Development of Universal MSS Terminal Hardware

Request for Proposal on

Development of Universal MSS terminal Hardware

GENERAL BACKGROUND

Space Applications Centre (SAC), ISRO invites quotations from the reputed vendors/parties for development & packaging of Universal MSS Terminal (UMT) which is a s-band transceiver withtwo-way voice communication capabilities at programmable bit rates. The hardware design and development is to be done as per the specifications/requirements given in this document.

This document describes all aspects of the system, which helps to understand the design, development, quality assurance & deliverable items for the terminal.

CONTENTS

Section - A:Introduction

Section - B:Specifications,Block schematic and technical details

Section - C:Scope of work

Section - D:Guidelines to vendors for preparation and submission of quotation

Section - E:Details on deliverable items

SECTION – A

INTRODUCTION

Space Applications Centre, Ahmedabad is developing Universal MSS Terminal (UMT) operating with MSS Transponder of GSAT series satellite. This is a battery operated handheld and light weight terminal.

The requirement from vendor is to understand design requirements, develop the hardware with proper packaging in consultation with SAC team. SAC team will provide the schematic details of reference hardware used for the concept demonstration. However, vendors are to make the design changes in consultation with SAC team to meet any packaging requirements or to help miniaturization.

The terminal developed is to be used for two-way voice, video and data communication applications. The terminal has been named as Universal MSS Terminal (UMT)and isa lightweightsatellite terminal.

This document describes all aspects of the system, which helps vendor to understand the design and carry out development, packaging and quality assurance for the terminal.

SECTION – B

Specifications, Block schematic and Technical details

2.1Introduction:

Universal MSS Terminal(UMT) is meant for providing two-way communications ((voice, video & data) services at reconfigurable rates using a hand-held battery operated terminal. In order to meet the hand-held and mobility requirement a single patch antenna /Quadrifillar helix antenna has been proposed for this terminal, however the packaging should be in such a way to provide SMA connector output from diplexer to operate the hardware with larger antenna, if needed. The packaging of larger antenna will be taken care separately and is not a scope of this RFP. The G/T of the terminal is -22.5 dB/K. The EIRP of the terminal should be 0 dBW with specified antenna.

Features

S-band transceiver terminal to support video, voice and data communication
Two-card solution (Baseband with s-band transceiver & S-band TR module)
Hardware with reconfigurable data rates support (e.g. should supports voice compression at 2.4kbps and 2.7kbps transmission rate for two-way voice communication, 144 Kbps data rate for multimedia applications etc.)
Terminal should supportdata communication from external gadget
Hand-held lightweight miniaturized satellite terminal with In-built GPS
Provision to connected external antenna for high data rate applications
Encryption (optional)
Weight < 500gm

Applications

Two-way voice, video and data communication
Tracking, Sensor data monitoring applications etc.

2.2Specificationsof Satellite Mobile Radio

Sr. No. / Parameter / Specification
Rx Frequency band / 2.56-2.59 GHz
Tx Frequency band / 2.67-2.69 GHz
G/T / -22.5 dB/K minimum
EIRP of the Terminal / 0 dBW (Min)
Modulation and Coding (reconfigurable by firmware change) / QPSK, FEC Rate ½, K=7, Convolution coding
G1=133; G2=171 (IESS 308/309)
Differential Encoding CCITT V.35
Modulation Parameter
Phase Imbalance
Amplitude Imbalance / < 3.0 deg.
< ± 0.2 dB
Voice Compression Rate / 2400 bps
Channel Transmission Rate / 2700 bps
Source Coding / AMBE
Size / 150 x 80 x 35 mm (approx.)
Weight / < 500 gm
Power Consumption
Talk Time:
Standby Time: / : 2 Hrs minimum
: 24 Hrs minimum
End Use of Terminal / Supports two way voice, video and data communication
Temperature
Humidity / -100C to 600C
95% RH at 400C
Interface / 3.5mm Audio Jack, USB Interface

Table 1: Specifications of Universal MSS Terminal

2.3Block schematic and technical details

Figure 1: GSAT-6 Universal Mobile Terminal Hardware Block Diagram

It comprises of the following sub-systems:

Antenna System
S-band TR module – two-types
Baseband with S-band transceiver – Single type
GPS receiver
Power Supply Module

Each sub-system is described below:

The Subsystem specifications are as follows:

2.3.1Antenna System:The UMT is envisaged to work with more than one types of hardware configuration, the antenna system will be different for different applications. However, as part of this development & packaging, the terminal will have an antenna with Omni directional coverage and smaller in size with low weight configuration. Looking at the available options a single patch orQuadrifillar helix is proposed as an option. The specification of which should be as follows:

Serial No. / Parameter / Value
1. / Frequency
(GHz) / Tx Band / 2.67 – 2.69
Rx Band / 2.56-2.59
2. / Gain
(dB) over ± 45 deg. / Tx Band / 2.5 dBi Min.
Rx Band / 2.5 dBi Min.
3. / Axial Ratio (dB) over ±10° / Rx Band / <3dB
Tx Band / <3dB
4. / Return Loss / Rx Band / Better than 17dB
Tx Band / Better than 17dB
5. / Polarization / Rx Band / RHCP
Tx Band / RHCP
6. / Size / Suitable for handheld

Vendor has to procure and provide this antenna as part of terminal. SAC team will guide them to appropriate vendor, if needed.

2.3.2S-band TR Module: The block diagram of the TR module is shown below:

Figure 2: TR Module for UMT

Specifications of the TR module are as follows:

SN / Parameter / Specification
(ver-1 : LBR) / Specification
(ver-2-HBR)
1. / Tx Frequency / 2670-2690 MHz / 2670-2690 MHz
2. / Rx Frequency / 2560-2590 MHz / 2560-2590 MHz
3. / Tx Power / 28 dBm at antenna port / 34 dBm at antenna port
4. / Tx Gain / 30 dB / 30 dB
5. / Rx Gain / 40 dB / 40 dB
6. / Tx-Rx isolation
( Should be sufficient for full duplex operation without affecting receive quality) / 55 dB min. / 60 dB min.
7. / Noise Figure
(Overall including diplexer loss
Diplexer loss : 2 dB ) / 3.5 dB Max. / 3.5 dB max.
8. / Power Supply / DC ( + 3.3 V) / DC (+5V or battery voltage equivalent)
9. / Size / Suitable for handheld / Suitable for portable terminal

Table 2: Specifications of TR Module

The TR module for UMT is envisaged in two variants to cater to Low Bit Rate (LBR) communication needs and High Bit Rate(HBR) communication needs. The specification for both the transceiver is given above.

Vendor is requested to design both the version is quantity mentioned in the list of deliverables. However, for packaging purpose, LBR options should be considered. SAC requests vendor to identify the components for TR unit based on their experience and low cost, low power basis. Once finalized SAC team will review the selection and suggest suitable modification, if needed based on mutual agreement.

A common packaging for both TR modules and UMT will help. However, a final decision will be taken at the time of design review.

2.3.3Baseband with S-band transceiver system:This section will be reconfigurable for different data rates and will be responsible for receiving signals at s-band and providing demodulated data to user after limited processing. On the transmit path, this system will format the data from user interface, modulate and transmit at s-band. The block diagram of this subsection is given below:

Figure-3: Baseband with S-band transceiver

The detailed diagram with selected component is provided in figure-1. A GPS receiver is to be connected with baseband ARM controller. A suitable display and keypad should also be delivered with terminal hardware in packaged form (separated package decided at the time of design review). The type of display will be finalized at the time of design review.

The baseband card with s-band transceiver should meet following specifications:

Serial No. / Parameter / Value
General / This is proposed to be a single baseband card with built-in s-band transceiver capability in most miniaturized form factor. The hardware should be battery operated with built-in charging capability to have standalone operations as per specification given.
1. / Frequency
(GHz) / Receive Frequency / 2.56 – 2.59
Tx output Frequency / 2.67 - 2.69
2. / Built-in LO Frequency / Programmable
LO step size / 1 KHz min.
3. / Nominal Input Level / -100 dBm
4. / Noise Figure / Less than 5 dB
5. / Rx Chain Gain / 90 dB min.
Tx Output Level / 0 dBm min.
6. / Modulation / QPSK
7. / ADC Sampling Rate / 12 bit / 80 MSPS typical
8. / DAC Sampling rate / 12 bit / 120 MSPS or better
9. / Baseband Controller / ARM (LPC2368/LPC2468/Cortex-A9 or equivalent)
10. / User Interface / USB, LAN-1 (through ARM), LAN-2 ( through FPGA), UART, GPIO, keypad, LCD, JTAG etc.)
11. / Vocoder / AMBE 2000 / AMBE 3000
12. / Codec / 16 bit linear audio codec
13. / Power Supply / DC Supply
(battery operated with built-in charging capability)

The vendor has to develop the hardware and provide tested hardware along with peripheral drivers (RF transceiver programming, UART, USB, LAN, Display, Keypad etc.) in source form for development of applications. The modem firmware and application development will be responsibility of SAC team.

2.3.4 GNSS(IRNSS/GPS) Receiver

It is proposed to use IRNSS/GPSreceiver for position and time estimation. GPS receives positioning information of the UUT. A GNSS receiver is interfaced to the microcontroller using serial interface i.e. UART. Data pin of the GNSSreceiver is interconnected with the RxD pin of the microcontroller which is usedto collect the positioning data. The specifications of GNSS receiver as specified below:

Table -1IRNSS/GNSS Receiver Specifications

1. / Receiver type / 50 Channels, IRNSS
GPS L1 frequency, C/A Code
2. / Time-To-First-Fix:
Cold Start (Autonomous) / 29 s
Warm Start (Autonomous) / 29 s
Hot Start (Autonomous) / 1 s
Aided Starts / 1 s
3. / Sensitivity:
Tracking & Navigation / -160 dBm
Reacquisition / -160 dBm
Cold Start (Autonomous) / -147 dBm
4. / Maximum Navigation update rate / 5Hz
5. / Horizontal position accuracy:
SBAS / 2.0 m
Autonomous / 2.5 m
6. / Configurable Time-pulse frequency range / 0.1 Hz to 1 kHz
7. / Velocity accuracy / 0.1m/s
8. / Heading accuracy / 0.5 degrees
9. / Operational Limits :
Dynamics / ≤ 4 g
Altitude / 50,000 m
Velocity / 500 m/s

2.3.8Power Supply Module:

The Power supply module for the UMT will provide necessary DC supply to all the sub-system and also include the battery based supply & charging interface. This module may be integrated with baseband module to achieve miniaturization and the decision to integrate is left to the vendor.

The battery sizing should be done in a way to support a talk time of 2 Hours and standby time of 24 hours.

The tentative block diagram for power supply module is as follows:

Figure-4: Power Supply Module Block Diagram

The current rating for each sub-system and selection of regulator will depend on the power consumption of the sub-systems design. This is to be calculated by vendor and submit for approval to ensure two hours of talk time at low bit rate.

SECTION – C

SCOPE OF WORK

The vendor is required to design the PCB & develop the hardware for UMT as per technical details provided in Section-B and packaging in a suitable low weight package. However, to provide the visibility on the work to be carried out by the vendor, the requirements are defined/ mentioned broadly in the Table-3.1.

3.1HARDWARE REQUIREMENT & DEVELOPMENT STAGES

Development of following hardware is required:

All sub-system hardware development as specified in document for UMT
Package Design
1 development unit and 10 proto units with LBR TR module.
Additional 5 TR module for HBR configuration.

The terminal to be developed in following stages:

Component finalization & preparation of schematic diagram, layout and Gerber of all subsystems
Fabrication and testing of the development unit
Modifications in subsystem PCB design (if required) of the development unit for final proto units
Package design and fabrication
Fabrication of first proto unit in package and testing
Fabrication and testing of remaining proto units

3.2TESTING REQUIREMENTS

The vendor shall demonstrate the functionalities of terminal as per Acceptance Test Plan (ATP). The ATP will be prepared by the vendor and approved by SAC.

Testing will be done at vendor site as per ATP.

Table- C.1 Scope of work in the Development of handheld Reporting Terminal

Sub-Systems / Vendor’s Responsibility / SAC Responsibility
Satellite Mobile Radio /

To understand the sub-system & terminal design and development requirements.

Design of each sub-modules/sub-systems, selection of components and preparation of circuit schematic of hardware and generating the complete design document.

To prepare PCB layout based on approved design including signal integrity, thermal analysis etc.

Preparation of ATP

Fabrication of all PCBs and functional testing (Development unit) as per ATP

Display & Keyboard

Modification in design/PCB and fabrication for first proto unit including package, Functional testing. (optional)

Package Design

Fabrication and testing of remaining proto units

Documentation as per RFP

Make the supplier to understand the requirements and functionality

Review of all design, selection of components and documents

To provide baseline reference design

Participation & Approval of ATP

Development of application software and witness all level of testing

Review modification, Package design, Witness all level of testing

Approval

Witness all level of testing

SAC team shall review all the works related to development. The vendor may be called to present the work being carried out at design stage of the development. The suggestions of the SAC team will be final and binding on the party for incorporation during development.

3.3List of Documents to be produced during Development

I.Circuit schematics, component list & details of manufacturer, PCB layout, PCB Garber, component mounting details, drilling details, package design details, Fabrication details etc. in the form of design document.

II.Acceptance Test Plan in the form of ATP document

Note: Two hard copies and one soft copy of each document shall be submitted to SAC for review.

SECTION-D

GUIDELINES TO VENDORS FOR PREPARATION AND SUBMISSION OF QUOTATIONS

4.1Vendors with adequate past experience in design and development of RF and digital system of similar type of projects only are requested to quote for this indent.

I.The vendors are requested to go through the RFP thoroughly and offer compliance/non compliance of each requirement (point by point). In case of non-compliance, the deviation from the specified parameter shall be furnished and for compliance the complete details about parameters, vendor specifications (better or similar) shall be provided

II.The vendor can propose their solutions meeting above specifications in their proposals. Vendors are advised to quote with detail specifications, brand name, and technical specifications of the proposed deliverables with various options and cost break up.

III.Commercial offer shall have validity for minimum 6 months.

IV.Payment terms and other financial details must be mentioned.

V.This is a time bound activity and delivery of the end product should not exceed 24 weeks / 6 months in any case. Vendors are requested to make a note of it. A penalty clause will be applicable beyond delivery dates, if violated without valid reasons. Delivery schedule and dependency should form a part of proposal.

4.2 Terms and Conditions

All information provided by ISRO should be treated confidential and shall be used only for the purpose as mentioned. The reports & hardware will be intellectual property of SAC. Its re-use will be subject to written permission from ISRO.

The vendor shall understand that this is a development activity and minor changes in functionalities are expected. The vendor shall accommodate such changes during development or acceptance or activities at no extra cost.

4.3 Warranty

The supplier shall provide warranty for a period of at least 1 year for any defects in material or workmanship from the date of acceptance. In case of any problem, hardware modification if required during warranty period shall be done free of cost.

4.4 Delivery schedule

The supplier shall deliver all deliverable items within 20weeks/ 5 months from placement of order. The schedule break up shall be provided with the proposal. The duration of ATP and fixing of any problem should be within above specified duration. No extension in delivery schedule will be granted without a valid reason.

4.5 Progresses and Milestone Review

There will be a regular review of the complete activities of vendor by SAC from time to time as per the details given in Table-D.1.

Table – D.1. Activity/milestones for Review

T0: Time of order placement

S. No. / Activity Milestone / Time (in weeks)
Preliminary Design Review / T0+4 Weeks
Schematic Diagram of all subsystems
Fabrication and testing of development unit
Completion of modification suggested in development unit
Package Design
Fabrication of first proto unit
Fabrication of remaining proto units

The remaining schedule breakup can be decided by vendor but it must not exceed 20 weeks under any circumstances.

Note:

In addition to the technical specifications the following information is also to be provided by the company

Company profile
The standards followed by the company like ISO, CMM etc.
Client Lists or any order executed for ISRO, DRDO or similar organization.
Similar Type of Projects handled (Project detail)
Type of Projects handled in last 5 years.
Staff (strength) of the company
The Qualifications/experience of the people who are likely to work in the Project

Section - E

DETAILS ON DELIVERABLE ITEMS

S. No / Item Description / Qty. / Remarks
Development unit
(TR Module + Baseband Card) / 1 No. / To verify the design & performance specification
Final proto units / 10 Nos. / Packaged Terminal with LBR configuration
3. / TR-Module (HBR) / 5 No.
4. / All documents (Design document including schematic, BOM etc., ATP document, Factory test result of each unit , User Manual etc.) / 1 No. / (Hard & Soft Copies)
5. / Circuit schematics, Gerber for PCB, Drilling details, component mounting details, component list (Vendor should use latest version of cad star), Package design documents (Vendor should use latest version of AutoCAD) / 1 set / Soft copy + Hard copy
6. / Peripheral Drivers in source form
(RF transceiver control/ programming, UART, USB, LAN, GPIO control driver, Display & Keypad driver etc.) / 1 set / Soft copy + hard copy

Note: Soft copy of all documents should be in MS-WORD-2007 or compatible format on CD.