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8/11/2019 4g Pa Prfddgkjhk,Hjhjhkljljjjjjjjjjjjjjjjjjjjj

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Presented By

Aniket NaugariyaROLL NO.

1130921011

A Seminar Presentation on

4G Wireless Technology

SUBMITTED TO:-

PRIYANK AGRAWAL


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Contents

4G Introduction

Features

History

A view on 4G LTE

view

Security in 4G

Security Needs in 4G Security Measures in 4G

Conclusion

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4G


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What is 4G?

4G is a IP-based heterogeneousnetwork

It allows users to access data

independently from an in-use device andwill be secure and reliable, allowing foruse of the best connection in theimmediate vicinity

It provides seamless roaming

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The ten

views of 4G*

*source: CSTL 4G white paper

Wireles

swireline

Newnetwork

Strictgenerati

on

New airinterface

Technologytrends

Costreduction

Higher

bitrates

Userservices

Service

providers

WirelessInterne

t

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Requirements:Increased Peak

data rates

Downlink peak data rate of 100 Mb/s within a 20 MHz bandwidth.

Uplink peak data rate of 50 Mb/s within a 20MHz bandwidth

Capacity Up to 200 active users in a cell (5 MHz)

Spectrumflexibility

Scalable bandwidth up to 20 MHz, covering 1.25 MHz, 1.6MHz, 2.5 MHz, 5MHz, 10 MHz, 15 MHz and 20 MHz

Improved

spectrumefficiency

An increase in spectral efficiency of two to four times that of HSPA Release 6

ReducedLatency

Reduced latency to 10 msec round-trip time between user equipment and thebase station and to less than 100 msec transition time from inactive to active.Less than 5 ms user-plane latency.

Mobility

Optimized for 0 ~ 15 km/h.15 ~ 120 km/h supported with high performance.Supported up to 350km/h or even up to 500 km/h

Coverage: Performance should be met for 5 km cells with slight degradation for 30 kmcells. Up to 100 km cells not precluded.

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HISTORY


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Appendix : Cellular Standards

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A view on 4G


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LTE

LTE, or Long Term Evolution, is a standard used in 4G LTE is a new radio access technology (called E-UTRAN)

which uses Orthogonal Frequency Division Multiple Access(OFDMA) on the downlink and Single Carrier FrequencyDivision Multiple Access (SC-FDMA) on the uplink

LTE is part of the GSM evolutionary path beyond 3G,following EDGE, UMTS/WCDMA, and HSPA (HSDPA andHSUPA combined)

LTE assumes a full Internet Protocol (IP) networkarchitecture and is designed to support voice in the packet

domain

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Domain of 4G extends beyond 1G, 2G, and 3G

> 2 Mbps in a wide-area mobile system (> 20 Mbps peak)

Could coexist with 2G and 3G

4G is not necessarily defined by the bit rate, but by a significant advance insystem capability beyond what can be achieved with 3G

Data Rate

Coverage

Area,Mobility

Macro cell,High Mobility

Microcell,

Limited Mobility

Fixed Access

64kbps 2Mbps 200Mbps

P-MP (LMDS)Milli-wave LAN

2G

WLAN

4G3G

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Security in 4G


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4G Architecture Implications onSecurity:

Flat architecture: RAN protocols terminatein eNB

Interworking with legacy and non-3GPPnetworks

Allowing eNB placement in un-trustedlocations

New business environments with lesstrusted networks involved

Trying to keep security breaches as localas possible

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Security Architecture Necessities:

Extended Authentication and KeyAgreement

More complex key hierarchy

More complex interworking security

Additional security for eNB(compared to

NB/BTS/RNC)

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Possible Threats that are avoided

Spoofing

Eavesdropping

Phishing

SIP registration hijacking

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4G System Research Areas

AdaptiveAntennas forBroadband

BroadbandAir InterfaceResearch

BroadbandImplementations

4G System Design

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4G Air Interface Characteristics

oHigher bit rates than 3G (20 Mbps < peak < 200Mbps)

oHigher spectral efficiency and lower cost per bit

than 3G.oSmaller cells, on average, than 3G.

oHigher frequency band than 3G.

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Conclusion :

4G provide with a very efficient andreliable wireless communication system forseamless roaming over various networkincluding internet which uses IP network.

Security development has no ending;

new threats and attacks shall rise as thestandards and technologies get realized.

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Thank You

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