HSDPA & EUL - AGH University of Science and Technology · •HSDPA–High Speed Downlink Packet...

HSDPA & EULHSDPA & EUL

Marcin Mikuszewski

www.mobile-telecom-networks.pl www.mobile-telecom-networks.com

ContentContent

• Short history notice• HSDPA – High Speed Downlink Packet Access• EUL – Enhanced Uplink• HSPA Evolution

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

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]

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

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]

Power and Rate ControlPower and Rate Control

Rate Control is more efficient than power control !!!

Power ControlPower Control

Rate ControlRate Control

Power and Rate Control [1]Power and Rate Control [1]

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

# 1# 1 # 1# 1 # 1# 1

HSDPA HSDPA –– Channel Dependent Scheduling [2]Channel Dependent Scheduling [2]

Effective channel variations seenby the base station

ChannelChannel TypeType SchedulingScheduling

User #1 User #2

TimeRound Robin

uality

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]

Higher Order ModulationHigher Order Modulation

QPSKQPSK2 bits/symbol2 bits/symbol

1616--QAMQAM4 bits/symbol4 bits/symbol

HSDPA HSDPA –– Higher Order Modulation [1]Higher Order Modulation [1]

Hybrid Automatic Repeat reHybrid Automatic Repeat reQQuestuest

Simplified Hybrid ARQ. [2]Simplified Hybrid ARQ. [2]

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

HSDPA HSDPA -- ArchitectureArchitecture

HS-DSCH

MAC-hsFunctionality:•Hybrid ARQ•Scheduling•Rate Adaptation

(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

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

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

Terminal Categories [2]Terminal Categories [2]

QPSK11.85Category 12

QPSK20.95Category 11

Both114.415Category 10

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

EUL EUL –– Network ArchitectureNetwork Architecture

MAC-e functionality• Hybrid ARQ

E-DCHE-DCHHS-DSCH

MAC-esfunctionality• Reordering

MAC-e functionality• Hybrid ARQ•Scheduling

RNCRNC

NodeBNodeB

RNCRNC

NodeBNodeB

IurIur

IubIub IubIub

IuIu IuIu

EUL EUL –– Network architecture [1]Network architecture [1]

EUL SchedulingEUL Scheduling

Hybrid ARQHybrid ARQ

Simplified Hybrid ARQ. [2]Simplified Hybrid ARQ. [2]

Hybrid ARQ with Soft HandoverHybrid ARQ with Soft Handover

P2,1 P3,1

P 1,1 P2,1

Simplified Hybrid ARQSimplified Hybrid ARQ for soft for soft handoverhandover (EUL)(EUL)

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

EUL EUL –– Channels [1]Channels [1]

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]

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 Mbps1.46 MbpsBoth2 x SF4Category 2

Layer 1 peakrate 2 ms TTI

Layer 1 peakrate 10 ms TTI

TTI 2 or 10 msCodes x spreading

UECategory

HSPA EvolutionHSPA Evolution

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

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

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

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

64 QAM6 bits/symbol

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

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

• Enhanced Layer 2

HSPA Evolution HSPA Evolution –– Enhanced Layer 2 [4]Enhanced Layer 2 [4]

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

70 Mbit/s in UL using Multi Carrier (10MHz), MIMO 2x2 and 64 QAM

23 Mbit/s in UL using Multi Carrier (10MHz) and 16 QAM

Carrier aggregationCarrier aggregation Multi Carrier [5]Multi Carrier [5]

HSDPA HSDPA MultipointMultipoint TransmissionTransmission

HSDPA Transmission [5]HSDPA Transmission [5]

HSDPA Multipoint HSDPA Multipoint Transmission [5]Transmission [5]

Self Optimizing Networks (SON)Self Optimizing Networks (SON)

Automatic Neighbor Cell RelationsAutomatic Neighbor Cell Relations

More enhancementsMore enhancements

• Continuous Packet Connectivity• Enhanced CELL_FACH• EUL for CELL_FACH

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

Thank You !!!Thank You !!!

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