This document proposes a hybrid communication solution using satellite and cellular networks to provide education in rural areas lacking infrastructure. It describes current issues in rural schools like lack of teachers, teaching aids, and qualified instructors. The proposed solution uses a satellite link to broadcast interactive smart classes to rural schools, while allowing students to ask questions via SMS, calls or video using a cellular return link. This provides a centralized way for qualified teachers to educate multiple locations simultaneously while still allowing interactivity. The system also aims to benefit local communities by providing internet access after school.

1. Hybrid Communication Solution
for
Network Deficient Areas
Rural Education
Use Case
Bhupesh Sehgal

2. bhupesh@blu-i.net

3. Schools in Rural India – Current Scenario
• Lack of Basic Infrastructure in Schools
• Lack of Qualified Staff
– Lack of Specialized Teachers for Specific Subjects
– One Teachers doubles up for
• Multiple Classes
• Multiple Subjects
• Lack of Teaching Aids

4. Pain Points in Rural Schools
• Qualified Teachers do not wish to move to
Smaller Towns and Villages
• Teaching Aids / Smart Classes Products available
however
– Expensive for Deployment in each and every Rural
School
– Difficult to Operate even for Qualified Teachers in
Towns & Cities
• Does not solve the problem of the students
– If students have difficulty in understanding – Students
would still need some guidance.

5. Communication Solution
For
Rural Education

6. Modulator
Satellite
uplink
End user
VSAT Terminal
Internet
Satellite
Internet user
Encapsulator
VSAT
Modem
Internet over VSAT – Traditional

7. Hybrid Internet Solution To Recue
• Internet Links need both Front & Return
Channels to be from same Device / IP for the
handshake, Data Transfer
• Hybrid Solution Resolves this.
– Manages “Handshake” between the Out-Bound and
In-Bound data from 2 different sources / routes
– Take care of the Delay in the transmission
– Completes the Data Link

8. Encapsulator
Hybrid Server
Satellite uplink
End user
Return channelInternet
Satellite
Internet user
Internet only
Hybrid Modem
bhupesh@blu-i.net
2G /3G /WLL
Hybrid Solution

9. Encapsulator
Hybrid Server
Satellite uplink
End user
Return channelInternet
Satellite
IPTV encoder
Internet user
TV viewer
(student)
IPTV + Internet
Hybrid Modem
- Red arrows: Internet dataflow
- Blue arrows: IPTV dataflow
- Grey arrows: Combined data flow
bhupesh@blu-i.net
2G /3G /WLL
Hybrid Solution

11. Hybrid Box
• In-Coming – DVB-S2
– Can work on C or Ku Band
• Out Bound – Any Available return Channel
– GSM Dongle, ADSL, Fibre, Leased Line, WLL
• Easy to Install & Configure
– Like installing a “DTH – STB”
– Plug “n” Play
– Providers Signal Level on PC Monitor to peak the
antenna
• 1 Box can support Multiple Classes in a Local LAN
Network

12. Interactive Visual Based Classes
The Class can be conducted from a Central Location with all the Modern Teaching Tools
Broadcasted over DVB / IPTV over 1-Way Satellite Link

13. Smart Screen Projector
Converts any Wall into a Smart Device

14. Smart Screen Projector
•Projector with acts like a PC or a Tablet on any Wall
•Reacts to Touch, can Type and Scribble
•Provides a Real-Time 2 Way Communication

15. Biology
Solar System
Story Time
River Systems History
Plants Reproductive System
Physics
Crops and Agriculture
Geometry
Smart Classes Digitized
Course Examples
bhupesh@blu-i.net

16. Classes for Rural Indian Schools
• Classes with all Teaching Aids can be Broadcasted via Rx-Only
– DVB-S2 / IPTV
• Rural Schools Display Broadcast over TV/ Micro LED Projector
via Rx-Only Dish (Solar Powered)
• 1st Level of Questions / Explanation would still be handled by
Local Teachers
• Questions that need further explanations can be sent via
– SMS Text / App
– Voice Call
– Video Link
• Questions can be taken up by a group of qualified teachers
and respond back individually to each student.
• Important Topics can be taken up over the Broadcast for the
benefit of all.

17. Broadcast Smart Classes
• Classes conducted by Qualified Teachers using
Modern Teaching Aids can be broadcast.
• Teaching Aids can be
– Traditional Black Board / Smart Board as Screens
– Audio / Visual (Smart Classes Tools)
– Real Time Class Room Experiments
• Remote Classes System (Satellite Rx Modem &
Projector can Operate on Solar Planel.

18. Hybrid Network Connectivity Rural School
Teacher
Return Link
Connectivity over
GSM Dongle
Remote School
Connectivity over
Rx Only VSAT
C / Ku Band Satellite
Smart Class on TV
Smart Class

19. C / Ku Band Satellite
State 1
State 2
Transmission over
DVB-S2
to Remote Location
Suggested Hybrid Network Layout
Using VSAT and GSM Return
Redundancy
Link
Primary Link
on IP
Backbone
Central School
Help DeskCentral School
Broadcast Site
State N
Rural Schools
Broadcast from
Central School
Return
Path from
GSM
Operator
Classes in
Rural Schools
bhupesh@blu-i.net

20. After Classes Access
• Course Material Can also be accessible to all
students after school hours.
• Students can access Internet
– Review Classes already conducted
– Read Books
– Search
• Network Can be extended to benefit the Local
Community
– Panchayat
– Farmers Community Center
– Post Office

21. Hub at State Capital
Post Office
Police Station School
Hospital
Panchayat
Farmers
Community Center
Old Home
WiFi
Connecting Local
Community
VSAT
Connecting
City HUB
Govt Office

22. Our Strength
• Can use 3rd Party Content or Create in-house
Content
• Content can be modified Real-time with Black-
Board Experience from teachers
• Can support Live Studio / Stored Content
Broadcast
• Multi-Modal Communication
– One to All
– One to One (For Q & A)
– One to Many (For Q & A)

23. Our Strength
• Partnered with BSNL for Delivery of Services
across India
– Cheaper than 2 Way VAST
– No VSAT Transmission from Remote Site hence
• No SACFA / WPC Licensing Requirement
– No Specialized Man Power for Installation /
Support
• Easy Installation
– 5 Installations Per Day Per Team
– Trained Manpower available for Installation
• Experience in setting up Back End Systems
and Processes for services roll-out

24. Our Deliverables
• 2 Way Hybrid System for Communication in
Remote Areas
– Antenna
– Hybrid Modem
– USB Dongles for GSM Return Channel
• Smart Screen Projector
– With Feed Back Mechanism
• Back End System at Teleport
• Contact Centre for Teachers for Interactivity
and Response – Back End Process

25. Thank you