hspa+/lte – from standard to market -...

HSPA+/LTE – from Standard toMarketSimon Hsieh / Frank Wu

Agenda

• Evolution of 3GPP Technologies

• HSPA Evolution (HSPA+)

• Success of 3GPP Technologies

• LTE (Long Term Evolution)

• LTE deployment status

• LTE-Advanced

Evolution of 3GPP Technologies

4G

R99

WCDMA

1999 2002 2005 2007 2008 2009

Rel-4 Rel-5

HSDPA HSPA

Rel-6 Rel-7 Rel-8 Rel-9

2010

Rel-10

HSPA Evolution (HSPA+)

LTE LTE-Advanced

2011

Evolution of 3GPP Technologies

Stage 3 March 2011 (RAN: December 2010 except ASN.1)

Stage 2 September 2010

Stage 1 freeze March 2010Release 10

Stage 3 freeze December 2009

Stage 2 June 2009

Stage 1 freeze December 2008 Release 9

Stage 3 freeze December 2008

Stage 2 freeze June 2008

Stage 1 freeze March 2008 Release 8

Functional freeze dateRelease


• Required by operators to keeping enhancement to HSPA technology with a low cost

• Exploit the full potential of a CDMA approach before moving to an OFDM platform in 3GPP LTE

• Achieve performance close to LTE in 5 MHz of spectrum

• Reduced latency

• To 25 ms round-trip times between UE and BS, and

• To < 200 ms transition times from inactive to active


Lower latency for transition to CELL_DCH; More efficient common channels

Enhanced CELL_FACH – Release 7

Higher L2 throughput and less processing requirements

L2 optimization (Flexible RLC PDU size) –Release 7 (DL)/Release 8 (UL)

Lower UE power consumption and Higher voice capacity

CS over HSPA – Release 8

Higher peak data throughputDual Carrier (DL/UL) – Release 8

Higher peak data throughput and data capacityDL MIMO: 2x2 – Release 7

Higher peak data throughputHigh Order Modulation DL: 64 QAM, UL: 16QAM – Release 7

Lower UE power consumptionContinuous Packet Connectivity (CPC) –Release 7


11.542Release 8 HSPA+ Dual Carrier (DL), DL 64 QAM, UL 16 QAM

11.542Release 8 HSPA+ 2X2 MIMO DL 64 QAM, UL 16 QAM

2384Release 9 HSPA+ 2X2 MIMO, Dual Carrier(DL/UL), DL 64 QAM, UL 16 QAM

11.528Release 7 HSPA+ 2X2 MIMO, DL 16 QAM, UL 16 QAM

11.521Release 7 HSPA+ DL 64 QAM, UL 16 QAM

5.7614.4HSPA as defined in Release 6

Uplink Peak Data Rate (Mbps)

Downlink Peak

Data Rate (Mbps)

Technology


• HSPA is still being evolved in 3GPP Release 10

• Enhancement to DL data rate with four carriers (WI: 4C-HSDPA)

• 4C-HSDPA WI starts on December 2009

• 4C-DSDPA stage-3 specification work will be finalized on December 2010

Success of 3GPP Technologies

• 531 EDGE networks commercially launched in 196 countries

• 357 WCDMA networks commercially launched in 148 countries

• 353 commercial HSPA networks in 147 countries

• HSDPA networks supporting 3.6 Mbps or higher: 81.5%

• HSDPA networks supporting 7.2 Mbps or higher: 58%

• Commercial HSUPA networks: 118

Source: GSA (the Global mobile Suppliers Association), Mobile Broadband Status – August 2010

Success of 3GPP Technologies

• 116 HSPA+ network commitments

• 63 networks launched in 54 countries

• HSPA+ is now commercially launched on 18% of HSPA networks

• 42 Mbps will supported

• WCDMA subscribers (incl. HSPA) Q2, 2010: 530 million => 3GPP technologies are the most successful wireless technologies in the world!

Source: GSA (the Global mobile Suppliers Association), Mobile Broadband Status – August 2010

Success of 3GPP Technologies – HTC products

• First GPRS smart phone launched in 2002

• First EDGE smart phone launched in 2005

• First WCDMA (R99) smart phone launched in 2005

• First HSDPA (Rel-5) smart phone launched in 2006

• First HSUPA (Rel-6) smart phone launched in 2008

• First HSPA+ (Rel-7) smart phone launched in 2010

LTE (Long Term Evolution) - Standardization

• Work on LTE began in 2004• Requirements of LTE (TR25.913) are approved at 3GPP TSG RAN #28 meeting

in June, 2005.• Requirements:

• Reduce C-plane latency: idle to active < 100 ms• Peak data rate e.g. 100 Mbps (downlink) and 50 Mbps (uplink)• Increase data rate in cell edge• Scalable bandwidth to support multiple bandwidths• Spectrum efficiency (e.g. 2~4 times than Rel-6, i.e. HSPA)• Optimized for low mobility but also support high mobility• Operation in paired and unpaired spectrum (i.e. FDD and TDD)• Efficient support of the various types of services, especially from the

PS domain (e.g. Voice over IP, Presence)• Interworking with 3GPP system and non-3GPP system

LTE (Long Term Evolution) – Standardization

• An official work item started in 2006

• The first release of LTE specifications (Release 8) are released in March, 2008

• 2008 Dec or 2009 March versions are considered stable for implementation

• Positioning (LCS/LPP) and MBMS are added in LTE specifications in 3GPP release 9


3GPP TSG

GERANGSM EDGE Radio

Access Network

RANRadio Access

Network

SAServices & System

Aspects

CTCore Network &

Terminals

GERAN WG1Radio Aspects

GERAN WG2Protocol Aspects

GERAN WG3Terminal Testing

RAN WG1Radio Layer 1 spec

RAN WG2Radio Layer 2 spec &

Radio Layer 3 RR spec


GERAN WG2Protocol Aspects


SA WG1Services

SA WG2Architecture

SA WG3Security

SA WG4Codec

SA WG5Telecom

Management

CT WG3Interworking with external networks

CT WG4MAP/GTP/BCH/SS

CT WG6Smart Card

Application Aspects

CT WG1MM/CC/SM


• HTC have joined 3GPP LTE standardization work since May 2008

• Working groups joined by HTC:

• RAN WG1 & WG2

• CT WG1

• SA WG2


• Weakness of Taiwan company joining standardization activities:

• Meeting skills on argument and discussion

• Technical skills on leading technologies

• Not capable of predicting the direction

• Always be a follower

• No much R&D resource is put in standardization <= may be due to ODM

• Datang has more than 200 engineers in 3GPP standardization

• Huawei has at least 10 delegates in each RAN2 meeting and 20 delegates in each RAN1 meeting

LTE (Long Term Evolution) – Feature and Function

• Downlink: OFDMA

• Uplink: Single Carrier (SC)-FDMA

• Sub-carrier: 15 KHz

• Flexible bandwidth: 1.4 ~ 20 MHz (1.4, 3, 5, 10, 15, 20)

• 72 sub-carriers for cell operation in minimum transmission bandwidth (i.e. 1.4 MHz)

• MIMO: max 4 x 4 (i.e. 4 antenna), DL only

• Modulation: QPSK, 16QAM and 64 QAM

LTE (Long Term Evolution) – Feature and Function

• Maximum data rate:

• DL: 300 Mbps

• UL: 75 Mbps

• TTI (Transmission Time Interval): 1 ms <= reduce latency

• Flatter architecture <= reduce latency

• UMTS: CN, RNC, Node B

• LTE: CN, eNode B

• Packet switch only

• GSM/UMTS support both Circuit Switch and Packet Switch

• Interworking with 2G/3G/CDMA

• Home eNode B support (i.e. femto cell)

LTE (Long Term Evolution) – UE Category (DL)

Source: 3GPP TS 36.306

4149776299552Category 5

275376150752Category 4

2 <= Most UEs support this category

75376102048Category 3

25102451024Category 2

11029610296Category 1

Maximum number of supported layers for spatial multiplexing in DL (i.e. number of antenna)

Maximum number of bits of a DL-SCH transport block received within a TTI

Maximum number of DL-SCH transport block bits received within a TTI

UE Category(Downlink)

LTE (Long Term Evolution) – UE Category (UL)

Source: 3GPP TS 36.306

Yes75376Category 5

No51024Category 4

No51024Category 3

No25456Category 2

No5160Category 1

Support for 64QAM in ULMaximum number of bits of an UL-SCH transport block transmitted within a TTI

UE Category (Uplink)

LTE Deployment Status

• 101 LTE network commitments in 41 countries

• TeliaSonera commercially launch LTE in Stockholm, Sweden

• Data-only service for data card

• 19 LTE networks are expected to be in commercial service by end 2010 or 2011

• Verizon Wireless

• Vodafone DE

• NTT DoCoMo

Source: GSA (the Global mobile Suppliers Association), Mobile broadband status – August 2010

LTE Deployment Status – Operator Strategy

• Data-only services on LTE

• Quickly deployment of LTE because of no voice support

• Data card, wireless router/gateway supporting single mode or multi-mode (LTE/3G/2G)

• Data-only services on LTE with 2G-3G voice

• Voice is supported by CS fallback to GSM/UMTS/CDMA2000

• Mobile phone supporting multi-mode (LTE/3G/2G)

• Voice and data services on LTE.

• Voice is supported by IMS

• Mobile phone supporting multi-mode (LTE/3G/2G)

• SRVCC may be required to support handover IMS call in LTE to CS call in 2G/3G

LTE Deployment Status – Operator Strategy

• Operator may offer LTE data service only in the initial deployment (for data card only)

• Operator may offer LTE data services with voice services on the 2G-3G network first and later migrate their voice traffic to LTE.

• Alternatively, operator may decide to jump straight to the third strategy, offering all voice and data services on LTE without ever deploying the first two options.

LTE - Advanced

• Carrier Aggregation (CA)

• Maximum five Rel-8 20 MHz carriers aggregated to support maximum 100 MHz bandwidth

• Contiguous or non-contiguous carriers can be aggregated

• Higher order MIMO

• DL :8x8, UL: 4x4

• LTE-Advanced system supporting CA and MIMO

• DL data rate up to 1Gbps, UL data rate up to 500 Mbps

• LTE-Advanced meet ITU-R 4G requirement

• LTE and WiMAX 16e are not 4G because they don’t meet ITU-R 4G requirement

LTE - Advanced

0.07 bps/Hz0.03 bps/HzCell-Edge Spectral Efficiency UL

0.09 bps/Hz0.06 bps/HzCell-Edge Spectral Efficiency DL

2.0 bps/Hz1.4 bps/HzAverage Spectral Efficiency UL

2.6 bps/Hz2.2 bps/HzAverage Spectral Efficiency DL

15 bps/Hz6.75 bps/HzPeak Spectral Efficiency UL

30 bps/Hz15 bps/HzPeak Spectral Efficiency DL

50 ms100 msLatency Control Plane

10 ms10 msLatency User Plane

Up to 100 MHzUp to 40 MHzSpectrum Allocation

LTE-Advanced Projected Capability

IMT-Advanced RequirementItem

LTE - Advanced

• Relay function

• Improve coverage to have better in-building penetration, better signal quality and user rates will be much improved

• LTE-Advanced will be defined in 3GPP Release 10

• Stage-1: feature study starts in 2008

• Stage-2: functionalities lock down in Dec, 2010

• Stage-3: LTE-Advanced specifications will be completed in 2011

• LTE-Advanced will be deployed soon once LTE is deployed widely

• Similar to WCDMA to HSPA

hspa+/lte – from standard to market -...

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