCH
_0_BIT14
RESERVED_SWITCH
_0_BIT16
ReservedSwitch0
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RESERVED_SWITCH
_0_BIT17
RESERVED_SWITCH
_0_BIT19
RESERVED_SWITCH
_0_BIT20
RESERVED_SWITCH
_0_BIT21
RESERVED_SWITCH
_0_BIT22
RESERVED_SWITCH
_0_BIT23
SET UCORRMPARAUCORRMPAR
A
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RESERVED_SWITCH
_0_BIT24
BIT0~BIT7
BIT8~BIT15
BIT16~BIT23
ReservedU8Para0
ReservedU8Para1
ReservedU32Para0
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ReservedU8Para2
ReservedU8Para3
RESERVED_SWITCH
_0_BIT1
RESERVED_SWITCH
_0_BIT2
RESERVED_SWITCH
_0_BIT3
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RESERVED_SWITCH
_0_BIT4
RESERVED_SWITCH
_0_BIT6
RESERVED_SWITCH
_0_BIT7
RESERVED_SWITCH
_0_BIT8
RESERVED_SWITCH
_0_BIT9
RESERVED_SWITCH
_0_BIT10
ReservedU32Para1
UNBMPARA SET UNBMPARA
ReservedSwitch0
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ReservedU8Para0
ReservedU8Para1
URRRSVDPAR
ARsvdPara3 SET URRRSVDPARA
RSVDBIT1_BIT22
RSVDBIT1_BIT23
RSVDBIT1_BIT24
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RSVDBIT1_BIT25
RSVDBIT1_BIT26
RSVDBIT1_BIT28
RSVDBIT1_BIT29
RSVDBIT1_BIT30
RSVDBIT1_BIT31
RSVDBIT1_BIT2
SET URRCTRLSWITCH
RsvdPara1
URRCTRLSWI
TCH
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RSVDBIT1_BIT3
RSVDBIT1_BIT4
UIMEITAC PROCESSSWITCH ADD UIMEITAC RSVDBIT1_BIT2
UOPERATORS
HARINGMODEMocnControlSwitch
SET
UOPERATORSHARING
MODE
SPARE_1_SWITCH
RsvdPara2
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UOPERATORS
HARINGMODEMocnControlSwitch
SET
UOPERATORSHARING
MODE
SPARE_2_SWITCH
UOPERATORS
HARINGMODEMocnControlSwitch
SET
UOPERATORSHARING
MODE
SPARE_5_SWITCH
UOPERATORS
HARINGMODEMocnControlSwitch
SET
UOPERATORSHARING
MODE
SPARE_6_SWITCH
UCNNODE RsvdPara1ADD UCNNODE
MOD UCNNODERSVDBIT1_BIT1
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URRCTRLSWI
TCHRsvdPara4 SET URRCTRLSWITCH RSVDBIT1_BIT1
URRCTRLSWI
TCHRsvdPara4 SET URRCTRLSWITCH RSVDBIT1_BIT2
UCORRMPAR
AReservedSwitch0 SET UCORRMPARA
RESERVED_SWITCH
_0_BIT30
UCORRMPAR
AReservedSwitch0 SET UCORRMPARA
RESERVED_SWITCH
_0_BIT31
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UCORRMPAR
AReservedSwitch0 SET UCORRMPARA
RESERVED_SWITCH
_0_BIT32
UCORRMPAR
AReservedSwitch0 SET UCORRMPARA
RESERVED_SWITCH
_0_BIT11
UCORRMPAR
AReservedSwitch0 SET UCORRMPARA
RESERVED_SWITCH
_0_BIT29
UCORRMALG
OSWITCHReservedSwitch1
SET
UCORRMALGOSWITC
H
RESERVED_SWITCH
_1_BIT31
UDPUCFGDAT
ARsvdSwitch1 SET UDPUCFGDATA RsvdSwitch1_Bit18
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SwitchParameter5 NA
SwitchParameter6 NA
Bit0
Bit2
Bit3
Bit4
SwitchParameter8 Bit0~Bit7
SwitchParameter9 Bit16~Bit31
SwitchParameter7
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Bit0~Bit7
Bit8~Bit15
SwitchParameter2
0NA
RSVDPARA2 NA
RSVDPARA3 NA
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
bit8
bit9
bit10
bit11
bit12
bit13
bit14
bit15
bit16
SwitchParameter1
9
RSVDPARA7
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bit17
RSVDPARA8 0xFFFFFFFF
RSVDPARA9 0xFFFFFFFF
bit0
bit1
bit2
RSVDPARA12 0xFFFFFFFF
RSVDPARA10
SET
TRANSPATCHPARA
TRANSPATCH
PARA
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Meaning Default Value
-
only the uplink or downlink during the state
transition from CELL_FACH to CELL_DCH (F2D for
short)
0: The RLC entity must be re-established in both
uplink and downlink during F2D.1: The RLC entity can be re-established in only the
uplink or downlink during F2D.
Note: If the UE does not support RLC re-
establishment in only the uplink or downlink, F2D
fails and the UE stays in the CELL_FACH state. As a
0
Whether signaling radio bearers (SRBs) can be
switched over from DCHs to HSPA channels during
directed retry
0: When this switch is turned off, SRBs can be
switched over from DCHs to HSPA channels during
directed retry.
1: When this switch is turned on, SRBs cannot be
switched over from DCHs to HSPA channels duringdirected retry.
0
Whether the RNC takes the cell congestion status
into consideration when determining the initial
AMR mode during an AMR service setup
0: When this switch is turned off, the RNC takes the
cell congestion status into consideration during an
AMR service setup.
1: When this switch is turned on, the RNC does not
take the cell congestion status into consideration
during an AMR service setup. Both the uplink and
downlink data rates are GBRs.
0
Whether the BE service of a UE is switched from
HSUPA channels to R99 channels in weak coverage
areas
0
Whether to enable the directed retry algorithm
based on the downlink load balance
0: When this switch is turned off, the directed retry
algorithm based on the downlink load balance is
not enabled.
1: When this switch is turned on, the directed retry
algorithm based on downlink load balance is
enabled.
0
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Whether BE services can be switched over from E-
DCHs to DCHs due to insufficient coverage
0: This switch is turned off.
1: This switch is turned on. BE services can be
switched over from E-DCHs to DCHs due to
insufficient coverage. If the coverage recovers after
the UE moves to the cell center and the throughput
is high, the BE services can be transferred to E-
DCHs.
0
Whether the UE can transit from CELL_DCH to
CELL_FACH (D2F for short) over the Iur interface
0: This switch is turned off.
1: This switch is turned on. The D2F procedure is
triggered regardless of the existence of the CCCH
over the Iur interface.
0
Uplink 0 kbit/s transport format of an AMR service
0: The uplink 0 kbit/s transport format of AMR
service subflow A is 1*0.
1: The uplink 0 kbit/s transport format of AMR
service subflow A is 0*TbSize.
Note: Certain UEs obtain the transmission block size
(TbSize) based on the 0 kbit/s transport format
(TbNum * TbSize).
0
Whether to re-establish radio links (RLs) when
multiple cross-Iur RLs belonging to the same DRNC
are added simultaneously
0
Whether the uplink PS service must be carried on
DCHs when CS and PS services co-exist0
Whether the resources of a UE are released when
the RNC fails to receive any response from a UE
three times due to failures in switching over the UE
from the CELL_FACH to CELL_DCH state
1: When this switch is turned on, the resources of a
UE are released if the RNC fails to receive any
response from a UE three times due to failures in
switching over the UE from the CELL_FACH to
CELL_DCH state. Each time this problem occurs, the
RNC increments the counter
VS.MBMS.RB.PTP.Loss.Abnorm with the release
cause "User Inactive."
0: When this switch is turned off, the resources of a
UE will not be released if the UE fails to move from
the CELL_FACH to CELL_DCH state three times.
That is, the UE remains in the CELL_FACH state.
0
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Whether the SRB can be switched over from DCHs
to HSPA channels immediately after the DRD
procedure in which the channel for carrying the SRB
is limited
0: This switch is turned off.
1: This switch is turned on. The SRB is switched
over from DCHs to HSPA channels immediately
after the DRD procedure.
0
Whether NSN CN, HW SRNC, and DRNC change
from the IUUP2 mode back to IUUP1 mode when
the Uu interface has one more 0 kbit/s data rate
than the Iu interface.
0
Whether a UE in the CELL_PCH or URA_PCH state is
allowed to set up a CS service after performing a
CELL_PCH/URA_PCH-to-CELL_DCH (P2D for short)
state transition
0: When this switch is turned off, the UE is allowed
to set up a CS service after performing a
CELL_PCH/URA_PCH-to-CELL_FACH (P2F for short)
state transition.
1: When this switch is turned on, the UE is allowed
to set up a CS service after performing a P2D state
transition.
It is recommended that
CORRM_RESERVED_SWITCH_1_BIT6 and
RESERVED_SWITCH_0_BIT14 are set to 1 when
RESERVED_SWITCH_0_BIT28 is set to 1.
0
Whether the frequency band of an inter-RAT
neighboring cell is set to 1900 MHz
0: This switch is turned off.
1: This switch is turned on.
0
Whether the optimized algorithm is used for HRNTI
0: When this switch is turned off, the optimizedalgorithm is not used. In this case, the Hamming
distance between two H-RNTIs is greater than or
equal to 1.
1: When this switch is turned on, the optimized
algorithm is used. In this case, the Hamming
distance between two H-RNTIs is greater than or
equal to 4.
0
Whether the relocation command sent from a
UMTS network to a GSM network carries the
encryption information element (IE) UEA0 when a
UE complying with 3GPP Release 6 or later is
handed over from the GSM network to the UMTS
network. In the scenario, the encryption function of
the GSM network is disabled.
0: When this switch is turned off, the relocation
command sent from the UMTS network to the GSM
network carries the IE UEA0.
1: When this switch is turned on, the relocation
command sent from the UMTS network to the GSM
network does not carry any IE about encryption.
0
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Whether the intra-frequency measurement reports
of UEs must contain synchronization information
about the cells in the active set
0: When this switch is turned off, the intra-
frequency measurement reports of UEs must
contain synchronization information about the cells
in the active set.
1: When this switch is turned on, the intra-frequency
measurement reports of UEs do not need to contain
synchronization information about the cells in the
active set.
1
Whether the intra-frequency ReadSFNInd in system
information SIB11/SIB12 of a cell is set to the fixed
value READ.
1
Whether the optimized database query algorithm is
enabled to reduce the CPU usage of the SPUb board
during cross-Iur handovers
0: When this switch is turned off, the optimized
database query algorithm is not used.
1: When this switch is turned on, the optimized
database query algorithm is used.
1
Whether to enable the FDPCH-code fault
rectification function.1
Whether the PS BE service rate is limited to a low
level after the UE transits from CELL_PCH to
CELL_DCH (P2D for short)
0: This switch is turned off. The PS BE service rate is
not limited.
1: This switch is turned on. The PS BE service rate is
limited to a low level.
1
Whether the user plane part of GPRS tunneling
Protocol (GTPU) is reconfigured when a UE in the
CELL_PCH state performs a cell update
1
Whether an SPU subsystem broadcasts the actual
Iub transmission delay of the NodeBs configured on
the SPU subsystem to other SPU subsystems at a
user-specified time
1: When this switch is turned on, an SPU subsystem
broadcasts the actual Iub transmission delay of the
NodeBs configured on the SPU subsystem to other
SPU subsystems at three o'clock in the early
morning.
0: This swtich is turned off.
1
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Whether preemption is allowed when CPU load is
high
0: When this switch is turned off, preemption is
allowed when CPU load is high.
1: When this switch is turned on, preemption is not
allowed when CPU load is high.
1
e er e c anne za on co e re ease y a
common channel is reserved during a common
channel reestablishment
0: When this switch is turned off, the channelization
code released by a common channel is not
reserved during a common channel
reestablishment. After a successful cell setup, the
channelization code used by the common channel
may change.
1: When this switch is turned on, the channelization
code released by a common channel is reserved
during a common channel reestablishment. After a
successful cell setup, the channelization code used
by the common channel remains unchanged.
1
Whether to start the delay timer for switching from
2 ms TTI to 10 ms TTI based on differentiated
fairness of users
0: This switch is turned off. The delay timer does not
start.
1: This switch is turned on. The delay timer starts.
1
Whether the RNC considers CE resource congestion
status when admitting HSUPA UEs
0: This switch is turned off. The RNC does not
consider CE resource congestion status when
admitting HSUPA UEs.1: This switch is turned on. The RNC considers CE
resource congestion status when admitting HSUPA
UEs.
1
e er e ma es a m ss on ec s ons on
RAB establishment when the resources required by
the RAB establishment of low-speed PS UEs do not
exceed the resources used by RRC connection
setup
0: The RNC does not make admission decisions but
directly sets up the RAB.
1: The RNC makes admission decisions on RAB
establishment. For the decision threshold
parameters, see the parameter description of theADD UCELLCAC command.
Note: If the spreading factor (SF) used for the RAB
establishment of a PS UE is greater than or equal to
the SFs reserved for handovers, such a PS UE is
referred to as a low-speed PS UE. The SFs reserved
for handovers are specified by UlHoCeResvSf and
UlHoCeResvSf in the ADD UCELLACAC command.
1
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Ec/No threshold for switching an uplink BE service
from the E-DCH to the DCH in weak coverage areas0
reserved. The reserved FACH resources are used forsignaling transmission, for example, P2F.
Value 0 indicates that no FACH resource is
reserved.
Values 1~30 indicate that FACH resources are
reserved for one to thirty UEs.
Any value greater than 30 indicates that no FACH
4294967295
Event 6A relative threshold at which uplink BE
services are switched from DCHs to E-DCHs based
on coverage conditions
0
Event 6B relative threshold at which uplink BE
services are switched from DCHs to E-DCHs based
on coverage conditions
255
Whether the HS-SCCH can preempt the code
resources occupied by Ues.0
scheduled every 64 frames.
1: When this switch is turned on, system
information messages are scheduled every 64
frames.
0
Whether system information SIB7 and MIB are sent
in one frame.
When this switch is turned on, system information
SIB7 and MIB are sent in the same frame.
0
Whether CS services can preempt the resources for
PS services during a CS RRC connection setup.0
Whether CS services can preempt the resources for
PS BE services.0
Whether codes are pre-allocated to HSPA services.
1: When this switch is turned on, codes are pre-
allocated to the HS-SCCH, E-AGCH, E-RGCH, and E-
HICH immediately after a cell is set up.
0: This switch is turned off.
0
Whether the RNC processes the first and the
retransmitted RRC connection setup requests from
a UE as one RRC connection setup request.
1: When this switch is turned on, the RNC processes
the first and the retransmitted RRC connection
setup requests from a UE as one RRC connection
setup request.
0: This switch is turned off.
0
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algorithm.
0: When this switch is turned off, the algorithm is
enabled, and the RNC will rectify CE calculation
errors caused by link deletion after softer
handovers.
1: When this switch is turned on, the algorithm is
0
Whether the RNC monitors and rectifies any error in
the number of HSPA users.
1: When this switch is turned on, the RNC rectifies
any faults in HSPA user resources.
0: When this switch is turned off, the RNC does not
rectify any faults in HSPA user resources.
0
Whether the RNC monitors and rectifies faults in CE
resources.
1: When this switch is turned on, the RNC rectifies
any faults in CE resources.
0
Whether the RNC monitors and rectifies any error in
the number of equivalent users.
1: When this switch is turned on, the RNC rectifies
any faults in equivalent user resources.
0
Whether the RNC monitors and rectifies faults in
code resources.
1: When this switch is turned on, the RNC rectifies
any faults in code resources.
0
Whether to enable flow control based on RRC
request queuing0
Amount of time the RNC waits for a cell update
message from a UE with ongoing CS services after
the RNC turns off the radio transmitter.Unit: ms
15000
Time the RNC waits for a cell update message from
a UE with only ongoing PS services after the RNC
turns off the radio transmitter.
Unit: ms
35000
Whether to enable NodeB-level call shock 0
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0
0
Whether the NodeB enables NCP congestion flow
control over RRC connection setup requests based
on service priorities
0: This switch is turned off.
1: This switch is turned on.
0
Whether an RNC is a preferred RNC for a NodeB
The meanings of different settings of RSVDBIT2 and
RSVDBIT3 are as follows:
RSVDBIT2 RSVDBIT3
0 0 Not defined
1 0 Preferred RNC
0 1 Non-preferred RNC
1 1 Invalid value
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Number of RRC connection setup requests that can
be admitted per second in a cell during NCP
congestion flow control
The number of RRC connection setup requests that
can be admitted per second in a NodeB equals to
the number of this parameter multiplies the
number of activated cells in the NodeB.
Value range: 2~255
0
Whether CS RAB establishment can use the code
resources reserved for handovers.0
Whether to enable cell-level call shock. 0
e er o scar connec on se up
requests retransmitted if timer T300 expires on the
UE side and to discard PS cell update requests
retransmitted in the CELL_PCH state if timer T302
expires on the UE side
1: When this switch is turned on, such
retransmitted PS RRC connection setup requests
and PS cell update requests are discarded.
0: This switch is turn off.
0
Whether to enable the optimized F-DPCH code
allocation algorithm and to involve F-DPCH codes incode adjustments
0: This switch is turned off.
1: This switch is turned on.
0
0
0
RRC connection setup is optimized. RSVDBIT8,
RSVDBIT9, and RSVDBIT10 under the cell-level
reserved parameter RsvdPara1 are used to specify
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0
Whether resource allocation for CS RAB setups is
optimized.
1: When this switch is turned on, the power, code,
and CE resource occupation thresholds used during
an RRC connection setup and CS RAB setup are
optimized to increase the CS service setup success
rate.
0: This switch is turn off.
0
p n resource occupa on res o an
downlink code and CE resource occupation
threshold used during an RRC connection setup.
This switch is valid only when the switch
RSVDBIT11 is turned on.
0: When this switch is turned off, SF64 is reserved
for uplink CE resources, and SF128 is reserved for
downlink code and CE resources.
1: When this switch is turned on, SF16 is reserved
for uplink CE resources, and SF32 is reserved for
downlink code and CE resources.
0
Whether overload congestion control (OLC) can be
performed for gold users.
0: When this switch is turned off, OLC is not
performed for gold users.
1: When this switch is turned on, OLC can be
performed for gold users.
0
Whether the PS domain of a cell is blocked
0: This switch is turned off.
1: This switch is turned on. PS services of all
operators in the cell cannot access the network.
0
Whether static relocation request messages
contain the calculationTimeForCiphering IE0: This switch is turned off.
1: This switch is turned on. Static relocation request
messages contain the calculationTimeForCiphering
IE.
0
Whether initial TTI selection is allowed for
differentiated BE services based on fairness
0: This switch is turned off. The TTI is selected
according to the original algorithm.
1: This switch is turned on. In the dynamic TTI
adjustment algorithm for differentiated BE services
based on fairness, HSUPA UEs use 10-ms TTI if the
RTWP, occupied Iub bandwidth, or consumed CE
resources are congested.
0
Whether wideband AMRC is allowed when the
AMRC algorithm switch
(CORRM_CS_AMRC_SWITCH) is turned on
0: When this switch is turned off, wideband AMRC is
allowed.
1: When this switch is turned on, wideband AMRC is
not allowed.
0
.
different power consumption thresholds. The loose
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Whether narrowband AMRC is allowed when the
AMRC algorithm switch
(CORRM_CS_AMRC_SWITCH) is turned on
0: When this switch is turned off, narrowband AMRC
is allowed.
1: When this switch is turned on, narrowband AMRC
is not allowed.
0
procedure are triggered when the timer for
message exchange on the Uu or Iub interface
expires
0: When this switch is turned off, a DRD and an
H2D procedure are not triggered if the timer for
message exchange on the Uu or Iub interface
expires.
1: When this switch is turned on, a DRD and a H2D
procedure can be triggered if the timer for message
exchange on the Uu or Iub interface expires.
This switch is turned on by default.
0
- -
contained in a CELL UPDATE CONFIRMATIONmessage from the RNC to a UE in the CELL_FACH
state during the cell update due to a traffic radio
bearer (TRB) reset
0: This switch is turned off. No maxAllowedUL-TX-
Power IE is contained in the CELL UPDATE
CONFIRMATION message from the RNC to the UE in
the CELL_FACH state during the cell update due to
TRB reset.
1: This switch is turned on. A maxAllowedUL-TX-
Power IE is contained in the CELL UPDATE
CONFIRMATION message from the RNC to the UE in
the CELL_FACH state during the cell update due to
0
Whether to use the optimized TTI switchingalgorithm for BE services
0: The optimized algorithm does not take effect.
The original mechanism is implemented.
1: The optimized algorithm takes effect. After
HSUPA services are configured or reconfigured with
10 ms TTI due to network resource (admission CEs,
RTWP, consumed Iub bandwidth, or consumed CEs)
congestion or insufficient coverage, these UEs
cannot change to use 2 ms TTI if no data needs to
be transmitted.
0
Whether a UE uses the same CQIReF and CQIFbCk
parameters in the single-RLS state and multi-RLS
state
0: This switch is turned off.
1: This switch is turned on. A UE uses the same
CQIReF and CQIFbCk parameters in the single-RLS
state and multi-RLS state. The CQIReFforSHO and
CQIFbCkforSHO parameters are invalid.
0
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Whether the RNC allows a UE to set up CS services
during a state transition from CELL_FACH to
CELL_PCH or URA_PCH (F2P)
0: When this switch is turned off, if a UE initiates a
CS service during an F2P state transition, the RNC
does not allow the UE to set up the CS service and
continues performing the F2P state transition.
1: When this switch is turned on, if a UE initiates a
CS service during an F2P state transition, the RNC
stops performing the F2P state transition and
allows the UE to set up the CS service.
0
Whether the user-plane delay is optimized for the
LTE-to-UMTS handover in the PS domain
0: This switch is turned off. The user-plane delay is
not optimized.
1: This switch is turned on. The user-plane delay
decreases after being optimized.
0
Whether to use the 13.6 kbit/s signaling rate for
incoming inter-RAT handovers triggered by CSFB
0: This switch is turned off, a signaling rate is
selected based on the original algorithm.
1: This switch is turned on. The 13.6 kbit/s
signaling rate is used for incoming inter-RAT
handovers triggered by CSFB.
0
Whether the RNC makes a pre-admission decision
on intra-RAT DRDs or redirections during an RRC
connection setup
0: When this switch is turned off, the RNC does not
make a pre-admission decision on intra-RAT DRDs
or redirections during an RRC connection setup.
1: When this switch is turned on, the RNC makes a
pre-admission decision on intra-RAT DRDs or
redirections during an RRC connection setup.
0
Whether to enable the DL Layer 2 Improvementfeature for E_PCH-incapable UEs processing only
PTT services
0: When this switch is turned off, the DL Layer 2
Improvement feature is not enabled for E_PCH-
incapable UEs processing only PTT services.
1: When this switch is turned on, the DL Layer 2
Improvement feature is enabled for E_PCH-
incapable UEs processing only PTT services.
0
Whether to enable the DL Layer 2 Improvement
feature for E_PCH-incapable UEs that have ongoing
PTT services
0: When this switch is turned off, the DL Layer 2
Improvement feature is enabled for E_PCH-
incapable UEs that have ongoing PTT services.
1: When this switch is turned on, the DL Layer 2
Improvement feature is not enabled for E_PCH-
incapable UEs that have ongoing PTT services.
0
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Whether the target BLER is adjusted for voice
services based on uplink cell congestion
0: When this switch is turned off, the outer loop
power control (OLPC) algorithm uses the target
BLER configured at the OMU.
1: When this switch is turned on, the OLPC
algorithm uses the target BLER configured at the
OMU if the best cell of a UE processing voice
services is in the LDR or OLC state in the uplink. If
the best cell is not in the LDR or OLC state, the
OLPC algorithm uses 20% of the target BLER
configured at the OMU.
0
SF threshold for downlink CE resources and code
resources used when the pre-admission switch for
intra-RAT DRDs or redirections during RRC
connection setups is turned on
The mapping between the value of this parameter
and the SF is as follows:
1: SF_8
2: SF_16
3: SF_324: SF_64
5: SF_128
6: SF_256
7: SF_512
0 or a value greater than 7: SF_128
5
Absolute threshold for uplink CE resources used
when the pre-admission switch for intra-RAT DRDs
or redirections during RRC connection setups is
turned on
2
-
admission switch for intra-RAT DRDs or redirections
during RRC connection setups is turned on. This
threshold is based on the number of equivalent
users in the uplink and the carrier power in the
downlink.
Unit: %
If the value of this parameter exceeds 100, the RNC
2
Upper Ec/No threshold for the best cell that meets
the requirements for hard handovers
The mapping between the graphical user interface
(GUI) value of this parameter and the actual Ec/No
value is as follows:
0: -12 dB
123: -1 dB to -23 dB
A GUI value greater than 23: -24 dB
0
Lower Ec/No threshold for the best cell that meets
the requirements for hard handovers
The mapping between the GUI value of this
parameter and the actual Ec/No value is as follows:
0: -18 dB
123: -1 dB to -23 dB
A GUI value greater than 23: -24 dB
0
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SPU CPU usage threshold for allowing cell-level
CAPS flow control
If the SPU CPU usage is higher than this threshold,
cell-level CAPS flow control is allowed.
Value range: 1~100
Recommended value: 80
Parameter relationship: The value of the
ReservedU8Para2 parameter must be greater than
or equal to the value of the ReservedU8Para3
parameter.
0
SPU CPU usage threshold for forbidding cell-level
CAPS flow control
If the SPU CPU usage is lower than this threshold,
cell-level CAPS flow control is forbidden.
Value range: 1~100
Recommended value: 70
Parameter relationship: The value of the
ReservedU8Para2 parameter must be greater than
or equal to the value of the ReservedU8Para3
parameter.
0
Whether the maximum allowable number of users
on the FACH is 60 or 30.
When this switch is turned off, the maximum
allowable number of users on the FACH is 30.
When this switch is turned on, the maximum
allowable number of users on the FACH is 60.
0
Whether a UE can preempt resources during a state
transition from CELL_PCH to CELL_DCH (P2D for
short) with the cause value of Originating
Conversational Call or Terminating Conversational
Call after the cell resource admission fails
0: This switch is turned off. The UE cannot preempt
resources after the cell resource admission fails.
1: This switch is turned on. The UE can preempt
resources from PS BE services after the cell
resource admission fails.
0
Whether PTT services can preempt resources
occupied by PS BE services if cell resource
admission fails during a state transition from
CELL_PCH or URA_PCH to CELL_DCH (P2D)
0: When this switch is turned off, PTT services
cannot preempt resources occupied by PS BE
services after cell resource admission fails during a
P2D state transition.
1: When this switch is turned on, PTT services can
preempt resources occupied by PS BE services after
cell resource admission fails during a P2D state
transition.
0
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Whether rate decrease of BE services is enabled
only for R99 users in the uplink and downlink in the
algorithm for optimization of R99 and HSUPA users
fairness
0: When this switch is turned off, this algorithm
reduces the data rates of BE services for R99 users
in the uplink and for R99 or HSUPA users in the
downlink.
1: When this switch is turned on, this algorithm
reduces the data rates of BE services for only R99
users in the uplink and downlink.
0
Whether RRC flow control based on CPU usage is
enabled
0: This switch is turned off. If the SPU CPU usage
reaches 90%, flow control is performed on all RRC
connection setup requests except emergency call
requests.
1: This switch is turned on. flow control is
performed on RRC connection setup requests
except emergency call requests based on
connection priorities. Different thresholds are setfor different service priorities.
0
Whether the self-healing function is enabled for
spreading codes
0: This switch is turned off.
1: This switch is turned on. The self-healing function
is enabled for spreading codes.
0
Whether the self-healing function is enabled for
digital resources, such as the number of equivalent
users, CEs, and HSPA UEs
0: This switch is turned off.
1: This switch is turned on. The self-healing function
is enabled for digital resources.
0
e er an common c anne can preemp
code resources used by common users during
HSUPA common channel setup
0: When this switch is turned off, an HSUPA
common channel cannot preempt code resources
used by common users during HSUPA common
channel setup
1: When this switch is turned on, an HSUPA
common channel can preempt code resources used
by common users during HSUPA common channel
0
Whether the HS-PDSCH codes must contain
SF(16,15)
0: When this switch is turned off, the HS-PDSCH
codes must contain SF(16,15).
1: When this switch is turned on, there is no
restriction on the HS-PDSCH codes.
0
-
RRC connection setup requests based on CPU
usage
Value range: 70~90
0
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Threshold for starting flow control over medium-
priority RRC connection setup requests based on
CPU usage
Value range: 70~90
Recommended value: 85
0
-
RRC connection setup requests based on CPU
usageValue range: 70~90
0
a me con a ne n an
REJECT message for a low-priority RRC connection
setup request
An RRC connection setup request has a high
priority when either of the following conditions is
met:
- The value of the CN domain identity IE contained
in the RRC CONNECTION REQUEST message sent
from the UE to the RNC is CS domain.
- The cause value contained in the RRC
CONNECTION REQUEST message is Originating
Conversational Call, Terminating Conversational
Call, or Emergency Call.
0
Whether active link re-establishment is allowed
after an SRB reset
0: This switch is turned on. Active link re-
establishment is allowed after the RNC layer 2
reports the SRB reset.
1: This switch is turned off. Active link re-
establishment is not allowed after the RNC layer 2
reports the SRB reset.
1
Whether active link re-establishment is allowed
after the radio link fails
0: This switch is turned on. Active link re-
establishment is allowed after the RNC receives aRADIO LINK FAILURE INDICATION message and the
timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires.
1: This switch is turned off. Active link re-
establishment is not allowed after the RNC receives
a RADIO LINK FAILURE INDICATION message and
the timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires.
1
Whether CS services can trigger active link re-
establishment
0: This switch is turned on. CS services can trigger
active link re-establishment.1: This switch is turned off. CS services cannot
trigger active link re-establishment.
1
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Whether PS services can trigger active link re-
establishment
0: This switch is turned on. PS services can trigger
active link re-establishment.
1: This switch is turned off. PS services cannot
trigger active link re-establishment.
1
Switch for the UE SRB reset procedure
0: This switch is turned on. The RNC triggers active
link re-establishment and retains the RRC
connection after receiving a CELL UPDATE message
indicating the SRB reset from the UE.
1: This switch is turned off. The RNC releases the
RRC connection after receiving a CELL UPDATE
message indicating the SRB reset from the UE.
1
0: This switch is turned on. If there are CS services
and the last radio link fails, the RNC waits for the
radio link to restore before the timer T313 expires.
1: This switch is turned off. If there are CS services
and the last radio link fails, the RNC waits for the
radio link to restore before the original timer
1
RNC-level switch for the D2F procedure of UEs
supporting fast dormancy
0: This switch is turned on. UEs supporting fast
dormancy trigger the D2F procedure.
1: This switch is turned off. UEs supporting fast
dormancy trigger the D2P procedure.
1
Whether the RB release due to SCRI during RB
reconfiguration is calculated as a call drop
0: This switch is turned on. The RB release due to
SCRI during reconfiguration is not calculated as acall drop.
1: This switch is turned off. The RB release due to
SCRI during reconfiguration is calculated as a call
drop.
1
RAN flow control switch
0: This switch is turned on. The RNC contains the
flow control priority information in NBAP RADIO
LINK SETUP REQUEST messages. The NodeB
performs flow control according to the flow control
priority information.
1: This switch is turned off. The RNC does not
contain the flow control priority information in
NBAP RADIO LINK SETUP REQUEST messages.
1
Whether the PCHR log records all call drops
1: This switch is turned on. In the hybrid service
scenario, the PCHR log records all call drops.
0: This switch is turned off. In the hybrid service
scenario, the PCHR log records the last call drop.
0
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drop
1: This switch is turned on. The CS RAB release is
calculated as a call drop if the RNC initiates the CS
RAB release with the cause value of abnormal but
the CN is with the release cause value of normal.
0: This switch is turned off. The CS RAB release is
not calculated as a call drop if the RNC initiates theCS RAB release with the cause value of abnormal
but the CN is with the release cause value of
0
e er e re ease s ca cu a e as a
service drop
1: This switch is turned on. The PS RAB release is
calculated as a service drop if the RNC initiates the
PS RAB release with the cause value of abnormal
but the CN is with the release cause value of
normal.
0: This switch is turned off. The PS RAB release is
not calculated as a service drop if the RNC initiates
the PS RAB release with the cause value of
abnormal but the CN is with the release cause
0
Whether KPIs of iPhone UEs supporting fast
dormancy are optimized
0: This switch is turned off. KPIs of iPhone UEs
supporting fast dormancy are not optimized.
1: This switch is turned on. KPIs of iPhone UEs
supporting fast dormancy are optimized.
0
Whether the RNC selects an operator based on
information elements (IEs) Establishment cause
and Routing parameter carried in messages RRC
CONNECTION REQUEST and INITIAL DIRECT
TRANSFER, respectively when the MOCN feature is
enabled. MOCN stands for Multi-Operator Core
Network.1: indicates that the switch is turned on. When this
switch is turned on, the RNC directly sends an
INITIAL UE MESSAGE message to the unique
operator under the following conditions:
The value for the Establishment cause IE carried in
the RRC CONNECTION REQUEST message is not
Emergency Call or Registration.
The RNC can uniquely identify an operator based on
the Routing parameter IE carried in the INITIAL
DIRECT TRANSFER message sent by the UE.
0: indicates that the switch is turned off. When this
switch is turned off, the RNC selects operators one
by one from the shared operator group until the UE
is accepted by an operator.
0
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Whether the RNC selects an operator based on the
NAS-PDU IE carried in the DIRECT TRANSFER
message sent by a CN when the MOCN feature is
enabled.
1: indicates that the switch is turned on. When this
switch is turned on, the RNC parses the NAS-PDU IE
carried in the DIRECT TRANSFER message.
If the type of NAS-PDU is LOCATION UPDATING
ACCEPT, ROUTING AREA UPDATE ACCEPT, or
ATTACH ACCEPT, the RNC selects the corresponding
operator to provide service for the UE.
If the type of NAS-PDU is LOCATION UPDATING
REJECT, ROUTING AREA UPDATE REJECT, or ATTACH
REJECT, the RNC attempts to select another
operator.
0: indicates that the switch is turned off. When this
switch is turned off, the RNC does not parse the
NAS-PDU IE.
0
Whether the RNC preferentially selects the
configured default operator to provide service for a
UE when the MOCN feature is enabled.
1: indicates that the switch is turned on. When this
switch is turned on, the RNC preferentially selects
the default operator configured by running the SET
UOPERATORSHARINGMODE command if the
configuration is valid.
0: indicates that the switch is turned off. When this
switch is turned off, the RNC selects an operator
based on the existing policy.
0
Whether the RNC selects an operator based on the
NAS-PDU IE carried in the INITIAL DIRECT
TRANSFER message sent by the UE when the MOCN
feature is enabled.
1: indicates that the switch is turned on. When thisswitch is turned on, the RNC parses the NAS-PDU IE
carried in the INITIAL DIRECT TRANSFER message.
If the type of NAS-PDU is LOCATION UPDATING
REQUEST, ROUTING AREA UPDATE REQUEST, or
ATTACH REQUEST, the RNC selects operators one
by one from the shared operator group until the UE
is accepted by an operator.
0: indicates that the switch is turned off. When this
switch is turned off, the RNC does not parse the
NAS-PDU IE.
0
Whether the RNC forwards an INITIAL UE MESSAGE
to a CN in scenarios with Iu Flex enabled when the
CN state on the RNC side is NORMAL
1: This switch is turned on. The CN state on the RNC
side changes from NORMAL to BLOCK, and the RNC
forwards only INITIAL UE MESSAGE with the cause
value of paging response.
0: This switch is turned off. The RNC does not
change the CN state on the RNC side.
0
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The switch controls whether the RNC reduces
information recorded in a PCHR log for a normal
procedure.
If this switch is turned on, the RNC reduces
information recorded in a PCHR log for a normal
procedure. Only the following information is
recorded:
Common information
Signaling access information block
RAB information block
SHO header information
Information block for inter-RAT outgoing
handover
Information block for statistics excluding those
for the DCCC procedure
Information about intra-frequency neighboring
cell optimization
Information about pilot pollution detection
RRC release header information
A procedure is abnormal under any of the following
conditions: The RRC connection setup fails. The
RAB setup fails. The RAB is abnormally released.
The type of the NAS-PDU carried in the DIRECT
TRANSFER message is ATTACH REJECT, RAU
REJECT, or LAU REJECT. All other procedures are
normal ones.
If this switch is turned off the RNC does not reduce
ON
The switch controls whether the RNC sends the CN
an RAB ASSIGN RSPONSE message after IUUP
initiation is complete during an RAB setup.
When this switch is turned on, the RNC sends an
RAB assignment response message to the CN
during the RAB setup procedure only after the IUUP
initialization procedure has been completed.
When this switch is turned off, the RNC sends anRAB assignment response message to the CN
regardless of whether the IUUP initialization
procedure is complete.
OFF
Whether all the following quick reconfiguration
procedures are supported for a hard handover of
CS services:
Ph sical channel reconfi uration
0
Whether all the following quick reconfiguration
procedures are supported for a hard handover of
PS services:
Physical channel reconfiguration
Transport channel reconfiguration
RB setup or reconfiguration
1: When this switch is turned on, all these quickreconfiguration procedures are supported for a
hard handover of PS services.
0: When this switch is turned off, all these quick
reconfiguration procedures are not supported for
a hard handover of PS services.
0
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Whether all the following quick reconfiguration
procedures are supported for a hard handover
across the Iur interface:
Physical channel reconfiguration
Transport channel reconfiguration
RB setup or reconfiguration
1: When this switch is turned on, all these quick
reconfiguration procedures are supported for a
hard handover across the Iur interface.
0: When this switch is turned off, all these quick
reconfiguration procedures are not supported for
a hard handover across the Iur interface.
0
Whether the RNC cancels an inter-frequency
handover of 12.2 kbit/s AMR voice services after
a UE returns a PHYSICAL CHANNEL
RECONFIGURATION FAILURE message
1: When this switch is turned on, the RNC
cancels an inter-frequency handover of 12.2
kbit/s AMR voice services after a UE returns a
PHYSICAL CHANNEL RECONFIGURATION
FAILURE message.0: When this switch is turned off, the RNC does
not cancel an inter-frequency handover of 12.2
kbit/s AMR voice services after a UE returns a
PHYSICAL CHANNEL RECONFIGURATION
FAILURE message.
0
Whether the RNC sends MM NULL messages to
the CN
1: When this switch is turned on, the RNC
instead of the CN sends an IDENTITY
REQUEST message to a UE. Upon receiving an
IDENTITY RESPONSE message from the UE,
the RNC sends an MM NULL message to the
CN.0: When this switch is turned off, the RNC does
0
Whether the RNC adjusts the activation time for
encryption parameters based on an RB SETUP
COMPLETE message
1: When this switch is turned on, the RNC does
not adjust the activation time for encryption
parameters as long as the difference between the
activation times specified in an RB SETUP
COMPLETE message and in the corresponding
RB SETUP message is smaller than 200
connection frame numbers (CFNs).
0: When this switch is turned off, the RNC
always adjusts the activation time for encryption
parameters based on an RB SETUP COMPLETE
message, regardless of the preceding difference.
0
Whether to enable the paging detection function on
the DPUb/DPUe board. Value 0 indicates that the
paging detection function is enabled. Value 1
indicates that the paging detection function is
disabled.
0
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Whether to allow CID preemption when a conflict
occurs during CID allocation.
After this switch is turned on, the following
procedure is performed if a CID requested by the
peer end has been occupied:
If the CID has been occupied by the peer end, the
CID will be preempted by the peer end and the
service occupying that CID will be released.
If the CID has been occupied by the local end, the
service of the peer end fails and the service
occupying that CID will be checked to ensure that it
can be released normally.
This function is enabled when this parameter is set
to ON, and this function is disabled when this
parameter is set to OFF.
OFF
Whether the higher 16 bits of SwitchParameter9
take effect. They take effect after this switch is
turned on.
OFF
Processing policy after a fault is detected on an IP
path over the Iub interface.
The meaning of the value is as follows:
0: the IP path will be isolated.
1: the priority of the IP path will be lowered.
0
Processing policy after a fault is detected on an IP
path over the Iu-CS interface.
The meaning of the value is as follows:
0: the IP path will be isolated.
1: the priority of the IP path will be lowered.
1
Processing policy after a fault is detected on an IP
path over the Iu-PS interface.
The meaning of the value is as follows:
0: the IP path will be isolated.
1: the priority of the IP path will be lowered.
1
Processing policy after a fault is detected on an IPpath over the Iur interface.
The meaning of the value is as follows:
0: the IP path will be isolated.
1: the priority of the IP path will be lowered.
1
Whether to enable the M3UA link check function.
When this parameter is not set to 0xCC, the state
consistency check function between the SCTP link
and M3UA link will be enabled, and the SCTP link
will be set up again if they stay in different states.
0
Highest threshold for flow control on the interface
board. This switch takes effect only when
SwitchParameter6 is turned on. The traffic load on
a single-core interface board must not exceed this
threshold during service admission.
The default value of this parameter is 0. When this
parameter is set to 0 the default threshold 800 is
applied.
0
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Whether to enable the rollback of the flow control
on interface boards.
This function is enabled when this parameter is set
to 0, and this function is disabled when this
parameter is set to 1.
0
Whether to enable flow control compensation on
interface boards.
This function is enabled when this parameter is set
to 0, and this function is disabled when this
parameter is set to 1.
0
e ay o e ro ac o e ow con ro on n er ace
boards. When this parameter is set to 00000000,
the default value 600 ms is applied.
Value range: 10~1000
Unit: 10 ms
If requested resources are not allocated to an
interface board and are released within the
duration specified by this parameter, the resource
request is rolled back. If requested resources are
not allocated to an interface board and are not
released within the duration specified by this
parameter, the resource request is partly rolled
0
Whether the setting of the period that is specified
by the low 16 bits of SwitchParameter10 takes
effect.
0
Period for calculating the average CPU load that is
used for adjusting the flow control threshold for
interface boards. This period ranges from 1 second
to 10 seconds.
The default value is 0. When this parameter is set
to 0 the default period 1s is applied.
0
Whether the transmission resource detection and
self-healing function is enabled0: This switch is turned on.
1: This switch is turned off.
0
Whether to enable forcible SAAL link loopback
detection. The link detection period is five minutes.
After this switch is turned on, the forcible SAAL link
loopback detection is enabled if more than three
times of SAAL link faults are detected in each
period for consecutive three periods.
This function is enabled when this parameter is set
to 0 and this function is disabled when this
parameter is set to 1.
0
switch for the MPU.
When this bit is set to 0, the switch is turned on,and when this bit is set to 1, the switch is turned
off.
0
Whether to switch on the MPU performance
improving function.
This function is switched on when this parameter is
set to 0 and is switched off when this parameter is
set to 1.
0
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Whether flow control is performed on SCTP packets
based on the CPU usage of an XPU board.
0: When this switch is turned on, flow control is
triggered for SCTP packets if the CPU usage of an
XPU board exceeds flow control threshold.
1: This switch is turned off.
0
The threshold of flow control performed on SCTP
packets based on the CPU usage of an XPU board.
When the flow control switch is turned on and the
CPU usage of an XPU board exceeds flow control
threshold, the flow control will be triggered.
0
Whether the Iur AAL2 route load sharing is enabled
20110803: This switch is turned on.
Other values: This switch is turned off.
0
Switch for the MSP check function of all the optical
ports in one subrack. MSP processing depends on
the message transmission between the SCU and
the interface board and the status consistency
between the two boards. To ensure reliable MSP
processing, the MSP check function is enabled for
optical ports by the default value (OFF).
OFF
Whether to enable the function of resetting the
AOUa logic. A soft reset is required for recovering an
AOUa board that is malfunctioning. The function is
enabled by the default value (OFF).
OFF
Timer_CU for the AAL2PATH. This timer affects the
AAL2 transmission efficiency and delay. This
command can be used to set the timer only for the
AOUc and UOIc boards. For the
AEUa/AOUa/UOIa_ATM boards, the ADD AAL2PATH
command can be used to set this timer.
Unit: 0.05ms
Whether to reload the microcode of a board
periodically. The microcode of the
AEUa/PEUa/AOUa/POUa/UOIa/FG2a/GOUa boards
can be reloaded periodically to ensure reliability of
the boards. Bit7 to bit16 of this parameter are set
to 0 by default, which indicates that the microcode
is reloaded once every week and the start time of
microcode reloading is 04:00. If bit7 to bit16
indicates a value of 1023, the function of reloadingmicrocode is disabled.
0
0x5
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Impact on Radio Network Performance Introduced in Version
When this switch is set to 0, RLC entities must be re-
established in both uplink and downlink during F2D,
causing the UE rate to slowly increase and slightly reducingthe throughput. When this switch is set to 1, RLC entities
can be re-established in only the uplink or downlink during
F2D. In this case, the UE rate increases properly.
Versions earlier than V900R011
V900R011C00SPC700V900R012
V900R013
When this switch is turned on, SRBs cannot be switched
over from DCHs to HSPA channels during directed retry.
V900R012C01SPC200
V900R013
Turning on this switch prevents inconsistency in uplink and
downlink AMR mode configurations. This solves the
compatibility issues of some UEs.
Versions earlier than V900R011
V900R011C00SPC700
V900R012
V900R013
When this switch is turned on, the RNC determines whether
the uplink coverage of a UE is insufficient during BE serviceestablishment based on the Ec/No reported by the UE in
the RRC connection establishment phase. If the reported
Ec/No is lower than the Ec/No decision threshold, the
uplink coverage of the UE is insufficient. In this case, the
RNC establishes the BE service on R99 channels instead of
on HSUPA channels. The Ec/No decision threshold specifies
whether to services should be switched over from E-DCHs to
DCHs. This prevents call drops when HSUPA signals are
weaker than R99 signals.
V900R012C01SPC506
V900R013
This switch is added to enable the optimized downlink-load-
based directed retry algorithm. The optimized algorithm is
used to solve the following problem: When HSPA+ UEs
access cells not supporting HSPA+, these HSPA+ UEs
cannot use HSPA+ features or DC-HSDPA or uplink load
balancing does not take effect for DC-HSDPA.
V900R012C01SPC500
V900R012C01SPH206V900R013
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If this switch is turned on and the cell HSUPA function is
enabled, BE services can be switched over from E-DCHs to
DCHs due to weak coverage. This reduces the service drop
rate.
V900R012C01SPC506
V900R013
When this switch is turned on, the D2F procedure is
triggered regardless of the existence of the CCCH over the
Iur interface. If the D2F procedure fails, directed signaling
connection re-establishment (DSCR) is triggered to prevent
congestion of UEs in the CELL_DCH state under the RNC.
V900R012C01SPC500
V900R012C01SPH204
V900R013
For UEs that obtain the transmission block size (TbSize)
based on the 0 kbit/s transport format (TbNum * TbSize):
When this parameter is set to 0, the transmission block size
is 0 and the AMR speech service fails. When this parameter
is set to 1, the transmission block size is TbSize and the
AMR speech service is normal.
V900R011C00SPH726
V900R012C01SPC500
V900R013
When this switch is turned on, multiple cross-Iur RLs
belonging to the same DRNC can be added simultaneously.
If an RL fails to be added with the failure cause of
RadioNetwork:unspecified (14), the RNC attempts to re-
establish the RL only once.
V900R012C01SPC506
V900R013
When the switch is turned on, the uplink PS service must be
carried on DCHs if CS and PS services co-exist. Establishing
PS services on DCHs reduces the number of physical
channel reconfigurations and RB reconfigurations triggered
by various reasons. This reduces the call drop rate of CS
services in combined CS and PS services.
V900R012C01SPC506
V900R013
Due to a compatibility issue, some UEs fail to move from
the CELL_FACH to CELL_DCH state, which causes the UEs to
remain in the CELL_FACH state. The UEs in the CELL_FACH
state, however, transmit data at low rates. This affects the
user experience.
V900R012C01SPH222
V900R013
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When CORRM_RESERVED_SWITCH_1_BIT6 is set to 1,
setting RESERVED_SWITCH_0_BIT2 and
RESERVED_SWITCH_0_BIT14 to 1 saves system resources.
This also prevents KPIs from deteriorating due to a
decrease in system capacity and reduces the risks of CS
service admission rejections. The call drop rate of
combined CS and PS services may increase because an RB
reconfiguration is required for transmitting heartbeat
packets or other PS services.
V900R012C01SPH518V900R013C00SPC520
When this switch is turned on, downlink PS services must
be carried on DCHs if a UE that complies with 3GPP
Release 6 or later runs combined CS and PS services.
Establishing PS services on DCHs reduces the number of
physical channel reconfigurations and RB reconfigurations
triggered by various causes. This reduces the call drop rateof CS services in combined CS and PS services.
V900R012C01SPH512
V900R013C00SPC500
When this switch is turned on, the RNC releases all
resources for a UE if the following conditions are met:
The UE performs a CELL_DCH-to-CELL_FACH state
transition.
The FACH is congested.
The UE is processing a non-real-time PS service that has a
traffic volume of 0 bytes. This increases the number of RRC
connection setups and RAB setups.
V900R012C01SPH516
V900R012C01SPH224
V900R013C00SPC510
When this switch is turned on, directed retry and channel
fallback are allowed after a P2D procedure fails. This
increases the P2D success rate.
V900R012C01SPH516
V900R013
When this switch is turned on, if the Iur CCH switch isturned off during a cross-Iur soft handover and the PTT
service meets the D2F trigger conditions, then:
A DSCR procedure may be triggered if the best cell is a
DRNC cell.
A D2F procedure may be performed if the best cell is an
SRNC cell.
When this switch is turned off, the original processing
procedure is performed.
Turning on this switch prevents UEs running PTT services
from staying in the CELL_DCH state after their PTT services
are terminated because CELL_DCH-to-CELL_FACH-to-
CELL_PCH (D2F2P for short) procedures fail to be
performed. This reduces UE power consumption and saves
network resources.
V900R012C01SPH516
V900R013C00SPC500
When this switch is turned on, the RNC performs a low-
activity rate algorithm on a UE that uses DCHs in only the
uplink or downlink. The low-activity rate algorithm saves
cell resources in the direction where it applies, but may
reduce the transmission rate in the reverse direction.
V900R012C01SPH516
V900R013C00SPC500
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If the active set of a UE has too many cells, the
measurement reports sent by the UE are large, which may
lead to SRB reset.
V900R011C00SPH726
V900R012C01SPC500
V900R012C01SPH202
V900R013
When this switch is turned on, the intra-frequency
ReadSFNInd in system information SIB11/SIB12 of a cell is
set to the fixed value READ. This prevents call drops of
some UEs during soft handovers and thereby increases the
success rate of soft handovers.
Versions earlier than V900R011
V900R011C00SPH726
V900R012C01SPC500
V900R013
By default, this switch is turned on. When this switch is
turned on, the optimized database query algorithm is
enabled to reduce the CPU usage of the SPUb board during
cross-Iur handovers.
V900R011C00SPH726
V900R012C01SPC500
V900R013
If any exception occurs during FDPCH code allocation, this
function rectifies the fault and restores cell capacity.
V900R012C01SPH516
V900R013C00SPC500
When this switch is turned on, network resources are saved.
When this switch is turned off, network resources may be
wasted.
V900R012C01SPH516
V900R013C00SPC510
When this switch is turned off, the GTPU is not reconfigured
if a UE in the CELL_PCH state performs a cell update with a
cause value of cell reselection, periodical cell update, or re-
entered service area. This prevents a significant increase in
the GOUa CPU usage after the CELL_PCH function is
enabled.
V900R013C00SPC510
When this switch is turned off, service setup may fail or call
drops may occur if the difference between the actual Iub
transmission delay and the configured value is large.
Turning on this switch solves the problem that SPU
subsystems in newly added RNC subracks cannot obtain
the Iub transmission delay of NodeBs configured on the
SPU subsystems in existing RNC subracks. This problem
occurs because the SPU subsystems in original subracks do
not broadcast Iub transmission delay.
V900R012C01SPH518
V900R013C00SPH526
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Turning on this switch increases the setup success rate of
high-priority services because preemption is allowed but
also increases CPU load.
V900R012C01SPH522
V900R013C00SPH526
When this switch is turned off, UEs cannot parse messages
on the PCH or FACH due to a change in the channelization
code used by a common channel. This reduces the setup
success rate of RRC connections.
Turning on this switch resolves this problem.
V900R012C01SPH522
V900R013C00SPC550
When this switch is turned on and the algorithm of
differentiated fairness based on users takes effect, HSUPA
2 ms TTI is less likely to be switched to HSUPA 10 ms TTI.
This improves users experience but leads to more resource
consumption.
When this switch is turned off and the algorithm of
differentiated fairness based on users takes effect, HSUPA
2 ms TTI is more likely to be switched to HSUPA 10 ms TTI.
V900R013C00SPH532
When this switch is turned on, more HSUPA UEs use 10 ms
TTI and HSUPA UEs are more likely to access the network.
When this switch is turned off, more HSUPA UEs use 2 ms
TTI during initial access, consuming more resources. As a
result, UEs are more likely to fall back from HSUPA
channels to R99 channels to set up services. The total
number of HSUPA UEs may decrease.
V900R013C00SPH532
When this switch is turned on, the PS RAB establishment
success rate may decrease and the handover success rate
may increase if code, credit, or power resources areinsufficient.
V900R013C00SPH532
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If the target cell Ec/No reported by a UE is lower than or
equal to the Ec/No threshold and the uplink BE service
meets the HSUPA bearer conditions, the uplink BE service
is switched from the E-DCH to the DCH. This prevents call
drops when HSUPA coverage performance is worse than
R99 coverage performance.
V900R012C01SPC506
V900R013
When the FACH is congested in a cell, reserving FACH
resources reduces the number of D2F state transitions but
increases the load on DCHs. The reserved FACH resources
can be used for P2F procedures. Therefore, the P2F success
rate increases.
V900R012C01SPC506
V900R012C01SPH222
V900R013C00SPC510
This threshold is a relative threshold for event 6A. If the
uplink transmit power of a UE is greater than or equal to the
event 6A absolute threshold, the UE reports event 6A.
V900R012C01SPC506
V900R013
This threshold is a relative threshold for event 6B. If the
uplink transmit power of a UE is greater than or equal to the
event 6B absolute threshold, the UE reports event 6B.
V900R012C01SPC506
V900R013
When this switch is turned on, the HS-SCCH can preempt
some of the code resources occupied by UEs. This increases
HSDPA code utilization and data rates but may lead to call
drops.
Versions earlier than V900R011
V900R012C01SPC200
V900R012C01SPC500
V900R013
Turning on this switch accelerates cell reselections by UEs.
V900R012C01SPH203
V900R012C01SPC500
V900R013C00SPC500
Turning on this switch accelerates cell reselections by UEs.
V900R012C01SPH203
V900R012C01SPC500
V900R013C00SPC500
Turning on this switch increases the setup success rate of
CS RRC connections but increases the PS call drop rate.
V900R012C01SPH220V900R012C01SPC506
V900R013
Turning on this switch increases the setup success rate of
CS services but increases the PS call drop rate.
V900R012C01SPH220
V900R012C01SPC506
V900R013
Turning on this switch increases HSDPA code utilization and
data rates.
V900R011C00SPC750
V900R012C01SPH516
V900R013C00SPC500
Turning on this switch affects the RRC connection setup
success rates.
V900R012C01SPH512
V900R013C00SPC300
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Turning off this switch increases the amount of CE
resources used for RNC maintenance. This may increase
the probability of UE admission failures.
Versions earlier than V900R011
V900R011C00SPC710
V900R012C01SPC200
V900R012C01SPC500
V900R013
When this switch is turned on, system reliability improves.
V900R011C00SPC300
V900R012C01SPC200
V900R012C01SPC500
V900R013
When this switch is turned on, system reliability improves.
V900R011C00SPC300
V900R012C01SPC200
V900R012C01SPC500
V900R013
When this switch is turned on, system reliability improves.
V900R011C00SPC300
V900R012C01SPC200
V900R012C01SPC500
V900R013
When this switch is turned on, system reliability improves.
V900R011C00SPC300
V900R012C01SPC200
V900R012C01SPC500
V900R013
Turning on this switch in heavy-traffic scenarios increases
CPU usage, system capacity, and the RAB setup success
rate. Turning on this switch eliminates CPU usage
fluctuation if heavy traffic persists.
V900R012C01SPC200
V900R012C01SPC500
V900R013
The original timer value is T313 + 12 seconds + T302 x
N302. The values of T313, T302, and N302 can be
configured by running SET UCONNMODETIMER. Customers
provided feedback that CS services are sensitive to the
interruption delay during service reestablishment. Theoriginal timer value is large, which affects user experience.
The timer value needs to be configured separately for CS
and PS services.
V900R012C01SPH224
V900R012C01SPH512
V900R013C00SPC510
The original timer value is T313 + 12 seconds + T302 x
N302. The values of T313, T302, and N302 can be
configured by running SET UCONNMODETIMER. Customers
provided feedback that CS services are sensitive to the
interruption delay during service reestablishment. The
original timer value is large, which affects user experience.
The timer value needs to be configured separately for CS
and PS services.
V900R013C00SPC200
Turning on this switch increases the RAB setup success ratein heavy-traffic scenarios.
Versions earlier than V900R011
V900R011C00SPC720
V900R012C01SPC200
V900R012C01SPC500
V900R013
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V900R013C00SPH526
V900R013C00SPH526
When this switch is turned on, the NodeB admits more RRC
connection setup requests of CS services.V900R013C00SPH529
None
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A smaller value of this parameter may cause unnecessary
flow control and a larger value of this parameter
contributes little to the flow control purpose.
V900R013C00SPH529
When this switch is turned on, CS RAB establishment can
use the code resources reserved for handovers. This
increases the CS service setup success rate but reduces the
handover success rate and increases the call drop rate.
V900R012C01SPC200
V900R012C01SPC500
V900R013
Turning on this switch increases the RAB setup success rate
in heavy-traffic scenarios.
V200R011C00SPC190
V900R011C00SPC720V900R012C01SPC200
V900R012C01SPC500
V900R013
Turning on this switch affects the RRC connection setup
success rate.
V900R012C01SPH224
V900R012C01SPH516
V900R013C00SPC510
When this switch is turned on, the number of HSPA codeadjustments increases. This may increase the HSDPA
throughput and call drop rate.
V900R012C01SPH512
V900R013C00SPC500
V900R012C01SPH522
V900R013C00SPH526
V900R012C01SPH522
V900R013C00SPH526
When strict admission is used, the power threshold for RRC
connection setups decreases, which may reduce the RRC
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V900R012C01SPH522
V900R013C00SPH526
Turning on this switch increases the CS service setup
success rate. However, reserving code and CE resources
during the RRC connection setup reduces the RRC
connection setup success rate.
V900R012C01SPH522
V900R013C00SPH526
When this switch and the RSVDBIT11 switch are both
turned on, the handover success rate and CS RAB
establishment success rate may increase, but the RRC
connection setup success rate may decrease.
V900R012C01SPH522
V900R013C00SPH526
When this switch is turned on, fast TF restriction, switching
from DCHs to CCHs, or service release may be performed
for gold users. However, this may lead to call drops for gold
users.
V900R012C01SPH522
V900R013C00SPH526
None V900R013C00SPH529
When this switch is turned on, the compatibility increases
between the Huawei RNC and the CN from another operator
in static relocation scenarios.
V900R013C00SPC500
When this switch is turned on and there are many HSUPA
UEs, the average UE throughput is low. In this case, the use
of 10-ms TTI upon congestion may reduce the number of 2-
ms to 10-ms TTI reconfiguration times, reducing the service
drop rate. When this switch is turned on and there are few
HSUPA UEs, the average UE throughput is high. In this case,
the use of 10-ms TTI upon congestion may increase the
number of 10-ms to 2-ms TTI reconfiguration times,
increasing the service drop rate.
V900R013C00SPH529
None V900R013C00SPC510
.
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None V900R013C00SPC510
When this switch is turned off, the DRD success rate
increases and the system load decreases slightly.V900R013C00SPC520
When the switch is turned on, the RNC sends a CELL
UPDATE CONFIRM message to a UE and starts a timer to
wait for the UE to respond if the UE performs a cell update
in the serving cell. If the UE does not respond before the
timer expires and the UE release cause value is user
inactivity, the value of the counter
RRC.AttConnRelCCCH.UsrInact may increase, and the value
of the counter RRC.AttConnRelCCCH.Unspec may decrease.
V900R013C00SPH529
If this algorithm takes effect and network resource
(admission CEs, RTWP, consumed Iub bandwidth, or
consumed CEs) congestion or insufficient coverage occurs,
unnecessary TTI switching procedures and RB
reconfiguration can be reduced.
V900R013C00SPH529
When this switch is turned on, the number of radio linkreconfiguration times decreases and therefore the NodeB
load decreases.
V900R013C00SPH529
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Turning on this switch reduces the number of hard
handovers and the risk of call drops and saves Uu radio
resources.
V900R013C00SPC550
When this switch is turned on, unnecessary CAPS flow
control over RRC connection setup requests decreases, and
the increase in SPU CPU usage for hot spot cells is
controlled.
V900R013C00SPH529
None V900R013C00SPC550
When this switch is turned on, wideband AMRC can be
adjusted level by level. This improves user experience but
may incur UE compatibility issues.
V900R013C00SPH532
Turning on this switch increases HSUPA cell throughput
when uplink load is light and reduces HSUPA cell
throughput when uplink load is heavy.
V900R013C00SPC550
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