sw release 13 ericsson umts system improvements

LZT1380911 R1A

1 W13A Introduction and Basic Features

Objectives

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text in the footer area© Ericsson AB 2012 | W13A Introduction and Basic Features | LZU1089113 R1A | Figure 1-1

Objectives of Chapter 1

After this chapter the participants will be able to:

1 Give an overview of the W13A Software Release

1.1 Describe the challenges facing Mobile Operators in 2013

1.2 List the highlights of the W13A Software Release

1.3 Describe the Basic Features included in the W13A Software

Release

Figure 1-1: Objectives of Chapter 1

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WCDMA RAN W13 Delta

- 2 - © Ericsson AB 2012 LZT1380911 R1A

1 WCDMA RAN W13 INTRODUCTION

It is predicted that by the end of 2013 the number of users of social networks will

reach 1.5 billion and smart phone sales will exceed 970 million. Mobile

Operators must be ready to meet the challenge of providing Networks that allow

a huge number of users to access internet services like Facebook and Twitter

using their Smartphones. Also in 2013 the number of LTE users is expected to

exceed 3 billion. All these factors illustrated in Figure 1-2 below represent a

major challenge for Mobile Operators. Slide title

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Challenges for Mobile Operators in 2013

2013

970

>3 billion users

Smart Sales (millions)

1.5

billion

Social

Network

users

Figure 1-2: Challenges for Mobile Operators in 2013

The WCDMA RAN W13 release brings significant enhancements to end user

experience and network efficiency designed to meet the challenges faced by

Mobile Operators in 2013. For Smartphones there are improvements in the areas

of efficiency & performance, lower latency and network quality (improved

KPIs). In order to match the increase of EUL capabilities in devices, W13 brings

support for more EUL users and significantly improves EUL capacity and

performance.

From a network perspective there are solutions for higher capacity, efficient use

of spectrum, better coverage and Mobile Broadband Everywhere. More RBS

configurations are supported and there are capacity enhancements for the

RBS6000, RNC and newly introduced Evo Controller 8200/RNC.

To support customers that are deploying LTE networks in parallel with

WCDMA, there is an improvement to the Release with Redirect to LTE W12

feature.

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W13A Introduction and Basic Features

LZT1380911 R1A © Ericsson AB 2012 - 3 -

As with all Ericsson WCDMA RAN software releases, the W13 release is made

up of the W13A and W13B releases. Some of the highlights of the W13A release

which will be covered in this course are illustrated in Figure 1-3 below. Slide title

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2012 2013

WCDMA RAN W13 Highlights

• Multi RAB Observability

• Uplink Fast Congestion Control

• Improved release with redirect to LTE

• UE Real Time Trace

• Increased HS users and codes per cell

• Improved Interference Suppression

W13A

Figure 1-3: WCDMA RAN W13A Highlights

For the purposes of this course the W13A system improvements and optional

features are divided into the chapters listed below:

Chapter 1: W13A RAN Basic Features

Chapter 2: W13A RNC Optional Features

Chapter 3: W13A RBS Optional Features and Hardware

Chapter 4: W13A WCDMA/LTE Interworking Features

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2 W13A RAN BASIC FEATURES

The WCDMA RAN basic features impacted by the W13 Release are listed in

Figure 1-4 below. Slide title

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W13 RAN Basic Features

Number Name Comment

FAJ 121 409 Statistical Observability Not modified

FAJ 121 2710 Multi RAB Observability New

FAJ 121 2636 System Improvements in WCDMA RAN W13.0 Release New

Contains 11 System Improvements

Kept for legacy functionality.

New PM counters are part of the features they are related to.

Figure 1-4: W12 RAN Basic Features

In previous RAN releases the ‘Statistical Observability’ (FAJ 121 409) basic

feature was updated in light of the new counters introduced to support new

features. From W13A onwards new PM counters are part of the features that

they are related to with the ‘Statistical Observability’ basic feature kept just for

legacy functionality.

The ‘Multi RAB Observability’ (FAJ 121 2710) new basic feature introduces

new RNC counters to monitor the performance of multi RAB calls.

The ‘System Improvements in ‘WCDMA RAN W13 Release’ (FAJ 121 2363)

new basic feature contains 11 System Improvements.

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2.1 Multi RAB Observability

The ‘Multi RAB Observability’ (FAJ 121 2710) new W13A basic feature makes

it possible for Operators to monitor the accessibility and retainability of Radio

Access Bearers while in multi RAB calls. For the purposes of this feature a multi

RAB call is defined as a call which includes a CS RAB and at least one PS RAB

as illustrated in Figure 1-5 below. This feature does not monitor the performance

of multi RAB calls without CS RABs (n*PS calls). Slide title

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Multi RAB Observability

ENIQ

3 new Accessibility KPIs

5 new Retainability KPIs

ManagedElement

+-RncFunction

+-UtranCell

30 new counters

(Primary system profile)

+-UeRc

8 new counters

(user defined profile)

CS RAB

+

PS RAB

RNC

3GPP release 5 or higher to support

Multi RAB accessibility from URA KPI

Now possible to monitor

the performance of multi

RAB calls

Figure 1-5: Multi RAB Observability

This feature introduces 30 new UtranCell counters which are included in the

RNC Primary System defined subscription and 8 new UeRc counters that require

a user defined profile for activation as illustrated in Figure 1-5 above. The ENIQ

predefined network performance reports are updated to include 3 new

Accessibility and 5 new Retainability KPIs using these new counters.

The new accessibility KPI (Multi RAB accessibility from URA), introduced

within this feature requires that UEs, while establishing new CS RABs from

URA_PCH state, include the ‘Establishment Cause’ Information Element in the

Cell Update message as specified from 3GPP release 5 onwards. It is assumed

that the majority of UEs in the network are release 5 or higher when the feature is

implemented.

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The UtranCell PEG counters that are introduced by the Multi RAB Observability

basic feature are listed in Figure 1-6 and Figure 1-7 below.

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UtranCell PEG Counters (1)

System Releases:

pmSystemRelMultiSpeech

pmSystemRelMultiAmrNb

pmSystemRelMultiAmrWb

pmSystemRelMultiPsInt

pmSystemRelMultiSpeechToPsInt

pmSystemRelMultiPsIntToSpeech

pmSystemRelMultiPsIntToAmrNb

pmSystemRelMultiPsIntToAmrWb

Normal Releases:

pmNormalRelMultiSpeech

pmNormalRelMultiAmrNb

pmNormalRelMultiAmrWb

pmNormalRelMultiPsInt

pmNormalRelMultiSpeechToPsInt

pmNormalRelMultiPsIntToSpeech

pmNormalRelMultiPsIntToAmrNb

pmNormalRelMultiPsIntToAmrWb

Figure 1-6: UtranCell PEG Counters (1)

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UtranCell PEG Counters (2)

RAB Establishment Attempt:

pmNoRabEstAttemptMultiSpeech

pmNoRabEstAttemptMultiAmrNb

pmNoRabEstAttemptMultiAmrWb

pmNoRabEstAttemptMultiPsInt

RAB Establishment Success:

pmNoRabEstSuccessMultiSpeech

pmNoRabEstSuccessMultiAmrNb

pmNoRabEstSuccessMultiAmrWb

pmNoRabEstSuccessMultiPsInt

NAS Signaling Release:

pmNoSystemNasSignReleaseMultiPs

pmNoNormalNasSignReleaseMultiCs

pmNoSystemNasSignReleaseMultiCs

pmNoNormalNasSignReleaseMultiPs

Cell Update:

pmNoCellUpdateAttMultiCs

pmNoCellUpdateSuccMultiCs

Figure 1-7: UtranCell PEG Counters (2)

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The details of the UtranCell PEG counters listed in Figure 1-6 and Figure 1-7 are

given in the table below:

Name Description

pmSystemRelMultiSpeech

System-initiated releases of CS Conversational Speech RABs during a multi-RAB call (CS + n x PS). Includes AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB.

pmSystemRelMultiAmrNb System-initiated releases of AMR-NB Multi-mode RABs (both single- and multi-rate) during a multi-RAB call (CS + n x PS).

pmSystemRelMultiAmrWb System-initiated releases of AMR-WB RABs during a multi-RAB call (CS + n x PS).

pmNormalRelMultiSpeech Normal releases of CS Conversational Speech RABs during a multi-RAB call (CS + n x PS).

pmNormalRelMultiAmrNb Normal releases of AMR-NB Multi-mode RABs (both single- and multi-rate) during a multi-RAB call (CS + n x PS).

pmNormalRelMultiAmrWb Normal releases of AMR-WB RABs during a multi-RAB call (CS + n x PS).

pmSystemRelMultiPsInt System-initiated releases of PS Interactive RABs during a multi-RAB call (CS + n x PS).

pmNormalRelMultiPsInt Normal releases of PS Interactive RABs during a multi-RAB call (CS + n x PS).

pmSystemRelMultiSpeechToPsInt

System-initiated releases of CS Conversational Speech RABs during a multi-RAB call (CS + n x PS) for which the PS RAB(s) was retained. Includes AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB.

pmNormalRelMultiSpeechToPsInt

Normal releases of CS Conversational Speech RABs during a multi-RAB call (CS + n x PS) for which the PS RAB(s) was retained. Includes AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB.

pmSystemRelMultiPsIntToSpeech

System-initiated releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only the CS RAB was retained. Includes AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB.

pmSystemRelMultiPsIntToAmrNb System-initiated releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only an AMR-NB Multi-mode RAB (single- or multi-rate) was retained.

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Name Description

pmSystemRelMultiPsIntToAmrWb System-initiated releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only an AMR-WB RAB was retained.

pmNormalRelMultiPsIntToSpeech

Normal releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only the CS RAB was retained. Includes AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB.

pmNormalRelMultiPsIntToAmrNb Normal releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only an AMR-NB Multi-mode RAB (single- or multi-rate) was retained.

pmNormalRelMultiPsIntToAmrWb Normal releases of PS Interactive RABs during a multi-RAB call (CS + n x PS) for which only an AMR-WB RAB was retained.

pmNoCellUpdateAttMultiCs Attempted Cell Updates towards a CS CN for which this cell was the best cell in the active set when establishing a multi-RAB call (CS + PS).

pmNoCellUpdateSuccMultiCs Successful Cell Updates towards a CS CN for which this cell was the best cell in the active set when establishing a multi-RAB call (CS + PS).

pmNoNormalNasSignReleaseMultiCs

Successful normal releases of the NAS signalling sequence at call setup towards a CS CN for which this cell was the best cell in the active set, when establishing a multi-RAB call (CS + n * PS) from the originating states URA_PCH, CELL_FACH and CELL_DCH.

pmNoSystemNasSignReleaseMultiCs

System-initiated releases of the NAS signalling sequence at call setup towards a CS CN for which this cell was the best cell in the active set, when establishing a multi-RAB call (CS + n * PS) from the originating states URA_PCH, CELL_FACH and CELL_DCH.

pmNoNormalNasSignReleaseMultiPs

Successful normal releases of the NAS signalling sequence at call setup towards a PS CN for which this cell was the best cell in the active set, when establishing a multi-RAB call (CS + n * PS) from the originating state CELL_DCH.

pmNoSystemNasSignReleaseMultiPs

System-initiated releases of the NAS signalling sequence at call setup towards a PS CN for which this cell was the best cell in the active set, when establishing a multi-RAB call (CS + n * PS) from the originating state CELL_DCH.

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Name Description

pmNoRabEstAttemptMultiSpeech

RAB establishment attempts that were part of a multi-RAB call (CS + n * PS), for all CS Conversational Speech RABs (including AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB).

pmNoRabEstAttemptMultiAmrNb RAB establishment attempts that were part of a multi-RAB call (CS + n * PS), for the AMR-NB Multi-mode RAB (both single- and multi-rate).

pmNoRabEstAttemptMultiAmrWb RAB establishment attempts that were part of a multi-RAB call (CS + n * PS), for the AMR-WB RAB.

pmNoRabEstSuccessMultiSpeech

Successful RAB establishments that were part of a multi-RAB call (CS + n * PS), for all CS Conversational Speech RABs (including AMR Single-mode 12.2, AMR-NB Multi-mode single- and multi-rate, and AMR-WB).

pmNoRabEstSuccessMultiAmrNb Successful RAB establishments that were part of a multi-RAB call (CS + n * PS), for the AMR-NB Multi-mode RAB (both single- and multi-rate).

pmNoRabEstSuccessMultiAmrWb Successful RAB establishments that were part of a multi-RAB call (CS + n * PS), for the AMR-WB RAB.

pmNoRabEstAttemptMultiPsInt RAB establishment attempts that were part of a multi-RAB call (CS + n * PS), for the PS Interactive RAB.

pmNoRabEstSuccessMultiPsInt Successful RAB establishments that were part of a multi-RAB call (CS + n * PS), for the PS Interactive RAB.

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WCDMA RAN W13 Delta


The UeRc PEG counters that are introduced by the Multi RAB Observability

basic feature are listed in Figure 1-8 below.

Slide title

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minimum 24 pt

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minimum 20 pt







UeRc PEG Counters (1)

UeRc Releases Releases:

pmNormalReleaseSource

pmSystemReleaseSource

pmReconfSysRelSource

pmReconfSysRelTarget

UeRc Reconfigurations:

pmReconfSuccSource

pmReconfSuccTarget

pmReconfAttSource

pmReconfAttTarget

Figure 1-8: UeRc PEG Counters

The details of the UeRc PEG counters listed in are given in the table below:

Name Description

pmNormalReleaseSource Indicates normal connection releases in which the source configuration was the configuration represented by this UeRc.

pmSystemReleaseSource Indicates System-initiated connection releases in which the source configuration was the configuration represented by this UeRc

pmReconfSuccSource Indicates successful reconfigurations in which the source configuration was the configuration represented by this UeRc.

pmReconfSuccTarget Indicates successful reconfigurations in which the target configuration was the configuration represented by this UeRc

pmReconfSysRelSource Indicates reconfiguration attempts that resulted in a System-initiated connection release for the source configuration (UeRc).

pmReconfSysRelTarget Indicates reconfiguration attempts that resulted in a System-initiated connection release for the target configuration (UeRc).

pmReconfAttSource Indicates reconfiguration attempts from the source configuration (UeRc).

pmReconfAttTarget Indicates reconfiguration attempts to the target configuration (UeRc).

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2.2 System Improvements in WCDMA RAN W13.0 Release

The System Improvements that make up the ‘System Improvements in WCDMA

RAN W13.0 Release’ (FAJ 121 2636) basic feature are listed in Figure 1-9

below.

Slide title

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System Improvement Node

Improved From-State Checks for RNC Upgrade

Improved Iur Retainability

Low Rate DCH User Admission

RNC

O&M Capacity Improvement

Battery test

Configurable Antenna System Voltage 12/17/30 VDC

Joint support for 4wRX and DC-HSDPA in a Node

RBS 6000 MMI Ph2, LED and Maintenance Button for the RU

Universal RBB

RBS Power Blossoming

WCDMA Configurations for DUW41/31/11

RBS

System Improvements in WCDMA RAN W13.0 Release

Figure 1-9: System Improvements in WCDMA RAN W13.0 Release

The system improvements listed in Figure 1-9 above do not require a license.

Each of these system improvements will be explained in this chapter.

The O&M Capacity Improvement is applicable to both RNC and RBS.

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WCDMA RAN W13 Delta


2.2.1 Improved From-State Checks for RNC Upgrade

Improved from-state checks are introduced for the RNC upgrade in W13A. If a

critical inconsistency is found and cannot be automatically fixed the upgrade will

be rejected, otherwise the data will be automatically corrected and upgrade will

proceed as illustrated in Figure 1-10 below. Slide title

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Improved From-State Checks for RNC Upgrade

Software Upgrade Start

Critical

inconsistency

found

?

automatically

fixed

?

Perform Upgrade

Software Upgrade End

No Yes

YesReject Upgrade

No

Figure 1-10: Improved From-State Checks for RNC Upgrade

The procedure illustrated in Figure 1-10 above will be executed automatically at

upgrade if there is enough memory for execution of pre-check mechanism.

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2.2.2 Improved Iur Retainability

The ‘Improved Iur Retainability’ system improvement ensures that Iur

connections will not be dropped as long as there are other available radio link sets

under the Serving RNS, for the following scenarios:

- Synchronization failure in RLS belonging to other vendor’s Drift RNC

- SCCP error over Iur due to Transport Network disturbances

(e.g. Iur with transport network disturbances)

- Radio link failure not related to synchronization in the Drift RNC

To retain radio links for these scenarios the Operator must set the

‘retainRlIurFailure’ parameter to ON as illustrated in Figure 1-11 below.

Slide title

minimum 32 pt

(32 pt makes 2 rows


minimum 24 pt

Bullets level 2-5

minimum 20 pt

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text in the footer area© Ericsson AB 2012 | W12 RAN Basic Features | LZU1088920 R1A | Figure 2-12

Improved Iur Retainability

SRNCDRNC

Iur

ManagedElement

+-RncFunction

+-IurLink

retainRlIurFailure= OFF {ON, OFF}

retainRlIurFailure= ON

connections with non-faulty radio links

in the SRNC will be retained when an

SCCP disconnection or radio link

failure (with cause different from

Synchronization) for an out of

Synchronization radio link set is

signaled by this IurLink (acting as

DRNC).

Figure 1-11: Improved Iur Retainability

If the ‘retainRlIurFailure’ parameter is ON, connections with non-faulty radio

links in the SRNC will be retained in all the scenarios listed above.

This System Improvement should produce a lower drop rate over the Iur when

having the scenarios mentioned. However UL interference could be higher when

this improvement is enabled in the cells under DRNC. The reason is that

connection is kept when before was released, and hence the UE can be under

DRNC cell coverage without being power controlled for that cell.

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2.2.3 Low Rate DCH User Admission

Although present before W13A the ‘sf128Adm’ and ‘sf64AdmUl’ parameters

had no impact on admission control. Now in W13A these parameters work as

intended to limit connections using SF 128 in the downlink and SF 64 in the

uplink as illustrated in Figure 1-12 below.

Slide title

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Low Rate DCH User Admission

ManagedElement

+-RncFunction

+-UtranCell

sf128Adm = 128 { 0..128}

sf64AdmUl = 100 { 0..100 }

SF 128

SF 64

Admission limit for non-

guaranteed traffic class

connections with DL SF = 128.

Admission limit for non-

guaranteed traffic class

connections with UL SF = 64.

‘sf128Adm’ and

‘sf64AdmUl’

parameters work as

intended in W13A

Figure 1-12: Low Rate DCH User Admission

This system improvement makes it possible for the operator to limit the number

of PS Interactive radio links using 16kbps. To achieve the same behavior as

before W13A the ‘sf128Adm’ and ‘sf64AdmUl’ parameters must be set to the

maximum value, that is 128 and 100 respectively. It is important to check these

parameter values before the W13A upgrade.

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2.2.4 O&M Capacity Improvement

The legacy Java Virtual Machine (JVM) software component is replaced in

W13A with a more powerful version. This system improvement will off-load the

O&M MP and generally improve O&M capacity in all RNC variants and DU

based RBSs as illustrated in below.

Slide title

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minimum 24 pt

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minimum 20 pt







O&M Capacity Improvement

More powerful Java Virtual Machine software component

DU based RBS All RNC Variants

Significant

O&M MP load

reduction

during O&M

load peaks.

3.5 million

counters

possible

Figure 1-13: O&M Capacity Improvement

During O&M load peaks, the processor load on the O&M MP will decrease

significantly as compared with legacy JVM. In the RNC, the maximum limit of

3.5 million performance management counters per reporting period will be

reachable in most traffic models as illustrated in Figure 1-13 above.

External O&M interfaces will remain fully backwards compatible with this

system improvement.

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WCDMA RAN W13 Delta


2.2.5 Battery Test

The ‘Battery Test’ system improvement allows the operator to have continuous

monitoring of the battery condition. With this basic feature the Operator is

notified via the OSS-RC of faulty batteries, insufficient PSU capacity and

unreliable mains power supply. The aim of this feature is to inform the operator

when the batteries start to degrade so that they can be changed when needed

instead of periodically as illustrated in Figure 1-14 below. Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt


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Battery Test

RBS

Faulty battery

Insufficient PSU capacity

Unreliable mains power supply

Batteries changed when needed instead of periodically

Lower battery maintenance cost

ManagedElement

+-EquipmentSupportFunction

+-BatteryBackup

batteryTestIsRunning= TRUE

OSS-RC

Figure 1-14: Battery Test

This basic feature introduces the new ‘batteryTestIsRunning’ read-only attribute

of the MO ‘BatteryBackup’ MO which shows ‘TRUE’ when the tests are running

as illustrated in Figure 1-14 above.

This feature also includes supervision of battery recharging which also helps with

the detection of degraded batteries. This enhancement guarantees correct battery

test result when inter-working with external BBS (Battery Backup System) /BBU

(Battery Backup Unit) solutions and when the battery is shared between several

RBSs.

Overall this basic feature will give a lower battery maintenance cost.

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2.2.6 Configurable Antenna System Voltage 12/17/30 VDC

The ‘Configurable Antenna System Voltage 12/17/30 VDC’ system improvement

introduces the new ‘dcVoltage’ parameter to the ‘ExternalTma’ MO as illustrated

in Figure 1-15 below. This new parameter allows the operator to explicitly

configure the DC voltage for antenna system configurations where the system

cannot implicitly determine a DC voltage to be used.

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt







Configurable Antenna System Voltage 12/17/30 VDC

ManagedElement

+-Equipment

+-SectorAntenna

+-ExternalTma

dcVoltage = 0 { 0 or 1 }

0 = DC_17V_OR_DC_30V

1 = DC_12V

Figure 1-15: Configurable Antenna System Voltage 12/17/30 VDC

The default setting of ‘0’ for the ‘dcVoltage’ parameter as illustrated in Figure

1-15 above should be used for antenna systems using 17 or 30V DC whereas the

‘1’ setting should be used for 12V DC systems.

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WCDMA RAN W13 Delta


2.2.7 Joint support for 4wRX and DC-HSDPA in a Node

Before W13A the Radio Building Block (RBB) RBB24_1A configuration can

only be configured with the two configurations: 3x1 4wRx with single DUW and

3x2 4wRx with dual DUW, shown in Figure 1-16 below.

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt







Joint support for 4wRX and DC-HSDPA in a Node

Data 1

RX

TX

RF A

RF B

RXA I/O

RXA Out

Data 1

RX

TX

RF A

RF B

RXA I/O

RXA Out

TX A / RX A

TX C / RX C

1

2

RX B

RX D

Data 2

RXB I/O

Data 2

RXB I/O

Configuration Rules:

1) One DUW can handle max 12 RX branches.

2) Max 2 DUW / RBS

3) One node can have 1-6 sectors with RU or 1-12 sectors with RRU

4) A macro node can mix RU and RRU

5) Any sector can have 1-4 carriers

6) Any mix of 2 or 4 RX branches / carrier and sector is allowed.

7) Any mix of 1 or 2 TX branches / carrier and sector is allowed.

RBB24_1A

Figure 1-16: Joint support for 4wRX and DC-HSDPA in a Node

The ‘Joint support for 4wRX and DC-HSDPA in a Node’ W13A system

improvement introduces flexibility into the RBB24_1A configuration by

introducing a new option for selecting the number of RX branches. Now in

W13A the RBB24_1A can be configured for 1 to 4 carriers with 1 or 2 TXs and 2

or 4 RXs according to the rules listed in Figure 1-16 above.

With this system improvement Dual Carrier HSDPA and 4 Way RX diversity is

possible with the same Node.

An example configuration for a node with 3 sectors is explained below:

1 DUW can have 1-2 carriers with 2 RX branches, MC can be used

2 DUW can have:

1) 1-2 carriers with 4 RX branches. MC can not be used.

2) 3 carriers, 1 with 4 RX branches and 2 with 2 RX branches. MC can be used

for the 2 carriers with 2 RX branches.

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2.2.8 RBS 6000 MMI Ph2, LED and Maintenance Button for the RU

The ‘RBS 6000 MMI Ph2, LED and Maintenance Button for the RU’ system

improvement introduces software support for the maintenance button on the RUx.

As soon as the maintenance button is pushed the blue maintenance LED will start

to blink fast and the ‘technicianPresent’ attribute of the NodeBFunction MO will

change to ‘TRUE’ generating the ‘FieldTechnicianPresent’ alarm. If the button

is released before 2 seconds have elapsed the maintenance LED will turn off and

the NodeBFunction MO will change back ‘FALSE’ clearing the

‘FieldTechnicianPresent’ alarm. However if the button is held in for more than 2

seconds the maintenance LED will change to slow blinking. When the button is

released the LED will be full on indicating full maintenance mode where the

‘administrativeState’ of the RUx PlugInUnit MO is changed to ‘LOCKED’.

Pushing the maintenance button a second time will take the RU out of full

maintenance mode, turn off the maintenance LED, return the

‘administrativeState’ of the RUx PlugInUnit MO to ‘UNLOCKED’, set the

‘technicianPresent’ attribute of the NodeBFunction MO to ‘FALSE’ and clear the

‘FieldTechnicianPresent’ alarm as illustrated in Figure 1-17 below.

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt







- Maintenance (blue) LED fast blink

- NodeBFunction::technicianPresent = TRUE

- ‘FieldTechnicianPresent’ alarm raised

- Maintenance (blue) LED off

- NodeBFunction::technicianPresent = FALSE

- ‘FieldTechnicianPresent’ alarm ceased

- Maintenance (blue) LED change to slow blink

- Maintenance (blue) LED Full ON

- RUx PlugInUnit ‘administrativeState’ = LOCKED

RBS 6000 MMI Ph2, LED and Maintenance Button for the RU

!Button Pushed

After 2 sec

Released <2 sec

Release<7sec


- RUx PlugInUnit ‘administrativeState’ = UNLOCKED


- ‘FieldTechnicianPresent’ alarm ceasedSecond Push


- RU Restarted


- ‘FieldTechnicianPresent’ alarm clearedRelease>7sec

Figure 1-17: RBS 6000 MMI Ph2, LED and Maintenance Button for the RU

Holding the RUx maintenance button in for longer than 7 seconds will turn off

the maintenance LED, restart the RU and set the ‘technicianPresent’ attribute of

the NodeBFunction MO to ‘FALSE’ and clear the ‘FieldTechnicianPresent’

alarm as illustrated in Figure 1-17 above.

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WCDMA RAN W13 Delta


2.2.9 Universal RBB

In W12, one Radio Building Block (RBB) must be used for single-mode

operation while another RBB for mixed-mode operation. The read-only

‘mixedModeRadio’ attribute of the Sector MO is set by RBS system

automatically to ‘TRUE’ for mixed-mode RBBs and False for single-standard

RBBs as illustrated in Figure 1-18 below. This attribute is RBB specific and

can’t be changed by operator. Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt







Universal RBB

ManagedElement

+-NodeBFunction

+-Sector

mixedModeRadio (Configurable)

‘TRUE’ for mixed-mode

‘FALSE’ for single-standard

W13A

ManagedElement

+-NodeBFunction

+-Sector

mixedModeRadio (Read Only)

‘TRUE’ for mixed-mode RBBs

‘FALSE’ for single-standard RBBs

W12

Now possible to

reconfigure an RNS to

mixed-mode without

having to change the RBB.

Figure 1-18: Universal RBB

The ‘Universal RBB’ W13A system improvement allows the operator to

configure the ‘mixedModeRadio’ Sector MO attribute as illustrated in Figure

1-18 above. This means that there is no need to recreate sectors with different

RBB when changing to a mixed mode configuration. Since it is possible to pre-

cable for mixed mode but initially run as single standard this system

improvement makes it possible to reconfigure an RNS to mixed-mode without

having to change the RBB.

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2.2.10 RBS Power Blossoming

When a cell is unlocked in W13A the PCPICH power will ramp up from -18dBc

of the Maximum Output Power Capability to the configured power based on the

setting of an internal Ericsson System constant as opposed to a fixed rate of 1 dB

every 200 msec (5dB/sec) in W12. The default setting of this system constant

gives a PCPICH power ramping rate of 0.25 dB every 500 msec (0.5 dB/sec).

The PCPICH power ramping rates in W12 and W13A are compared in Figure

1-19 below. Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt






text in the footer area

Slower ramp up causes less

disturbances in surrounding cells

which improves call retainability KPIs

-18 d

Bc

W12 CPICH Power ramping:

1 dB every 200 msec (5dB/sec)

W13 CPICH Power ramping:

0.25 dB every 500 msec (0.5dB/sec)

Figure 1-19: RBS Power Blossoming

In W13A the PCPICH ramping starts after all the mandatory common channels

(FACH, RACH, PCH) are setup and the cell is ready for dedicated traffic as

opposed to between the setup of SCH and BCH as is the case in W12.

This slower ramp up causes less disturbances in surrounding cells which

improves call retainability KPIs.

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WCDMA RAN W13 Delta


2.2.11 WCDMA Configurations for DUW41/31/11

The ‘WCDMA Configurations for DUW41/31/11’ system improvement

introduces the DUW41, 31 and 11. The key technical specification of these new

DUW versions are illustrated in Figure 1-20 below.

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt






text in the footer area

DUW 11

–3x Gigabit Ethernet ports

– IP & ATM support

–128 CE DL / 128 CE UL

–252 Mbps DL

–24 Mbps UL

DUW 31


– IP support only

–768 CE DL / 512 CE UL

–252 Mbps DL

–92 Mbps UL

Width 31mm

DUW 41


– IP & ATM support

–768 CE DL / 768 CE UL

–336 Mbps DL

–138 Mbps UL

Width 62mm

Figure 1-20: WCDMA Configurations for DUW41/31/11

The version 2 DUWs illustrated in Figure 1-20 above introduce significant

increases in RBS baseband capacity.

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3 SUMMARY

Slide title

44 pt


minimum 24 pt

Bullets level 2-5

minimum 20 pt







Summary of Chapter 1

The participants should now be able to:

1 Give an overview of the W13A Software Release

1.1 Describe the challenges facing Mobile Operators in 2013

1.2 List the highlights of the W13A Software Release

1.3 Describe the Basic Features included in the W13A Software

Release

Figure 1-21: Summary of Chapter 1

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sw release 13 ericsson umts system improvements

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