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WCDMA RAN W13A

Key Areas Presentation

Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 |

WCDMA RAN W13AServices

Mobility

MBB

Controller Evolution

RAN O&M

RBS Capacity and Configs

˃UL Fast Congestion Control (S.M.) (Het.)˃CE extension for EUL (S.M.)˃Interference Suppression (S.M.) (Het.)˃Interference Suppression for EUL 10 ms (S.M.) (Het.)˃Number of HSDPA users (S.M.)˃Number of HSDPA codes (S.M.)˃Number of EUL users (S.M.)˃Increased HSDPA code capacity on DUW˃Low rate DCH User Admission (S.I.)

˃Cross Sector Antenna Sharing Redundancy (CSASR) for WCDMA˃Battery test (S.I.)˃Configurable Antenna System Voltage 12/17/30 VDC (S.I.)˃Power Blossoming (S.I.)˃WCDMA configurations for DUW41/31/11(S.I.)˃Support for AISG RET antenna˃Support for AISG and CWA TMAs˃Cascading of AISG RET antenna˃RBS 6000 MMi Ph2 (S.I.)˃Joint support for 4wRX and DC-HSDPA in a Node (S.I.)˃Universal Radio Building Block handling improvement (S.I.)

Transport ˃1588v2 Frequency Synchronization

˃Service Differentiated RRC admission (S.M.) ˃ Multi RAB observability ˃ UE Real-time Trace˃ O&M Capacity Improvement (S.I.)

˃ Iur retainability (S.I.)˃ Release with redirect to LTE (Step2)

S.I. - Included in System ImprovementsS.M. – Smartphone featureHet. – Heterogeneous NW feature


content

› Service differentiated RRC admission - FAJ 121 2712

› Release With Redirect to LTE - FAJ 121 2174

› UL Fast Congestion Control - FAJ 121 2444

› CE Extension for EUL - FAJ 121 2598

› Interference Suppression– Interference Suppression - FAJ 121 1714

– Interference Suppression for EUL 10 ms - FAJ 121 2671

› Number of HSDPA users - FAJ 121 2721

› Number of HSDPA codes - FAJ 121 2722

› Number of EUL users - FAJ 121 2723

› Increased HSDPA Code Capacity on DUW - FAJ 121 2870

› 1588v2 Frequency Synchronization - FAJ 121 2561


CONTENT (2)

› Multi RAB Observability - FAJ 121 2710

› UE Real-time Trace - FAJ 121 2527

› Cross Sector Antenna Sharing Redundancy (CSASR) for WCDMA –FAJ 121 2576

› NAME CHANGE› Features Supported by DUW in RBS 3000/6000› System Improvements in WCDMA RAN W13 Release - FAJ 121 2636

› Multi RAB Observability - FAJ 121 2710

› UE Real-time Trace - FAJ 121 2527

› Cross Sector Antenna Sharing Redundancy (CSASR) for WCDMA –FAJ 121 2576

› NAME CHANGE› Features Supported by DUW in RBS 3000/6000› System Improvements in WCDMA RAN W13 Release - FAJ 121 2636


Service differentiated RRC admissionFAj 121 2712

Background› Very high intensities of non

voice RRC connection requests seen in some cells

› Very high ratios seen between non voice/voice

› When all RRC requests have the same priority, voice accessibility could be affected

RRC request per 15 minutes in a high loaded cell

RRC connection requests total

RRC connection requests voiceRRC connection requests packet

Link to source

http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:056834Uen&objectId=09004cff85dde187&action=approved&format=ppt8


Service differentiated RRC admissionFAj 121 2712

Description› Ability to select which (high prio)

RRC requests that should trigger soft congestion

Allows down-switching of low prio bearers, giving improved accessibility for high prio bearers

Low prio accesses are rejected with wait timer

Access type identified by cause value in RRC request

Benefits› Gives higher priority, and thereby

accessibility to selected relative other RRC connection requests

Term Int Call

RRC Establishment cause Shall trigger soft cong

Orig Conv Call √

Term Con Call √

Emerg call √

Registration

IRAT Cell Resel

Term Backg Call

Orig Int Call

Delay Tolerant Access

Term Int Call

RRC Establishment cause Shall trigger soft cong

Orig Conv Call √

Term Con Call √

Emerg call √

Registration

IRAT Cell Resel

Term Backg Call

Orig Int Call

Delay Tolerant AccessOperator configurable table

Link to source



Release With Redirect to LTEFAJ 121 2174

Description› Two new triggers are introduced

– DCH to FACH– CS Fallback DCH to FACH

› Option is introduced for CSFB release not to release and redirect immediately if the PS connection is active

Benefit› Makes it possible to move active LTE

capable devices to LTE when in coverage › Improves end user experience for those

users– and for the remaining users in the WCDMA

cell› Improves the capacity in the combined

WCDMA and LTE networks

WCDMA

LTE

Link to source

IDLE

DCH

FACH

URA

http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:056835Uen&objectId=09004cff85dde186&action=current&format=ppt8



UL Fast Congestion ControlFAJ 121 2444

Description› Improved control of RoT through

power control improvements› Requires DUW

Benefits› Reduced impact on speech from

EUL– Higher speech retainability

› Better end user experience – Allows higher bitrates due to

reduced margins for RoT

RoT

Better control of RoTBetter end user experience

0 5 10 15 200

0.2

0.4

0.6

0.8

1

RoT [dB]C

DF

BaselineUL FCC ON

1

2

Link to source

http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:049486Uen&objectId=09004cff85ca9be5&action=approved&format=ppt8


High Capacity

UL Fast Congestion controlexample

RoT

t

Final SIR target

FCC active

Power is reduced and SIR target is not increased when FCC is active→ Higher BLER

High load High FCCActivity

High BLERLink to source



CE Extension for EULfaj 121 2598

Description› Channel Elements available for EUL

Scheduling increased by 50%› Requires DUW

Benefits› Increased bitrate for scheduled users› Significant boost in uplink baseband

capacity

50% more CE available for scheduling

0

100

200

300

400

500

600

700

0 50 100 150 200 250Number of EUL 2ms users

Tota

l CE

With feature

Baseline

Link to source

http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:049478Uen&objectId=09004cff85ca9ba1&action=approved&format=ppt8


A

B

Interference Suppression1 new features and 1 Enhancement in W13A

User specific, ideal, uplink beamforming


Interference SuppressionFAJ 121 1714 Enhancement

Description› Advanced IS receiver is allocated to

control channels (HS-DPCCH andE-DPCCH)

› Improved performance of E-DPDCH› Requires DUW

Benefits› Improved bitrates and efficiency for

uplink and downlink› Higher capacity and better end user

experience

Improved detection of HS-DPCCH and E-DPCCH

Link to source



Interference suppression improved in W13A

IS W13A + TD,(estimated)

Increased robustness and better end user experience

Link to sourceLink to source

Increased robustness and better end user experience




Interference Suppression for EUL 10 msFAJ 121 2671

Description› Advanced IS receiver allocated to EUL 10ms

› Users not allocated IS will use RAKE receiver› IS prioritized for users with highest bitrate

› Requires DUW

Benefits› Increased cell throughput› Increased bitrates for EUL 10ms connections

Link to source



Number of HSDPA users FAJ 121 2721

Description› This feature defines the licensed

level of HSDPA users per cell› The feature can be used in steps of 4

with a maximum of 128 users

Benefits› Increases upper limit of HSDPA

users in a cell to 128 – Decreased risk of forcing HSDPA

capable terminals to use R99.– Enhanced user experience and

increased cell throughput› Simpler to add licensed capacity



http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:056946Uen&objectId=09004cff85de0db5&action=approved&format=ppt8


Number of HSDPA codesFAJ 121 2722


level of HSDPA Codes per cell› Introduction package with 5

codes included › Additional licenses in steps of 5

codes can be purchased up to maximum 15 Codes per cell

Benefits› Simpler to add licensed capacity





Number of eul usersFAJ 121 2723


level of EUL users per cell. › The feature can be used in steps

of 4 with a maximum of 96 EUL users.

Benefit› Simpler to add licensed capacity





Increased HSDPA Code Capacity on DUWFAJ 121 2870

Description› HSDPA code capacity is increased from 30 to

60 HSDPA codes per HS-processing unit› HSDPA is in general code limited when a HS-

processing unit handles more than two cell-carriers

Benefit› Increased user data rate and cell throughput

in RBS where HSDPA codes are shared amongst more than two cell carriers

– DUW10/11 3x1 10->15 HS codes per cc – DUW20 3x2 10->15 HS codes per cc – DUW20 3x2 DC-HSDPA 7.5->15 HS codes– Increased DL CE capability since fewer HS-processing

needs to be allocated Example (simulations) 3x2 configuration without MC-HSDPA on DUW20

100% more HSDPA codes

0

1

2

3

4

0,2 0,5 1 1,5 2 2,5 3

Cell Throughput [Mbps]Av

erag

e us

er d

ata

rate

[M

bps]

15 HS codes per cc with feature

10 HS codes per cc

DUW20 example

Link to source



1588v2 Frequency SynchronizationFAJ 121 2561

Packet NetworkSGW

BSC

RNC

3G 4G2GRBS

3G 4G2GRBS

Integrated NTP serverStandalone NTP server/ PTP grandmaster

NTP/PTP packetsSync client

Sync client

Description› Follows IEEE 1588v2 (PTP)› Client - Server based solution› Client integrated in NodeB (DUW)› Standalone PTP grandmaster required (no support in RNC)› No synchronization support required in the transport network

but delay variation requirements must be met.

Benefits› One standard solution for providing

frequency sync over an IP network supported also by other vendors





Multi RAB ObservabilityFAJ 121 2710

Description› Counters added to support

– Accessibility of MultiRAB› Cell update› Iu signaling› RAB establishment

– Retainability - both cell level and UeRc level

Benefit› MultiRAB Accessibility is possible to calculate

on cell level › Accessibility user experience is reflected in a

better way› MultiRAB drop rate is possible to calculate

with counters



http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:056958Uen&objectId=09004cff85ddfc95&action=approved&format=ppt8


Description› Streaming of UETR events for up to 14 IMSIs› Stream to a operator defined receiving

system, e.g. OSS, other

Benefit› Instant access to UE data for traced IMSIs

including UL/DL signaling as it happens› Less need of and increased efficiency in drive

testing› VIP traces to provide exceptional service

access to prioritized users› Traces on end-user complaints will be

possible

Instant access to VIP/IMSI traces in real-time

UE Real-time Trace FAJ 121 2527



http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:057510Uen&objectId=09004cff85df678d&action=approved&format=ppt8


Cross Sector Antenna Sharing Redundancy (CSASR) for WCDMAFAJ 121 2576

Description› Support for cross-connect of the

antenna feeders between RRUs and antennas

– One antenna served by two RRUs and one RRU serves two antennas

Benefits› Prevents a single point of failure

– Provides redundancy in configurations with dual TX RRUs.

› Continued operation even with faulty RRU or faulty antenna


S1 S2 S3

RRU1

RRU2

RRU3

S1 S2 S3

RRU1

RRU2

RRU3

No CSASR

With CSASR




NAME CHANGE

Description› The following three feature has changed their names thus same name is

used in all three technologies (GSM, WCDMA and LTE).

Support for 3GPP compatible RET antennas

Support for AISG RET antenna

Support for 3GPP compatible TMAs

Support for AISG and CWA TMAs

Support for Cascading of AISG 2.0 compatible RET

antennas

Cascading of AISG RET antenna

FAJ 121 1173

FAJ 121 1242

Old Name

FAJ 121 1462

New Name



http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:056951Uen&objectId=09004cff85ddfc96&action=approved&format=ppt8


W11B FAJ 121 1483 64QAM and MIMO CombinationW11B FAJ 121 1492 HSDPA Multi-Carrier with MIMOW11B FAJ 121 1553 Mixed Mode in Multi Standard RBS (WCDMA)*W11B FAJ 121 1554 Absolute time synchW12A FAJ 1211503 EUL TD Scheduling W12A FAJ 1211677 96 Enhanced Uplink users per cell W12A FAJ 1211714 Interference Suppression W12A FAJ1211673 Channel Element capacity for HSDPA SmartphonesW12A FAJ1211676 64 Enhanced Uplink users per cell W12B FAJ 121 1351 4-way receiver diversity*W12B FAJ 121 1516 Improved Layer 2W12B FAJ 121 1652 Enhanced Uplink for FACHW12B FAJ 121 1679 R1, Ψ-Coverage*W12B FAJ 121 1883 Channel Element capacity for EUL SmartphonesW12B FAJ 121 2095 TWAMP ResponderW12B FAJ 121 2117 Egress IP Traffic ShapingW12B FAJ 121 2119 RBS MP Load SharingW13A FAJ 121 2636 System Improvements in WCDMA RAN W13 ReleaseW13A FAJ 121 1714 Interference SuppressionW13A FAJ 121 2870 Increased HSDPA code capacity on DUWW13A FAJ 121 2671 Interference Suppression for EUL 10 msW13A FAJ 121 2444 Uplink fast congestion controlW13A FAJ 121 2598 CE extension for EULW13A FAJ 121 2576 Cross-Sector Antenna Sharing RedundancyW13A FAJ 121 2561 1588v2 Frequency SynchronizationW13A FAJ 121 2723 Number of EUL usersW13A FAJ 121 2721 Number of HSDPA users

Features Supported by DUW in RBS 3000/6000

* For RBS 6000 only

In GA

GA end 2012

W11B

W12A

W12B

W13A


System Improvements in WCDMA RAN W13 Release

FAJ 121 2636 BASIC Link to sourceLink to source


http://anon.ericsson.se/eridoc/component/eriurl?docno=EAB-12:057001Uen&objectId=09004cff85de0fe7&action=approved&format=ppt8


Improvements W13

› Config System antenna Voltage 12/17/30› Power Blossoming› Battery Test› WCDMA configs DUW41/31/11› Improved IUR retainability› Low Rate DCH User Admission› Joint support for 4wRX and DC-HSDPA in a Node› O&M Capacity Improvement› MMI Improvement› Universal Radio Building Block handling improvement


Config System antenna Voltage 12/17/30

Description› RBS can be configured to provide

different antenna system voltages › 17V or 30V and for R- RUS 02/12 also

for 12 VDC.

Benefit› RBS can support different antenna

system voltages


Power blossoming

Description› More moderate ramp than

earlier solution– Common channels ramp up with

a ramp parameter. – CPICH ramps up first and then

other common channels.

Benefit› Reduce disturbances in

surrounding cells – Less dropped calls.

Pout[dBc/carrier]

-18

<5 sec for DPD calibration

Final power for CPICH + all Common Ch

Added dedicated Channels

time

Final power for CPICH

5 dB/sec ramping

10-60 sec RampupCommon channels

Possible to take traffic during rampup


Battery test

Description› Continuous monitoring of battery

condition– Remote supervision of battery

degradation › Detects battery backup problems

– faulty battery– insufficient PSU capacity– unreliable mains power supply

› Supervises recharging

Benefits› Lower maintenance cost of battery

maintenance due to better planning› Network can be maintained longer

OSS


wcdma duw configurations› DUW 11

– 3x Gigabit ethernet ports– IP & ATM support– 128 CE DL / 128 CE UL– 252 Mbps DL– 24 Mbps UL– Width 31mm

› DUW 31– 3x Gigabit ethernet ports– IP support only– 768 CE DL / 512 CE UL– 252 Mbps DL– 92 Mbps UL– Width 62mm

› DUW 41– 3x Gigabit ethernet ports– IP & ATM support– 768 CE DL / 768 CE UL– 336 Mbps DL– 138 Mbps UL– Width 62mm

DUW 11/31 DUW 41


Improved Iur retainability

Description› The connection across Iur will not be turn

down as long as there are other available radio link sets under Serving RNC, when

– Synchronization failure in radio link set 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

Benefit› Connection will stay up and retainability

will be improved for the scenarios listed above.

Resilience of Iur connections

D-RNS S-RNS


low rate dch user admission

Benefits› Avoids that DCH users are

taking too much resources from HSDPA or EUL

Description› Limits the number of 16 kbps

user in UL and/or DL

Resources

HSDPA

#users

EUL

R99

R99

Resources

#users


low rate dch user admission + DCH/EUL load balancing, example

Feature onBaseline

6dB

› DCH load balancing forces R99 to 16kbps at high load› Low rate DCH user admission limits the number of 16kbps users› Result

– Full control of the total number of PS users– Control of RoT

Improved speech retainability


Joint support for 4wRx and MC-HSDPA in a NodeImprovement › Introduce the possibility to select

whether 4wRx diversity should be used on a per cell-carrier level in sector

› Allow that the radio building block (RBB) used for 4wRx diversity is supported for more than 2 carriers

Benefit› Allow joint support for 4wRx

diversity and MC-HSDPA in a Node (on different carriers)

› Feature applicable for DUW20, DUW30, DUW31, DUW41

DUWnr1MC-HSDPA2wRx div

DUWnr2SC-HSDPA4wRxDiv

f1

f2

f3

DUW1 nr1 DUW2 nr2


Joint support for 4wRx and MC-HSDPAExamples of Supported configurations

sectors/site carriers/DUWs UL Rx Div MC-HSDPA

1

1 1x4wRxDiv N/A

2 2x4wRxDiv Supported


2

1 1x4wRxDiv N/A

21x4wRxDiv+1x2wRxDiv

Supported


31 4wRxDiv N/A

2 2wRxDiv Supported

› Cell-carriers in one sector can be configured with different number of Tx and Rx antennas. E.g. for a 3x3 site

– One frequency layer configured with 4-way Rx diversity (on DUWnr1) – Two frequency layers configured with 2-way Rx diversity and MC-HSDPA (DUWnr2)


O&M Capacity Improvement

Description› The previous Java Virtual Machine SW

component is replaced with a more powerful SW component

Benefit› This will off-load the O&M MP and generally

improve O&M capacity› External O&M interfaces will remain fully

backwards compatible› During O&M load peaks, the processor load

on the O&M MP will decrease significantly compared with previous JVM

This feature is supported on DUW based RBSs and all RNC variants.


MMI phase2-1

Description› Maintenance Button on radio HW to indicate

in OSS that technician is present at site– Supported on RU in W13A– Supported on DUW in W13B

› Status LED indicating if site is OK or faulty– Technician knows if it is OK to leave the site

Benefit› Standard independent MMI and behavior› Clear indication about technician presence› Unified for all radio HW

On Fault

Off No Fault exists in this unit

Press HW Activity

Long Time Press

HW reset

Press Maintenance or activity, with this HW unit is completed

Status LED

Maintenance Button

Simple, clear and generic HW MMI for service staff


Universal RBBDescription› Single-standard Radio Building Block

(RBB) (e.g. 12 1a) is used also for mixed-mode operation

› The attribute mixedModeRadio becomes settable and indicates whether the sector is single standard or mixed mode.

Benefit› Simplify operator handling› No need to recreate sectors with different

RBB when changing to a mixed mode configuration

› Possible to pre-cable for mixed mode but initially run as single standard

Simplified and more flexible configuration handling

STD1

STD2

STD2

STD1

RBB 12 2a

RBB 12 1a

RBB 12 1a

Example: Baseline (left) and Universal RBB (right)

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