02 Overview Rel-6 and Rel-7 Features

Overview of Rel-6 and Rel-7 FeaturesDhruv Khanna, Sales Director-Radio, Nokia Siemens Networks

www.3gamericas.org

Operator Radio Access Challenges and Opportunities

• Need for enhanced CAPEX & OPEX efficiency in networks– ARPU stable/declining, while traffic increasing exponentially– Network becoming more complex

• GSM and UMTS will co-exist for some time – Modernization and basic GSM build-out is still on a growth curve– GSM will be needed for coverage, roaming, and terminal population reasons

for several years – Cheaper coverage and indoor propagation bringing UMTS to 850MHz band in

Americas, and 900MHz in Europe and Asia– GSM and UMTS will continue to grow in 1900 MHz spectrum in the Americas

• Growth will come from data – Requires efficient broadband wireless service network

• With adequate capacity and speeds for today• Also having an evolution path for the future

“Typical”speeds

GPRS speeds EDGE speeds UMTS speeds HSDPA speeds

•DATA CONNECT•CORPORATE APPLICATION ACCESS

•TEXT EMAIL•TEXT MESSANG •IM

•VIDEO PHONE, PUSH-TO-VIDEO•DIGITAL TV, RADIO•VIDEO, MUSIC ON DEMAND•INTERACTIVE GAMES

•WORKGROUP COLLABORATION•VERTICAL-SPECIFIC DEVICES ( X-RAY VIEWER)•HOME/BUSINESS SECURITY VIDEO MONITORING•WIRELESS MP3 PLAYER/MEDIA DEVICE

•HIGHER-END GAMES•MUSIC AND MUSIC VIDEOS•MEGAPIXEL CAMERA MMS•NEWS AND SPORTS VIDEO CLIPS•VIDEO MESSAGES•VIDEO RINGTONES

•DSL/CABLE COMPLIMENT

•BASIC MMS•HTML BROWSING•LOCATION-BASED SERVICES

•RINGTONES•SIMPLE GAMES•WAP BROWSING

400-700kbps

200-300kbps

70-135kbps

35kbps

Roadmap of GSM Evolution

How do data rates compare?

Assumption: Typical data rates - UMTS 384 kbps, HSDPA 2 Mbps

UMTS - HSDPA Saving:

54.9 sec (81%)


54.9 sec (81%)sec60 120 180 300240 sec

GPRS CS 3/4EDGE MCS9UMTSHSDPA

3 MBytes125 sec

343 sec

67.2 sec12.3 sec


2 sec (62%)


2 sec (62%)4 sec

16 sec

8 12 16 sec

7 sec3.2 sec

1.2 sec

125 KBytes


20 KBytes


0.3 sec (33%)


0.3 sec (33%)sec1 2 3 4 sec


4 sec

0.6 sec

3 sec0.9 sec

Application Data Size

Broadband Wireless Technology Evolution

CDMAEVDO Rev A

Rev B EV-DO (UMB)

WCDMA

GSM, EDGE

WiMAX-802.16d (Fixed)

WiMAX-802.16e (Mobile)

EDGE Evolution

HSPA HSPA+

2006 2007 2008 2009 2010

TD-SCDMA

LTE

850 /1900 MHz

2.3/2.5GHz

0.7 /1.7 / 2.1

GHz

US spectrum

Spectrum drives choice of broadband technology

HSPA (3GPP R6)

HSPA+ (3GPP R7)

LTE (3GPP R8) WiMAX

Node-B

RNC

SGSN

GGSN

Node-B with RNC functions

GGSN

eNode-B

SAE GW ASN GW

Base station

• A single network element for user plane in radio and core network • Same architecture in HSPA+, LTE and in WiMAX

Ciphering and IP header compression

By- pass for user plane

RNC functionsinto NB

Architecture evolution

3GPP Evolution (Release 5 – Release 8)

HSPA R6HSPA R6 HSPA R7HSPA R7

• HSUPA 5.76 Mbps• MBMS

• Enhanced FACH• Continuous packet

connectivity• L2 optimization• Flat architecture• MIMO • Higher order

modulation• VoIP capacity• MBMS evolution• Evolved EDGE

HSPA R5HSPA R5

• HSDPA 14 Mbps

HSPA evolution

3GPP R83GPP R8

Long term evolution (LTE) +Further HSPA evolution

Basic HSDPA+HSUPA

• LTE: New PS only radio• Further HSPA evolution:• Uplink L2 optimization• Enhanced RACH• HSPA and I-HSPA

carrier sharing

HSPA Deployment Schedule

2004 2005 2006 2007 2008 2009 2010

Commercial

3GPP schedule

3GPP R6

3GPP R8

3GPP R7

3GPP R5

3GPP R6

3GPP R7

3GPP R8

20032002

3GPP R5

• HSUPA commercial 2007• HSPA evolution commercial 2009

HSPA pushes functionalities to base station

HSDPA

HSUPA

Mobile Base stationRadio network controller RNC

Release 99 HSPA

Retransmission delay >100 ms 12 ms

Scheduling delay >1000 ms 2 ms

HSPA scheduling and retransmission control in base station

WCDMA R99 scheduling and retransmission control in RNC

WCDMA Release 99 uplink/downlink

HSDPA uses fast feedback from mobile

• Terminal sends fast L1 feedback to Node-B– Channel Quality Info (CQI) – Transmission period typically every 4 ms

• CQI is used by HSDPA packet scheduling– Link adaptation– Multiuser scheduling decisions

L1 Feedback (CQI)

Data

TTI 1 TTI 2 TTI 3 TTI 4

User 1 CQI

User 2 CQI

Scheduled userProportional fair scheduling principle : allocate resources to the best user leading to multi-user diversity gain

HSDPA vs HSUPA Concepts

HSDPAHSDPA HSUPAHSUPA

ModulationModulation QPSK and 16-QAMQPSK and 16-QAM BPSK and Dual-BPSK

BPSK and Dual-BPSK

Soft handoverSoft handover NoNo YesYes

HSUPA is like “reversed HSDPA”, except

Fast power control

Fast power control NoNo YesYes

SchedulingScheduling Point tomultipointPoint to

multipointMultipoint to point

Multipoint to point

Non-scheduled transmission

Non-scheduled transmission NoNo Yes, for minimum/

guaranteed bit rateYes, for minimum/guaranteed bit rate

Required for near-far avoidance

Efficient UE power amplifier

Scheduling cannot be as fast as in HSDPA

Similar to R99 DCH but with HARQ

HSUPA could be better described as Enhanced DCH in the uplink than “reversed HSDPA”

Adaptive modulation and coding

QPSK 2 bits/symbol

16QAM 4 bits/symbol

64QAM 6 bits/symbol

Rel. 5/6 HSPA ModulationDowlink - QPSK & 16QAM

Uplink – QPSKChannel bit rate of 960 kbps (SF 16)

Release 99: QPSKChannel bit rate of 480 kbps (SF 16)

Rel. 7 HSPA modulationDowlink - QPSK, 16QAM & 64QAM

Uplink - QPSK & 16QAM

Use of higher order modulation and high-rate error-correction coding for good radio channel conditions

⇒ Improved user data rate, higher overall throughput

HSPA UE categories

• Theoretical peak downlink bit rate up to 14 Mbps

• Initially 1.8 Mbps and 3.6 Mbps capabilities with 5 codes

109

7/85/63/41/21211

-

-

-

3.6 Mbps

1.8 Mbps

1.2 Mbps

1.8 Mbps

0.9 Mbps --36302QPSK only

--36301QPSK only

QPSK/16QAM

QPSK/16QAM

QPSK/16QAM

QPSK/16QAM

QPSK/16QAM

QPSK/16QAM

14.0 Mbps10.1 Mbps

----

-279521-202511

7.2 Mbps144111-72981-72982-72983

HSDPACategory 5 CodesModulation 15 Codes10 CodesTransport

Block sizeInter-TTI

HSUPACategory

Data rate with 10 msCodes Data rate

with 2 ms

1 0.73 Mbps -1 x SF4

432

2 Mbps1.46 Mbps1.46 Mbps

2 x SF22 x SF42 x SF4

2.9 Mbps-

1.46 Mbps

65

2 Mbps2 Mbps

2 x SF4 + SF22 x SF2

5.76 Mbps-

HSPA Peak Data Rate Evolution

• HSPA downlink data rate increases with 2x2 MIMO and 64QAM up to 42 Mbps and uplink data rate with 16QAM up to 11 Mbps

• LTE further increases the data rate beyond 100 Mbps with largerbandwidth of 20 MHz

14 Mbps

0.4 Mbps

14 Mbps

5.7 Mbps

28 Mbps1

11 Mbps

LTE: 170 MbpsHSPA: 42 Mbps2

LTE: 50 Mbps

Downlink peak rate

Uplink peak rate

3GPP R5 3GPP R6 3GPP R71 3GPP R8

1With 2x2 MIMO and 16QAM2With 2x2 MIMO and 64QAM likely for R8

Continuous Packet Connectivity in 3GPP R7• Continuous packet connectivity includes

1. Uplink discontinuous transmission2. Downlink discontinuous reception3. HS-SCCH less HSDPA for VoIP

• Continuous packet connectivity gives– Low mobile power consumption for packet applications– Higher capacity due to less interference transmitted

DPCCHHS-DSCH

DPCCHHS-DSCH

Web page download

User reading web page

User moved to FACH/PCH

Connection goes immediately to gating mode to save mobile power when

data transfer is over

HSPA R6

HSPA R7

Continuous Packet Connectivity for VoIP

• Continuous packet connectivity improves also the capacity of low data rate services, like VoIP

• Data can be transmitted in short bursts and discontinuous operation can be utilized between the bursts

HSPA with continuous packet connectivity

DPCCHDPDCHWCDMA R99 CS voice

No transmission ⇒ lesspower consumption and

less interference

20 ms

VoIP spectural efficiency with 3GPP HSPA Release 7

• HSPA R7 VoIP can provide up to 2x greater voice capacity than CS voice with 1-rx UE • HSPA R7 VoIP with 2x more antennas can provide up to 3x higher voice capacity than

CS voice

2x

Similar end-to-end delay assumed in all cases

3x

AMR12.2 kbps

020

40

60

80

100

120

140

160

180

200

Use

rspe

r cel

l

CS voice(1-rx UE, 2- rx BTS)

HSPA VoIP (1-rx UE, 2-rx BTS)

HSPA VoIP (2-rx UE, 4-rx BTS)

Summary

• HSDPA offers the highest peak data rates of any widely available wide area wireless technology, with peak user-achievable rates of over 1Mbps

• HSDPA today has the lowest latency of any widely available wide-area wireless technology

• HSUPA will increase uplink speeds

• HSPA+ will have peak network rates of 28 Mbps or higher, and in 5 MHz will match LTE capabilities

• LTE will provide an extremely efficient OFDMA-based platform for future networks

• EDGE/HSPA/LTE is one of the most robust portfolios of mobile broadband technologies and is an optimum framework for realizing the potential of the wireless-data market

Overview of Rel-6 and Rel-7 FeaturesDhruv Khanna, Sales Director-Radio, Nokia Siemens Networks

www.3gamericas.orgThank you!

Documents

02 Overview Rel-6 and Rel-7 Features