4G Turbo-V Intel® FPGA IP User Guide

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ID 683882
Date 10/25/2022
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Document Table of Contents
Document Table of Contents x
1. About the 4G Turbo-V Intel® FPGA IP 2. Getting Started with 4G Turbo-V IP 3. Designing with the 4G Turbo-V Intel® FPGA IP 4. 4G Turbo-V Intel® FPGA IP Functional Description 5. Document Revision History for the 4G Turbo-V Intel® FPGA IP User Guide
1. About the 4G Turbo-V Intel® FPGA IP x
1.1. 4G Turbo-V Intel® FPGA IP Features 1.2. 4G Turbo-V Intel® FPGA IP Device Family Support 1.3. 4G Turbo-V Performance and Resource Utilization
2. Getting Started with 4G Turbo-V IP x
2.1. Installing and Licensing Intel® FPGA IP Cores
2.1. Installing and Licensing Intel® FPGA IP Cores x
2.1.1. Intel® FPGA IP Evaluation Mode 2.1.2. 4G Turbo-V IP Timeout Behavior
3. Designing with the 4G Turbo-V Intel® FPGA IP x
3.1. Generating a 4G Turbo-V IP 3.2. Simulating the IP with the RTL Simulator 3.3. Simulating a 4G Turbo-V IP with MATLAB 3.4. Simulating a 4G Turbo-V IP with C-Models
4. 4G Turbo-V Intel® FPGA IP Functional Description x
4.1. 4G Turbo-V Downlink Accelerator 4.2. 4G Turbo-V Uplink Accelerator 4.3. 4G Turbo-V Signals and Interfaces
4.1. 4G Turbo-V Downlink Accelerator x
4.1.1. Turbo Encoder 4.1.2. Rate Matcher 4.1.3. Input and Output Data Formats 4.1.4. Latency Calculations 4.1.5. Throughput Calculations
4.2. 4G Turbo-V Uplink Accelerator x
4.2.1. Turbo Decoder 4.2.2. Input and Output Data Formats 4.2.3. Latency Calculations 4.2.4. Throughput Calculations
4.3. 4G Turbo-V Signals and Interfaces x
4.3.1. Avalon Streaming Interfaces in DSP Intel FPGA IP
1. About the 4G Turbo-V Intel® FPGA IP
2. Getting Started with 4G Turbo-V IP
3. Designing with the 4G Turbo-V Intel® FPGA IP
4. 4G Turbo-V Intel® FPGA IP Functional Description
5. Document Revision History for the 4G Turbo-V Intel® FPGA IP User Guide

4.1. 4G Turbo-V Downlink Accelerator

The downlink accelerator comprises a code block CRC attachment block and a Turbo encoder (Intel Turbo FPGA IP) and rate matcher.
Figure 4. 4G Downlink AcceleratorThe input data is 8-bit wide and the output data is 24-bit wide. The rate matcher consists of three subblock interleavers, a bit selector, and a bit collector.

The 4G downlink accelerator implements a code block CRC attachment with 8-bit parallel CRC computation algorithm. The input to the CRC attachment block is 8-bit wide. In the normal mode, the number of inputs to the CRC block is K-24, where K is the block size based on the size index. The additional CRC sequence of 24 bits is attached to the incoming code block of data in the CRC attachment block and then passes to the Turbo encoder. In the CRC bypass mode, the number of inputs is K size of 8-bit wide passed to the Turbo encoder block.


Section Content
Turbo Encoder
Rate Matcher
Input and Output Data Formats
Latency Calculations
Throughput Calculations

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