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Contents

About This Document.....................................................................................................................1

1 Power Control Parameters........................................................................................................1-1

1.1 Uplink PowerControl Parameters...................................................................................................................1-2

1.1.1 Power Offset Between Access Preamble and Message Control Part.....................................................1-41.1.2 PRACHInitial Transmit Power Constant..............................................................................................1-5

1.1.3 PRACHPower Ramp Step.....................................................................................................................1-6

1.1.4 Maximum Preamble Retransmit Attempts.............................................................................................1-6

1.1.5 Maximum Preamble Loop......................................................................................................................1-7

1.1.6 Default DPCCH Transmit Power Constant............................................................................................1-8

1.1.7 Maximum Allowed Uplink Transmit Power of the UE.........................................................................1-8

1.1.8 RRC/HHO Process SRB Delay............................................................................................................1-10

1.1.9 RRC/HHO Process DPCCH Power Control Preamble Length............................................................1-11

1.2 Downlink Power Control Parameters............................................................................................................1-11

1.2.1 Maximum Downlink Transmit Power of the Radio Link....................................................................1-13

1.2.2 Minimum Downlink Transmit Power of the Radio Link.....................................................................1-14

1.2.3 Cell PCPICH Transmit Power..............................................................................................................1-15

1.2.4 Maximum PCPICH Transmit Power....................................................................................................1-16

1.2.5 Minimum PCPICH Transmit Power....................................................................................................1-16

2 Handover Parameters................................................................................................................2-1

2.1 Intra-Frequency Handover Parameters............................................................................................................2-2

2.1.1 Softer Handover Combination Indication Switch..................................................................................2-4

2.1.2 Intra-Frequency Measurement L3 Filter Coefficient.............................................................................2-4

2.1.3 Weighting Factor....................................................................................................................................2-6

2.1.4 Soft Handover Relative Thresholds.......................................................................................................2-7

2.1.5 Event 1F Absolute Thresholds...............................................................................................................2-8

2.1.6 Hysteresis Related to Soft Handover.....................................................................................................2-9

2.1.7 Time to Trigger Related to Soft Handover...........................................................................................2-11

2.1.8 Minimum Quality Threshold of Soft Handover...................................................................................2-13

2.1.9 Affect 1A and 1B Event Thresholds Flag............................................................................................2-14

2.1.10 Cell Individual Offset.........................................................................................................................2-14

2.2 Inter-Frequency Handover Parameters..........................................................................................................2-15

2.2.1 Inter-Frequency Measurement Report Mode.......................................................................................2-19

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2.2.2 Inter-Frequency Measurement Item.....................................................................................................2-20

2.2.3 Inter-Frequency Measurement Layer 3 Filter Coefficients..................................................................2-22

2.2.4 Frequency Weighting Factor................................................................................................................2-23

2.2.5 Hysteresis Related to Inter-Frequency Handover................................................................................2-24

2.2.6 Time to Trigger Related to Inter-Frequency Hard Handover...............................................................2-25

2.2.7 RSCP-Based Inter-Frequency Measurement Start/Stop Thresholds....................................................2-26

2.2.8 EC/No-based Inter-Frequency Measurement Start/Stop Thresholds.............................................. .....2-27

2.2.9 Target Frequency Trigger Threshold of Inter-Frequency Coverage....................................................2-28

2.2.10 Current Used Frequency Quality Threshold of Inter-Frequency Handover.......................................2-29

2.2.11 Inter-Frequency Measurement Minimum Access Thresholds...........................................................2-30


2.2.13 Inter-Frequency/Inter-RAT Algorithm Switches...............................................................................2-32

2.2.14 Inter-Frequency/Inter-RAT Measurement Threshold Choice............................................................2-33

2.2.15 Inter-Frequency Measure Timer Length............................................................................................2-34

2.3 Coverage-Based Inter-RAT Handover Management Parameters.................................................................2-34

2.3.1 Inter-RAT Measurement L3 Filter Coefficients...................................................................................2-39

2.3.2 Inter-RAT Measurement Report Mode................................................................................................2-39

2.3.3 Frequency Weighting Factor................................................................................................................2-41

2.3.4 Inter-RAT Period Report Interval........................................................................................................2-42

2.3.5 BSIC Verify Selection Switch..............................................................................................................2-42

2.3.6 Inter-RAT Measurement Quantity.......................................................................................................2-43

2.3.7 RSCP-Based Inter-RAT Measurement Start/Stop Thresholds.............................................................2-44

2.3.8 Ec/No-Based Inter-RAT Measurement Start/Stop Thresholds............................................................2-452.3.9 Inter-RAT Handover Judging Thresholds............................................................................................2-46

2.3.10 Time to Trigger Related to Inter-RAT Handover..............................................................................2-47

2.3.11 Hysteresis Related to Coverage-Based Inter-RAT Handover............................................................2-48

2.3.12 Time to Trigger for Verified GSM Cell.............................................................................................2-49

2.3.13 Time to Trigger for Non-verified GSM Cell......................................................................................2-50

2.3.14 PenaltyTime for Inter-RAT Handover..............................................................................................2-51


2.3.16 Current Used Frequency Quality Threshold of Inter-RAT Handover...............................................2-52

2.3.17 Inter-RAT Measure Timer Length.....................................................................................................2-53

2.4 Non Coverage-Based Inter-RAT Handover Management Parameters.........................................................2-54

2.4.1 Inter-RAT Service Handover Switches................................................................................................2-56

2.4.2 Inter-RAT Measurement L3 Filter Coefficient....................................................................................2-57

2.4.3 Hysteresis of Event 3C.........................................................................................................................2-57

2.4.4 BSIC Verify Selection Switch..............................................................................................................2-58

2.4.5 Non Coverage-Based Inter-RAT Handover Judging Thresholds.........................................................2-59

2.4.6 Penalty Time for Inter-RAT Handover................................................................................................2-60

2.4.7 Inter-RAT Handover Max Attempt Times...........................................................................................2-61

2.4.8 Inter-RAT Measure Timer Length.......................................................................................................2-62

2.5 Blind Handover Management Parameters.....................................................................................................2-63

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2.5.1 Blind Handover Flag............................................................................................................................2-63

2.5.2 Blind Handover Priority.......................................................................................................................2-64

2.6 Cell Selection and Reselection......................................................................................................................2-65

2.6.1 Measurement Hysteresis Parameters....................................................................................................2-68

2.6.2 Load Level Offsets...............................................................................................................................2-69

2.6.3 Minimum Quality Criterion.................................................................................................................2-70

2.6.4 Minimum Access Level.......................................................................................................................2-71

2.6.5 Cell Reselection Start Thresholds........................................................................................................2-72

2.6.6 Reselection Hysteresis Time................................................................................................................2-73

2.6.7 Minimum Access Level for Inter-RAT Cell........................................................................................2-73

2.6.8 2G Idle Mode MS's Searching for 3G Cell Signal Level Threshold....................................................2-75

2.6.9 3G Cell Reselection Signal Level Offset.............................................................................................2-75

2.6.10 3G Cell Reselection Signal Level Threshold.....................................................................................2-76

2.7 Neighbor Management Parameters...............................................................................................................2-762.7.1 Neighbor Priority Flag.........................................................................................................................2-77

2.7.2 Neighbor Priority..................................................................................................................................2-78

3 Admission Control Parameters................................................................................................3-1

3.1 Uplink and Downlink Initial Access Rates of BE Service..............................................................................3-5

3.2 IntelligentAdmission Algorithm Switch........................................................................................................3-5

3.3 Uplink Total Equivalent User Number...........................................................................................................3-7

3.4 DownlinkTotal NonHSDPA Equivalent User Number.................................................................................3-8

3.5 AMR Voice Uplink Threshold for Conversation Service...............................................................................3-8

3.6 Non AMRVoice Uplink Threshold of Conversation Service........................................................................3-93.7 AMR Voice Downlink Threshold for Conversation Service........................................................................3-10

3.8 Non AMRVoice Downlink Threshold of Conversation Service.................................................................3-11

3.9 Uplink Threshold for Other Services............................................................................................................3-12

3.10 Downlink Threshold for Other Services.....................................................................................................3-13

3.11 Uplink Handover Admission Threshold.....................................................................................................3-14

3.12 Downlink Handover Admission Threshold.................................................................................................3-15

3.13 Downlink Total Power Threshold...............................................................................................................3-16

3.14 Uplink Handover Credit Reserved SF.........................................................................................................3-17

3.15 Downlink Handover Credit and Channel Code Resource Reserved SF.....................................................3-17

4 Load Control Parameters..........................................................................................................4-1

4.1 Cell Load Reshuffling Algorithm Parameters.................................................................................................4-2

4.1.1 Uplink and Downlink LDR Algorithm Switches...................................................................................4-6

4.1.2 LDR Period Timer Length.....................................................................................................................4-7

4.1.3 Uplink and Downlink LDR Trigger Thresholds and Release Thresholds.............................................4-8

4.1.4 Uplink or Downlink LDR Actions.........................................................................................................4-9

4.1.5 Uplink/Downlink LDR Action Handing User Number.......................................................................4-10

4.1.6 Uplink and Downlink Inter-Frequency Cell Load Handover Load Space Thresholds........................4-13

4.1.7 Uplink and Downlink Inter-Frequency Cell Load Handover Maximum Band Width.........................4-13

4.1.8 Cell SF Reserved Threshold.................................................................................................................4-14

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4.1.9 Uplink or Downlink Credit SF Reserved Threshods...........................................................................4-15

4.1.10 LDR Code Priority Indicator..............................................................................................................4-16

4.1.11 MBMS Power Control Service Priority Threshold............................................................................4-16

4.2 Cell Overload Congestion Control Algorithm Parameters...........................................................................4-17

4.2.1 Uplink and Downlink OLC Algorithm Switches.................................................................................4-19

4.2.2 OLC Period Timer Length...................................................................................................................4-20

4.2.3 Uplink and Downlink OLC Trigger Threshold and Release Threshold..............................................4-21

4.2.4 Uplink and Downlink OLC Fast TF Restriction Times.......................................................................4-22

4.2.5 Uplink and Downlink OLC Fast TF Restrict RAB Number................................................................4-22

4.2.6 OLCFast TF Restrict Data Rate Restrict Timer Length And Recover Timer Length........................4-23

4.2.7 Uplink and Downlink Release RAB Number......................................................................................4-24

5 PS Service Rate Control Parameters.......................................................................................5-1

5.1 BE Service Related Threshold Parameters......................................................................................................5-2

5.1.1 BE Service Handover Rate Threshold................................................................................................... 5-3

5.1.2 Uplink/Downlink BE Service Insured Rate...........................................................................................5-4

5.1.3 UpLink and Downlink BE traffic DCH decision threshold...................................................................5-5

5.1.4 DL Streaming Threshold on HSDPA.....................................................................................................5-6

5.1.5 DL BE Traffic Threshold on HSDPA....................................................................................................5-6

5.1.6 UL BE Traffic Threshold on HSUPA....................................................................................................5-7

5.1.7 UL Streaming Traffic Threshold on HSUPA.........................................................................................5-7

5.1.8 Streaming Service HSUPA Transmission Mode................................................................................... 5-8

5.2 Dynamic Channel Configuration Control Parameters.................................................................................... 5-8

5.2.1 Traffic Upper Threshold.......................................................................................................................5-10

5.2.2 Traffic Lower Threshold......................................................................................................................5-11

5.2.3 Time to Trigger Event 4A....................................................................................................................5-12

5.2.4 Time to Trigger Event 4B....................................................................................................................5-12

5.2.5 PendingTime after Trigger Event 4A..................................................................................................5-13

5.2.6 Pendingtime after trigger Event 4B.....................................................................................................5-14

5.2.7 Uplink and Downlink DCCC Rate Thresholds....................................................................................5-15

5.2.8 Uplink and Downlink Middle Rate Thresholds...................................................................................5-15

5.2.9 Uplink and Downlink Rate Adjust Levels...........................................................................................5-16

5.2.10 Low activity bitrate threshold............................................................................................................5-175.3 Link StabilityParameters..............................................................................................................................5-17

5.3.1 Event Ea Relative Threshold................................................................................................................5-18

5.3.2 Event Eb Relative Threshold................................................................................................................5-19

5.3.3 Uplink Full Coverage Rate...................................................................................................................5-19

5.3.4 Downlink Full Coverage Rate..............................................................................................................5-20

5.4 State TransferParameters..............................................................................................................................5-21

5.4.1 DCH to FACH State Transition Timer................................................................................................5-22

5.4.2 DCH to FACH / FACH to PCH State Transition Traffic 4B Threshold..............................................5-23

5.4.3 FACH to PCH State Transition Timer.................................................................................................5-23

5.4.4 Cell ReSelection Timer........................................................................................................................5-24

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5.4.5 FACH to DCH Traffic Report Threshold............................................................................................5-25

5.4.6 FACH to DCH Traffic Time to trigger................................................................................................5-25

5.5 PS Inactive.....................................................................................................................................................5-26

5.5.1 Interactive Service T1..........................................................................................................................5-27

5.5.2 Interactive Service T2..........................................................................................................................5-28

5.5.3 Background Service T1........................................................................................................................5-28

5.5.4 Background Service T1........................................................................................................................5-29

5.5.5 IMS Service T1....................................................................................................................................5-30

5.5.6 IMS Service T2....................................................................................................................................5-30

5.6 RLC Retransmission Monitor Algorithm Parameters...................................................................................5-31

5.6.1 Time to Start Re-TX Monitor...............................................................................................................5-32

5.6.2 Re-Tx Monitor Period..........................................................................................................................5-33

5.6.3 Retransmission Filter Coefficient.........................................................................................................5-34

5.6.4 Event A threshold.................................................................................................................................5-34

5.6.5 Event ATime to Trigger......................................................................................................................5-35

5.6.6 Event APending Time after Trigger....................................................................................................5-35

5.6.7 Event A Report Period.........................................................................................................................5-36

5.6.8 Event BThreshold................................................................................................................................5-36

5.6.9 Event BTime to Trigger......................................................................................................................5-37

5.6.10 Event B Pending Time after Trigger..................................................................................................5-38

6 Miscellaneous Topic Parameters.............................................................................................6-1

6.1 Cell Channel Power Distribution Parameters........................... .......................................................................6-2

6.1.1 Maximum Cell Transmit Power.............................................................................................................6-3

6.1.2 Cell PCPICH Transmit Power................................................................................................................6-4

6.1.3 PSCH and SSCH Transmit Power.........................................................................................................6-4

6.1.4 BCHTransmit Power.............................................................................................................................6-5

6.1.5 Maximum FACH Transmit Power.........................................................................................................6-6

6.1.6 PCH Transmit Power.............................................................................................................................6-7

6.1.7 PICH Transmit Power............................................................................................................................6-7

6.1.8 AICH Transmit Power...........................................................................................................................6-8

6.2 Paging Parameters...........................................................................................................................................6-9

6.2.1 Paging Cycle Coefficient.......................................................................................................................6-96.2.2 Numberof Paging Retransmit..............................................................................................................6-10

6.3 RRC Connection Setup Parameters...............................................................................................................6-11

6.3.1 T300 and N300.....................................................................................................................................6-11

6.4 Synchronization Parameters..........................................................................................................................6-12

6.4.1 Numberof Successive In-sync Indications..........................................................................................6-14

6.4.2 Number of Successive Out-of-sync Indications...................................................................................6-14

6.4.3 Radio Link Failure Timer Duration.....................................................................................................6-15

6.4.4 N312 and T312.....................................................................................................................................6-16

6.4.5 N313, N315, and T313.........................................................................................................................6-17

6.5 Location Update Parameters.........................................................................................................................6-17

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6.5.1 Periodic Location Update Timer..........................................................................................................6-18

6.6 User Priority Related Parameters..................................................................................................................6-18

6.6.1 User Priority of Allocation/Retension Priority 1~14...........................................................................6-19

6.6.2 Integrate Priority Configured Reference..............................................................................................6-20

6.6.3 Indicator of Carrier Type Priority........................................................................................................6-21

7 HSDPA Parameters....................................................................................................................7-1

7.1 HSDPA Power Resource Management Parameters........................................................................................7-2

7.1.1 HS-DPCCH Power Management Parameters........................................................................................7-2

7.1.2 Total Power of HSDPA and Measurement Power Offset Constant.......................................................7-9

7.2 HSDPA CodeResource Management Algorithm Parameters......................................................................7-11

7.2.1 HSDPACode Resource Distribution Mode.........................................................................................7-12

7.2.2 Numberof HS-PDSCH Codes.............................................................................................................7-12

7.2.3 Number of Maximum HS-PDSCH Codes.................................................... .......................................7-13

7.2.4 Numberof Minimum HS-PDSCH Codes............................................................................................7-14

7.2.5 Numberof HS-SCCH Codes................................................................................................................7-14

7.3 HSDPA Mobility Management Parameters..................................................................................................7-15

7.3.1 HSPA Handover Protection Length.....................................................................................................7-15

7.4 HSDPA Direct Retry and Switch of Channel Types Parameters..................................................................7-17

7.4.1 D2H Retry Timer Length.....................................................................................................................7-18

7.4.2 Timer Length of D2H Intra-Handover.................................................................................................7-19

7.4.3 Timer Length of D2H Inter-Handover.................................................................................................7-19

7.4.4 Timer Length of Multi-Carrier Handover............................................................................................7-20

7.4.5 Compress Mode Permission Indication on HSDPA............................................................................7-21

7.5 HSDPA Admission Control Algorithm.........................................................................................................7-21

7.5.1 Maximum HSDPA Users of NodeB....................................................................................................7-22

7.5.2 UL HS-DPCCH Reserve Factor...........................................................................................................7-23

7.5.3 HSDPA Streaming PBR Threshold......................................................................................................7-23

7.5.4 HSDPA Best Effort PBR Threshold....................................................................................................7-24

7.5.5 Maximum HSDPA User Number........................................................................................................7-25

8 HSUPA Parameters....................................................................................................................8-1

8.1 HSUPA MAC-e Scheduling Algorithm Parameters.......................................................................................8-2

8.1.1 Maximum Target Uplink Load Factor...................................................................................................8-2

8.1.2 Target Non-Serving E-DCH to Total E-DCH Power Ratio...................................................................8-3

8.2 HSUPA Admission Control Algorithm...........................................................................................................8-4

8.2.1 Maximum HSUPA User Number.......................................................................................................... 8-4

8.2.2 DL HSUPA Reserved Factor ................................................................................................................ 8-5

8.2.3 NodeB Maximum HSUPA User Number..............................................................................................8-6

9 MBMS Parameters.....................................................................................................................9-1

9.1 MBMS Admission and Load Control Parameters...........................................................................................9-2

9.1.1 Maximum Transmit Power of the FACH...............................................................................................9-3

9.1.2 Minimum Coverage Percentage of the MBMS Service with the Highest Priority................................9-4

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9.1.3 Minimum Coverage Percentage of the MBMS Service with the Lowest Priority.................................9-5

9.1.4 Service Priority Threshold for Decreasing Power..................................................................................9-5

9.1.5 MBMS Preempt Algorithm Switch........................................................................................................9-6

9.2 FLC/FLD Algorithm Parameters....................................................................................................................9-7

10 Algorithm Switches...............................................................................................................10-1

10.1 Connection-Oriented Algorithm Switches in RNC.....................................................................................10-2

10.1.1 Channel Class Algorithm Switches....................................................................................................10-2

10.1.2 Handover Algorithm Switches...........................................................................................................10-6

10.1.3 Power Control Algorithm Switches.................................................................................................10-11

10.1.4 HSPA Algorithm Switches...............................................................................................................10-12

10.1.5 DRD Algorithm Switches................................................................................................................10-14

10.2 Cell Algorithm Switches...........................................................................................................................10-15

10.2.1 Cell Algorithm Switches..................................................................................................................10-15

10.2.2 UplinkAdmission Control Algorithm Switch ................................................................................10-17

10.2.3 Downlink Admission Control Algorithm Switch.............................................................................10-17

10.3 Other Algorithm Switches.........................................................................................................................10-18

10.3.1 Iub CAC Algorithm Switches..........................................................................................................10-18

10.3.2 IubBandwidth Congestion Control Algorithm Switch....................................................................10-19

10.3.3 Intra-Frequency Measurement Control Information Indication.......................................................10-19

10.3.4 Inter-Frequency/Inter-RAT Measurement Indication......................................................................10-20

10.3.5 FACH Measurement Indicator ........................................................................................................10-20

11 Transmission Resource Management Parameters...........................................................11-1

11.1 Transmission Common Parameters.............................................................................................................11-2

11.1.1 AAL2 Path Type................................................................................................................................11-2

11.1.2 IP Path Type.......................................................................................................................................11-3

11.1.3 Per-Hop Behavior...............................................................................................................................11-3

11.2 Iub Admission Control Parameters.............................................................................................................11-4

11.2.1 Reserved Bandwidth for Forward/Backward Handover....................................................................11-4

11.3 Iub Congestion Control Parameters............................................................................................................11-5

11.3.1 Forward/Backward Congestion Threshold.........................................................................................11-8

11.3.2 Forward/Backward Congestion Clear Threshold...............................................................................11-9

11.3.3 Iub Bandwidth Congestion Control Algorithm Switch......................................................................11-9

11.3.4 Timer Length for Iub Bandwidth Restriction Service Rate Reduction............................................11-10

11.3.5 Iub Congestion Factors.....................................................................................................................11-11

12 Parameters Configured on NodeB LMT............................................................................12-1

12.1 HSDPA Flow Control Parameters...............................................................................................................12-2

12.1.1 HSDPA Bandwidth Adjustment Switch............................................................................................12-2

12.1.2 Frame Discard Rate Threshold on Iub Interface................................................................................12-3

12.1.3 Time Delay Threshold on Iub Interface.............................................................................................12-4

12.2 HSDPA MAC-hs Scheduling Algorithm Parameters.................................................................................12-5

12.2.1 Resource Allocate Method.................................................................................................................12-8

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12.2.2 Scheduling Method............................................................................................................................12-9

12.2.3 Maximum Retransmission Count.....................................................................................................12-10

12.2.4 Power Margin...................................................................................................................................12-10

12.2.5 HS-SCCH Power Control Method...................................................................................................12-11

12.2.6 HS-SCCH Fixed Power or Initial Transmit Power..........................................................................12-12

12.2.7 Target HS-SCCH FER.....................................................................................................................12-12

12.2.8 Initial BLER of Data Transfer .........................................................................................................12-13

12.2.9 Resource Limiting Switch................................................................................................................12-14

12.2.10 HSDPA Dynamic Code Switch......................................................................................................12-14

12.2.11 16QAM Switch..............................................................................................................................12-15

12.2.12 CQI Filter Alpha.............................................................................................................................12-16

12.2.13 GBR for SPI...................................................................................................................................12-16

12.2.14 Weight for SPI................................................................................................................................12-18

12.2.15 Resource Limiting Ratio for SPI....................................................................................................12-18

12.3 HSUPA MAC-e Scheduling Algorithm Parameters.................................................................................12-19

12.3.1 AG Threshold...................................................................................................................................12-20

12.3.2 Average Rate Initial Value...............................................................................................................12-20

12.3.3 GBR Schedule Switch......................................................................................................................12-21

12.3.4 Sort Rate Weight..............................................................................................................................12-22

12.3.5 Sort Rate RSN Weight.....................................................................................................................12-22

12.4 HSUPA Power Control Parameters...........................................................................................................12-23

12.4.1 Power Control Algorithm Switches for Downlink Control Channel...............................................12-23

12.4.2 Fixed Power Control Mode Algorithm Parameters..........................................................................12-2812.4.3 Dynamic Power Control Mode Algorithm Parameters....................................................................12-32

12.5 Local Cell Management Parameters..........................................................................................................12-36

12.5.1 Cell Radius.......................................................................................................................................12-36

12.5.2 Cell Handover Radius......................................................................................................................12-37

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Figures

Figure 7-1Impact from over long HSPA protection length...............................................................................7-16

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Table 9-1List of MBMS admission and preempt algorithm parameters.............................................................9-2

Table 9-2List of FLC/FLD algorithm parameters...............................................................................................9-7

Table 10-1Channel algorithm switch................................................................................................................10-3

Table 10-2Handover algorithm switches...........................................................................................................10-6

Table 10-3Power control algorithm switch.....................................................................................................10-11

Table 10-4HSPA Algorithm Switches............................................................................................................10-13

Table 10-5List of DRD algorithm switch........................................................................................................10-14

Table 10-6Cell algorithm switch.....................................................................................................................10-16

Table 10-7CAC algorithm switches................................................................................................................10-18

Table 11-1List of transmission common parameters........................................................................................11-2

Table 11-2List of Iub admission control parameters.........................................................................................11-4

Table 11-3List of Iub congestion control parameters........................................................................................11-6

Table 11-4Iub Congestion Factor Configuration.............................................................................................11-12

Table 12-1List of HSDPA flow control parameters..........................................................................................12-2

Table 12-2List of HSDPA MAC-hs scheduling algorithm parameters.............................................................12-5

Table 12-3GBR, weight and resource limiting ratio for SPI...........................................................................12-17

Table 12-4List of HSUPA MAC-e scheduling algorithm parameters............................................................12-19

Table 12-5List of power control algorithm switches for downlink control channel.......................................12-23

Table 12-6List of fixed power control mode algorithm parameters................................................................12-28

Table 12-7List of dynamic power control mode algorithm parameters..........................................................12-32

Table 12-8List of local cell management parameters......................................................................................12-36

Tables

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About This Document

Purpose

This document provides the engineering technician of commercial office with a parameter setting

baseline and parameter adjustment instructions.

Related Versions

The following table lists the product versions related to this document.

Product Name Version

RNC V200R009

NodeB V100R008

Intended Audience

This document is intended for:

l RNP engineers

l RNO engineers

Update History

Refer to Changes in RAN Network Optimization Parameter Reference.

Organization1 Power Control Parameters

Power control is a key WCDMA technique, through which near and far effect, shadow fading

and fast fading can be overcome to ensure uplink and downlink network performance, reduce

network interference and improve the system quality and capacity. As a result, power control

parameter values have great impact on the network.

2 Handover Parameters

Handover aims to ensure communication continuity and good communication quality.

Handovers in WCDMA system are of the following types: soft handover, softer handover, intra-

frequency hard handover, inter-frequency hard handover, inter-RAT hard handover and so on.Handover emerges as the important factor affecting network performance, and handover

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optimization is also significant in network optimization. Handover parameters are described

according to the handover classification.

3 Admission Control Parameters

Admission control is a way for coordinating the WCDMA system capacity, coverage and quality,and it ensures the system stability and QoS requirement by control over user access.

4 Load Control Parameters

Load control is another very important function in WCDMA system. It maintains the system

load within the normal range to ensure that the systems overall QoS is in the normal range. The

load control includes LDR (Load Reshuffling) and OLC (Overload Control).

5 PS Service Rate Control Parameters

The PS Service rate control includes dynamic channel configuration, state transfer.

6 Miscellaneous Topic Parameters

Special topicparameters include parameters for cell channel power distribution, paging, RRC

connection setup, synchronization and location updating.

7 HSDPA Parameters

HSDPA parameters include HSDPA power resource management parameters, HSDPA code

resource management algorithm parameters, HSDPA mobility management parameters,

HSDPA direct retry and switch of channel types parameters, and HSDPA call admission control

algorithm parameters.

8 HSUPA Parameters

HSUPA parameters include HSUPAMAC-e scheduling algorithm parameters, HSUPA powercontrol parameters, and HSUPA admission control parameters.

9 MBMS Parameters

MBMS parameters mainly include MBMS admission and load control parameters.

10 Algorithm Switches

In the RNC, algorithm switches are divided into two classes: connection-oriented algorithm

switches and cell-oriented algorithm switches.

11 Transmission Resource Management Parameters

The common configurable transmission parameters are listed here.

12 Parameters Configured on NodeB LMT

The parameters configured on the NodeB LMT described here mainly consist of the HSDPA

flow control parameters, the HSDPA MAC-hs scheduling algorithm parameters, the HSUPA

MAC-e scheduling algorithm parameters, the HSUPA power control parameters and the local

cell management parameters.

Conventions

1. Symbol Conventions

The following symbols may be found in this document. They are defined as follows

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Symbol Description

DANGER

Indicates a hazard with a high level of risk that, if not avoided,

will result in death or serious injury.

WARNING

Indicates a hazard with a medium or low level of risk which, if

not avoided, could result in minor or moderate injury.

CAUTION

Indicates a potentially hazardous situation that, if not avoided,

could cause equipment damage, data loss, and performance

degradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or save your

time.

NOTE Provides additional information to emphasize or supplement

important points of the main text.

2. General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files,directories,folders,and users are in boldface. For

example,log in as user root.

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...} Alternative items are grouped in braces and separated by vertical

bars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets and

separated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by vertical

bars.A minimum of one or a maximum of all can be selected.

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[ x | y | ... ] * Alternative items are grouped in braces and separated by vertical

bars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are in

boldface. For example,click OK.

> Multi-level menus are in boldfaceand separated by the ">" signs.

For example,choose File > Create > Folder .

5. Keyboard Operation


Key Press the key.For example,press Enterand press Tab.

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+A

means the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the two

keys should be pressed in turn.

6. Mouse Operation

Action Description

Click Select and release the primary mouse button without moving the

pointer.

Double-click Press the primary mouse button twice continuously and quickly

without moving the pointer.

Drag Press and hold the primary mouse button and move the pointer

to a certain position.

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1Power Control ParametersAbout This Chapter

Power control is a key WCDMA technique, through which near and far effect, shadow fading

and fast fading can be overcome to ensure uplink and downlink network performance, reduce

network interference and improve the system quality and capacity. As a result, power control

parameter values have great impact on the network.

1.1 Uplink Power Control Parameters

The common configurable uplink power control parameters are listed here.

1.2 Downlink Power Control Parameters

The common configurable downlink power control parameters are listed here.

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1.1 Uplink Power Control Parameters

The common configurable uplink power control parameters are listed here.

Table 1-1List of uplink power control parameters

No.

Parameter ID

ParameterMeaning

DefaultValue

Relevant Command Level

1 PowerOffs

etPpm

Power offset

between the

last access

preamble and

message

control part

Signalling: -3

dB

Services: -2 dB

Set: ADD PRACHTFC

Modify: The PRACH TFC

needs to be deleted before

being reconfigured.

Cell

2 ConstantV

alue

Constant for

PRACH

initial

transmit

power

-20, that is, -20

dB

Set: ADD PRACHBASIC

Modify: The PRACH needs

to be deleted before being

reconfigured.

Cell

3 PowerRam

pStep

Power

increase step

of random

access

preamble

2, that is, 2 dB

4 PreambleR

etransMax

Maximum of

preamble

retransmissio

n

8 times

5 Mmax Max

preamble

loop

8 times Set: ADD RACH

Query: LST RACH

Modify: MOD RACH

Cell

6 DefaultCo

nstantValu

e

Default

constant for

initialDPCCH

transmit

power

-27, that is, -27

dB

Set or modify: SET FRC

Query: LST FRC

RNC

1 Power Control Parameters

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No.

Parameter ID

ParameterMeaning

DefaultValue

Relevant Command Level

7 MaxAllow

edUlTxPo

wer

MaxUlTx

PowerFor

Conv

MaxUlTx

PowerFor

Str

MaxUlTx

PowerForI

nt

MaxUlTxPowerFor

Bac

Maximum

UE uplink

transmit

power per

service

24, that is, 24

dBm

MaxAllowedUlTxPower

Set: ADDCELLSELRESEL

Query: LST

CELLSELRESEL

Modify: MOD

CELLSELRESEL

Service-Oriented

Parameters

Set: ADD CELLCAC

Query: LST CELLCAC

Modify: MOD CELLCAC

Cell

8 RRCPRO

CSRBDE

LAY

HHOPRO

CSRBDE

LAY

Delay of SRB

in DCH RRC

process

[Frame]

Delay of SRB

in DCH HHO

process

[Frame]

7 Set: ADD CELLCAC

Query: LST CELLCAC

Modify: MOD CELLCAC

Cell

9 RRCPRO

CPCPREA

MBLE

HHOPRO

CPCPREA

MBLE

RRC Proc

DPCCH PC

preamble

length

[Frame]

HHO Proc

DPCCH PC

preamble

length

[Frame]

RRC: 0

HHO: 7

1.1.1 Power Offset Between Access Preamble and Message Control Part

This parameter is the power offset between the last access preamble and the message control

part. The access preamble power plus this offset equals the power of the control part.

1.1.2 PRACH Initial Transmit Power Constant

This parameter is the constant for the UE to estimate the initial PRACH transmit power in the

open loop power control process.

1.1.3 PRACH Power Ramp Step

This parameter is the power increase step of the random access preambles transmitted before

the UE which receives the acquisition indicator in the random access process.

1.1.4 Maximum Preamble Retransmit Attempts

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This parameter is the maximum number of preambles retransmission of the UE in a preamble

ramping cycle.

1.1.5 Maximum Preamble Loop

This parameter defines the maximum number of random access preamble loops. When the UE

has transmitted the access preamble and the number of retransmission times has reachedPreambleRetransMax, if the UE still has not received the capture indication, it repeats the access

attempt after the specified waiting time. The maximum number of recycle cannot exceed Mmax.

1.1.6 Default DPCCH Transmit Power Constant

This parameter is used by the RNC to compute the DPCCH power offset which is used by the

UE to compute the initial transmit power of UL DPCCH during the open loop power control

process.

1.1.7 Maximum Allowed Uplink Transmit Power of the UE

The MaxAllowedULTxPower parameter determines the maximum transmit power of an UE

when the UE gains access to a specific cell. This means that the cell selects

UE_TXPWR_MAX_RACH in the S rule. In addition, there are four maximum UE transmitpower parameters oriented to different QoS services.

1.1.8 RRC/HHO Process SRB Delay

This parameter defines the delay of SRB in DCH RRC/HHO process.

1.1.9 RRC/HHO Process DPCCH Power Control Preamble Length

This parameter defines the DPCCH power control preamble length in DCH RRC/HHO process.

1.1.1 Power Offset Between Access Preamble and Message ControlPart

This parameter is the power offset between the last access preamble and the message controlpart. The access preamble power plus this offset equals the power of the control part.

Parameter ID

PowerOffsetPpm

Value Range

5 to 10

Physical Value Range

5 dB to 10 dB, step 1 dB

Parameter Setting

According tothe field test results, the recommended value during signaling transmission is set

to 3 dB, andthat during service transmission to 2 dB.

Impact on the Network Performance

l

If the parameter value is set too low, it is likely that the signaling and the service data carriedover theRACH cannot be received by UTRAN, which affects the uplink coverage.


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l If the value is too high, the uplink interference is increased, and the uplink capacity is

affected.

Relevant Commands

Set the parameter through ADD PRACHTFC, delete the PRACH TFC through RMV

PRACHTFCbefore reconfiguring it.

It is necessary to deactivate PRACH (DEA PRACH) and the cell (DEA CELL) before RMV

PRACHTFCis executed.

1.1.2 PRACH Initial Transmit Power Constant

This parameter is the constant for the UE to estimate the initial PRACH transmit power in the

open loop power control process.

Parameter ID

ConstantValue

Value Range

-35 to -10


-35 dB to -10 dBstep 1 dB

Parameter Setting

The default value is -20, that is, -20 dB.

This parameter is used to calculate the transmit power of the first preamble in the random access

process. The formula is as follows:

Preamble_Initial_Power= PCPICH DL TX power- CPICH_RSCP+ UL_interference+

Constant_Value

where

l Preamble_Initial_Poweris the preamble initial transmit power of the UE.l PCPICH DL TX poweris downlink transmit power of the PCPICH.

l CPICH_RSCPis the received signaling code power of the PCPICH measured by the UE.

l UL_interferenceis the uplink interference, which is obtained by the UE receiving data

from the broadcast channel. It is calculated at the network side and broadcast to the UE.

This value is kept in the background record of the UE under test.

l Constant_Valueis obtained by the UE receiving data from the broadcast channel.


l

If the parameter value is set too high, the initial transmit power becomes higher, whereasthe duration of the access process becomes shorter.

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l If the value is too low, to satisfy the requirement of access power, it requires more ramps

and lengthens the access period.

Relevant Commands

Set this parameter through ADD PRACHBASICand modify it through MOD

PRACHUUPARAS.

1.1.3 PRACH Power Ramp Step

This parameter is the power increase step of the random access preambles transmitted before

the UE which receives the acquisition indicator in the random access process.

Parameter ID

PowerRampStep

Value Range

1 to 8


1 dB to 8 dB, step 1 dB

Parameter Setting

The default value is 2, that is 2 dB.


l If this value is too high, the access process is shortened, but the probability of power waste

is higher.

l If it is too low, the access process is lengthened, but the transmitting power is saved.

It is a value should be weighed.

Relevant Commands

Set this parameter through ADD PRACHBASICmodify it through MOD

PRACHUUPARAS, and query it through LST PRACH.

1.1.4 Maximum Preamble Retransmit Attempts

This parameter is the maximum number of preambles retransmission of the UE in a preamble

ramping cycle.

Parameter ID

PreambleRetransMax

Value Range

1 to 64


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1 to 64 times

Parameter SettingThe default value is 8 times.

The product of this parameter and the previous PRACH Power Ramp Step determines the

maximum ramp power of the UE within a preamble ramping cycle.


l If this value is too low, the preamble power may fail to ramp to the required value, resulting

in UE access failure.

l If it is too high, the UE may repeatedly make access attempts by increasing the transmit

power, resulting in interference to other users.

Relevant Commands

Set this parameter through ADD PRACHBASIC, modify it through MOD

PRACHUUPARAS, and query it through LST PRACH.

1.1.5 Maximum Preamble Loop

This parameter defines the maximum number of random access preamble loops. When the UE

has transmitted the access preamble and the number of retransmission times has reached

PreambleRetransMax, if the UE still has not received the capture indication, it repeats the accessattempt after the specified waiting time. The maximum number of recycle cannot exceed Mmax.

Parameter ID

Mmax

Value Range

1 to 32

Physical Value RangeNone.

Parameter Setting

The default value is 8.


l If this parameter is too low, the UE access success rate is influenced.

l

If it is too high, the UE probably tries access attempt repeatedly within a long time, whichincreases the uplink interference.

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Relevant Commands

Set this parameter through ADD RACH, query it through LST RACH, and modify it through

MOD RACH.

1.1.6 Default DPCCH Transmit Power ConstantThis parameter is used by the RNC to compute the DPCCH power offset which is used by the

UE to compute the initial transmit power of UL DPCCH during the open loop power control

process.

Parameter ID

DefaultConstantValue

Value Range

-35 to -10


-35 dB to -10 dB

Parameter Setting

The default value is -27, that is -27 dB.

The formula given in the protocol 25.331 is as follows:

DPCCH_Initial_power= DPCCH_Power_offset- CPICH_RSCP

Where, CPICH_RSCPis the received signaling code power of the PCPICH measured by the

UE.


l If this parameter is too low, the uplink synchronization at the cell verge may fail during

initial link setup, which influences the uplink coverage.

l If it is too high, it leads to instant interference to the uplink receiving, decreasing uplink

receiving performance.

Relevant CommandsSet or modify this parameter through SET FRCand query it through LST FRC.

1.1.7 Maximum Allowed Uplink Transmit Power of the UE

The MaxAllowedULTxPower parameter determines the maximum transmit power of an UE

when the UE gains access to a specific cell. This means that the cell selects

UE_TXPWR_MAX_RACH in the S rule. In addition, there are four maximum UE transmit

power parameters oriented to different QoS services.

Parameter ID

MaxAllowedUlTxPower


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MaxUlTxPowerForConv (maximum transmit power for the session service)

MaxUlTxPowerForStr (maximum transmit power for the stream service)

MaxUlTxPowerForInt (maximum transmit power for the exchange service)

MaxUlTxPowerForBac (maximum transmit power for the background service)

Value Range

-50 to +33


-50 dBm to +33 dBm, with step length as 1 dBm

Parameter Setting

The setting of this parameter is based on the planned uplink network coverage.

The default setting of MaxAllowedULTxPower is 21, which stands for 21 dBm. The values of

the other four parameters cannot be greater than the value of MaxAllowedULTxPower.

By default, the parameters MaxUlTxPowerForConv, MaxUlTxPowerForStr,

MaxUlTxPowerForInt, and MaxUlTxPowerForBac are set to 24 dBm.

If the capacity of a cell is restricted, this group of parameters are not a constraint for the cell.

The reason is that the rapid power control function can dynamically adjust the transmit power

of an UE. If the coverage of a cell is restricted, the following formula is provided according to

the requirement of full coverage: You can infer that

Noiserise= Itotal/PN.

Where:

l PUE,maxrepresents the maximum transmit power of the UE.

l Lmaxrepresents the maximum path loss.

l The character v represents the activation factor of a service.l Gprepresents the processing gain of a service. The formula is: Gp= W/R, where W

represents signal bandwidth and R represents the data transmission rate of a service.

l Garepresents antenna gain, which is the sum of the actual antenna gain and the cable loss

gain.

l Gdrepresents the sum of diversity gains, such as multi-path diversity gain and receiver

antenna gain.

l PNrepresents the background noise.

l Eb/Io represents the target SIR value of a service.

For the services that do not require full cell coverage, you can also use the previous formula tomeasure the transmit power of the UE that meets the special requirement for coverage area. If

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the transmit power of an UE has reached the maximum, you can use the previous formula to

measure the uplink coverage area.

Impact on Network Performance

If coverage area is restricted, the uplink coverage area is affected if this parameter is set to a

very small value.

Relevant Commands

MaxAllowedUlTxPower: use the ADD CELLSELRESELcommand for configuration, the

LST CELLSELRESELcommand for query, and the MOD CELLSELRESELcommand for

modification.

Service-oriented parameters: use the ADD CELLCACcommand for configuration, the LST

CELLCACcommand for query, and the MOD CELLCACcommand for modification.

1.1.8 RRC/HHO Process SRB Delay

This parameter defines the delay of SRB in DCH RRC/HHO process.

Parameter ID

RRCPROCSRBDELAY

HHOPROCSRBDELAY

Value Range

0 to 7


0 to 7 frames, step is 1

Parameter Setting

The default value of each parameter is 7.

The delay of SRB involves the following signalling: PHYSICAL CHANNEL

RECONFIGURATION, RADIO BEARER ESTABLISHMENT, RADIO BEARER

RECONFIGURATION, RADIO BEARER RELEASE, TRANSPORT CHANNEL

RECONFIGURATION, HANDOVER TO UTRAN COMMAND, RRC CONNECTION

SETUP and CELL UPDATE CONFIRM.


The improper setting of this parameter will result in data loss and retransmission delay, which

may have a negative effect on service rate and transmission delay.

Relevant Commands

Set this parameter through ADD CELLCAC, query it through LST CELLCACand modify itthrough MOD CELLCAC.


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1.1.9 RRC/HHO Process DPCCH Power Control Preamble Length

This parameter defines the DPCCH power control preamble length in DCH RRC/HHO process.

Parameter IDRRCPROCPCPREAMBLE

HHOPROCPCPREAMBLE

Value Range

0 to 7


0 to 7 times, step is 1

Parameter Setting

RRCPROCPCPREAMBLE is set to 0 by default, and the default value of

HHOPROCPCPREAMBLE is 7.

The power control preamble involves the following signalling: PHYSICAL CHANNEL

RECONFIGURATION, RADIO BEARER ESTABLISHMENT, RADIO BEARER

RECONFIGURATION, RADIO BEARER RELEASE, TRANSPORT CHANNEL

RECONFIGURATION, HANDOVER TO UTRAN COMMAND, RRC CONNECTION

SETUP and CELL UPDATE CONFIRM.

This parameter is initially used for uplink/downlink power control convergence, preventing UEfrom using an uncontrollable power at the beginning. When the UE transmits signals on the

DPCCH, the NodeB needs a period of time to recognize the uplink signals. The length of this

period of time depends on the search implementation and the transmission delay. It is useless to

start the uplink transmission on DPDCH before the above process is completed. Because at that

time, the data can not be correctly received and will be lost. If the AM mode is used, the

retransmission may lead to a much longer delay for data transmission.

The power control algorithm 1 is the only selection during the preamble period. This parameter

is closely related to the DPCCH initial transmit power, the initial SIR target, the power control

algorithm itself and the NodeB search ability, so it should be properly adjusted in reality.

Impact on the Network PerformanceThe improper setting of this parameter will result in data loss and retransmission delay, which

may have a negative effect on service rate and transmission delay.

Relevant Commands

Set this parameter through ADD CELLCAC, query it through LST CELLCACand modify it

through MOD CELLCAC.

1.2 Downlink Power Control ParametersThe common configurable downlink power control parameters are listed here.

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Table 1-2List of downlink power control parameters

No. Parameter ID

ParameterMeaning

Default Value RelevantCommand

Level

1 RlMaxDlPwr

Maximumdownlink

transmit

power of

the radio

link

Refer to the tableMaximum and

minimum

downlink transmit

powers

Set: ADDCELLRLPWR

Query: LST

CELLRLPWR

Modify: MOD

CELLRLPWR

Cell

2 RlMinD

lPwr

Minimum

downlink

transmit

power of

the radio

link

3 PCPICH

Power

Cell

PCPICH

transmit

power

330, that is, 33 dBm Set: ADD PCPICH

Query: LST

PCPICH

Modify: MOD

CELL

4 MaxPC

PICHPo

wer

Maximum

PCPICH

transmit

power

346, that is, 34.6

dBm

Set: ADD PCPICH

Query: LST

PCPICH

Modfy: MOD

PCPICHPWR5 MinPCP

ICHPow

er

Minimum

PCPICH

transmit

power

313, that is, 31.3

dBm

1.2.1 Maximum Downlink Transmit Power of the Radio Link

This parameter is the maximum downlink transmit power of radio link. It should fulfill the

coverage requirement of the network planning, and the value is relative to PCPICH transmit

power.

1.2.2 Minimum Downlink Transmit Power of the Radio Link

This parameter is the minimum transmit power of downlink radio link. It should be considered

with the maximum downlink transmit power and the dynamic range of power control, and its

value is relative to PCPICH transmit power.

1.2.3 Cell PCPICH Transmit Power

It is used to determine the power of Primary CPICH of a cell. The reference point is the antenna

connector of NodeB. Its value is related to the downlink coverage in the network planning.

1.2.4 Maximum PCPICH Transmit Power

It is used to determine the maximum transmit power of primary CPICH of a cell. The reference

point is the antenna connector of NodeB. Its value is related to the downlink coverage in the

network planning.

1.2.5 Minimum PCPICH Transmit Power


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It is used to determine the minimum transmit power of primary CPICH of a cell. The reference

point is the antenna connector of NodeB. Its value is related to the downlink coverage in the

network planning.

1.2.1 Maximum Downlink Transmit Power of the Radio LinkThis parameter is the maximum downlink transmit power of radio link. It should fulfill the

coverage requirement of the network planning, and the value is relative to PCPICH transmit

power.

Parameter ID

RlMaxDlPwr

Value Range

-350 to 150


-35 dB to 15 dB, step 0.1 dB

Parameter Setting

The service type and the service rate should be considered in parameter configuration. For an

individual service, the configuration values are listed in Table 1-3.

Table 1-3Maximum and minimum downlink transmit powers

Service Type (uint: bit/s) Max. Downlink TransmitPower (in the parenthesesis the dB value)

Min. DownlinkTransmit Power (in theparentheses is the dBvalue)

CS

12.2K AMR 0(0) -150(-15)

64K transparent data 30(3) -120(-12)

56K transparent data 0(0) -150(-15)

32K transparent data -20(-2) -170(-17)

28.8K transparent data -20(-2) -170(-17)

57.6K controllable stream -10(-1) -160(-16)

PS

0 stream (unidirectional) -20(-2) -170(-17)

384K 40(4) -110(-11)

256K 20(2) -130(-13)

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Service Type (uint: bit/s) Max. Downlink TransmitPower (in the parenthesesis the dB value)

Min. DownlinkTransmit Power (in theparentheses is the dBvalue)

144K 0(0) -150(-15)

128K 0(0) -150(-15)

64K 0(0) -150(-15)

32K -40(-4) -190(-19)

16K -60(-6) -210(-21)

8K -80(-8) -230(-23)

For combined services, the maximum and minimum transmit power is computed by the RNCaccording to the configuration of individual services.


l If this parameter is too high, downlink interference may occur.

l If it is too low, it may influence the normal functioning of downlink power control.

Relevant Commands

Set this parameter through ADD CELLRLPWR, query it through LST CELLRLPWRand

modify it through MOD CELLRLPWR.

1.2.2 Minimum Downlink Transmit Power of the Radio Link

This parameter is the minimum transmitpower of downlink radio link. It shouldbe considered

with the maximum downlink transmit power and the dynamic range of power control, and its

value is relative to PCPICH transmit power.

Parameter ID

RlMinDlPwr

Value Range

-350 to 150


-35 dB to 15 dB, step 0.1 dB

Parameter Setting

Since the dynamic range of power control is set to 15 dB, this parameter is recommended as RL

Max DL TX power-15 dB and refer to the related description of the sub clause MaximumDownlink Transmit Power of the Radio Link.


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l If this parameter is too low, the transmit power may become too low because of incorrect

estimation of SIR.

l If it is too high, it may influence the normal functioning of downlink power control.

Relevant Commands

Set this parameter through ADD CELLRLPWR, query it through LST CELLRLPWRand

modify it through MOD CELLRLPWR.

1.2.3 Cell PCPICH Transmit Power

It is used to determine the power of Primary CPICH of a cell. The reference point is the antenna

connector of NodeB. Its value is related to the downlink coverage in the network planning.

Parameter ID

PCPICHPower

Value Range

-100 to 500


-10 dBm to 50 dBm, step 0.1 dBm

Parameter Setting

The default setting is 330, namely 33 dBm.

This parameter should be set based on the actual system environment such as cell coverage

(radius) and geographical environment. For the cells to be covered, the downlink coverage

should be guaranteed as a premise. For the cells requiring sof

Documents

RAN Network Optimization Parameter Reference -RAN 6.1