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Transcript of Wcdma ran w13_a_key_areas_presentation_wc
WCDMA RAN W13A
Key Areas Presentation
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 2
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 3
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 4
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 5
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 6
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 7
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 8
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 9
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 10
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 11
A
B
Interference Suppression1 new features and 1 Enhancement in W13A
User specific, ideal, uplink beamforming
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 12
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 13
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 14
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 15
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 16
Number of HSDPA codesFAJ 121 2722
Description› This feature defines the licensed
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 17
Number of eul usersFAJ 121 2723
Description› This feature defines the licensed
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 18
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 19
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 20
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 21
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 22
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
Link to sourceLink to source
S1 S2 S3
RRU1
RRU2
RRU3
S1 S2 S3
RRU1
RRU2
RRU3
No CSASR
With CSASR
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 23
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
Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 24
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 25
System Improvements in WCDMA RAN W13 Release
FAJ 121 2636 BASIC Link to sourceLink to source
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 26
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 27
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 28
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 29
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 30
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 31
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 32
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 33
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 34
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 35
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
3 3x4wRxDiv Supported
2
1 1x4wRxDiv N/A
21x4wRxDiv+1x2wRxDiv
Supported
3 3x2wRxDiv 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)
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 36
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.
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 37
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
Ericsson Internal | 221 09-FGC 101 1820 Uen, Rev C | 2012-12-12 | Page 38
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)