|
Analysis of WiMAX over Satellite
Key Technologies : Wimax.
Abstract:
HSC did an exact estimation of Wimax over a satellite link. A quantitative and qualitative analysis was done for performance, capacity (in terms of voice calls per MHz), setup time of voice calls and various overheads viz. spectral over heads, protocol overheads etc.
Read more...
|
|
|
Satellite Terminal Access Stratum
Abstract:
HSC has been involved in Design, development and integration of Satellite Access Stratum (AS). based on 3GPP Release 6 Specifications. HSC was responsible for complete AS Design/development as well as integration with multiple interfaces viz. Non-Access Stratum (NAS), Physical Layer, Network and Platform.
Read more...
|
|
|
DVB-s2 satellite modem
Key Technologies : RTL Design, DVB Satellite Modem, Xilinx Virtex 5
Abstract:
The architecture below comprises of a Broadband VSAT system consisting of FPGAs having interface with DSP & custom SoC. The Adaptive coding and modulation (ACM) feature means that the coding (FEC rate) and modulation DVB-S2 outbound carrier can be dynamically modified to optimize the performance per terminal.
Read more...
|
|
|
Enhancing IPv4 VSAT to a Dual Mode VSAT (IPv4/IPv6)
Abstract:
Typically a VSAT has two major interfaces, the LAN side on which it has subtended user networks and the RF Network side. Implementation includes IPv6 Neighbor Discovery and translation algorithms for IPv6-IPv4-IPv6 traffic terminating on the VSAT. This enabled an IPv6 host to access application on VSAT supporting only IPv4.
Customer Benefits:
Flexibility of subtending IPv4 or IPv6 networks on the LAN side
Enable IPv6 interface with minimal changes on the existing software on the VSAT.
Read more...
|
|
|
GMR-1 Mobile Satellite System
Key Technologies : GMR-1 L2/L3 protocols, STL, ATCA.
Abstract:
The intent was to develop a Gen 2 gateway on a different hardware and a different platform. For this, some parts of the Gen 2 gateway were designed and developed afresh while some were ported on the new platform and some were just modified to support Gen 2 gateway.
Read more...
|
|
|
GMR-3G Satellite Terminal
Key Technologies : GMR-3G L2/L3 protocols, ARM 11 core.
Abstract:
HSC developed the access stratum including L2/L3 protocols, stack mgmt and PDCP which involved complete system architecture and design. HSC also participated in the integration testing of the Access stratum as well as the NAS-AS integration. Specific handling was done for the voice streams.
Read more...
|
|
|
Satellite and Terrestrial Hybrid Network
Key Technologies : GMR1-3G, 3G-UTRAN.
Abstract:
HSC developed various key functionalities of the SBSS node viz. Control channel mgmt, control plane and user plane components, RRM/RRC development, inter RAT/inter system handover etc. Various optimizations were done at RRC procedures to minimize the protocol delays.
Read more...
|
|