02 Overview Rel-6 And Rel-7 Features

www.3gamericas.org

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

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

Roadmap of GSM Evolution GPRS speeds

EDGE speeds

UMTS speeds

HSDPA speeds •DSL/CABLE COMPLIMENT

•WORKGROUP COLLABORATION •VERTICAL-SPECIFIC DEVICES ( X-RAY VIEWER) •HOME/BUSINESS SECURITY VIDEO MONITORING •WIRELESS MP3 PLAYER/MEDIA DEVICE •VIDEO PHONE, PUSH-TO-VIDEO •DIGITAL TV, RADIO •VIDEO, MUSIC ON DEMAND •INTERACTIVE GAMES •DATA CONNECT •CORPORATE APPLICATION ACCESS

•BASIC MMS •HTML BROWSING •LOCATION-BASED SERVICES •RINGTONES •HIGHER-END GAMES •SIMPLE GAMES •MUSIC AND MUSIC VIDEOS •WAP BROWSING •MEGAPIXEL CAMERA MMS •NEWS AND SPORTS VIDEO CLIPS •TEXT EMAIL •VIDEO MESSAGES •TEXT MESSANG •VIDEO RINGTONES •IM

“Typical” speeds

35 kbps

70-135 kbps

200-300 kbps

400-700 kbps

How do data rates compare?

GPRS CS 3/4 EDGE MCS9 UMTS HSDPA

4 sec 3 sec 0.9 sec 0.6 sec

1

GPRS CS 3/4 EDGE MCS9 UMTS HSDPA

2

sec

4

16 sec 7 sec 3.2 sec 1.2 sec

4

GPRS CS 3/4 EDGE MCS9 UMTS HSDPA

3

8

12

16 sec

343 sec 125 sec 67.2 sec 12.3 sec

60 120 180 240 300 sec

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

U UM MTTS S -- H HS SD DP PA A S a Savviinngg:: 00.3 .3 sseecc ((333% 3%))

U UM MTTS S -- H HS SD DP PA A S Saavviinngg:: 22 sseecc ((62 62% %))

U UM MTTS S -- H HS SD DP PA A S Saavvin ingg:: 5544.9 .9 sseecc ((8811% %))

Application Data Size 20 KBytes

125 KBytes

3 MBytes

Broadband Wireless Technology Evolution Spectrum drives choice of broadband technology

GSM, EDGE

EDGE Evolution 850 / 1900 MHz

WCDMA

TD-SCDMA HSPA+

HSPA

0.7 / 1.7 / 2.1 GHz

LTE Rev A Rev B

EVDO

EV-DO (UMB)

CDMA

2.3/2.5 GHz WiMAX-802.16e

(Mobile)

WiMAX-802.16d (Fixed)

2006

2007

2008 US spectrum

2009

2010

Architecture evolution • A single network element for user plane in radio and core network • Same architecture in HSPA+, LTE and in WiMAX HSPA (3GPP R6)

HSPA+ (3GPP R7)

LTE (3GPP R8)

GGSN

GGSN

SGSN

By- pass for user plane

RNC

WiMAX ASN GW

SAE GW

Ciphering and IP header compression

RNC Node-B

functions into NB

Node-B with RNC functions

eNode-B

Base station

3GPP Evolution (Release 5 – Release 8) Basic HSDPA+HSUPA

HSPA evolution

Long term evolution (LTE) + Further HSPA evolution

HSPA HSPAR5 R5 •

HSDPA 14 Mbps

HSPA HSPAR6 R6 • •

HSUPA 5.76 Mbps MBMS

HSPA HSPAR7 R7 • • • • • • • • •

Enhanced FACH Continuous packet connectivity L2 optimization Flat architecture MIMO Higher order modulation VoIP capacity MBMS evolution Evolved EDGE

3GPP 3GPPR8 R8 • • • • •

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

HSPA Deployment Schedule • •

HSUPA commercial 2007 HSPA evolution commercial 2009

3GPP schedule 3GPP R5 2002

3GPP R6 2003

Commercial

2004

3GPP 3GPP R7 R8

2005

2006

3GPP R5

2007 3GPP R6

2008

2009

2010

3GPP R7

3GPP R8

HSPA pushes functionalities to base station HSDPA HSUPA WCDMA Release 99 uplink/downlink Mobile HSPA scheduling and retransmission control in base station

Radio network controller RNC

Base station

WCDMA R99 scheduling and retransmission control in RNC

Release 99

HSPA

Retransmission delay

>100 ms

12 ms

Scheduling delay

>1000 ms

2 ms

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

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

User 1 CQI Scheduled user

User 2 CQI

TTI 2

TTI 3

TTI 4

HSDPA vs HSUPA Concepts HSUPA is like “reversed HSDPA”, except HSDPA HSDPA

HSUPA HSUPA

Modulation Modulation

QPSK QPSKand and16-QAM 16-QAM

BPSK BPSKand andDualDualBPSK BPSK

Soft Softhandover handover

No No

Yes Yes

Fast Fastpower power control control

No No

Yes Yes

Scheduling Scheduling

Point Pointtoto multipoint multipoint

Multipoint Multipoint totopoint point

Non-scheduled Non-scheduled transmission transmission

No No

Yes, Yes,for forminimum/ minimum/ guaranteed guaranteedbit bitrate rate

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

Efficient UE power amplifier

Required for near-far avoidance

Scheduling cannot be as fast as in HSDPA Similar to R99 DCH but with HARQ

Adaptive modulation and coding QPSK 2 bits/symbol

16QAM 4 bits/symbol

64QAM 6 bits/symbol

Rel. 7 HSPA modulation

Release 99: QPSK

Rel. 5/6 HSPA Modulation

Channel bit rate of

Dowlink - QPSK & 16QAM

Dowlink - QPSK, 16QAM & 64QAM

480 kbps (SF 16)

Uplink – QPSK

Uplink - QPSK & 16QAM

Channel bit rate of 960 kbps (SF 16)

Use of higher order modulation and high-rate errorcorrection coding for good radio channel conditions ⇒ Improved user data rate, higher overall throughput

HSPA UE categories HSDPA Category

Modulation

Inter-TTI

11

QPSK only

2

3630

0.9 Mbps

-

-

12

QPSK only

1

3630

1.8 Mbps

-

-

1/2

QPSK/16QAM

3

7298

1.2 Mbps

-

-

3/4 5/6 7/8

QPSK/16QAM

7298 7298 14411

1.8 Mbps

QPSK/16QAM

2 1 1

-

7.2 Mbps

9

QPSK/16QAM

1

20251

-

-

10.1 Mbps

10

QPSK/16QAM

1

27952

-

-

14.0 Mbps

HSUPA Category

Codes

1 2 3 4 5 6

QPSK/16QAM

Transport 5 Codes 10 Codes 15 Codes Block size

Data rate Data rate with 10 ms with 2 ms

1 x SF4

0.73 Mbps

-

2 x SF4

1.46 Mbps

1.46 Mbps

2 x SF4

1.46 Mbps

-

2 x SF2

2 Mbps

2.9 Mbps

2 x SF2

2 Mbps

-

2 x SF4 + SF2

2 Mbps

5.76 Mbps

3.6 Mbps

• •

Theoretical peak downlink bit rate up to 14 Mbps Initially 1.8 Mbps and 3.6 Mbps capabilities with 5 codes

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 larger bandwidth of 20 MHz 3GPP R5

3GPP R6

3GPP R71

rate k a e p k n Downli

28 Mbps1

LTE: 170 Mbps HSPA: 42 Mbps2 LTE: 50 Mbps

14 Mbps 14 Mbps

3GPP R8

11 Mbps 5.7 Mbps

0.4 Mbps

k rate a e p k n i Upl 1With 2With

2x2 MIMO and 16QAM 2x2 MIMO and 64QAM likely for R8

Continuous Packet Connectivity in 3GPP R7 •

Continuous packet connectivity includes 1. Uplink discontinuous transmission 2. Downlink discontinuous reception 3. HS-SCCH less HSDPA for VoIP

•

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

HSPA R6

HSPA R7

HS-DSCH DPCCH

HS-DSCH DPCCH

User reading web page

User moved to FACH/PCH Connection goes immediately to gating mode to save mobile power when data transfer is over

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 DPDCH DPCCH

WCDMA R99 CS voice

20 ms HSPA with continuous packet connectivity No transmission ⇒ less power consumption and less interference

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 200 180

Similar end-to-end delay assumed in all cases

AMR12.2 kbps

160

Users per cell

• •

140

3x

120 100 80

2x

60 40 20 0 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

Thank you! www.3gamericas.org

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