LTE Cat-0 turbo decoder

Overview

TC1770 is a IoT-optimized turbo decoder Core compliant with LTE Cat-0 / Cat-M (release 12 and release 13). This Core incorporates LTE rate matching and an efficient HARQ combining algorithm thats makes it ideal for operation in the range of low SNR. Its small footprint and low power consumption enable to build a very competitive solution compared to a software-only based solution.

Key Features

  • Covers: Inverse rate matching, HARQ combining, CTC decoding, CRC check
  • Maximal payload block size selectable at synthesis
  • Throughput range 1 - 10 Mbits/s
  • Efficient early stopping for reduced power consumption
  • Compacting of HARQ-combined streams - saves HARQ buffer memory
  • Channel BER estimator
  • Flexible quantization level selectable at synthesis
  • Block-by-block change of configuration (block size, number of iterations, ...)
  • Clock gating scheme for low power consumption
  • AXI stream interface

Block Diagram

LTE Cat-0 turbo decoder Block Diagram

Applications

  • LTE Cat-0
  • LTE Cat-M
  • IoT

Technical Specifications

Foundry, Node
all
Maturity
silicon proven
Availability
off-the-shelf
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Semiconductor IP