Improving the spectral efficiency and the Mobile roa an xper ence with MIMO
www.huawei.com �������� �������
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[email protected]
HUAWEI WEI TECHNOLOGIES Co., Ltd.
HUAWEI WEI Confidential
Content 1.
Marke arkett st statu atus an and fu future ure ou outloo tlook k of of MIM MIMO O
2.
Ecosystem st status
3.
Addr Addres essi sing ng Past Past perf perfor orma manc nce e pro probl blem ems s thro throug ugh h
implementing new 3GPP spectral algorithms (and proprietary network based solutions……) 4.
Performances from real de lo ment cases
5.
Evol Evolu ution: ion: Combi ombin ning ing MIM MIMO O wit with h 64 64 QAM QAM and and
next steps to further improve spectral efficiency
Mobile Broadband, the Undoubted Trend ������ �������� ��������
���������� �������� �� 3��� ����� ��� ������������
HSPA DL: 14Mbps UL: 5.76Mbps
HSPA+ Rel 7 DL: 28Mbps UL: 5.76
HSPA+ Rel 8
HSPA+ Rel 9
HSPA+ Rel 10
DL: 42Mbps UL: 11Mbps
DL: 84Mbps UL: 23Mbps
DL: 168Mbps
DL: 150Mbps UL: 50mbps
2008
2009
2010
2011
DL: 300Mbps to 1Gbps
2012
2013
Source – Informa Telecoms & Media (Nov 2009) Huawei Wireless Intelligence 2010
• From 2010 and onwards, global data traffic is exponentially increasing compared to voice traffic • Deployment of HSPA+ and LTE networks, smart s mart traffic management, along with the utilization of new fre fre uenc enc ban bands will ill hel hel to han handl dle e th these ese dat data a tr traffi affic c re uirem iremen ents ts • HSPA+ & LTE will work as mutually supporting technologies instead of competitors to fulfill data demands • Upgrading HSPA+ network is an easy and cost effective way to provide higher capacity data services • MIMO is a key feature for high spectral efficiencies in both HSPA+ and LTE
MIMO: market status, trials, deployments
Bell Canada Telus
MIMO Trials
MIMO ready networks
Commercial deployments
VF Romania VF Czech VF Spain VF Italy VF Greece VF Nether. Cosm Co smot ote e Gr Tango Lux Netcom Norway Mobistar Belgium TelO2 De PTC Poland Aero2 Poland (900 MHz) TIM Swiscomm Switz
MTS
>11 commercial HSPA+ networks support 28 Mbps utilizing MIMO technology large MIMO trials experience from major suppliers
VF Egypt Vodacom South Africa Safarycom Kenya
Reliance India Airt Airtel el Indi India a Barthi India Mobiland SriLanka
PCCW M1 Singapore mo e SmartoneVDF HK
Evolution of spectral efficiency
600Mbps / 40MHz CA CA
Spectral Efficiency
21Mbps / 5MHz 64QAM
28Mbps / 5MHz 2x2 MIMO
42Mbps / 5MHz 2x2 MIMO 64QAM
Tens of networks netw orks deployed or under trial, by Huawei
300Mbps Title / 20MHz
84/168 Mbps / 10/20 MHz
Rela 4x4 MIMO
DC 2x2 MIMO 64QAM
CoMP
OFDM 64QAM 2011 - 2013
4x4 MIMO
OFDM 64QAM Beyond 2013
HSPA+ Evolution, peak rates
168/20MHz 84/10MHz
64QAM
MIMO+16QAM
MIMO+64QAM
DC+16QAM DC+64QAM 63
50%
56 42/5MHz
Mbps/MHz
50%
28/5MHz 21/5MHz
42/10MHz 28/5MHz
DC-HSDPA + 64QAM + MIMO (combinations)
33%
14/5MHz deployment date
HSDPA
2009
2010
HSPA+ 64 QAM HSPA+ MIMO
2011
2013/14 2010
HSPA+ MIMO MIMO+ + HSPA+ 64QAM DC 16 QAM
2010
HSPA+ DC 64 QAM
2012
HSPA+ DC 64QAM +MIMO
MIMO delivers the highest spectral efficiency
HSPA+ MC 64QAM+MIMO 64QAM+MIMO
MIMO: ecosystem status 1Q `10 •R7 MIMO 28 M DL
UE Chipset Plan
1Q `11
R9 DC 64 QAM with MIMO 84 M DL
R8 64 QAM with MIMO 42Mbps
1H ‘11
Commercial
’13-’14
2Q’12?
R10 MC 168 M DL
Industry Picture
HSPA+ Terminal Terminal Ecosystem today 92 devices available commercially by 20
Roadmap
61 devices support 21M, 9 support 28M, 28M, 22 support 42 M
Example: wide MIMO support by QUALCOMM
New UE Category to support DC-HSDPA+MIMO: HSDPA Category
modulation mode
maximum bit rate supported by MAC-ehs (kbps)
Category 25
QPSK, 16QAM
46740
Category 26 Category 27
Category 28
55904 QPSK, 16QAM, 64QAM
70560 84384
Infra ecosystem: Huawei MIMO RF solution makes MIMO more affordable through… RRU is cascaded with CPRI cable. No need additional CPRI and power cable from BBU
RRU
HSPA, Non MIMO site •Classical industry solution requires HW additions BBU •No feeders/antennas change RRU
Only SW upgrade if the radio unit has two Tx chains!
BBU
PA PA
RRU
HSPA+ •64QAM •DC-HSDPA
HSPA Software Upgrade
RRU
HSPA+ 64QAM+MIMO
BBU
Software Upgrade
For same band, software upgrade
For MIMO
For different band, add LTE RRU
LTE
LTE RRU
Smooth introduction of MIMO, and evolution to LTE (same band)
MIMO Delivers the Highest Spectral Efficiency Industry Simulation Result: average sector throughput Mbps �
7
6 �� 16���
�� 64���
����(16���)
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Simulation Condition PA3,Macro Cell, 5users/sector, wrap round, ISD500m
•
, user throughput across the whole cell
• The Simulation result shows that
MIMO will bring more than 16% cell throughput gain compared to 16QAM.
MIMO with 64QAM will bring more than 10% cell throughput gain compared to 64QAM
DC-HSDPA+MIMO Improve the user experience Full buffer service test:
Burst service test:
cell throughput comparison
average user throughput comparison DC -MIMO -MIMO Performa Performa nc e G a in (Bur (Bursst Tr Tra ffic) ,PA3
Gain of DC-MIMO vs DC fullbuffer fullbuffer service, service, 5 us er/cell, 9sites(wrap-round),I 9sites(wrap-round),ISD=500m, SD=500m, PA3 16
) s p b M ( t u p h g u o r h T l l e C
17.5%
8
12.1%
6 4 2
DC -HSDPA -HSDPA +MIM MIM O +64QA M
14
) s p b 12 M ( e t 10 a R t s 8 r u B e 6 g a r e 4 v A
DC -HSDPA -HSDPA +64Q 64Q AM
27%
85%
2 0
0 16QAM DC
DC-M DC-MIIMO
64QAM modulation in DL
0
5
10
15
20
User User Numb er/sec er/sec tor
Traffic model: each user downloads a file of 512kbyte every 5s.
Compared with DC-HSDPA, DC-HSDPA-MIMO improves the system
capacity and enhances the user experience. DC-MIMO is much less sensitive than DC-64 to the cell load
MIMO deployment: Solutions to the problem of co-existence MIMO working mode and problem statement: STTD (Spatial STTD (Spatial Time Transmit Diversity) -EQ receiver would would fall back to rake receiver due to STTD and that would degrade degrade the legacy terminal. terminal. -Performance and average 30% throughput loss was observed at near and medium point
PSP Prima Primary ry and Second Secondary ary Pilot ere are wo pro ems w PA1
PA2
PCPICH
SCPICH
mo e w c were a
Leads to low amplifier efficiency Solution: VAM (Virtual Antenna Mapping)
CCH Not Used
HSDPA
Two PAs have the same power, po wer, and the MIMO power configuration in each PA need to be balanced.
resse .
problems
Secondary pilot is seen as interference by legacy HSPA HSPA devices, leading to a decline in performance. Solution: proprietary Algorithms have been developed and verified in the ,
Big cell capacity gains were demonstrated •Impact on legacy HSDPA reduced to -30%
~ 16%
Huawei
< -5%
~ 25%
Gain
> 25% (1)
>9% (2)
5,00 16���(���10)
64 � � �
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1. Improve 25%+ Data Rate for Legacy Subscribers Subscribers Compared to Industry Level. Level. 2. 9%+ Cell Throughput Gain Achievable Compared to Industry Level.
Evolution and Deployment strategy Scenario 1.
MIMO MIMO could could be depl deploye oyed d for for any any HSDPA HSDPA scenario. MIMO performs better in Dense urban
and urban area (higher scattering, multipath) 2.
The better the CQI is, the better MIMO per ormance ormance,, an
ec n que s go goo o
or
lower mobility users 3.
For operat operators ors who have have only one carrier, carrier, MIMO is the unique choice for evolution.
4.
More than 1 carrier carrier:: deploy MIMO with w ith HSDPA on only F1 in the early phase, and SW configure MIMO on the second carrier when capacity needs it.
RF Power configuration eep t e same tota output power: .g.: ex st ng network 20W 2*10W 2*10W after after MIMO upgrade; For new build network: netw ork: Keep the same total output power of MIMO and Non-MIMO carriers. carriers. 2*20w is recommended as better coverage requirement.
Summary MIMO’s role in MBB evolution
MIMO is a necessary and cost effective step in the evolution of HSPA, as well as of LTE
The industry chain of MIMO is mature (2x2MIMO terminals are already in commercial use), with a clear evolution path (QCT and other big players support it)
Wide experience of commercial trials and deployments makes Huawei the leader in HSPA+ (and MIMO).
Performance
25% cell throughput gain compared to 16QAM, 15% compared to 64QAM.
50% average single user’s throughput gain with 16QAM and 20% with 64QAM.
100% Single user peak rate gain compared to 16QAM, 33.3% compared to 64QAM.
With latest Huawei MIMO and HSDPA co-carrier co-carri er solution, No service impact is perceived from HSDPA legacy users
Major MIMO deployment issues are solved
Legacy 1Tx RF cascade and new 2Tx RF cost effective solution
New algorithms have been proved for solving MIMO+HSDPA co-carrier
MIMO is ready to go!
Thank you www.huawei.com
Copyright©2008 Huawei Technologies Technologies Co., Ltd. All Rights Reserved. The information contained in this document is for reference purpose only, and is subject to change or withdrawal according to specific customer requirements and conditions.
