HUAWEI EQUIPMENT INSTALLATION

CMPA CMTRTXF TX MRO MRI DRI CMPA CMTR TXF TX MRO MRI DRI CMPA CMTR TXF TX MRO MRI DRI Sample RF_in Sample RF_in Sample RF_in Sample RF_in Sample RF_in Sample RF_in RF_out 2.2 Hybrid Conf

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Prepared by: Dong Qiufeng Date: 2005-05-20

Huawei Technologies Co., Ltd

All rights reversed

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Revision Record

Date Revision version Description Author

finished

Dong Qiufeng

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Table of Content

Chapter 1 Overview 2

Chapter 2 Installation 5

2.1 Cable Connection of Typical Configurations 5

2.1.1 Configuration of Single Carrier O(1), Multi-Carrier O(2), and Multi-Carrier O(3) 5

2.1.2 Configuration of Multi-Carrier O(4), Multi-Carrier O(5), and Multi-carrier O(6) 6

2.1.3 Configuration of Single-Carrier S(1/1/1), Multi-Carrier S(2/2/2) and Multi-Carrier S(3/3/3) 6

2.1.4 Configuration of Multi-Carrier S(4/4/4), Multi-Carrier S(5/5/5) and Multi-Carrier S(6/6/6) 7

2.2 Hybrid Configuration of Single Carrier and Multi-Carrier 8

2.2.1 Hybrid Configuration of the CTRM and CMTR 8

2.2.2 Hybrid Configuration of the HPA and TRM 9

Chapter 3 Hardware and Software Configuration of Multi-carrier 10

3.1 Software Configuration 10

3.2 Hardware Configuration 10

Chapter 4 Configuration of Multi-Carrier BTS 11

4.1 Key Points of Data Configuration 11

4.1.1 Resource Pool 11

4.1.2 TRM Configuration 11

4.1.3 Combined Cabinet Configuration 11

4.2 Configuration Examples (Configuration of Key Point) 12

4.2.1 O1 Configuration 12

4.2.5 S111 Configuration 15

Chapter 5 Features of Multi-Carrier Power 23

5.1 Allocation of Multi-Carrier Power 23

5.2 CMPA Overdrive Threshold 23

5.3 Multi-Carrier Power Tracing 24

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Chapter 6 Multi-Carrier BTS Calibration 26

Chapter 7 Limitation on Multi-Carrier System 27

7.1 One Cell of Multi-Carrier BTS 27

7.2 Multi-channel Carrier Board 27

Chapter 8 Fault Location 28

8.1 Forward Power Abnormal 28

8.2 Reverse Channel Abnormal 28

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Guide to Multi-Carrier CDMA2000 BTS3606

Key words: 3606, multi-carrier, CMTR, CTRM, CHPA, CMPA

Abstract: This guide describes the development and maintenance personnel to use

multi-carrier cBTS3606

Abbreviations:

Abbreviations Full spelling

CMTR Compact-BTS Multi-carrier Transceiver Module

CMPA Compact-BTS Multi-carrier Power Amplifier

Reference

Manual of 31161592-bts3606&3606a Data Configuration (V2.12)

Installation Manual of 31041702-bts3606&3606a BTS Installation Reference (V2.12)

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Chapter 1 Overview

The Multi-carrier cBTS3606 is developed to expand the capacity and improve theflexibility of the CDMA This chapter introduces the new function of multi-carriercBTS3606 It enables the operator to add the number of sector carriers only byupgrading software and modifying configuration (no need to add hardware for a singlecabinet) Thus, the capacity is expanded

The TRM (CMTR) of each multi-carrier supports three carriers (three different channelnumbers at the same band class) at most That is, CBTS3606 supports three timescapacity of the original multi-carrier at most and supports CDMA2000 1X andcdma2000 1xEV-DO

The single cabinet of the CBTS3606 with the full configuration S (6/6/6) supports 18sector carriers at most

shows the cabinet of multi-carrier cBTS3606

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Figure 1.1 Cabinet of multi-carrier cBTS3606

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Chapter 2 Installation

This chapter describes how to install the multi-carrier cBTS3606

2.1 Cable Connection of Typical Configurations

This section describes cables connection of some typical configurations

2.1.1 Configuration of Single Carrier O(1), Carrier O(2), and

Multi-Carrier O(3)

Figure 1.1 shows the configuration of the RF cable of the single carrier O(1),

multi-carrier O(2), and multi-multi-carrier O(3)

The cable connection of the previous three configurations is the same; however, they

are different only in setting the software parameters

RF_out

Sample

CMPA

RX 1

CDDU

CMTR

TXF TX MRO

MR I

DR I

RF_in

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2.1.2 Configuration of Multi-Carrier O(4), Multi-Carrier O(5), and Multi-carrier O(6)

Figure 1.1 shows the configuration of the RF cable of the carrier O(4), carrier O(5), and multi-carrier O(6)

multi-The cable connection of the previous three configurations is the same; however, theyare different only in setting the software parameters

CMPA CMTR

TXF TX MRO MRI DRI

Sample RF_in

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CMPA CMTR

TXF TX MRO MRI DRI

CMPA CMTR

TXF TX MRO MRI DRI

CMPA CMTR

TXF TX MRO MRI DRI

Sample RF_in

Sample

RF_in

Sample RF_in

Sample

RF_in Sample

RF_in RF_out

2.2 Hybrid Configuration of Single Carrier and Multi-Carrier

The hybrid configuration of single carrier and multi-carrier helps when handover oremergency occurs The hybrid configuration of single carrier and multi-carrierindicates:

 Both the TRM (CTRM) of single carrier and carrier can be used in carrier cabinet The TRM (CTRM) of single carrier is only configured with theCHPA of single carrier and the TRM (CTRM) of multi-carrier is only configuredwith the CMPA of multi-carrier

multi- The TRM (CTRM) of single carrier is configured with the CMPA of multi-carrier orthe TRM (CMTR) of multi-carrier is configured with the CHPA of single carrier in

a multi-carrier cabinet

2.2.1 Hybrid Configuration of the CTRM and CMTR

The CTRM can be configured with the CMTR If the two boards that connect to theCDDU are

 Both CTRMs, the sector supports two carriers at most

 One CTRM and one CMTR, the sector supports four carriers at most

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 Both CMTRs, the sector supports six carriers at most.

2.2.2 Hybrid Configuration of the HPA and TRM

The CTRM can be configured with the CMPA

If the CMTR is configured with the CHPA, one carrier is supported (this method is notrecommended) This carrier must be provided by the CCPM/CECM 0 andCCPM/CECM 1

In all, if the type of TRM and HPA do not match each other, the TRM can only supportone carrier

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Chapter 3 Hardware and Software Configuration

The requirements for the hardware are as follows:

 The BTS3606 multi-carrier cabinet with six CCPM slots support multi-carrier TheBTS3606 single-carrier cabinet with four CCPM slots do not support multi-carrier.Currently, only a few BTS3606 cabinets with four CCPM slots are used

 ODU3601C does not support multi-carrier

 For hardware configuration of other boards, see the version configuration table ofeach product

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Chapter 4 Configuration of Multi-Carrier BTS

This chapter describes how to configure the multi-carrier BTS

4.1 Key Points of Data Configuration

This section describes the key points of data configuration

4.1.1 Resource Pool

Multi-carrier BTS supports resource pool Two CCPMs are configured in eachresource pool at most The resource pool is composed of the upper and lowerCCPMs

If two CCPMs are in the resource pool, this resource pool only supports the TRM inone RF subrack Carriers provided by the resource pool are as follows:

 The resource pool composed of CCPM 0/CCPM 1 provides the first carrier to allthe TRMs of the corresponding RF subrack

 The resource pool composed of CCPM 2/CCPM 3 provides the second carrier toall the TRMs of the corresponding RF subrack

 The resource pool composed of CCPM 4/CCPM 5 provides the third carrier to allthe TRMs of the corresponding RF subrack

4.1.2 TRM Configuration

To configure a TRM, the following items are included:

 Configuring the physical TRM

 Specifying the sector carrier on certain carrier of the TRM Use the parameter[TRM, CPLID] to identify this carrier

4.1.3 Combined Cabinet Configuration

The combined cabinet is used to support multiple band classes in one BTS If theparameter EXTFIBPN is specified in CCPM configuration, the combined cabinet isconfigured

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 The channel unit connected to the LECM is configured in the lower part of themain cabinet (slot1, slot3, and slot 5).

 The LECM is consistent with the channel unit slot connected to the LECM Themapping is as follows:

Slot 0: channel unit 1

 The channel unit used for the combined cabinet cannot be used for the TRM orODU of the main cabinet, and do not support the daisy chain

4.2 Configuration Examples (Configuration of Key Point)

The following describes how to configure the key points of the multi-carrier BTS withthe software of the CBTS3606 V200R001C04 as an example

The O1 configuration includes three parts:

 To configure the channel unit, execute the following command

ADD CBTSCCPM:BTSID=1,BRDID=0,CPLID=0;

 To configure the TRM, execute the following command

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4.2.2 O3 Configuration

 To configure the channel unit, execute the following commands

 To configure the TRM, execute the following command

ADD

CBTSSECTORCARRIER:BTSID=1,LOCALCELLID=6,LOCALSECTORID=0,CRRID=2,TRMID=1,CPLID=2;

 To configure the resource channel, execute the following commands

 To configure the TRM, execute the following commands

ADD

CBTSTRM:BTSID=1,TRMID=0,RCKTP=MASTER,SN=0,DUPSN=0,TRMDES=”CMT

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ADD

CBTSTRM:BTSID=1,TRMID=0,RCKTP=MASTER,SN=0,DUPSN=0,TRMDES=”CMT

R0”;

ADD

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ADD

4.2.5 S111 Configuration

The S111 configuration includes three parts:

 To configure the channel unit, execute the following command

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 To configure the resource pool, execute the following commands

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Chapter 5 Features of Multi-Carrier Power

5.1 Allocation of Multi-Carrier Power

The power rating of each carrier of the CMTR is related to the band class and thenumber of carriers Table 1.1 describes the allocation of multi-carrier power

Table 1.1 Allocation of multi-carrier power

One or two carriers Three carriers

450 MHz 44 dBm (power rating of each carrier) 42.5 dBm (power rating

of each carrier)

800 MHz 44 dBm (power rating of each carrier) 42.5 dBm (power rating

of each carrier)1.9 GHz 43 dBm (power rating of each carrier) 41.5 dBm (power rating

of each carrier)2.1 GHz 43 dBm (power rating of each carrier) 41.5 dBm (power rating

of each carrier)

5.2 CMPA Overdrive Threshold

The three carrier signals are amplified by the CMPA simultaneously in the carrier, BTS, so the CMPA must have good performance

multi-If the CMPA often exceeds the threshold, refer to the following Table 1.1 for judgment

Table 1.1 CMPA threshold

CMPA closing threshold

CMPA overdrive threshold

CMPA Recovery threshold

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800 MHz 53.5 dBm 52.5 dBm 51.5 dBm

5.3 Multi-Carrier Power Tracing

When the BTS power fails, you can trace the power on the TELNET to analyze theproblem

The following presents some examples of tracing multi-carrier power

Base band power: carrier0 = N/A, carrier1 = 38.8, carrier2 = 38.8

Digital power: carrier0 = N/A, carrier1 = 38.8, carrier2 = 38.8

Attenuation: carrier0 = 0.0, carrier1 = 0.0, carrier2 = 0.0

Digital power sum = 41.7, HPA (Antenna) power = 41.7, Observe chan power = N/A

IF gain adjust = 0.0, RF gain adjust = -4.0, DDU gain adjust = 0.0

Table 1.1 lists the parameter description

Table 1.1 Parameter description

Base band power Base band power (dBm)

Digital power Forward digital field power (dBm)

Digital power sum Sum of the forward digital field of the three carriers

(dBm)HPA (Antenna) power Output power of the amplifier (dBm)

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DDU gain adjust CDDU gain adjustment (dBm)

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Chapter 6 Multi-Carrier BTS Calibration

For multi-carrier BTS calibration, see Guide to CDMA2000 BTS3606 Calibration.

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Chapter 7 Limitation on Multi-Carrier System

7.1 One Cell of Multi-Carrier BTS

Currently, one cell of Multi-carrier cBTS3606 supports three sectors at most ratherthan six sectors supported by CBTS3612

7.2 Multi-channel Carrier Board

The multi-channel carrier board does not support adaptive filter

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Chapter 8 Fault Location

8.1 Forward Power Abnormal

The abnormal BTS power causes a decrease in BTS coverage and weak MS signal

To solve this problem, do as follows:

1) Check the version of each board inside BTS Make sure that the TRM and CMPAare normal

2) If the condition is permitted, calibration test can be conducted If the calibrationfails, test the transmission port power of the CDDU and TRM

3) If the calibration cannot be conducted, trace the BTS transmission power onTELNET after the BTS has ran over 10 minutes If the digital power and amplifierpower are normal, the antenna feeder may be connected abnormally Check theantenna standing wave and antenna connection

4) If the amplifier power is abnormal, the problem may be that the amplifier is faulty

or the RF cable or the amplifier is not connected well To solve this problem, do

as follows:

a) Make sure that the RF cable is connected well

b) Remove and plug the amplifier

c) Change the amplifier if the fault is not cleared after the previous two steps 5) If the digital power is abnormal, the problem may be that the TRM is faulty or notconnected well Remove and plug the TRM If the fault is not cleared, change theTRM

6) If the fault is not cleared after the previous procedures, consult the BTSmaintenance group

8.2 Reverse Channel Abnormal

The reverse channel is abnormal due to interference and other faults This causes alow MS transmission power and low successful access rate To solve this problem, do

as follows:

1) Make sure that the antenna and RF cables are connected well

2) Check the diversity bypass mode of the data configuration The diversity bypass

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