Huawei Confidential. All Rights Reserved WCDMA RNO Single Site Verification 1.0
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training slide1.0
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
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 call access, call quality, handover and so on.
Internal Use
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
Make service call test
Tools:
Drive test scanner, used for collecting the pilot signal data. For ex: DTI Scanner, Agilent E6455C;
Test UE, used for service verification and system message collection. Qualcomm 6250 & U626;
Data collection software, used to display and log the signal strength, UE status, signal message and so on in time. Genex Probe, Agilent E6474A software;
Data analysis software, used to resolve message, analysis signal, solve problem and so on. Genex Assistant,Actix Analyzer software.
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
Single Site Verification Preparation
Before the single site verification, we should only ensure the following conditions have been met.
Alarms Check
Alarms 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.
Internal Use
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.
RNC LMT M2000 “”“”“”“” RNC LMT MML DSP CELL
Internal Use
Parameters Check
The optimization engineer need to ensure the radio part parameters configuration list has been achieved. In the list the radio part parameters includes: the scrambling code, power setting, neighbor cell list, handover parameter etc.
1
5 Checklist
7ID//
8
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
Installations: CPICH RSCP, CPICH Ec/Io, Rx Antenna Swap Test
Settings: Frequency & SC, Cell reselection parameters, LAC/RAC, Neighbor List.
Functions: LA/RA update, 3G<->2G Cell reselection, SMS (MT & MO), Voice (MT & MO), VP (MT & MO), PS Attach & Detach, PS service, Voice/VP/PS soft handover, Voice 3G->2G handover.
SiteCheckList
11
13
Handover
20
21
22
23
25
1-Name/Designation:
Signature:
Data:
2-Name/Designation:
Signature:
Data:
Notes: If the item is OK, mark the '√' on the ''; If the item is not OK, mark the '' on the ''; If the item is not checked, mark the '' on the ''.
Internal Use
Items: LA update / RA update / PS Attach
Purpose: Verify the LA update and RA update functions are normal, the PA attach function is normal.
Method: Power on the Qualcomm mobile, if the ‘WCP’ indication is shown on the mobile screen, it means the LA update procedure is OK, the RA update procedure is OK, the PS attach is OK.
Notes: If the ‘WC’ is shown on the mobile, it means the LA update is OK. If the ‘P’ is shown on the mobile, it means the RA update and the PS attach is OK.
Internal Use
Purpose: Verify the PA detach function is normal
Method: Choose “Menu -> 5 -> 9 -> 2” on Qualcomm mobile, if the ‘WCP’ indication is changed to ‘WC’ indication on the mobile screen, PS detach is OK.
Notes: N/A
Internal Use
Items: Frequency and Scrambling Code
Purpose: Check the frequency and scrambling code for the verified cell is right or not. If it’s wrong, maybe the parameter setting or the Tx antenna installation have some mistake.
Method: Setup the Agilent E6474A software, observe cell frequency and scrambling code from UMTS CPICH View window. Check the frequency and scrambling code for the verified cell is as same as planning.
Notes: N/A
Internal Use
Items: CPICH RSCP and CPICH Ec/Io
Purpose: Check the CPICH RSCP and CPICH Ec/Io for the verified cell is normal or not. If it’s abnormal, maybe the Tx antenna installation or the downlink interference have some problems.
Method: In the Agilent E6474A software, observe CPICH RSCP and CPICH Ec/Io from UMTS Status View window. Check if CPICH RSCP is higher than -85dBm and CPICH Ec/Io is higher than -8dB.
Internal Use
The mobile shall be near the site
The CPICH RSCP and Ec/Io can be seen from scanner or Qualcomm mobile. Use the Qualcomm mobile to check the CPICH RSCP and CPICH Ec/Io.
When we use the Qualcomm mobile to check the CPICH RSCP and CPICH Ec/Io, the Io and Ec/Io shall be obtained, the CPICH RSCP shall be obtained through calculation: RSCP = Ec/Io + RSSI
Internal Use
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 feel.
Notes: Qualcomm or Motorola mobile
Internal Use
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 feel.
Notes: Motorola mobile
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 feel.
Notes: Qualcomm or Motorola mobile
Internal Use
Purpose: Verify the SMS function is normal
Method: Make the dialing test of 3G SMS service between two 3G mobiles, one for the terminating call and another one for the originating call.
Notes: Motorola mobile
Purpose: Check the parameters setting for the verified cell.
Method: UE shall read the system information when UE is in idle mode. Collect UE reserved message and check the parameters with Actix Analyzer software after the drive test.
Notes:
Test Process step 10
Items: 3G->2G voice handover, 3G->2G cell reselection, 2G->3G cell reselection
Purpose: Verify the 3G->2G handover and 3G<->2G cell reselection functions are normal.
Method: Find a place where there is 2G signal without 3G signal. One mobile is keeping a voice call and another one is in idle mode. Move from 3G to 2G, the mobile with voice call shall handover to 2G and the mobile in idle mode shall reselect to 2G. Move from 2G to 3G, the mobile in idle mode shall reselect to 3G.
Notes: Use the Motorola mobile to do the test, the ‘3G’ or ‘2G’ indication is shown on the mobile screen
Internal Use
Purpose: Verify the Rx feeder installation is right.
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.
Notes: Check the RSCP from scanner
Internal Use
Purpose: Verify the soft handover function is normal
Method: Take a speech service or VP service or PS service call and keep it. Verify the soft handover from one sector to another sector. During the process, observe the CPICH scrambling code changing from Agilent UMTS CPICH View, and observe the active set update message from UMTS Protocol Messages View.
Notes: N/A
Internal Use
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.
Internal Use
Notice items 1: Test Point Choice
We shall choose the test point where the CPICH RSCP of 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.
Internal Use
Notice items 2: Test Route Choice
The driving test route should connect the test points of the sectors. It is required that signals not be shadowed by buildings along the test route to avoid turning the test into a coverage test.
Internal Use
Notice items 3: Antenna Swapping Test Purpose
If the receive antenna crossed, the uplink diversity receive gain is loss, and the uplink interfere is doubled. It will affect the uplink capability.
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
In the site verification, following problems have been found
Scrambling Code Setting is wrong: The scrambling code from scanner and mobile is different from the planning
After feeder swapped, the CPICH RSCP is 20dB lower than before.
Internal Use
Scrambling Code Setting is wrong
The Scrambling Code may be wrong in RNC, check the datasheet in RNC.
If the Scrambling Code from scanner is the same as that of another sector in same site planned, maybe the TX/RX feeder is crossed to the another sector.
Answers
After feeder swapped, the CPICH RSCP is 20dB lower than before:
The RX feeder is crossed to the antenna of another sector. In this case, the CPICH RSCP will be high in the coverage area of the other antenna. Check the connection between the feeder and the antenna.
Huawei Confidential. All Rights Reserved
Site Checklist.xls
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
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 call access, call quality, handover and so on.
Internal Use
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
Make service call test
Tools:
Drive test scanner, used for collecting the pilot signal data. For ex: DTI Scanner, Agilent E6455C;
Test UE, used for service verification and system message collection. Qualcomm 6250 & U626;
Data collection software, used to display and log the signal strength, UE status, signal message and so on in time. Genex Probe, Agilent E6474A software;
Data analysis software, used to resolve message, analysis signal, solve problem and so on. Genex Assistant,Actix Analyzer software.
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
Single Site Verification Preparation
Before the single site verification, we should only ensure the following conditions have been met.
Alarms Check
Alarms 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.
Internal Use
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.
RNC LMT M2000 “”“”“”“” RNC LMT MML DSP CELL
Internal Use
Parameters Check
The optimization engineer need to ensure the radio part parameters configuration list has been achieved. In the list the radio part parameters includes: the scrambling code, power setting, neighbor cell list, handover parameter etc.
1
5 Checklist
7ID//
8
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
Installations: CPICH RSCP, CPICH Ec/Io, Rx Antenna Swap Test
Settings: Frequency & SC, Cell reselection parameters, LAC/RAC, Neighbor List.
Functions: LA/RA update, 3G<->2G Cell reselection, SMS (MT & MO), Voice (MT & MO), VP (MT & MO), PS Attach & Detach, PS service, Voice/VP/PS soft handover, Voice 3G->2G handover.
SiteCheckList
11
13
Handover
20
21
22
23
25
1-Name/Designation:
Signature:
Data:
2-Name/Designation:
Signature:
Data:
Notes: If the item is OK, mark the '√' on the ''; If the item is not OK, mark the '' on the ''; If the item is not checked, mark the '' on the ''.
Internal Use
Items: LA update / RA update / PS Attach
Purpose: Verify the LA update and RA update functions are normal, the PA attach function is normal.
Method: Power on the Qualcomm mobile, if the ‘WCP’ indication is shown on the mobile screen, it means the LA update procedure is OK, the RA update procedure is OK, the PS attach is OK.
Notes: If the ‘WC’ is shown on the mobile, it means the LA update is OK. If the ‘P’ is shown on the mobile, it means the RA update and the PS attach is OK.
Internal Use
Purpose: Verify the PA detach function is normal
Method: Choose “Menu -> 5 -> 9 -> 2” on Qualcomm mobile, if the ‘WCP’ indication is changed to ‘WC’ indication on the mobile screen, PS detach is OK.
Notes: N/A
Internal Use
Items: Frequency and Scrambling Code
Purpose: Check the frequency and scrambling code for the verified cell is right or not. If it’s wrong, maybe the parameter setting or the Tx antenna installation have some mistake.
Method: Setup the Agilent E6474A software, observe cell frequency and scrambling code from UMTS CPICH View window. Check the frequency and scrambling code for the verified cell is as same as planning.
Notes: N/A
Internal Use
Items: CPICH RSCP and CPICH Ec/Io
Purpose: Check the CPICH RSCP and CPICH Ec/Io for the verified cell is normal or not. If it’s abnormal, maybe the Tx antenna installation or the downlink interference have some problems.
Method: In the Agilent E6474A software, observe CPICH RSCP and CPICH Ec/Io from UMTS Status View window. Check if CPICH RSCP is higher than -85dBm and CPICH Ec/Io is higher than -8dB.
Internal Use
The mobile shall be near the site
The CPICH RSCP and Ec/Io can be seen from scanner or Qualcomm mobile. Use the Qualcomm mobile to check the CPICH RSCP and CPICH Ec/Io.
When we use the Qualcomm mobile to check the CPICH RSCP and CPICH Ec/Io, the Io and Ec/Io shall be obtained, the CPICH RSCP shall be obtained through calculation: RSCP = Ec/Io + RSSI
Internal Use
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 feel.
Notes: Qualcomm or Motorola mobile
Internal Use
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 feel.
Notes: Motorola mobile
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 feel.
Notes: Qualcomm or Motorola mobile
Internal Use
Purpose: Verify the SMS function is normal
Method: Make the dialing test of 3G SMS service between two 3G mobiles, one for the terminating call and another one for the originating call.
Notes: Motorola mobile
Purpose: Check the parameters setting for the verified cell.
Method: UE shall read the system information when UE is in idle mode. Collect UE reserved message and check the parameters with Actix Analyzer software after the drive test.
Notes:
Test Process step 10
Items: 3G->2G voice handover, 3G->2G cell reselection, 2G->3G cell reselection
Purpose: Verify the 3G->2G handover and 3G<->2G cell reselection functions are normal.
Method: Find a place where there is 2G signal without 3G signal. One mobile is keeping a voice call and another one is in idle mode. Move from 3G to 2G, the mobile with voice call shall handover to 2G and the mobile in idle mode shall reselect to 2G. Move from 2G to 3G, the mobile in idle mode shall reselect to 3G.
Notes: Use the Motorola mobile to do the test, the ‘3G’ or ‘2G’ indication is shown on the mobile screen
Internal Use
Purpose: Verify the Rx feeder installation is right.
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.
Notes: Check the RSCP from scanner
Internal Use
Purpose: Verify the soft handover function is normal
Method: Take a speech service or VP service or PS service call and keep it. Verify the soft handover from one sector to another sector. During the process, observe the CPICH scrambling code changing from Agilent UMTS CPICH View, and observe the active set update message from UMTS Protocol Messages View.
Notes: N/A
Internal Use
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.
Internal Use
Notice items 1: Test Point Choice
We shall choose the test point where the CPICH RSCP of 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.
Internal Use
Notice items 2: Test Route Choice
The driving test route should connect the test points of the sectors. It is required that signals not be shadowed by buildings along the test route to avoid turning the test into a coverage test.
Internal Use
Notice items 3: Antenna Swapping Test Purpose
If the receive antenna crossed, the uplink diversity receive gain is loss, and the uplink interfere is doubled. It will affect the uplink capability.
Internal Use
Course Contents
Chapter 3 Single site verification
Chapter 2 Single site verification preparation
Chapter 1 Single site verification overview
Internal Use
In the site verification, following problems have been found
Scrambling Code Setting is wrong: The scrambling code from scanner and mobile is different from the planning
After feeder swapped, the CPICH RSCP is 20dB lower than before.
Internal Use
Scrambling Code Setting is wrong
The Scrambling Code may be wrong in RNC, check the datasheet in RNC.
If the Scrambling Code from scanner is the same as that of another sector in same site planned, maybe the TX/RX feeder is crossed to the another sector.
Answers
After feeder swapped, the CPICH RSCP is 20dB lower than before:
The RX feeder is crossed to the antenna of another sector. In this case, the CPICH RSCP will be high in the coverage area of the other antenna. Check the connection between the feeder and the antenna.
Huawei Confidential. All Rights Reserved
Site Checklist.xls
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