Hazim Ahmadi Wireless Network Laboratory Telkom Research & Development Center Teknologi Pita Lebar 4G: LTE di Universitas Gajah Mada 10 Desember 2010
Nov 10, 2014
Hazim AhmadiWireless Network Laboratory
Telkom Research & Development Center
Teknologi Pita Lebar 4G:
LTE
di Universitas Gajah Mada10 Desember 2010
Agenda
Internet and Mobile User
Mobile and Internet growth
Service and Application
Mobile data usage and emergence of new application
4th Generation: Long Term Evolution
Roadmap on 3GGP
Roadmap on 3GPP2
Overview LTE
Trial Result and LTE Video Service
Telkom Group, Huawei; June 2010, Bandung&Jakarta
Hazim Ahmadi/Telkom RDC
Internet and Mobile User
Mobile dan Internet Growth
Hazim Ahmadi/Telkom RDC
Hazim Ahmadi/Telkom RDC
Global ICT Development
Total number of mobile user:
• 2008 : 4,012 billion
• 2009 : 4,652 billion
• 2010 : 5,282 billion*Sumber : http://www.itu.int/
*) Predicted
Indonesia click here
Internet Users
Hazim Ahmadi/Telkom RDC
Wireless Subscriber of Q3 2009
6% 4%
16%
2%
3%
43%
9%
15% 2%
Bakrie Tel. (CDM A) Hutchison (GSM ) Indosat (GSM ) M obile 8 (CDM A) Natrindo (GSM )
Telkomsel (GSM ) Telkom Flexi (CDM A) XL Axiata (GSM ) Others (CDM A)
Operators
2009
(in thousands)
Bakrie Tel. (CDMA) 10,500
Hutchison (GSM) 7,300
Indosat (GSM) 28,700
Mobile 8 (CDMA) 3,400
Natrindo (GSM) 6,000
Telkomsel (GSM) 79,770
Telkom Flexi (CDMA) 15,500
XL Axiata (GSM) 26,600
Others (CDMA)* 3,500
Totally 181,270
• More than 10 operators are competing
• There are about 180 mill out of 240 mill population
• Voice and data services contribute to operators revenue
• Some of them will be consolidating
Service and Application
Mobile data usage and emergence of new application
Hazim Ahmadi/Telkom RDC
Person-to-person communication
Rich voice
Video Telephony
SMS/MMS
http://kurungsiku.web.id/2010/05/16/fitur-baru-skype-group-
video-calling/
Hazim Ahmadi/Telkom RDC
Social Networking
Communities/Blogging
Gaming
Photo/Video Sharing
Hazim Ahmadi/Telkom RDC
Business Service
Mobile Office
High Speed Access
Mobile Conferencing
Hazim Ahmadi/Telkom RDC
Mobile Commerce
Mobile Banking
Bank Transfer
Check balance
Mobile Payment
Ticketing
Vending machine
Mobile Advertising
Hazim Ahmadi/Telkom RDC
The next customer
• Car Monitoring
• Home Security
• Machine to Machine
Comm.
Hazim Ahmadi/Telkom RDC
Tremendous video on Internet will be widely accessed via wireless
broadband network
Hazim Ahmadi/Telkom RDC
Mobile TV
Video on Demand
Music
Content Delivery
Web 2.0
Hazim Ahmadi/ Telkom RDC
Social Networking
Interactive Prosumer
Video sharing
Internet volume of Indonesia
• 2005 ---- 1.4 GB to Internet GW
• 2008 ---- 10 GB to Internet GW
• 2009 ---- 19 GB to Internet GW
Hazim Ahmadi/Telkom RDC
Hazim Ahmadi/Telkom RDC
Broadband = High Way
Bandwidth is never enough
• Mobile Internet access traffic
doubles every 12-18 months– Data card
– Smart phones effect
How to bring them?
Hazim Ahmadi/Telkom RDC
4th Generation: Long Term Evolution
Roadmap on 3GGP
Roadmap on 3GPP2
LTE overview
Hazim Ahmadi/Telkom RDC
Where is the mobile industry growing?
Hazim Ahmadi/Telkom RDC
2G Technology Evolution in 3GPP
GSM
9.6kbps (one timeslot)
GSM Data
Also called CSD
General Packet Radio Services
Data rates up to ~ 115 kbps
Max: 8 timeslots used as any one time
Packet switched; resources not tied up all the time
Contention based. Efficient, but variable delays
GSM / GPRS core network re-used by WCDMA (3G)
Enhanced Data Rates for Global Evolution
Uses 8PSK modulation
3x improvement in data rate on short distances
Can fall back to GMSK for greater distances
Combine with GPRS (EGPRS) ~ 384 kbps
Can also be combined with HSCSD
Hazim Ahmadi/Telkom RDC
3G Technology in 3GPP
UMTS evolved from GSM via
GPRS/EDGE.
Splitting circuit switched network and
packet switched network
Data rates of UMTS are:
Rel.99 : 384 kbps/384 kbps
Rel.5 : 7.2 Mbps/384 kbps (HSDPA)
Rel.6 : 7.2 Mbps/5.8 Mbps
Rel.7 : 21 Mbps (HSPA+)
Hazim Ahmadi/Telkom RDC
2G&3G technology in 3GPP2
IS-95B
IS-95B
Uses multiple code channels
Data rates up to 64kbps
Many operators gone direct to 1xRTT
CDMA
IS-95A
IS-95A
14.4 kbps
Core network
re-used in
CDMA2000
1xRTT
CDMA2000 1xRTT: single carrier RTT
First phase in CDMA2000 evolution
Release 0 - max 153.6 kbps
1xEV-DO
CDMA2000 1xEV-DO: Evolved Data Optimised
Third phase in CDMA2000 evolution
Standardised version of Qualcomm High Data Rate (HDR)
Adds TDMA components beneath code components
Good for highly asymmetric high speed data apps
Speeds to 2Mbps +, classed as a “3G” system
Use new or existing spectrum
1xEV-DVCDMA2000
3xRTT
CDMA2000 1x Evolved DV
Fourth phase in CDMA2000 evolution
Speeds to 9.3 Mbps+
Hazim Ahmadi/Telkom RDC
Between LTE and WiMAX
3GPP LTE 3GPP2 UMB Mobile WiMAX
Channel Bandwidth 1.4, 3, 5, 10, 15 and 20 MHz 1.25, 2.5, 5, 10 and 20 MHz 5, 7, 8.75 and 10 MHz
DL multiple access OFDMA OFDMA OFDMA
UL multiple access SC-FDMA OFDMA and CDMA OFDMA
Duplexing FDD and TDD FDD and TDD TDD
Subcarrier mapping Localized Localized and distributed Localized and distributed
Subcarrier hoping Yes Yes Yes
Data modulation QPSK, 16QAM and 64QAM QPSK, 8PSK, 16QAM, and 64QAM QPSK, 16QAM and 64QAM
Subcarrier spacing 15 KHz 9.6 KHz 10.94 KHz
FFT size (5 MHz) 512 512 512
Channel codingConvolutional coding and turbo
coding
Convolutional coding, turbo coding
and LDPC coding
Convolutional coding and
convolutional turbo coding.
Block turbo coding and LDPC
coding optional
MIMO
Multi-layer precoded spatial
multiplexing space-time/ frequency
block coding, switched transmit
diversity and cyclic delay diversity
Multi-layer precoded spatial
multiplexing, space-time transmit
diversity, spatial division multiple
access and beamforming.
Beamforming, Space-time coding
and spatial multiplexing.
Ups…Sorry. Since there is no
supporter this technology was
halted.
Hazim Ahmadi/Telkom RDC
You decide!
WiMAX?
LTE?
Hazim Ahmadi/Telkom RDC
LTE Architecture
eNB:
•User-plane : radio link cont.,
medium access cont., physical
•Control-plane: radio resources
control termination towards UE
Interface to SGW via S1
MME:
Manages and stores the UE control
plane context, Generates temporary Id
UE authentication, Authorization of TA
Mobility management
P-GW:
IP address allocation, Provide UE QoS
for GBR, Gateway to Internet
S-GW:
Gateway to UE, Anchor for
data bearer when HO, Buffers
data while the MME paging to
UE, Retains a bearer info
when UE in ECM-IDLE
Hazim Ahmadi/Telkom RDC
LTE Latency Performance
Hazim Ahmadi/Telkom RDC
Latency User-plane
Radio access network latency < 5 ms in unloaded condition for small IP
packet
Latency Control-plane
Transition times from idle or dormant states to active state < 100 ms
What is delay? what is latency?
Key Features (1/2)
Multiple access scheme
DL : OFDMA with CP (Cyclic Prefix)
UL : Single Carrier FDMA (SC-FDMA) with CP
Adaptive modulation and coding
DL/UL modulations : QPSK, 16QAM and 64QAM
Convolutional code and Rel-6 turbo code
Advanced MIMO spatial multiplexing techniques
(2 or 4) x (2 or 4) downlink and uplink supported
Multi-user MIMO also supported
Hazim Ahmadi/Telkom RDC
Key Features (2/2)
Hazim Ahmadi/Telkom RDC
Two popular techniques in MIMO wireless systems:
Spatial Diversity: Increased SNR
Receive and transmit diversity mitigates
fading and improves link quality
Spatial Multiplexing: Increased rate
Spatial multiplexing yields substantial
increase spectral efficiency
LTE Data Performances
Downlink
Uplink
Hazim Ahmadi/Telkom RDC
HSDPA (Rel.6) LTE Fulfillment
Spectral efficiency (bps/Hz/s) 0.75 1.84 2.5
Cell edge user throughput(bps/Hz/s)
0.006 0.0148 2.5
Peak bit rate (Mbps) 14.4 144 Target 100 Mbps
HSUPA (Rel.6) LTE Fulfillment
Spectral efficiency (bps/Hz/s) 0.26 0.67 2.6
Cell edge user throughput(bps/Hz/s)
0.006 0.015 2.5
Peak bit rate (Mbps) 5.7 57 Target 50 Mbps
Femtocell (Home eNodeB)
Hazim Ahmadi/Telkom RDC
• Simple, low cost, easy-to-install cellular access point for homes (& offices &
metro areas)
• Delivering fast, reliable service to standard phones over licensed spectrum
• Supported in 3G and next-generation standards by 3GPP, 3GPP2, WiMAX
Forum, Broadband Forum
Spectrum Availability
Hazim Ahmadi/Telkom RDC
Flexible spectrum
Provide spectrum flexibility for operation in differently sized spectrum
FDD and TDD
Supports paired and unpaired spectrum on the same hardware platform
LTE Global Spectrum
Hazim Ahmadi/Telkom RDC
Trial Test Measurement Result
Telkom Group, Huawei; June 2010, Bandung&Jakarta
Hazim Ahmadi/Telkom RDC
LTE : Download data rate test
Hazim Ahmadi/Telkom RDC
LTE : Upload data rate test
Hazim Ahmadi/Telkom RDC
User Equipment
Hazim Ahmadi/Telkom RDC
• Smart handset
• USB dongle
• Embedded in
notebook computer
Service and Application
ALU redefine wireless experience services of LTE
Let me ask you this question: peluang apa
saja yang bisadikembangkan oleh
mahasiswa dan Indonesia?
Hazim Ahmadi/Telkom RDC
Challenges and Opportunities
Challenges and Opportunities
Pemerintah belum menyatakan waktu dan spektrum frekuensi
yang dialokasikan untuk LTE. Indonesia berada di antara
adopsi teknologi WiMAX dan LTE.
Layanan dan aplikasi apa saja yang sesuai dengan pipa yang
begitu besar?
Harapan pengguna, operator dan pemerintah terhadap
teknologi LTE ke depan.
Riset femto cell bagi akademisi di Indonesia
dll
Hazim Ahmadi/Telkom RDC
Thank You
Gracias!
Hazim Ahmadi/Telkom RDC