GEO-Mobile Radio (GMR) is an ETSI standard for satellite phones. The Creonic GMR Decoder IP core supports the PNB2 burst packets that were added in GMR Release 2 (GMPRS-1) and use LDPC codes for the first time. The same burst modes and LDPC codes are also in GMR Release 3 (GMR-3G). The Creonic GMR LDPC decoder IP core is a field-proven solution.
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Kevin Christoffers
Director - Business Development & Sales
Product Brief
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- Satellite Telephony
- Further Low-throughput Applications
- Compliant with GMR Release 2, ETSI TS 101 376-5-3 V2.3.1 (2008-07) (GMPRS-1 05.003)
- Compliant with GMR Release 3, ETSI TS 101 376-5-3 V3.1.1 (2009-07) (GMR-3G 45.003)
- Support for return and forward link
- Support for short PNB2 (5,3) bursts and long PNB2 (5,12) bursts
- Support for all PNB2 modulation schemes (Pi/4-QPSK, 16-APSK, 32-APSK)
- Support for all PNB2 shortening, repeating, and puncturing schemes
- Support for all PNB2 LDPC codes (approximate channel coding rates 1/2, 2/3, 4/5, 9/10)
We are ISO 9001:2015 certified
Our customers can rely on consistently high quality, guaranteed by our certified quality management.
- FPGA-proven design, validated with satellite data
- Soft-decision demapper, LLR-descrambler, block deinterleaver, and LDPC decoder included
- Low-power and low-complexity design
- Burst-to-burst on-the-fly configuration
- Design-time configuration of throughput for optimal resource utilization
- Faster convergence due to layered LDPC decoder architecture
- Early stopping criterion for iterative LDPC decoder, saving a considerable amount of energy
- Configurable amount of LDPC decoding iterations for trading-off throughput and error correction performance
- Collection of statistic information (number of modified information bits, number of iterations, decoding successful)
- The software model includes the corresponding transmitter part
- Deliverable includes VHDL source code or synthesized netlist, VHDL testbench, and bit-accurate Matlab, C or C++ simulation model
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Available for ASIC and FPGAs
