HetNet: Small Cells, Multi-mode & LTE-A

Nitin Tomar

Product Line Manager

2 Radisys Corporation Confidential

At a Glance

Embedded

Wireless

Infrastructure

Solutions

Wireless Software

Professional

Services

COTS Platforms Media Server / MRF

Single Solutions Source Worldwide Customer Base

Embedded Wireless Infrastructure Solutions

3 Radisys Corporation Confidential

Small Cell Solutions

LTE & 3G Macro & Small Cell SW RRM, SON, OA&M & Protocols

Silicon Integration

COTS SEG Solution

Carrier-Grade Turnkey SEG

Flexible Deployment Options

Small Cell Gateways

ATCA Systems

Optimized Trillium SW

Complete Product Portfolio Customized, Optimized & Deployed with Radisys Services

+

Small Cell

IP

IP

Backhaul

Small Cell GW

Carrier

Wireless Core

Network SEG

4 Radisys Corporation Confidential

Data Remains The Growth Engine

Capacity Mind The Gap

Text

Traffic Doubling every 12 months

Video = Operators’ Albatross

Increase ARPU

Lower Cost per Bit

Source: Cisco VNI Source: Heavy Reading

Revenues

Traffic

Revenues &

Traffic Gap

Widening

Revenue vs. Traffic Growth

Voice Era

Data Era

By 2016 Data increase will be 30x but Revenue will be 2x*

* Source = Maravedis-Rethink 2012

5 Radisys Corporation Confidential

Monetization Conundrum

Increase Revenue

High ARPU

Increased Cost

Lost Revenue

Capacity

Coverage

Churn

Small Cells

New Spectrum

LTE, LTE-A

Capex

WiFi

Charging

New Apps

*New Spectrum & upgrading air interface = 40% of capacity needs in 2016

Rest will have to come from new approach to RAN planning and data delivery

* Source = Maravedis-Rethink 2012

6 Radisys Corporation Confidential

Over the next three years which

sources of disruption will have

the greatest impact on mobile

operators?

SENZA

CONSULTING

7 Radisys Corporation Confidential

The Small Cell Army is Coming

80% Operators See

Small Cells Driving Meaningful

Impact on Networks

The Time is Now:

95% Seeing Small Cells

Within Two Years

For Full Report Go To

www.radisys.com

HetNets

8 Radisys Corporation Confidential

Age of HetNets

Capacity

Dense Urban Urban Suburban Rural

Broadband Proliferation High Low

GSM / GPRS / EDGE Networks, 900MHz / 1800MHz

3G / HSPA+ Networks, 2.1GHz

Multi-Mode

(LTE-TDD

2.6GHz / 3G

2.1GHz)

LTE-TDD

Femto

2.6GHz LTE-TDD

Femto

2.6GHz

LTE-TDD /

Femto

2.6GHz

Coverage

Nationwide

Network

Demand-based

Capacity &

Coverage

LTE-FDD Networks, 700MHz

9 Radisys Corporation Confidential

Managing HetNets What, Where, How?

Technologies

Revenue

HetNet

Disparate

Ecosystem

Higher Capacity

Deeper Coverage

Lower Churn

SON

LTE-A

Small

Cells WiFi

LTE

Tackling

Data Deluge

IOT $

3G

Hot

Spots

TDD

Logistics Security

10 Radisys Corporation Confidential

Consolidated Air Interfaces Where, When & How to Multi-Mode

Core Network Multi-Mode

Small Cell

Small Cell Controller

3G Core

SEG HNB GW

Iuh

SEG TTG

EPC

Iu

S1

Gn’ / Wm

SEG HeNB GW

Wu

S1

Does Multi-Mode

Always Make Sense?

What Combination

for Which Scenarios?

Technical & Cost

Solutions?

11 Radisys Corporation Confidential

Bandwidth Management Where in the Network?

GGSN

AAA

WiFi

AP

TTG/PDG

Internet

P-GWY S-GWY

SGSN

HNB HNB-GW

HeNB-GW

Iu-h

SeGwy

HeNB

S1

PCRF

ANDSF

A. Client B. Access C. Edge

Mobile Core

ePDG

SWu

Ecosystems need to work together: Handsets, Access & Telecom

12 Radisys Corporation Confidential

Multi-Mode: Small Cell + WiFi Integration With Bandwidth Management

Multi-Access-Platform

DPI

Local Policy

Server

EPC /

Mobile

CN

Proxy

Lawful

Intercept

ANQP

Server

SeGW

Provisioning

Client

Provisioning

Proxy

IFOM

EPC / MCN

INTERNET

WiFi

AP

HNB

eNB

Application

Servers

Key Features

• IP Flow Segregation (different flows on different networks)

• IP Flow Mobility (moving an IP flow across licensed spectrum and WiFi networks)

• Bandwidth Aggregation across multiple networks

• SIPTO, Legal Intercept

HeNB

GW SGW

SGSN

EPC /

Mobile CN

Proxy HNB

GW

GGSN /

PDN

3G

WiFi

LTE

+

13 Radisys Corporation Confidential

LTE-Advanced True 4G

LTE-A

LTE

HSPA+

WCDMA

EDGE

GPRS

GSM

2G 2.5G 3G / IMT-2000 3.5G 4G IMT-Advanced

3GPP Standards Progression LTE-Advanced Brings:

Carrier Aggregation

Relay

SON / eICIC

CoMP

Cell Edge Performance

Peak 1Gbps Throughput

14 Radisys Corporation Confidential

Relay Node

LTE Relay Node (RN)

• Over-the-air (OTA) backhaul

• Coverage

• Cell-edge throughput

Macro

‘Donor eNB’ Relay (RN)

Wired Backhaul

Dense Urban Metro-Femto with

OTA backhaul

15 Radisys Corporation Confidential

Carrier Aggregation

Aggregate multiple carriers

Contiguous & non-contiguous

Transmission BW up to 100MHz

Peak data rate 1Gbps

Primary & Secondary Cells

3G

5MHz LTE

20MHz

LTE-A

20MHz

LTE-A

20MHz …

Small Cells serving as

Secondary Cells for CA

16 Radisys Corporation Confidential

SON (Self Organizing Networks)

Centralised

• SON solutions where SON algorithms are executed in a centralized entity – say, OAM

• In such solutions SON functionality resides in a small number of locations

• More control for operator (less scalable)

Distributed

• SON solutions where SON algorithms are executed at network element (eNB / HeNB)

• In such solutions SON functionality resides in many locations

• Less control for operator (most scalable)

Hybrid

• SON solutions where some of the SON algorithms are executed in the OAM system

while others are executed at the network element level

• Best option, most suited for adhoc networks (for femto / small cells)

• Operator can “move” to Distributed option as and when they have more confidence on

multi-vendor SON algorithms

17 Radisys Corporation Confidential

HetNet : Impact on Ecosystem

Portfolio of Products

• Small to Macro

Requirements Evolving – Flexibility A Must

• Customizable to meet operator use case

SON & IOT Key

• Must enable macro to small cell coordination

Wifi + Licensed Integration

• Seamless, coordinated, optimized

Cost & Performance Table Stakes

• 3G HSPA+, LTE & Multi-Mode

18 Radisys Corporation Confidential

Evolving Business Models

Ecosystem driving innovation on new business models

1. Managed services - maintain hetnet’s network.

2. RAN Sharing / Backhaul sharing

3. SaaS - Small cells As A Service

4. New Charging and Policy mechanisms

• Application specific offload

• Rent Small Cell Capacity

• Innovation in Apps by developers

• Policy Enforcement

Revenue Opportunities

19 Radisys Corporation Confidential

60+ Small cells Wins!

Embedded

Wireless

Infrastructure

Solutions

Summary

Next Generation RAN = HetNet

• HetNet will tackle data tsunami

• Small Cells for capacity & coverage

Challenges & Opportunities

• Managing HetNets – Bandwidth, SON, LTE-A

• Ecosystem, Business Models

Up Next: LTE-Advanced

• CA & Relay leveraging Small Cells

• Standards delivering needed features