3GPP UMTS LTE 3GPP2 cdma2000 1xEV-DV 1xEV-DO Turbo Decoder with Optional Viterbi Decoder

Overview

Key Features

• Turbo Decoder
• 8 state 3GPP (UMTS and LTE) and 3GPP2 cdma2000 (1xEV-DV Release D and 1xEV-DO Release B) compatible
• Rate 1/2, 1/3, 1/4 or 1/5
• 40 to 5114 (3GPP UMTS), 40 to 6144 (3GPP LTE) or 17 to 21504 (3GPP2) bit interleaver
• Optional external interleaver parameters for 3GPP LTE and programmable row coefficients for 3GPP2 interleaver
• Up to 309 MHz internal clock
• Up to 29.4 Mbit/s with 5 decoder iterations
• 6-bit signed magnitude input data
• Optional log-MAP or max-log-MAP constituent decoder algorithms
• Up to 128 iterations in 1/2 iteration steps
• Optional power efficient early stopping
• Optional extrinsic information scaling and limiting
• Estimated channel error output
• Implement one, two, three, or four different standards from the one core
• Free simulation software
• Viterbi Decoder (Optional)
• 16, 32, 64 or 256 states (constraint lengths 5, 6, 7 or 9, encoder memory m = 4, 5, 6 or 8)
• Rate 1/2, 1/3 or 1/4
• Data lengths from 1 to 32768-m bits with tail termination of m bits
• Optional tail biting decoding from m to 2048 data bits
• Up to 7.1 Mbit/s (256 state) or 24.4 Mbit/s (16, 32 or 64 states)
• 6-bit signed magnitude input data
• Estimated channel error output
• Available as VHDL core for Xilinx FPGAs under SignOnce IP License. ASIC, Altera, Lattice and Microsemi cores available on request.

Block Diagram

Deliverables

• All licenses
• Xilinx VHDL core
• Test vector generation software
• VHDL ASIC License
• ASIC VHDL core
• C++ bit/cycle exact simulation model

Technical Specifications