Just Fact: Using 4G mobile and fixed services on a dual mode WiMAX/LTE network

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Mark Altshuller CTO - Telrad Networks

November 14, 2013

Just the facts… Using 4G mobile and fixed services on a dual mode WiMAX/LTE network

AfricaCom 2013 - LTE Masterclass

• About Telrad

• LTE Industry Trends

• LTE Ecosystem Evolution and Device Availability

• Mobile vs. Fixed Services

• WiMAX to TD-LTE Transition Roadmap

• Fixed and Mobile Convergence

• Telrad Dual Mode WiMAX & LTE Transition

2 Agenda

Who is Telrad? 3

• We are a global provider of end-to-end 4G wireless solutions

Industry pioneer since 1951, advanced R&D team

Serves operators and ISPs worldwide

Developing next-generation WiMAX & LTE solutions

Over 280 4G deployments in 150 countries

• Recently acquired Alvarion BWA division

Product Portfolio, IP, Production, know-how – NOW TELRAD

About 1B$ WiMAX Installed base – NOW TELRAD

Alvarion BWA personnel: R&D, Sales, Operation – NOW TELRAD

Telrad has very strong financial backing with Fortissimo

Telrad 4G Portfolio 4

Core Network

EPC, ASN-GW & AAA

Star-Suite NMS

RAN (Radio Access Network )

BreezeCOMPACT Family

BreezeMAX® 4Motion® Family

End User Devices

IP Network

BreezeCOMPACT Family

Optimized for diverse indoor and outdoor deployment scenarios – on target to achieve maximum coverage & capacity

Small form factor enabling LTE-Advanced capabilities; green footprint without sacrificing performance

Cost-efficient installation and power usage translates to big value for budget-aware environments

Macro base station performance in a “small cell” form factor

…the right choice for now and for the future

5

LTE Industry Trends

Wireless Technology Evolution for sub-6 GHz 7

<2 GHz

<6 GHz

700, 800, 900

1800, 1900

2100

2300, 2500

3500, 3600

4900, 5200, 5800

FDD 1st N/AMPS

80s 90s 00s 10s >13

FDD - 2nd TDMA/GSM

FDD – 3rd CDMA/UMTS/

HSPA

FDD – 4th LTE

Prop./ WLAN/ 802.11

Prop./ WLAN/ 802.11

FDD/TDD Prop./ pre-

WIMAX

TDD WIMAX 802.16d-->e

TDD – 4th LTE

WIMAX and TD-LTE Bands

• TD-LTE is overlapping current WIMAX bands Conclusion 1: TD-LTE will address various applications (not just cellular)

Conclusion 2: Additional spectrum will be used as offload for sub-2 GHz

Conclusion 3: Existing WiMAX networks will invest in transition to TD-LTE

8

700MHZ – Total available TDD spectrum used by WIMAX

Why TD vs. FD?

Capability FDD TDD

Traffic pattern (UL & DL) Symmetric Asymmetric (per TDD split)

Frequency allocation and

limitations

Requires paired frequency and guard

band between DL & UL for full isolation

(>100 db)

May use continuous spectrum (no

guard band required) if the

neighboring systems are

synchronized. More flexible spectrum

allocation.

LTE throughput (channel: 20Mhz)

(for UE: 1Tx X 2Rx) for best

conditions

(considered as theoretical)

For 20+20, Total of 40MHz

DL: 120Mbps,

UL: 50Mbps

Total of 20Mhz

DL: 104Mbps,

UL: 23Mbps

Spectral efficiency

(spectrum utilization) ~4.2 b/s/Hz ~6.4 b/s/Hz

Channel estimation (important for

open loop radio capabilities, e.g.

diversity, beam forming)

Low channel correlation, since running

on different frequencies

High channel correlation, since

running on the same frequency

9

LTE Ecosystem Evolution and Device Availability

LTE Ecosystem & Device Availability 11

• Evolution is driven by the end device ecosystem

• Manufacturers focus on multimode support on single platform 2G/3G & LTE

• Many CPE manufacturers developing variety devices for LTE

USB dongles, desktop CPEs, outdoor CPEs, portable LTE/WiFi routers, etc.

Majority of manufacturers originally produced similar CPE for WiMAX

• First LTE adopters are MNOs

Verizon and AT&T in the US, KDDI and SoftBank in Japan

• All utilizing FDD spectrum

Soft Bank recently launched the first large-scale LTE TDD network

• Initial LTE ecosystem focused exclusively on LTE FDD mode, but shifting

• LTE TDD (also called TD-LTE) mass market expected to flourish

LTE Ecosystem & Device Availability 12

• Mid-2013, TD-LTE appeared in market

First in 2.x GHz (band 40 and 41) and recently in 3.5 GHz (band 42 and 43)

• Leading vendors for TD-LTE CPEs include Gemtek, Green Packet, Zyxel & Huawei

• Today’s TD-LTE CPEs are purely 3GPP-compliant – mobile focused

Lack BWA fixed applications capabilities!

• Operators using WiMAX for fixed applications limited to use LTE CPEs for equivalent service

• Reality for BWA market

LTE still new, the LTE CPE prices 20% to 50% higher than WiMAX

WiMAX industry is “royalty free”, while 3GPP/LTE has royalty cost- about 10% of the market price

• Expected coming-years trends in TD-LTE

In 2-3 years fixed CPE prices will reduce once volumes cross 10 million per year threshold

In next 5 years, 3.x GHz spectrum will be used for sub-2 GHz band offload

Speculating - big operators and chipset vendors will support TD-LTE for 3.x GHz

Mobile LTE Adoption & Challenges

• LTE networks currently support data services only

No clear business model for mobile data services

Voice and SMS still running on 2G/3G

• Slowing down justification for LTE investment

• 3G network investments are much higher than LTE

• LTE band spread complicates global roaming adoption

• Technology is still not polished enough for mass service

3GPP continues protocol improvements

14 Challenges for LTE adoption

• Majority of Mobile Network Operators revenues still from voice & SMS

• 2G and 3G - voice runs over CS (Circuit Switch) domain – roaming well developed

• LTE - uses IP infrastructure for voice and SMS

• VoLTE (Voice over LTE) based on Internet Multi-media System

• VoLTE framework, roaming model and interworking with current CS not finalized

• Current LTE devices (ie: iPhone 5, Samsung Galaxy) do not support VoLTE

• VoLTE will consume more spectrum for typical voice call vs 2G/3G

15 Voice and SMS

Global Roaming

• Lack of international roaming issue for LTE adoption

• Results from wide variety of spectrum bands supported by LTE

2G/3G – total 5 bands used by most (700, 900, 1800, 1900, 2100)

3GPP defined 44 LTE bands

• Mobile devices need multi-technology platforms – 2G, 3G and LTE, further complexities

16

Mobile vs. Fixed

Mobile Applications

• LTE Mobile Industry (3GPP) focused on mobile services:

Mobility, including high speed 120 km/h plus

Roaming between providers

Using SIM/USIM for global authentication and service subscription

Integration with existing 2G/3G networks, inter-technology handover, integration with CORE and backend systems

Support of voice and SMS services based on IMS

Support for various regulatory requirements such as 911

18

Fixed Applications

• Fixed BWA applications (ie: WiMAX) focus on DSL-like service:

Fixed and reliable connectivity

IP & Ethernet transparency for Metro Ethernet, VLAN or IP DHCP over wireless

LTE media (IETF based)

Telephony-like services over broadband wireless, using cost-effective SIP vs.

costly IMS-based service

Authorization & Security

Local secret credential, e.g. using username/password (in WiMAX, based on EAP-

TTLS), simplifying the operation for local connectivity (no need for 3GPP’s IMSI

global credential)

Simplified CORE and QoS, e.g. using simple AAA RADIUS-based solution (vs.

3GPP HSS DIAMETER-based), enabling static or pre-provisioned QoS solution

(vs. complicated and costly 3GPP PCRF solution)

19

What Level of Service Do We Expect? 20

Wireless-DSL: Wireline Replacement

BWA Fixed Broadband

Cellular Mobile

“Connected-Everywhere” Service

Experience

Always-on: 99.999 Service Level

“Adjust to Your Bar” Level – 70-90% Service

Grade Of Service

Differentiated: Committed to SLA

“Best-Effort” Level QoS

Speed DSL Level:

1-10 mbps Continuous “Peak Rate, Where you Can”

Mobile vs. BWA Fixed

Services MOBILE BWA FIXED

Roaming Important Not Relevant

SIM/USIM (Global credentials: IMSI)

Important Preferable Local Credentials : User/PWD, e.g. TTLS

Mobility – Intra-technology Important Required

Mobility – Inter-technology (with 3G UTRAN)

Important Not Relevant

Voice service Based on VoLTE (IMS framework) Using simple SIP based solutions

QoS Dynamic based on PCRF Simplified PCRF, enabling preconfigured QoS sessions

L2: LAN, L2VPN Not Relevant Commonly used for feeding, access, enterprise networks, industrial connectivity

IP transparent services Commonly used simple IP access Required for various applications: IP bridging, DHCP transparency, static IP, multihosting

Authorization, Authentication & Accounting

Based on Diameter based HSS, OFCS, OCS & PCRF

Preferable cost effective Radius based AAA solution

21

WiMAX to TD-LTE Transition Roadmap

WiMAX to LTE

• Transition of WiMAX to TD-LTE requires full capabilities as part of standard and global adoption

• Currently 3GPP is focused on the Mobile/Cellular industry

• October 2012 - WiMAX Forum announced WiMAX Advanced Release 2.x

Supports operator transition from WiMAX to TD-LTE – coexistence of multi-platform networks

• Support fixed BWA requirements as part of WiMAX Advanced Release 2.x activity

• Allows slower paced transition, more mature LTE ecosystem, continued customer base support

23

Fixed and Mobile Convergence (FMC)

Radio Deployment Device Characteristics

• Mobile & fixed networks use different User Equipment types Handheld devices - mobility: smartphones, USB dongles,

personal WiFi routers, etc.

Desktop modems – fixed: alternative to residential wireline DSL, data with integrated WiFi router and PSTN using SIP VoIP

Outdoor UEs/CPEs – fixed: high-end customers (e.g. business, enterprises) for high quality connectivity, support variety of LAN/L2, i.e. 802.1q, 802.1p, multiple VLANs, and VLAN tagging

25

Deployment Variations 26

UEs Antenna

Line-of-Sight

Condition

Coverage /

Interference

Modulation

& Services

High Gain, Directional Antenna

LOS or Near-LOS Deployment

Directional Antenna, Inter-cell

Interference Sensitive

High RSSI, Higher QAM at Cell Edge

Low Gain, OMNI-Antenna Devices

NLOS & Multipath Diversity

Small Coverage Areas

Coverage-oriented deployment ,

Capacity extensions

Characteristics FIXED MOBILE

FMC Deployment Approach 27

- for Fixed and Mobile - for Mobile only

• Offload pure Mobile cell sites from Fixed sites or vice versa

• Enable higher frequency reuse for Fixed

• Low frequency reuse for Mobile is applicable

• For 3.5 GHz Hybrid Small Hyper Cell (HSHC) vs HetNet

Optimized FMC Solution 28

HSS/

AAA

Converged RAN Mobile EPC WWW

Telrad

Distributed

EPC

IMS

Backend Systems

• Distributed EPC – Optimized solution for data-centric Mobile & Fixed services

Offloading Fixed / Nomadic traffic from Mobile

Localized traffic termination – saves transport cost

Enabling unified policy and subscription management

Dual Mode WiMAX & LTE

29

Dual Mode Benefits

• 4G solutions benefit operators navigating new LTE territory

• Maximize WiMAX investments

• LTE-Advanced capabilities; WiMAX maturity

• Smooth migration path at own pace: WiMAX to LTE

• Leverage 2.3, 2.5, 3.5 & 3.6 GHz LTE offload solution

Fixed services over LTE - real convergence of mobile & fixed

• Cost saving single units

• Operational freedom and flexibility

• Reduced CAPEX and OPEX

30

Multi-Technology Approach

LTE Advanced

No Transition

WiMAX

ASN GW

Multi -Technology

SDR

EPC

Coexistence

LTE

WiMAX

ASN GW

EPC

Co-Existence

31

Dual Mode Topology Coverage 32

Rural

Dense Urban

Remote

Suburban

Urban

4G

Dual Mode

Portfolio

Hidden Areas

Let’s Review

• Dual Mode Flexibility, Cost Efficiency

• WiMAX Advanced -> WiMAX to LTE Migration

Allows WiMAX and LTE operation using same infrastructure

More and more manufacturers will be developing their

technology roadmaps with LTE-Advanced product lines

Dual mode functionality helps operators with CAPEX and OPEX

Perfectly suited for African region - affordable, practical evolution

Future-proof investments, enables transition at own pace

33

Our Vision: Enabling TD-LTE For Any Application 34

Businesses Residential

Video Surveillance

Mobile Industrial & Private Networks

www.telrad.com