If the progress reaches 100%, the BTS software is activated successfully and starts to reset. Check whether the alarm GSM Cell out of Service (Alarm ID: ALM-21801) is generated on the upgraded BTS. If the alarm is generated, wait five minutes for the alarm to clear. If the alarm clears, the BTS is upgraded successfully. If the alarm persists, the upgrade fails.
If the progress does not reach 100% and a failure message is displayed, the upgrade fails. For details about the upgrade failure, see section 7.3"How to Handle the BTS Software Upgrade
Failure?"
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5
Upgrade Verification
5.1 Verification Checklist
Figure 1.1 describes items to be verified after the upgrade and the verification criteria. Figure 1.1 Verification checklist
No. Item Criterion
1 Checking the Alarm of the BTS
After the upgrade, new alarms are not reported. 2 Performing Dialing Tests The tests are passed.
3 Analyzing Performance Counters
Compared with the performance counters before the upgrade, the performance counters within one hour after the upgrade and in the busy hours of the next day do not deteriorate.
5.2 Checking the Alarm of the BTS
After the upgrade, check for alarms by referring to section 3.7"Checking and Backing Up BTS Alarms", and compare the alarms with those reported before the upgrade. If new alarms are generated, see the BSC6900 LMT Online Help.
On the BSC6900 LMT, click Help. In the displayed BSC6900 LMT Online Help, see the BSC6900 GSM Alarm Reference to troubleshoot the BTS.
5.3 Performing Dialing Tests
After the software upgrade is complete, the contractor of the customer performs the dialing tests. During the dialing tests, anomalies such as call drop, one-way audio, or noise are not experienced.
5 Upgrade Verification
Upgrade Guide (V100R009 or V100R012 to V100R013,Within V100R013, M2000-Based)
5.4 Analyzing Performance Counters
After a version upgrade is complete, measure performance counters for more than two measurement periods during busy hours. One measurement period usually lasts for one hour or half an hour. Compare statistics of the performance counters with statistics of those measured during the same period of time one week before the upgrade. If statistics of the performance counters do not fluctuate noticeably, this upgrade is successful. The performance counters are as follows:
1. Traffic volume (difference not more than 15%): Traffic Volume on TCH, Throughput of Downlink GPRS RLC Data Blocks, and Throughput of Downlink EGPRS RLC Data Blocks
2. Call setup success rate (difference not more than 5%): TCH Seizure Requests (Traffic Channel), Failed TCH Seizures due to Busy TCH (Traffic Channel), and Successful TCH Seizures (Traffic Channel)
3. Call drop rate (difference not more than 0.4%): Call Drops on Traffic Channel, Call Drops due to Equipment Failure (Traffic Channel), Call Drop Rate on TCHF per cell, and Call Drop Rate on TCHH per cell
4. Handover success rate (difference not more than 1%): Success Rate of Incoming Internal Inter-Cell Handovers, Success Rate of Outgoing Internal Inter-Cell Handovers, and Successful TCH Seizures in TCH handovers (Traffic Channel)
5. Congestion rate (difference not more than 5%): Failed TCH Seizures in TCH Handovers due to Busy TCH (Traffic Channel), Congestion Rate on SDCCH per CELL (due to Busy), Failed SDCCH Seizures due to Busy SDCCH, and Congestion Rate on TCH (All Channels Busy)
6. Assignment success rate (difference not more than 2%): Successful Downlink Assignment Rate and Successful Uplink Assignment Rate
6
Version Rollback
If the network malfunctions after the upgrade or the KPIs after the upgrade do not meet the operator's requirements, roll back the version and report the event to Huawei.
For a multi-mode base station, if multiple modes that have been upgraded to the target versions need to be rolled back, roll back all the modes to the source versions.
On the M2000 client, click and select the NE, then run the DSP BTSSWRBKCAP command to check whether a fast version rollback can be implemented. If the result shows that there is a software version that can be rolled back, perform the steps described in section 6.1"Performing a Fast Version Rollback." If there is no version that can be rolled back, perform the steps described in section 6.2"One-Click Rollback."
If network reconfiguration is required after the upgrade is complete, contact Huawei for
technical support before performing the version rollback.
V100R013 supports the integrity protection of BTS software function, but V100R009 and
V100R012 do not support the integrity protection of BTS software function. When rolling V100R013 back to V100R009 or V100R012, ensure that the integrity protection of BTS software function is disabled. Otherwise, the rollback fails. Run the MML command SET BTSDIGSIGN to set the integrity protection of BTS software function.
7 FAQs
Upgrade Guide (V100R009 or V100R012 to V100R013,Within V100R013, M2000-Based)
Before performing fast version rollback, run the MML command LST CMCTRLSW to check whether configuration management control switch on the BSC is enabled. If the switch is enabled, fast version rollback will fail. Therefore, before fast version rollback, run the SET CMCTRLSW command to disable the configuration management control switch.
Fast version rollback is faster than one-click version rollback because loading software is not required during fast version rollback. To perform a fast version rollback, perform the
following steps:
Step 1 Log in to M2000 client, and then choose Software > NE Upgrade Task Management > NE