Following the phenomenal global success of LTE, the stage is set for the foray of LTE Advanced. Industry leaders have already gotten a head start with its first step: carrier aggregation. Join us to explore the success factors behind LTE proliferation and an impressive lineup of enhancements that LTE Advanced is bringing.
For more information please visit:
www.qualcomm.com/lte-advanced
"Subclassing and Composition – A Pythonic Tour of Trade-Offs", Hynek Schlawack
LTE Advanced is Here!
1. Mobilize
October 16th 2013, San Francisco, CA
LTE Advanced is Here!
Speaker:
Prakash Sangam, Director - Tech Marketing
1
2. • LTE success factors
• LTE Advanced carrier aggregation is here!
• Bringing more out of small cells with LTE Advanced
• Q&A
Agenda
2
3. LTE has a vibrant ecosystem with two flavors: FDD and TDD
Global LTE network launches
213
Launches
21
>450
Operators investing in LTE
LTE TDD momentum
TDD Launches
222
TDD Devices Announced
Large and growing device ecosystem
1064
Devices
111
Vendors
> 126 Million Global LTE/3G multimode connections
Source: www.gsacom.com , Sep 2013
3
5. Seamless 3G interworking is the foundation to successful LTE
Enables consistent
broadband experience
outside LTE coverage
Enables global
roaming for the
foreseeable future
Enables ubiquitous
voice services—
even with VoLTE1
Multimode
LTE (FDD and/or TDD)
3G (and 2G)
LTE FDD/TDD
WCDMA/HSPA+
1X, EV-DO
TD-SCDMA
GSMA/EDGE
Enables ubiquitous data coverage, voice services, and global roaming
1Fallback
to 3G/2G (CSFB) since 2012; VoLTE with SRVCC ensures seamless voice, but CSFB still needed for roaming
Qualcomm Gobi is a product of Qualcomm Technologies, Inc.
5
6. Inherent LTE FDD/TDD interworking and seamless voice
Initial launches
Initial voice solution
Long-term voice solution
LTE data devices
LTE data handsets
LTE VoIP handsets
LTE for data only
LTE for data
2G/3G for voice
Simultaneous LTE VoIP
and rich data services
LTE TDD/FDD with
2G/3G multimode
launched globally1
Circuit switched fallback
(CSFB) to 2G/3G voice
launched globally
(FDD and TDD)
Coming: VoLTE with single radio
voice call continuity (SRVCC)
+ CSFB to 2G/3G voice for roaming
Inherent seamless TDD/FDD
interworking for data
Inherent seamless TDD/FDD
interworking
Inherent seamless TDD/FDD
interworking for VoLTE
2G/3G coverage continuity and roaming
1Including seamless
data LTE and 3G interworking with mobility through redirection, and packet switched handover.
6
7. Ability to support true heterogeneous networks
Small cells
everywhere
Indoor/outdoor
of different flavors
More spectrum;
paired, unpaired,
higher bands
Over 40 bands and counting
Multiple modes
LTE FDD/TDD, 1X/EV-DO
WCDMA/HSPA+,
TD-SCDMA, GSM/EDGE
ENTERPRISE
Multiple connectivity
such as Wi-Fi for
opportunistic offload
Device in the center
of complexity
METRO
RESIDENTIAL
Seamless experience across technologies, cells, bands
7
9. Qualcomm’s unique advantage—we solve LTE complexities
Hiding the complexity underneath the most seamless mobile connectivity
Connectivity
Wi-Fi
BT
Radio Frequency Bands
GPS
19
23
24
26
27
28
21
2
3
5
6
EV-DO
4
8
9
1
GSM/EDGE
18
CDMA 1x
Handover Techniques (Multiple Can Apply in Each Case)
System Selection
Blind Redirection
Redirection w/ Measurements
Reselection
25
PS Handover
CS Fallback
CSFB w/ SI Tunneling
Single Radio VCC
22
33
35
36
37
38
7
10
11
12
20
34
39
40
41
42
43
13
14
17
44
WCDMA/HSPA
TD-SCDMA
LTE FDD/TDD
Handover Combinations (Hypothetical Examples)
LTE
2G/3G
9
10. The modem is the foundation—the bar is getting higher
Then you can integrate mobile computing,
graphics and multimedia components
THE BAR IS GETTING HIGHER AND HIGHER
Optimize power and performance
in a mobile environment
LOW
POWER
HIGH
DATA
RATE
SMALL
SIZE
MITIGATE
HEAT
LOW
COST
Solve interworking complexity
Support all technologies, bands, modes, ...
LTE
FDD
EV-DO
LTE
TDD
GSM/
EDGE
UMTS
7 Cellular Standards
+Standards Evolution
Components of the type(s) mentioned in this slide are products of Qualcomm Technologies, Inc. and/or its subsidiaries.
CDMA
TD1X
SCDMA
700/
850/900
1500/
1700/1900
~40 RF Bands
17 LTE Voice Modes
2300/
2600
Wi-Fi
GNSS
BT
Wi-Fi, BT, GNSS
10
11. Qualcomm Technologies already on its 3rd generation Gobi LTE
modems
Continuously increasing level of features, interworking and integration
Third Generation
World’s First LTE/3G multimode with Cat4 and Carrier
Aggregation (launched June 2013)
Second Generation
First Generation
World’s First Mobile Platform (Modem+AP) with
integrated LTE/3G Multimode
World’s first integrated LTE/3G
MDM 9x15
MDM 9600
Snapdragon
S4 (8960)
Snapdragon
400 (8930)
MDM 9200
100Mbps/50Mbps DL/UL
FDD and TDD
2010-2011
Snapdragon
800 (8974)
Snapdragon
400 (8926)
LTE 150Mbps/50 Mbps DL/UL
LTE Advanced Carrier aggregation
TD-SCDMA
LTE Broadcast (eMBMS)
VoLTE
2012
Note: Snapdragon integrates the Gobi modems, but Gobi modems are also offered as a standalone modem product
Qualcomm Snapdragon and Qualcomm Gobi are products of Qualcomm Technologies, Inc.
MDM 9x25
2013
11
12. Enabling multimode LTE in all smartphone tiers
800
Snapdragon 800
(Launched with 3rd Gen. Gobi modem)
Premium smartphones
and tablets
600
Snapdragon 6001
400
(Launched with 2nd Gen. Gobi modem)
High-end smartphones
and tablets
(3rd
Snapdragon 400
Gen. Gobi modem coming)
High-volume smartphones
in emerging regions
1 Snapdragon 600
launched 1H 2013 uses separate 2nd generation LTE Gobi modem MDM 9x15. Snapdragon 800 (8974 launched June 2013) and newest 400 (8926) have both integrated 3rd gen. LTE support Cat4(150Mbps) and LTE Advanced carrier aggregation
12
Qualcomm Snapdragon is a product of Qualcomm Technologies Inc.
13. • LTE success factors
• LTE Advanced carrier aggregation is here!
• Bringing more out of small cells with LTE Advanced
• Q&A
Agenda
13
14. A strong LTE evolution path
2013
FDD and TDD
support
Enhanced voice fallback (CSFB),
VoLTE, LTE Broadcast (eMBMS)
Rel-9
Rel-8
LTE
Mbps1
DL: 73 – 150
UL: 36 – 75 Mbps1
(10 MHz – 20 MHz)
1Peak
2014
2015
Carrier Aggregation, relays,
HetNets (eICIC/IC), Adv MIMO
Realizes full benefits of
HetNets (FeICIC/IC)
Rel-10
Rel-11
2016+
LTE Direct, Hetnets enhancements,
Multiflow, WiFi interworking,
Rel-12 & Beyond
LTE Advanced
DL: 3 Gbps2
UL: 1.5 Gbps2
( Up to 100 MHz)
rates for 10 MHz or 20 MHz FDD using 2x2 MIMO, standard supports 4x4 MIMO enabling peak rates of 300 Mbps.
2Peak data rate can exceed 1 Gbps using 4x4 MIMO and at least 80 MHz of spectrum (carrier aggregation), or 3GBps with 8x8
MIMO and 100MHz of spectrum. Similarly, the uplink can reach 1.5Gbps with 4x4 MIMO.
Commercial
Note: Estimated commercial dates.
14
Created 7/18/2013
15. Different dimensions of improvements—most gain from HetNets
LTE Carrier #3
Leverage wider bandwidth
Carrier aggregation across
multiple carriers and multiple bands
LTE Carrier #1
LTE Carrier #4
Aggregated
Data Pipe
LTE Carrier #2
Leverage more antennas
Downlink MIMO up to 8x8, enhanced Multi User MIMO
and uplink MIMO up to 4x4. Coordinated multipoint (CoMP)
MIMO
Higher spectral
efficiency
(bps/Hz)
Leverage HetNets
With advanced interference management (eICIC/IC)
Primarily higher
data rates
(bps)
LTE Carrier #5
LTE
Advanced
Up to
100 MHz
Small Cell
Higher spectral
efficiency per
coverage area
(bps/Hz/km2)
15
17. Carrier aggregation launched—key to enabling 150 Mbps
Carrier aggregation is the first step of LTE Advanced
Uplink
10 MHz + 10 MHz
150 Mbps needs 20 MHz of bandwidth and many operators
do not have 20 MHz of contiguous bandwidth
Downlink (Interband)
10 MHz
Band X
Band Y
Band X
Carrier Aggregation allows operators to combine 10 MHz
from different bands to achieve 150 Mbps peak rate
Snapdragon 800
8974
LTE Advanced
DL LTE
Carrier
MDM 9x25
LTE Advanced
DL LTE
Carrier
UL LTE
Carrier
Aggregated
Data Pipe
World’s first mobile device with LTE Advanced Carrier Aggregation
powered by Qualcomm® Snapdragon™ 800 June 2013
Note: Snapdragon 800 includes 8974, which integrates our third generation Gobi LTE modem, but Gobi modems are also offered as a standalone modem product
17
Qualcomm Snapdragon and Qualcomm Gobi are products of Qualcomm Technologies Inc.
18. Up to 20 MHz
Up to 20 MHz
Up to 20 MHz
Up to 20 MHz
Up to 20 MHz
Higher peak
data rates
LTE Carrier #3
LTE Carrier #1
LTE Carrier #4
Aggregated
Data Pipe
Up to
100 MHz
LTE Carrier #2
LTE Carrier #5
Higher user data rates
and lower latencies for
all users
More capacity for
typical ‘bursty’ usage1
Leverages all
spectrum assets
Carrier Aggregation—fatter pipe to enhance user experience
1The
typical bursty nature of usage, such as web browsing, means that aggregated carriers can support more users at the same response (user experience) compared to two individual carriers, given that the for carriers are partially loaded which is typical
in real networks. The gain depends on the load and can exceed 100% for fewer users (less loaded carrier) but less for many users. For completely loaded carrier, there is limited capacity gain between individal carriers and aggregated carriers,
18
19. Carrier aggregation increases capacity for typical network load
Bursty data applications
Carrier aggregation capacity gain
Burst Rate
(normalized)
6
2 10MHz Single Carriers
10MHz + 10MHz Carrier Aggregation
User experience
5
Data bursts
4
3
2
Partially
loaded
carriers
1
Capacity gain can exceed 2x
(for same user experience)1
0
0
Idle time
3
6
6
12
9
18
12
24
15
30
Load
(Mbps)
1Carrier aggregation doubles burst rate for all users in the cell, which reduces over-the-air latency ~50%, but if the user experience is kept the same (same burst rate), multicarrier can instead support more users for partially loaded carriers. The gain depends on the load and can exceed 100% for fewer users
(less loaded carrier) but less for many users (starting to resemble full buffer with limited gain). Source: Qualcomm simulations, 3GPP simulation framework, FTP traffic model with 1MB file size, 57 macro cells wrap-around, 500m ISD (D1), 2x2 MIMO, TU3, NLOS, 15 degree downtilt 2GHz spectrum.,
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21. More antennas—large gain from receive diversity
Downlink
1.7x
Diversity,
MIMO
(+ 2 x 2 MIMO)
1x
NodeB
4 Way
Receive
Diversity
Device
2 x 2 MIMO
LARGE GAIN,
NO STANDARDS OR
NETWORK IMPACT
MAINSTREAM
COMMERCIAL
Relative spectral efficiency
Note: LTE Advanced R10 and beyond adds up to 8x8 Downlink MIMO (Multiple Input Multiple Output), enhanced Multi User MIMO and uplink MIMO up to 4x4. Simulations: 3GPP framework, 21 macro cells wrap-around, 500m ISD (D1), 10MHz FDD,
carrier freq 2GHz, 25 UEs per cell, TU 3km/h, full-buffer traffic, no imbalance or correlation among antennas. 2x4 MIMO used for receive diversity gain of 1.7x compared to 2x2 MIMO, similarly 2x3 diversity provides a 1.3x gain over 2x2 MIMO
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22. Leverage multiple antennas with fiber installations
Coordinated Multipoint (CoMP) progression for more capacity and better user experience
Coordinated
beamforming
Coordinated
scheduling
Remote Radio
Head (RRH)
Macro
Joint
transmission
Remote Radio
Head (RRH)
Remote Radio
Head (RRH)
Same or different cell identity across multiple cells
Central
processing/scheduling
(requires low latency fiber)
22
Note: CoMP enabled by TM9 or TM10 transmission modes in the device and network. Picture focuses on downlink CoMP techniques, CoMP also applies to the uplink
23. • LTE success factors
• LTE Advanced carrier aggregation is here!
• Bringing more out of small cells with LTE Advanced
• Q&A
Agenda
23
24. Small cell
Range Expansion
Higher capacity, network load balancing, enhanced user experience, user fairness
It’s not just about adding small cells — LTE Advanced brings
even more capacity and enables hyper-dense HetNets1
1By
applying advanced interference management to HetNets, a.k.a eICIC/IC
24
25. 1X
Small cell
Range Expansion
(eICIC/IC)
Macro
Only
LTE R8
Macro+
4 Picos
with Range Expansion
LTE Advanced
1.4X
LTE R8
2.8X
Macro+
4 Picos
Data rate improvement2
Increased network capacity and enhanced user experience
1By
applying advanced interference management to HetNets. 2Median downlink data rate. Assumptions: 4 Picos added per macro and 33% of users dropped in clusters closer to picos (hotspots) : 10 MHz FDD, 2x2 MIMO, 25 users and 500m ISD. Advanced interference management:
enhanced time-domain adaptive resource partitioning, advanced receiver devices with enhanced RRM and RLM1Similar gain for the uplink
25
26. More users benefit from small cells with range expansion
Range expansion
More users on small cell2
better macro offload
Range Expansion
LTE R8
82%
Small cell
57%
37%
Enabled By:
Adaptive Resource Partitioning (eICIC)1
Advanced Receiver Devices with Interference Cancellation (IC)
6%
2
12%
4
26%
10
Number of Picos per Macro Cell
Assumptions: TR 36.814, Macro ISD=500m, 100 antenna downtilt 25 UEs per Macro cell, uniform random layout, 10 MHz FDD, 2x2 MIMO.
1And enhanced RRM and RLM to allow handover to weak cells, to maintain reliable link with weak cells, and to provide accurate feedback with resource partitioning. Standards name eICIC: Enhanced
inter-cell interference coordination 2For uniform, random user distribution
26
28. Adaptive resource partitioning (eICIC):
Time
Macro
Small
Cells
Macro
Small
Cells
Macro
Small
Cells
eICIC (R10) stands for enhanced Inter Cell Interference Coordination (coordination in the time domain). Also need enhanced RRM and RLM to allow handover to weak cells, to maintain reliable link with weak cells, and to provide accurate feedback with resource
28
partitioning.
29. To discover
Small Cells
To enable higher
data rates
To enable full
range expansion
Advanced receiver devices with interference cancellation
Cancelling overhead channels benefits all deployment scenarios,
but most gain together with network interference coordination (eICIC)
Device interference cancellation cancels overhead channels such as such as synch, broadcast and common reference signal(CRS). Performance requirements part of 3GPP R11
29
30. LTE Advanced HetNets: Our test bed today—your network tomorrow
Over-The-Air HetNet
Macrocells and picocells in a co-channel
deployment since March 2011
Demonstrating pico discovery and range
expansion with mobility since 2012
Opportunistic Hetnets with full VoIP
mobility demonstrated since 2013
Evaluating the design and features to realize
the full benefits of heterogeneous networks
30
32. LTE Advanced is a key enabler to the 1000x data challenge
1000x
Continue to evolve LTE:
Multiflow, Hetnets enhancements
Opportunistic HetNets
LTE Direct for proximity services
LTE Broadcast
Carrier Aggregation (TDD and FDD)
Authorized Shared Access (ASA)
Higher spectrum bands (esp. TDD)
Hetnets with eICIC/IC
interference management
New deployment models, e.g.
neighborhood small cells
Note: to learn more about 1000x go to www.qualcomm.com/1000x ; www.qualcomm.com/hetNets and www.qual;comm.com/spectrum
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33. ~37X
SMALL CELL
SMALL
~21X CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
~11X CELL
SMALL
SMALL CELL
~6X
SMALL CELL
SMALL CELL
SMALL CELL
+16 Small
Cells
Capacity scales with small cells
+32 Small
Cells
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
+8 Small
Cells
SMALL CELL
SMALL CELL
SMALL CELL
+4 Small
Cells
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
SMALL CELL
added1
LTE Advanced with 2x Spectrum added
LTE Advanced, showing what is possible now, add spectrum and
improved techniques for gradual increase towards 1000x
Roadmap to 1000x: Capacity scales with small cells deployed
thanks to advanced interference management (eICIC/IC)
1 Assumptions: Pico type of small cell, 10MHz@2GHz + 10MHz@3.6GHz,D1 scenario macro 500m ISD, uniform user distribution scenario. Gain is median throughput improvement, from baseline with macro only on 10MHz@2GH, part of gain is addition of 10MHz
spectrum. Users uniformly distributed—a hotspot scenario could provide higher gains. Macro and outdoor small cells sharing spectrum (co-channel)
33
35. HetNets: combining multiple cells and technologies
WAN
‘Anchor’
WAN
‘Booster’
Wi-Fi
‘Booster’
Macro
Small Cell
Across carriers1,
across FDD/TDD2
Improved offload
to small cells
Across cells
—multiflow2
Efficient network
load balancing
1 Carrier aggregation from R10 LTE within FDD or TDD. 2 Multiflow is a 3GPP R12 LTE candidate., as well as FDD and TDD aggregation. 3 RAN interworking across LTE, HSPA+ and Wi-Fi is a 3GPP R12 candidate.
Interworking across
technologies3
Improved
mobility
35
36. HetNets: next generation advanced receivers
To mitigate interference—even
more beneficial in dense HetNets
LTE advanced can cancel
common signaling1
Next step for LTE advanced:
further enhanced LTE receivers2
Inter cell
interference
Serving cell
Interference Cancellation
1Performance
requirement added to 3GPP for cancellation of common signaling (PSS/SSS/PBCH/CRS) in Rel 10/11. 2Broad study on UE interference suppression with & without network assistance in 3GPP R12
36
37. Tighter Wi-Fi—3G/4G interworking
Convergence of Cellular
and Wi-Fi Infrastructure
1) Seamless Access—
Passpoint/Hotspot 2.01
Combine Wi-Fi
and 3G/4G
2) Operator Deployed Wi-Fi
access managed via 3G/4G2
1 Passpoint is the WFA certified implementation of hotspot 2.0, supported by Qualcomm (QCA, and Qualcomm Technologies, Inc.), which enables a simpler, secure and seamless access to Wi-Fi networks.
2 Such as more dynamic control of which traffic to offload to Wi-Fi through device centric and/or network centric solutions. Standards enhancements for RAN network centric interworking approaches considered for R12 and beyond.
37
38. LTE evolving and expanding into new areas
Same content
~3.5 GHz
LTE Direct: integrated device to
device discovery & communication
for proximity services
Backhaul solutions with
LTE waveform line of sight,
non line of sight, relays
First step towards
higher bands
Enhancements to
support much higher
spectrum bands
Dynamic LTE broadcast,
also going into areas
beyond mobile
38
39. Summary: Qualcomm LTE advanced leadership
Standards Leadership
A main contributor to key
LTE Advanced features
Major contributor for ITU
IMT-Advanced submission
Instrumental in driving eICIC/IC
Industry-first Demos
MWC 2011: Live HetNet Demo
MWC 2012: Live Over-The-Air HetNet
Demo with Mobility
MWC 2013: Live OTA opportunistic
HetNet Demo with VoIP Mobility.
Authorized Shared Access (ASA) demo
Industry-first Chipsets
Third generation Gobi LTE modem
launched June 13’ with carrier aggregation in
Snapdragon 800
8974
LTE Advanced
MDM 9x25
LTE Advanced
Snapdragon 800
39
Qualcomm Snapdragon and Qualcomm Gobi are products of Qualcomm Technologies, Inc.
40. Questions? - Connect with Us
www.qualcomm.com/technology
http://www.qualcomm.com/blog/contributors/prakash-sangam
BLOG
@Qualcomm_tech
http://www.youtube.com/playlist?list=PL8AD95E4F585237C1&feature=plcp
http://www.slideshare.net/qualcommwirelessevolution
http://storify.com/qualcomm_tech
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