Jim JohnstonCTO, Communications Convergence ProcessingMindspeed Technologies, Inc.

Evolving the Evolved Packet Core

+

New Networked Applications

Explosive demand for Mobile Broadband=

Innovative New Platforms

Mobility + Content

• High performance graphics processing• Low power, longer battery life• Speedy interactions between core

processor and device RAM• HD video capture and playback• 1080p, 30 frames-per-second video• Dual displays (for video chat)• Vibrant touchscreens• External display drivers (HMDI output)

Powerful Consumer Devices put Processing Horsepower at the Edge of the Network

(photos courtesy of Samsung and Lenovo) Epic 4G smartphone ,Galaxy Tab (Samsung), Skylight Smartbook (Lenovo)

Terabytes Per Month

2009 2010 2011 2012 2013 2014

1,800,000

3,600,000

Source: 2010 Cisco VNI Mobile pictured: Samsung Seek (courtesy of Samsung Mobile)

An Explosion in Mobile Data Traffic

This surge in mobile data and video coincides with:

• A strategic move away from separate (circuit-switched) voice and (packet-switched) data networks

• The migration to 4G LTE networks with an all-IP core

• A move towards heterogeneous networks featuring macrocells, microcells, picocells and femtocells

5

BTS BSCMSC

PA

D/AA/D

Equ.

TDMAModem TRAU

Speech codec

FEC

A-bis: TDM

A: TDM TDM

2G GSM – 1990s

RF

PSTNTime Slots - DSx

eNode B

PA

D/AA/D

Equ. OFDMAModem aGW

FEC

Security IP Packet IP Packet

MAC

MIMO

4G LTE - 2011

QoS

Mobility Management

RF Native IP Packets

Node B

PA

D/AA/D

Equ.

CDMAModem RNC SGSN

Serving GPRSSupport Node

GGSNGateway GPRSSupport Node

FEC

IP Packetsover ATM Cells / TimeSlots

IP Packet3G W-CDMA – 2000s

Media Gateway

Video processing

Speech Codec

Voice band dataQoS

Security

Mobility Mgmt.

MACRF

Mobile Operator Core

Network

Packet Switching

From 2G and 3G to The Evolved Packet Core

Supported Subscribers

1200 400 200 50 10

BusinessPico Femto

Residential

EnterpriseFemto

BusinessMetroBusinessBusiness

Micro

Urban

Macro

Metro High-Density Subs

Network designers will deploy heterogeneous networks featuring ‘small cells’

The Network: Migration to a Distributed Architecture

The Computational Complexities of 4G are Magnified

• Advanced baseband processing techniques

• Adaptive beam forming

• Adaptive modulation

• MIMO antenna systems

• Space Time Coding (STC)

• Digital RF processing

Evolving mobile standards will drive massively higher data rates

Time– Quicker to deploy; limited zoning/permissions– Low site engineering and construction requirements

Cost– Cheaper to deploy and maintain– Lower CapEx– Lower OpEx (primarily due to reduction in lease costs)– More options for cost-effective backhaul

Efficiency– Capacity (lots of it) --- exactly where it is needed– Flexibility in site location– Significant capacity gains are possible for lower TCO

Increased Capacity and Coverage

Pico

Femto

Micro

Why Small Cells?

Processor Complexity in Evolved IP Networks

SoftwareComplexity

lines of code

SiliconComplexity

number of transistors

Dial-Up Modems VoIP 4G Baseband

1995 2005 2010

20million

> 900million

300million

< 3 million

< 10,000

300x

2000x

2 million

Source: Mindspeed Technologies

Next-Generation Base Stations Must Change to Support the (All-IP) Evolved Packet Core

• Must be capable of delivering all standards-based services (at full throughput)

• Low end-to-end latency• Cost-effective implementations• Power efficiency• Multi-RAT (Radio Access Technology) support:

including 2G and 3G• Future-proofed support of evolving requirements• Movement towards ‘small cells’ architecture

(macro-micro-pico-femto)

Video is the Common Driver for User Equipment and Network Upgrades

Smartphones , with 20% market share, are responsible for over 80% of mobile traffic usage.

Almost 66 percent of the world’s mobile data traffic will be Video by 2014.

Source: Informa Telecoms & Media

Source: Cisco Visual Networking Index 2010