What is TV White Space ?

802.11af, 802.22 or LTE-TDD

Internet Revolution ???

How does it works ?1 2

3 467

8

9

PMSE-DB is a web-based tool. It supports frequency planning for events. This ensures smooth operation of wireless devices for all participants.

Available spectrum of rural area in USAhttps://www.google.com/get/spectrumdatabase/channel/2700 foster avenue arcata ca

Available spectrum of urban area in USAhttps://www.google.com/get/spectrumdatabase/channel/1281 Oakmead Pkwy #201, Sunnyvale, CA

Effect of Deployment

Applicationshttp://www.carlsonwireless.com/solutions/

SCADA = Supervisory Control And Data Acquisition,= 산업제어 시스템

Compare, Super WiFi vs LTE-TDD to support HotSpot

Super WiFi (802.11af or 802.22)

LTE -TDD(3GPP TS Rel 9)

Data TPUT DL 26 Mbps @ 256-QAM 0.83 coding rate

DL 29 Mbps @ 64-QAM 0.93 code rateUL/DL configuration = 2

Radio ResourceScheduling Autonomous Scheduling eNodeB Centralized Scheduling

Asymmetric Traffic Supported by CSMA/CD Supported by UL/DL configuration

QoSLoose QoSVoice traffic can be NOT be supported in heavy load

Tight QoSVoice traffic can BE supported even in heavy load

Support User Equip-ment (CPE)

Super WiFi <-> WiFiRF Converter is requiredNot Spread in market

LTE-TDD <-> WiFiRF Converter is requiredWidely Spread

Competitors Many in USA Hawei is studying business opportunity.

Dealing cost to Aritel

All New Development.Cost is High

Dealing RF Converter, CPE, and EPCCost is Medium

802.11af, the IEEE has standardized another white space cognitive radio standard, 802.22.[1]

While 802.11af is a wireless LAN standard designed for ranges up to 1 km,

802.22 is a wireless regional area network (WRAN) standard, for ranges up to 100 km.[

Architecture of LTE-TDD femto to support HotSpot and Challenges

IP Net-workEPC Aritel’s

femtoRF Con-verter

RF Con-verter

LTE-TDDRouter

WiFi AP UE

Technical Challenges - Support 6/7/8/16 MHz BW - Access to White Space Database - Development of OAM system - Satisfy TVWS spectrum mask - Additional UL/DL Configuration - Control RF Converter and LTE-TDD Router - Use Directional Antenna - Capacity for simultaneous connection (~ 32) - Carrier aggregation for more throughput

Business Challenges - Finding partner who can provide CPE on TVWS - Finding buyers - Support Field Issue after Supply

OAM

White Space

Database

LMK

Google

MVNE LMK HAWEI ipTime Notebook PC

Smartphone

Gamma-Nu

Gamma-Nu

Aritel

Aritel

Network CPE

Controller