HSDPA & EULHSDPA & EUL
Marcin Mikuszewski
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ContentContent
• Short history notice• HSDPA – High Speed Downlink Packet Access• EUL – Enhanced Uplink• HSPA Evolution
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ShortShort historyhistory noticenotice
• Release 99 (December 99)– CS and PS– R99 Radio Bearers– MMS
• Release 4 (March 2001)– Enhancements– TD-SCDMA
• Release 5 (March 2002)– HSDPA– IMS– AMR-WB
• Release 6 (March 2005)– EUL– MBMS– WLAN-UMTS interworking
• Release 7 (September 2007)– HSPA Evolution;
• DL 64 QAM• 16 QAM UL• CPC
• Release 8…– LTE– SAE– DC HSDPA
High High SpeedSpeed DowlinkDowlinkPacketPacket AccessAccess
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HSDPA (not HSDPA (not onlyonly) ) keykey conceptconcept
• Quality of radio channel varies• Pattern for traffic varies
Exploit and adapt to channel and traffic variations!
Radio Channel and Traffic variations [2]Radio Channel and Traffic variations [2]
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Dedicated Dedicated vsvs SharedShared
Dedicated channel for each user ?
Shared channel for all users ?
For packet-data applications it is better to use SHARED channel!
Dedicated ChannelsDedicated Channels Shared ChannelShared Channel
HSHS--DSCH DSCH –– High Speed Downlink High Speed Downlink Shared ChannelShared Channel
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Shared Channel and Multi Code TransmissionShared Channel and Multi Code Transmission
ChannelizationChannelizationCodesCodes
TimeTime
User 1 User 2
TTI=2msTTI=2ms
HSDPA HSDPA –– Code multiplexing [2]Code multiplexing [2]
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Power and Rate ControlPower and Rate Control
Rate Control is more efficient than power control !!!
TxTx
po
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po
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Ch
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Ch
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Qu
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uali
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Data
ra
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ata
ra
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TxTx
po
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po
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Data
ra
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ata
ra
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Ch
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Qu
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Power ControlPower Control
Rate ControlRate Control
Power and Rate Control [1]Power and Rate Control [1]
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Channel Dependent SchedulingChannel Dependent Scheduling
TimeTime
User 1User 1
User 2User 2
High data ratesHigh data rates
Low data ratesLow data rates
# 2# 2 # 2# 2 # 2# 2
Scheduled userScheduled user
# 1# 1
# 2# 2C
ha
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qu
ali
tyC
ha
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qu
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# 1# 1 # 1# 1 # 1# 1
HSDPA HSDPA –– Channel Dependent Scheduling [2]Channel Dependent Scheduling [2]
Effective channel variations seenby the base station
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ChannelChannel TypeType SchedulingScheduling
User #1 User #2
TimeRound Robin
Ch
ann
el Q
uality
Ch
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Qu
alit
y
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Link AdaptationLink Adaptation
High data ratesHigh data rates
Low data ratesLow data rates
16QAM16QAM
QPSKQPSK
HSDPA HSDPA –– Fast Link Adaptation [2]Fast Link Adaptation [2]
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Higher Order ModulationHigher Order Modulation
QPSKQPSK2 bits/symbol2 bits/symbol
II
1616--QAMQAM4 bits/symbol4 bits/symbol
II
HSDPA HSDPA –– Higher Order Modulation [1]Higher Order Modulation [1]
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Hybrid Automatic Repeat reHybrid Automatic Repeat reQQuestuest
Simplified Hybrid ARQ. [2]Simplified Hybrid ARQ. [2]
NACK
ACK
ACK
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WCDMA network architectureWCDMA network architecture
Core NetworkCore Network
NonNon--serving cellserving cellServing cellServing cell
RNCRNC
Dedicated ChannelsDedicated Channels
WCDMA WCDMA –– Network Architecture [1]Network Architecture [1]
IurIur
IubIub IubIub
IuIu IuIu
RNCRNC
NodeBNodeB NodeBNodeB
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HSDPA HSDPA -- ArchitectureArchitecture
HS-DSCH
MAC-hsFunctionality:•Hybrid ARQ•Scheduling•Rate Adaptation
Core NetworkCore Network
NonNon--serving cellserving cellServing cellServing cell
(F(F--)DPCH in DL)DPCH in DLDCH in ULDCH in UL
HSDPA HSDPA –– Network Architecture [1]Network Architecture [1]
IurIur
IubIub IubIub
IuIu IuIu
RNCRNC
NodeBNodeB
RNCRNC
NodeBNodeB
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HSDPA HSDPA -- ChannelsChannels
•• New channelsNew channels–– HSHS--SCCH SCCH –– High Speed Shared Control ChannelHigh Speed Shared Control Channel–– HSHS--DPCCH DPCCH –– High Speed Dedicated Physical Common Control ChannelHigh Speed Dedicated Physical Common Control Channel–– HSHS--DSCH DSCH –– High Speed Downlink Shared ChannelHigh Speed Downlink Shared Channel
HS-SCCHHS-DSCH
HS-DPCCHDCH (DPCCH/DPDCH)
HSDPA HSDPA –– ChannelsChannels
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HSDPA HSDPA -- ChannelsChannels
Shared, per cellShared, per cell Dedicated, Dedicated, oeroer UeUe
HSHS--DSCHDSCHDownlinkDownlinkuser datauser data
HSHS--SCCHSCCHControlControl
signaling forsignaling forHSHS--DSCHDSCH
(F(F--)DPCH)DPCHPowerPowercontrolcontrol
commandscommands
DPDCHDPDCHUplinkUplink
user datauser data
DPCCHDPCCHControlControl
signaling forsignaling forDPDCHDPDCH
HSHS--DPCCHDPCCHControlControlsignalingsignalingrelated torelated toHSHS--DSCHDSCH
transmissiontransmission
HSDPA HSDPA –– ChannelsChannels
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Terminal Categories [2]Terminal Categories [2]
QPSK11.85Category 12
QPSK20.95Category 11
Both114.415Category 10
Both110.215Category 9
Both17.210Category 8
Both17.210Category 7
Both13.65Category 6
Both13.65Category 5
Both21.85Category 4
Both21.85Category 3
Both31.25Category 2
Both31.25Category 1
QPSK16 QAM
Minimum inter TTI interval
Layer 1 peak rate [Mbps]
Maximum number of HS-DSCH codes
UECategory
Enhanced UplinkEnhanced Uplink
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EUL EUL –– Network ArchitectureNetwork Architecture
MAC-e functionality• Hybrid ARQ
E-DCHE-DCHHS-DSCH
MAC-esfunctionality• Reordering
MAC-e functionality• Hybrid ARQ•Scheduling
Core NetworkCore Network
NonNon--serving cellserving cellServing cellServing cell
RNCRNC
NodeBNodeB
RNCRNC
NodeBNodeB
IurIur
IubIub IubIub
IuIu IuIu
EUL EUL –– Network architecture [1]Network architecture [1]
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EUL SchedulingEUL Scheduling
Requ
est
Grant
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Hybrid ARQHybrid ARQ
NACK
ACK
ACK
Simplified Hybrid ARQ. [2]Simplified Hybrid ARQ. [2]
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Hybrid ARQ with Soft HandoverHybrid ARQ with Soft Handover
P 1,1
P 1,1
P2,1 P3,1
P 1,1 P2,1
P2,1
Simplified Hybrid ARQSimplified Hybrid ARQ for soft for soft handoverhandover (EUL)(EUL)
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EUL ChannelsEUL Channels
•• EUL uplink channelsEUL uplink channels–– EE--DCH DCH –– Enhanced Uplink Dedicated Channel (Transport)Enhanced Uplink Dedicated Channel (Transport)–– EE--DPCCH DPCCH –– EE--DCH Dedicated Physical Control Channel DCH Dedicated Physical Control Channel –– EE--DPDCH DPDCH –– EE--DCH Dedicated Data Control ChannelDCH Dedicated Data Control Channel
•• EUL downlink channelsEUL downlink channels–– EE--HICH HICH –– EE--DCH Hybrid ARQ Indicator ChannelDCH Hybrid ARQ Indicator Channel–– EE--AGCH AGCH –– EE--DCH Absolute Grant ChannelDCH Absolute Grant Channel–– EE--RGCH RGCH –– EE--DCH Relative Grant ChannelDCH Relative Grant Channel
E-DPCCHE-DPDCH
E-HICHE-AGCH
E-RGCH
E-DCH
EUL EUL –– Channels [1]Channels [1]
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EUL ChannelsEUL Channels
Shared, per cellShared, per cell Dedicated, per Dedicated, per UeUe
HSHS--DSCHDSCHDownlinkDownlinkuser datauser data
HSHS--SCCHSCCHControlControl
signaling forsignaling forHSHS--DSCHDSCH
(F(F--)DPCH)DPCHPowerPowercontrolcontrol
commandscommands
HSHS--DPCCHDPCCHControlControlsignalingsignaling
related torelated toHSHS--DSCHDSCH
transmissiontransmission
EE--AGCHAGCHAbsoluteAbsolutegrantsgrants
EE--RGCHRGCHRelativeRelativegrantsgrants
EE--HICHHICHHybrid ARQHybrid ARQACK/NAKACK/NAK
EE--DPDCHDPDCHUplinkUplink
user datauser data
EE--DPCCHDPCCHControlControl
Signaling forSignaling for(E(E--)DPDCH)DPDCH
DPCCHDPCCHControlControl
SignalingSignaling
EUL EUL –– Channels [1]Channels [1]
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EUL Terminal CategoriesEUL Terminal Categories
5.76 Mbps2.0 MbpsBoth2 x SF2 +2 x SF4
Category 6
-2.0 Mbps10 ms2 x SF2Category 5
2.92 Mbps2.0 MbpsBoth2 x SF2Category 4
-1.46 Mbps10 ms2 x SF4Category 3
1.46 Mbps1.46 MbpsBoth2 x SF4Category 2
-0.73 Mbps10 ms1 x SF4Category 1
Layer 1 peakrate 2 ms TTI
Layer 1 peakrate 10 ms TTI
TTI 2 or 10 msCodes x spreading
UECategory
HSPA EvolutionHSPA Evolution
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HSPA EvolutionHSPA Evolution
I
Q
I
Q
QPSKQPSK2 bits/symbol2 bits/symbol
16 QAM16 QAM4 bits/symbol4 bits/symbol
64 QAM64 QAM6 bits/symbol6 bits/symbol
UPLINKUPLINK DOWNLINKDOWNLINK
HSPA Evolution HSPA Evolution –– Higher Order Modulation [4]Higher Order Modulation [4]
Higher Order ModulationHigher Order Modulation
21 Mbit/s in DL using 64 QAM and 11.52 Mbit/s in UL using 16 QAM
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HSPA EvolutionHSPA Evolution
HSPA Evolution HSPA Evolution –– MIMO Simplified PictureMIMO Simplified Picture
28 Mbit/s in DL using 2x2 MIMO
HSDPA: MIMO HSDPA: MIMO –– Multiple Input Multiple OutputMultiple Input Multiple Output
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HSPA EvolutionHSPA Evolution
I
Q
64 QAM6 bits/symbol
42 Mbit/s in DL using 2x2 MIMO and 64QAM
HSDPA: MIMO + Higher Order ModulationHSDPA: MIMO + Higher Order Modulation
HSPA Evolution HSPA Evolution –– MIMO and 64 QAM combinationMIMO and 64 QAM combination
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HSPA EvolutionHSPA Evolution
I
Q
64 QAM6 bits/symbol
42 Mbit/s in DL using Dual Carrier and 64QAM
HSDPA: Dual Carrier and Higher Order ModulationHSDPA: Dual Carrier and Higher Order Modulation
HSPA Evolution HSPA Evolution –– MIMO and Dual Carrier combinationMIMO and Dual Carrier combination
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HSPA EvolutionHSPA Evolution
I
Q
64 QAM6 bits/symbol
UE
RBS
5 MHz10 MHz
Adjacent carriers
84 Mbit/s in DL using Dual Carrier, MIMO and 64QAM
Dual carrier, Higher Order Modulation and MIMODual carrier, Higher Order Modulation and MIMO
HSPA Evolution HSPA Evolution –– Dual Carrier, MIMO and 64 QAM combinationDual Carrier, MIMO and 64 QAM combination
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HSPA EvolutionHSPA Evolution
I
Q
64 QAM6 bits/symbol
168 Mbit/s in DL using Multi Carrier, MIMO and 64QAM
HSDPA: Multi carrier, Higher Order Modulation and MIMOHSDPA: Multi carrier, Higher Order Modulation and MIMO
HSPA Evolution HSPA Evolution –– Multi Carrier, MIMO and 64 QAM combinationMulti Carrier, MIMO and 64 QAM combination
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HSPA EvolutionHSPA Evolution
• Enhanced Layer 2
HSPA Evolution HSPA Evolution –– Enhanced Layer 2 [4]Enhanced Layer 2 [4]
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HSPA EvolutionHSPA Evolution
336 Mbit/s in DL using Multi Carrier (40MHz), MIMO 2x2 and 64QAM
672 Mbit/s in DL using Multi Carrier (40MHz), MIMO 4x4 and 64QAM
MIMO 4x4MIMO 4x4 Multiuser MIMO [5]Multiuser MIMO [5]
Carrier AggregationCarrier Aggregation
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HSPA EvolutionHSPA Evolution
70 Mbit/s in UL using Multi Carrier (10MHz), MIMO 2x2 and 64 QAM
5 MHz
UE
RBS
10MHz
23 Mbit/s in UL using Multi Carrier (10MHz) and 16 QAM
Carrier aggregationCarrier aggregation Multi Carrier [5]Multi Carrier [5]
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HSDPA HSDPA MultipointMultipoint TransmissionTransmission
HSDPA Transmission [5]HSDPA Transmission [5]
HSDPA Multipoint HSDPA Multipoint Transmission [5]Transmission [5]
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Self Optimizing Networks (SON)Self Optimizing Networks (SON)
RBS
UE
RBS
Automatic Neighbor Cell RelationsAutomatic Neighbor Cell Relations
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More enhancementsMore enhancements
• Continuous Packet Connectivity• Enhanced CELL_FACH• EUL for CELL_FACH
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References and Further ReadingReferences and Further Reading
References:[1] E. Dahlman, S. Parkvall, J. Sköld,P. Beming „3G Evolution : HSPA and LTE for
Mobile Broadband” 2nd Edition Academic Press 2008[2] Ericsson White Paper „Basic Concept of HSPA” February 2007[3] H. Holma, A. Toskala „WCDMA for UMTS HSPA Evolution and LTE 4th Ed” John
Wiley & Sons Ltd 2007[4] Andreas Mitschele-Thiel, Jens Mückenheim „Enhanced High-Speed Packet Access
HSPA+” WS 2008[5] Nokia Siemens Networks White Paper “Long Term HSPA Evolution Mobile
broadband evolution beyond 3GPP Release 10” December 2010
Further reading:- Qualcomm Incorporated „HSPA+ for Enhanced Mobile Broadband” February 2009- Rhode & Schwarz „HSPA+ Technology Introduction Application Note” May 2009- Nomor Research „White Paper – Dual Cell HSDPA and its Future Evolution” January
2009
Thank You !!!Thank You !!!
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