16. WCDMABTS Installation

Huawei Confidential. All Rights Reserved

WCDMA BTS Installation

ISSUE 1.0

2 Internal Use

ObjectivesObjectives

Upon completion this course, you will be familiar with installation of:

Cabinet, Subracks and Boards.

Cabinet Equipment Cables.

Omni and Directional Antennas.

Tower and Roof Top Antennas.

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Chapter 1Chapter 1 Cabinet InstallationCabinet Installation

Chapter 2 Chapter 2 Equipment Equipment InstallationInstallation

Chapter 3 Chapter 3 Antenna Subsystem Antenna Subsystem InstallationInstallation

Chapter 4 Chapter 4 BTS Commissioning BTS Commissioning ProcedureProcedure

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Unpacking Wooden CaseUnpacking Wooden Case

SteeledgeWoodenboard

Tongue

Spanner

• Insert one end of the ejector lever into a hole of the tongue on the cover of the wooden case.

• Turn the ejector lever to straighten the tongue. You can also use a screwdriver or a hammer to handle the tongue.

• After straightening all the tongues on the cover, remove the cover

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Unpacking CartonsUnpacking Cartons

• Cartons are usually used to pack cables, circuit boards and terminal devices. • When unpacking the circuit boards, you need to take anti-static measures.• Pay attention to the temperature and humidity of the environment. After

transporting the equipment to a place with higher temperature and humidity, do not unpack it immediately until 30 minutes later. Otherwise, moisture will condense on the surface of the equipment, causing damage to it.

(1) Board label(2) Foam materials(3) Board(4) Anti-static bag(5) Board box(6) Pressure-sensitive adhesive tape(7) Carton label (8) Strap (9) Carton

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Cabinet Layout PrincipleCabinet Layout Principle

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Installing Cabinet at Cement FloorInstalling Cabinet at Cement Floor

• The lower support is placed on insulating plates to separate it from the cement floor.

• Use the M12x60 expansion bolt and Φ16 bit to drill the hole on the cement floor.

• Depth of the hole must range from 52 mm to 60 mm. Otherwise, the expansion bolt cannot be fastened.

• Take off the M12x60 bolt, spring washer, plain washer, and insulating washer.

M12 x 70 bolt Spring washer Plain washerInsulating washer

Expansion tube

Guiding slot

Nut

Guiding rib

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• Feed the tube and the nut into the hole vertically and make sure that the guiding rib on the nut meets the guiding slot of the tube.

• Hammer the tube until it is completely buried in the ground.

• To fix the lower support, place the insulating plate and the lower support in turn aligning with the four expansion bolts.

• Place the spring washer, plain washer, and insulating covering onto the four M12x60 bolts.

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• To level the lower support, place a level bar in vertical direction on the top-plane of the lower support.

• Check the levelness of the lower support.

• When an error occurs, adjust the levelness by adding gaskets beneath the lower support.

To conduct an insulation test, set the multimeter to "MΩ".• Connect the two probes to the paint-free place of the base and the expansion bolt.

• If the resistance is larger than 5 M Ω, the insulation is properly done. • If the resistance is lesser 5 M Ω, check whether any insulating covering or insulating washer is missing or damaged.

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Floor with Poor Bearing CapacityFloor with Poor Bearing Capacity

• Draw two straight parallel benchmark lines with a marker. The spacing between the two straight lines is 630 mm. Determine the position of the first hole of the U-bar support and subsequently the rest of the installation holes.

• Use the Φ20 bit to drill holes.• Align the insulating plate and the lower support to the four holes and fasten.

630mm M12x45 blot Spring washer Plain washer

Insulating covering

Insulating plate

Gasket

Lower support

U-bar support

600mm

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Installing Cabinet at Antistatic FloorInstalling Cabinet at Antistatic Floor

• Installing the BTS cabinet on antistatic floor requires A600 base supports for underneath the antistatic floor.

• Then a lower support is installed on the antistatic flooring.• Adjust accordingly with gaskets to level the lower support.

M12x70 expansion blot

Spring washer

Plain washer

Insulating covering

Gasket

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Installing CabinetInstalling Cabinet

• Place the upper support on the lower support and push in the cabinet.• Then push the cabinet back to lock into the lower support.• Secure it with 4 bolts at the bottom front and rear of the cabinet.

Upper support

Lower support

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Chapter 1 Chapter 1 Cabinet InstallationCabinet Installation

Chapter 2Chapter 2 Equipment Equipment InstallationInstallation



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BTS3812 HardwareBTS3812 Hardware

(1) PDU Subrack(1) PDU Subrack

(2) (2) Fan Subrack Fan Subrack

(3)(3) Baseband Baseband

SubrackSubrack

(4)(4) RF Subrack RF Subrack

(5) (5) Air Inlet Air Inlet

(6)(6) Power Amplifier Power Amplifier

SubrackSubrack

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Fan Box InstallationFan Box Installation

Figure 2. Fan Box Structure

Figure 1. Fan Subrack

• Push fan box into corresponding slot.• When distance between fan handle & subrack reaches 6mm, there’ll be large resistance. You need to push harder.

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Installing BoardsInstalling Boards

• Wear an antistatic wrist strap during installation of the boards.• Insert the boards according to the names on the nameplates properly.• Don’t touch the Printed Circuit Board (PCB) and components.• Insert the board vertically and gently lest the pins and components on the backplane be damaged.• Hold the two ejector levers and push the board along the guide rail gently till it is in position.• Hold both ejector levers and turn them towards the middle of the panel to fasten the board. • Tighten the screws clockwise on the front panel.

Ejector lever

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Setting DIP SwitchesSetting DIP Switches

• Wear an antistatic wrist strap during installation of the boards.Wear an antistatic wrist strap during installation of the boards.• Before installing boards and modules, check whether the DIP switches (if any) Before installing boards and modules, check whether the DIP switches (if any)

on the backplane and the boards are correctly set according to the silk screen on the backplane and the boards are correctly set according to the silk screen printed on the boards.printed on the boards.

• Boards: Boards: NDTI & NAOI BoardsNDTI & NAOI Boards

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E1 Lightning Protection BoardE1 Lightning Protection Board

• Set E1 lightning protection board to realize the grounding of RX/TX of E1/T1Set E1 lightning protection board to realize the grounding of RX/TX of E1/T1

• J4J4 : Set grounding status of TX end of E1/T1 (DB25 male socket) : Set grounding status of TX end of E1/T1 (DB25 male socket)• J5J5 : Set grounding status of RX end of E1/T1 (DB25 male socket) : Set grounding status of RX end of E1/T1 (DB25 male socket)

• For unbalanced connection (75Ohm): TX grounded, Rx not groundedFor unbalanced connection (75Ohm): TX grounded, Rx not grounded J4 connects with the plug, J4 connects with the plug,

J5 connection.J5 connection.

• For balanced connection : Both Tx and Rx are not groundedFor balanced connection : Both Tx and Rx are not grounded

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E1 Lightning Protection BoardE1 Lightning Protection Board

NDTI/NAOI and its corresponding E1 lightning protection board

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Installing NRFB Jumper Installing NRFB Jumper

• Before installing boards and Before installing boards and modules into the RF subrack, modules into the RF subrack, set the NRFB jumpers set the NRFB jumpers accordingly.accordingly.

Fig. 1 Jumpers on NRFB

Fig. 2 Mode A jumpers setting (Default) Fig. 3 Mode B jumpers setting

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NLPA BoardNLPA Board

• Before inserting or pulling out NLPA board, ensure that its power switch is OFFpower switch is OFF• NLPA is very heavy. Handle with two hands. • Ensure the socket at the bottom of NLPA parallel to that of NLPA. If it’s slant, unscrew the captive screw on the socket to adjust it.

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RF Port Wiring Between NRFB & NPABRF Port Wiring Between NRFB & NPAB

RF port wiring for 2-way RX and 3-sector mode.

Dotted lines for sector configuration with transmit diversity mode.

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RF Port Wiring Between NRFB & NPABRF Port Wiring Between NRFB & NPAB

RF port wiring for 2-way RX and 6-sector modeNot possible to have TX diversity

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Configuration for OTSRConfiguration for OTSR

Back view of RF port wiring for OTSR mode

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Physical Connection on Top of CabinetPhysical Connection on Top of Cabinet

(1) Optical interface (two)(2) Connector for antenna & feeder (7/16 DIN type, female)(3) EMI Filter(4) Protection Ground(5) Terminal block for input power(6) Parallel integrated lightning arrester(7) Cable binding frame(8) Signal lightning protection board(9) Signal conversion board(10) E1 loop back connector (11) E1/T1 cable connector (12) E1 grounding connector

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Connecting Power CablesConnecting Power Cables

• The –48 V DC power (blue) and the Ground (black) is led to the terminal block through the power cable to supply power for the whole BTS.

• PGND is yellow/green cable.

• The cable sectional area is 25 mm2.

• Ensure NodeB is less than 30m from customer grounding bar. If

more, ask customer to install new grounding bar nearby.

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Connecting Trunk CablesConnecting Trunk Cables

• There are 4 external DB25 connectors on the E1 lightning protection board on the cabinet top. Each connector connects to four E1 cables.

• The four DB25 connectors are numbered E1_0, E1_1, E1_2 & E1_3. • Each NDTI has 2 external DB25 connectors.

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RF Antenna and FeederRF Antenna and Feeder

Sect

or ¦B

Sect

or¦A

Sect

or¦C

Antenna

Feeder

Jumper

Jumper

BTS cabinet

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Cutting the FeedersCutting the FeedersCutting the FeedersCutting the Feeders

• Cut feeders before or after hoisting them to the installation position.• Cut the feeders to the determined length, leaving an allowance of 2m. • When cutting the feeders, keep them from being bent and prevent them from being rolled over by vehicles or stepped on by pedestrians.

• Attach temporary labels to both ends and in the middle of the feeders after cutting each piece.

• For the feeder connectors not finished yet or those not connected with jumpers, make them waterproof by wrapping the connectors with waterproof tapes or put plastic bags on the connectors and then wrap them with waterproof tapes.

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Assembling Omni-Directional AntennasAssembling Omni-Directional AntennasAssembling Omni-Directional AntennasAssembling Omni-Directional Antennas

• There are many types of fixing clips for omni antenna. Fix the clips accordingly.

• Apply waterproof treatment to the connector between the antenna and the jumper.

Structure of the fixing clip for omni antenna (type 1)

Structure of the fixing clip for omni antenna (type 2)

Omni antenna

Antenna jacket

Fixing clip for the omni antenna

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Omni-Directional Antennas on TowerOmni-Directional Antennas on TowerOmni-Directional Antennas on TowerOmni-Directional Antennas on Tower

• Omni antennas are installed on the tower, at least 2m away from the tower body.

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Assembling Directional AntennaAssembling Directional AntennaAssembling Directional AntennaAssembling Directional Antenna

• The accessories of directional antennas include antenna fixing clip, pitch angle adjusting device and jumper.

• Locate the two fixing and adjusting points respectively at the top and bottom of the antenna according to the identifiers marked on the antenna back.

• The point at the top is used to adjust the pitch angle and the one at the bottom to fix the antenna with the stand.

Fixing clip for the directional antenna Adjusting device for the pitch angle of directional antenna

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Installing Feeder on AntennaInstalling Feeder on AntennaInstalling Feeder on AntennaInstalling Feeder on Antenna

• Connect the jumper connector with the antenna connector securely.• Apply waterproof treatment to the connector between the antenna and the jumper.

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Directional Antenna AzimuthDirectional Antenna AzimuthDirectional Antenna AzimuthDirectional Antenna Azimuth

• For the directional antenna, its azimuth error is not greater than +/-5 degrees, and its tilt error not greater than +/-0.5 degrees.

• Tune the pitch angle of the antenna gently until it satisfies the design requirement. Generally, the pitch angle error is equal to or less than 0.5°.

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Directional Antennas on TowerDirectional Antennas on TowerDirectional Antennas on TowerDirectional Antennas on Tower

(1) Tower(2) Antenna stand on the tower top(3) Directional antenna(4) Cable tie

• Directional antennas are installed on the tower, at least 1m away from the tower body.

• Bend the jumpers naturally. • The bending radius must be more than 20 times of the jumper diameter.

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Installing Antenna on Roof TopInstalling Antenna on Roof TopInstalling Antenna on Roof TopInstalling Antenna on Roof Top

(1) Directional antenna(2) TMA (1900 MHz band)(3) Outdoor jumper(4) Outdoor cabling rack(5) Feeder fixing clip(6) Outdoor grounding bar(7) Feeder window (8) Feeder arrester (1900 MHz band)

• A typical structure of a dual-polarization antenna on a building roof top.

• The feeders require at least 3 grounding clips, 2 grounding clips 1m from each end and 1 grounding clip in the middle of the feeder length.

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Installing Antenna TowerInstalling Antenna TowerInstalling Antenna TowerInstalling Antenna Tower

(1) Lightning arrester(2) Antenna stand(3) Guardrails on the tower platform(4) TMA (at 1900 MHz band)(5) Cable tie(6) Directional antenna(7) Waterproof curve of the jumper(8) Lightning protection grounding clip of the feeder(9) Feeder(10) Outdoor cabling rack(11) Feeder window(12) Tower grounding body(13) Outdoor grounding bar

• A typical structure of a dual-polarization antenna tower.

• The feeders require at least 3 grounding clips, 2 grounding clips 1m from each end and 1 grounding clip in the middle of the feeder length.

(11)

(12)

(13)

(1)

(2)

(3)(4)

(5)(6)

(7)

(8)

(9)

(10)

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Antenna Lightning Protection CoverageAntenna Lightning Protection CoverageAntenna Lightning Protection CoverageAntenna Lightning Protection Coverage

• When extending the antenna stand from the tower platform, ensure that the antenna falls into the lightning protection coverage of the lightning arrester as shown, within the sharp angle of 45°.

45° 45°

(1)

(2)

(3) (3)(3)

(1) Lightning arrester(2) Mast of lightning arrester(3) Antenna

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Hardware Quality Inspection CheckHardware Quality Inspection CheckHardware Quality Inspection CheckHardware Quality Inspection Check

• After the hardware installation of the NodeB cabinet and the RF subsystem, use the Hardware Quality Inspection Check List to ensure that all installation procedures are properly followed.

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BTS Commissioning ProcedureBTS Commissioning Procedure

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1. Hardware Commissioning1. Hardware Commissioning

• Verify Hardware Installation• Refer to NodeB Installation Manual

• Verify DIP Switch and Jumper Setting• NDTI/NAOI Dip switch• NRFB jumper

• NodeB Power On

• Verify VSWR of Antenna and Feeder System• VSWR < 1.5• Site Master

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1. Hardware Commissioning1. Hardware Commissioning

Turn OFF NLPA switches on NLPA panel Execute command SET TTASWNDDLATTEN SET TTASWNDDLATTEN on LMT to turn off NTTA power On cabinet top, disconnect NodeB cabinet from antenna & feeder system Connect site master with antenna & feeder system through a cable Test VSWR with Site Master. For details, refer to Appendix A of NodeB Installation Manual-

System commissioning VSWR should be less than 1.5 Once done, connect antenna & feeder to NodeB connector.

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2. Software Commissioning2. Software Commissioning

Before software commissioning• Power on NodeB• Download correct data configuration file to NodeB

Software CommissioningSoftware Commissioning

1. Verify Operation & Maintenance Channel

2. Verify Software Version

3. Check Data Consistency

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2. Software Commissioning 2. Software Commissioning

1) O&M Channel Verification1) O&M Channel Verification

• Local Maintenance and IPOA Maintenance are normal

• Alarm reported correctly

1) Procedure of Verifying Local Maintenance Channeli. Check that LMT & NodeB NMPT are in the same IP

subnetii. Connect LMT to NMPT ETH portiii. Start LMT and log on to NodeBiv. Ensure that you can log on to NodeB & LMT

communicates with NodeB normally

2) Procedure of Verifying IPOA Maintenance Channeli. Connect LMT to RNC BAMii. Start LMT and log on to NodeBiii. Ensure that you can log on to NodeB through IPoA and

LMT communicates with NodeB normally

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1) O&M Channel Verification1) O&M Channel Verification

• Local Maintenance and IPOA Maintenance are normal

• Alarm reported correctly

3) Procedure of Verifying Alarm Reporti. Double click NodeB alarms in the Alarm Management

System to display alarm detailsii. Check that you can display alarms reportediii. Clear alarms according to online Help Information

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2) Software Verification2) Software Verification

• To verify current software version is in “Normal” state

Procedure of Software VerificationProcedure of Software Verification

i. Carry out MML command LST VERLST VER on NodeB O&M system- Current software version- Current software version status- Hardware version- Current BootRom version

ii. Pay attention to the following two cases- If current software version status is “Normal”, it

indicates software version of all boards is the same

- If current software version status “ Fractional”, it indicates software version of some boards are not the same. In this case, contact Huawei Technical Support for the required version.

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3) Data Consistency Verification3) Data Consistency Verification

• To verify NodeB static data in configuration file Flash is consistent with running data

Procedure of Data Consistency VerificationProcedure of Data Consistency Verification

i. Check static data and running data is consistent through MML command CHK DATACHK DATA on NodeB O&M system

ii. If not consistent, reset NodeB through MML command RST SYSRST SYS

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3. Iub Interface Commissioning3. Iub Interface Commissioning

• To verify Iub interface data between NodeB and RNC are consistent

Procedure of Iub Interface VerificationProcedure of Iub Interface Verificationi. Verify Iub data consistentii. Verify E1/T1

StepStep RNC Command NodeB Command

Verify IMA group LST IMAGRP LST IMAGRP

Verify IMALNK DSP IMALNK DSP IMALNK

Verify NCP, CCP LST IUBP LST CP

Verify AAL2ADJNODE LST AAL2ADJNODE LST AAL2NODE

Verify AAL2Node LST AAL2PATH LST AAL2PATH

Verify IPoA LST IPOAPVC LST IPOA

Verify E1/T1 DSP E1T1 DSP E1T1

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4. Clock Source Commissioning4. Clock Source Commissioning

• To verify clock source status

Procedure of Clock Source CommissioningProcedure of Clock Source Commissioningi. When selecting Iub as reference clock source, select E1/T1

of Iub interfaceii. To add, use “ADD IUBCLK”“ADD IUBCLK”iii. To display E1/T1 selected as Iub clock, “DSP IUBCLK”“DSP IUBCLK” iv. Set clock workmode using “MOD CLKMODE” “MOD CLKMODE” v. To start clock quality test, use “STR CLKTEST” “STR CLKTEST” vi. To stop, use “STP CLKTEST” “STP CLKTEST”

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5. Uplink RF Commissioning5. Uplink RF CommissioningBy calibrating uplink RF channel gain of NodeB, you can

• Clear variance among modules/boards

Procedure of Uplink RF Channel gain calibrationProcedure of Uplink RF Channel gain calibration

i. Block cell, BLK CELL (NodeB O&M)BLK CELL (NodeB O&M)ii. If NTTA installed, take note of the attenuation of main and diversity

channels of NDDL, DSP NDDLNTTA DSP NDDLNTTA and set NTTA to off , “SET , “SET TTASWNDDLATTEN” TTASWNDDLATTEN” to “OFF” “OFF”

iii. Remove antenna & feeder from NodeB cabinet top, then connect match load to antenna port of this cell on the cabinet top. But if no user, use antenna and feeder system as matched load.

iv. Start “RTWP measurement” on O&M system.v. RTWP measurement for both main and diversity RX antenna shall be –

105.5 dBm 105.5 dBm ±±2 dB2 dB and their difference is no more than 5 dB.

vi. If RTWP within defined range, restore the system .

vii. If not, do calibration

DSP RXINITGAINDSP RXINITGAIN

SET RXINITGAINSET RXINITGAIN

vii. Once calibrated, restore system.UNBLK CELLUNBLK CELLSET TTASWNDDLATTENSET TTASWNDDLATTEN to ON ON (if NTTA installed)

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5. Uplink RF Commissioning5. Uplink RF Commissioning

NTRX slot number

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6. Downlink RF Commissioning6. Downlink RF Commissioning

• By calibrating downlink RF channel gain of NodeB, you can• Clear variance among modules/boards• Ensure power of RF transmit signal at antenna port on cabinet top consistent with

configured cell transmit power

Procedure of Downlink RF Channel gain calibrationProcedure of Downlink RF Channel gain calibration

i. Deactivate logical cell through RNC MML , DEA CELLDEA CELLii. Create 141 Test on NodeB O&M

- Set Cell Parameter- Select [DL Test Started/Start RF Test/DL Test/Maximum Transmit [DL Test Started/Start RF Test/DL Test/Maximum Transmit

Power Power ] from the 141 test window to start the Maximum Transmit Power test.iii. On NodeB O&M, STR NLPAPWRMONSTR NLPAPWRMON

The slot number of the NLPA must correspond to the cell being calibrated. Normal range of NLPA output power is

- No transmit diversity: 43.5 dBm to 47.5 dBm- For transmit diversity : 40.5 dBm to 44.5 dBm

iv. If NLPA output power falls within normal range, restore system; STP NLPAPWRMONSTP NLPAPWRMONStop 141 testRST SYSRST SYSACT CELLACT CELL on RNC O&M system

v. If not fall within normal range;STP NLPAPWRMONSTP NLPAPWRMONDSP TXINITGAINDSP TXINITGAIN on NodeB O&M systemSET TXINITGAINSET TXINITGAINSTR NLPAPWRMONSTR NLPAPWRMON

Once calibrated, restore system ( Step iv).

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6. Downlink RF Commissioning6. Downlink RF Commissioning

1

2

Set Cell Parameter

Start RF Test

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7. Service Commissioning7. Service Commissioning

Service commissioning involves• Verifying Cell Status• Verifying Service

Procedure of verify cell statusProcedure of verify cell status

i. Query local cell, LST CELL LST CELL on the RNC O&M systemii. Query local cell, LST LOCELL LST LOCELL on the RNC O&M systemiii. Ensure local cell is consistent between NodeB and RNC, DSP CELLDSP CELL

on NodeB O&M

Procedure of verify serviceProcedure of verify service

16. WCDMABTS Installation

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