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Mobile Broadband Solution
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
3
Rapid increase of 3G subscribers
Compelling multimedia applications
Increasing shipment of Smart phones
Wireless network replace fixed network
By 2014, monthly worldwide mobile data traffic will exceed the total for all of 2008*
Source: ABI Research, Apr’09
160200
million
590885
million
operator No. of users operator No. of users
Source: Wireless IntelligenceGSMA&CDG, Nov. 2009
2005 2009
Mobile Data Traffic vs. Mobile Data Subs
Source: TeliaSonera
2009
Global Mobile Data Traffic Growth
UMTS/HSPA is the First Choice of Mobile Operator
Mobile CarrierMobile Carrier NetworkNetwork
AT&T GSM/UMTS/HSPA
NTT DoCoMo PDC/UMTS/HSPA
Verizon CDMA1x/EV-DO/WiMax
T-Mobile GSM/UMTS/HSPA
Telefonica GSM/UMTS/HSPA
FT GSM/UMTS/HSPA
Vodafone GSM/UMTS/HSPA
TIM GSM/UMTS/HSPA
Sprint Nextel CDMA1x/EV-DO/WiMax
BT GSM/UMTS/HSPA
HSPA is the first choice for mobile data services.
8 operators of Global TOP10 select UMTS/HSPA
as its 3G mobile data network
4
HSPA Network Growth Worldwide
No. of HSPA users
No. of HSPA users
HSPA subscriptions
worldwide 217 million: Q4 09
The number of users in
Q4 2009 is treble the number
in Q4 2008
HSPA UE: 2137, improved
67% in one year
364 HSPA networks
in global
315 commercial
HSPA networks
97% of UMTS
networks support HSPA
No. of HSPA networks
No. of HSPA networks
5
HSPA/HSPA+ Dominates the Wireless Broadband
HSPA+ era is coming
The world’s first HSPA+ system was
launched by Telstra in Australia on February
23rd, 2009.
Wireless broadband customers worldwide, by technology, 2008–2015
HSPA/HSPA+ dominates in broadband market
41 HSPA+ Networks Launched in 26 Countries
32 HSPA+ Devices Launched by 11 Suppliers
6
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
UMTS Technology Evolution
8
HSPA Key Technologies
HSPA+ Key Technologies
UMTS TechnologiesUMTS Technologies
New Physical Channel
HS-PDSCH (DL)
HS-SCCH (DL)
HS-DPCCH (UL)
HSDPA - High Speed Downlink Packet Access
10
HSDPA Key Technologies
AMC Fast Scheduling
16QAMFixed SF16, 2ms short frame
Shared channelHARQ
1 2
3 4
5 6
① Adopt 2ms short frame, fixed SF, TDM
and CDM between the users at the
same time
② Introduce 16QAM high order
modulation, providing higher
modulation efficiency
③ AMC makes the data transport well
adaptive to the changes of radio
channels
④ Fast scheduling makes multi-user
share the radio resource.
⑤ HARQ quickly adjust the channel rate
according to the status of radio link
and achieve the error correction and
retransmission of the data.
⑥ Shared channel makes the number of
access users not limited by the code
resources.
11
New Physical Channel
E-DPDCH (UL)
E-DPCCH (UL)
E-AGCH (DL)
E-RGCH (DL)
E-HICH(DL)
HSUPA - High Speed Uplink Packet Access
12
Multi-Code Transmission
3
E-DPDCH
E-DPDCHE-DPDCH
E-DPDCH
E-DPDCH
Uplink HARQ
4
Packets Transmission
ACK/NACK
Retransmission
Correctly received packet
RNC
2ms Radio frame
2
Node B Fast Scheduling
1
HSUPA Key Technologies
NodeB
13
HSPA Key Technologies
HSPA+ Key Technologies
UMTS TechnologiesUMTS Technologies
5MHz Band Width
HSPA+ Contribution to Higher Data Throughput
Do
wn
link
Up
link
14.4Mbps 15 Codes
21.6Mbps 28.8Mbps
64QAM2*2 MIMOor DC
43.2Mbps
64QAM
R5
R7
R8
R5
384Kbps
1.9Mbps
5.76MbpsR6
11.52Mbps
16QAM
R7
Higher data throughput
5MHz Band Width
Lower Cost per bit
86 Mbps
4*4 MIMO
2*2 MIMOor DC
15
DB/MC HSDPADC-HSUPA
Dual-Cell HSDPA
Enhanced ULCELL_FACH
HSPA+ Key Technologies Map
HS-SCCHLess
L2 Enhancement (DL)
UL DTX
64QAM
EnhancedF-DPCH
HSDPA
HSUPA
DPCCHSlot format 4
CS over HSPA
DC-HSDPA+MIMO
L2 Enhancement (UL)
MIMO+64QAM
R7 R8 R9
MIMO Enhanced DL CELL_FACH
DL-DRX
R5 R6
UL 16QAM
EnhancedUE DRX
16
High Order Modulation: DL 64QAM for HSDPA
64QAM: the new modulation mode
adopted in 3GPP R7
one symbol denotes 6bit, 50%
modulation efficiency is improved
compared with 16QAM
The peak rate for single user is
21.6Mbps, which improves 50% than
R5 HS-DSCH
17
Average Cell Throughput(Mbps)
90% UE Throughput(Mbps)
16QAM 5.8271 0.77473
64QAM 6.4553 0.90954
Compared with 16QAM, the cell throughput of macro cell DL 64QAM has been improved to 15%Compared with 16QAM, the cell throughput of macro cell DL 64QAM has been improved to 15%
High Order Modulation: UL 16QAM in HSUPA
Applicable for E-DPDCH
Reduce delay, improve UL capacity
11.52Mbps at most
18
Average Cell Throughput(Mbps)
Average Ue Throughput(Mbps)
90% percentile Ue Throughput(Mbps)
HSUPA 10ms
1.3993 1.3993 1.7031
HSUPA 2ms
3.051 3.051 3.8066
HSUPA 16QAM
4.3587 4.3587 6.5066
Cell throughput has been improved by 38%Cell throughput has been improved by 38%
MIMO Performance Analysis
Average Cell throughput
Average cell freq efficiency
Average UE throughput
95% central throughput
50% throughput
5% edge throughput
1x2 5.6343 1.1269 0.5634 2.0942 0.2854 0.027
2x2MIMO 8.2927 1.6585 0.8293 3.2221 0.3108 0.0301
19
Cell throughput has been improved by 47%Cell throughput has been improved by 47%
DC HSDPA Performance
20
Cell 1
Cell 2
Primary Serve Cell
Secondary Serve Cell
As normal cells
Only HS-PDSCH andHS-SCCH
As normal cells
As normal cells
Dual Carrier Enabled UE Legacy UE
HSDPA preferred cell as Primary Cell
After introducing Dual-Cell HSDPA, UE peak bit rate in downlink for a single UE
can reach 28.8Mbps with 16QAM activated and 43.2Mbps with 64QAM
activated.
21
微蜂窝下不同UE类型条件下的扇区吞吐率
Cell throughput of different category UE in macro cell
Networ
k Type
UE
Category
12 6 8 10
2*SC
Throughput
(Mbps)
4.704 7.558 7.961 7.972
DC 4.821 8.014 8.4614 8.4668
DC HSDPA is Recommended
DC HSDPA throughput per cell
HSDPA cell throughput
>
DC HSDPA also double DL throughput but need
lower wireless environment than MIMO
When MIMO/64QAM can’t be triggered, DC
HSDPA still work
DC HSDPA is suitable to be deployed in the
whole network if the operator have enough
frequency resource (10MHz)
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
Network Coverage Strategy
Middle Level UserMiddle Level User High Level UserHigh Level UserLow Level UserLow Level User
GSMGSM HSPAHSPA HSPA+HSPA+
Hot spotHot spot
HSPA+: Mobile broadbandHSPA+: Mobile broadband
Urban AreaUrban Area
UMTS/HSPA: Video call, Mobile video conferenceUMTS/HSPA: Video call, Mobile video conference
Complete CoverageComplete Coverage
GSM/GPRS: Voice/Low speed data services
HSPA+ should be deployed in hot spot area in order to enhance brand.
For all the sites, hardware need be ready for HSPA+
23
HSPA Brings Challenge for Transmission
TMTM TMTM
4 E1 is not enough4 E1 is not enough
One cell will reach 14.4Mbps for HSDPA, less
than 6 E1 is not enough for HSPA
To meet HSDPA/HSUPA, one S1/1/1 site should
support at least 8 E1 interface.
At least 8 E1 interface should be hardware ready for one site.
RNC
24
IP Transmission Is The Trend
FE and GE interface hardware should be ready for NodeB.
IP transmission has lower cost and easier expansion than E1 transmission
E1 transmission is not enough when large scale application of HSPA+ and LTE is coming
25
HSPA Requires Large Traffic Processing Capacity
43.2Mbps
17.2 Mbps
0
20
40
60
HSPA Throughput
HSPA Throughput Capability per Site
HSDPA
HSUPAKey Index Traffic Throughput
HSDPA Throughput 14.4Mbps per CS
HSUPA Throughput 5.76Mbps per CS
HSPA+ Throughput 21Mbps
14.4M HSDPA5.76M HSUPA
14.4M HSDPA5.76M HSUPA
14.4M HSDPA5.76M HSUPA
Only One BP BoardS111 HSPA Configuration
Easy Expansion by BP
BP Board
Baseband processing board must be large capacity and easy for expansion
Traffic and capacity increase
26
Traffic Throughput
CE Number
DL UL
Traffic baseband board Resource
HSPA Traffic Evaluation On Throughput
CE efficiency is different for all the venders
Softer Handover CE consumption, different venders have different strategy.
Data throughput Capacity is the most important for HSPA service
Data is based on Mbps, and data throughput should be calculated by Mbps.
The traffic evaluation should be scaled by throughput, not only by CE number.
Traffic Throughput
CE Number
27
Challenge of Traffic Increase and Capacity Expansion
The network must be easy expansion for traffic and capacity
Each operator has at least 2 or 3 carriers, carrier expansion should be considered from the first phase.
Hardware expansion must be avoided in the future expansion.
28
Large Capacity PA is Suggested
4 Carriers must be supported in RU and RRU, there must be only software upgrade
when expansion to S4/4/4.
20MHz
5MHz
With traffic increase, S1/1/1 will be expansion to S3/3/3 and even S4/4/4.
Multi-carrier PA should be provided, hardware should be ready for 4 carriers thus
there is only software configuration.
29
30
3 Carriers —— 60W Power Needed
At least 60W TOC output cabinet must be provided. Otherwise RU hardware will
be added when capacity expansion.
S444, 20W@Carrier
1C
2C
3C
4C
Large Output Power is Suggested
20W Power for one carrier is basic 4 Carriers —— 80W Power Needed
30
HSPA+ era is coming
46 operators in 33 countries have committed to HSPA+ network deploymnets
In order to enhance brand, HSPA+ 64QAM should be launched in hotspot .
HSPA/HSPA+ Suggestion Summary
HSPA+ 64QAM should be launched in hot spot
HSPA+ should be launched phase by phase
64 QAM should be launched ASAP,
Seldom MIMO terminals,MIMO is recommended to be considered in 2012;
Dual-Cell is a good choice, which should be planed for future deployment;
Other requirement for HSPA/HSPA+
IP transmission is a good choice;
At least 6-8 E1 interface for each site hardware configuration;
Pay more attention to data throughput processing capacity of base band.
4 Carriers and 60W output power should be hardware ready for future capacity expansion.
31
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
Mobile Broadband Overview
UMTS Key Technologies
UMTS Network Challenge and Suggestion
ZTE UMTS Experience
33
ZTE HSPA+ Application Cases
34
HK CSL HSPA+ & LTE network
Mar, 2009, CSL launched
the first HSPA+ network based
on SDR system
Full network coverage
peak 21Mbps
Average 18Mbps in more than 70% area
GSM/WCDMA/HSPA+ LTE Evolution
Future smooth transformation to LTE
LTE mobility
MIMO/64QAM
SON
Multi-Users
SDR platform
+
8 June 2010, ZTE & CSL have been awarded the LTE infrastructure innovation award as part of the Global Telecoms Business Innovation Award 2010
Average:41.6Mbps
DC-HSDPA trial
Average rate: 41.6Mbps
Telkomsel HSPA+ 64QAM Live Network
Manado, the capital of North Sulawesi province of Indonesia & the holder city of WOC (World Ocean
Conference) 2009, most of population here are Christian.
Known as the plentiful ocean species & diving resort, thousands of researchers & visitors were
attracted here to experience another amazing life.
On 16th Dec of 2009, ZTE passed HSPA+ 21Mbps test successfully under real condition & launched
service at Manado for Telkomsel, top operator in Indonesia & Asia-Pacific before Christmas.
35
HSPA+ Commercial Network Test Condition
HSPA+ 21Mbps test, done on 12th~16th Dec, at Manado Swiss Bell Hotel Test completed under two conditions according to SGSN upgrade process
Condition 1:Push data from RNC to UE directly without SGSN
MGW
SGSN GGSN
HLR
Internet
RNC
Node BLaptop +
Data Card +USIM
MGW
SGSN GGSN
HLR
Internet
RNC
Node BLaptop +
Data Card +USIM
Not ready for 21Mbps
Ready for 21Mbps
Test Location: Swiss Bell Hotel
Test Time: 12th Dec & 16th Dec
Condition 2:Download data from internet to UE through SGSN & GGSN
36
Test Result Showing —— Condition 1
Push data from RNC to UE, data rate can be up to Max.21Mbps & Ave.19Mbps
37
Test Result Showing —— Condition 2
Download Kung Fu Panda from internet, data rate can be up to Max.19Mbps & Ave.16Mbps
38
39
Romania Cosmote: HSPA+ Upgrade in One Month
HSPA+ solution based on SDR, only software upgrade
Complete HSPA+ network upgrade in one month
All IP networking, supports 80Mbps throughput per site
Supporting DL 21.6Mbps, being treble the cell DL
throughput before upgrade
BB: SW upgrade
ZAPP HSPA HSPA+ (64QAM)
Unchanged
Unchanged
40
MIMO Test in Reliance
2*2MIMO HSPA+
Test Terminal:
27.79Mbps
Peak Rate
MIMO Test:Completed MIMO IOT with QualcommCompleted MIMO system equipment test in India Reliance