Broadcast Transmitter Architecture With External Channel Coding
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Solution Overview
Problem
Modern broadcasting systems face challenges in reducing costs while maintaining functionality due to the need for cost-efficient transmitters that can perform channel coding, which is often computationally intensive and requires significant computational power.
Innovation Solution
A broadcasting system with a separately formed channel coding module that performs channel coding for transmitters, reducing the need for internal processing units in transmitters and allowing for optimized encoding and control signal management, thereby reducing overall system costs and enhancing encoding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If channel coding is performed within each transmitter, then the transmitter can independently encode signals, but the computational power required and costs increase significantly
Solution Approach 1:
The channel coding function is extracted from the transmitter and implemented as a separate network entity (coding function network element). This extraction removes the computationally intensive encoding task from the transmitter, allowing the transmitter to focus only on signal transmission while the dedicated coding element handles all channel coding operations for multiple transmitters
Solution Approach 2:
The coding function network element serves multiple transmitters simultaneously, providing a universal channel coding service to the entire broadcasting system. This multi-functional approach allows one coding element to replace many individual encoder units, reducing overall system complexity and cost
2Adaptability or versatility
If each transmitter includes an integrated processing unit for channel coding, then the transmitter is self-sufficient, but the overall system costs increase
Solution Approach 1:
Multiple transmitters are merged in their dependency on a single coding function network element. Instead of each transmitter having its own independent coding unit, all transmitters share the same coding resource, creating a centralized coding architecture that reduces total system cost while maintaining transmitter operational independence
Solution Approach 2:
The coding function network element acts as an intermediary between the data source and the transmitters. It receives data to be transmitted, performs channel coding, and sends the coded data to multiple transmitters, thereby mediating the encoding process and eliminating the need for integrated encoders in each transmitter
3Productivity
If transmitters perform channel coding locally, then encoding can be optimized for each transmitter, but computational resources are wasted due to redundancy
Solution Approach 1:
Channel coding is performed in advance by the dedicated coding function network element before data is distributed to multiple transmitters. This preliminary encoding action ensures that the same coded data can be reused across multiple transmitters, eliminating redundant computational efforts and reducing total energy consumption
Data Source
AI summary
A broadcasting system for broadcasting and/or streaming of data includes a gateway and at least one transmitter. The gateway is configured to forward digital content received to the transmitter. The transmitter is configured to transmit the digital content over-the-air. The broadcasting system includes channel coding circuitry that is separately formed with respect to the transmitter. The channel coding circuitry is configured to perform the channel coding of the digital content at least partly which is to be transmitted over-the-air by the transmitter. Furthermore, a method of processing data to be transmitted over-the-air is described.