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Overview
 
SeaSolve’s Mobile WiMAX CTC decoder Core performs duo binary turbo decoding of channel data as per IEEE 802.16e/d specification. The decoder uses MAX LOG MAP Algorithm for decoding.
The CTC decoder is capable of achieving a high throughput encode data rate in the slowest speed FPGA also.
 
Fully synthesizable code
Supports all interleaver block sizes of the CTC OFDMA PHY mode including the HARQ and IR HARQ modes: 24, 36, 48, 72, 96,
  108, 120, 144, 180, 192, 216, 240, 480, 960, 1440, 1920, and 2400 pairs.
Programmable number of iterations dynamically changeable per block.
Performs parallel processing with parameterizable number of SISOs to achieve high throughput and reduce latency
  Latency depends on block size
 
 
clk
rst
new_block
no_iter
n_size
a
b
y1
w1
y2
w2
new_data
hard_bits
finished
: in std_logic;
: in std_logic;
: is a pulse;
: is a 3 bit input which reads 0 to 7
: takes the size of the input
: input a
: input a
: input a
: input a
: input a
: input a
: is a valid_out
: output data
: is a done signal
   
 
Inputs
 
 
Outputs
 
 
Deliverables
 
The Core is delivered as a synthesized netlist (FPGA) or RTL VHDL for ASIC. The
Core package contains:
 
RTL-model library for simulation (ModelSim)
stand-alone test bench (VHDL)
complete documentation and technical support for integration
 
 
 
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