WCDMA RNO Single Site Verification

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  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page0

    WCDMA RNO Single Site

    Verification

    Technology Changes.

    Communication Lasts.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page1

    Course Contents

    Chapter 4 Problem example for site verification

    Chapter 3 Single site verification

    Chapter 2 Single site verification preparation

    Chapter 1 Single site verification overview

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page2

    Single Site Verification Overview

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page3

    Flow chart of single site verification

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page4

    Single Site Verification Overview

    Purpose: The single site verification test is a part of the

    WCDMA network optimization to ensure that the basic

    functions of the cell are normal, such as coverage ,call

    access, call quality, parameter setting and so on.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page5

    Single Site Verification Overview

    Content: Through the single site function verification, the

    following functions for each cell shall be checked as normal :

    Verify coverage ( CPICH RSCP & Ec/Io )

    Verify scrambling code

    Verify no installation faults (e.g. crossed feeders)

    Make service call test

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page6

    Single Site Verification Overview

    Tools:

    Drive test scanner, used for collecting the pilot signal data.

    DTI;

    Test UE, used for service verification and system

    message collection. Huawei 626;

    Data collection software, used to display and log the

    signal strength, UE status, signal message and so on in

    time. Genex Probe;

    Data analysis software, used to resolve message, analysis

    signal, solve problem and so on. Genex Assistant .

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page7

    Chapter 4 Problem example for site verification

    Chapter 3 Single site verification

    Chapter 2 Single site verification preparation

    Chapter 1 Single site verification overview

    Course Contents

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page8

    Single Site Verification Preparation

    Before the single site verification, we should only ensure the

    following conditions have been met.

    Alarm Check

    Cell Status Check

    Parameter Check

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page9

    Single Site Verification Preparation

    Alarm Check

    The product support engineer will be responsible for

    checking and resolving all the alarms. It is important for

    the optimization engineer prior to any field test to check

    with product support engineer regarding any alarms

    especially intermittent alarms.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page10

    Single Site Verification Preparation

    Cell Status Check

    The product support engineer will be responsible for

    checking and resolving all the cell state problems. It is

    important for the network optimization engineer prior to

    any field test to confirm with product support engineer

    regarding cell state.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page11

    Single Site Verification Preparation

    Parameter Check

    The optimization engineer need to ensure the radio part

    parameters configuration list has been achieved. In the list

    the radio part parameters includes: LAC and

    RAC ,frequency, the scrambling code, etc.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page12

    Course Contents

    Chapter 4 Problem example for site verification

    Chapter 3 Single site verification

    Chapter 2 Single site verification preparation

    Chapter 1 Single site verification overview

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page13

    Single Site Verification

    Site Verification Items:

    Installations: CPICH RSCP, CPICH Ec/Io, Rx Antenna

    Swap Test

    Settings: Frequency & SC, LAC/RAC

    Functions: Voice (MT & MO), VP (MT & MO), etc.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page14

    Single Site Verification

    Test Process 1

    Items: LAC and RAC

    Purpose: Verify the LAC and RAC is as same as that of planning

    Method: Power on the huawei626 mobile, press the Application Program,

    and select 2 WCDMA network information, RAC and LAC in the network

    can been seen.

    Notes: if the LAC and RAC is not as same as that of RNP, we should

    modify it and test it again

    Application program

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page15

    Single Site Verification

    Test Process 2

    Items: Frequency and Scrambling Code

    Purpose: Check the frequency and scrambling code for

    the verified cell if its right or not.

    Method: Power on the huawei626 mobile, press the

    Application Program, and select 3 WCDMA active

    set/monitor set, Frequency DL and Scrambling Code in

    the network can been see.

    Notes: If the frequency and scrambling code is not as

    same as that of the planning, there is some mistakes with

    the parameter setting or the Tx antenna installation

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page16

    Single Site Verification

    Test Process 3

    Items: CPICH RSCP and CPICH Ec/Io

    Purpose: Check the CPICH RSCP and CPICH Ec/Io for the

    verified cell is normal or not.

    Method: Power on the huawei626 mobile, press the Application

    Program, and select 3 WCDMA active set/monitor set. Check if

    CPICH RSCP(Ec) is higher than -85dBm and CPICH Ec/Io is

    higher than -8dB.

    Notes: (1) The mobile shall be near the site.

    (2) If its abnormal, maybe the Tx antenna installation

    or the downlink interference have some problems.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page17

    Single Site Verification

    Test Process 4

    Items: Voice Call (MT & MO)

    Purpose: Verify the voice call function is normal and the

    voice call quality is good

    Method: Make the dialing test of 3G speech service

    between two 3G mobiles, one for the terminating call and

    another one for the originating call. Test the speech

    communication quality by your feeling.

    Notes: huawei626 mobile

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page18

    Single Site Verification

    Test Process 5

    Items: VP Call (MT & MO)

    Purpose: Verify the VP call function is normal and the VP

    call quality is good

    Method: Make the dialing test of 3G VP service between

    two 3G mobiles, one for the terminating call and another

    one for the originating call. Test the speech and photo

    communication quality by your feeling.

    Notes: huawei626 mobile

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page19

    Single Site Verification

    Test Process 6

    Items: PS service

    Purpose: Verify the PS function is normal and the PS

    quality is good.

    Method: Make the dialing test of 3G PS service, which

    include WWW browsing and file downloading. Test the PS

    connection quality by your feeling.

    Notes: huawei626 mobile

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page20

    Single Site Verification

    Test Process 7

    Items: Antenna swapping test

    Purpose: Verify the Rx feeder installation is right or not

    Method: Switch the transmitter from one feeder to another,

    check the RSCP changed or not. If no change happened,

    it means that the feeder is correct. Check the RSCP from

    scanner

    If the receive antenna crossed, the uplink diversity receive

    gain is loss, and the uplink interfere is doubled. It will

    affect the uplink capability. Check the RTWP of the cell.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page21

    Single Site Verification

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    Single Site Verification

    Troubleshooting:

    The problem recording list should be filled in and the

    product support engineer should be encouraged to solve

    the problems.

    Track the problems until they are solved.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page23

    Single Site Verification

    Notice items 1: Test Point Choice

    We shall choose the test point where the CPICH RSCP of

    the target sector is high enough and that of other sector is

    poor.

    The test points should be chosen near the site and ideally

    with line-of-sight to the site.

    The test points should not be chosen under the site as the

    signal of other sectors of same site is strong too.

  • Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Page24

    Single Site Verification

    Notice items 2: Test Route Choice

    The driving test route should connect the test points o