IEEE 802.16 WirelessMAN OFDM Channel Codec

Overview

An IP block combining all functions required to implement an 802.16a WirelessMAN-OFDM Channel Codec.
This core is intended to accelerate the development of an 802.16a solution by combining all of the required back-end Phy layer functions in a very easy-to-integrate package. It interfaces to the MAC and to the FFT section of an 802.16a solution in addition to providing a register bank interface for configuration by the host processor.
In addition, the core performs all of the burst profile management functions that are required to support the dynamic code-rate and QAM order switching between bursts. The different operational modes of 802.16a are fully supported within the block with minimum overhead to the CPU.

Key Features

  • Fully compliant with the 802.16a WirelessMAN-OFDM-Phy Layer Specification.
    • QAM Mapping and Demapping
    • Interleaving/ De-interleaving
    • Convolutional Encoder/Viterbi Decoder
    • Reed-Solomon Encoder/ Decoder
    • Randomiser/ De-randomiser
  • Simple MAC management of burst profile changes within the upstream and downstream channels.
  • Advanced Error Control capability using Symbol Weight inputs.
  • Designed in C++ with vector matched VHDL source code.
  • Supplied with build scripts for ASIC or Xilinx FPGA targets using Synopsys DC Ultra‰ and Synplify Pro“.

Deliverables

  • Designed in C++ with vector matched VHDL source code.
  • Supplied with build scripts for ASIC or Xilinx FPGA targets using Synopsys DC Ultra‰ and Synplify Pro“.

Technical Specifications

Availability
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Semiconductor IP