Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC

02.06.12

Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC)

Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC) Contents 1.Set 1. Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC)

Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC) Function Use this command to set the basic parameters for power control of a cell.

Note None

Parameter Parameter ID

Parameter Parameter Description Name

I DTY PE

Ind ex Ty pe Meaning: Type of an index GUI Value Range: BYNAME(By Name), BYID(By Index) Actual Value Range: BYNAME, BYID Unit: None Default Value: None Recommended Value: None Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

C ELL ID

Cel l Ind ex Meaning: Index of a cell, uniquely identifying a cell in a BSC6900 GUI Value Range: 0~2047 Actual Value Range: 0~2047 Unit: None Default Value: None Recommended Value: None Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

C ELL NA ME

Cel l Nam e

Meaning: Name of a cell. This parameter uniquely identifies a cell in an BSC6900. Cell names cannot contain the following invalid characters: , ; = " ' In addition, cell names cannot contain two or more consecutive %, two or more consecutive spaces, or more than two consecutive +. GUI Value Range: None Actual Value Range: 1~64 characters Unit: None Default Value: None Recommended Value: None Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

P CAD JP ERI OD

PC Interval

Meaning: Minimum interval between two consecutive power control commands GUI Value Range: 1~15 Actual Value Range: TCH:480~7200, step:480; SDCCH:470~7050, step:470 Unit: ms Default Value: None Recommended Value: 3 Parameter Relationship: This parameter is valid when command is set to PWR2.

P W R C T R L S W in the S E T G C E L L P W R B A S I C

Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

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ULSSHIGHTHRED


UL RX_LEV Upper Threshold

Meaning: When the uplink receive level reaches the threshold, Huawei II power control is performed. GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 30 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: U L S S H I G H T H R E D >= U L S S L O W T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a control may not be performed when the voice quality is good, and increasing the interference. If this parameter is set to control may be performed when the voice quality is bad, thus

ULSSLOWTHRED

UL RX_LEV Lower Threshold

greater value, downward power thus causing the power waste a smaller value, downward power affecting the voice quality.

Meaning: When the uplink receive level is below the threshold, Huawei II power control is performed. GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 18 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: U L S S H I G H T H R E D >= U L S S L O W T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, upward power control may be performed when the voice quality is good, thus causing the power waste and increasing the interference. If this parameter is set to a smaller value, upward power control may not be performed when the voice quality is bad, thus affecting the voice quality.

ULQHIGHTHRED

UL Qual. Upper Threshold

Meaning: The MS transmit power is decreased only when the quality level of the MS transmit signal is smaller than the value of the parameter. If (the uplink receive level - MAX Up Adj. PC Value by Qual) is smaller than U L R X _ L E V L o w e r T h r e s h o l d , the MS transmit power is not adjusted. GUI Value Range: 0~7 Actual Value Range: 0~7 Unit: None Default Value: None Recommended Value: 0 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: U L Q L O W T H R E D >= U L Q H I G H T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a smaller value, downward power control is not performed when the signal quality is good, thus causing power waste and increasing the interference. If this parameter is set to a greater value, downward power control is performed even though the signal quality is bad, thus affecting the speech quality.

ULQLOWTHRED

UL Qual. Lower Threshold

Meaning: The MS transmit power is increased only when the quality level of the MS transmit signal is greater than the value of the parameter. If (the uplink receive level + MAX Up Adj. PC Value by Qual) is greater than U L R X _ L E V U p p e r T h r e s h o l d , the MS transmit power is not adjusted. GUI Value Range: 0~7 Actual Value Range: 0~7 Unit: None Default Value: None Recommended Value: 3 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: U L Q L O W T H R E D >= U L Q H I G H T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, upward power control may not be performed when the voice quality is bad, thus affecting the voice quality. If this parameter is set to a smaller value, upward power control may be performed when the voice quality is good, thus causing the power waste and increasing the interference.

DLSSHIGHTHRED

DL RX_LEV Upper Threshold

Meaning: Upper threshold for downlink signal strength If the downlink received signal level is greater than this threshold, a power decrease is computed. Then, the power is decreased by the least of the power decrease, maximum power


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adjustment step allowed by the quality zone to which the received signal quality belongs, and M A X D o w n A d j . P C V a l u e b y Q u a l . . Power decrease = downlink received signal level - ( D L R X _ L E V U p p e r T h r e s h o l d + A M R D L R X _ L E V L o w e r T h r e s h o l d )/2 The maximum power adjustment step allowed by the quality zone is chosen from M A X D o w n A d j . V a l u e Q u a l . Z o n e 0 , M A X D o w n A d j . V a l u e Q u a l . Z o n e 1 , and M A X D o w n A d j . V a l u e Q u a l . Z o n e 2 according to the quality zone. GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 45 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: D L S S H I G H T H R E D >= D L S S L O W T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode)

DLSSLOWTHRED

DL RX_LEV Lower Threshold

Impact on Network Performance: If this parameter is set to a greater value, decrease power control may not be performed when the downlink level is high, thus causing the power waste and increasing the interference. If this parameter is set to a smaller value, decrease power control may be performed when the downlink power is low, in this way, call drops may occur. Meaning: Lower threshold for downlink signal strength If the downlink received signal level is less than this threshold, a power increase is computed. Then, the power is increased by the least of the power increase, M A X U p A d j . P C V a l u e b y R X _ L E V , and M A X U p A d j . P C V a l u e b y Q u a l . . Power increase = ( D L R X _ L E V U p p e r T h r e s h o l d + A M R D L R X _ L E V L o w e r T h r e s h o l d )/2 downlink received signal level GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 28 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: D L S S H I G H T H R E D >= D L S S L O W T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, increase power control may be performed when the downlink level is high, thus causing the power waste and increasing the interference. If this parameter is set to a smaller value, increase power control may not be performed when the downlink power is low, in this way, call drops may occur.

DLQHIGHTHRED

DL Qual. Upper Threshold

Meaning: Quality level threshold for decreasing downlink signal power. If the BTS transmits signals at a quality level less than this threshold, the BSC decreases the power of the BTS. If (downlink receive level - M A X D o w n A d j . P C V a l u e b y Q u a l . ) < D L R X _ L E V L o w e r T h r e s h o l d , the BSC does not adjust the transmit power. GUI Value Range: 0~7 Actual Value Range: 0~7 Unit: None Default Value: None Recommended Value: 0 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: D L Q L O W T H R E D >= D L Q H I G H T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a control may not be performed when the voice quality is good, and increasing the interference. If this parameter is set to control may be performed when the voice quality is bad, thus

DLQLOWTHRED

DL Qual. Lower Threshold

smaller value, downlink power thus causing the power waste a greater value, downlink power affecting the voice quality.

Meaning: Quality level threshold for increasing downlink signal power. If the BTS transmits signals at a quality level greater than this threshold, the BSC increases the power of the BTS. If (downlink receive level + M A X U p A d j . P C V a l u e b y Q u a l . ) > D L R X _ L E V U p p e r T h r e s h o l d , the BSC does not adjust the transmit power. GUI Value Range: 0~7 Actual Value Range: 0~7 Unit: None Default Value: None Recommended Value: 2 Parameter Relationship: This parameter is valid only when P W R C T R L S W in S E T G C E L L P W R B A S I C is set to PWR2. The following condition must be met: D L Q L O W T H R E D >= D L Q H I G H T H R E D . Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, uplink power


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control may not be performed when the voice quality is bad, thus affecting the voice quality. If this parameter is set to a smaller value, uplink power control may be performed when the voice quality is good, thus causing the power waste and increasing the interference. PWRCTRLSW

Power Control Switch

Meaning: Whether to enable power control algorithm II or power control algorithm III GUI Value Range: PWR2(Power control II), PWR3(Power controlIII) Actual Value Range: PWR2, PWR3 Unit: None Default Value: None Recommended Value: PWR3 Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

AMRSADLUPGRADE

AMR SACCH Downlink Power Upgrade

Meaning: Number of levels by which the BTS increases the power of an SACCH frame. This parameter is used for SACCH power control. When sending an SACCH frame, the BTS increases the power of the SACCH frame by this specified number of levels. GUI Value Range: 0~15 Actual Value Range: 0~15 Unit: None Default Value: None Recommended Value: 0 Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

PWRBCDALLOWD

Power Forecast Allowed

Meaning: Whether to allow active power control. If this parameter is set to YES, the system performs power forecast in the process of initial access assignment or service channel activation during intra-BSC handovers, and sends the forecast initial power information to the BTSs through channel activation messages. In this way, the MSs and BTSs can adjust the transmit power. If this parameter is set to NO, the system does not perform power forecast, and the MSs and BTSs choose the maximum transmit power. GUI Value Range: NO(No), YES(Yes) Actual Value Range: NO, YES Unit: None Default Value: None Recommended Value: NO Parameter Relationship: None Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

COMBINERLOSS

Combiner Loss

Meaning: Combined loss used to estimate the downlink power during assignment GUI Value Range: 0~100 Actual Value Range: 0~10, step:0.1 Unit: dB Default Value: None Recommended Value: 45 Parameter Relationship: This parameter is valid only when

P W R B C D A L L O W D is set to YES.

Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None DOUBLEANTENNAGAIN Double Antenna Gain

Meaning: Dual-antenna gain used to estimate the downlink power during assignment GUI Value Range: 0~255 Actual Value Range: 0~25.5, step:0.1 Unit: dB Default Value: None Recommended Value: 30 Parameter Relationship: This parameter is valid only when


Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: As the double antenna gain increases, the downlink power increases; as the double antenna gain decreases, the downlink power decreases. PATHLOSS

Path Loss of Different Frequency Band

Meaning: Transmission loss difference between radio frequencies on different bands GUI Value Range: 0~255 Actual Value Range: 0~25.5, step:0.01 Unit: dB Default Value: None Recommended Value: 79 Parameter Relationship: This parameter is valid only when



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Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None EXPDLRXLEV

Expected DL RX_LEV

Meaning: Received signal strength at an MS expected in power forecast, which helps to compute the initial transmit power of the BTS GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 30 Parameter Relationship: This parameter is valid only when


Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, the effectiveness of power control is reduced, and thus the network interference can not be reduced effectively. If this parameter is set to a smaller value, call drops may occur due to excessive power control. EXPULRXLEV

Expected UL RX_LEV

Meaning: Received signal strength at the BTS expected in power forecast, which helps to compute the initial transmit power of an MS GUI Value Range: 0~63 Actual Value Range: 0~63 Unit: dB Default Value: None Recommended Value: 30 Parameter Relationship: This parameter is valid only when


Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: If this parameter is set to a greater value, the effectiveness of power control is reduced, and thus the network interference can not be reduced effectively. If this parameter is set to a smaller value, call drops may occur due to excessive power control. SAICALLOWED

SAIC Allowed

Meaning: Whether an MS supports the SAIC function. Single Antenna Interference Cancellation (SAIC) is used to reduce the impact of interference on the reception of downlink signals through a signal processing technology. An MS enabled with SAIC has improved ability of anti-interference. After SAIC is enabled, the thresholds for BTS/MS Power Control are adjusted to improve the radio performance of the BSS. GUI Value Range: NO(No), YES(Yes) Actual Value Range: NO, YES Unit: None Default Value: None Recommended Value: NO Parameter Relationship: This parameter is valid only when


Service Interrupted After Modification : No (No impact on the UE in idle mode) Impact on Network Performance: None

Example To set the basic parameters for power control of the cell (Index Type = BYID; Cell Index = 0; PC Interval = 3; UL RX_LEV Upper Threshold = 35; UL RX_LEV Lower Threshold = 25), run the following command: SET GCELLPWRBASIC: IDTYPE=BYID, CELLID=0, PCADJPERIOD=3, ULSSHIGHTHRED=35, ULSSLOWTHRED=25;


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Set Basic Parameters for Power Control of Cell(SET GCELLPWRBASIC

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