4G multi-mode Viterbi decoder Product code: TC2000

TC2000 is a flexible Viterbi decoder covering LTE, 3GPP WCDMA and WiMAX 16e/m specifications. It can also be tailored efficiently to single mode core as LTE only for example. Its high throughput architeture enables to reach the following throughput performance on high end process nodes:

• above 400 Mbits/s in LTE mode, depending on target process.
• above 200 Mbits/s in WCDMA mode, depending on target process.

Functional coverage:

• 3GPP LTE :
• 64-states convolutional code with tail biting
• 20 to 1024 bits payload with bit-granularity
• Rate matching support
• inverse bit selection including combining in case of repetition
• inverse bit collection
• sub-block deinterleaving
• CRC check (CRC16B/CRC8B) with scrambling mask
• 3GPP-WCDMA :
• 256-states convolutional code with tail bits
• 1 to 504 bits payload with bit-granularity
• code rate 1/2 and 1/3

Features:

• parameterized traceback length
• on-the-fly change of mode, block length, code rate and traceback length
• no external memory required
• Channel quality estimator
• Low power Core
• Silicon proven
• ASIC Core: Verilog or VHDL RTL source code
• FPGA Core available on all popular Altera, Lattice and Xilinx devices

Related Cores:

• Multi mode CTC / CC encoder (TC1750)
• 4G multi mode decoder (TC1700)