Long Term Evolution (LTE)By –Abhijit KaulNitin KhannaSahana MallyaVaibhav Malik

Topics

•Introduction by Nitin Khanna

•Technical Architecture by Vaibhav Malik

•Business Case by Abhijit Kaul

•Conclusion by Sahana Mallya

IntroductionWelcome to the world of LTE!

What is LTE?

• LTE is the next generation of Mobile broadband technology

• Data rates of 100 Mbps

• It is the next level after UMTS 3G technology

• Works with IP!

Advantages•Provides low latency

•Higher network throughput

•Increased data transfer speed

•More cost effectiveness

•Improvements over 3G network

LTE v/s Other technologies

2G (14.4 Kbps

)

2.5G (384 Kbps

)

3G (14.4 Mbps

)

LTE (115 Mbps

)

4G (1 Gbps

)

2G to 4G Evolution and data download rates

Technical ArchitectureWhat is an LTE Network made up of?

LTE Technologies

•OFDM (Orthogonal Frequency Division Multiplexing) for downlink

•SC-FDMA (Single Carrier – Frequency Division Multiple Access) for uplink

•MIMO (Multiple Input Multiple Output)

•SAE (System Architecture Evolution)

LTE Architecture

Source: Ericsson (2009)

LTE Network Elements

•Evolved Node B (eNB) Supports air interface Provides radio resource management

functions

• Serving Gateway (SGW) Provides Mobility Responsible for Routing and Forwarding

LTE Network Elements (Continued)•Packet Data Network Gateway (PDN GW)

Provides connectivity to Internet Provides QoS and mobility between 3G and

non-3G networks•Mobility Management Entity (MME)

Manages mobility and provides security Operates in control plane and provides

authentication

Business Case for LTE

• What is the LTE market opportunity and implications for the broader ecosystem, including equipment providers, operators, and device manufacturers?

• What are the revenue incentives and investment implications for operators who adopt LTE?

 

Each segment of the ecosystem has a role to play in LTE’s success

• Demonstrated • Innovative • Focused efforts to • New, innovativepotential through 4G applications that understand & GUI designs to takelab tests and trials take advantage of address end-user advantage of rich

• Possibly, multi- LTE’s bandwidth and requirements multimedia contentlatency among consumers and applicationsstandard basecharacteristics and businessesstations to facilitate • Development of new

migration from and • Rich multimedia • Willingness to take device categoriestransitional content to drive measured risks to (MIDs) to leveragecoexistence of 3G to eyeballs to the monetize 4G LTE beyond the4G handset screen handset

•Dual-mode chips to enable seamless 3G/4G coexistence

•Greater computational power on board

•Improved battery life for media-intensive applications

Source: LTE towards mobile broadband – Altman Vilandrie & company (2009)

ComponentNetwork Content & Content &

DeviceInfrastructure Applications Application

Vendors ProvidersProviders Developers Distributors

Potential Business Impact Potential Impact Rationale

•ARPU Inc. Value

added applications

(Average Revenue per User) Advertising revenues

Broadband device proliferation

•CCPU Dec. All IP Networks

(Cash Cost per User) Backhaul

Migration, multiple networks

•Customer Lifetime Same More devices per user

Non-contract pricing models

•Subscribers Inc. New applicants tap new segments

Greater BW targets performance

•CapEx Dec. Economies of Scale

(Capital Expenditures) All IP-N/w & Spectral Efficiency

Multiple networks in transition

Source: LTE towards mobile broadband – Altman Vilandrie & company (2009)

ConclusionWhat does the future hold for LTE?

LTE Future and Uses

•Mass deployment to begin around 2012

•Devices which are covered under LTE are – Mobile phones, laptops, cameras, camcorders

•Assured interoperability with older wireless technologies such as GSM, WCDMA/HSPA, CDMA, TD-SCDMA

LTE Advanced

•Mobile Communication Standard As a major enhancement of the 3GPP LTE

Standard•Peak data rates of 1 Gbps to meet IMT

Advanced standards for 4G•Ability to leverage advanced topology

heterogenous networks such as Picocells and Femtocells

•Improves capacity and coverage and provides large bandwidth upto 100 MHz of spectrum

Conclusion

•We discussed the topics –

What is LTE?

Architecture of LTE Networks

Market growth and evolution of LTE

Future of LTE and LTE Advanced

Thank You!We’d like to answer any questions that you have…

Sources

•http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/3g-lte-basics.php

•http://tech.saroscorner.com/2009/10/are-you-looking-for-long-term-evolution.html

•http://www.ericsson.com/ericsson/corpinfo/publications/review/2007_03/files/5_LTE_SAE.pdf