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Huawei wcdma-rno-single-site-verificationV1

SSV guide for Huawei

Huawei wcdma-rno-single-site-verificationV1

  1. 1. WCDMA RNO Single Site Verification ISSUE 1.0 Wireless Curriculum Development Section
  2. 2. 2 Confidential Information of Huawei. No Spreading without Permission. Course Contents Chapter 1 Single site verification overview Chapter 2 Single site verification preparation Chapter 3 Single site verification Chapter 4 Problem example for site verification Security Level: Internal
  3. 3. 3 Single Site Verification Overview Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal
  4. 4. 4 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. Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal
  5. 5. 5 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 ) Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  Verify scrambling code  Verify no installation faults (e.g. crossed feeders)  Make service call test
  6. 6. 6 Single Site Verification Overview Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  Tools:  Drive test scanner, used for collecting the pilot signal data. Agilent E6455C;  Test UE, used for service verification and system message collection. Qualcomm 6200 & Motorola A835 mobile;  Data collection software, used to display and log the signal strength, UE status, signal message and so on in time. Agilent E6474A software;  Data analysis software, used to resolve message, analysis signal, solve problem and so on. Actix Analyzer software.
  7. 7. 7 Confidential Information of Huawei. No Spreading without Permission. Course Contents Chapter 1 Single site verification overview Chapter 2 Single site verification preparation Chapter 3 Single site verification Chapter 4 Problem example for site verification Security Level: Internal
  8. 8. 8 Single Site Verification Preparation  Before the single site verification, we should only ensure the following conditions have been met. Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  Alarm Check  Cell Status Check  Parameter Check
  9. 9. 9 Single Site Verification Preparation Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  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.
  10. 10. 10 Single Site Verification Preparation Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  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.
  11. 11. 11 Single Site Verification Preparation Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal  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: the scrambling code, power setting, neighbor cell list, handover parameter etc.
  12. 12. 12 Confidential Information of Huawei. No Spreading without Permission. Course Contents Chapter 1 Single site verification overview Chapter 2 Single site verification preparation Chapter 3 Single site verification Chapter 4 Problem example for site verification Security Level: Internal
  13. 13. 13 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Site Verification Items:  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.
  14. 14. 14 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 1  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.
  15. 15. 15 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 2  Items: PS Detach  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
  16. 16. 16 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 3  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
  17. 17. 17 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  18. 18. 18 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal Test Process 4  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.
  19. 19. 19 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Notes: 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: Ec = Ec/Io + Io
  20. 20. 20 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  21. 21. 21 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 5  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
  22. 22. 22 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 6  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
  23. 23. 23 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 7  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
  24. 24. 24 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 8  Items: SMS (MT & MO)  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
  25. 25. 25 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 9  Items: Cell reselection parameters, LAC/RAC, Neighbor List  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:  Cell reselection parameters: SIB3  LAC/RAC: SIB1  Neighbor list: SIB 11
  26. 26. 26 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 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
  27. 27. 27 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 11  Items: Antenna swapping test  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
  28. 28. 28 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  29. 29. 29 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  Test Process 12  Items: Soft handover (Voice, VP, PS)  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
  30. 30. 30 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  31. 31. 31 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  32. 32. 32 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal  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.
  33. 33. 33  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 Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal 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.
  34. 34. 34  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. Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  35. 35. 35  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. Confidential Information of Huawei. No Spreading without Permission. Single Site Verification Security Level: Internal
  36. 36. 36 Chapter 1 Single site verification overview Chapter 2 Single site verification preparation Chapter 3 Single site verification Chapter 4 Problem example for site verification Confidential Information of Huawei. No Spreading without Permission. Course Contents Security Level: Internal
  37. 37. 37 Problem Example for Site Verification  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 Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal before.
  38. 38. 38  Scrambling Code Setting is wrong  The Scrambling Code may be wrong in RNC, check the Confidential Information of Huawei. No Spreading without Permission. Answers Security Level: Internal 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.
  39. 39. 39  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. Confidential Information of Huawei. No Spreading without Permission. Answers Security Level: Internal
  40. 40. 40 Confidential Information of Huawei. No Spreading without Permission. Security Level: Internal

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