 Implements
the WiMAX IEEE802.16e/m and 3GPP Long Term Evolution (LTE) specifications.
All 802.16 block
sizes (40-4800) are supported.
All 188 3GPP LTE
block sizes (40 - 6144) are supported.
Optional 3GPP HSPA
- support all block sizes 40-5114.
Based on our silicon
proven high throughput LTE CTC decoder.
Area is only 20%
higher than single mode of WiMAX or LTE CTC decoder.
Block-by-block change
of decoder mode / block size / number of Iterations.
Scalable decoder
architecture, to support various throughput targets, from low
to ultra high at constant number of iterations (400Mbps at 8 full
iterations, technology dependent).
Sophisticated early
termination mechanism to support power saving and higher statistical
throughput.
All-synchronous
design using a single clock, except for global asynchronous reset.
Code optimizations
for ASIC (power saving) and FPGA (area saving).
Available as verilog
(optional VHDL) source code.
download
product brief
Turbo code decoder general diagram
Implementation
The base decoder is Max Log MAP with LLR scaling. This decoder
gives only -0.1 dB performance compared with MAP/log MAP decoders,
but ~40% smaller.
Ordering information
Dual-mode Turbo Code decoder available as verilog source code
or as EDIF netlist for Xilinx/Altera FPGAs families.
Delivery includes:
Verilog/VHDL
source code or verilog EDIF netlist.
Extensive
Verilog testing environment.
Bit-exact
Matlab model.
Detailed
documentation.
For more information please contact
us
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