Hua We i Unique Parameters for s

Min interval for TCH HOs Min interval for SD HOs

Range: 160 Range: 160

Unit Second Unit Second

Default: 2 Default: 2

Description: When a new TCH is a Description: When a new SDCCH i

this timer times out will handov when this timer times out will

duration for this timer. This pa is the duration for this timer.

handover due to inaccurate MRs a incorrect handover due to inacc

establishment. The value of this establishment. The value of thi

pre-processed by BTS should be s pre-processed by BTS should be smaller than that when MR is not

pre-processed by BTS. pre-processed by BTS.

Min interval for consecutive HOs Min interval for Emerg. HOs




Description: This parameter is used to prevDescription: When BSC completes or f

result in bad network performance. After BSwill start a timer. BSC will not per

command, it will start a timer. BSC will no before this timer times out. This parameter is the durat

before this timer times out. This parameter timer.

timer.

pre-processed by BTS should be smaller than that when MR is not

Co-BSC/MSC Adj Penalty allowed MS power prediction after HO

Range: Yes, No Range: Yes, No Range: Yes, No

Unit - Unit - Unit -

Default: No Default: Yes Default: No

Description: Indica Description: Indicat Description: Indicates whether MS is a

in the same BSC/MSC including the target the maximum power to access new channe

before this timer times out. This parameter is the duratthat has emergency h parameter is set to Yes, this can r

bad quality. improve service quality.

MR. Pre-process Transfer original MR. Transfer BS/MS power class

Range: Yes, No Range: Yes, No Range: Yes, No

Unit - Unit - Unit -

Default: No Default: No Default: Yes

Description: Indicat Description: Description: In Description: Indicates whether to t

No, it means that MR after BTS pre-processes MR. BSC. If the parameter is set to "No

parameter Transfer o BTS transfer to BSC not only power class to BSC. This will affec

are invalid. If this original MRs. balance measurement.

of Abis interface si Note: In the case of 15:1 fu Note: When MR Pre-process is enable

response time and ne greater than or equal to 2, downlink balance measurement will

determines the place where to perform power contrpower class is set as No. Besi

parameter is set to Yes, then the power controhandovers as PBGT handover, load ha

by BTS. Otherwise, the power control will be perfhandover are abnormal.

Note: 1, MR Pre-process aims to reduce load of BSC MPU. For versions

before BTS01.1130, MR Pre-process will be enabled unless busy

hour traffic exceeds the theoretic value. For versions after

BTS01.1130 (including BTS01.1130), MR Pre-process is advised to

be enabled if no encryption is used, but not if otherwise.

2, For BTS22C, this parameter must be set as No..

3, BTS2X (including BTS23 and BTS22C) supports G-I power

control instead of G-II power control shift-to BTS.

When setting this parameter, it should be noted that whether BTS

supports power control.

4, In 16 K mode, if some TRX configured 2 or more SDCCH, or

enabled dynamic SDCCH, it is recommended to enable MR.

Pre-process, and the frequency of report configured as 1 time per

second.

Cell Asynchronism HO Sent Freq. of preprocessed MR. Multi-MNC HO allowed

Range: Yes, No Range: Do not report, Twice every second Range: Yes/No

Unit None Unit - Unit -

Default: No Default: Twice every second Default: N

Description: The synchronouDescription: Indicates the period of BTS Description: Controlling wh

which a fiber repeater is aNote: In the case of 15:1 function, it i N is selected, the multi-MN

for the two cells. This parto Once every second. performed. The handover pro

handover type of synchronous cells. will be the same as that fo

If you select No, the type of handovers in and between synchronous selected, the multi-handove

cells is synchronous. handover control will be pe

If you select Yes, the type of handovers in and between Multi-MNC HO type.

synchronous cells is asynchronous. For the situation where the

to configure this parameter

Multi-MNC HO type EDGE HO Allowed EDGE HO min time (s) DirectRtryRxLev

Range: Normal handover,Range: Yes, no Range: 360 Range: 063

Unit - Unit: - Unit: s Unit: Level grade

Default: Normal handoveDefault: No Default: 3 Default: 16

Description: When "MultDescription Used to Description Used to determiDescription This par

multi-MNC handover control strategy accordinbegins filter the target ce

Each multi-MNC handover control strategy and its application

occasion are given below.

1, Normal handover

Control strategy: hand over to a cell providing better service

quality (in respect of level, quality, cell class, load and whether

the serving cell shares BSC\MSC).

Application occasion: MS is expected to hand over to a cell

providing better service quality without regard to whether the

destination cell is of the same MNC.

2, Handover to a cell of the same MNC allowed

Control strategy: Only the handover to a cell (including the

serving cell) of the same MNC is allowed.

Application occasion: MS is expected to hand over to a cell of the

same MNC.

3, Handover to a cell of the same MNC first

Control strategy: If the neighboring cell and the serving cell are of

the same MNC, and the receiving level of the neighboring cell is

higher than its Min-DL power on candidate cell, this neighboring

cell will be given priority in handover.

Application occasion: When cells of the same MNC serve

normally, MS is expected to hand over to a cell of the same

MNC. Otherwise (i.e. MS can not detect signals in cells of the

same MNC), MS can hand over to a cell of a different MNC.

4, Handover to a better cell of the same MNC first


the same MNC, and the receiving level of the neighboring cell is

higher than its Inter-layer HO threshold, this neighboring cell will

be given priority in handover.

Application occasion: When cells of the same MNC serve

normally, MS is expected to hand over to a cell of the same

MNC. Otherwise, MS can hand over to a cell of a different MNC.

If otherwise, MS may hand over to a cell of a different MNC.

5, Handover to a better cell of a different MNC first


different MNCs, and the receiving level of the neighboring cell is

higher than its Inter-cell HO threshold, this neighboring cell will

be given priority in handover.

Application occasion: When cells of different MNCs serve

properly, MS is expected to hand over to a cell of different MNC.

Otherwise, MS may hand over to a cell providing better service.

This control strategy is selected when well-covered cells of the

same MNC are in congestion for lack of channels, and cells of

different MNCs is allowed to share the traffic.

6, Handover to a cell of a different MNC first


different MNCs, and the receiving level of the neighboring cell is

higher than its Min-DL power on candidate cell, this neighboring

cell will be given priority in handover.

Application occasion: When cells of different MNCs serve

properly, MS is expected to hand over to a cell of a different

MNC. Otherwise (i.e. MS can not detect signals in the cell of a

different MNC), MS can hand over to a cell of the same MNC.

This control strategy is selected when well-covered cells of the

same MNC are in congestion for lack of channels, and cells of

different MNCs is allowed to share the traffic.

7, Only handover to a cell of a different MNC allowed

Control strategy: MS can only hand over to a cell of a different

MNC from the serving cell. .

Application occasion: MS is expected to hand over to a cell of

different MNCs.

Layer of the cell Inter-layer HO Thrsh. Inter-layer HO hysteresis

Range: 14, which are rRange: 063. (-110 dBm-47 Range: 063

Unit Layer Unit dB Unit dB

Default: 3 Default: 25 Default: 3

Description: The whole Description: The threshold f Description: Indicates the hystere

Micro, and Pico. Each lshould satisfy the following used to avoid inter-layer Ping-Pon

the requirements of varEdge HO RX_LEV Thrsh. + Inte Thrsh. of serving cell = value of

Generally, the Macro laNotes: Make sure that the re HO hysteresis. Actual Inter-layer

1800, and Pico layer fohigher than inter-layer HO t value of Inter-layer HO Thrsh. + Inter-layer HO hysteresis.

layer value, the higherhandover. Otherwise, MS hands over from large load high level cell

(high priority cell) to small load low level cell (low priority cell), and

MS is disconnected as a result.

Penalty on fast moving HO Penalty time on fast moving HO


Unit dB Unit Second


Description: When MS is moving fasDescription: The duration of penalty giv

to other neighboring cells in othefast moving state.

the penalty level value. This parameter is valid only for the duration

of Penalty Time on Fast Moving HO

value of Inter-layer HO Thrsh. + Inter-layer HO hysteresis.

handover. Otherwise, MS hands over from large load high level cell

(high priority cell) to small load low level cell (low priority cell), and

UL expected level at HO access MSC shared or not Min access level offset

Range: 063. (-110 dBm-47 dBm) Range: Yes, No. Range: 063

Unit Grade Unit: Unit dB

Default: 35 Default: set based on aDefault: 0

Description: Indicates the expected upli Description: Whether thDescription: This offset is bas

when MS hands over. The value of this pa Note: 1. In the externadifferent neighboring cells, di

consistent with the "Stable RX_LEV Expec 2. The parameter MSC when the receiving level of a n

the power control algorithm and the "UL bit in the 16bit rule. Candidate Cell" + this offset t

conjunction with the HW II power control handover failure.

See the [Cell Description Table].

Allowed MR number lost Allowed MR number lost Filter length for TCH level

Range: 032 Range: 032 Range: 132

Unit Number of MRs Unit Number of MRs Unit -


Description: Indicates the numDescription: Indicates the numDescription: Indicates the number of

processing. If the number of Mprocessing. If the number of Maveraging calculation. When the filt

value, the last MR received bevalue, the last MR received belarge, the impact of sudden change w

lost MRs will be averaged. Thelost MRs will be averaged. Theresponse speed for this kind of sudd

lost MR. Otherwise, all previolost MR. Otherwise, all previous MRs are discarded, and

calculations are made again whcalculations are made again when new MRs are received.

Note: MRs will lose continuousNote: MRs will lose continuously if the active cell does not serve

well. Once the number of MRs lwell. Once the number of MRs lost continuously is greater than thi

parameter value, all previous parameter value, all previous MRs will be discarded and handover

can not be realized. Thereforecan not be realized. Therefore, it is advised to assign the parame

with a greater value to enablewith a greater value to enable emergency handover.

Filter length for TCH Qual. Filter length for SD level


Unit - Unit -


Description: Indicates the number of Description: Indicates the number o

averaging calculation. When the filt strength averaging calculation. The

large, the impact of sudden change w MS is shorter than the TCH occupati

response speed for this kind of sudd parameter should be less than that

See the following table for reference about the relation between

quality class and BER.

Quality class BER

0 Less than 0. 2%

1 0.2% to 0.4%

2 0.4% to 0.8%

3 0.8% to 1.6%

4 1.6% to 3.2%

5 3.2% to 6.4%

6 6.4% to 12.8%

7 Greater than 12.8%

Filter length for SD Qual Filter length for Ncell RX_LEV


Unit - Unit -


Description: Indicates the number Description: Indicates the number of MRs

averaging calculation. The SDCCH osignal strength averaging calculation. W

than the TCH occupation time, so tto be too large, the impact of sudden change will be reduced, as wel

be less than that of Filter Len as the response speed for this kind of sudden change will be slower.

Filter length for TA Penalty level after HO fail.


Unit - Unit dB


Description: Indicates the Description: After the handover fails

calculation reasons (i.e. internal handover refuse

to be too large, the impact of sudden change will be reduced, as welinterface handover failure message is

as the response speed for this kind of sudden change will be slower.handover; or Um interface handover fai

internal handover), a penalty will be

avoid retry to hand over to this cell.

signal level to be given. This penalty is valid only during the

duration of Penalty time after HO fail.

Penalty level after BQ HO Fail. Penalty time after BQ HO Fail.


Unit dB Unit Second


Description: When the emergency handover tDescription: See the description of Pe

handover fails; in order to avoid handing parameter indicates the duration for pen

Ping-Pong handover, a signal level penalty will be given to this

cell. This parameter is the penalty of signal level to be given. This

penalty is valid only during the duration of Penalty time after BQ

HO Fail.

signal level to be given. This penalty is valid only during the

duration of Penalty time after HO fail.

Penalty time after TA HO Fail Penalty time after TA HO Fail.


Unit dB Unit Second


Description: When the emergency handoveDescription: See the description of Pe

and the emergency handover fails; In orparameter indicates the duration for pen

back to this cell and "Ping-Pong" handover, a signal level penalty

will be given to this cell. This parameter is the penalty of signal

level to be given. This penalty is valid only during the duration of

Penalty time after TA HO Fail

OL-to-UL HO Failure Penalty Time(s) UL-to-OL HO Failure Penalty Time(s)




Description: Once an overlaid-to-underlaid subcDescription: Once an underlaid-to-overlaid subc

service handover from the overlaid subcell to tforbids a call service handover from the underl

is not allowed in the defined penalty time. overlaid subcell in the defined penalty time.

UL-to-OL HO Failure Retry number UL Qual. Thrsh. for interf. HO

Range: 08 Range: 070, corresponding to RQ (quali

Unit Unit -


Description: Upon UL-to-OL subcell handoverDescription: Indicates the uplink receiv

whether the number of handover failure retr emergency handover due to interference.

UL-to-OL HO Failure Retry number. If yes, i or DTX is used, it is recommended to set

subcell handovers. Otherwise, the system wi to 60. When an emergency handover is tri

subcell handover. target cell is other cell. Only when the

Note: If the UL-to-OL HO Failure Retry numbcandidate cell and the Intra-cell HO

restriction on the number of retries upon hintra-cell handover be triggered.

is restriction on the handover failure penalty time.

DL Qual. Thrsh. for interf. HO UL RX_LEV Thrsh. for interf. HO

Range: 070, corresponding to RQ (quali Range: 063. (-110 dBm-47 dBm)

Unit - Unit Grade


Description: Indicates the downlink rece Description: Only when the RX_Quality is v

emergency handover due to interference. certain threshold will the system regard t

or DTX is used, it is recommended to set parameter indicates that the threshold for

to 60. When an emergency handover is tri an emergency handover is triggered, the fi

target cell is other cell. Only when the other cell. Only when there is no other ce

candidate cell and the Intra-cell HO and the Intra-cell HO allowed is Yes

intra-cell handover be triggered. triggered.

Note: The follows should be satisfied:

DL Qual. Thrsh.> DL Qual. Thrsh. for interf. HO and UL Qual.

Thrsh.> UL Qual. Thrsh. for interf. HO

DL RX_LEV Thrsh. for interf. HO Filter parameters A1A8

Range: 063. (-110 dBm-47 dBm) Range: 020

Unit Grade Unit -


Description: Only when the RX_Quality is vDescription: Parameters for leve

certain threshold will the system regard tthe filter parameter B. The actual values of A1 A8 =

parameter indicates the threshold for downThe actual parameter B value = minus value of the B value

emergency handover is triggered, the firstTheir working formula is as follows:

cell. Only when there is no other cell serC1 (nt) = A1 % C(nt) + A2 % C(nt-t) + A3 % C(nt-2t) + + A8 %

the Intra-cell HO allowed is Yes wiC(nt-7t), where:

triggered. C (nt) is the uplink RX_Level of the serving cell in the MR received

at the time of nt.

If C1 (nt)

Filter parameter B MIN TA System flux Thrsh. for load HO Load HO bandwidth

Range: 0255 Range: 0 Range: 0, 811; its corresponding percenRange: 063

Unit - Unit Bit Unit Flow grade Unit dB

Default: 0 Default: Default: 10 Default: 25

Description: Used for th DescriptiDescription: The load handover occurs on Description: This param

the filter parameter B. The actual values of A1 A8 = subcell tcertain threshold. This parameter indica whether the handover is

The actual parameter B value = minus value of the B valuethresholdof this parameter cannot be too great.-U serving cell is within

Their working formula is as follows: might occur when the system load is verHO RX_LEV Thrsh. + Load

C1 (nt) = A1 % C(nt) + A2 % C(nt-t) + A3 % C(nt-2t) + + A8 % allowed.

C (nt) is the uplink RX_Level of the serving cell in the MR received

If C1 (nt)

Load HO step period Load HO step level Edge HO watch time


Unit Second Unit dB Unit: Second


Description: When a cell iDescription: This parame Description: The uplink

sent for all connections sbands. See the descript HO watch time so as to

increase of CPU load and call-drop due to the cong triggered.

target cell. Therefore, these requests will be divided into bands based

on the receiving strength. For example, band1 is within the range

{Edge HO RX_LEV Thrsh., Edge HO RX_LEV Thrsh. + Load HO

step period}; band2 is within the range {Edge HO RX_LEV Thrsh. +

Load HO step period, Edge HO RX_LEV Thrsh. + 2 Load HO step

period}, and so on. Handovers are performed band by band from the

edge to the inner.

Edge HO valid time PBGT watch time PBGT valid time

Range: 116 Range: 116 Range: 1 16

Unit: Second Unit: Second Unit: Second


Description: To trigger Description: The pat Description: The PBG

downlink should constant with PBGT watch timcells the path los

edge handover thresholds handover is triggere PBGT valid time.

indicates this duration.

Intracell TCHF-TCHH handover statistics time

Range: 1 16

Unit: second

Default: 3

Description: According to the P/N rule, system judges wheth

handover based on the RQI of the measurement report. If wit

seconds in N seconds, the RQI is higher than the handover t

from TCHF to TCHH, the handover from TCHF-TCHH is triggered. If

within P seconds in N seconds, the RQI is lower than the handover

threshold from TCHH-TCHF, the handover from TCHH to TCHF is

triggered. Here, the N seconds is the intracell TCHF-TCHH

handover statistics time. P seconds is the intracell TCHF-TCHH

handover observe time.

Intracell TCHF-TCHH handover lasting time

Range: 1 16

Unit: second

Default: 2

Description: Within the intracell TCHF-TCHH handover st

time that the RQI is higher than the handover threshold

TCHH or lower than the handover threshold from TCHH to TCHF.

from TCHF to TCHH, the handover from TCHF-TCHH is triggered. If

within P seconds in N seconds, the RQI is lower than the handover

threshold from TCHH-TCHF, the handover from TCHH to TCHF is

triggered. Here, the N seconds is the intracell TCHF-TCHH

handover statistics time. P seconds is the intracell TCHF-TCHH

Handover threshold from TCHF to TCHH Handover threshold from TCHH to TCHF

Range: 0 39 Range: 0 39

Unit - Unit -


Description: Within a specified time, if the C/I Description: Within a specified time, if the C/I

threshold value, the handover is triggered. threshold value, the handover is triggered.

TCHH or lower than the handover threshold from TCHH to TCHF.

Layer HO watch time Layer HO valid time MS Fast-moving Watch cells

Range: 1 16 Range: 0 16 Range: 1 10

Unit Second Unit Second Unit -


Description: See the desc Description: See the desc Description: The number of cells us

inter-layer handover decisinter-layer handover decisstate. It is not good for the syste

parameter value is too great, but t

inaccurate judgment.

MS Fast-moving Valid cells MS Fast-moving time Thrsh.

Range: 1 10 Range: 0255

Unit - Unit Second


Description: This parameter works Description: If the time of MS spe

When an MS has achieved the value Fast-moving time Thrsh. , the MS will be regarded as moving fast.

cells, and if there are MS Fast-Note: Terms to trigger fast-moving handover:

fast. In this case, fast moving han1, Serving cell is not level-4.

2, Destination cell is level-4.

Interval for consecutive HO Jud.

Range: 1200

Unit Second

Default: 6

Description: See the description of MAX c

Fast-moving time Thrsh. , the MS will be regarded as moving fast.

Note: Terms to trigger fast-moving handover:

Direction for Concentric Cell HO UL to OL HO Allowed

Range: Yes/No

Unit -

Default: Yes

Description: Used to determine whether the handover is performed from

UnderLaid subcell to OverLaid subcell.

Direction for Concentric Cell HO OL to UL HO Allowed

Range: Yes/No

Unit -

Default: Yes

Description: Used to determine whether the handover is performed from Ove

subcell to UnderLaid subcell.

Criterion for Concentric Cell HO Rx_Lev for Concentric Cell HO Allowed

Range: Yes/No

Unit -

Default: Yes

Description: Used to determine whether the receiving level of downlink is taken as

the judgment condition in the Concentric Cell handover judgment.

Criterion for Concentric Cell HO Rx_Qual for Concentric Cell HO Allowed

Range: Yes/No

Unit -

Default: Yes

Description: Used to determine whether the receiving quality of downlink is taken

as the judgment condition in the Concentric Cell handover judgment.

Concentric Cell signal intensity difference RX-LEV Thrsh.

Range: 063 Range: 063. (-11

Unit dB Unit Grade

Default: 5, Default: 35

Description: Used to compensate the intensity difference bDescription: When

subcell and UnderLaid subcell. RX-LEV Thrsh. work

The parameter is invalidation while the "Enhanced ConcentrThrsh, TA Thrsh. a

Allowed" is set as "Yes". boundary between O

Note: Intensity difference between OverLaid subcell and Unvalue of this par

amplification power difference between OverLaid subcell anis recommended tha

combiner insertion loss difference + path loss difference Cell Signal Intens

antennas + path loss difference caused by different frequeThe parameter is invalidation while the "

receiving levels of both OverLaid subcell and UnderLaid suAllowed" is set as "Yes".

on site, and the measurement should be performed on multiple sites if different

antennas are used in OverLaid subcell and UnderLaid subcell.

RX-LEV Hysteresis Receiving Quality Thrsh. TA hysteresis


Unit dB Unit - Unit bit period, 1


Description: When the "Description: When the "Enhanced Description: When

RX-LEV Hysteresis worksthe parameters for determining t hysteresis works t

Hysteresis, RX-qual Thrand OverLaid subcell together wi RX-qual Thrsh and TA Thrsh. This is to determine the boundary

determine the boundary Hysteresis, TA Thrsh, and TA Hys between OverLaid subcell and UnderLaid subcell.

subcell. When the "Enhanced Concentric Ce When the "Enhanced Concentric Cell Allowed" is set as "Yes", One of

The parameter is invalithe parameters for determining t the parameters for determining the coverage of Underlaid subcell and

Allowed" is set as "YesOverLaid subcell together with R OverLaid subcell together with UL to OL HO received level Thrsh.,

The parameter is invalidation while the "received level Thrsh., OL to UL OL to UL HO received level Thrsh., RX-qual Thrsh , TA Thrsh .

Allowed" is set as "Yes". and TA Hysteresis. Note: The above 5 parameters determine the coverage range of OverLaid

on site, and the measurement should be performed on multiple sites if different subcell and UnderLaid subcell for common Concentric Cell.

OverLaid subcell coverage range can be indicated as follows:

Receiving level >= RX-LEV Thrsh. + RX-LEV Hysteresis; TA

Concentric Cell HO watch time Concentric Cell HO valid time




Description: See the description of PDescription: See the description of P

Concentric Cell handover decision. Concentric Cell handover decision.

RX-qual Thrsh and TA Thrsh. This is to determine the boundary

between OverLaid subcell and UnderLaid subcell.

When the "Enhanced Concentric Cell Allowed" is set as "Yes", One of

the parameters for determining the coverage of Underlaid subcell and

OverLaid subcell together with UL to OL HO received level Thrsh.,

OL to UL HO received level Thrsh., RX-qual Thrsh , TA Thrsh .

Note: The above 5 parameters determine the coverage range of OverLaid

subcell and UnderLaid subcell for common Concentric Cell.

OverLaid subcell coverage range can be indicated as follows:

Receiving level >= RX-LEV Thrsh. + RX-LEV Hysteresis; TA

Assign optimum layer Assign-Optimum-Level Thrsh. Assign-Optimum-TA Thrsh

Range: System optimization,Range: 063,(-110 dBm-47 dBm) Range: 0255

Unit - Unit dBm Unit

Default: When "Cell system Default: 35 Default: 63

Underlaid subcell; When "Ce Description: After selection of opti Description: After selection of

GSM900/DCS1800, the default estimated (inserted/ filtered) as pe estimated (inserted/ filtered)

Description: In the Concentthe previous SDCCH MR. OverLaid subc the previous SDCCH MR. OverLaid

1) System optimization modeare allocated as per the comparison are allocated as per the compar

optimum layer for TCH assiglevel of SDCCH and Assign-Optimum- level of SDCCH and Assign-Opt

through the ULs SDCCH between TA and Assign-Optimum-TA T between TA and Assign-Optimum

2) UnderLaid Subcell: Under allocated with OverLaid Subcell only allocated with UnderLaid Subcell only if the receiving level is greater

3) OverLaid Subcell: OverLa than "Assign-Optimum-Level Thrsh", a than Assign-Optimum-Level Thrsh, and TA smaller than

4) No preference: no specifAssign-Optimum-TA Thrsh. Otherwise, Assign-Optimum-TA Thrsh. Otherwise, MS are allocated with

UnderLaid cells to ensure the succes OverLaid cells to ensure the successful assignment.

Note: If SDCCH is on an external cir Note:

threshold +internal/external circle When the Assign-Optimum-TA Thrsh is set as 0, the UnderLaid

balanced uplink/downlink margin + SD subcell cannot be allocated to MS because no TA is smaller than the

margin. If SDCCH is on an internal c TA threshold. In this case, the OverLaid subcell is the assignment

as 25) = edge handover threshold + u optimum layer.

TA pref. Of Imme-Assign Allowed TA Thrsh. Of Imme- Assign pref.

Range: Yes (1), No (0) Range: 0255

Unit - Unit -

Default: No (0) Default: 60 for double timeslots extended

Description: It determinates whether the s0 for others

ACCESS_DELAY in CHANNEL_REQUEST message. Description: While the TA pref. Of Imme-As

If it is set as "No", system prefer the chACCESS_DELAY in CHANNEL REQUEST message is

is set as "No", system prefer the channel Thrsh. Of Imme- Assign pref.", system will

ACCESS_DELAY is less than "TA Thrsh. Of Imoverlaid subcell, otherwise prefer the cha

otherwise prefer the channel in Underlaid subcell.

allocated with UnderLaid Subcell only if the receiving level is greater

than Assign-Optimum-Level Thrsh, and TA smaller than

Assign-Optimum-TA Thrsh. Otherwise, MS are allocated with

OverLaid cells to ensure the successful assignment.

When the Assign-Optimum-TA Thrsh is set as 0, the UnderLaid

subcell cannot be allocated to MS because no TA is smaller than the

TA threshold. In this case, the OverLaid subcell is the assignment

Pref. subcell in HO of intra-BSC Incoming-to-BSC HO optimum layer

Range: System Optimization, OverLaid Subcel Range: UnderLaid subcell, OverLaid subcell,

Unit - Unit -

Default: System Optimization Default: UnderLaid subcell

Description: The incoming HO intra-BSC optiDescription: Generally, the inter-BSC hando

cell is configured as an Concentric cell, t In this case, the UnderLaid subcell can be selected preferably. In

of incoming intra-BSC handover request in B the case of 1800 and 900 that share the same site location, the

1) System Optimization, Add the receiving l inter-BSC handover is hardly triggered at the edge of a cell. The

Concentric cell with the handover request. OverLaid subcell can be selected preferably. If the handover success

compares the receiving level with RX_LEV Th rate is low, it is recommended that the UnderLaid subcell should be

optimum layer, without regard to RX_LEV Hysselected preferably.

2) UnderLaid Subcell: UnderLaid Subcells ar Note: BCCH carrier must be configured as UnderLaid subcell.

3) OverLaid Subcell: OverLaid Subcells are 1) The carrier with SDCCH must be configured as UnderLaid subcell.

4) No priority: Channels are allocated base 2) The handover between OverLaid and UnderLaid subcells will be

without specified instruction. forbidden If both RX-LEV Thrsh. and RX-LEV Hysteresis are 63.

3) The handover between OverLaid and UnderLaid subcells will be

forbidden If both TA Thrsh. and TA Hysteresis are 63.

4) The dual timeslot extended cell adopts Concentric Cell for data

configuration. See the reference for dual timeslot extended cell.

Enhanced Concentric Cell allowed UL to OL Traffic HO Allowed

Range: Yes (1), No (0) Range: Yes (1), No (0)

Unit - Unit -

Default: Yes (0) Default: Yes (0)

Description: It determinates whether the ceDescription: It determines whether t

In this case, the UnderLaid subcell can be selected preferably. In conditions for underlaid to overlaid

the case of 1800 and 900 that share the same site location, the If it is set as "Yes", and the traff

inter-BSC handover is hardly triggered at the edge of a cell. The Thrsh. of underlaid", MS will hand o

OverLaid subcell can be selected preferably. If the handover success If "UL to OL Traffic HO Allowed" is

rate is low, it is recommended that the UnderLaid subcell should be underlaid subcell will not be consid

underlaid to overlaid.

Note: BCCH carrier must be configured as UnderLaid subcell. Note: When "Enhanced Concentric Cell

1) The carrier with SDCCH must be configured as UnderLaid subcell. available.


forbidden If both RX-LEV Thrsh. and RX-LEV Hysteresis are 63.


forbidden If both TA Thrsh. and TA Hysteresis are 63.

4) The dual timeslot extended cell adopts Concentric Cell for data

configuration. See the reference for dual timeslot extended cell.

Traffic Thrsh. of underlaid Underlaid HO Step period


Unit - Unit Second


Description: If "UL to OL Traffic HO Description: If there are some h

underlaid subcell is over "Traffic T overlaid at the same time, syste

over from underlaid to overlaid; oth level. This does not accord with

subcell because the signal quality i be handed over firstly.

If "UL to OL Traffic HO Allowed" is The grade by grade algorithm is

underlaid subcell will not be consid level.

underlaid to overlaid. The parameter is the time for th

Note: When "UL to OL Traffic HO Allo decreases "Underlaid HO Step lev

Note: When "Enhanced Concentric

available.

Underlaid HO Step level Penalty Time of UL to OL HO (s)

Range: 163 Range: 0 255

Unit - Unit Second


Description: In the grade by gr Description: If "Penalty allowed" is set to "Yes" in the [Handover control table],

handover band is extended from when a call is handed over from an underlaid to overlaid subcell, to

with high level firstly. prevent ping-pong handover, the call cannot be handed back to the

The parameter is the step that underlaid subcell in the "Penalty Time of UL to OL HO (S)".

Note: If this parameter is set to 0, there is no penalty for the UL-to-OL

It is used to control the gradehandover.

underlaid to overlaid with "Und Note: When "Enhanced Concentric Cell allowed" is set as "Yes", it is

The "Underlaid HO Step period" available.

band level decreases "Underlaid HO Step level".

Note: When "Enhanced Concentric Cell allowed" is set as "Yes", it is

available.

Description: If "Penalty allowed" is set to "Yes" in the [Handover control table],

when a call is handed over from an underlaid to overlaid subcell, to

prevent ping-pong handover, the call cannot be handed back to the

If this parameter is set to 0, there is no penalty for the UL-to-OL

Note: When "Enhanced Concentric Cell allowed" is set as "Yes", it is

PC algorithm RX_LEV Thrsh. for UL increase RX_LEV Thrsh. for DL increase

Range: HW_1. HW_ Range: 063. (-110 dBm -47 dBm) Range: 063. (-110 dBm -47 dBm)

Unit - Unit Grade Unit Grade

Default: HW_2 Default: 20 Default: 20

Description: Pow Description: Description:

Note: 1, BTS3X s Indicates that when the receiving signaIndicates that when the receiving signa

adopted for BTS2 the set value of this parameter, the po than the set value of this parameter, t

Pre-process must increased. be increased.

control can be implemented at BTS side (MR Pre-process can be enabled).

P1 N1 RX_LEV Thrsh. for UL decrease

Range: 132 Range: 132 Range: 063. (-110 dBm- +47 dBm)

Unit - Unit - Unit Grade


Description: StaDescription: Description: Indicates that when the re

performed duringAmong P1 MRs, if the set value of this parameter, the po

judge whether adRX_LEV Thrsh. DL/UL increase, MS or BTS power output

increase.

RX_LEV Thrsh. for DL decrease P2 N2

Range: 063. (-110 dBm- +47 dBm) Range: 132 Range: 132

Unit Grade Unit - Unit -


Description: Description: Description: A

Indicates that when the receiving downlStatistics of theRX_LEV Thrsh.

the set value of this parameter, the po performed during power output is triggered.

decrease. judge whether decrement of uplink or downlink power is needed.

Qual. Thrsh. for UL increase Qual. Thrsh. for DL increase P3


Unit Grade Unit Grade Unit -


Description: Indicates that when the rDescription: Description:

the set value of this parameter, the pIndicates that when the receiving signStatistics of t

power output is triggered. than the set value of this parameter, performed durin

judge whether decrement of uplink or downlink power is needed. be increased. judge whether i

N3 Qual. Thrsh. for UL decrease Qual. Thrsh. for DL decrease


Unit - Unit Grade Unit Grade


Description: Description: Description:

Among P3 MRs, Indicates that when the receiving signIndicates that when the receiving sign

Qual. Thrsh. than the set value of this parameter, than the set value of this parameter,

output is trigbe decreased. be decrease.

P4 N4 Power Control Adjust Period DL RX_LEV Expected

Range: 132 Range: 132 Range: 110 Range: 063(-110 dBm -

Unit - Unit - Unit: Unit Grade

Default: 18 Default: 15 Default: 10 Default: 35

Description: Description: Description Normal cell power contro Description:

Statistics of tAmong P4 MRs, if the receiving quality in N4 MRs is It defines the signal st

performed durinQual. Thrsh. for DL/UL decrease, decrement of MSstable state. Expected s

judge whether doutput is triggered. edge handover threshold

bring Ping-Pong handover

Filter Length for DL RX_LEV DL RX_LEV Compensation DL Qual. Expected


Unit - Unit % Unit Grade


Description: Description: Description: The expect

Indicate the number of MRs in which The power adjustment will chanshowing the power adjus

of downlink is taken in a stable sta between the actual receiving level and the expected r

The purpose of setting this paramete The downlink compensation factor acts as the weight c

mutation factors so that analysis of such adjustment. When the difference is fixed, the gr

adjustment is not too partial. When compensation factor, the greater the BTS power adjust

the influence due to mutation will b Note: The sum of downlink path loss compensation fact

adjustment is not timely. If the win compensation factor must be 100.

adjustment will not be accurate enough.

Filter Length for DL Qual. DL Qual. Compensation BTS Min Tx Power


Unit - Unit % Unit dBm


Description: Description: Description: Indicatin

Indicating the number of MRs in whiThe power adjustment will ch station. No matter what the original

of downlink is taken in a stable stbetween the actual downlink levels it can be down-tuned, the transmitting power of the base

The purpose of setting this parametquality. The downlink compen station cannot be lower than this value.

mutation factors. When the filterinco-efficient of such adjustment. When the difference is fixed, the

due to mutation will be weakened, tgreater the compensation factor, the greater the BTS power

is not timely; if the window is tooadjustment.

not be accurate enough. Note: The sum of downlink path loss compensation factor and downlink quality

compensation factor must be 100.

MAX PC Step PC Adj. Range PC Interval Initial RX_LEV Expected

Range: 116 Range: 116. CorrRange: 116 Range: 063, (-110 dBm -47

Unit grade, 2 d Unit grade, every Unit SACCH peri Unit Grade

Default: 8 Default: 16 Default: 4 Default: 30

Description: DeDescription: IndicDescription: ThDescription: Expectant signal s

station. No matter what the original be adjusted Normally, its value should be

levels it can be down-tuned, the transmitting power of the base Expected.

station cannot be lower than this value.

co-efficient of such adjustment. When the difference is fixed, the

greater the compensation factor, the greater the BTS power

Note: The sum of downlink path loss compensation factor and downlink quality

Filter Length for Initial RX_LEV Stable RX_LEV Expected

Range: 131 Range: 063, (-110 dBm- +47

Unit - Unit Grade


Description: Indicates the number of MRs toDescription: The signal streng

judgment of the uplink signal strength to a DL RX_LEV expected > Edge HO U

change at PC initial stage. If the filterin will cause Ping-Pong handover

impact of sudden change will be weakened but the BTS power

adjustment is not timely. If the window is too short, BTS power

adjustment will be inaccurate. At the initial stage, the power

adjustment of MS depends only on the receiving signal level but

receiving signal quality. To decrease MS transmitting power as soon

as possible, normally the value should be less than the value of

Filter length for stable RX_LEV

Filter Length for Stable RX_LEV UL RX_LEV Compensation UL Qual. Expected


Unit - Unit % Unit grade

Default: 5 Default: 80, Indicates when thDefault: 1

Description: Indicates the number of MRs tideal level is 5 dB , power isDescription: The signal

judgment of the uplink signal strength to Description: The power adjustment range will change a

change in stable stage. If the filtering wbetween the actual receiving level and the expected

of sudden change will be weakened but the RX_LEV compensation acts as the weighting coefficie

not timely. If the window is too short, MSdifference. When the difference is fixed, the greater

inaccurate. At the stable stage, the MS pocompensating factor, the greater the MS power adjustm

the receiving signal level and quality. PoNote: The sum of downlink path loss compensation factor and downlink quality

state is started once Filter length for compensation factor must be 100.

matter whether power control at initial stage is performed.

Filter Length for Qual. UL Qual. Compensation Power Increment after HO Fail.


Unit - Unit % Unit 2 dB

Default: 6 Default: 20 ( when the diffe Default: 2

Description: Indicates the numbexpected quality is 1 class, Description: Indicates the power level t

judgment of the uplink signal q 1*20%*10) returning to the original channel after

change in stable stage. If the Description: The power adjustment range will change along with the di

of sudden change will be weakenbetween the actual receiving quality and the expected quality. The

not timely. If the window is toUL Qual. compensation acts as the weighting coefficient of such

inaccurate. difference. When the difference is fixed, the greater the

Note: The sum of downlink path loss compensation factor and downlink quality compensating factor, the greater the MS power adjustment.

Note: The sum of downlink path loss compensation factor and downlink

compensation factor must be 100.

MAX PC Step PC Interval Filter Length for UL RX_LEV


Unit 2 dB Unit SACCH peri Unit -


Description: InDescription: ThDescription: Indicates the number of

be performed. commands. judgment of the uplink signal streng

Note 1) In HW_1 PC algorithm, Note: For versions before G3BTS24.20000.06.111/G3BTS32.30000.04.1130

(UL/DL stable RX_LEV expected /G3BTS34.30000.07.0301/G3BTS36.30000.02.0820, this parameter must be set

strength) * UL/DL RX_LEV compe 520 when BTS is configured with MR pre-processing and G-II power contro

quality UL/DL Qual. expectedOtherwise, error will occur in TRX configuration flow. For versions menti

final adjustment power level s and the subsequent versions, this parameter can be set as 120.

step.

2) Before determine a power level to be adjusted, the error

tolerance table should be first searched according the currently

transmitting power level. The power level to be adjusted should not

exceed the error tolerance shown in the following table.

1800M:

Level 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Error

tolerance 2 2 2 2 2 2 2 2 2 3 3 3 3 3 4 4 4 2 2 2

900M:

Level 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Error

tolerance 2 2 2 4 4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 6

Filter Length for DL RX_LEV Filter Length for UL Qual.


Unit Unit -


Description: Indicates the number of Description: Indicates the number o

judgment of the downlink signal stre judgment of the uplink signal quali

Note: For versions before G3BTS24.20000.06.111/G3BTS32.30000.04.1130 Note: For versions before G3BTS24.2

/G3BTS34.30000.07.0301/G3BTS36.30000.02.0820, this parameter must be set /G3BTS34.30000.07.0301/G3BTS36.3000

520 when BTS is configured with MR pre-processing and G-II power contro520 when BTS is configured with M

Otherwise, error will occur in TRX configuration flow. For versions mentiOtherwise, error will occur in TRX

and the subsequent versions, this parameter can be set as 120. and the subsequent versions, this

transmitting power level. The power level to be adjusted should not

Filter Length for DL Qual. MR. Compensation Allowed UL MR. Number Predicted

Range: 120 Range: Yes, No Range: 03

Unit - Unit - Unit number of MRs

Default: 5 Default: Yes Default: 2

Description: Indicates the number oDescription: During the power co Description: The number of upli

judgment of the downlink signal quathe impact of different transmit the future receiving signal str

Note: For versions before G3BTS24.2signal strength. When the value counteract the impact of the po

/G3BTS34.30000.07.0301/G3BTS36.3000currently received MR will be placed into the MR compensation

520 when BTS is configured with Mqueue. Then, according to the recorded information about MS and

Otherwise, error will occur in TRX BTS power changes, the receiving signal strength of the MR is

and the subsequent versions, this compensated.

DL MR. Number Predicted MAX Down Adj. value Qual. zone 0


Unit number of MRs Unit dB


Description: The number of downDescription: The maximum downward power adj

algorithm, the future receiving In HW_II PC algorithm, the receiving signal

to counteract the impact of thethree quality zones (0, 12, 3), and different maximum downward

power adjustment steps are set for each zone. In the power

adjustment according to the receiving signal strength, consideration

should be given to the maximum step adjustment for each zone.

MAX Down Adj. value Qual. zone 1 MAX Down Adj. value Qual. zone 2


Unit dB Unit dB


Description: The maximum downward power adjDescription: The maximum downward power ad

1 or 2.

three quality zones (0, 12, 3), and different maximum downward

power adjustment steps are set for each zone. In the power

adjustment according to the receiving signal strength, consideration

should be given to the maximum step adjustment for each zone.

MAX Down Adj. PC Value by Qual. MAX Up Adj. PC Value by RX_LEV


Unit dB Unit dB


Description: The adjustment step allowed fDescription: It is used to set the maxim

receiving signal quality. control by receive level.

Note In HW_II PC algorithm, the power adjuNote:

receiving signal strength and the receivin1) BTS3X macro cellular: G3BTS32.30000.0

power control adjustment direction and stesupport the function that the upward adj

combining the two, as shown as follow tablupward adjustment step is processed resp

receive quality power control. Other ver

receive quality power control and the up

the downward adjustment step is processe

adjustment step.

2) BTS3002C: G3BTS36.30000.03.0820and la

the function that the upward adjustment

adjustment step is processed respectivel

quality power control. Other versions do

quality power control and the upward adj

downward adjustment step is processed as

adjustment step.

3) Other type sites: all versions do not

upward adjustment steps and the upward a

processed respectively; do not support b

control.

MAX Up Adj. PC Value by Qual. BTS PC class UL Qual. Bad TrigThrsh

Range: 032 Range: 116; corRange: 07

Unit dB Unit Grade Unit -


Description: It is used to set the maxiDescription: The Description: In uplink power c

control by receive quality. Note: For versio less than this start threshold

Note: 07.0301/ BTS3002 strength of uplink" will be ad

1) BTS3X macro cellular: G3BTS32.30000.when BTS is conf when the receiving quality of

support the function that the upward adcontrol. Otherwi configuration. Thus, the expected level in uplink power cont

upward adjustment step is processed resversions mention be increased furthermore.

receive quality power control. Other veparameter can be set as 116.

receive quality power control and the upward adjustment step and

the downward adjustment step is processed as the downward

adjustment step.

2) BTS3002C: G3BTS36.30000.03.0820and later versionsupport the

function that the upward adjustment step and the upward adjustment

step is processed respectively; support bad receive quality power

control. Other versions do not support bad receive quality power

control and the upward adjustment step and the downward

adjustment step is processed as the downward adjustment step.

3) Other type sites: all versions do not support the function that the

upward adjustment step and the upward adjustment step is

processed respectively; do not support bad receive quality power

control.

PC adjustment of

receiving signal

strength

PC adjustment of

receiving signal

quality

Power control adjustment

combining the receiving signal

strength and quality

AdjStep_Lev AdjStep_Qul maxAdjStep_Lev,AdjStep_Qul)

AdjStep_Lev AdjStep_Qul No action

AdjStep_Lev No action AdjStep_Lev

AdjStep_Lev AdjStep_Qul AdjStep_Lev

AdjStep_Lev AdjStep_Qul max(AdjStep_Lev,AdjStep_Qul)


No action AdjStep_Qul AdjStep_Qul


No action No action No action

UL Qual. Bad UpLEVDiff DL Qual. Bad TrigThrsh DL Qual. Bad UpLEVDiff

Range 063 Range 07 Range 063

Unit dB Unit - Unit dB

Default 0 Default 5 Default 0

Description In uplink power coDescription In downlink power Description In downlink power

start threshold when the receinot less than this start thresthan "start threshold when the

actual "upper threshold of sigsignal strength of downlink" wthe actual "upper threshold of signal strength of downlink" will be

with this offset value. offset of level when the receiadded with this offset value.

configuration. Thus, the expected level in uplink power contdata configuration. Thus, the expected level in downlink power

control can be increased furthermore.

Period for Adjusting Power Control Expected Stable Downlink signal strength


Unit SACCH period (480ms) Unit Level grade


Description: The minimum time interval betweenNote

commands Definition of expected signal strength in stable MS. E

the actual "upper threshold of signal strength of downlink" will be downlink signal strength > downlink edge handover thre

(handover parameter), otherwise the power control can

data configuration. Thus, the expected level in downlink power problem of ping pang handover.

Downlink Signal Strength Filter Length

Range: 131

Unit -

Default: 5

Description: Under stable status, before adjusting

measurement report that compute average downlink si

strength. The purpose of this parameter is to elimi

from burst factors, so that the decision of whether

control can be supported. Excessive filter window l

weaken the influence of burst, but may result in de

control adjustment; insufficient filter window leng

burst factors, can not reflect the actual condition

inaccurate power control adjustment.

Downlink Path Loss Compensation Factors Expected Downlink Quality


Unit % Unit Grade


Description: The adjustment amplitude varies between Description: In stable status, exp

between actual level received by MS and expected lev the direction of power control adj

compensation factor is the weight coefficient of such difference.

That means the larger the compensation factor, the larger the

power need to be adjusted in BTS.

Note

The sum of the two parameters Downlink Path Loss Compensation

Factor and Downlink Path Quality Compensation Factor must be 100

Downlink Quality Filter Length Downlink Quality Compensation Factor


Unit - Unit %


Description: Under stable status, before Description: The adjustment amplitude varies bet

measurement reports that compute average between actual downlink quality and expected dow

The purpose of this parameter is to elim Downlink quality compensation factor is the weig

factors, so that the decision of whether such difference. If the difference is consistent, the larger the

be supported. Excessive filter window le compensation factor, the larger the power need to be adjusted in

influence of burst, but may result in de BTS.

adjustment; insufficient filter window l Note

power control adjustment. The sum of the two parameters Downlink Path Loss Compensation


Minimum Transmit Power of BTS

Range: 010

Unit dBm

Default: 4

Description: The acceptable minimum tra

power cannot be less than the value despite of the initial power and

allowed decrease grades of BTS.

such difference. If the difference is consistent, the larger the

compensation factor, the larger the power need to be adjusted in

The sum of the two parameters Downlink Path Loss Compensation


Maximum Step Length in Adjusting Power Control Grades of BTS Power Control


Unit Grade. 2dB per grade Unit Grade. 2dB per grade


Description: The maximum step length in adjusting BTS power. Description: Maximum value in adjust

power cannot be less than the value despite of the initial power and

Registration Period Expected Initial Signal Strength


Unit SACCH period (480ms) Unit Level Grade


Description: The minimum tDescription: Expected signal receiving stre

commands. power control. Generally we should adopt va

the expected stable signal strength.

Filter Length in Initial Adjustment Stage

Range: 131

Unit -

Default: 2

Description: In the initial stage of power control, bef

the number of measurement reports that compute average

signal strength. The purpose of this parameter is to el

influence from burst factors, so that the decision of w

the power control can be supported. Excessive filter window length

can weaken the influence of burst, but may result in delayed MS

power control adjustment; insufficient filter window length leads to

inaccurate power control adjustment. In the initial stage, the

adjustment of MS power is merely subject to the level rather than the

quality of signal reception. To decrease the MS transmit power as

soon as possible, we generally adopts value that is less than the

length of filter in stable status.

Expected Signal Strength in Stable Status

Range: 163

Unit Level Grade

Default: 30

Description: Expected signal receiving strength in stab

signal strength > uplink edge handover threshold (hando

parameter), otherwise the power control can cause the p

ping pang handover.

the power control can be supported. Excessive filter window length

can weaken the influence of burst, but may result in delayed MS

power control adjustment; insufficient filter window length leads to

inaccurate power control adjustment. In the initial stage, the

adjustment of MS power is merely subject to the level rather than the

quality of signal reception. To decrease the MS transmit power as

soon as possible, we generally adopts value that is less than the

Signal Filter Length in Stable Status Uplink Path Loss Compensation Factor


Unit - Unit %

Default: 5 Default: 80 (the difference between current leve

Description: Under stable stage, before adjusting the power by 4dB, that is, 5*80/100)

measurement reports that compute average uplink siDescription: The power adjustment amplitude varies between different difference

The purpose of this parameter is to eliminate inflbetween actual uplink receiving level and expected uplink receiving

factors, so that the decision of whether adjust thlevel. Uplink compensation factor is the weight coefficient of such

be supported. Excessive filter window length can wdifference. If such difference is consistent, the larger the

influence of burst, but may result in delayed MS pcompensation factor, the larger the power need to be adjusted in MS.

adjustment; insufficient filter window length leadNote The sum of the two parameters Uplink Path Loss Compensation

power control adjustment. In the stable stage, theFactor and Uplink Path Quality Compensation Factor must be 100.

power is subject to both level and quality of signal reception. When

expected stable filter window is full, initiate the power adjustment in

stable status, no matter whether the initialization adjustment is

implemented.

Expected Uplink Quality Quality Filter Length in Stable Stage


Unit Grade Unit -


Description: Expected signal re Description: Under stable status, before adjusting

Description: The power adjustment amplitude varies between different difference measurement reports that compute average uplink si

between actual uplink receiving level and expected uplink receiving purpose of this parameter is to eliminate influenc

level. Uplink compensation factor is the weight coefficient of such so that the decision of whether adjust the power c

difference. If such difference is consistent, the larger the supported. Excessive filter window length can weak

compensation factor, the larger the power need to be adjusted in MS. of burst, but may result in delayed MS power contr

Note The sum of the two parameters Uplink Path Loss Compensation insufficient filter window length leads to inaccur

Factor and Uplink Path Quality Compensation Factor must be 100. adjustment.

Uplink Quality Compensation Factor

Range: 1100

Unit %

Default: 20 (the current quality is 1 grade lo

power by 2dB, that is (1*20/100) *10)

Description: The power adjustment amplitude va

between actual uplink quality and expected uplink quality. Uplink

compensation factor is the weight coefficient of such difference. If

such difference is consistent, the larger the compensation factor, the

larger the power need to be adjusted in MS.

Note The sum of the two parameters Uplink Path Loss Compensation

Factor and Uplink Path Quality Compensation Factor must be 100.

Increase power range after handover fails

Range: 010

Unit Grade. 2dB per grade

Default: 2

Description: Enlarged MS power when returning the origi

handover fails, to avoid call drop.

between actual uplink quality and expected uplink quality. Uplink

compensation factor is the weight coefficient of such difference. If

such difference is consistent, the larger the compensation factor, the

Note The sum of the two parameters Uplink Path Loss Compensation

Factor and Uplink Path Quality Compensation Factor must be 100.

Maximum Step Length in Power Control Power Control Adjustment Period


Unit Grade. 2dB per grade Unit SACCH period (480ms)


Description: The maximum dynamic adjusted step l Description: The minimum time interval bet

commands.

Uplink Level Filter Length Downlink Level Filter Length


Unit - Unit -


Description: Before adjusting the MDescription: Before adjusting the BTS

that compute average uplink signal that compute average downlink signal s

Note Note

In G3BTS24.20000.06.1111 or earlierG3BTS24.20000.06.1111 or earlier versi

G3BTS32.30000.04.1130 or earlier veG3BTS32.30000.04.1130 or earlier versi



measurement reports in BTS configurmeasurement reports in BTS configurati

parameter is 520. Parameter not iparameter is 520. Parameter not in t

configuration errors. Above listed configuration errors. Above listed BTS

can support the parameter from 1 tocan support the parameter from 1 to 20

Uplink Quality Filter Length Downlink Quality Filter Length


Unit - Unit -


Description: Before adjusting the MS pDescription: Before adjusting the MS pow

that compute average uplink signal quathat compute average uplink signal quali

Note Note

G3BTS24.20000.06.1111 or earlier versiG3BTS24.20000.06.1111 or earlier version



G3BTS36.30000.02.0820 or earlier versiG3BTS36.30000.02.0820 or earlier version, when pre-processing

measurement reports in BTS configuratimeasurement reports in BTS configuration of Huawei II, the range of

parameter is 520. Parameter not in tparameter is 520. Parameter not in this range may cause TRX

configuration errors. Above listed BTSconfiguration errors. Above listed BTS versions or higher versions

can support the parameter from 1 to 20can support the parameter from 1 to 20.

Switch of Measurement Report Compensation

Range: Yes, No

Unit -

Default: Yes

Description: After the switch is on, the received measu

the measurement report compensation queue. Then record

information about variation of transmit power according

values of MS and BTS in the reports. After interpolatio

measurement reports, compensate the receiving level of

measurement reports according to above recorded information.

G3BTS36.30000.02.0820 or earlier version, when pre-processing

measurement reports in BTS configuration of Huawei II, the range of

parameter is 520. Parameter not in this range may cause TRX

configuration errors. Above listed BTS versions or higher versions

Uplink Prediction Measurement Reports

Range: 03

Unit The number of measurement reports

Default: 2

Description: In the Huawei II power control algor

control is not subject to the average filter value

measurement reports. The method is add prediction

to offset the delay of power adjustment. This para

number of uplink measurement reports that performs

measurement reports according to above recorded information.

Downlink Prediction Measurement Reports

Range: 0 3Unit The number of measurement reports

Default: 2

Description: In the Huawei II power control algorith

control is not subject to the average filter value i

measurement reports. The method is add prediction fu

to offset the delay of power adjustment. This parame

number of downlink measurement reports that performs

prediction.

Uplink Signal Strength Upper Threshold

Range: 0 63 (mapping -110 -47dBm) Unit Level Grade

Default: 35

Description: In calculation of power control step,

upper threshold and lower threshold. No need to adj

falls between the upper threshold and lower one. On

power control when a signal is out of this range. T

defines the upper threshold of uplink signal in pow

signal level exceeds the upper threshold, the power

increased by: (=(Upper Threshold + Lower Threshold

The actual adjusting step length is decided by both

increment and the maximum adjusting step length all

quality band.

Uplink Signal Strength Lower Threshold

Range: 0 63 (mapping -110 -47dBm) Unit Level Grade

Default: 25

Description: In calculation of power control step,

upper threshold and lower threshold. No need to adj

falls between the upper threshold and lower one. On

power control when a signal is out of this range. T

defines the lower threshold of uplink signal in pow

signal level is less than the lower threshold, the

decreased by: (=Received Level (Upper Threshold + The actual

adjusting step length is decided by both the decrem

maximum adjusting step length allowed in the qualit

Downlink Signal Strength Upper Threshold

Range: 0 63 (mapping -110 -47dBm) Unit Level grade

Default: 40

Description: In calculation of power control step, the

upper threshold and lower threshold. No need to adjust

falls between the upper threshold and lower one. Only

power control when a signal is out of this range. This

defines the upper threshold of downlink signal in powe

signal level exceeds the upper threshold, the power sh

increased by: (=(Upper Threshold + Lower Threshold)/2

The actual adjusting step length is decided by both th

increment and the maximum adjusting step length allowe

quality band.

Downlink Signal Strength Lower Threshold

Range: 0 63 (mapping -110 -47dBm) Unit Level grade

Default: 30

Description: In calculation of power control step, the

upper threshold and lower threshold. No need to adjust

falls between the upper threshold and lower one. Only

power control when a signal is out of this range. This

defines the lower threshold of downlink signal in powe

signal level is less than the lower threshold, the pow

decreased by: (=Received Level (Upper Threshold + LowThe actual

adjusting step length is decided by both the decrement

maximum adjusting step length allowed in the quality band.

Maximum Step Length of Downward Power Control in Quality Band 0 According to Level

Range: 0 30Unit dB

Default: 4

Description: In Huawei II power control algorithm, the quality is split into three

bands according to the quality of signal receiving (RQ value): 0, 1 2,3. When adjusting power according to level, the maximum step

length of downward power adjustment varies between different

quality bands. If the maximum step length allowed in downward

adjustment is insufficient, the algorithm cannot achieve quick power

control; if such a step length is too long, the validity of power control

may be reduced. This parameter defines the maximum step length

that can be adjusted in downward power control when RQ value is 0.

maximum adjusting step length allowed in the quality band.


Range: 0 30Unit dB

Default: 4

Description: In the power adjustment according to the level, this parameter

defines the maximum step length that can be adjusted in downward

power control when RQ value is 1 or 2 (falls into the quality band (0,1)).


Range: 0 30Unit dB

Default: 4

Description: In the power adjustment according to the level, this parameter

defines the maximum step length that can be adjusted in downward

power control when quality RQ value3.

Maximum Step Length of Downward Power Control According to the Quality

Range: 0 4Unit dB

Default: 4

Description: Allowed maximum step length that can be adjusted in downward

power control according to the quality of receiving signals.

Note

G3BTS24.20000.06.1111 or earlier version,



G3BTS36.30000.02.0820 or earlier version, when pre-processing

measurement reports in BTS configuration of Huawei II, the range of

parameter is 2 4. Parameter not in this range may cause TRXconfiguration errors. Above listed BTS versions or higher versions

can support the parameter from 0 to 4.

Maximum Step Length of Upward Power Control According to the Level

Range: 0 32Unit dB

Default: 16

Description: Allowed maximum step length that can be adjusted in upward power

control according to the level.

Note

(1) BTS3X macro cell: G3BTS32.30000.04.1130 and higher version

allow to separately process upward step length and downward step

length and support power control for poor quality; the earlier version

does not provide such functions.

(2) BTS3002C: G3BTS36.30000.03.0820 and higher version allow to

separately process upward step length and downward step length

and support power control for poor quality; the earlier version does

not provide such functions.

(3) Other sites: All version neither allows to separately process

upward step length and downward step length, nor supports power

control for poor quality.

Maximum Step Length of Upward Power Control According to the Quality

Range: 0 32Unit dB

Default: 8

Description: Allowed maximum step length that can be adjusted in upward power

control according to the quality of receiving signals.

Note

(1) BTS3X macro cell: G3BTS32.30000.04.1130 and higher version

allow to separately process upward step length and downward step

length and support power control for poor quality; the earlier version

does not provide such functions.

(2) BTS3002C: G3BTS36.30000.03.0820 and higher version allow to

separately process upward step length and downward step length

and support power control for poor quality; the earlier version does

not provide such functions.

(3) Other sites: All version neither allows to separately process

upward step length and downward step length, nor supports power

control for poor quality.

In Huawei II power control algorithm, the amplitude of power adjustment can be

computed in aspect of both level and quality of receiving signals, then the two results

are integrated to bring about the direction and step length of adjusting power control.

Power control

adjustment of

receiving Level

Power control

adjustment of

receiving quality

Power control adjustment of

Integrated level and quality


AdjStep_Lev AdjStep_Qul No action


AdjStep_Lev AdjStep_Qul AdjStep_Lev





No action No action No action

BTS Power Control Grade Uplink Quality Initiation Lower Threshold

Range: 1 16, 0dB 30dB Range: 0 7Unit Grade Unit Quality Grade


Description: Maximum of BTS dynDescription: In uplink power control, when the value of

Note larger than the initiation threshold, the actual Upli

BTS24 06.1111 or earlier versio Strength Upper Threshold will add the Uplink Poor Q

BTS3001C 07.0301 or earlier ver Deviation to the Level Upper Threshold. This action c

version, when pre-processing meincrease the expected level value of uplink power control.

configuration of Huawei II, the range of parameter is 2 16.Parameter not in this range may cause TRX configuration errors.

Above listed BTS versions or higher versions can support the

parameter from 1 to 16.

Uplink Poor Quality Deviation to the Level Upper Threshold

Range: 0 63Unit dB

Default: 0

Description: In uplink power control, when the value of uplink receiving qual

no less than that of the Uplink Quality Initiation Lower Threshold,

the actual Uplink Signal Strength Upper Threshold will add

the Uplink Poor Quality Deviation to the Level Upper Threshold.

increase the expected level value of uplink power control.

Downlink Quality Initiation Lower Threshold

Range: 0 7Unit Quality Grade

Default: 5

Description: In downlink power control, when the value of

quality is larger than the initiation threshold, the actu

Signal Strength Upper Threshold will add the Downlink

Quality Deviation to the Level Upper Threshold. This act

further increase the expected level value of uplink power

Uplink Poor Quality Deviation to the Level Upper Threshold

Range: 0 63Unit dB

Default: 0

Note

In downlink power control, when the value of downlink receiving

quality is no less than that of the Downlink Quality Initiation Lower

Threshold, the actual Downlink Signal Strength Upper Threshold

will add the Downlink Poor Quality Deviation to the Level Upper

Threshold.

CH Allocation Algorithm Idle SD Thrsh.N1 Cell SD Maximum

Range: Huawei I algorithms and Range: 0 63 Range: 0255Unit - Unit - Unit -

Default: Huawei II algorithms Default: 2 Default: 80

Description: Description: Description: The max

The channel allocation algorithWhen the number of idlNote: 1) The process

1) HW_I algorithm uses the sequ the Idle SD Thrsh.,timer Count is set for each cell. Every time a TCH is conv

channels. convert them to SDCCH an SDCCH, the Count is set to ResTime. Count is adjusted e

2) HW_II algorithm allocates chNote: seconds. If the current idle SDCCH channels > 8 +Idle TCH

Note HW_II algorithm is recommeThe conditions to Initthen: the Count minus 3. If the current idle SDCCH channel

above. 1)The number of idle SIdle TCH Thrsh., then plus 12 to Count, but the Count must

SD Thrsh". exceed ResTime. If the current idle SDCCH channels = 8 + I

2)The number of currenTCH Thrsh., then Count remains unchanged. After the adjust

or more than the numbeCount 0, then one TCH channel will be recovered.

3)The number of curren2) Due to TRX hardware processing capability restriction,

equal to "Cell SD maxitime slots can be configured as SDCCH channels for each TR

To initiate the TCH-to-SDCCH conversion, if the selected T

occupied, the connection will be handed over to other idle

channel in this cell. During dynamic SDCCH channel allocat

each time only one TCH is converted into SDCCH. So does th

SDCCH-to-TCH conversion.

3) During the TCH-to-SDCCH conversion, TCH channels on TRX

where BCCH is located should not be selected.

TCH Minimum Recovery Time(s) Idle TCH Thrsh. N1


Unit second Unit -


Description: The minimum interval for Description:

conversion. If the parameter "apply

timer Count is set for each cell. Every time a TCH is conv dynamic PDCHs are used as PDCHs, BSC can not apply to PCU for

an SDCCH, the Count is set to ResTime. Count is adjusted e any TCH.

seconds. If the current idle SDCCH channels > 8 +Idle TCH If the parameter "apply TCH decision period T(m)" is not 0, the tw

then: the Count minus 3. If the current idle SDCCH channel parameters determine when dynamic PDCH converts to TCH and

Idle TCH Thrsh., then plus 12 to Count, but the Count must when TCH converts dynamic PDCH. There is a count in every cell

exceed ResTime. If the current idle SDCCH channels = 8 + I and the range of count is from -T to T. The initial value of the c

TCH Thrsh., then Count remains unchanged. After the adjust is 0. The count adjust every minute. If idle TCH channels are more

Count 0, then one TCH channel will be recovered. than N1, the count add 1 and the maximum of the count is T. If idle

2) Due to TRX hardware processing capability restriction, TCH channels are no more than N1, the count reduce 1and the

time slots can be configured as SDCCH channels for each TR minimum of the count is -T. When the adjustive count value is less

To initiate the TCH-to-SDCCH conversion, if the selected T than T/2 and there is at least one dynamic PDCH which is used

occupied, the connection will be handed over to other idle PDCH, the BSC will apply to PCU for TCH.

channel in this cell. During dynamic SDCCH channel allocat On the other hand, after PCU applies to BSC for dynamic PDCH,

each time only one TCH is converted into SDCCH. So does th BSC must judge if the count value no less than T/2.Only when the

SDCCH-to-TCH conversion. count value is no less than T/2, it is allowed for the BSC to assign

3) During the TCH-to-SDCCH conversion, TCH channels on TRX dynamic PDCH to PCU.

where BCCH is located should not be selected.

Apply- TCH Decision Period T(m) TCH Traffic Thrsh(%)

Range: 065535 Range: 0-100

Unit minute Unit -


Description: The duration to judge whetherDescription:

performed. During the allocation of th

dynamic PDCHs are used as PDCHs, BSC can not apply to PCU for current channel reaches or

is allocated with the half

If the parameter "apply TCH decision period T(m)" is not 0, the tw allocate full rate channel

parameters determine when dynamic PDCH converts to TCH and Note:

when TCH converts dynamic PDCH. There is a count in every cell Cell channel occupation rat

and the range of count is from -T to T. The initial value of the c TCH/H/2)/ (Number of availa

is 0. The count adjust every minute. If idle TCH channels are more TCH/H/2)

than N1, the count add 1 and the maximum of the count is T. If idle

TCH channels are no more than N1, the count reduce 1and the

minimum of the count is -T. When the adjustive count value is less

than T/2 and there is at least one dynamic PDCH which is used

PDCH, the BSC will apply to PCU for TCH.

On the other hand, after PCU applies to BSC for dynamic PDCH,

BSC must judge if the count value no less than T/2.Only when the

count value is no less than T/2, it is allowed for the BSC to assign

Enhanced Chan. Convert Enable Resources with priority reserved

Range: Yes/No Range: Yes/No

Unit - Unit -

Default: Yes Default: Yes

Description: Description: When this function is enabled,

This parameter determines whether to alusers with priority are used.

to combine the call on the two SINGLE tNote: The TCHs reserved for the users with

timeslot to covert the call into TCHF wIf the parameter is configured No, the f

allocation. not allowed to be configured:

Note: Defining the highest priority ;

Couple: when one timeslot is divided in The number of TCHs reserved.

TCHHs are idle. The two TCHH are called Couple.

Single: when one timeslot is divided into two TCHHs, and one

TCHH is busy and the other is idle. The idle one is called Single.

Defining the highest priority The number of channels reserved

Range: 114 Range: 0-N

Unit - Unit: -


Description: Description: The number of the full rate T

Distinguish the user by this parameter. N is the number of full rate TCHs of the current cell.

user is not higher than this value, the Note: Make sure that the number of full rate TCHs reserved is no more

priority. Otherwise, the user is of lowthan that configured in the cell.

Apply TCHH priority for AMR AMR TCH Traffic Thrsh.(%)

Range: Selected, Not Selected Range: 0-99

Unit: - Unit: -

Default: Selected Default: 40

Description: Apply TCHH priority for Description:

N is the number of full rate TCHs of the current cell. When the current channel occupatio

Note: Make sure that the number of full rate TCHs reserved is no more the TCHHs are preferably assigned

AMR function.

Note: This threshold must be lower than the TCH Traffic Thrsh.

SD allocation priority allowed iInterf. Priority allowed

Range: Yes, No Range: Yes, No

Unit - Unit -


Description: If the setting is "No", the Description: Indicates whether the

allocation. If the setting is "Yes", then the optimum selection is

adopted.

Note: This threshold must be lower than the TCH Traffic Thrsh.

Active Ch Inter. Meas. allowed Allocation TRX priority allowed


Unit - Unit -


Description: Indicates whether the inter Description: Whether the TRX priority is u

measured. If the setting "No", the system does not judge whether

the active channel is interfered, or sending interference indication

message. Otherwise, judgment will be made.

History records priority allowed Balance traffic allowed


Unit - Unit _


Description: Whether the history record pri Description: If the setting is

channel will be the starting ch

to be allocated.

Interf. of UL Level thrsh. Interf. of UL qual. Thrsh.

Range: 063, (-110 dBm -47 dBm) Range: 070, (RQ0RQ7)

Unit Grade Unit quality grade value


Description: Threshold of uplink stDescription: Threshold of uplink qu

channel is greater than this threshInterf. of UL level Thrsh. .

worse than or equal to the Interf. of UL Qual. Thrsh., then uplink

interference exists.

Interf. of DL Level Thrsh. Interf. of DL Qua. Thrsh.

Range: 063, (-110 dBm -47 dBm) Range: 070, (RQ0RQ7)

Unit Grade Unit quality grade value


Description: Threshold of downlink Description: Threshold of downlink

of a channel is greater than this tInterf. of DL level Thrsh..

quality is worse than or equal to the Interf. of DL Qual. Thrsh.,

then uplink interference exists.

Filter length for TCH Level Filter length for TCH Qual.


Unit - Unit -


Description: Used to filter the rece Description: Used to filter the rece

quality is worse than or equal to the Interf. of DL Qual. Thrsh.,

Filter length for SDCCH Level Filter length for SDCCH Qual.


Unit - Unit -


Description: Used to filter the receiviDescription: Used to filter the receivi

Update Period of CH Record Update Freq. Of CH record

Range: 11,440 Range: 063

Unit Minute Unit -


Description: In HW_II channel managDescription: The history record priority higher than the value of this parameter

(set by this parameter) expires, thwill be refreshed through subtracting the value of this parameter.

will be refreshed through subtract See the description of Update Period of CH record

CH record ". Thus the channel priority is raised. This parameter

together with the "Update Freq. of CH record works to prevent a

channel from being allocated again, which has been deteriorated for

a period of time.

Description: The history record priority higher than the value of this parameter

will be refreshed through subtracting the value of this parameter.

HANDOVERPWRCCHAN

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Hua We i Unique Parameters for s