summary of corrections and enhancements metro

DN0821834 Issue 2-1 en 31/10/09 © Nokia Siemens Networks 1 (6) © Nokia Siemens Networks Confidential

Summary of Corrections and Enhancements

Id: CXM7.0 MP1.0 Product Family: Base Stations

Product: MetroSite EDGE BTS Release: CXM7.0


Table of Contents 1. Corrections .....................................................................................................................................3

1.1 1830CNESPE07 Calls are possible on a GSM TRX, which is locally blocked, after STIRC enable/disable (10161ESPE06).......................................................................................................................... 3 1.2 1831CNESPE07 After SW upgrade; Unable to perform TRX test on the MetroSite (10620ESPE06, NA04202512)........................................................................................................................... 3 1.3 1838CNESPE07 Repeated TAC in AHS calls when A-bis link is disturbed on GSM hardware (3035C01) ........................................................................................................................................... 3 1.4 1863CNESPE07 MOS value is lower in Ater interface (11386ESPE07, NA04511287, NA04539154)...................................................................................................................................................... 4 1.5 3133CNESPE06 MetroSite BTS not passing transmission alarms (11752ESPE06, NA04439425)...................................................................................................................................................... 4 1.6 3192CNESPE06 Cannot make a call on the second MetroSite in the chain following a BTS SW upgrade (NA04543929)................................................................................................................................ 4 1.7 3193CNESPE06 Voice quality issues on several BSCs after new BTS sw load (NA04538392, NA04571961, NA04577966) ...................................................................................................... 4

2. New / Changed functionality...........................................................................................................5 3. 3rd party corrections.......................................................................................................................5 4. Previous deliveries for the release .................................................................................................5 5. Appendices / References ...............................................................................................................5

Contact

Contact your local Nokia Siemens Networks support

Summary of changes

29/10/2009 2-1 First Version CXM7.0 MP1.0


Purpose

The purpose of this document is to give a brief summary of the CXM7.0 MP1.0 Maintenance Package (MP) content.

1. CORRECTIONS

1.1 1830CNESPE07 Calls are possible on a GSM TRX, which is locally blocked, after STIRC enable/disable (10161ESPE06)

Original problem: If STIRC is enabled for the 1st sector in a Non hopping 2+2 GSM MetroSite BTS configuration. Alarm "7606 TRX FAULTY: Non EDGE TRX device type used accidentally in Edge Capable Mode" is reported for TRX 1. TRX 1 goes into BL-TRX at BSC. Alarm "7603 BTS FAULTY: Non EDGE TRX device type used accidentally in Edge Capable Mode" is reported after some time. 1st sector and BCCH TRX are in BL-BTS state at BSC. BCCH transmission is stopped. When the non BCCH TRX (TRX1) is blocked from BTS manager the BCCH transmission starts for around 20 seconds and then stops - this is the expected behaviour. When STIRC is disabled from the 1st sector TRX 1 remains in local block state and TRX 2 comes up in working state. Alarms related to STIRC are cancelled. However the locally blocked TRX 1 is in WO state at the BSC and calls are then allocated to that TRX. Description of the correction: Local blocking alarm is resent to BSC so that the TRX remains in its state.

1.2 1831CNESPE07 After SW upgrade; Unable to perform TRX test on the MetroSite (10620ESPE06, NA04202512)

Original problem: After the BTS SW is upgrade from CXM4.1 CD4.0 to CXM5 CD4.0 occasionally the TRX test from the BSC for GMSK always fails if STIRC is enabled. The same TRX test works with CXM4.1 CD4.0. The TRX test functions correctly with CXM5 CD4.0 if the STIRC feature is not used. The test functions correctly with CXM4.1 CD4.0 both with and without the STIRC feature active. Description of the correction: A correction is added to modify the diversity of the TRX corresponding to STIRC & RDIV for AIR1 & AIR3 loops

1.3 1838CNESPE07 Repeated TAC in AHS calls when A-bis link is disturbed on GSM hardware (3035C01)

Original problem: A high number of Time Alignment Commands (15-20) are seen, when the Abis link is disconnected for short durations (between 300-900ms). The issue is seen only with Non EDGE TRX HW. Description of the correction: The TAC algorithm is corrected.


1.4 1863CNESPE07 MOS value is lower in Ater interface (11386ESPE07, NA04511287, NA04539154)

Original problem: Poor PESQ MOS P.862.1 Scores have been seen for Normal non-TFO HR calls using the MetroSite BTS

Description of the correction: The BTS SW is modified so that the time alignment request is enhanced, the timer is changed if MGW is used.

1.5 3133CNESPE06 MetroSite BTS not passing transmission alarms (11752ESPE06, NA04439425)

Original problem Supervisory Substations (SSS) are being used to collect external alarms from Radio Access sites. Originally these were being supervised (i.e. BTS polling) by Talk family base stations using their Q1 connections. When one of these Talk sites was replaced by an UltraSite the alarms were no longer transferred to the BSC. A remote session confirmed that the external alarms were active at the SSS, but that these could not be seen locally at the UltraSite using BTS Manager, or at the BSC. Originally this problem was seen with an UltraSite EDGE BTS but because of the similar design the issue is also possible for MetroSite EDGE BTS. Description of the correction A new command answer for legacy Q1 equipments has been added. The status command is now sent for TMS devices and depending on the response, all the FEs are now checked.

1.6 3192CNESPE06 Cannot make a call on the second MetroSite in the chain following a BTS SW upgrade (NA04543929)

Original problem Two chained MetroSite EDGE BTS are upgraded from CXM4.1 CD4.0 to CXM6 CD2.0 sometimes the second BTS in chain will stop to transmitting BCCH. Ongoing calls remain connected; however, no new calls can be originated. Only BTS alarm 7725 “Traffic Channel Activation Failure” is raised. Description of the correction The function to start the BCCH transmission was called even when the timer had expired. The function call has been modified. 1.7 3193CNESPE06 Voice quality issues on several BSCs after new BTS sw load (NA04538392, NA04571961, NA04577966)

Original problem Some customers have complained of audio muting problems during Mobile Originating (MOC) to Mobile Terminating Calls (MTC) using certain mobile models. MOC is made and end-user begins talking, when there is a pause in the conversation and speech starts again, end-user will hear a 5 to 10 second muting. Problem can be heard in both directions MOC/MOT. Problem is observed after CXM6 CD1.0 activation, on 850MHz or 1900MHz band with UL DTX active and AMR HR only. Description of the correction DTX algorithm is changed so that if two or more simultaneous good speech blocks are observed in the UL then the speech path is enabled without the need to receive Onset block.


2. NEW / CHANGED FUNCTIONALITY

None

3. 3RD PARTY CORRECTIONS

None

4. PREVIOUS DELIVERIES FOR THE RELEASE

CXM7.0

CXM7.0 MP 1.0

Release Date

30/06/2009 29/10/2009

BTS Software Products

BTS Software A5/0

BTS_C801.071 07.00-176

BTS_C801.153 07.01-00

BTS Software A5/1 and A5/3

BTS_C801.072 07.00-179

BTS_C801.154 07.01-03

BTS Manager Application

BTS Manager CX7 (7.0.8)

BTS Manager CX7 MP1.0 (7.0.14)

Related Products

5. APPENDICES / REFERENCES


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