Radio Parameters Manual (Volume II) ZTE 2G.pdf

ZXG10 BSSBase Station Subsystem

Radio Parameters Manual(Volume II)

Version 6.20

ZTE CORPORATION ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhen, P. R. China 518057 Tel: (86) 755 26771900 800-9830-9830 Fax: (86) 755 26772236 URL: http://support.zte.com.cn E-mail: [email protected]

LEGAL INFORMATION Copyright 2006 ZTE CORPORATION. The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of this document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations. All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE CORPORATION or of their respective owners. This document is provided as is, and all express, implied, or statutory warranties, representations or conditions are disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or non-infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on the information contained herein. ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subject matter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its licensee, the user of this document shall not acquire any license to the subject matter herein. ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice. Users may visit ZTE technical support website http://ensupport.zte.com.cn to inquire related information. The ultimate right to interpret this product resides in ZTE CORPORATION.

Revision History

Date Revision No. Serial No. Reason for Issue

Nov 30, 2008 R1.0 sjzl20086194 First edition

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Document Name

ZXG10 BSS (V6.20) Base Station Subsystem Radio Parameters Manual (Volume II)

Product Version V6.20 Document Revision Number R1.0

Serial No. sjzl20086194 Equipment Installation Date

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Contents

About This Manual ............................................................ i

Purpose................................................................................ i Intended Audience ................................................................. i Prerequisite Skill and Knowledge .............................................. i What Is in This Manual ........................................................... i Related Documentation.......................................................... ii Conventions........................................................................ iii How to Get in Touch............................................................. iv

Chapter 1.......................................................................... 1

Cell Object Parameters....................................................1

TRX Parameters ..............................................................1 TRX Parameters....................................................................1 Channel Information Parameters .............................................9 IP INFORMATION PARAMETERS............................................. 16 Carrier Panel Parameters ..................................................... 19 Power Control Parameters .................................................... 23 Power Survey..................................................................... 26 Power Adjust Threshold ....................................................... 34 GPRS Power Control ............................................................ 48

Handover Control Parameters ......................................... 52 Handover Pretreatment........................................................ 53 Handover Threshold ............................................................ 64 Handover Condition............................................................. 76 Handover Control................................................................ 82 Others............................................................................... 92 Handover Algorithm .......................................................... 100 Subcell Parameters ........................................................... 115

UTRAN Handover Control Parameters............................. 120 Basic properties 1 ............................................................. 120 Basic properties 2 ............................................................. 126

UTRAN Cell Control Parameters ..................................... 135 Basic properties 1.............................................................. 135 Basic properties 2.............................................................. 143 GPRS Parameters 1 ........................................................... 159 GPRS Parameters 2 ........................................................... 172 Adjacent Interference Cell Parameters.................................. 183 Adjacent Cell Handover and Reselection Parameters ............... 184 Adjacent Cell Handover Parameters ..................................... 199 Adjacent Cell Reselection Parameters ................................... 211 UTRAN Adjacent Cell Handover and Reselection Parameters .... 214 UTRAN Adjacent Cell Handover Parameters ........................... 221 UTRAN Adjacent Cell Reselection Parameters......................... 226 Frequency Hopping System Parameters ................................ 230

Chapter 2......................................................................235

Module Parameters......................................................235

Operation Control Parameters ............................................. 235 FUC Parameters ................................................................ 236 Handover parameters of BCCH and SD ................................. 241 Other Parameters.............................................................. 249 IBS Parameters................................................................. 258

Appendix A...................................................................263

Abbreviations...............................................................263

Appendix B ...................................................................267

Value of Flow control Policy ........................................267

Appendix C ...................................................................269

Value of Power.............................................................269

Appendix D...................................................................271

Value of Cell Layer Num...............................................271

Appendix E ...................................................................273

Correlation between Parameter Interface Display and Database Value ............................................................273

BSC Global Resource Parameters Interface ..................... 273 Basic Property Parameters.................................................. 273

Radio Basic Property Parameters ......................................... 276 Subcell Parameters ........................................................... 281 Subcell Object Parameters ................................................. 292

Appendix F ...................................................................299

Figures..........................................................................299

Tables...........................................................................301

Index............................................................................313

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Confidential and Proprietary Information of ZTE CORPORATION i

About This Manual

In this manual, ZXG10 BSS (V6.20) is mentioned as ZXG10 BSS for short.

Purpose

Purpose of this manual is to provide complete information about ZXG10 BSS, including:

Working Principles

Structures

Networking Modes and System Configuration

Intended Audience

This document is intended for network maintenance technicians and engineers.

Prerequisite Skill and Knowledge

To use this document effectively, users should have a general understanding of networking and network interfaces. Familiarity with the following is helpful:

ZXG10 system and its various components

Interfaces on the network

Operating procedures

What Is in This Manual

This manual contains the following sections:

T AB L E 1 - M AN U AL S U M M AR Y

Section Summary


ii Confidential and Proprietary Information of ZTE CORPORATION

Section Summary

Chapter 1, Cell Object Parameters

Describes cell object parameters.

Chapter 2, Module Parameters

Describes module parameters.

Appendix A, Abbreviations

Lists all the abbreviations used in this manual.

Appendix B, Value of Flow control Policy

The table of flow control policy.

Appendix C, Value of Power

The table of power value.

Appendix D, Value of Cell Layer Num

The table of cell layer num value.

Appendix E

Correlation between Parameter Interface Display and Database Value

Describes Correlation between Parameter Interface Display and Database Value.

Appendix F

Figures and Tables

Lists all the figures and tables appeared in this manual.

Index Lists all the index appeared in this manual.

Related Documentation

The following documents are related to this manual:

ZXG10 iBSC (V6.20) Base Station Controller Documentation Guide

ZXG10 BSS (V6.20) Base Station Subsystem Alarm Handling Manual

ZXG10 BSS (V6.20) Base Station Subsystem Notification Handling Manual

ZXG10 BSS (V6.20) Base Station Subsystem OMM Software Installation Manual

ZXG10 BSS (V6.20) Base Station Subsystem Configuration Manual (Initial Configuration Guide)

ZXG10 BSS (V6.20) Base Station Subsystem Configuration Manual (Function Configuration Guide)

ZXG10 BSS (V6.20) Base Station Subsystem MML Command Manual

ZXG10 BSS (V6.20) Base Station Subsystem Radio Parameters Manual (Volume I)

ZXG10 BSS (V6.20) Base Station Subsystem Operation Manual (Diagnostic Test)

About This Manual

Confidential and Proprietary Information of ZTE CORPORATION iii

ZXG10 BSS (V6.20) Base Station Subsystem Operation Manual (Signaling Tracing)

ZXG10 iBSC (V6.20) Base Station Controller Performance Counter Manual - Volume I

ZXG10 iBSC (V6.20) Base Station Controller Performance Counter Manual - Volume II

ZXG10 iBSC (V6.20) Base Station Controller Performance Counter Manual - Volume III

Conventions

ZTE documents employ the following typographical conventions.

T AB L E 2 - TY P O G R AP H I C A L C O N V E N T I O N S

Typeface Meaning

Italics References to other Manuals and documents.

Quotes Links on screens.

Bold Menus, menu options, function names, input fields, radio button names, check boxes, drop-down lists, dialog box names, window names.

CAPS Keys on the keyboard and buttons on screens and company name.

Constant width Text that you type, program code, files and directory names, and function names.

[ ] Optional parameters.

{ } Mandatory parameters.

| Select one of the parameters that are delimited by it.

Note: Provides additional information about a certain topic.

Checkpoint: Indicates that a particular step needs to be checked before proceeding further.

Tip: Indicates a suggestion or hint to make things easier or more productive for the reader.

T AB L E 3 - M O U S E OP E R AT I O N C O N V E N T I O N S

Typeface Meaning

Click Refers to clicking the primary mouse button (usually the left mouse button) once.

Double-click Refers to quickly clicking the primary mouse button (usually the left mouse button) twice.

Typographical Conventions

Mouse Operation

Conventions


iv Confidential and Proprietary Information of ZTE CORPORATION

Typeface Meaning

Right-click Refers to clicking the secondary mouse button (usually the right mouse button) once.

Drag Refers to pressing and holding a mouse button and moving the mouse.

How to Get in Touch

The following sections provide information on how to obtain support for the documentation and the software.

If you have problems, questions, comments, or suggestions regarding your product, contact us by e-mail at [email protected]. You can also call our customer support center at (86) 755 26771900 and (86) 800-9830-9830.

ZTE welcomes your comments and suggestions on the quality and usefulness of this document. For further questions, comments, or suggestions on the documentation, you can contact us by e-mail at [email protected]; or you can fax your comments and suggestions to (86) 755 26772236. You can also browse our website at http://support.zte.com.cn, which contains various interesting subjects like documentation, knowledge base, forum and service request.

Customer Support

Documentation Support

Confidential and Proprietary Information of ZTE CORPORATION 1

C h a p t e r 1

Cell Object Parameters

This chapter describes cell object parameters, including power control, handover, and reselection parameters.

TRX Parameters TRX parameters are divided into two sub-interfaces. If the site is IP access point, TRX information interface will add [IP information] sub-interface.

TRX Parameters

The interface of TRX Parameters is as shown in Figure 1.


2 Confidential and Proprietary Information of ZTE CORPORATION

F I G U R E 1 - TRX P AR AM E T E R S

TRX ID (TrxId)

T AB L E 4 - TRX ID

Full name TRX ID

Abbreviation TrxId

3GPP Name --

3GPP reference

--

Description TRX number in the cell. According to GSM specifications, one cell can have 64 carriers at most.

Management Object

TRX

Value Range 1 ~ 60

Unit None

Default Sort in order.

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Chapter 1 - Cell Object Parameters


SubCell ID (SubCellId)

T AB L E 5 - S U B C E L L ID

Full name SubCell ID

Abbreviation SubCellId

3GPP Name --

3GPP reference

--

Description

If it is cell with dual frequencies, this parameter describes the subCell of the dual-frequency cell in which the TRX is; if it is not dual-frequency cell, this parameter is First Subcell. It is unmodifiable after being created.

Management Object

TRX

Value Range

When "Subcell Used (SubCellUsed)" is No, value range is the first subcell;

When "Subcell Used (SubCellUsed)" is Yes, value range is the first and the second subcell.

Unit None

Default First Subcell

Relevant Functions

ZGF05-05-002 Concentric Circle Technology

ZGF05-09-006 Co-BCCH/Common BCCH

Relevant parameters

--

Related interfaces

--

TRX Type (TrxType)

T AB L E 6 - TRX TY P E

Full name TRX Type

Abbreviation TrxType

3GPP Name --

3GPP reference

--



Description

Common TRX is suitable for common cell. After adding the function of supporting extended cell, a third type of TRX is added -- Expand TRX, realizing large coverage range.

In common cell, TRX Type shall be configured as Normal TRX;

When subcell is not supported under extended cell, TRX Type shall be configured as Extended TRX; when subcell is supported under extended cell, subcell 1 shall be configured as Extended TRX, and no special requirements for subcell 2.

Management Object

TRX

Value Range Common TRX, Expand TRX

Unit None

Default Common TRX

Relevant Functions

ZGF05-13-001 Extended Cell Coverage

Relevant parameters

Ts No.

Related interfaces

--

Priority (TrxPriority)

T AB L E 7 - P R I O R I T Y

Full name Assign Priority of the Trx

Abbreviation TrxPriority

3GPP Name --

3GPP reference

--

Description

This parameter describes priorities for allocating carriers of the same type. 1 represents the highest priority. Select channels on carriers with high priority when allocating channels.

Management Object

TRX

Value Range 1 ~ 5

Unit None

Default

When "BCCH Carrier (IsBcchMark)" is No, default value is 3;

When "BCCH Carrier (IsBcchMark)" is Yes, default value is 1;



Relevant Functions

ZGF05-09-009 Enhancement on Channel Allocation

Relevant parameters

--

Related interfaces

--

BCCH carrier frequency (IsBcchMark)

T AB L E 8 - C A R R I E R F R E Q U E N C Y

Full name BCCH carrier frequency

Abbreviation IsBcchMark

3GPP Name --

3GPP reference

--

Description One and only one BCCH carrier frequency must be configured in a cell.

Management Object

TRX

Value Range Yes/No

Unit None

Default No

Relevant Functions

--

Relevant parameters

Priority (TrxPriority)

Support Fhs

Related interfaces

--

Static power level (PwRreduction)

T AB L E 9 - S T AT I C P O W E R L E V E L

Full name Static power level

Abbreviation PwRreduction

3GPP Name static RF power step

3GPP reference

3GPP TS 45.005 V5.14.0



Description

This parameter represents the static power level of transceiver. Usually a static power control is added on the basis of TRX transmission power specified by Static power level. Namely, a restriction is added based on the maximum transmission power, thus to get the actual maximum transmission power Pn of the TRX. The dynamic power control is implemented based on the maximum transmission power Pn.

Management Object

TRX

Value Range

Max output power, Max output power - 2 dB, Max output power - 4 dB, Max output power - 6 dB, Max output power - 8 dB, Max output power - 10 dB, Max output power - 12 dB, Max output power + 1.5 dB, Max output power + 1 dB, Max output power + 0.5 dB

Unit None

Default Max output power

Relevant Functions

ZGF05-06-001 Static BTS Power Control

Relevant parameters

--

Related interfaces

--

Power level (PowerClass)

T AB L E 10 - PO W E R L E V E L

Full name Power level

Abbreviation PowerClass

3GPP Name --

3GPP reference

--

Description

This parameter can configure power level of carrier, which can convert this value to actual power value, used to calculate path loss and CI value in measurement report.

Management Object

TRX

Value Range 1 ~ 8

Unit None

Default 3

Relevant Functions

--



Relevant parameters

--

Related interfaces

--

Support Fhs

T AB L E 11 - SU P P O R T FH S

Full name Support Fhs

Abbreviation --

3GPP Name hopping

3GPP reference

3GPP TS 44.018 V5.22.0

Description

This parameter indicates if frequency-hopping is supported. When this parameter is configured as Yes, "Frequency" parameter is blocked, and "frequency-hopping" parameter is added.

Note: S8001 only has a frequency, and doesn't support frequency-hopping.

Management Object

TRX

Value Range

When "BCCH Carrier (IsBcchMark)" is No, default value is Yes/No;

When "BCCH Carrier (IsBcchMark)" is Yes, default value is No;

Unit None

Default No

Relevant Functions

ZGF05-12-001 Synthesized Frequency Hopping

ZGF05-12-005 Baseband Frequency Hopping

Relevant parameters

--

Related interfaces

--

Frequency

T AB L E 12 - FR E Q U E N C Y

Full name Frequency

Abbreviation --

3GPP Name --

3GPP reference

--



Description Select the frequency point of this transceiver.

Management Object

TRX

Value Range

Frequency band is GSM900: 1~124;

Frequency band is EXT900: 0~124, 975~1023

Frequency band is DCS1800: 512~885;

Frequency band is PCS1800: 512~810;

Frequency band is GSM850: 128~251;

Unit None

Default Based on the set frequency

Relevant Functions



Relevant parameters

ARFCN list (CaArfcnList)

Related interfaces

--

ARFCN List

T AB L E 13 - ARFCN L I S T

Full name ARFCN List

Abbreviation --

3GPP Name --

3GPP reference

--

Description Selectable ARFCN list.

Management Object

TRX

Value Range Configured "Frequency hopping No. (FhsId)"

Unit None

Default Configured "Frequency hopping No. (FhsId)"

Relevant Functions

--

Relevant parameters

--

Related interfaces

--



Channel Information Parameters

Channel information interface is shown in Figure 2.

F I G U R E 2 - CH AN N E L I N F O R M AT I O N P AR AM E T E R S

Ts No.

T AB L E 14 - TS N O .

Full name Ts No.

Abbreviation --

3GPP Name --

3GPP reference

--

Description Number to identify timeslot.

Management Object

TRX

Value Range

When "TRX Type (TrxType)" is "Normal TRX", eight timeslot numbers are displayed on the interface, such as 1, 2, 3, 4, 5, 6, and 7;

When "TRX Type (TrxType)" is "Extended TRX", four timeslot numbers are displayed on the interface, such as 0, 2, 4, and 6;

Unit None



Default Same as value range

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

TsChannelComb

T AB L E 15 - TS C H AN N E L C O M B

Full name TsChannelComb

Abbreviation --

3GPP Name --

3GPP reference

--

Description

This parameter defines combined types of timeslot channel. Correlation with the following several parameters is as follows:

CBC supported (SmsCbUsed).

If "CBC Supported (SmsCbUsed)" is No, that is, CBC is not supported, the system automatically final all timeslot channel combinations in the cell.If CBC channel exists, it is changed to SDCCH.

If "CBC Supported (SmsCbUsed)" is Yes, that is, CBC is supported, the system automatically find all timeslot channel combinations in the cell.If a non-BCCH channel is found for a carrier, it is changed to SDCCH+CBCH.

GPRS service supported (PsSupport)

If "GPRS Supported (PsSupport)" is No, that is, GPRS is not supported, the system automatically change all timeslot channels whose type is PS in the cell to TCH.

Common control channel configuration (CcchConf)

When CCCH Channel (CcchConf) is configured as "a basic physical channel used by CCCH, along with SDCCH". In channel information parameters, timeslot 0 channel combination shall be one of these two combined channels: BCCH+SDCCH/4 and BCCH+SDCCH/4+CBCH.



When CCCH Channel (CcchConf) is configured as "a basic physical channel used by CCCH, regardless of SDCCH". In channel information parameters, timeslot 0 channel combination shall be one of these two combined channels: FCCH+SCH+BCCH+CCCH and BCCH+CCCH.

When CCCH Channel (CcchConf) is configured as "two basic physical channels used by CCCH, regardless of SDCCH". In channel information parameters, timeslot 0 and 2 channel combination shall be these two combined channels: FCCH+SCH+BCCH+CCCH and BCCH+CCCH.

When CCCH Channel (CcchConf) is configured as "three basic physical channels used by CCCH, regardless of SDCCH". In channel information parameters, timeslot 0, 2, and 4 channel combination shall be these two combined channels: FCCH+SCH+BCCH+CCCH and BCCH+CCCH.

When CCCH Channel (CcchConf) is configured as "four basic physical channels used by CCCH, regardless of SDCCH". In channel information parameters, timeslot 0, 2, and 4 channel combination shall be these two combined channels: FCCH+SCH+BCCH+CCCH and BCCH+CCCH.

Management Object

TRX



Value Range

TCH/F;

TCH/H (01)+FACCH/H (01)+SACCH/TH (01);

TCH/H ( 0, 0)+FACCH/H (0, 1)+SACCH/TH (0, 1)+TCH/H (0, 1);

SDCCH/8+SACCH/C8;

FCCH+SCH+BCCH+CCCH;

BCCH+SDCCH/4;

BCCH+CCCH;

BCCH+SDCCH/4+CBCH;

SDCCH+CBCH;

PBCCH+ PCCCH+PDTCH+PACCH+PTCCH;

PCCCH+PDTCH+PACCH+PTCCH;

PDTCH+PACCH+PTCCH;

Unit None

Default TCH/F

Relevant Functions

ZGF06-06-006 EDGE on BCCH-TRX Configurable

ZGF06-06-003 GPRS-only (without voice) Timeslots Configurable

ZGF06-06-005 Voice-only Timeslots Configurable

ZGF06-04-001 PBCCH, PPCH, PAGCH, PRACH

Relevant parameters

--

Related interfaces

--

TSC

T AB L E 16 - TSC

Full name TSC

Abbreviation TSC

3GPP Name TSC

3GPP reference

3GPP TS 45.002 V5.13.0

Description

This parameter represents Training Serial Code (TSC) of the timeslot. There are eight types of TSC, with low mutual dependency. It is used for reference of delay compensation for adaptive balance circuit at receiving side. For the timeslot where BCCH is, this parameter must be equal to BCC of the cell.



Management Object

TRX

Value Range 0, 1, 2, 3, 4, 5, 6, 7

Unit None

Default 0

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

MAIO

T AB L E 17 - MAIO

Full name MAIO

Abbreviation MAIO

3GPP Name Mobile Allocation Index Offset

3GPP reference

3GPP TS 44.018 V5.22.0

Description

During communication, the carrier number adopted on air interface is an element of the MA set. Mobile Allocation Index (MAI) (0 MAI n-1) is a variable for determining a definite element in the MA set. According to the FH algorithm in GSM 05.02 specification, MAI is function of the following aspects: TDMA Frame Number (FN) or Reduced TDMA Frame Number (RFN), frequency Hopping Serial Number (HSN), and Mobile Allocation Index Offset (MAIO). MAIO is an initial offset of MAI and is used for preventing several channels to contend for the same carrier at the same moment. Generally, several basic FH units (timeslot or TDMA frame) constitute an FH group. They have the same MA and HSN and the only difference among them is MAIO. Thus the same MA and HSN are put in FHS/MA table. When the FH group corresponding to the timeslot has no frequency hopping, MAIO of the timeslot is invalid.

Management Object

TRX

Value Range 0 ~ 63

Unit None

Default 0

Relevant Functions



ZGF05-12-003 Flexible MAIO Management



Relevant parameters

--

Related interfaces

--

Dynamic ts

T AB L E 18 - D Y N AM I C T S

Full name Dynamic ts

Abbreviation --

3GPP Name --

3GPP reference

--

Description YES: Representing dynamic timeslot; NO: Representing fixedly configured timeslot.

Management Object

TS1 number

Value Range Yes/No

Unit None

Default Yes

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Ps Service Preference property

T AB L E 19 - PS S E R V I C E P R E F E R E N C E P R O P E R T Y

Full name Ps Service Preference property

Abbreviation --

3GPP Name --

3GPP reference

--

Description Indicate whether to do channel packet service preference or the type to do service preference

Management Object

TRX

Value Range No preference, GPRS preference, EDGE preference, EDGE specialty

Unit None



Default No preference

Relevant Functions

ZGF06-10-001 Flexible Priority Handling of Packet Data Channel

Relevant parameters

--

Related interfaces

--

PDCH Priority

T AB L E 20 - PDCH P R I O R I T Y

Full name PDCH Priority

Abbreviation PDCHPrecedence

3GPP Name --

3GPP reference

--

Description This timeslot is used as PDTCH firstly. It only dynamically configure timeslot.

Management Object

TRX

Value Range Yes/No

Unit None

Default No

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

TSC

T AB L E 21 - TSC

Full name TSC

Abbreviation TSC

3GPP Name training sequence Code

3GPP reference

3GPP TS 45.002 V5.13.0

Description It is training serial code. TSC value in BCCH channel shall be same as BSS value.

Management Object

TRX



Value Range 0 ~ 7

Unit None

Default 0

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

PDCH

T AB L E 22 - PDCH

Full name PDCH

Abbreviation --

3GPP Name --

3GPP reference

--

Description It is same as the property of "PDCH Priority" parameter. It is only shortcut method, uniformly configuring 8 timeslots for carrier.

Management Object

TRX

Value Range Yes/No

Unit None

Default No

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

IP INFORMATION PARAMETERS

IP information interface is as shown in Figure 3.



F I G U R E 3 - IP I N F O R M AT I O N P AR AM E T E R S

Bipb Unit

T AB L E 23 - B I P B U N I T

Full name Bipb Unit

Abbreviation --

3GPP Name --

3GPP reference

--

Description It is corresponding with the board position in physical configuration

Management Object

TRX

Value Range Depends on the actual configuration of BIPB unit.

Unit None

Default Depends on the actual configuration.

Relevant Functions

--

Relevant parameters

--

Related interfaces

--



DspSunit

T AB L E 24 - D S P S U N I T

Full name DspSunit

Abbreviation --

3GPP Name --

3GPP reference

--

Description It corresponds to the DSP supporting IP in BIPB board configured by physical mode.

Management Object

TRX

Value Range Determined by user configured DSP quantity

Unit None

Default Minimum DSP number configured by user

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

DspMarkSeq

T AB L E 25 - D S P M AR K S E Q

Full name DspMarkSeq

Abbreviation --

3GPP Name --

3GPP reference

--

Description

Mark sequence of carrier on DSP, DSP channel number will be calculated based on this mark by service. If VTCD board, each DSP can mark (configure) up to 16 carriers; If VTCD/2 board, it can configure 28 carriers.

Management Object

--

Value Range 0 ~ 15 0 ~ 27 Unit None

Default 0

Relevant Functions

--



Relevant parameters

--

Related interfaces

--

PortNo

T AB L E 26 - PO R T N O

Full name PortNo

Abbreviation --

3GPP Name

3GPP reference

Description IP access. Port number shall be allocated for each carrier, and the number will be determined by the port actually configured.

Management Object

TRX

Value Range 1 ~ 3072

Unit None

Default 1

Relevant Functions

Relevant parameters

Related interfaces

--

Carrier Panel Parameters

Carrier panel parameters are as shown in Figure 4.



F I G U R E 4 - CAR R I E R P AN E L P AR AM E T E R S

Working Modes

T AB L E 27 - WO R K I N G M O D E S

Full name Working modes

Abbreviation --

3GPP Name --

3GPP reference

--

Description It describes working modes of carrier, including single or double carriers, which determines 4 lines of multiplexer is used or DPCT/DDT is used.

Management Object

BTS rack



Value Range

Under double carrier mode, no 4 lines of multiplexer, no DPCT or DDT configured;

Under single carrier mode, only 4 lines of multiplexer is configured;

Under single carrier mode, 4 lines of multiplexer + DPCT;

Under single carrier mode, 4 lines of multiplexer + DDT;

Under single carrier mode, no 4 lines of multiplexer, no DPCT or DDT configured;

Unit None

Default Under double carrier mode, no 4 lines of multiplexer, no DPCT or DDT configured;

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Delayed transmitting number

T AB L E 28 - D E L AY E D T R AN S M I T T I N G N U M B E R

Full name Delayed transmitting number

Abbreviation --

3GPP Name --

3GPP reference

--

Description

It defines the symbol used on delayed transmitting.

When parameter working mode is "under single carrier mode, 4 lines of multiplexer + DDT", this parameter is valid.

Management Object

BTS rack

Value Range 1 ~ 15

Unit None

Default 0

Relevant Functions

--

Relevant parameters

Working Modes

Related interfaces

--



Use IRC

T AB L E 29 - U S E IRC

Full name Use IRC

Abbreviation --

3GPP Name --

3GPP reference

--

Description

It determines whether to use IRC.

Not checked: don't use IRC

Checked: use IRC

Management Object

BTS rack

Value Range Not checked, checked

Unit None

Default Not checked

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Carrier support antenna jumping

T AB L E 30 - C AR R I E R S U P P O R T AN T E N N A J U M P I N G

Full name Carrier support antenna jumping

Abbreviation --

3GPP Name --

3GPP reference

--

Description

It describes whether the carrier supports antenna jumping. Only when working mode is double carrier mode, this parameter is valid.

No: indicates antenna jumping is not supported;

Yes: indicates antenna jumping is supported;

Management Object

Cell

Value Range Yes/No



Unit None

Default No

Relevant Functions

--

Relevant parameters

Working Modes

Related interfaces

--

Power Control Parameters

There are four sub-interfaces for basic power control. If the cell supports GPRS, there is another sub-interface GPRS Power Control.

Power control

The interface of power control parameters is shown in Figure 5.

F I G U R E 5 - P O W E R C O N T R O L P AR AM E T E R S



Uplink rapid power control indication (UlRapidPcInd)

T AB L E 31 - U P L I N K R AP I D P O W E R C O N T R O L I N D I C AT I O N

Full name Uplink rapid power control indication

Abbreviation UIRapidPcInd

3GPP Name --

3GPP reference

--

Description

This parameter determines the availability of the rapid power control process. Rapid power control process is an optional process of BSC. It reduces the interference of the whole BSS radio system and satisfies the dynamic power control requirement for rapid moving MS.

The power control range in each rapid power control process is not a fixed value but an integral multiple of the power control step size (increment or decrement). This parameter determines the availability of the rapid power control process.

Management Object

Cell

Value Range Yes/No

Unit None

Default No

Relevant Functions

ZGF05-07-002 Dynamic MS Power Control

Relevant parameters

--

Related interfaces

--

Downlink rapid power control indication (DlRapidPcInd)

T AB L E 32 - D O W N L I N K R AP I D P O W E R C O N T R O L I N D I C AT I O N

Full name Downlink rapid power control indication

Abbreviation DIRapidPcInd

3GPP Name --

3GPP reference

--



Description

This parameter determines the availability of the rapid power control process. Rapid power control process is an optional process of BSC. It reduces the interference of the whole BSS radio system and satisfies the dynamic power control requirement for rapid moving MS.

The power control range in each rapid power control process is not a fixed value but an integral multiple of the power control step size (increment or decrement). This parameter determines the availability of the rapid power control process.

Management Object

Cell

Value Range Yes/No

Unit None

Default No

Relevant Functions

ZGF05-07-001 Dynamic BTS Power Control

Relevant parameters

--

Related interfaces

--

Power control PwrDecrLimit

T AB L E 33 - PO W E R C O N T R O L P W R D E C R L I M I T

Full name Power control PwrDecrLimit

Abbreviation --

3GPP Name --

3GPP reference

--

Description

This parameter is set for preventing MS from call drop due to fast power control. It corresponds to different quality level. For example, PwrDecrLimit [0] determines the maximum power decrease limit for calls with receiving quality level 0 (Bit Error rate (BER)



Default [24, 22, 20, 18, 16, 14, 12, 10]

Relevant Functions


Relevant parameters

--

Related interfaces

--

Power Survey

The interface of power measurement parameters is shown in Figure 6.

F I G U R E 6 - P O W E R M E AS U R E M E N T P AR AM E T E R S

Report period of measurement for power control (PwrCtrlReportPrd, SACCH double frame)

T AB L E 34 - R E P O R T P E R I O D O F M E AS U R E M E N T F O R P O W E R C O N T R O L

Full name Report period of measurement for power control

Abbreviation PwrCtrlReportPrd

3GPP Name --

3GPP reference

--

Description

Power control is performed at BTS side and BSC implements relevant performance statistics. BTS uses this parameter to decide the periodicity to send the preprocessed power measurement to BSC as an input for power control analysis. This parameter is in the unit of SACCH double frame.

Management Object

Cell

Value Range 1 ~ 254



Unit SACCH multiframe

Default 240

Relevant Functions


Relevant parameters

--

Related interfaces

--

Uplink power level Sample count (PcUlLevWindow)

T AB L E 35 - U P L I N K P O W E R L E V E L

Full name Uplink power level

Abbreviation PcUlLevWindow

3GPP Name --

3GPP reference

--

Description

In GSM system, BSC determines whether to perform power control according to measurement data. BSC uses the average value of measurement data to avoid adverse influences caused by abrupt changes in measurement data due to complex radio transmission.

BTS uses this parameter to calculate the window size for the average value of uplink signal strength, i.e. to calculate the average value of the number of used samples.

Management Object

Cell

Value Range 1 ~ 31

Unit None

Default 6

Relevant Functions


Relevant parameters

--

Related interfaces

--

Uplink level Weight (PcUlLevWeight)

T AB L E 36 - U P L I N K L E V E L W E I G H T

Full name Uplink level Weight



Abbreviation PcUlLevWeight

3GPP Name --

3GPP reference

--

Description

Speech data is unavailable for silent period during conversation. GSM specifications recommend Discontinuous Transmission Mode (DTX) to control optimal usage of network resources during such silent periods.

BTS reports two types of measurement data to BSC when using DTX mode. One is the average value of measurement results of all timeslots within a measurement period in non-DTX mode. The other is the average value of measurement results of some specific timeslots within a measurement period in DTX mode. BSC selects one type of measurement data according to the actual situation for calculating the average value.

The first type of measurement data is more accurate since it is the average value of measurement results of all timeslots. The second type of measurement data is less accurate since it is the average value of measurement results of some timeslots. Thus BSC should use different weights for the two types of data when averaging the measurement results.

This parameter determines the weight for the first type of measurement data when averaging uplink signal strength for power control. Weight for the second type of measurement data is set to 1 by default.

Management Object

Cell

Value Range 1 ~ 3

Unit None

Default 2

Relevant Functions


Relevant parameters

--

Related interfaces

--

Downlink power level Sample count (PcdlLevWindow)

T AB L E 37 - D O W N L I N K P O W E R L E V E L

Full name Downlink power level

Abbreviation PcdlLevWindow



3GPP Name --

3GPP reference

--

Description


BTS uses this parameter to calculate the window size for the average value of downlink signal strength, i.e. to calculate the average value of the number of used samples.

Management Object

Cell

Value Range 1 ~ 31

Unit None

Default 6

Relevant Functions


Relevant parameters

--

Related interfaces

--

Downlink level Weight (PcdlLevWeight)

T AB L E 38 - D O W N L I N K L E V E L W E I G H T

Full name Downlink level Weight

Abbreviation PcdlLevWeight

3GPP Name --

3GPP reference

--



Description




This parameter determines the weight for the first type of measurement data when averaging downlink signal strength for power control. Weight for the second type of measurement data is set to 1 by default.

Management Object

Cell

Value Range 1 ~ 3

Unit None

Default 2

Relevant Functions


Relevant parameters

--

Related interfaces

--

Uplink quality level (PcUlIQualWindow)

T AB L E 39 - U P L I N K Q U AL I T Y L E V E L

Full name Uplink quality level

Abbreviation PcUlIQualWindow

3GPP Name --

3GPP reference

--



Description


BTS uses this parameter to calculate the window size for the average value of uplink signal quality, i.e. to calculate the average value of the number of used samples.

Management Object

Cell

Value Range 1 ~ 31

Unit None

Default 6

Relevant Functions


Relevant parameters

--

Related interfaces

--

Uplink quality Weight (PcUlIQualWeight)

T AB L E 40 - U P L I N K Q U AL I T Y W E I G H T

Full name Uplink quality Weight

Abbreviation PcUlIQualWeight

3GPP Name --

3GPP reference

--



Description




This parameter determines the weight for the first type of measurement data when averaging uplink signal quality for power control. Weight for the second type of measurement data is set to 1 by default.

Management Object

Cell

Value Range 1 ~ 3

Unit None

Default 2

Relevant Functions


Relevant parameters

--

Related interfaces

--

Downlink quality level (PcDlIQualWindow)

T AB L E 41 - D O W N L I N K Q U AL I T Y L E V E L

Full name Downlink quality level

Abbreviation PcDlIQualWindow

3GPP Name --

3GPP reference

--



Description


BTS uses this parameter to calculate the window size for the average value of downlink signal quality, i.e. to calculate the average value of the number of used samples.

Management Object

Cell

Value Range 1 ~ 31

Unit None

Default 6

Relevant Functions


Relevant parameters

--

Related interfaces

--

Downlink quality Weight (PcDlIQualWeight)

T AB L E 42 - D O W N L I N K Q U AL I T Y W E I G H T

Full name Downlink quality Weight

Abbreviation PcDlIQualWeight

3GPP Name --

3GPP reference

--



Description




This parameter determines the weight for the first type of measurement data when averaging downlink signal quality for power control. Weight for the second type of measurement data is set to 1 by default.

Management Object

Cell

Value Range 1 ~ 3

Unit None

Default 2

Relevant Functions


Relevant parameters

--

Related interfaces

--

Power Adjust Threshold

The interface of power adjust threshold parameters is shown in Figure 7.



F I G U R E 7 - PO W E R AD J U S T TH R E S H O L D PAR AM E T E R S

Increase uplink level Threshold (PCULINCLLEVTHSThs), Value P (PCULINCLLEVTHSP), and Value N (PCULINCLLEVTHSN)

T AB L E 43 - I N C R E AS E U P L I N K L E V E L TH R E S H O L D , V AL U E P , AN D V AL U E N

Full name Increase uplink level Threshold, Value P, and Value N

Abbreviation PCULINCLLEVTHSThs/PCULINCLLEVTHSP/PCULINCLLEVTHSN

3GPP Name --



3GPP reference

3GPP TS 45.008 V5.22.0

Description

According to GSM specifications, power control decisions depend upon received average value series of uplink signal strength. Uplink receiving intensity is one of the factors which may lead to MS (uplink) power increase. The decision process is as follows: If P out of N recent uplink signal strength averages are less than the related threshold, transmission power of MS (uplink) should be increased, because the uplink signals are too weak.

Management Object

Cell

Value Range Increase uplink level can be divided into four kinds: FR, HR, AMR FR, and AMR HR.

Threshold: 0 ~ 63; Value P: 1 ~ 31; Value N: 1 ~ 31

Unit None

Default [22, 3, 4]

Relevant Functions


ZGF05-17-009 AMR Power Control

Relevant parameters

--

Related interfaces

--

Increase downlink level Threshold (PCDLINCLLEVTHSThs), Value P (PCDLINCLLEVTHSP), and Value N (PCDLINCLLEVTHSN)

T AB L E 44 - I N C R E AS E D O W N L I N K L E V E L TH R E S H O L D , VAL U E P , AN D V AL U E N

Full name Increase downlink level Threshold, Value P, and Value N

Abbreviation PCDLINCLLEVTHSThs/PCDLINCLLEVTHSP/PCDLINCLLEVTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description

According to GSM specifications, power control decisions depend upon received average value series of uplink signal strength.

The decision process is as follows: For the latest N average values of downlink signal strength, if P of the N values fall below relevant threshold value, increase BTS (downlink) transmission power to improve the downlink signal quality.

Management Object

Cell

Value Range Increase downlink level can be divided into four kinds: FR, HR, AMR FR, and AMR HR.




Unit None

Default [26, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--

Decrease uplink level Threshold (PCULREDLEVTHSThs), Value P (PCULREDLEVTHSP), and Value N (PCULREDLEVTHSN)

T AB L E 45 - D E C R E AS E U P L I N K L E V E L TH R E S H O L D , V AL U E P , AN D V A L U E N

Full name Decrease uplink level Threshold, Value P, and Value N

Abbreviation PCULREDLEVTHSThs/PCULREDLEVTHSP/PCULREDLEVTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description


The decision process is as follows: For the latest N average values of uplink signal strength, if P of the N values rise above relevant threshold value, reduce MS (uplink) transmission power to improve the uplink signal strength.

Management Object

Cell

Value Range Decrease uplink level can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [30, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--

Decrease downlink level Threshold (PCDLREDLEVTHSThs), Value P



(PCDLREDLEVTHSP), and Value N (PCDLREDLEVTHSN)

T AB L E 46 - D E C R E AS E D O W N L I N K L E V E L TH R E S H O L D , V AL U E P , AN D V AL U E N

Full name Decrease downlink level Threshold, Value P, and Value N

Abbreviation PCDLREDLEVTHSThs/PCDLREDLEVTHSP/PCDLREDLEVTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description


The decision process is as follows: For the latest N average values of downlink signal strength, if P of the N values rise above relevant threshold value, reduce BTS (downlink) transmission power to improve the downlink signal strength.

Management Object

Cell

Value Range Decrease downlink level can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [34, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--

Increase uplink quality Threshold (PCULINCLQUALTHSThs), Value P (PCULINCLQUALTHSP), and Value N (PCULINCLQUALTHSN)

T AB L E 47 - I N C R E AS E U P L I N K Q U AL I T Y TH R E S H O L D , V AL U E P , AN D V AL U E N

Full name Increase uplink quality Threshold, Value P, and Value N

Abbreviation PCULINCLQUALTHSThs/PCULINCLQUALTHSP/PCULINCLQUALTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0



Description


The decision process is as follows: For the latest N average values of uplink signal quality, if P of the N values rise above relevant threshold value, increase MS (uplink) transmission power to improve the uplink signal quality.

Management Object

Cell

Value Range Increase uplink quality can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [2, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--

Increase downlink quality Threshold (PCDLINCLQUALTHSThs), Value P (PCDLINCLQUALTHSP), and Value N (PCDLINCLQUALTHSN)

T AB L E 48 - I N C R E AS E D O W N L I N K Q U AL I T Y TH R E S H O L D , V AL U E P , AN D V AL U E N

Full name Increase downlink quality Threshold, Value P, and Value N

Abbreviation PCDLINCLQUALTHSThs/PCDLINCLQUALTHSP/PCDLINCLQUALTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description


The decision process is as follows: For the latest N average values of downlink signal quality, if P of the N values rise above relevant threshold value, increase BTS (downlink) transmission power to improve the downlink signal quality.

Management Object

Cell

Value Range Increase downlink quality can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [2, 3, 4]



Relevant Functions



Relevant parameters

--

Related interfaces

--

Decrease uplink quality Threshold (PCULREDQUALTHSThs), Value P (PCULREDQUALTHSP), and Value N (PCULREDQUALTHSN)

T AB L E 49 - D E C R E AS E U P L I N K Q U AL I T Y T H R E S H O L D , VAL U E P , AN D V AL U E N

Full name Decrease uplink quality Threshold, Value P, and Value N

Abbreviation PCULREDQUALTHSThs/PCULREDQUALTHSP/PCULREDQUALTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description


The decision process is as follows: For the latest N average values of uplink signal quality, if P of the N values fall below relevant threshold value, reduce MS (uplink) transmission power to improve the uplink signal quality.

Management Object

Cell

Value Range Decrease uplink quality can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [0, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--



Decrease downlink quality Threshold (PCDLREDQUALTHSThs), Value P (PCDLREDQUALTHSP), and Value N (PCDLREDQUALTHSN)

T AB L E 50 - D E C R E AS E D O W N L I N K Q U AL I T Y TH R E S H O L D, V AL U E P , AN D V AL U E N

Full name Decrease downlink quality Threshold, Value P, and Value N

Abbreviation PCDLREDQUALTHSThs/PCDLREDQUALTHSP/PCDLREDQUALTHSN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0

Description


The decision process is as follows: For the latest N average values of downlink signal quality, if P of the N values fall below relevant threshold value, reduce BTS (downlink) transmission power to improve the downlink signal quality.

Management Object

Cell

Value Range Decrease downlink quality can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default [0, 3, 4]

Relevant Functions



Relevant parameters

--

Related interfaces

--

Others

The interface of the other parameters is shown in Figure 8 .



F I G U R E 8 OT H E R P AR AM E T E R S

FR Power increasing step (db) (PWRINCSTEP_0)

T AB L E 51 - FR P O W E R I N C R E AS I N G S T E P (D B )

Full name This parameter defines FR Power increasing step.

Abbreviation PWRINCSTEP

3GPP Name Pow_Incr_Step

3GPP reference

3GPP TS 45.008 V5.22.0

Description It describes increase step, the value of each power control variation. It applies to both uplink and downlink directions.

Management Object

Cell

Value Range Power increase step can be divided into four kinds: FR, HR, AMR FR, and AMR HR.

Value range is 2, 4, and 6.

Unit dB

Default It can be divided into four kinds: FR, HR, AMR FR, and AMR HR. 2 by default.

Relevant Functions



Relevant parameters

--

Related interfaces

--



FR Power decreasing step (db) (PWRREDSTEP_0)

T AB L E 52 - FR P O W E R D E C R E AS I N G S T E P

Full name FR Power decreasing step.

Abbreviation PWRREDSTEP

3GPP Name Pow_Red_Step

3GPP reference

3GPP TS 45.008 V5.22.0

Description It describes decrease step, the value of each power control variation. It applies to both uplink and downlink directions.

Management Object

Cell

Value Range Power decrease step can be divided into four kinds: FR, HR, AMR FR, and AMR HR.

Value range is 2 and 4.

Unit dB


Relevant Functions



Relevant parameters

--

Related interfaces

--

Uplink power control allowed (PwrControlUl)

T AB L E 53 - U P L I N K P O W E R C O N T R O L AL L O W E D

Full name Uplink power control

Abbreviation PwrControlUl

3GPP Name --

3GPP reference

--

Description This parameter determines to enable or disable MS uplink power control in the cell. This power control is only effective to TCH/F.

Management Object

Cell

Value Range Yes/No

Unit None



Default Yes

Relevant Functions



Relevant parameters

--

Related interfaces

--

Downlink power control allowed (PwrControlDl)

T AB L E 54 - D O W N L I N K P O W E R C O N T R O L AL L O W E D

Full name Downlink power control

Abbreviation PwrControlDl

3GPP Name --

3GPP reference

--

Description This parameter determines whether to enable or disable BTS downlink power control in the cell.

Management Object

Cell

Value Range Yes/No

Unit None

Default No

Relevant Functions



Relevant parameters

--

Related interfaces

--

MAX power level of MS (MSTXPWRMAX)

T AB L E 55 - MAX P O W E R L E V E L O F MS

Full name MS Max. TxPwr

Abbreviation MSTXPWRMAX

3GPP Name MS_TXPWR_MAX

3GPP reference

3GPP TS 45.008 V5.22.0



Description

In the communication between MS and BTS, the transmission power is controlled by the network. The network sets the power of MS by power command, which is transmitted on SACCH (SACCH carries the power command with 2-header bytes information, one is power control byte and the other one is timing advance byte).

MS sets the specified output transmission power according to the power control header extracted from the SACCH. MS uses the nearest possible output power even if the power command sends maximum output power. During BSC power control, this parameter determines the maximum transmission power available for MS in the cell. BSC also uses it to calculate PBGT value.

Management Object

Cell

Value Range MAX power level of MS can be divided into four kinds: FR, HR, AMR FR, and AMR HR.

Value range is 0 ~ 31.

Unit None

Default It can be divided into four kinds: FR, HR, AMR FR, and AMR HR. Default value is 0, 5, 0, 0.

Relevant Functions



Relevant parameters

--

Related interfaces

--

MIN power level of MS (MSTXPWRMIN)

T AB L E 56 - MIN P O W E R L E V E L O F MS

Full name MS Min. TxPwr

Abbreviation MSTXPWRMIN

3GPP Name --

3GPP reference

3GPP TS 45.008 V5.22.0



Full name MS Min. TxPwr

Abbreviation MSTXPWRMIN

Description

In the communication between MS and BTS, the transmission power is controlled by the network. The network sets the power of MS by power command, which is transmitted on SACCH (SACCH carries the power command with 2-header bytes information, one is power control byte and the other one is timing advance byte).

MS sets the specified output transmission power according to the power control header extracted from the SACCH. MS uses the nearest possible output power even if the power command sends maximum output power. During BSC power control, this parameter determines the minimum transmission power (that is, lower limit of power control) available for MS in the cell.

Management Object

Cell

Value Range MIN power level of MS can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit None

Default It can be divided into four kinds: FR, HR, AMR FR, and AMR HR. Default value is 0, 16, 0, 11.

Relevant Functions



Relevant parameters

--

Related interfaces

--

MIN power level of BS (BSTXPWRMIN)

T AB L E 57 - MIN P O W E R L E V E L O F BS

Full name BS Min. TxPwr

Abbreviation BSTXPWRMIN

3GPP Name --

3GPP reference

--



Description

This parameter controls the transmission power during communication between MS and BTS. SACCH carries the command with 2 header bytes information (power control byte and timing advance byte) from BSC to BTS. During BSC control, this parameter determines the minimum transmission power (that is, lower limit of power control) available for BTS in the cell.

Management Object

Cell

Value Range

MIN power level of BS can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


The maximum power level of BTS is Pn.

0: Pn;

1: Pn-2 dB;

15: Pn-30 dB

Unit None


Relevant Functions



Relevant parameters

--

Related interfaces

--

MIN interval of power control (PCMININTERVAL)

T AB L E 58 - MIN I N T E R V AL O F P O W E R C O N T R O L

Full name MIN interval of power control

Abbreviation PCMININTERVAL

3GPP Name --

3GPP reference

--

Description

This parameter specifies the minimum interval of power control. Usually, MS still sends two measurement reports with the original power to BSC after enabling the power control. Signal level information contained in the reports is inaccurate and can be ignored (information such as adjacent cell information is still valid). Thus a minimum interval of power control is needed and signal level information during the interval can be ignored.



Management Object

Cell

Value Range MIN interval of power control can be divided into four kinds: FR, HR, AMR FR, and AMR HR.


Unit SACCH multiframe


Relevant Functions




Relevant parameters

--

Related interfaces

--

GPRS Power Control

The interface of GPRS power control parameters is shown in Figure 9.

F I G U R E 9 - GPRS P O W E R C O N T R O L P AR AM E T E R S



Expected signal intensity of MS (SS_BTS)

T AB L E 59 RE C E I V E P O W E R S T R E N G T H F R O M MS NE E D E D

Full name Receive Power Strength from MS Needed

Abbreviation SS_BTS

3GPP Name SSb

3GPP reference

3GPP TS 45.008 V5.22.0

Description

This parameter is used to control open loop uplink power control. MS uses CH parameter for calculating uplink transmission power, based on the following formula:

CH = 0 PBTS -SSb 48 This parameter decides the SSb parameter.

Management Object

Cell

Value Range

0 ~ 63

0: -110 dBm;

1: -109 dBm;

63: -47 dBm

Unit None

Default 1

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Uplink power control strategy (UlPwCtrl)

T AB L E 60 - U P L I N K P O W E R C O N T R O L S T R AT E G Y

Full name Uplink Power Control Policy

Abbreviation UlPwCtrl

3GPP Name --

3GPP reference

--

Description

This parameter determines GPRS uplink power control strategy, including the following four modes: uncontrolled, open-loop control, close-loop control, based on quality control.



Management Object

Cell

Value Range No control, Open-loop control, Close-loop control, Control based on quality

Unit None

Default No control

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Downlink power control strategy (DiPwCtrl)

T AB L E 61 - D O W N L I N K P O W E R C O N T R O L S T R AT E G Y

Full name Downlink Power Control policy

Abbreviation DlPwCtrl

3GPP Name --

3GPP reference

--

Description

This parameter determines GPRS downlink power control strategy, including the following four modes: uncontrolled, open-loop control, close-loop control, based on quality control.

Management Object

Cell

Value Range No control, Open-loop control, Close-loop control, Control based on quality

Unit None

Default No control

Relevant Functions

--

Relevant parameters

--

Related interfaces

--

Downlink power control mode (PwCtrlMode)

T AB L E 62 - D O W N L I N K P O W E R C O N T R O L M O D E

Full name Downlink Power Control Mode

Abbreviation PwCtrlMode



3GPP Name BTS_PWR_CTRL_MODE

3GPP reference

3GPP TS 45.008 V5.22.0

Description

This parameter determines the BTS downlink power control mode. BTS has two power control modes: A and B. Mode A can be used for any assignment mode and mode B can only be used for fixed assignment mode.

Management Object

Cell

Value Range A, B

Unit None

Default A

Relevant Functions

--

Relevant parameters

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Power control level (PwCtrlLev)

T AB L E 63 - PO W E R C O N T R O L LE V E L

Full name Power Control Level

Abbreviation PwCtrlLev

3GPP Name Power control level

3GPP reference

3GPP TS 45.008 V5.22.0

Description

This parameter determines GPRS power control precision, which describes nominal output power and power control precision (dB) sent by MS under each power control level.

Management Object

Cell

Value Range 0 ~ 31

Unit None

Default 0

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Power descending of PDCH to BCCH in A mode (P0)

T AB L E 64 - PO W E R D E S C E N D I N G O F PDCH T O BCCH I N A M O D E

Full name Power descending of PDCH to BCCH in A mode

Abbreviation P0

3GPP Name P0

3GPP reference

3GPP TS 45.008 V5.22.0

Description

This parameter is an optional downlink power control parameter contained in assignment message. MS uses power control if this parameter exists. During the packet transmission mode, P0 value shall not be changed unless re-assignment or new assignment is established and the assignment does not contain the PDCH(s) of any previous assignment.

Management Object

Cell

Value Range

0 ~ 15

0: P0=0 dB;

1: P0=2 dB;

15: P0=30 dB

Unit None

Default 0

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Handover Control Parameters There are seven sub-interfaces for handover control.



Handover Pretreatment

The interface of handover protreatment parameters is shown in Figure 10.

F I G U R E 10 - HA N D O V E R P R E T R E AT M E N T PAR AM E T E R S

Number of zero allowed in AV (ZeroAllowed)

T AB L E 65 - N U M B E R O F Z E R O AL L O W E D I N AV

Full name Number of zero allowed in AV

Abbreviation ZeroAllowed

3GPP Name --

3GPP reference

--



Description

According to GSM specifications, MS can report to BSS the measurement data of at most six adjacent cells with strongest signal strength. Thus the measurement results might not be consecutive. For cells whose signal strength is less than -110 dBm, the measurement data are not reported. BSC marks measurement data of such adjacent cells as zero.

This parameter gives flexibility in measurement data averaging. However, excessive occurrences of zero indicate that the adjacent cells are of poor signal strength.

If the number of zeroes in used for average calculation exceeds Number of zero allowed in AV, then measurement average equals to sum of reported values divided by Neighboring cell .

If the number of zeroes in used for average calculation does not exceed Number of zero allowed in AV, then the measurement average equals to sum of reported values divided by (Neighboring cell - number of zeroes)

Management Object

Cell

Value Range 0 ~ 31

Unit None

Default 1

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Uplink power level (HoUlLevWindow)

T AB L E 66 - U P L I N K P O W E R L E V E L

Full name Uplink power level

Abbreviation HoUlLevWindow

3GPP Name N1..N8,P1..P8

3GPP reference

3GPP TS 45.008 V5.22.0



Description

In GSM system, BSC uses the power level measurement data to manage and control handover decisions. BSC uses average values instead of original values of measurement data for handover decisions. It helps prevent negative impact on network performance caused by abrupt changes in measurement data.

This parameter is the window size (number of sample values) used to calculate average value of uplink signal intensity.

Management Object

Cell

Value Range 1 ~ 31

Unit None

Default 4

Relevant Functions

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Uplink level Weight (HoUlLevWeight)

T AB L E 67 - U P L I N K L E V E L W E I G H T

Full name Uplink level Weight

Abbreviation HoUlLevWeight

3GPP Name --

3GPP reference

--



Description




This parameter determines the weight for the first type of measurement data when averaging uplink signal strength for handover. Weight for the second type of measurement data is set to 1 by default.

Management Object

Cell

Value Range 1 ~ 3

Unit None

Default 2

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Downlink power level (HoDlLevWindow)

T AB L E 68 - D O W N L I N K P O W E R L E V E L

Full name Downlink power level

Abbreviation HoDlLevWindow

3GPP N

Documents

Radio Parameters Manual (Volume II) ZTE 2G.pdf